发动机用耐高温铝粉涂料的制备

Preparation of High Temperature Resistant Aluminum Coatings for the Engine

针对发动机高温钢部件的需求,制备了一种耐高温铝粉涂料。研究了环氧改性有机硅树脂、铝粉浆和助剂的选择与配比对涂料性能的影响,并确定了涂料的最佳配方。性能检测结果表明,涂层的附着力达1级,耐温性达300℃,铅笔硬度达4H,耐盐雾性达2 000 h以上,耐湿热性达1 000 h以上,且涂层的力学性能良好。该涂料已应用于某高强钢制造的发动机部件,防护效果良好。

A high temperature resistant aluminum coatings for steel parts of the engine was prepared. The effects of the ingredients, including epoxy-modified silicon resin, aluminum paste and additives proportion on the performance of coatings were studied. The results of performance test showed be up to 300℃, pencil hardness reached 4H, the salt fog resistance was more than 2000 h, resistance was more than 1 000 h, meanwhile the coating had excellent mechanics properties. engine parts with high strength steel and showing a good protection effect. , their selection and that the coating could the heat and humidity It has been applied to