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0前言2.5高速钢(W6Cr5Mo4V2)直柄麻花钻头真空淬火后的回火热处理工艺已由真空回火取代了过去的盐浴回火。直柄麻花钻头采用真空回火可获得更高的表面质量、金相组织的均匀性及使用寿命。本文阐述高速钢(W6Cr5Mo4V2)直柄麻花钻头在使用真空回火工艺中的一些经验及注意事项,以
0 Preface 2.5 high-speed steel (W6Cr5Mo4V2) straight shank twist drill vacuum quenching after tempering heat treatment process has been replaced by the vacuum tempering the salt bath tempering. Straight shank twist drill head vacuum annealing available higher surface quality, microstructure uniformity and service life. This article describes some experience and precautions in the use of vacuum tempering process of high-speed steel (W6Cr5Mo4V2) straight shank twist drill to