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一个时期以来 ,用Q2 35F钢种生产的圆钢抗拉强度偏低 ,给包钢公司带来了一定损失。通过跟踪试验的方法 ,分析了造成抗拉强度偏低的原因 ,提出了改进措施。
For a long time, the round bar produced with Q235F steel had a low tensile strength, which brought certain losses to Baotou Steel Company. Through the method of tracking test, the reason of low tensile strength is analyzed and the improvement measures are put forward.