At the same time, the turn-around ring of the hammer head is made of special composite material, with the qualities of wear-resisting, self - lubricating, non-maintaining, easy changing etc.
同时锤头回转圈采用特殊复合材料，具有耐磨、自润滑、免维护、易更换等特点。
Self-lubricating composite which possesses superior antifriction and wear resistance has been one of the central issues for advanced material research.
具有优良减摩耐磨性能的自润滑材料是材料研究的热点领域之一。
All the valve's internal self-lubricating bearings are sliding bearings, the whole material the use of carbon steel PTFE liner.
所有阀门的内部轴承均采用自润滑式滑动轴承，材质采用碳钢全衬聚四氟乙烯。
The present invention relates to large mechanical product manufacture, and is especially preparation process of self-lubricating composite polymer material for mechanical product.
一种大型机械产品制造领域的机械产品用自润滑复合层高分子材料的制备方 法。
The invention discloses a wear-resistant self-lubricating nylon compound material and a method for preparing the same, and belongs to the technical field of macromolecular materials.
本发明公开了一种耐磨自润滑尼龙复合材料及其制备方法，属于高分子材料技术领域。
PTFE-bronze powder-steel is a widely used three-layer self-lubricating bearing material with good anti-friction and anti-wear.
聚四氟乙烯（PTFE）-铜粉-钢背复合材料是一种广泛应用的三层结构自润滑轴承材料，具有良好的减摩耐磨性能。
PTFE-bronze powder-steel is a widely used three-layer self-lubricating bearing material with good anti-friction and anti-wear.
聚四氟乙烯（PTFE）-铜粉-钢背复合材料是一种广泛应用的三层结构自润滑轴承材料，具有良好的减摩耐磨性能。
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