[특허]Process and apparatus for metal casting

Process and apparatus for metal casting 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B22D-027/13
출원번호	US-0876706 (1992-04-29)
우선권정보	GB-0012742 (1987-05-30); JP-0135635 (1987-05-30)
발명자 / 주소	Paine Brian (Bradford GB3)
출원인 / 주소	AE PLC (Rugby GB2 03)
인용정보	피인용 횟수 : 36 인용 특허 : 0

초록 ▼

Cast components having reduced porosity levels are produced by pouring a molten metal into a mould which is in a first chamber, and withdrawing the filled mould into a second chamber. The second chamber is then isolated from the first chamber with regard to pressure, and the second chamber is then pressurized with a fluid up to a maximum pressure of 7 MPa for at least part of the time required for solidification of the metal in the mould. The pressure is preferably applied within forty seconds from the finish of pouring of the molten metal, and more preferably within twenty seconds. The still molten state of the metal permits the use of a relatively low pressure to reduce the porosity levels.

대표청구항 ▼

Apparatus for the production of cast metal components, the apparatus comprising a mould, a casting chamber, metal melting and metal pouring means, a mould chamber adjacent said casting chamber and connected thereto by valve means of sufficient size to allow said mould to pass therethrough, vacuum pump means for producing a reduced pressure in at least said casting chamber, mould heating means, mould moving means to transport said mould between said mould chamber and said casting chamber, and pressurising means connected to said mould chamber for pressurising said mould chamber with a fluid, to a pressure sufficient to achieve at least substantial reduction in shrinkage porosity void formation during solidification of molten metal in the mould chamber wherein said valve means, said mould moving means and said pressurising means are constructed and arranged such that a mould with molten metal therein can be moved from said casting chamber to said mould chamber, said valve means closed and said mould chamber pressurized, all within a time such that said metal is still molten. A process for the production of castings, the process comprising the steps of at least partially melting a metal charge, pouring said metal into a mould which is in a first chamber, withdrawing the filled mould completely into a second chamber while the metal in the mould is still in a molten state, isolating said second chamber from said first chamber with regard to pressure and then pressurising said second chamber with a fluid up to a maximum pressure of 7 MPa such as to preclude shrinkage porosity void formation for at least part of the time required for solidification of the metal in the mould.

이 특허를 인용한 특허 (36)

Donahue, Raymond J.; Cleary, Terrance M., Apparatus and improved method for lost foam casting of metal articles using external pressure.
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Cretegny, Laurent; Bewlay, Bernard Patrick, Apparatus for casting filaments.
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Ahn Byung-sun,KRX ; Petrovich Lavrishev Vadim,RUX ; Nikolaevich Dunaev Boris,RUX, Apparatus for injecting working liquid into micro-injecting device and method for injecting the working liquid.
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White, Mark, Article with grouped grain patterns.
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Balliel, Martin, Casting furnace with centrally located heating element for producing directionally solidified castings.
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Naik, Rajeev, Casting method, apparatus, and product.
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Cretegny, Laurent; Bewlay, Bernard Patrick, Casting methods and apparatus.
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Cargill, Danny L.; Oles, Mark W.; Poole, Robert A., Countergravity casting method and apparatus.
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Mark L. Soderstrom ; Dale A. Grumm ; Lester G. Striker, Investment casting using melt reservoir loop.
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Soderstrom Mark L. ; Grumm Dale A. ; Striker Lester G., Investment casting using pour cup reservoir with inverted melt feed gate.
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Grumm Dale A. ; Donaldson Bradley S. ; Soderstrom Mark L. ; Thompson Dennis, Investment casting using pressure cap sealable on gas permeable investment mold.
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Schmiedeknecht Dean L. (Whitehall MI) Straszheim Mark J. (North Muskegon MI) Thompson Dennis J. (Whitehall MI) Rauguth Brad L. (Whiteland IN), Investment casting with improved filling.
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Soderstrom, Mark L.; Kilinski, Bart M.; Brinegar, John R.; Murphy, Brad J., Investment casting with improved melt filling.
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Booth Lloyd M. ; Kring David L. ; Callaway Martin A., Melt delivery system.
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Cornie James A. (Cambridge MA), Method and apparatus for casting.
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Cretegny, Laurent; Bewlay, Bernard Patrick, Method and apparatus for casting filaments.
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Donahue, Raymond J.; Cleary, Terrance M.; Stroom, Parker A., Method and apparatus for casting of metal articles using external pressure.
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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.; Kush, Matthew; Schlienger, Max Eric; Baldwin, Michael, 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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Frasier,Donald J.; Schlienger,M. Eric, 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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Reiter Christian,JPX, Method and casting device for precision casting.
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Cornie James A., Method for high throughput pressure casting.
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Park, Junyoung; Parolini, Jason Robert; Ucok, Ibrahim, Method for induction stirred, ultrasonically modified investment castings.
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Graham,Lawrence D.; Hill,Scott T., Method of casting.
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Cornie James A., Method of high throughput pressure casting.
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James A. Cornie ; Stephen S. Cornie ; Ralph P. Mason ; Mark A. Ryals, Methods and apparatus for high throughput pressure infiltration casting.
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Cornie James A. ; Cornie Stephen S. ; Mason Ralph P. ; Ryals Mark A., Methods of high throughput pressure infiltration casting.
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Spicer Robert A. ; Price Allen R., Mold heating vacuum casting furnace.
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Bradley Earl T., Movable pouring basin.
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Zhao, Huifeng; Zu, Chengkui; Han, Bin; Liu, Yonghua; Chen, Jiang; Wang, Yanhang; Jin, Yangli; Zhao, Hua, Vacuum melting furnace for infrared glass and melting system and method thereof.
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Vogt, Russell G.; Hanslits, Christopher R., Vacuum or air casting using induction hot topping.
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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

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연합인증

Process and apparatus for metal casting 원문보기

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Process and apparatus for metal casting 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (36)

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