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钛虽然是一种很耐蚀的金属,但也并不是可以适用于一切腐蚀介质。钛与其它耐蚀金属一样,有它一定的适用范围。几年来,我国化工用钛陆续发生一些腐蚀事故,有些是由于设计不周,如钛列管湿氯气冷却器管板胀接处的隙缝腐蚀;有些是由于制造加工不慎,如焊缝严重氧化或铁沾污,使焊缝破裂或优先腐蚀;也有些是选材不当,如在干氯气和红烟硝酸中钛的着火等。以上腐蚀事故,国外也都有报道。只要我们充分了
Although titanium is a very corrosion-resistant metal, it is not suitable for all corrosive media. Titanium and other corrosion-resistant metal, it has a certain scope of application. In recent years, some corrosion accidents occurred in titanium chemical industry in our country. Some of them were due to poor design, such as the corrosion of slot joints at the titanium tube wet chlorine gas cooler tube expansion joints. Some were due to serious manufacturing and processing, Or iron contamination, so that the weld cracks or corrosion priority; some are improper materials, such as chlorine gas and red nitric acid in the fire of titanium and so on. The above corrosion accidents have also been reported abroad. As long as we are full