润滑

润滑是通过在两个运动表面之间引入减少摩擦介质来控制摩擦和运动部件的控制。减少摩擦剂（润滑剂）可以是固体，塑料或流体物质。最常见的类型润滑剂是油脂和油。油脂由油和增厚剂制成。加厚剂有助于润滑表面，而油充当润滑剂。油脂中使用的油可以是矿物基，蔬菜，合成或组合。有针对性的应用确定应使用的油类型（基础油）。如果对环境有担忧，建议使用植物油。润滑有三种主要类型；全卫生部，边界和混合润滑。完整的膜润滑可以分为两个子类别。流体动力和弹性水力动力学。 The hydrodynamic lubrication happens when two surfaces are fully separated using a film of fluid. Then, elastohydrodynamic is similar to the hydrodynamic but differs in that the lubricant layer is thinner. The boundary lubrication is used where there are regular device/ machine starts and stops. The best lubricants to use in this case are oils with anti-wear additives to help protect the surfaces. The additives cling to the surfaces and create a type of sacrificial layer that helps to The mixed lubrication is a hybrid of hydrodynamic lubrication and boundary lubrication. Though the bulk of the surfaces in this lubrication type is separated by a layer of lub, the asperities still get into contact. This is why the additives are required. It is important to understand your device or the moving part and use the right lubrication. When used appropriately, lubrication can help to achieve the following: 1. Reducing friction 2. Preventing/ slowing wear 3. Protecting equipment from corrosion 4. Controlling contamination 5. Controlling temperatures 6. Transmitting power