汽室套是蒸汽机车上的摩擦磨损件,它的厂修修换率为100％,因此我厂的新制汽室套的任务量较大。在新制和压装过程中,一度曾因产生裂纹而报废的汽室套较多,影响了生产进度。为了改变这种状况,对汽室套裂纹进行了分析,找出了产生裂纹的原因,提出了防止或减少裂纹的措施,从而提高了汽室套的质量。一、汽室套的材料和外形汽室套由HT20～40铸铁制成。汽室套外形(建设型)如图1。 Steam chamber is a steam locomotive friction and wear pieces, and its factory repair change rate of 100%, so I plant the new system of steam chamber sets of tasks. In the new system and press-fitting process, there was once because of the cracks and scrapping more sets of steam chamber, affecting the production schedule. In order to change this situation, the crack of the chamber was analyzed, the cause of the crack was found, the measures to prevent or reduce the crack were put forward, and the quality of the chamber was improved. First, the material and shape of the steam chamber cover Gas chamber made of HT20 ~ 40 cast iron. Steam chamber cover shape (construction type) shown in Figure 1.