降低热喷涂涂层孔隙率的方法  

A METHOD TO DECREASE THE POROSITY OF THERMAL SPRAY COATING

作　　者：刘美淋[1] 孙宏飞[1] 于惠博[1] 武彬[1] 

机构地区：[1]山东科技大学材料科学与工程学院,青岛266510

出　　处：《腐蚀与防护》2007年第4期171-173,共3页Corrosion & Protection

摘　　要：热喷涂的工作原理决定了其涂层孔隙是不可避免的。当涂层用于防腐蚀时,腐蚀介质会通过孔隙到达基体表面,从而造成防护失败。因此,封孔处理是提高涂层防腐蚀性能的重要途径。本文总结了涂层封孔处理的方法,对未来涂层封孔技术进行了展望,并提出一种新的涂层封孔剂——釉。It is inevitable for the thermal spray coating to avoid porosity due to the working principium of the thermal spray. When the coating is used to prevent corrosion, the corrosive medium will get to the surface of the base through the pores and result in invalid corrosion protection. Therefore, it is important for the coating to seal the porosity for the increase of the corrosion resistance. The ways to decrease the coating porosity are summarized. An expectation of the sealing technology and a new type of the sealing material, glaze, are presented.

关 键 词：热喷涂 孔隙率 封孔 釉 

分 类 号：TG174.44[金属学及工艺—金属表面处理]