固体渗铝新工艺的研究

A Research on Solid Aluminizing New Technique

以２∶１的氧化铝加木炭粉为填充剂，１０％铝粉为供铝剂，３％氯化铵为催渗剂，可使铝粉含量降到１０％的新型固体渗铝工艺，不仅能在钢铁表面获得厚而均匀的渗铝层，而且渗剂用后松散性好，试样表面光洁，不存在传统固体渗铝工艺的粘结问题，渗铝件的抗高温氧化性及耐蚀能力远远高于未渗件并可与不锈钢相媲美。

ake alumina with charcoal powder in the ratio of 2 to 1 as an interstitial agent, where 10% of aluminium powder is used as the feeding media, and 3% of ammonium chloride as catalytic agent. This new solid aluminizing technique can lower the content of the aluminium powder to 10%. The new process can not only present both thick and homogeneous aluminized layers on the iron and steel surface, but also leave catalytic agent porous enough after use, with a smoothly finished surface remaining on the test sample. There exists no problem about the binding or sticking commonly left by traditional solid aluminizing process. The aluminized elements have strong resistance to oxidation at high temperature, and can also resist heavy corroding with its ability being extremely higher than that in the element unaluminized. The aluminized pieces can be compared with those of stainless steels.