通过宏观检验、化学成分分析、金相组织检验、残余应力试验以及电镜微观分析等方法对卫浴黄铜管开裂原因进行。分析结果表明,由于卫浴黄铜管去应力退火不良,加上后期酸洗过程中未冲洗干净,残留部分酸洗液,在应力和腐蚀介质的共同作用下,造成卫浴黄铜管的应力腐蚀开裂。 Through the macroscopic examination, the chemical composition analysis, the metallographic examination, the residual stress test as well as the electron microscope microscopic analysis and so on the brass metal pipe brass cracking reason. Analysis results show that due to poor brass bath annealed to poor annealing, coupled with the latter part of the pickling process is not rinsed clean, the residual part of the pickling solution, under the combined effect of stress and corrosion medium, resulting in brass bath brass stress corrosion cracking .