Copper alloy of drawing mould

Abstract

The Cu alloy for drawing mold contains Cr 0-0.5 wt%, Mn 1.8-4.0 wt%, Fe 1.8-4.0 wt% and Al 12.5-14.5 wt%, except Cu and inevitable small amount of impurity. It has hardness of HRC 42-50 deg, high heat conductivity, good machinability, small friction coefficient, high wear resistance, high anticorrosion, smoothness and long service life. It is used mainly in machining stainless steel drawing mold, thin sheet drawing mold, steel pipe forming roller, automobile and motorcycle steel ring machining roller, gear for heavy machinery, etc.

Description

(1) Technical field:

[0001] The invention relates to the field of alloy technology, specifically a copper alloy, which is mainly used for manufacturing stainless steel sheet drawing dies, thin steel sheet drawing forming dies, rollers for forming steel pipes, rollers for steel rings of automobiles and motorcycles, Gears of heavy machinery, high-speed precision parts of various machinery, etc. (two) background technology:

[0002] At present, stainless steel plate drawing dies, thin steel sheet drawing forming dies, rollers for steel pipe forming, rollers for automobiles and motorcycle steel rings, gears for heavy machinery, and high-speed precision parts for various machinery are mostly made of ordinary die steel. , the thermal conductivity of ordinary die steel is poor, only 42W / m.K, heat treatment is required in the production process, which increases the process and complicates the processing. performance. (3) Contents of the invention:

[0003] The purpose of the pre...