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                无缝钢管

                时间:2012-02-20 浏览:

                 


                冷拔(轧)无缝钢管:它们的生产工艺流程前三步基本相同.酸洗后,涂油.然后紧接着是经过多道次冷拔(冷轧)再坯管,专门【的热处理█.热处理后.

                冷拔(轧)无缝钢管:它们的生产工艺流程前三步基本相同.酸洗后,涂油.然后紧接着是经过多道次冷拔(冷轧)再坯管,专门的热处理.热处理后,就要被矫直↓.钢管经矫直后由传送带送至金属探伤机(或水压实验)进行内部探伤.若钢■管内部有裂纹,气泡等问题,不同之处从第四个步骤】开始,圆管坯经打空后,要打头,退火.退火后要用专门的酸性液体进行酸洗.将被探测出.钢管质检后还要通过严格的手工挑选.钢管质检后,用油漆喷上编号,规格,生产批号▲等.并由吊车吊入仓库中.圆管坯→加热→穿孔→打头→退火→酸洗→涂油(镀铜)→(探伤)→标记→入库.冷拔(轧)无缝钢管的轧制方法较热轧(挤压无缝钢管)复杂.多道次冷拔(冷轧)→坯管→热处理→矫直→水压试验.

                 


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