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PM specific methods for recycling the fine and ultra-fine machining chips

机译:PM回收精细和超精细加工屑的特定方法

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The paper presents a simple method to recycle the bearing steel scrap in view to recover the solid part and to use it as additive in sintered friction materials. The method consists of treating and removing of oils, water and surface oxide film. The recovered powders consist of a mixture of metallic and nonmetallic particles. The amount and the chemical composition of the non-metallic part vary with the type and the quality of the grinding wheel. The recovered powder mix used as such or in the composition of some friction materials, in a proportion of 80 wt. The obtained results suggest the recovered powders can be used in the following fields: 1) metallic parts as limit-switcher or spacers; 2) sintered friction materials; 3) friction additive for the organic matrix friction materials.
机译:本文提出了一种简单的方法来回收轴承钢废料,以回收固体零件并将其用作烧结摩擦材料中的添加剂。该方法包括处理和去除油,水和表面氧化膜。回收的粉末由金属和非金属颗粒的混合物组成。非金属零件的数量和化学成分随砂轮的类型和质量而变化。回收的粉末混合物原样或以某些摩擦材料的成分使用,比例为80 wt%。所得结果表明,回收的粉末可用于以下领域:1)金属零件,作为限位开关或垫片; 2)烧结摩擦材料; 3)摩擦添加剂,为有机基摩擦材料。

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