[특허]Extrusion die and method for making same

[미국특허] Extrusion die and method for making same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29F-003/04
출원번호	US-0889358 (1978-03-23)
발명자 / 주소	Reed James R. (Flint MI)
출원인 / 주소	General Motors Corporation (Detroit MI 02)
인용정보	피인용 횟수 : 17 인용 특허 : 2

초록 ▼

A method is provided for forming an extrusion die of the type used to form a ceramic monolith having thin walls defining a multiplicity of parallel tubular passageways with at least about 100 passageways per square inch, the die having a feed face and a discharge face, the feed face having a plurality of feed holes extending partially through said die and interconnecting with a network of grid slots in the discharge portion of said die formed by a plurality of grid pins which define the slot width and the wall thickness, shape and size of said passageways. The method involves the steps of forming the width of the slots larger than the desired wall thickness of the passageways, and metal plating the slot defining surfaces of the grid pins to obtain the slot width corresponding to the desired wall thickness. Plating is accomplished by the electroless plating technique using a metal selected from the group consisting of nickel, chromium, cobalt and cobalt-nickel. The resulting die has a substantially uniform coating of wear resistant metal which is strippable for replating and continued die use.

대표청구항 ▼

In a method for forming an extrusion die of the type used to form a ceramic monolith having thin walls defining a multiplicity of parallel tubular passageways with at least about 100 passageways per square inch, said die having a feed face and a discharge face, said feed face having a plurality of feed holes extending partially through said die and interconnecting with a network of grid slots in the discharge portion of said die formed by a plurality of grid pins which define the said slot width and the wall thickness, shape and size of said passageways, the invention comprising the steps of forming the width of said slots larger than the desired wall thickness of said monolith passageways, and metal plating the slot defining surfaces of said grid pins to obtain the slot width corresponding to said desired wall thickness, said plating being accomplished by electroless plating of a metal selected from the group consisting of nickel, chromium, cobalt and cobalt-nickel, to form a substantially uniform coating having good wear resistance and being strippable for replating and continued die use.

이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

Blanding ; Wendell S. ; Van Dewoestine ; Robert V., Extrusion die.
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Lees Robert (Chester VA), Spin pack assembly.
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이 특허를 인용한 특허 (17) 인용/피인용 타임라인 분석

Dullien,Francis A. L.; Durand,Daniel; Diab,C？line; Diab,Aur？lie; Evrard,Barbara, Catalyst support with intersecting channel network, catalysis reactor comprising same and method for making same.
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Lundsager Christian B. (Ashton MD), Die and processes for manufacturing honeycomb structures.
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Ozaki Sei (Aichi JPX) Futamura Shoji (Kawasaki JPX) Kojima Masaru (Nagoya JPX) Inoue Satoru (Aichi JPX), Die for extruding ceramic honeycomb structural bodies.
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Minjolle Louis (Tarbes FRX), Die for extruding ceramic material to form a body of cellular structure, and a method of obtaining said die.
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Ozaki Sei (Aichi JPX) Futamura Shoji (Kawasaki JPX), Die for extruding honeycomb structural body.
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Starkey, Glenn, Dry, lubricated ejector pins.
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Yamamoto Shinichi (Takahama JPX) Ito Toshihiko (Aichi JPX), Extrusion die and method for producing extrusion die for forming a honeycomb structure.
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Yamamoto Shinichi (Takahama JPX) Ito Toshihiko (Aichi JPX), Extrusion die and method for producing extrusion die for forming a honeycomb structure.
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Cunningham George M. (Horseheads NY) Frost Rodney I. (Corning NY) Lachman Irwin M. (Corning NY), Extrusion die for protrusion and/or high cell density ceramic honeycomb structures.
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Peters Donald C. (Savona NY), Extrusion die manufacture.
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Abbott, III, John Steele; Boger, Thorsten Rolf; He, Lin; Khanna, Samir; Miller, Kenneth Richard; Sorensen, Jr., Charles Mitchel, Metal honeycomb substrates for chemical and thermal applications.
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Ozaki Sei (Aichi JPX) Futamura Shoji (Kawasaki JPX), Method of manufacturing a die for extruding honeycomb body.
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Brew Thomas W. ; Peters W. Neil ; Shalkey Mark A., Modified slot extrusion dies.
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Reed James R. (Flint MI), Monolith extrusion die construction method.
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Yagi, Takayuki; Matsuyama, Akihiro; Koyama, Shinichi; Fukushima, Masato; Takahashi, Kinji; Tosa, Kazumichi; Seino, Masashi; Terada, Takeshi; Yamakawa, Yuu; Takano, Motoo, Press die for metal plate molding, the processing method of the surface of the press die, and manufacturing method of a vehicle body.
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Abe Sadaji (Koshigaya JPX) Suzuki Sakae (Sohka JPX), Separating device in an automatic stamping machine.
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Kohno Yuichiro (Itami JPX) Hara Akio (Itami JPX), Stick of composite materials and process for preparation thereof.
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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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[미국특허] Extrusion die and method for making same 원문보기