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Cr 12型解包括Cr 12、Cr 12W、Cr 12 MoV。它们均属于莱氏体合全工具钢。在铸态时具有网状共晶组织。冶金厂供应的Cr 12型钢均为轧制状态,虽然碳化物已有一定程度的破碎,但是由于轧制的方向性和碳化物的不均匀性,所以不能直接用来制造冷变形模具,必须经过改锻才行。Cr 12型钢是一种具有很高的淬透性和耐磨性且热处理变形小的模具钢,但由于导热性差、塑性低、变形抗力小、锻造温度范围窄,其锻造技术较难掌握。我厂多年来一直从事冷冲模的制造,在锻造生产中积累了一定的
Cr 12-type solutions include Cr 12, Cr 12W, Cr 12 MoV. They belong to the austenitic tool steel. Mesh eutectic in the as-cast state. Cr 12 steel supplied by the metallurgical plant is in a rolling state. Although carbides have been crushed to some extent, they can not be directly used to manufacture cold-deformed dies due to the rolling direction and unevenness of carbides. Forging Caixing. Cr 12 steel is a kind of die steel with high hardenability and wear resistance and small heat treatment deformation. However, forging technology is difficult to master because of its poor thermal conductivity, low plasticity, small deformation resistance and narrow forging temperature range. I plant has been engaged in the manufacture of cold stamping dies, forging production has accumulated a certain amount of