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Oxy-acetylene Bead Welding of the Taper Face of the Valve Head of Diesel Engine

Yao Zhenggang  
n combination with the production practise ,this paper analyzes the effect of application of the imported oxy _ acetylene automatic bead welding technic from Japan,discusses concurrently from the design of the valve,the improvement of the structure,the selection of materials,and the optimizing of technology and proposes thereafter, the means of increasing the quality level,the service life,and the reliability of the valve to meet the high demand of the strengthened locomotive diesel engine.
【CateGory Index】: U464.172
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