Hardware surface treatment process

Abstract

The invention discloses a hardware surface treatment process, including performing mechanical treatment and oil and rust removing treatment on the surface of a hardware base material, cleaning ultrasonically with anhydrous alcohol, drying, coating the surface of the hardware base material with a layer of TiAlSiN thin film by a vacuum coating method, subjecting the surface of the coating to ion nitriding through an arc ion nitriding method, and finally coating the surface with a graphene waterborne composite anti-corrosion coating and spraying the same with amino baking paint. Organosiloxane modified resin solution and ultrasonic-treated graphene-polypyrrole aqueous dispersion are mixed to prepare the anti-corrosion coating material, organosiloxane molecules can be used as coupling agents to be doped with the organic coating material to modify the same, thereby improving adherence force of the organic coating material to the metal base material, and further greatly improving protectiveproperty of the coating material; with adding of graphene, anti-corrosion property of the coating material is improved, so that the coating material has excellent aqueous dispersion stability; the hardware prepared with the coating has good wear resistance and high surface hardness.

Description

technical field [0001] The invention belongs to the technical field of hardware preparation, and more specifically relates to a hardware surface treatment process. Background technique [0002] Protecting hardware can not only reduce economic losses, but also save raw materials and avoid waste of resources. The protection methods of hardware materials mainly include external coating, electrochemical protection, electroplating, chemical plating and other methods. Organic coating is considered to be the most effective and direct method of hardware anticorrosion. Commonly used organic anticorrosion coatings are Epoxy resin coatings, polyurethane coatings, inorganic zinc-rich coatings, high-solid coatings, etc., have a simple coating process and can often be directly coated on the surface of hardware. After curing, a dense organic film can be obtained, and the organic film can isolate corrosive media. , to prevent its corrosion of metal and protect the hardware. [0003] Howev...

AI Technical Summary

Problems solved by technology

[0003] However, since the organic coating and the hardware base material belong to two types of materials with completely different properties, there are still many gaps after the organic coating is coated on the surface of the hardware, which will not only weaken the adhesion of the coating to the metal, but also weaken the Blocking effect on corrosive media

In addition, many anti-corrosion coatings, although they have excellent bonding properties, anti-corrosion properties and mechanical properties, etc., because the molecules contain some hydrophilic groups, they are easy to absorb water from the environment, so they show hydrophilicity, which leads to metal corrosion resistance. Reduced protection performance