[특허]Method and apparatus for casting a metal article

Method and apparatus for casting a metal article 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B22D-027/04 B22C-009/20
출원번호	US-0478251 (1990-02-09)
발명자 / 주소	Prasad T. V. Rama (Mentor OH)
출원인 / 주소	PCC Airfoils, Inc. (Cleveland OH 02)
인용정보	피인용 횟수 : 19 인용 특허 : 0

초록 ▼

A long thin metal article having a thick portion is cast with a stress free interconnection between the thick and thin portions of the article. A heat transfer wall is provided around at least a portion of a mold in which the article is cast. To preheat the mold, heat is radiated from an inner side surface of a furnace wall to an outer side surface of the heat transfer wall. Heat is radiated from an inner side surface of the wall to the mold. Molten metal is conducted into the long thin portion of the article mold at a location other than along the length of the long thin portion of the article mold. During solidification of the molten metal, heat is radiated from the thick portion of the article mold to the inner side surface of the heat transfer wall. As the mold structure is withdrawn from the furnace chamber during solidification of the molten metal in the article mold cavity, heat is radiated from the outer side surface of the heat transfer wall to locations outside of the furnace. The presence of the heat transfer wall promotes a stress free solidification of the molten metal in the portion of the article where the thick and thin portions are interconnected.

대표청구항 ▼

An apparatus for use in casting a metal article having interconnected thick and thin portions, said apparatus comprising furnace means for transmitting heat to a mold structure in which the metal article is to be cast, movable chill plate means for receiving heat during casting and for supporting the mold structure in said furnace means while molten metal is conducted into the mold structure, means for moving said chill plate means and mold structure relative to said furnace means between a raised position in which the mold structure is disposed in said furnace means and a lowered position in which the mold structure is at least partially withdrawn from said furnace means, and wall means for promoting stress free solidification of the molten metal in the portion of the metal article where the thick and thin portions are interconnected, said wall means being movable with said chill plate means and being spaced apart from and extending around the outside of at least a portion of the mold structure with open space between said wall means and the mold structure to retard the transfer of heat from the portion of the mold structure where the molten metal is solidified to form the interconnection between the thick and thin portions of the metal article during movement of the mold structure from the raised position to the lowered position, said wall means having an inner side surface area from which heat is radiated to the mold structure through the open space between said wall means and the mold structure when the mold structure is in the raised position and to which heat is radiated from the mold structure through the open space between said wall means and the mold structure during movement of said chill plate means and mold structure from the raised position to the lowered position.

이 특허를 인용한 특허 (19)

Kuang-O Yu ; Alex Simkovich, Bottom pouring fully dense long ingots.
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Naik, Rajeev, Casting method, apparatus, and product.
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Grunstra,Robert E.; Corrigan,John, Ceramic casting core and method.
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Grunstra,Robert E.; Corrigan,John, Ceramic casting core and method.
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Grunstra,Robert E.; Corrigan,John, Ceramic casting core and method.
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Turkington,Michael K.; Norton,Delwyn E.; Bullied,Steven J., Investment casting.
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Mark L. Soderstrom ; John Brinegar, Investment casting with exothermic material.
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Frasier, Donald J.; Brady, Guy Allen; Kush, Matthew T.; Vessely, Patrick A., Method and apparatus for production of a cast component.
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Frasier, Donald J.; Schlienger, M. Eric; Brady, Guy Allen; Kush, Matthew T.; Vessely, Patrick A., Method and apparatus for production of a cast component.
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Frasier, Donald J.; Schlienger, M. Eric; Brady, Guy Allen; Kush, Matthew T.; Vessely, Patrick A., Method and apparatus for production of a cast component.
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Frasier, Donald J.; Schlienger, M. Eric; Kush, Matthew T., Method and apparatus for production of a cast component.
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Frasier, Donald J.; Schlienger, M. Eric; Kush, Matthew T., Method and apparatus for production of a cast component.
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Frasier, Donald J.; Schlienger, M. Eric; Vessely, Patrick A., Method and apparatus for production of a cast component.
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Woodward, John M.; Miller, Tom; Mitchell, Candy, Method of casting a metal article having a thinwall.
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Fargeas, Serge; Coyez, Dominique, Shell mould having a heat shield.
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Chiang Feng, Spool shields for producing variable thermal gradients in an investment casting withdrawal furnace.
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Schlienger, Max Eric; Withey, Paul Anthony, System, method, and apparatus for directional divergence between part motion and crystallization.
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Bischoff-Beiermann Burkhard,DEX ; Esser Winfried,DEX, Turbine blade and method of producing a turbine blade.
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Smith, Blair A.; Nardi, Aaron T.; Rankin, Kevin M.; Clavette, Patrick Louis, Wear resistant device and process therefor.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Method and apparatus for casting a metal article 원문보기

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Method and apparatus for casting a metal article 원문보기

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이 특허를 인용한 특허 (19)

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