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制动缸体的材料为HT15-33,净重52公斤。对制动缸体铸件的要求是:铸件上不应有裂纹与影响质量和外观的气孔、缩孔、砂眼和缩松等缺陷;在规定范围内的缺陷,允许焊补(但精加工后发现的缺陷只能用铜焊条焊补),焊补后应修平。我厂生产的制动缸体采用潮模铸造,加工后发现有砂眼,且精加工后发现的缺陷在修补后往往难以达到技术要求,只能报废。为了尽量避免上述
Brake cylinder material for the HT15-33, net weight 52 kg. Brake cylinder casting requirements are: there should be no cracks on the casting and affect the quality and appearance of pores, shrinkage, trachoma and shrinkage and other defects; within the specified range of defects, allowing welding (but after finishing found The defect can only use copper welding welding), welding repair should be flattened. The brake cylinder produced by our factory is made of tide mold casting. After processing, it is found that there are trachoma, and the defects found after finishing are often difficult to meet the technical requirements after being repaired and can only be scrapped. In order to avoid the above