Kamis, 20 Agustus 2009

ALUMINUM CASTING MOLD: KUMPULAN INFORMASI PATEN

1.

Aluminum and magnesium alloy sand casting mold

Inventor: SHENGMIN LI [CN] ; XIANGJUN XIE [CN] (+2) Applicant: SHENYANG AIRCRAFT CORP [CN] EC: IPC: B22C9/00; B22C9/08; B22D21/04; (+2)

Publication info: CN201201034 (Y) — 2009-03-04

Abstract
The utility model provides an aluminum-magnesium alloy sand mould casting mould, which is an improvement on the structure of the aluminum-magnesium alloy sand mould casting mould and overcomes the defects of included slag, shrinkage hole and loose strip existing in the aluminum-magnesium alloy cast. The aluminum-magnesium alloy sand mould casting mould comprises a cast mould, an open riser, a straight casting channel, a transverse casting channel and an inner casting opening. The aluminum-magnesium alloy sand mould casting mould is characterized in that the lower part is provided with a closed riser which is communicated with the lower part of the cast mould. The aluminum-magnesium alloy sand mould casting mould has the advantages that because the bottom part is additionally provided with the closed riser, thereby reducing the included slag and avoiding the depression, shrinkage crack, shrinkage hole and loose strip of the surface; and the closed riser can effectively recover the included slag in liquid metal, thereby improving the quality of the aluminum-magnesium alloy cast.

2.

METHOD OF CONTINUOUS CASTING OF HIGH-ALUMINUM AND MOLD POWDER

Inventor: MIYAKE TAKASHI [JP] ; NAKATA HITOSHI [JP] (+3) Applicant: KOBE STEEL LTD [JP] EC: B22D11/111; B22D11/16 IPC: B22D11/108; B22D11/10; B22D11/115; (+5)

Publication info : KR20080108312 (A) — 2008-12-12

Abstract not available for KR 20080108312 (A)
Abstract of corresponding document: GB 2450855 (A)
A method of continuous casting, in which even in the production of a high-aluminum steel with an Al content of 0.1% or higher through continuous casting, a cast piece excelling in surface quality can be produced while preventing the occurrence of depression and cast piece cracking. In the continuous casting of a high-Al molten steel with given chemical components using a mold powder, use is made of a mold powder composed of 35 to 55% T-CaO, 10 to 30% SiO2, 4.0% or less (not including 0%) Al2O3, 0.2 to 1.0% MgO, 7 to 13% Li2O, 7 to 13% F, 10.5 to 14% C and unavoidable impurities, satisfying the relationships 1.6 & [T-CaO]/[SiO2] & 5 and 0.2 & [Li2O]/[SiO2] & 1.1. Further, the operation is carried out while controlling the conditions of rate of melt surface level fluctuation within casting mold, angle of molten steel discharge to a direction of width of casting mold, amplitude stroke, negative strip time (tN) determined by given relationship formula, etc.

Also published as: GB2450855 (A); WO2007125871 (A1)

3.

MOLD LUBRICANT FOR CONTINUOUSLY CASTING ALUMINUM, AND METHOD FOR CONTINUOUSLY CASTING ALUMINUM USING IT

Inventor: WATANABE TAKAMICHI ; HOSOMI KAZUHIRO

Applicant: SUMITOMO LIGHT METAL IND EC: IPC: B22D11/07; B22D11/00; B22D11/108; (+3)

Publication info: JP2009012007 (A) — 2009-01-22

Abstract of JP 2009012007 (A)
PROBLEM TO BE SOLVED: To provide a mold lubricant for continuously casting an aluminum, which has excellent lubricity between the molten aluminum and the mold in continuously casting the aluminum, and which is hardly emulsified in a state of mixing with water, and which is excellent in oil/water separability even after emulsification, so that the oil content in the cooling water can easily be reduced, and a method for continuously casting the aluminum using it. ; SOLUTION: This lubricant contains 60-90 mass% base oil composed of high viscous mineral oil having 300-2000 cSt kinematic viscosity at 40[deg.]C and 10-40 mass% oily material composed of at least one kind selected from sulfonic acid metallic salt and carboxylic acid metallic salt. ; COPYRIGHT: (C)2009,JPO&INPIT

4.

ALUMINUM INGOT MOLD-CASTING AND STRIPPER APPARATUS

Inventor: ZHONGYU QI [CN] ; MINGXUN FANG [CN] (+1)

Applicant: SHENYANG ALUMINUM MAGNESIUM DE [CN]

EC: IPC: B22D7/06; B22D7/00

Publication info: CN201079825 (Y) — 2008-07-02

Abstract of CN 201079825 (Y)
The utility model relates to an aluminum pig mould and stripper apparatus, in particular to an aluminum pig mould and stripper apparatus. The utility model is realized as follows: the aluminum pig mould and stripper apparatus comprises an aluminum pig mould, a guiding platform is arranged at the bottom of the aluminum pig mould, the inner cavity of the guiding platform is communicated with the inner cavity of the aluminum pig mould, the inner cavity of the guiding platform is provided with a working lever, and a backing-out punch is arranged at the lower part of the working lever. The utility model has the advantages and effects as follows: the structure is simple, the accuracy for stripper is high, the service life of the aluminum pig mould is long and the cost is low.

5.

MOLD POWDER FOR CONTINUOUS CASTING OF HIGH ALUMINUM STEEL

Inventor: MIYAKE KOJI ; OMOTO TOMOAKI (+1)

Applicant: KOBE STEEL LTD ; SHINAGAWA REFRACTORIES CO EC: IPC: B22D11/108; B22D11/00; B22D11/07; (+5)

Publication info: JP2008030061 (A) — 2008-02-14

Abstract of JP 2008030061 (A)
PROBLEM TO BE SOLVED: To provide mold powder which can prevent the generation of shrinkages and cracks of a cast slab and can manufacture the cast slab having excellent surface quality even when a high aluminum steel containing 0.1% or more of dissolved aluminum is manufactured by continuous casting process. ; SOLUTION: The mold powder for continuously casting the steel containing 0.1% or more of dissolved aluminum is composed of 35 to 60% of T-CaO, 5 to 20% of SiO2, 15 to 30% of Al2O3, 0.2 to 1.0% of MgO, 7 to 13% of Li2O, 7.0 to 13% of F, 10.5 to 14% of C, and unavoidable impurity, and satisfies the expression; 2.5<=[T-CaO]/[SiO2]<=12.0, where [T-CaO] and [SiO2] show the contents (mass%) of T-CaO and SiO2in the mold powder, respectively. ; COPYRIGHT: (C)2008,JPO&INPIT

6.

POSITIONING DEVICE FOR CORE CASTING ALUMINUM ALLOY GREENSAND MOLD

Inventor: WENXU ZHU [CN] ; KENENG QIAN [CN]

Applicant: HUNAN JIANGLU MACHINERY GROUP [CN]

EC: IPC: B22C9/10; B22C9/10

Publication info: CN200998762 (Y) — 2008-01-02

Abstract of CN 200998762 (Y)
A wrought mold core positioning device for founding the aluminium alloy green sand mold casting is provided, a group of positioning pin bush arranged between a sand mold and a mold core, or among the mold cores and the mold core are connected with the positioning pin, the connection between the positioning pin bush and the positioning pin is a circular conical surface connection matched with quality of fit. During founding the aluminium alloy green sand mold casting, a group of solid positioning pin bush arranged between a sand mold and a mold core, or among the mold cores and the mold core are connected with the mold core accurate positioning device of the pin bush, which overcomes the defect of collapsibility and poor quality of fit in the existing core mark and core print seat, improves the quality of fit between the sand mold and the mold core or among mold cores, and ensures the size precision of the casting. In iron core connection locate mode, the mold core connecting and positioning bin also can take chilling effect to the thermal centre of a axle hole, and also can reduce the contracting and inclining loose of the axle hole position remarkably. The utility model also has simple structure, low cost, convenient operation and easy popularization, which is suitable for the production of founding all kinds of the aluminium alloy green sand mold casting.

7.

TOP MOLD IN-POSITION DETECTOR OF ALUMINUM PISTON CASTING MACHINE

Inventor: RUHUI YAN [CN] ; QIANLIN ZHANG [CN] (+3)

Applicant: BOHAI PISTON CO LTD [CN]

EC: IPC: B22C19/04; B22C19/00

Publication info: CN200988087 (Y) — 2007-12-12

Abstract of CN 200988087 (Y)
The utility model provides an aluminum piston casting machine top die position implement detection device belonging to a device on the aluminum piston casting machine. The utility model comprises a gas transmission pipe the air outlet of which is installed on the top die. The inner cavity of the air outlet end of the gas transmission pipe is interlinked with the via hole on the top die. A pneumatic air redection valve is installed at the air inlet end of the gas transmission pipe. The gas transmission pipe between the pneumatic air reduction valve and the air outlet end is connected with a pneumatic-electric converter. The top die full placing detection device through the pneumatic-electric converter detects the pressure in the gas transmission pipe. When the top die reaches the due place fully and after the pressure in the gas transmission pipe rises to the setted point, the pneumatic-electric converter is connected with an alarming device with a high detection precision and high reliability. The utility model can effectively control the top thickness of the piston blank thus increasing the blank quality of the piston and proventing the aluminum liquid from overflowing to burn operators. Therefore, the utility model has a high value for promotion and application.

8.

MOLD POWDER FOR CONTINUOUS CASTING OF HIGH ALUMINUM STEEL

Inventor: MIYAKE KOJI ; OMOTO TOMOAKI (+1) Applicant: KOBE STEEL LTD ; SHINAGAWA REFRACTORIES CO EC: IPC: B22D11/108; C22C38/00; C22C38/06; (+5)

Publication info: JP2007290004 (A) — 2007-11-08

Abstract of JP 2007290004 (A)
PROBLEM TO BE SOLVED: To provide mold powder which can be manufactured into a cast ingot having excellent surface quality by preventing the generation of shrinkages and cracks in the cast ingot even when continuously casting high aluminum steel containing 0.1% or more of dissolved aluminum. ; SOLUTION: The mold powder is used for continuously casting the high aluminum steel containing 0.1% or more of the dissolved aluminum. The mold powder contains 35 to 55% of T-CaO, 10 to 30% of SiO2, 4.0% or less of Al2O3, 0.2 to 1.0% of MgO, 7 to 13% of Li2O, 7 to 13% of F, 10.5 to 14% of C, and unavoidable impurities, and satisfies the following conditions: (1) 1.6<=[T-CaO]/[SiO2]<=5; and (2) 0.2<=[Li2O]/[SiO2]<=1.1. ; COPYRIGHT: (C)2008,JPO&INPIT

9.

COOLING APPARETUS FOR WHEEL MOLD CONTINUOUS CASTING OF ALUMINUM ALLOY

Inventor: KIM MYOUNG GYUN [KR] ; JUNG JIN HO [KR] (+4)

Applicant: POSCO [KR] ; RES INST IND SCIENCE & TECH [KR] EC: IPC: B22D11/055; B22D11/055

Publication info: KR20070041026 (A) — 2007-04-18

Abstract not available for KR 20070041026 (A)

10.

CASTING MOLD PART, ESPECIALLY FOR PRESSURE CASTING OF ALUMINUM OR MAGNESIUM, CONSISTS OF CONTOUR PART AND COOLED CORE HAVING COOLANT INLET AND OUTLET CONNECTIONS AND EXTERNAL COOLING GROOVE FOR EFFECTIVE COOLING

Inventor:

Applicant: HECK & BECKER GMBH & CO KG [DE] EC: B22D17/22D IPC: B22D17/20; B22D17/20

Publication info: DE202005021053 (U1) — 2007-01-11

Abstract of DE 202005021053 (U1)
A casting mold part (1) consists of a contour part (2) with a specific outer contour and a cooled core (3), slidable into the contour part and having a cooling system consisting of coolant inlet and outlet connections and an external, shaped cooling groove, which lies against the inner wall of the contour part so that the groove and the wall together enclose a cooling channel.

11.

MOLD FOR VERTICAL CASTING OF INGOTS OF ALUMINUM AND ITS ALLOYS

Inventor: CHUVASHOV EVGENIJ GENNAD EVICH [RU] ; SOLDATOV SERGEJ VIKTOROVICH [RU] (+3)

Applicant: OOO INZH T TS [RU]

EC: IPC: B22D11/04; B22D11/07; B22D11/04; (+1)

Publication info: RU2281183 (C1) — 2006-08-10

Abstract of RU 2281183 (C1)

FIELD: metallurgy, namely casting ingots of aluminum and its alloys, mainly high-alloy alloys. ^ SUBSTANCE: mold includes two insulated chambers, namely cooling chamber and pre-chamber. In order to supply liquid lubricant onto working surface of mold, there is turning in upper part of housing. Uniform flowing of cooling liquid is achieved due to vertical and horizontal partitions mounted in chambers. In cooling chamber lower horizontal partition is arranged over supply duct and in upper horizontal partition slit is formed in mean portion. In pre-chamber horizontal partition is mounted with gap relative to lateral lid of mold housing and vertical partition is mounted with gap relative to upper boundary of pre-chamber. Additional supply duct is formed in bottom of pre-chamber. ^ EFFECT: increased casting speed and efficiency of casting machines, high quality of surface of cast ingots due to controlling cooling intensity of cast ingots. ^ 1 dwg

12.

ALUMINUM CASTING MOLD WITH BUILT-IN HOT WIRE FOR MOLDING SOLE

Inventor: BAE SEOK GYUN [KR]

Applicant: KIEUN CASTTEC CO LTD [KR]

EC: IPC: B29C33/08; B29C33/08; (IPC1-7): B29C33/08

Publication info: KR20030087506 (A) — 2003-11-14

Abstract of KR 20030087506 (A)
PURPOSE: An aluminum casting mold with a built-in hot wire for molding the sole of a shoe is provided to improve thermal efficiency and to uniformly keep the temperature of preheating by installing the hot wire at a forming hole. CONSTITUTION: An aluminum casting mold for molding the sole of a shoe is composed of an upper plate(100) having a couple of cores(1,1') protruding downward, a lower plate(200) having a couple of forming holes(2,2') corresponding to the cores, and an insulating material(3) inserted into the lower plate and a lower base(300). A soft steel tube(5) includes a hot wire(4), and is installed at the inside of the cores and the lower inside of the forming holes.

13.

APPARATUS FOR FEEDING ALUMINUM WIRE INTO MOLTEN STEEL IN CONTINUOUS CASTING MOLD

Inventor: KIM SEON HAK [KR] ; WOO NAM JE [KR]

Applicant: POSCO [KR] EC: IPC: B22D11/10; B22D11/10; (IPC1-7): B22D11/10 Publication info: KR20030031808 (A) — 2003-04-23

Abstract of KR 20030031808 (A)
PURPOSE: An apparatus for feeding aluminum wire into molten steel in the continuous casting mold is provided to deoxidize molten steel by feeding aluminum wire into the mold when casting slab by charging molten steel into a continuous casting mold. CONSTITUTION: In an apparatus(1) for feeding aluminum wire into continuous casting mold comprising a drum(10), a guide (G) for guiding aluminum wire (W) unwinding from the drum(10), a feed speed adjuster(20) for feeding the wire into the continuous casting mold and a wire feeder(30), the apparatus(1) for feeding aluminum wire into the continuous casting mold is characterized in that the drum(10) is installed on a moving plate(60) vertically movably installed on the base(50) in such a way that the drum(10) is moved side to side, and first and second wire sensing means(80,90); for sensing vertical and horizontal position movements of aluminum wire (W) being fed are installed adjacently to a wire feeding path (P) between the drum(10) and the guide (G) so that the drum(10) is moved vertically and horizontally according to wire sensing of the sensor means.

14.

CASTING METHOD OF ALUMINUM WHEEL OF CAR AND MOLD THEREOF

Inventor: KIM JEONG YEOL [KR] Applicant: DAELIM MOTOR CO LTD [KR] EC: IPC: B22D17/14; B22D17/00; (IPC1-7): B22D17/14

Publication info:

KR20020040516 (A) — 2002-05-30

Abstract of KR 20020040516 (A)
PURPOSE: A casting method of an aluminum wheel of a car and a mold thereof are provided to keep advantages of die casting while reducing the generation rate of poor products, and to increase the strength and the productivity of the aluminum wheel. CONSTITUTION: A sliding mold(4) divided into at least three pieces is disposed between a solid mold(1) and a movable primary mold(2) formed with a horizontal center gate(3) to form a wheel molding part(5). A movable secondary mold(6) is disposed at side of the movable primary mold to form a runner gate(7) communicating with the center gate and formed with a plunger(8). A vacuum suction passage(10) connected with the wheel molding part and a vacuum pump(12) and formed with a vacuum valve(11) is provided at the uppermost of the sliding mold, thus compressively injecting molten metal into the wheel molding part by the plunger and exhausting air in the wheel molding part by using the vacuum pump.

15.

SURFACE COATING METHOD USED IN THE PRODUCTION OF ALUMINUM ALLOY WHEELS COMPRISES GALVANICALLY COATING THE SURFACE OF A CASTING MOLD WITH A HIGH VALUE METAL ALLOY TO OBTAIN AN OPTIMUM CASTING SURFACE IN THE DESIGN REGION

Inventor: Applicant: STAIGER HANS PETER [DE] ; KLUMPP JOERG [DE] EC: IPC: B22C3/00; B22C3/00

Publication info:

DE202005000959 (U1) — 2006-05-18

Abstract of DE 202005000959 (U1)
Surface coating method comprises galvanically coating the surface of a casting mold with a high value metal alloy to obtain an optimum casting surface in the design region.

16.

MOLD POWDER FOR CONTINUOUSLY CASTING HIGH ALUMINUM CONTAINING STEEL AND METHOD FOR CINTINUOUSLY CASTING HIGH ALUMINUM-CONTAINING STEEL USING THE POWDER

Inventor: OBA YASUHIDE ; KITADE SHINICHI (+1)

Applicant: SANYO SPECIAL STEEL CO LTD

EC: IPC: B22D11/108; B22D11/111; B22D11/16; (+9)

Publication info:

JP2006110578 (A) — 2006-04-27

Abstract of JP 2006110578 (A)
PROBLEM TO BE SOLVED: To provide mold powder for continuously casting a high Al-containing steel which is adjusted so as to possible to restrain the precipitation of high melting point crystal in the powder composition, and a method for continuously casting the high Al-containing steel using this mold powder. ; SOLUTION: In the mold powder used for continuously casting the high aluminum-containing steel containing >=0.80 mass% Al, the mold powder is contained by mass% of <=15% SiO2, 20-50% Al2O3, 20-50% CaO, 5-15% Li2O, 5-20% F, 5-15% total C and the balance as the inevitable impurities, one or three kinds of Na2O, Fe2O3, and this physical properties have >=1.5 basicity (CaO/SiO2), 950-1,150[deg.]C solidification temperature and 0.2-0.5 Pa s viscosity at 1,300[deg.]C. ; COPYRIGHT: (C)2006,JPO&NCIPI

17.

MOLD POWDER FOR CONTINUOUSLY CASTING HIGH ALUMINUMSTEEL AND METHOD FOR CONTINUOUSLY CASTING HIGH ALUMINUM STEEL

Inventor: KAWAKAMI KIYOSHI ; SHIMOKUCHI HARUYUKI (+2)

Applicant: SANYO SPECIAL STEEL CO LTD

EC: IPC: B22D11/108; B22D11/111; B22D11/16; (+9)

Publication info: JP2006110568 (A) — 2006-04-27

Abstract of JP 2006110568 (A)
PROBLEM TO BE SOLVED: To provide a mold powder composition of which is not changed and with which a Gehlenite having high melting point crystal is not precipitated due to the reaction of the mold powder and Al in the molten steel in the mold, when a high aluminum steel is continuously cast. ; SOLUTION: In the mold powder for continuously casting the high aluminum steel containing >=0.80 mass% Al and having the physical properties of >=1,050[deg.]C softening point and >=1.0 Pa s viscosity at 1,300[deg.]C, this mold powder is adjusted to have the physical properties of >=1050[deg.]C softening point, >=1.0 Pa s viscosity at <1,150[deg.]c>2) to <0.50.>

18.

MACHINE WITH CATERPILLAR MOLD FOR CASTING STRIPS FROM NON-FERROUS METALS, ESPECIALLY ALUMINUM AND ALUMINUM ALLOYS

Inventor: LAUENER WILHELM F Applicant: PROLIZENZ AG EC: IPC:

Publication info: CA877859 (A) — 1971-08-10

Abstract not available for CA 877859 (A)

19.

METHOD AND APPARATUS FOR CASTING ALUMINUM BY CASTING MOLD

Inventor: NAKAO YASUHIRO [JP] ; SHOJI HIROTO [JP] (+4)

Applicant: HONDA MOTOR CO LTD [JP]

EC: B22C3/00; B22D21/00B2; (+1) IPC: B22D21/00; B22D27/18; B22D21/00; (+3)

Publication info: US2005257911 (A1) — 2005-11-24

Abstract of US 2005257911 (A1)
An aluminum casting process using a casting mold in which after the cavity ( 25 ) is filled with an inert gas, magnesium is introduced into the cavity to have a magnesium layer ( 58 a) deposited on the cavity wall. Then, nitrogen gas is introduced into the cavity to form magnesium nitride ( 58 b) on the surface of the magnesium layer after the cavity wall is heated to a specific temperature. Then, molten aluminum is supplied to have an aluminum casting molded, while the surface of the molten aluminum ( 39 ) is reduced with magnesium nitride. This makes it possible to form magnesium nitride within a short time and decrease the amount of nitrogen gas as required.

Also published as: US7201209 (B2); GB2393410 (A); GB2393410 (B); US2004244935 (A1); US6986379 (B2); WO03004201 (A1); CA2452404 (A1)

20.

DEVICE FOR THE LOW PRESSURE CASTING OF METALS, ESPECIALLY LIGHT METALS E.Q. ALUMINUM ALLOYS, COMPRISES AN INTERMEDIATE ELEMENT WITH A CHANNEL WHICH CONNECTS AN OUTLET OPENING OF A RISER PIPE WITH THE INLET OF A CASTING MOLD

Inventor: Applicant: RAUTENBACH GUS WERNIGERODE GMB [DE]

Publication info: DE202005010125 (U1) — 2005-09-08

21.

DIE-CASTING MOLD FOR SHEET TYPE ALUMINUM-MADE PRODUCT

Inventor: LI JIAN-HUA [TW] ; CHEN KUEN-MING [TW]

Applicant: CHIA SENG IND CORP [TW] EC: IPC: B22D17/00; B22D17/00; (IPC1-7): B22D17/00

Publication info: TW253420 (Y) — 2004-12-21

22.

LUBRICANT FOR ALUMINUM CONTINUOUS CASTING MOLD

Inventor: HOSOMI KAZUHIRO

Applicant: SUMITOMO LIGHT METAL IND

EC: IPC: B22D11/07; B22D11/00; B22D11/07; (+3)

Publication info: JP2005052874 (A) — 2005-03-03

Abstract of JP 2005052874 (A)
PROBLEM TO BE SOLVED: To provide lubricant for an aluminum continuous casting mold, which has excellent lubricity between the surface of molten aluminum and a mold and can prevent the development of leakage of the molten metal and the development of pit defect. ; SOLUTION: This lubricant 55 is the one used for the continuous casting mold 2 of the aluminum. The lubricant 55 is composed of 5-40 parts wt. of oily material composed of natural fats and oils or/and synthetic ester and 95-60 parts wt. of mineral oil, and has 30-100 mm2/s kinematic viscosity at 40[deg.]C. Further, the carbon number of esterified fatty acid in the above synthetic ester is 10-20. ; COPYRIGHT: (C)2005,JPO&NCIPI

23.

CONTINUOUS CASTING METHOD FOR ALUMINUM SLAB, AND CONTINUOUS CASTING MOLD USED THEREFOR

Inventor: TONO KAZUMI ; ITO TOSHIAKI (+1)

Applicant: NIPPON LIGHT METAL CO EC: IPC: B22D11/049; B22D11/00; B22D11/124; (+6)

Publication info: JP2005014053 (A) — 2005-01-20

Abstract of JP 2005014053 (A)
PROBLEM TO BE SOLVED: To provide a continuous casting method for an aluminum slab, by which leakage and the like of a molten metal are securely eliminated over the whole process, and to provide a continuous casting mold used for the method.

24.

METHOD FOR CASTING ALUMINUM ALLOY IN METALLIC MOLD, AND METALLIC MOLD

Inventor: KATO TATSUHIKO ; MAKIGUCHI TADASHI (+1)

Applicant: SINTOKOGIO LTD EC: IPC: B22C9/06; B22C9/10; B22C9/06; (+3)

Publication info: JP2004261842 (A) — 2004-09-24

Abstract of JP 2004261842 (A)
PROBLEM TO BE SOLVED: To provide a method for casting an aluminum alloy in a metallic mold in which the core is neither deformed nor melted with the heat of the metallic mold in the metallic mold casting method using a core made of a material other than sand, and to provide the metallic mold used for this casting method. ; SOLUTION: The method for casting the aluminum alloy in the dividable metallic mold which uses the core composed of a nitrate or a nitrite or mixture thereof is provided with: a process in which a core print receiving portion in the metallic mold being in contact with the core print for the above core is selectively cooled or held at low temperature; a process in which the above core is set in one of the divided metallic molds; and a process in which the other side of the divided metallic molds is mated with the one side thereof, and the molten aluminum alloy is poured into a formed cavity. ; COPYRIGHT: (C)2004,JPO&NCIPI

25.

MOLD FOR CONTINUOUS CASTING OF ALUMINUM SLAB HAS LONG WALLS WHOSE SPACING CAN BE CONTINUOUSLY ADJUSTED DURING CASTING PROCESS

Inventor: SCHOFER GERHARD [DE] ; LANGEN MANFRED [DE] (+2) Applicant: HYDRO ALUMINIUM DEUTSCHLAND [DE]

EC: B22D11/00A2; B22D11/05 IPC: B22D11/00; B22D11/05; B22D11/00; (+2)

Publication info:

DE10302695 (A1) — 2004-08-05

Abstract of DE 10302695 (A1)
Mold for continuous casting of aluminum slab has long walls (2) whose spacing can be continuously adjusted during the casting process. These are sealed by shorter walls (3) at each end. An Independent claim is included for a method for producing aluminum slab using the mold.

26.

SAND MOLD ALUMINUM ALLOY CASTING AND ITS CASTING METHOD

Inventor: HONSAKI TOSHIYUKI ; KANDA TOSHIHISA

Applicant: YANMAR CO LTD

EC: IPC: F02F1/00; B22C9/00; B22C9/10; (+12)

Publication info:

JP2003181622 (A) — 2003-07-02

Abstract of JP 2003181622 (A)
PROBLEM TO BE SOLVED: To provide a sand mold aluminum alloy casting in which a cylinder block for obtaining a cylinder liner made of a foamed metal and an aluminum alloy can be smoothly cast by aiming at a sand mold casting which is suitable for the aluminum alloy casting having a complicated structure and in which a blister is not generated by a heat treatment and to provide a method for casting the same. ; SOLUTION: The method for casting the sand mold aluminum alloy casting comprises the steps of holding a sleeve-like foamed metal 2 having open-cell vent holes at a supporting core K2 of a sand mold K, pressure reducing a central part K1 of the cylinder liner in the core by a pressure reducing unit 3, pouring molten aluminum alloy in the mold, positively impregnating the metal with the molten alloy, solidifying the impregnated metal, and thereby casting the cylinder block for obtaining the cylinder liner made of the foamed metal and the alloy. ; COPYRIGHT: (C)2003,JPO

27.

METHOD FOR CASTING ALUMINUM WITH CASTING METHALLIC MOLD

Inventor: NAKAO YASUHIRO ; SHOJI HIROTO (+2)

Applicant: HONDA MOTOR CO LTD

EC: IPC: B22D21/04; B22D27/18; B22D21/00; (+3)

Publication info: JP2003053513 (A) — 2003-02-26

Abstract of JP 2003053513 (A)
PROBLEM TO BE SOLVED: To provide a method for casting an aluminum with a casting metallic mold with which the productivity can be improved by shortening a cycle time in the casting process. SOLUTION: In the aluminum casting method, after filling nitrogen gas 80... and magnesium gas 81... into a cavity 27 in the closed casting metallic molds 22, the molten aluminum 39 is poured into the cavity 27. In the aluminum casting method, solid-state magnesium nitrides 82... are generated by reacting the nitrogen gas 80... and the magnesium gas 81... in the cavity 27 with the heat of the poured molten aluminum 39, and the pressure in the cavity 27 is reduced by generating the magnesium nitride 82..., and the oxidized film 39b produced on the surface 39a of the molten aluminum 39 is removed with the generated magnesium nitride 82....

28.

MOLD POWDER FOR CONTINUOUSLY CASTING ALUMINUM-CONTAINING STEEL

Inventor: OE KEIZO ; SHIMOKUCHI HARUYUKI Applicant: SANYO SPECIAL STEEL CO LTD EC: IPC: B22D11/108; B22D11/00; B22D11/16; (+11)

Publication info: JP2003053496 (A) — 2003-02-26

Abstract of JP 2003053496 (A)
PROBLEM TO BE SOLVED: To provide mold powder with which generation of slag bear is eliminated and surface defects on a cast slab are prevented by eliminating burning between a mold and a cast slab by securing the inflax of the mold powder into a part between the mold and molten steel and further the development of break-out is restrained and the limitation of the number of heats for continuous casting can be eliminated without limiting casting speed. SOLUTION: The mold powder for continuously casting an aluminum- containing steel containing >=0.5% Al contains, by mass, 40-60% SiO2 , 15-35% CaO and further, <=10% Al2 O3 , <=10% MgO, <=10% Na2 O, <=10% Li2 O, <=10% F and <=15% T. C and has properties of 0.25-0.88 CaO/SiO2 , 1100-1250 deg.C softening point and 10.0 poise (at 1300 deg.C) viscosity.

29.

METHOD FOR CASTING ALUMINUM WITH CASTING METALLIC MOLD

Inventor: NAKAO YASUHIRO ; SHOJI HIROTO (+5)

Applicant: HONDA MOTOR CO LTD EC: B22C3/00; B22D21/00B2; (+2) IPC: B22D21/04; B22C3/00; B22C9/06; (+19)

Publication info: JP2003048057 (A) — 2003-02-18

Abstract of JP 2003048057 (A)
PROBLEM TO BE SOLVED: To provide a method for casting an aluminum with a casting metallic mold with which generation of magnesium nitride is performed in a short time and the consumption of nitrogen gas can be reduced. SOLUTION: The method for casting the aluminum with the casting metallic mold, is composed of a process in which a parting layer 40 is formed by applying a releasing agent containing magnesium on the metallic mold surface 25 forming a cavity, a process in which the cavity is formed with this metallic mold surface 25, a process in which the magnesium nitride 42 is generated on the metallic mold surface 25 by introducing the nitrogen gas into this cavity and reacting this nitrogen gas with the magnesium, and a process in which the aluminum-made casting is cast in the cavity while reducing the surface 39a of molten aluminum 39 with the magnesium nitride 42 by supplying the molten aluminum 39 into the cavity generating this magnesium nitride 42.

30.

METHOD FOR CASTING ALUMINUM WITH CASTING METALLIC MOLD

Inventor: NAKAO YASUHIRO ; SHOJI HIROTO (+4) Applicant: HONDA MOTOR CO LTD EC: IPC: B22D21/04; B22C9/06; B22D27/18; (+6)

Publication info: JP2003048056 (A) — 2003-02-18

Abstract of JP 2003048056 (A)
PROBLEM TO BE SOLVED: To provide a method for casting an aluminum with a casting metallic mold with which generation of magnesium nitride is performed in a short time and the consumption of nitrogen gas can be reduced. SOLUTION: The method for casting the aluminum with the casting metallic mold is composed of a process in which inert gas is filled up into a cavity 25, a process in which the magnesium layer 58a is precipitated on the surface of the cavity 25 by introducing the gaseous magnesium into the cavity 25 filled with the inert gas, a process in which the surface of the cavity 25 is heated to a prescribed temperature by heating the casting metallic mold 22, a process in which the magnesium nitride 58b is generated on the surface of the magnesium layer 58a by introducing the nitrogen gas into the cavity 25, and a process in which the aluminum casting is cast while reducing the surface of molten aluminum 39 with the magnesium nitride 58b by supplying the molten aluminum into the cavity 25.

31.

METHOD FOR CASTING ALUMINUM WITH CASTING METALLIC MOLD

Inventor: NAKAO YASUHIRO ; SHOJI HIROTO (+4)

Applicant: HONDA MOTOR CO LTD

EC: IPC: B22D21/04; B22D27/18; B22D21/00; (+3)

Publication info: JP2003048054 (A) — 2003-02-18

32.

METHOD FOR CASTING ALUMINUM OR ALUMINUM ALLOY AND MOLD USED THEREFOR

Inventor: SUZUKI NOBUAKI Applicant: SUZUKI MOTOR CO EC: IPC: B22D18/04; B22D21/04; B22D18/04; (+3)

Publication info: JP2002178133 (A) — 2002-06-25

Abstract of JP 2002178133 (A)
PROBLEM TO BE SOLVED: To provide a method for casting aluminum or an aluminum alloy and a mold used for the casting method with which effect of a feeder is further improved and directional solidification can be achieved. SOLUTION: The casting method of aluminum or aluminum alloy including a step, in which molten aluminum alloy 9 is poured into a mold 17 having a bore insert 27, a step, in which the above molten alloy 9 flows into a narrow passage part B narrowed by sharply contracting the flowing passage for molten alloy 9 formed at the inside surface of the bore insert and the mold 17, a step, in which after flowing in the narrow passage part B, the molten alloy 9 is received and held into a cavity 63 between the mold 17 and the bore insert, and a step, in which the molten alloy 9 received and held in the cavity 63 is solidified, is formed by providing a recessed part 41 on the outer surface of the bore insert 49 positioned near the narrow passage part B and forming a hollow part 47 extended along the flow of the molten alloy 9 in the cavity 63 at the inner part of the bore insert 49.

33.

ALUMINUMCASTING MEMBER, MANUFACTURING METHOD THEREFOR, AND MANUFACTURING MOLD

Inventor: KIMURA YOSHIMASA Applicant: TOPY IND

EC: IPC: F16D65/10; B22C9/06; B22D19/00; (+12)

Publication info: JP2002126865 (A) — 2002-05-08

Abstract of JP 2002126865 (A)
PROBLEM TO BE SOLVED: To provide an aluminum casting member not using a composite material, light in weight, capable of conducting posttreatment, and provided with a load sliding part, a manufacturing method therefor, and a manufacturing mold. SOLUTION: The aluminum casting member 1 is provided with a load sliding part 2, and the load sliding part 2 is composed of an aluminum-impregnated ceramic mesh 1 impregnated with the aluminum into a formed ceramic mesh 3. Concerning the manufacturing method therefor and the manufacturing mold 6, the aluminum casting member composes a brake drum 1A or a brake rotor 1B, an aluminum coating 11 is left on the outer face of the ceramic mesh after machine work finishing, an aluminum layer 10 is provided between two ceramic meshes 3, and a cooling fin 12 is provided on the axial side away from the friction material sliding part.

34.

METHOD FOR DESIGNING ALUMINUM DC CASTING MOLD UTILIZING ELASTIC AND PLASTIC SOLIDIFIED STRESS ANALYSIS AND MOLD THEREOF

Inventor: ISHIKAWA NOBUHITO Applicant: FURUKAWA ELECTRIC CO LTD EC: IPC: B22D11/00; B22D11/04; B22D11/041; (+20)

Publication info: JP11057947 (A) — 1999-03-02

Abstract of JP 11057947 (A)
PROBLEM TO BE SOLVED: To enable the accurate prediction of an ingot shape with a DC casting and the repeatability of an 1/4 gutter by calculating cooling-solidifying temp. and an elastic- plastic stress of ingot finite element with the descent of a prescribed length in the ingot from the ingot shape at the initial stage and cooling-solidifying parameter and deciding a coordinate of the finite elements. SOLUTION: The ingot shape at the initial stage with the DC casting of aluminum is divided into the finite elements to obtain the coordinate of nodes. Successively, the descending length of the ingot is set and the cooling condition in this descending length is set. Based on this cooling condition and the cooling-solidifying parameter, a two-dimensional solidifying temp. calculation and a two-dimensional elastic-plastic calculation are executed.; By this method, the variation in the coordinate of each node is obtd. and the ingot shape is calculated. At this time, when the whole descending length does not reach the preset length, the recalculation is executed, and when this length reaches the preset length, after checking the shape precision, this shape is made to the predicted shape, based on the deviated The predicted ingot shape and a target ingot shape, the feedback of a mold shape is executed to obtain the optimum DC casting mold.

35.

COPPER ALLOY MOLD FOR CASTING ALUMINUM OR ALUMINUM ALLOY

Inventor: AOSHIMA SHOJU [JP] ; MURAMATSU NAOKUNI [JP]

Applicant: TECHNO COAT COMPANY LTD [JP] ; NGK INSULATORS LTD [JP] EC: B22C3/00; B22C9/06A; (+4) IPC: B22C3/00; B22C9/06; B22D17/22; (+10)

Publication info: US5799717 (A) — 1998-09-01

Abstract of US 5799717 (A)
A mold for casting aluminum or aluminum alloy made of a copper alloy having a thermal conductivity of not less than 0.20 cal/s.cm DEG C. The mold cavity surface is locally or entirely formed with a coated layer. The coated layer may be either (i) a cermet layer including of at least one element selected from the group consisting of Co, Cu, Cr and Ni, or (ii) a Co-, Ni-, Cr -or Mo-based hard alloy layer. The copper alloy mold exhibits distinguished thermal conductivity and resistance to melt damages.

36.

MOLD FOR CONTINUOUS CASTING OF ALUMINUM AND ITS ALLOYS

Inventor: KULIKOV ANATOLIJ F [SU] ; SHIPILOV VIKTOR S [SU] (+4) Applicant: AKTSIONERNOE OBSHCHESTVO OTKRY [SU] ; PREDPR GOLOVLINO EC: IPC: B22D11/07; B22D11/07; (IPC1-7): B22D11/07

Publication info: RU2089336 (C1) — 1997-09-10

Abstract not available for RU 2089336 (C1)

37.

LUBRICATING OIL FOR ALUMINUM CONTINUOUS CASTING MOLD AND ALUMINUM CONTINUOUS CASTING METHOD USING THE SAME

Inventor: MASE TOSHIAKI ; ITO HIDEO (+4)

Applicant: SUMITOMO LIGHT METAL IND

EC: IPC: B22D11/07; C10M101/02; C10M129/74; (+20)

Publication info: JP8027477 (A) — 1996-01-30

Abstract of JP 8027477 (A)
PURPOSE:To provide a lubricating oil excellent in mold lubricity, supplying property to mold and oil-water separability, comprising each specific high- viscosity mineral oil and oily agent at respective specified proportions. CONSTITUTION:This lubricating oil for aluminum continuous casting mold is obtained by blending (A) 60-90wt.% of a high-viscosity mineral oil having a dynamic viscosity at 40 deg.C of 300-2000cst with (B) 10-40wt.% of at least one kind of oily agent selected from among esters of polyols of respective formulas I, II and III, esters of polyacrylic acid of formula IV (20000-100000cst in the dynamic viscosity at 40 deg.C) and esters of polymethacrylic acid of formula V (20000-100000cst in the dynamic viscosity at 40 deg.C).; It is preferable that an aluminum (alloy) continuous casting be made by continuously feeding this lubricating oil onto the inner wall surface of a continuous casting mold.

38.

MOVING CASTING MOLD TYPE CONTINUOUS CASTING MACHINE FOR CASTING ALUMINUM OF CAN MATERIAL

Inventor: SHIO KIYOMI ; YASUDA KAZUMI

Applicant: NIPPON STEEL CORP

EC: IPC: B22D11/00; B22D11/06; B22D11/00; (+3)

Publication info: JP7290206 (A) — 1995-11-07

Abstract of JP 7290206 (A)
PURPOSE:To produce aluminum having an excellent drawing property by forming the contact parts of blocks constituting part of casting molds with molten aluminum of ceramics. CONSTITUTION:A casting space 6 of a specified length is formed by plural pairs of blocks 4, 4a facing and meshing each other, by which the moving casting molds 3 are formed. The molten aluminum is continuously poured by a pouring device into the moving casting molds 3 via a pouring trough and is cooled to form a thin aluminum billet. The billet is taken out. The blocks 4, 4a forming the moving casting molds 3 are bisected and the casting space 6 is formed of the ceramic block 4c of Zr2O3 The connecting part with a metallic strip is formed of the steel block 4s. The ceramic block 4c and the steel block 4s are coupled by a fitting structure. As a result, the cooling speed is lowered to a prescribed value or below and many Al6Mn crystals of >=5mum are formed in a solidified structure, by which the aluminum having the excellent drawing property is cast.

39.

STEEL FOR ALUMINUM CASTING MOLD

Inventor: KUBOTA KUNICHIKA Applicant: HITACHI METALS LTD EC: IPC: C22C38/00; B21J5/00; C22C38/24; (+6)

Publication info: JP7207414 (A) — 1995-08-08

Abstract of JP 7207414 (A)
PURPOSE:To produce a steel for aluminum casting which is used on a relatively low temp. side an has high hardness, high toughness and long fatigue life by producing the steel which has a specific component compsn. specified in respective contents of Si and Cr and has specific values of hardening and tempering hardness and impact value at ordinary temp. CONSTITUTION:The steel which contain, by weight %, 0.25 to 0.60% C, <=1.5% Si, <=1.5% Mn, 3.50 to 5.65% Cr, 0.2 to 4.0% one or two kinds of W and Mo based on 1/2W+Mo and 0.05 to 2.0% V, contains the Si and Cr satisfying a relation Si<(18.7/Cr)-3.3, and the balance Fe with inevitable impurities and has the hardening and tempering hardness of >=46HRC and the impact value at ordinary temp. of >=4.8kgf/mm<2> is prepd.; As a result, the steel for aluminum casting molds has the excellent toughness at a transition temp. or below and more particularly fatigue characteristic and can be used at a mold surface temp. of <=200 deg.C.

40.

LOWER MOLD FOR SEMI-CONTINUOUS CASTING APPARATUS FOR ALUMINUM

Inventor: MIYATE YUKIHIRO ; MATSUDA KIYOSHI (+1)

Applicant: SHOWA ALUMINUM CORP

EC: IPC: B22D11/00; B22D11/04; B22D11/049; (+8)

Publication info: JP5050186 (A) — 1993-03-02

Abstract of JP 5050186 (A)
PURPOSE:To prevent the development of crack at the initial stage of casting by arranging a projection upward at center part of bottom face in a recessed part formed at upper surface of a lower mold. CONSTITUTION:At the center part of bottom face in the recessed part 15 formed at the upper surface of lower mold 1, the tapered projection 2 upward is integrally formed. In this way at the initial stage of casting, solidified direction is directed to almost vertical upward and the development of crack is prevented.

41.

COPPER ALLOY METALLIC MOLD FOR CASTING ALUMINUM ALLOY AND MANUFACTURE THEREOF

Inventor: KOBAYASHI MASAO ; IWAMURA TAKURO

Applicant: MITSUBISHI MATERIALS CORP

EC: IPC: B22C9/06; C22C1/10; C22C9/00; (+9)

Publication info: JP4135041 (A) — 1992-05-08

Abstract of JP 4135041 (A)
PURPOSE:To manufacture a copper alloy metallic mold having high content of aluminum oxide and excellent wear resistance by dispersing shell-state hard phase essentially composed of fine aluminum oxide aggregated as shell-state in a base of copper or copper alloy. CONSTITUTION:The Cu alloy is melted to make molten metal, and at the time of casting or just before casting this molten metal into an ingot mold, Cu alloy powder of which the most upper surface is composed of Cu or Cu alloy and the hard phase with the fine aluminum oxide aggregated in the shell-state exists in the inside just below the most upper surface is added into this molten metal. Then, the ingot having structure with the shell-state hard phase dispersed in the base can be produced and this ingot is subjected to plastic working, and by finishing it to the prescribed shape, the copper alloy metallic mold for casting which can produce an aluminum alloy casting with excellent mechanical characteristic, does not generate thermal fatigue crack and hardly comes into reaction with molten aluminum can be obtd.

42.

MOLD RELEASE AGENT ON METALLIC MOLD FOR CASTING ALUMINUM ALLOY

Inventor: TAKAGI HIROMI ; TAKEHISA FUMITAKA (+2)

Applicant: NIPPON DENSO CO ; NIPPON KOKUEN KOGYO KK EC: IPC: B22C3/00; B22C3/00; (IPC1-7): B22C3/00

Publication info: JP3174942 (A) — 1991-07-30

Abstract of JP 3174942 (A)
PURPOSE:To prevent mis-run of molten metal and burning even at thick part by using mold release agent containing mica as essential component and binder having polymer hydrocarbon and high temp. sticking component. CONSTITUTION:The mold release agent applied on the metallic mold at the time of casting Al alloy, is made to water dispersing liquid condition of dispersing the mica as the essential component, the binder containing the polymer hydrocarbon and the high temp. sticking component in the water. The mica is made to powder state and the average grain diameter is suitable to be about 20mum. The polymer hydrocarbon has function of adding water dispersiveness to the mica and is shown with CnH2n+2, etc., and the content in the mold release agent is desirable to be in the range of 0.5-10wt%.; As the binder, petroleum series wax, inorganic series binder, etc., is used and the content is desirable to be in the range of 1-6%. This mold release agent has excellent releasing performance to the mold.

43.

MOLD FOR ALUMINUM ALLOY CASTING

Inventor: KITASHIMA NORIMITSU ; ISHIGURO JIYUICHI (+2)

Applicant: EBARA MFG EC: IPC: B22C1/00; B22C9/02; B22C1/00; (+3)

Publication info : JP52092822 (A) — 1977-08-04

Abstract not available for JP 52092822 (A)

44.

CASTING METHOD FOR ALUMINUM OR ALUMINUM ALLOYS AND A MOLD THEREFOR

Inventor: KOMATSU NOBORU ; ARAI TOHRU (+1)

Applicant: TOYODA CHUO KENKYUSHO KK EC: B22C3/00; B22D21/00B2 IPC: B22D17/22; B22C3/00; B22C9/06; (+7)

Publication info: CA1001823 (A1) — 1976-12-21

Abstract not available for CA 1001823 (A1)

45.

PERMANENT MOLD FOR CASTING ALUMINUM STUD CHAIN LINKS

Inventor: NELSON JOHN S Applicant:

EC: B22D25/02C IPC: B22D25/02; B22D25/00

Publication info: US3176357 (A) — 1965-04-06

46.

MOLD AND METHOD OF CASTING ALUMINUM

Inventor: CAMPBELL DONALD J Applicant: EC: B22D19/00A2 IPC: B22D19/00; B22D19/00

Publication info : US1717916 (A) — 1929-06-18

Abstract not available for US 1717916 (A)

47.

ALUMINUM AND ALUMINUM ALLOY CASTING MOLD

Inventor: SHIMADA JIYUNJI ; YAMADA AKIHISA (+1)

Applicant: AISIN SEIKI EC: IPC: B22C9/06; B22C9/06; (IPC1-7): B22C9/06

Publication info: JP1099743 (A) — 1989-04-18

Abstract of JP 1099743 (A)
PURPOSE:To make it possible to efficiently and surely manufacture an article by way of trial and to increase the efficiency of production by casting Al or a low m.p. Al alloy with casting molds made of a graphite sintered material. CONSTITUTION:A cavity 7 is carved in a graphite sintered material 6 according to the drawing of a metal mold to manufacture casting molds 8, 9. A molten Al alloy is poured into the cavity between the molds 8, 9. At this time, it is not necessary to apply a mold releasing agent. After the molten Al alloy is cooled, the resulting article is taken out of the molds 8, 9. The article can be accurately manufactured by way of trial in a short time.

48.

CASTING ALUMINUM ALLOYS WITH A MOLD HEADER COMPRISING DELAMINATED VERMICULITE

Inventor: LIBBY STEPHEN C [US] ; GRADDY JR G EDWARD [US]

Applicant: ALUMINUM CO OF AMERICA [US] EC: B22D11/04G; B22D11/059 IPC: B22D11/04; B22D11/059; B22D11/04; (+2)

Publication info: US4773470 (A) — 1988-09-27

Abstract of US 4773470 (A)
A process for continuous direct chill casting of aluminum alloys, particularly aluminum-lithium alloys. The molten alloy is cast in a mold containing a header comprising delaminated vermiculite or spodumene or lithium aluminate. The header preferably comprises delaminated vermiculite blended with wollastonite, lime, silica, and wood fiber. The mixture is slurried with water, molded into shape, compressed to expel water, steam cured, and dried. The header forms ingots of good quality and has excellent resistance to attack by molten aluminum-lithium alloys.

49.

METHOD FOR CONTROLLING MOLTEN METAL LEVEL IN MOLD DURING CASTING OF ALUMINUM AND ALUMINUM ALLOY INGOT

Inventor: SHIGEMITSU SHINJI ; HIDENO AKIRA (+1) Applicant: FURUKAWA ALUMINIUM EC: IPC: B22D27/04; B22D11/00; B22D11/04; (+11)

Publication info: JP62104657 (A) — 1987-05-1

Abstract of JP 62104657 (A)
PURPOSE:To improve the quality and yield of ingots by raising or lowering molds in compliance with the descending speed of the bottom blocks of the molds and the supply rate of a molten metal. CONSTITUTION:The plural molds 2 are provided to the inside enclosed of a machine frame 1 and are supported by a mold header 3. Lifting means 4 consisting of screw jacks are disposed in symmetrical positions to the frame 1 having a box-shaped section to support the header 3 by lifting shafts 41. The mods 2 are made simultaneously movable up and down in a horizontal state by the header 3 when the shafts 41 are moved up and down by such mechanism. The molds 2 are moved up and down in compliance with the descending speed of the bottom blocks and the supply rate of the molten metal to maintain the specified molten metal level during casting of an Al alloy, etc. The thickness of the primarily solidified structure layer is thus suppressed and the quality and yield of the ingots are improved.