Title:
【発明の名称】鋳造品鋳造装置及び方法
Document Type and Number:
Japanese Patent JP2003523828
Kind Code:
A
Abstract:
Casting systems and methods form a hollows metal casting, in which the hollows metal casting comprises a fine-grain, homogeneous microstructure. The microstructure is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification of the metal from a liquidus state to a solid state. The casting system (3) with for forming hollows castings comprises an electroslag refining system; a nucleated casting system (2) in which a casting is solidified; and a cooled mandrel (205) disposed at least in a liquidus portion (148) of the casting (145) in the nucleated casting system. The liquidus portion of the metal casting is solidified around the cooled mandrel in a manner sufficient to form a hollows casting with microstructure that comprises a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification from a liquidus state to a solid state.
Inventors:
Benz, Mark Gilbert
Carter, william thomas, junior
Zabara, Robert John
Bruce Alan, Knudsen
Carter, william thomas, junior
Zabara, Robert John
Bruce Alan, Knudsen
Application Number:
JP2001561469A
Publication Date:
August 12, 2003
Filing Date:
March 29, 2000
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
B22D1/00; B22D7/04; B22D23/00; B22D23/10; B22D25/02; B22D27/04; B22F3/115; C22B9/18; C22B9/193; F01D25/00; C23C4/12; (IPC1-7): B22D23/10; B22D1/00; B22D7/04; B22D23/00; B22D25/02; B22D27/04; C22B9/18; C22B9/193; F01D25/00
Domestic Patent References:
| JPS55161553A | 1980-12-16 | |||
| JPH05247550A | 1993-09-24 | |||
| JPH06200334A | 1994-07-19 | |||
| JPH06304702A | 1994-11-01 | |||
| JPS63238948A | 1988-10-05 |
Foreign References:
| US5381847A | 1995-01-17 |
Attorney, Agent or Firm:
Kenichi Matsumoto (2 outside)