| 摘要 |
PROBLEM TO BE SOLVED: To provide a wire drawing die with which the generation of heat is less when drawing wire by attaining the reduction of the coefficient of friction of a sintered hard alloy tool. SOLUTION: In the sintered hard alloy tool consists by sintering the powder of hard materials of one or more kinds of carbide, nitride and carbonitride and soft metallic binder, the coefficient of friction of at least the working part where is brought into contact with a material to be worked is defined as <=0.10.
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