包装钢带断裂原因分析及改进措施

Breaking reason analysis and improvement measures of steel package strip

包装钢带在打包后或运输过程中发生断带,造成线材产品散包。通过宏观检验、断口分析、化学成分分析、金相检验、力学性能检验,对钢带断带原因进行了分析。结果表明,钢带生产过程中加热温度低,导致屈强比高,缺口敏感性大是造成钢带打包后断带的主要原因。根据分析结果,提高了钢带加热温度,降低了钢带的屈强比,消除了断带问题。

Steel package strip breaks after packaging and during transportation,causes wire rod products package collapse.Through macroscopic inspection,fracture analysis,chemical composition analysis,metallographic examination and mechanical property examination,the reasons of the strip breakage were analyzed.The result shows that the low heating temperature during strip production process,caused high yield ratio and high notch sensibility was the main reason for the breakage of the strip after packaging.According to the analysis results,the heating temperature was increased,and the yield ratio was decreased,the breakage of package strip was eliminated.