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一年来,我们在现有的镀铁工艺的基础上,进行了镀铁试验,收到了较好的效果。我们先后修复了汽车立轴、十字轴、活塞肖、半轴套管及一些孔类、花键类零件,并装车使用。尤其是1977年底,我们在一个月的时间里,成功地镀了四根解放曲轴,直径增大3.56～3.74毫米,以外观判断可继续增大到4毫米以上,但由于受R角镀层薄的影响,主轴颈和连杆轴颈加工后都不到出厂尺寸,只达到第三级修理尺寸。虽还没达到把报废曲轴一次镇到可加工成出厂尺寸这一高度,但对实现一次把报废曲轴恢复到出厂尺寸有很大的信心。我们修复的曲轴已装车使用,未见异常。下面谈谈粗浅体会,不当之处请指正。
In the past year, based on the existing iron plating process, we conducted the iron plating test and received good results. We have successively fixed the automobile vertical axis, the cross shaft, the piston Shaw, the half shaft sleeve and some holes, the spline parts, and loads the vehicle to use. Especially at the end of 1977, we successfully plated four crankshaft crankshafts in a month’s time. The diameter increased 3.56 ~ 3.74mm, judging from the appearance can continue to increase to more than 4mm, but due to R angle coating thin Affect the main journal and connecting rod neck machining are not to the factory size, only to reach the third-level repair size. Although it has not yet reached the height of the town once scrapped crankshaft can be machined to the factory size, there is great confidence in achieving a return to the factory size of a scrapped crankshaft. The crankshaft we repaired has been loaded and used, no abnormalities were found. Here to talk about the superficial experience, please correct me wrong.