99热这里-欧亚av-色先锋av-国产草逼视频-91在线亚洲-成人性生活免费视频-午夜影院污-樱桃香蕉视频-精品久久久一区-男人天堂亚洲天堂-国产美女视频一区-欧美一级性片-av在线色-99r在线视频-一区二区的视频

全國(guó)熱線服務(wù):

News 當(dāng)前位置:首頁(yè) > News > News >

How to solve the problem of surface decarburization of high-precision cold drawn tubes

    Under normal circumstances, when decarburization occurs on the surface of cold-drawn tubes, it is because the steel wire comes into contact with the air when molten lead, causing decarburization and oxidation to occur at the same time. This is mainly because the solid solution carbon in the iron comes into contact with gases such as water vapor, oxygen, and carbon dioxide in the air, resulting in severe decarburization on the surface of cold-drawn tubes. There are two ways to solve the problem of decarburization on the surface of cold-drawn tubes.


   
    1. The air and atmosphere in the furnace can be controlled more purposefully to keep it in a restorative state, which can effectively prevent decarburization on the surface of cold drawn tubes;
   2. Inject or blow an appropriate amount of neutral protective nitrogen directly into the furnace. Nitrogen can dispel the oxidizing atmosphere in certain sections while preventing air from penetrating deep, reducing or avoiding decarbonization problems.

上一篇:What is the minimum diameter of the smallest high-precision rolled tube that can be produced?

下一篇:Layout requirements for honing tubes