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PREHARDEN STEEL FOR MIRROR-LIKE FINISHING HAVING EXCELLENT MACHINABILITY AND ELECTRIC DISCHARGE MACHINABILITY
PREHARDEN STEEL FOR MIRROR-LIKE FINISHING HAVING EXCELLENT MACHINABILITY AND ELECTRIC DISCHARGE MACHINABILITY
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机译：具有出色机械加工性和放电加工性的镜面预涂钢
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摘要
PURPOSE:To develop the titled preharden steel by adding a specific amt. of S as the element which improves the machinability to the components of said steel and suppressing the contents of Al, Zr and N as the elements which permit the generation of hard inclusions such as Al2O3, ZrN, etc., therein. CONSTITUTION:The steel material contg., by weight, 0.15-0.35% C, 0.05-0.80% Si, 0.50-2.00% Mn, 0.030% P, 0.03-0.10% S, 0.50-2.50% Cr, 0.05-1.00% Mo, 0.01-0.10% V, 0.004% Al, 0.03-0.06% Zr, 0.0030% N and 0.0040% O or furthermore contg. 0.0005-0.0030% B and 0.005-0.020% Ti is used as the titled preharden steel for the production of a mold for plastic injection molding.
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机译：目的：通过添加特定的amt开发标题为预硬化的钢。作为元素的S，其改善了对所述钢的成分的可切削性并抑制了Al，Zr和N的含量，作为其中允许产生诸如Al 2 O 3，ZrN等的硬质夹杂物的元素。组成：该钢材按重量计包括0.15-0.35％C，0.05-0.80％Si，0.50-2.00％Mn，<0.030％P，0.03-0.10％S，0.50-2.50％Cr，0.05-1.00％ Mo，0.01-0.10％V，<0.004％Al，0.03-0.06％Zr，<0.0030％N和<0.0040％O 0.0005-0.0030％的B和0.005-0.020％的Ti用作生产用于塑料注射成型的模具的标题预硬化钢。
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