Abstract:
PDCA Circulation （Plan, Do, Check, Action） is applied in quality-control management during the welding process of Titanium alloy steam generator pipe. The weld defects is controlled effectively and the ratio of certified weld rose steadily, which achieve its target（ 90%）. Experiments and engineering application show that, if the process-control could be carried out according to the PDCA circulation, activity which affect quality could be ensured to be controlled effectively without being omitted, and finally, steadily and dependable manufacture technics could be formed so that the quality of products can be improved perpetually.
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