YU47814B - VACUUM MOLDING PROCEDURE AND APPARATUS WITH THANCOID MULTI-LAYER MOLDING SHAFT BASED ON GRAIN MATERIAL - Google Patents

VACUUM MOLDING PROCEDURE AND APPARATUS WITH THANCOID MULTI-LAYER MOLDING SHAFT BASED ON GRAIN MATERIAL

Info

Publication number
YU47814B
YU47814B YU149191A YU149191A YU47814B YU 47814 B YU47814 B YU 47814B YU 149191 A YU149191 A YU 149191A YU 149191 A YU149191 A YU 149191A YU 47814 B YU47814 B YU 47814B
Authority
YU
Yugoslavia
Prior art keywords
molten metal
mold
shell
cavity
mold cavity
Prior art date
Application number
YU149191A
Other languages
Serbo-Croatian (sh)
Serbian (sr)
Other versions
YU149191A (en
Inventor
G. Chandley
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

Postupak za vakuumsko livenje rastopljenog metala koji obuhvata sledeće uzastopno izvedene stupnjeve: obrazovanje potrošnog modela predmeta koji treba da se lije, pri čemu taj model obuhvata topljiv materijal koji se širi pri zagrevanju, oblaganje modela zrnastim vatrostalnim materijalom za kalup u više slojeva, tako da obrazuje jednu vatros-talnu školjku, zagrevanje obloženog modela da bi se uklonio model iz školjke da bi u njoj ostala šupljina kalupa, stavljanje jednog vatrostalnog zrnastog oslonog medijuma oko tanke školjke, pri čemu je šupljina kalupa povezana sa ulaznim otvorom za rastopljen metal, postavljenim izvan oslonog medijuma, evakuisanje šupljine kalupa, livenje rastopljenog metala u evakuisanu šupljinu kalupa, pri čemu je ulaz rastopljenog metala povezan sa izvorom rastopljenog metala, a školjka je oslonjena u oslonom medijumu, naznačen time, što se rastopljeni metal lije pod vakuumom uzlazno na gore u evakuisanu šupljinu kalupa, pri čemu je ulazni otvor za rastopljeni metal povezan sa ispod njega postavljenim izvorom rastopljenog metala, što je u stupnju obrazovanja školjke nanošenje slojeva materijala za kaluup regulisano tako da se obrazuje tanka vatrostalna školjka debljine zida do oko 3,05 mm, i što se dalje deluje takvim pritiskom na osloni medijum istovremeno sa evakuacijom šupljine kalupa, kako bi se osloni medijum sabio oko tanke školjke da bi podržao školjku protiv naprezanja kod livenja. Uređaj za vakuumsko uzlazno livenje rastopljenog metala, koji obuhvata: vatrostalan zrnast osloni medium (60) stavljen u kućište (70), vatrostalnu obloženu školjku (30) koja ima šupljinu (36) kalupa koju obrazuje jedan zid kalupa postavljen u osloni medijum (60), sredstva (78, 80, 82) za evakuisanje šupljine (36) kalupa, ulazni otvor (90) za rastopljen metal postavljen izvan oslonog medijuma za povezivanje šupljine (36) kalupa i izvora (102) rastopljenog metala kada je šupljina (36) kalupa evakuisana tako da se potiskuje ras-topljeni metal u evakuisanu šupljinu (36) kalupa, naznačen ti me, što školjka (30) ima debljinu zida do oko 3,05 mm, što je pomenuti ulazni otvor za rastopljeni metal donji ulazni otvor (90) za vezu šupljine (36) kalupa i ispod njega postavljenog izvora (102) rastopljenog metala i što na osloni medijum (60) pri evakuisanju šupljine (36) kalupa naleže naprava. Prijava sadrži još 17 zavisnih zahteva.A process for the vacuum casting of molten metal, comprising the following successive steps: forming a consumable model of an article to be poured, the model comprising a soluble material that expands upon heating, coating the model with a granular refractory mold for multiple layers to form one fire shell, heating the coated model to remove the model from the shell to keep the mold cavity therein, placing one refractory granular support medium around the thin shell, wherein the mold cavity is connected to the molten metal inlet, positioned outside the shell the evacuation of the mold cavity, casting the molten metal into the evacuated mold cavity, wherein the molten metal inlet is connected to the molten metal source and the shell is supported in the support medium, characterized in that the molten metal is poured upward into the evacuated cavity in the evacuated cavity. mold, wherein the inlet ot a molten metal conduit connected to a molten metal source below it, which in the degree of shell formation, the application of layers of mold material to the mold is regulated to form a thin refractory shell with a wall thickness of up to about 3.05 mm, and is further acted upon by such pressure on the supports the medium at the same time as the evacuation of the mold cavity, in order to compress the support medium around the thin shell to support the shell against stress during casting. Device for vacuum upstream molten metal casting, comprising: refractory granular support medium (60) housed (70), refractory lined shell (30) having a mold cavity (36) formed by a mold wall mounted in a support medium (60) , means (78, 80, 82) for evacuating the mold cavity (36), molten metal inlet opening (90) positioned outside the support medium to connect the mold cavity (36) and molten metal source (102) when the mold cavity (36) evacuated by pushing the molten metal into the evacuated cavity (36) of the mold, named me, the shell (30) having a wall thickness of up to about 3.05 mm, which is said inlet for the molten metal lower inlet (90) for connection of the cavity (36) of the mold and the molten metal source (102) placed below it, and a device is supported on the supporting medium (60) when evacuating the cavity (36) of the mold. The application contains 17 more dependent requests.

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 YU149191A (en) 1994-06-24
YU47814B true 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
JPH0818122B2 (en) * 1993-02-02 1996-02-28 第一鋳造株式会社 Vacuum shell mold casting method
EP0640420B1 (en) * 1993-03-12 2000-06-07 Hitachi Metals, Ltd. Vacuum suction casting apparatus
GB9724568D0 (en) * 1997-11-19 1998-01-21 Castings Dev Centre The Investment casting
DE112006000461T5 (en) 2005-02-22 2008-03-13 Milwaukee School Of Engineering, Milwaukee 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
US9486852B2 (en) 2013-03-14 2016-11-08 Hitchiner Manufacturing Co., Inc. Radial pattern assembly
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
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
CH475808A (en) * 1964-07-09 1969-07-31 Dynamit Nobel Ag Process for the production of precision casting molds
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
CN1059485A (en) 1992-03-18
DE69114954D1 (en) 1996-01-11
EP0474078B1 (en) 1995-11-29
JPH07110404B2 (en) 1995-11-29
BR9103830A (en) 1992-05-19
CA2049228C (en) 1996-10-15
RU2039629C1 (en) 1995-07-20
JPH04270024A (en) 1992-09-25
AU8249591A (en) 1992-03-12
CN1047547C (en) 1999-12-22
AU635858B2 (en) 1993-04-01
YU149191A (en) 1994-06-24
DE69114954T2 (en) 1996-07-18
EP0474078A1 (en) 1992-03-11
MX173895B (en) 1994-04-07
CA2049228A1 (en) 1992-03-07

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