Q235钢SiO_2基热化学反应陶瓷涂层耐磨性研究

Study on Wear Resistance of SiO_2-based Ceramic Coating Prepared by Thermal Chemical Reaction Method on Q235 Steel

研究了热化学反应法制备陶瓷涂层的配方以及所获得陶瓷涂层的组织结构和耐腐蚀性能。结果表明:骨料与胶粘剂质量比为1∶1时,经过600℃固化后微米及含30%纳米SiO2的陶瓷涂层均生成了新物质,具有良好的致密性和结合强度;在耐磨实验中,微米陶瓷涂层相对于基体的磨粒磨损和粘着磨损的相对耐磨性分别提高1.12倍和0.99倍;含30%纳米SiO2的陶瓷涂层相对于基体的磨粒磨损和粘着磨损的相对耐磨性分别提高1.89倍和2.03倍。

The formulations and the microstructure and wear resistance of SiO2-based ceramic coating prepared by thermal chemical reaction method were studied. The results show that the new substances are generated in both micron and 30% nano-SiO2 ceramic coating, when the mass ratio of aggregate and adhesive is 1：1, curing at 600℃, theft density and intensity are good. In wearable experiment, the relative wear resistance of abrasive wear and adhesive wear of micron ceramic coating increases by 1.12 and 0.99 times respectively compared with matrix; The relative wear resistance of abrasive wear and adhesive wear of 30% nano-SiO2 ceramic coating increases by 1.89 and 2.03 times respectively compared with matrix.