冷拔管坯打头砧模的改进
IMPROVEMENT ON ANVL FOR END-POINTING IN PIPE COLD-DRAWING PROCESS
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摘要: 简要分析了冷拔管坯打头时产生肩胛缺陷的原因,介绍了新结构的砧模。经实践验证,新结构的砧模可避免产生肩胛缺陷。Abstract: The article deals with a brief analysis concerning the elements responsble for the shoulder-like defect occuring in the course of end-pointing of cold-drawn pipe manufacre,and a description of the newly designed anvil with a different structure which has been proven via operation practice effective on eliminating the said defect.