为了去掉步枪射校后的火药残渣,一般都用铬酐溶液进行处理,在现行工艺条件下,处理后枪件的发兰层常出现严重发红现象。提高溶液的浓度、温度和延长处理时间也可以消除发红现象,但又严重出现发白,还增大了铬酐消耗量,现在介绍一 In order to remove the gunpowder after school rifle gunpowder, are generally treated with chromic anhydride solution, under the current process conditions, the processing of gunfire after the blue layer often appear serious redness. Increasing the concentration of the solution, the temperature, and the extended treatment time can also eliminate the redness phenomenon, but with serious whitening, but also increase the consumption of chromic anhydride, and now introduce a