Metal corrosion inhibitor and preparation method thereof

Abstract

The invention relates to a metal corrosion inhibitor. The metal corrosion inhibitor is prepared from the following raw materials in parts by weight: 15 to 25 parts of sodium tungstate, 40 to 60 parts of ethylene glycol, 7 to 15 parts of ethyl alcohol, 4 to 9 parts of ammonium citrate, 40 to 60 parts of zirconium carbonate, and 250 to 350 parts of water. A preparation method comprises the following steps of adding water into a glass container, adding the sodium tungstate to stir for dissolving, sequentially adding the ethylene glycol, the ethyl alcohol, the ammonium citrate and the zirconium carbonate, stirring, and dissolving, so as to obtain the metal corrosion inhibitor. The metal corrosion inhibitor has the advantages that water washing after use is not needed, paint can be directly painted, the foaming, falling and the like of the paint are avoided, and the adhesion force of a paint film reaches level 0.

Description

technical field [0001] The invention belongs to the technical field of metal corrosion inhibition, and in particular relates to a metal corrosion inhibitor and a preparation method thereof. Background technique [0002] General construction machinery parts must be cleaned and then painted before assembly. The heavy oil and heavy dirt on the surface of these parts are dry and hard to remove. At this time, general construction machinery manufacturers use shot peening and sand blasting to remove the grease on the surface, and then use special metal corrosion inhibitors for degreasing and antirust treatment, without washing, and spray paint directly after drying. [0003] Generally, metal corrosion inhibitors or antirust agents on the market can also be used for antirust treatment, but their compatibility with paint is poor. Spraying paint directly without washing after antirust treatment will cause the paint to foam and fall off. Contents of the invention [0004] One of th...

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Problems solved by technology

[0003] Generally, metal corrosion inhibitors or antirust agents on the market can also be used for antirust treatment, but they are not compatible with paint. Spraying paint directly without washing after antirust treatment will cause paint blistering and peeling off