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变形区内油膜的建立及厚薄,直接影响接触偶间的摩擦性质,是轧制过程摩擦与润滑机理的基本问题之一。同时,油层的厚薄还影响变形区内摩擦系数、摩擦力和轧制压力大小以及产品表面质量优劣。一、油膜测量方法采用秤重法测量油膜厚度。首先,用汽油、丙酮等挥发性溶剂清洗、擦净轧辊与轧件表面。干燥后,将润滑油滴至试样表面,轧后秤其重量(W_1),再用求积仪测得油
The formation and thickness of the oil film in the deformation zone have a direct impact on the friction properties of the contact even, which is one of the basic problems in the friction and lubrication mechanism of the rolling process. At the same time, the thickness of the oil layer also affects the friction coefficient, friction and rolling pressure in the deformation zone and the quality of the product surface. First, the oil film measurement method using the weight of oil film thickness measurement. First of all, with gasoline, acetone and other volatile solvents to clean and wipe the roll and rolled surface. After drying, the lubricating oil is dropped onto the surface of the sample, and the weight of the sample is weighed (W_1) and then measured by a sigma meter