A self-sacrifice type metal corrosion inhibitor and a metal corrosion inhibiting method
申请人:Institute of Technology Precision Electrical Discharge Works
公开号:EP1125988A2
公开(公告)日:2001-08-22
A self-sacrifice type metal corrosion inhibitor and a metal corrosion inhibiting method are provided in the present invention. Said self-sacrifice type metal corrosion inhibitor comprises one or more kind(s) of metal powder having a greater ionization tendency than that of a metal to be treated, water insoluble thermoplastic resin powder, water soluble anticorrosion agent, surface active agent, thickener, and water. Said metal corrosion inhibiting method comprises preparing a treatment solution by dispersing said metal powder having a greater ionization tendency than that of said metal to be treated and said water insoluble thermoplastic resin powder in water containing said water soluble anticorrosion agent, said surface active agent and said thickener, adhering said treatment solution to the surface of said metal to be treated, heating said metal to be treated to melt said thermoplastic resin powder and form a thermoplastic resin layer fixed on the surface of said metal to be treated, and forming a metal corrosion inhibiting layer on the surface of said metal to be treated by fixing said metal powder on the surface of said metal to be treated through said thermoplastic resin layer as an adhesive layer.
本发明提供了一种自牺牲型金属缓蚀剂和一种金属缓蚀方法。所述自牺牲型金属缓蚀剂包括一种或多种电离倾向大于待处理金属的金属粉末、不溶于水的热塑性树脂粉末、水溶性防腐剂、表面活性剂、增稠剂和水。所述金属缓蚀方法包括:在含有水溶性防腐剂、表面活性剂和增稠剂的水中分散电离倾向大于待处理金属的金属粉末和水不溶性热塑性树脂粉末,制备处理溶液,将处理溶液粘附到待处理金属的表面、加热所述待处理金属,使所述热塑性树脂粉末熔化,形成固定在所述待处理金属表面的热塑性树脂层,并通过所述热塑性树脂层作为粘合层将所述金属粉末固定在所述待处理金属表面,从而在所述待处理金属表面形成金属缓蚀层。