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《Shanghai Coatings》 2016-02
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Solving the Problems of Pre-drying“Black Spots”in the Painting Workshop Based on the A3 Thinking

Li Zhijie;Wang Mingxing;Xue Mingying;Gao Haijun;Wang Aijun;Zhang Lei;Technology Center of Great Wall Motor Company Limited,Hebei Automotive Engineering and Technology Research Center;  
The problem background of"black spots"appeared in the spray room of painting workshop and the solving target were introduced. Through analyzing the type and number of"black spots"in the spray room by A3 thinking,the problem status was described and key point affecting quality was found by drawing histogram(contrast)and Pareto char(t80/20 principle). The true causes of appearing"black spots"were obtained by"5 why"true cause analysis. On this basis,the plans of replacing pre-drying heating furnace material in the spray room,increasing sealing and filtering of air inlet were proposed. And finally,the problem of pre-drying"black spots"in the painting workshop was solved.
【CateGory Index】: TQ639.8
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