用LG55冷轧管机轧制小直径不锈钢管孔型改进
PASS MODIFICATION OF LG55 COLD-ROLLING PIPE MILL FOR MAKING SMALL-SIZED STAINLESS STEEL TUBES
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摘要: 介绍了LG55冷轧管机使用Φ7~32mm、Φ50~32mm孔型轧制小直径不锈钢管的工艺特点。试验表明,两种孔型可行,且Φ57~32mm孔型的综合使用效果更好。Abstract: The paper presents a description about the technological features of the process to produce small-sized stainless steel tubes by the LG55 cold-rolling pipe mill with Φ57-32mm/Φ50-32mm passes.The result of relevant trial operation shows that the said two pass ranges are effective,whereas the former seems to be more satisfactory in terms of comprehensive operational performance.