我厂生产轴承零件钢球。滚针和直径小于15MM的滚针套等产品,现全部在75瓩箱式中进行生产、存在产品脱碳层厚、加热不均匀,加热时间长等缺点,因而造成产品留磨量过大,磨削加时间长等缺点,所以我厂才选用RG—30—9保护气体炉作为改造上述产品质量的设备,现将试炉过程中选用的工艺情况、质量、和存在问题介绍如下: I plant bearing parts ball. Needle and needle roller diameter less than 15MM and other products, are all in the 75 瓩 box-type production, there is product decarburization layer thickness, uneven heating, heating a long time and other shortcomings, resulting in excessive wear and tear of the product left, Grinding plus a long time and other shortcomings, so I chose the plant RG-30-9 gas furnace protection as the quality of the above equipment to transform the equipment, the process is now selected test process conditions, quality, and problems are as follows: