YU149191A - VACUUM CASTING USING A THIN-WALLED MULTILAYER SHELL OF MOLD BASED ON GRAIN MATERIAL - Google Patents

VACUUM CASTING USING A THIN-WALLED MULTILAYER SHELL OF MOLD BASED ON GRAIN MATERIAL

Info

Publication number
YU149191A
YU149191A YU149191A YU149191A YU149191A YU 149191 A YU149191 A YU 149191A YU 149191 A YU149191 A YU 149191A YU 149191 A YU149191 A YU 149191A YU 149191 A YU149191 A YU 149191A
Authority
YU
Yugoslavia
Prior art keywords
shell
thin
model
vacuum
wall
Prior art date
Application number
YU149191A
Other languages
Serbo-Croatian (sh)
Serbian (sr)
Other versions
YU47814B (en
Inventor
D.G. Chand Ley
Original Assignee
Hitchiner Manufacturing Co. Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitchiner Manufacturing Co. Inc. filed Critical Hitchiner Manufacturing Co. Inc.
Publication of YU149191A publication Critical patent/YU149191A/en
Publication of YU47814B publication Critical patent/YU47814B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Devices For Molds (AREA)
  • Dental Prosthetics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

VAKUMSKO LIVENJE POMOĆU TANKOZIDNE VIŠESLOJNE ŠKOLJKE KALUPA OSLONJENE NA ZRNASTI MATERIJAL, potrošni model predmeta koji treba da se lije sadrži topljiv materijal koji se širi pri zagrevanju (na primer model od voska). Model se oblaže zrnastim materijalom za kalup da bi se obrazovala tanka, višeslojna školjka koja ima debljinu zida koja ne prelazi oko 3 mm. Mala debljina zida školjke neočekivano smanjuje oštećenja i deformacije školjke kod uklanjanja modela iz nje u procesu obrade parnim autoklavom. Posle pečenja, tanka, za gas propustljiva, školjka se okružuje vatrostalnim zrnastim oslonim medijumom u jednom vakuumskom kućištu. Vakuumsko kućište se potom evakuiše da bi se evakuisala šupljina kalupa definisana tankom školjkom, a istovremeno se deluje pritiskom na osloni medijum oko tanke školjke, da bi se školjka oslonila protiv naprezanja pri livenju kada se rastopljen metal vakuumski uzlazno lije u evakuisanu šupljinu kalupa.VACUUM CASTING USING A THIN-WALL MULTI-LAYER SHELL MOLD BASED ON GRAIN MATERIAL, a consumable model of the object to be cast contains a soluble material that expands when heated (for example a wax model). The model is coated with granular molding material to form a thin, multi-layered shell having a wall thickness not exceeding about 3 mm. The small thickness of the shell wall unexpectedly reduces the damage and deformation of the shell when removing the model from it in the process of processing with a steam autoclave. After baking, a thin, gas-permeable shell is surrounded by a refractory granular support medium in a vacuum housing. The vacuum housing is then evacuated to evacuate the mold cavity defined by the thin shell, and at the same time pressure is applied to the support medium around the thin shell, to support the shell against casting stress when the molten metal is vacuum ascended into the evacuated mold cavity.

YU149191A 1990-09-06 1991-09-05 VACUUM MOLDING PROCEDURE AND APPARATUS WITH THANCOID MULTI-LAYER MOLDING SHAFT BASED ON GRAIN MATERIAL YU47814B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57931990A 1990-09-06 1990-09-06

Publications (2)

Publication Number Publication Date
YU149191A true YU149191A (en) 1994-06-24
YU47814B YU47814B (en) 1996-01-09

Family

ID=24316424

Family Applications (1)

Application Number Title Priority Date Filing Date
YU149191A YU47814B (en) 1990-09-06 1991-09-05 VACUUM MOLDING PROCEDURE AND APPARATUS WITH THANCOID MULTI-LAYER MOLDING SHAFT BASED ON GRAIN MATERIAL

Country Status (10)

Country Link
EP (1) EP0474078B1 (en)
JP (1) JPH07110404B2 (en)
CN (1) CN1047547C (en)
AU (1) AU635858B2 (en)
BR (1) BR9103830A (en)
CA (1) CA2049228C (en)
DE (1) DE69114954T2 (en)
MX (1) MX173895B (en)
RU (1) RU2039629C1 (en)
YU (1) YU47814B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303762A (en) * 1992-07-17 1994-04-19 Hitchiner Manufacturing Co., Inc. Countergravity casting apparatus and method
US5509458A (en) * 1993-01-19 1996-04-23 Hitachi Metals, Ltd. Vacuum casting apparatus and method using the same
JPH0818122B2 (en) * 1993-02-02 1996-02-28 第一鋳造株式会社 Vacuum shell mold casting method
GB9724568D0 (en) * 1997-11-19 1998-01-21 Castings Dev Centre The Investment casting
US8312913B2 (en) 2005-02-22 2012-11-20 Milwaukee School Of Engineering Casting process
CN101386066B (en) * 2008-10-27 2010-06-09 秦中林 Method for casting the iron and steel casting on extrusion machine
CN101850401A (en) * 2010-05-31 2010-10-06 上虞新达精密铸造有限公司 Fired mold and precision casting process utilizing same
CN102806314A (en) * 2012-09-03 2012-12-05 贵州安吉航空精密铸造有限责任公司 Casting method for aluminum alloy thin-wall fine-hole casting
US9498819B2 (en) * 2013-03-14 2016-11-22 Hitchiner Manufacturing Co., Inc. Refractory mold and method of making
US9481029B2 (en) 2013-03-14 2016-11-01 Hitchiner Manufacturing Co., Inc. Method of making a radial pattern assembly
US9486852B2 (en) 2013-03-14 2016-11-08 Hitchiner Manufacturing Co., Inc. Radial pattern assembly
US8931544B2 (en) * 2013-03-15 2015-01-13 Metal Casting Technology, Inc. Refractory mold
KR101367200B1 (en) * 2013-05-08 2014-02-26 지정욱 Process for duplex casting and process for duplex casting apparatus thereof
CN104399891A (en) * 2014-11-27 2015-03-11 温州兰理工科技园有限公司 Casting method combining investment precise shell-making process with vacuum suction molding technology
CN104972066A (en) * 2015-06-15 2015-10-14 江苏万恒铸业有限公司 Thin-shell sand culturing casting simple technology
CN106513635B (en) * 2016-12-16 2019-02-05 上海华培动力科技股份有限公司 Double-layer hollow cylinder fusible pattern formwork structure for high-temperature alloy process for suction casting
CN109719277A (en) * 2017-10-30 2019-05-07 科华控股股份有限公司 The anti-gravity feeding shell structure of heat resisting steel volute process for suction casting
CN109465399B (en) * 2018-12-26 2023-11-21 广东富华铸锻有限公司 Gating system with speed reducer shell sand core structure
JP6915206B2 (en) * 2019-08-26 2021-08-04 呉政寛 Molten forging method for thin-walled shell molds
CN114309474A (en) * 2022-03-14 2022-04-12 成都航宇超合金技术有限公司 Investment casting process of small and medium-sized single crystal turbine blades

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1119223A (en) * 1964-07-09 1968-07-10 Dynamit Nobel Ag Process for the production of precision casting moulds
US3900064A (en) * 1972-12-04 1975-08-19 Hitchiner Manufacturing Co Metal casting
IT1121553B (en) * 1979-06-01 1986-04-02 Cattaneo Leopoldo ELASTIC BANDS AND / OR SCRAPER FOR THERMAL ENGINES AND / OR FOR SEALS OF ANY KIND, WITH PERIPHERAL RIGIDITY AND DEFORMATION IN HOT OPERATION CONTROLLED THROUGH CARVINGS, HOLES, LIGHTENINGS AND CRACKS PRACTICED ON THE SURFACES OF THE LEVEL OF THE LEVEL OF THE FLEE LEAD OF THE PASTA LEAD. FOR THEIR PRODUCTION
US4340108A (en) * 1979-09-12 1982-07-20 Hitchiner Manufacturing Co., Inc. Method of casting metal in sand mold using reduced pressure
US4589466A (en) * 1984-02-27 1986-05-20 Hitchiner Manufacturing Co., Inc. Metal casting
US4791977A (en) * 1987-05-07 1988-12-20 Metal Casting Technology, Inc. Countergravity metal casting apparatus and process
IN170880B (en) * 1987-05-07 1992-06-06 Metal Casting Tech

Also Published As

Publication number Publication date
MX173895B (en) 1994-04-07
JPH04270024A (en) 1992-09-25
EP0474078A1 (en) 1992-03-11
CA2049228A1 (en) 1992-03-07
EP0474078B1 (en) 1995-11-29
AU635858B2 (en) 1993-04-01
YU47814B (en) 1996-01-09
RU2039629C1 (en) 1995-07-20
CN1047547C (en) 1999-12-22
AU8249591A (en) 1992-03-12
DE69114954D1 (en) 1996-01-11
BR9103830A (en) 1992-05-19
CN1059485A (en) 1992-03-18
CA2049228C (en) 1996-10-15
DE69114954T2 (en) 1996-07-18
JPH07110404B2 (en) 1995-11-29

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