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특허 상세정보

Cooling roll, ribbon-shaped magnetic materials, magnetic powders and bonded magnets

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B22D-011/124   
미국특허분류(USC) 164/443; 164/423; 164/427; 164/428; 164/429
출원번호 US-0870241 (2001-05-30)
우선권정보 JP-0159772 (2000-05-30); JP-0399880 (2000-12-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Harness, Dickey & Pierce, P.L.C.
인용정보 피인용 횟수 : 10  인용 특허 : 11
초록

Disclosed herein is a cooling roll which can provide bonded a magnet having excellent magnetic properties and having excellent reliability. A melt spinning apparatus is provided with a tube 2 having a nozzle 3 at the bottom thereof, a coil 4 for heating the tube and cooling roll 5 having a circumferential surface 53 in which dimple correcting means is provided. A melt spun ribbon 8 is formed by injecting the molten alloy 6 from the nozzle 3 so as to be collided with the circumferential surface 53 of the cooling roll 5 in an inert gas atmosphere (ambient ...

대표
청구항

1. A cooling roll for manufacturing a ribbon-shaped magnetic material by colliding a molten alloy to a circumferential surface of the cooling roll so as to cool and then solidify the alloy, the cooling roll comprising:dimple correcting means defined by a plurality of ridges provided on the circumferential surface of the cooling roll for dividing dimples that are produced on a roll contact surface of the cooling roll,wherein the plurality of ridges are provided by forming a plurality of grooves at an angle less than or equal to 30° relative to an edg...

이 특허에 인용된 특허 (11)

  1. Honeycutt ; III LeRoy (Salisbury NC). Apparatus for and process of direct casting of metal strip. USP1990084945974.
  2. Polk Donald E. (Morristown NJ) Bedell John R. (Sparta NJ). Apparatus for continuous casting metal filament on interior of chill roll. USP1976023939900.
  3. Bedell ; John R. ; Rothmayer ; Noel Y. ; Saunders ; Ralph R. ; Smith ; R obert W.. Chill roll casting of continuous filament. USP1978034077462.
  4. Bartlett Edwin S. (Worthington OH) Maringer Robert E. (Worthington OH) Rayment Judith J. (Columbus OH). Direct strip casting on grooved wheels. USP1989094865117.
  5. Hackman Lloyd E. (Worthington OH) Dickson James (Stirling NJ) Dunlap David L. (Gahanna OH) Handshey Mark E. (Columbus OH). Melt overflow system for producing filamentary and film products directly from molten materials. USP1990064930565.
  6. Hackman Lloyd E. (Worthington OH) Dickson James (Stirling NJ) Dunlap David L. (Gahanna OH) Handshey Mark E. (Columbus OH). Melt overflow system for producing filamentary and film products directly from molten materials. USP199009RE33327.
  7. Fukuno Akira (Chiba JPX) Nakamura Hideki (Narita JPX) Yoneyama Tetsuhito (Narashino JPX). Method for preparing permanent magnet material, chill roll, permanent magnet material, and permanent magnet material pow. USP1997095665177.
  8. Honeycutt ; III LeRoy (Salisbury NC) Key James C. (Salisbury NC) Moody ; III Herbert (Salisbury NC). Method of and apparatus for direct casting of metal strip. USP1990064934443.
  9. Gaspar Thomas A. (Columbus OH). Textured substrate and method for the direct, continuous casting of metal sheet exhibiting improved uniformity. USP1987114705095.
  10. Yukumoto Masao (Chiba JPX) Ozawa Michiharu (Chiba JPX) Yamane Hiroshi (Chiba JPX). Twin cooling roll apparatus for producing rapidly solidified metal strip. USP1991045010947.
  11. Hackman Lloyd E. (Worthington OH). Two wheel melt overflow process and apparatus. USP1990024903751.

이 특허를 인용한 특허 피인용횟수: 10

  1. Sasaki, Shiro. Alloy flake for rare earth magnet, production method thereof, alloy powder for rare earth sintered magnet, rare earth sintered magnet, alloy powder for bonded magnet and bonded magnet. USP2009087571757.
  2. Sasaki,Shiro. Alloy flake for rare earth magnet, production method thereof, alloy powder for rare earth sintered magnet, rare earth sintered magnet, alloy powder for bonded magnet and bonded magnet. USP2008107442262.
  3. Nishiuchi,Takeshi; Kanekiyo,Hirokazu; Hirosawa,Satoshi; Miyoshi,Toshio. Compound for rare-earth bonded magnet and bonded magnet using the compound. USP2007057217328.
  4. Kanekiyo,Hirokazu; Miyoshi,Toshio; Hirosawa,Satoshi. Iron-based rare earth alloy nanocomposite magnet and method for producing the same. USP2007047208097.
  5. Miyoshi,Toshio; Kanekiyo,Hirokazu; Hirosawa,Satoshi. Method for producing nanocomposite magnet using atomizing method. USP2009037507302.
  6. Eastman, Mark. Method of forming textured casting rolls with diamond engraving. USP2012028122937.
  7. Kanekiyo,Hirokazu; Miyoshi,Toshio; Hirosawa,Satoshi. Nanocomposite magnet. USP2007087261781.
  8. Kanekiyo,Hirokazu; Miyoshi,Toshio; Hirosawa,Satoshi; Shigemoto,Yasutaka; Shioya,Yusuke. Permanent magnet including multiple ferromagnetic phases and method for producing the magnet. USP2007117297213.
  9. Koch, Alan A.. Semi-liquid metal processing and sensing device and method of using same. USP2014058728196.
  10. Koch, Alan A.. Semi-liquid metal processing and sensing device and method of using same. USP2012088241390.