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四、量块和角块研磨时可能产生的问题及原因 1.工作面烧伤烧伤的原因可能是平板压砂太少或打光平板次数过多,使平板最细处无切削力,加上研磨时间过长引起的。 2.表面粗糙度,不均匀。其原因是平板压砂太粗,打磨平板压力过小,修理时间过长,手力加偏,同时粗、细、精研区衔接不好。 3.工作面划伤。可能是压砂不均,嵌砂不牢,量块表面有毛刺,有灰尘。 4.量块塌边,中间凸。原因是平板平面不够凸,修理时间过长,量块定温冷却不够,平板两头砂少,技术不熟练等。 5.平面性太凹,两头塌边。可能是平板太凸,连续修理时间过长,没有定温冷却。 6.薄量块弯曲变形。平板无切削力,修理压力过大,研磨速度太快,对一面特别是凸面研磨时间过长。
Fourth, the amount of block and corner block may occur when grinding and the reasons 1. Burn burn the surface may be due to too little flat sand or light plate too many times, so that the thinnest plate no cutting force, coupled with grinding Over time caused. 2 surface roughness, uneven. The reason is that the sand pressure is too thick plate, grinding plate pressure is too small, repair time is too long, plus manual force, at the same time coarse, thin, lacquer area convergence is not good. 3. Face scratch. May be uneven sand, sand filling is not strong, glitches the surface of the block, with dust. 4. Measuring block collapse edge, the middle convex. The reason is that the flat surface is not convex enough, repair time is too long, the amount of fixed cooling temperature is not enough, flat sand less sand, unskilled and so on. 5. Flatness too concave, two sides collapse edge. May be flat too convex, continuous repair time is too long, there is no set temperature cooling. 6 thin pieces of bending deformation. Plate no cutting force, repair pressure is too large, grinding speed is too fast, especially on the one side of grinding time is too long.