目前,有一种在不锈钢管内套置碳素钢管的不锈钢复合管,其制造方法是,用普通的不锈钢焊管作坯管,将未经任何处理的普通的碳素钢管,套入未经处理的不锈钢焊管,然后用冷拔轧制机进行冷挤压,使不锈钢管内侧面贴合在碳素钢管外侧面上,两者机械地结合在一起,形成内为碳素钢管,外为不锈钢管的 At present, there is a stainless steel tube set carbon steel tube stainless steel clad pipe, and its manufacturing method is to use ordinary stainless steel welded pipe as a blank tube, without any treatment of ordinary carbon steel pipe, set into untreated stainless steel Welded pipe, and then cold-drawn cold rolling machine, so that the inner surface of the stainless steel pipe bonded to the outer side of the carbon steel pipe, the two mechanically together to form the inner for the carbon steel pipe, the outer stainless steel pipe