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Cr-Ni轻型气瓶旋压收口金属脱落原因分析 被引量:4

Investigation of Causes for Metal Shedding during Neck-spinning of Cr-Ni Light Gas Cylinder
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摘要 利用金相显微镜、扫描电镜及能谱分析等手段,分析了Cr-Ni气瓶用无缝钢管在中频感应加热旋压收口过程中产生金属脱落缺陷的原因。结果表明:金属脱落是由于钢管过烧所致。制瓶厂家在收口过程中,采用中频感应加热及三轴联动旋压收口时加热温度过高、形变速度过大,机械能转化为热能致使局部温度上升至液相点以上,导致形变过烧。 Causes for metal shedding as a defect occurring during medium frequency induction heating & neck- spinning process of the Cr-Ni light gas cylinder are analyzed by means of metallographic microscope, scanning electron microscope and energy spectrum analysis etc. As a result, it is revealed that it is over burning of the tube that leads to metal shedding thereof. Since the manufacturer normally employs medium frequency induction heating and 3-shaft-linkage spinning processes for neck-spinning of the gas cylinder, over-high temperature, and over-high deformation velocity that gets mechanical energy transform into thermal energy so as to get the temperature of some areas of the work piece rising up above the liquid phase point, and thus eventually cause the deformation over-burning of the metal.
出处 《钢管》 CAS 2015年第3期44-47,共4页 Steel Pipe
关键词 无缝钢管 气瓶 Cr—Ni钢 金属脱落 三轴联动旋压 形变过烧 seamless steel tube gas cylinder Cr-Ni steel metal shedding 3-shaft-linkage spinning defor-mation over-burning
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