摘要
为了解决阴极电泳涂装对磷化的特殊要求和磷化过程中的环境保护问题,研究出一种与阴极电泳涂装配套的磷化剂,优化并研制了新型复合有机促进剂,解决了传统的NaNO2促进剂对环境的污染问题;确定了酸度、温度等最佳工艺条件,测定了磷化膜的晶型结构和相关性能。结果表明,新型环保磷化剂磷化速度快、温度低、沉渣少、寿命长,所得磷化膜为颗粒状聚晶型体结构,膜薄而致密,耐碱性强,与阴极电泳涂装配套性能优异,涂层附着力强,耐腐蚀性能优异。
Phosphorizing agent was studied for cathodic electrophoresis coatings, and a new composite organic accelerant was developed to overcome the environmental pollution of conventional NaNO_2 accelerant. The optimal process conditions such as acidity and temperature were determined, and the crystalline structure and relevant properties of phosphorizing coating were tested. Results show that the environmental friendly phosphorizing agent has the characteristics of rapidly phosphorizing, low temperature, little sediment and long life. The phosphorizing coating is thin and compact with granule polyc～stalline structure, which has strong alkali proof and corrosion resistance and high adhesion, aside it is suitable for cathodic electrophoresis coating well.
出处
《材料保护》
CAS
CSCD
北大核心
2004年第1期14-16,共3页
Materials Protection
基金
上海市科学技术委员会科技发展基金项目(021111302)
关键词
磷化
阴极电泳涂装
促进剂
耐碱性
耐腐蚀性
环境保护
phosphorizing
cathodic electrophoresis coating
accelerant
alkali proof
corrosion resistance
environmental protection
