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研究了膏剂法渗铝中渗剂的配比、渗铝时加热温度和保温时间以及粘结剂的类型对Ｑ２３５钢表面渗铝层的组织和抗高温氧化性能的影响．结果表明:膏剂法渗铝时,随渗剂配比中铝粉含量的增加,渗铝层深度增加;但当铝粉含量达到３５%时,表面粘铝现象较严重．因此铝粉的含量最好是在２０%~３０%范围内．而且渗铝时加热温度越高,保温时间越长,渗铝层深度越深．粘结剂的酸碱性也对试样表面渗铝层的深度有影响,采用的粘结剂最好为中性的聚乙烯醇．不沦是伺种渗剂配比,渗铝后其试样的抗氧化能力均比未处理的高．并且渗剂配比中铝粉含量越高,其抗氧化能力就越高．
The effects of the proportion of penetration agent in aluminizing, the heating temperature and holding time during aluminizing and the type of binder on the microstructure and high temperature oxidation resistance of the aluminized layer on Q235 steel were studied. The results show that when aluminizing, the depth of aluminizing layer increases with the increasing of the content of aluminum powder in the proportioning agent. However, when the content of aluminum powder reaches 35%, the phenomenon of surface sticking aluminum is more serious. Therefore, the content of aluminum powder is preferably in the range of 20% to 30%. And when aluminizing the heating temperature is higher, the longer the holding time, the deeper the aluminized layer depth. The pH of the binder also affects the depth of the aluminized layer on the surface of the sample. The binder used is preferably a neutral polyvinyl alcohol. Serve without penetration is the kind of penetration agent ratio, after the aluminum coating its antioxidant capacity than untreated. And the penetration of the proportion of aluminum powder content is higher, the higher its antioxidant capacity.