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一、环氧树脂粘合塑料在修理中的使用情况我校动力科每年大修机床的数量很多,其中车床占多数。大修时发现车床床身导轨局部磨损较大,在重新修磨时,其磨削量大于原来的磨损量,再加上大拖板的磨损量,则整个尺寸键的变化非常大。由于尺寸键变化的影响,光杠和絲杠的三孔等高、齿条的啮合等都相应地受到变化。要修复这些部件,就要三孔和齿条重新定位,或将溜板箱垫高,这样修理方法复杂,修理时同较长,一台车床经过大修三次后,再大修时,许多大件只能报废,影响机床寿命。提高车床床身耐磨性的方法,有导轨镶钢、导轨淬火、喷涂塑料、在大拖板导轨上粘接不易磨损的塑料板等。前三种方法的工艺较复杂,比较难掌握,于是我们在1964年上半年采用后一种方法,大修了几台车床。经过使用,效果很好,并和维护较好的C620-1车床做
First, the use of epoxy resin in the repair of the repair section of our school overhaul the number of machine tools a lot each year, of which the majority of lathes. Overhaul found lathe bed guide rail local wear larger grinding in the re-grinding, the amount of grinding greater than the original amount of wear, coupled with the big drag wear, then the size of the key changes are very large. Due to the influence of the change of the size key, the three holes of the light bar and the lead screw are all the same, the meshing of the rack bars and the like are correspondingly changed. To repair these parts, it is necessary to re-positioning three holes and racks, or skid box padding, so that the repair method is complex, with a longer repair, a lathe after three major overhauls, and then overhaul, many large pieces Can be scrapped, affecting machine tool life. Methods to improve the wear resistance of the lathe bed, a rail mounted steel, rail quenching, spraying plastic, bonding on the hard drive rail is not easy to wear plastic plates. The first three methods of the process is more complex, more difficult to grasp, so we use the latter method in the first half of 1964, overhaul of a few lathes. After use, the effect is very good, and maintenance and better C620-1 lathe do