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我厂生产的FA401型棉纺粗纱机用电镀罗拉,要求在镀层上刻上排车顺序号。我们曾试验过各种方法,但大都存在着设备造价高,工艺较复杂,模具难度大,寿命短的缺点,且都具有不经济的通病。为此,我们想到采用机床表面淬火可出现理想痕迹的方法,经试验效果极好。具体方法是:用厂内现有的一台BK-500型控制变压器,输入220V电压,输出为6.3V,再经桥
FA401 cotton spinning roving machine I produced with electroplating roller, carved on the car row car serial number. We have experimented with various methods, but most of them have the disadvantages of high equipment cost, complicated processes, difficult molds and short life span, all of which have the common problem of uneconomicalness. To this end, we think of using the machine tool surface quenching can be a perfect trace of the method, the test results are excellent. The specific method is: With the existing plant a BK-500-type control transformer, input 220V voltage, the output is 6.3V, and then by the bridge