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Title:
CASTING HAVING HIGH HEAT TRANSFER SURFACE, AND MOLD AND PATTERN FOR FORMING THE SAME
Document Type and Number:
Japanese Patent JP2001232444
Kind Code:
A
Abstract:

To improve the heat transfer characteristics of various surfaces of components requiring the surface roughness equivalent to that of a metal component used in a turbine engine.

A casting includes a heat transfer surface having a large number of cavities. The density of the large number of cavities is about 25 piece/cm2 to about 1,100 piece/cm2 to increase the surface area, and the heat transfer capacity is increased accordingly. A mold to form a pattern to form the casting is also provided. The mold includes a surface for demarcating a part of a chamber, and a large number of particles having the mean grain size of about 300-2,000 μm are adhered thereto.


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Inventors:
LEE CHING-PANG
HASZ WAYNE CHARLES
ABUAF NESIM
JOHNSON ROBERT ALAN
Application Number:
JP2001001111A
Publication Date:
August 28, 2001
Filing Date:
January 09, 2001
Export Citation:
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Assignee:
GEN ELECTRIC
International Classes:
B22D15/00; B22C7/02; B22C9/02; B22C9/04; B22C9/22; B22D25/06; (IPC1-7): B22C7/02; B22C9/04; B22C9/22
Domestic Patent References:
JPS63170050U1988-11-04
JPS63137565A1988-06-09
JPH02290664A1990-11-30
JPS6076266A1985-04-30
JP2001164901A2001-06-19
JPH10166105A1998-06-23
JPH11159301A1999-06-15
JPH08240102A1996-09-17
JPS61108803A1986-05-27
JPH03182602A1991-08-08
JPH01146710A1989-06-08
JPH10128496A1998-05-19
Attorney, Agent or Firm:
Kenichi Matsumoto



 
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