刹车活塞磷皂化后中心空洞的缺陷研究  

STUDY ON CENTRAL CAVITY DEFECTS OF BRAKE PISTON AFTER PHOSPHORUS SAPONIFICATION

作　　者：王兵[1] 李双居 杭亮 赵瑞华 孙玉春 Wang Bing Li Shuangju Hang Liang Zhao Ruihua Sun Yuchun(Automotive Engineering Department, Hebgi Vocational and Technical College, Shijiazhuang, Hebei, 050091 HBIS Group Shisteel Company , Shijiazhuang, Hebei, 050031)

机构地区：[1]河北工业职业技术学院汽车工程系,河北石家庄050031 [2]河钢集团石钢公司,河北石家庄050031

出　　处：《河北冶金》2017年第9期30-33,共4页Hebei Metallurgy

摘　　要：采用金相显微镜和扫描电子显微镜,对杀车活塞零件磷皂化过程中的显微组织和缺陷处的化学成分进行了分析。结果表明:杀车活塞零件孔洞边缘脱碳层比较明显,并且铁素体晶粒比较粗大,中心孔洞应为连铸坯缩孔轧制未焊合所致,与磷皂化过程无关。The microstructure and the chemical composition of the defects of brake piston parts in the process of phosphorus saponification were analyzed by means of metallographic microscope and scanning electron microscope. The results show that the decarburization is more obvious in the marginal of hole in brake piston parts ferrite grains is coarce; the center hole comes from unbinding shrinkage rolling of CC bloom,irrelevant to phosphorus saponification.

关 键 词：磷皂化 组织 中心孔洞 

分 类 号：TG142.1[一般工业技术—材料科学与工程]