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首页> 外文期刊>R & D 神戶製鋼技報 >MnSプレアロイ型快削鋼粉と酸化物添加型快削鋼粉による被削性改善
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MnSプレアロイ型快削鋼粉と酸化物添加型快削鋼粉による被削性改善

机译：MnS预合金型易切削钢粉和添加氧化物的易切削钢粉提高了切削性能

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KOBE STEEL has two types of free cutting steel powder, MnS pre-alloyed free cutting steel powder and free cutting steel powder mixture with oxide added. The machinability of MnS pre alloyed free cutting steel powder is improved by using solid lubrication to prevent tool wear. The effect of uniform MnS particle dispersion results in a remarkable improvement in machinability when using a small diameter drill. The Free cutting steel powder mixtures with oxide added have been given the names KSX and KSX－Ⅱ. KSX is a compound oxide containing calcium oxide, and KSX forms a protective film called belag on tools during machining. The belag protects against tool wear. KSX－Ⅱ contains an addition of oxide with a low melting point and reduces tool wear by the stabilization of a built-up edge and its restraining effect on plastic deformation. We have three types of free cutting steel powder, and they have different mechanisms. Each type of free cutting steel has its own machining condition requirements. The type should be selected with reference to tool materials, the shapes of the parts, and machining conditions.
机译：KOBE STEEL有两种类型的易切削钢粉：MnS预合金易切削钢粉和添加了氧化物的易切削钢粉混合物。 MnS预合金易切削钢粉的可切削性通过使用固体润滑来防止工具磨损而得到改善。当使用小直径钻头时，均匀的MnS颗粒分散效果可显着改善切削性。添加了氧化物的易切削钢粉混合物的名称为KSX和KSX－Ⅱ。 KSX是一种含氧化钙的复合氧化物，KSX在加工过程中会在工具上形成称为保护层的保护膜。护圈可防止工具磨损。 KSX－Ⅱ中添加了低熔点氧化物，并通过稳定堆积边缘及其对塑性变形的抑制作用来减少工具磨损。我们有三种类型的易切削钢粉，它们具有不同的机理。每种易切削钢都有其自己的加工条件要求。选择类型时应参考工具材料，零件形状和加工条件。

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