Title:
MATERIAL FOR GRINDING TOOL, AND GRINDING SURFACE PLATE USING THE MATERIAL
Document Type and Number:
Japanese Patent JP3691913
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To realize a high hardness without carrying out a quenching heat treatment and the like, in a material for grinding tool used for a grinding surface plate and the like.
SOLUTION: This material for grinding tool consists of an iron material which includes 0.8 to 3.5wt.% of C; 1 to 7wt.% of Si; 5 to 14wt.% of Ni; and no more than 1wt.% of Mn; and furthermore, it includes at least one sort selected from Mg, Ca, and Ce of less than 0.1wt.%, as necessary. This iron material has a graphite composition, and at the same time, its hardness is Hv 250 or higher. A grinding surface plate 1 consists of the above materials for grinding tool, and it has a martensite composition of 30% or more in the area ratio, for example, and has a metal composition in which the graphite spherical rate is 70% or more.
Inventors:
Takanobu Nishimura
Application Number:
JP23551296A
Publication Date:
September 07, 2005
Filing Date:
September 05, 1996
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
B24B37/12; B24B37/14; B24B37/16; (IPC1-7): B24B37/04
Domestic Patent References:
| JP6041686A | ||||
| JP61219566A | ||||
| JP4080792B2 | ||||
| JP6071553A | ||||
| JP8174407A | ||||
| JP7090466B2 |
Attorney, Agent or Firm:
Saichi Suyama
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