十堰郧阳区雪佛龙CXEP润滑脂-HD液压油经销拉
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十堰市郧西县上津经销雪佛龙液压油-齿轮油产品
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十堰市竹山县代理商雪佛龙液压油-钢缆润滑脂
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十堰竹溪蒋家堰镇代理商雪佛龙液压油-造纸循环220机油
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十堰市房县代理商雪佛龙AW液压油-传动油产品200L
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丹江口市均州路街道供应链雪佛龙液压油-EP锂基脂
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十堰张湾区车城街道供应链雪佛龙液压油-导轨油在边界润滑中，当金属表面只承受中等负荷时，如有一种添加剂能被吸附在金属表面上或与金属表面剧烈磨损，这种添加剂称为抗磨添加剂。当金属表面承受很高的负荷时，大量的金属表面直接接触，产生大量的热，而抗磨剂形成的膜也被破坏，不再起保护金属表面的作用，如有一种添加剂能与金属表面起化学反应生成化学反应膜，起润滑作用，防止金属表面擦伤，甚至熔焊，通常把这种最苛刻的边界润滑叫做极压润滑，而这种添加剂称为极压添加剂。
在传统的润滑理论中，把润滑分为液体润滑和边界润滑。作相对运动的两个金属表面完全被润滑油膜隔开，没有金属的直接接触，这种润滑状态叫做液体润滑；随着载荷的增加，金属表面之间的油膜厚度逐渐减薄，当载荷增至一定程度，连续的油膜被金属表面的峰顶破坏，局部产生金属表面之间的直接接触，这种润滑状态叫做边界润滑。 In boundary lubrication, if there is an additive which can be adsorbed on the surface of metal or wear with it, it is called anti-wear additive. When the metal surface is subjected to a high load, a large number of metal surface contact directly, producing a large amount of heat, and wear-resistant agent formed film is also destroyed, no longer play the role of protecting the metal surface, if there is an additive that can react with the metal surface to form a chemical reaction film, act as a lubricant, prevent the metal surface from scratching, or even fusion welding, the most stringent boundary lubrication is usually called extreme pressure lubrication, and this kind of additive is called extreme pressure additive. In the traditional lubrication theory, the lubrication is divided into liquid lubrication and boundary lubrication. The relative motion of the two metal surfaces is completely separated by the oil film, and there is no direct contact between the metals. This lubrication state is called liquid lubrication, when the load is increased to a certain extent, the continuous oil film is destroyed by the peak of the metal surface, resulting in local direct contact between the metal surface, this lubrication state is called boundary lubrication.
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