A kind of water-based antirust agent and preparation method thereof

Abstract

The invention provides a water-base antirust agent and a preparation method thereof. The water-base antirust agent is prepared from the following components in percentage by weight: 7-9% of urea, 5-7% of urotropin, 4-6% of hydroxyl ethylidene diphosphonate, 1.5-2.5% of ethylenediamine tetraacetic acid tetrasodium salt, 5-8% of cationic surface active agent composition, 5-8% of tetrahydroglyoxaline, 0.2-0.5% of methyl benzotriazole and the balance of deionized water, totaling 100%. The water-base antirust agent provided by the invention fills in the blank in the process that products such as iron parts and components are firstly subjected to rust prevention by using a water-base antirust agent after oil stain removal and cleaning and before painting and then directly painted. After being treated by using the water-base antirust agent, the products can be directly painted, so that the parkerizing step is avoided. The water-base antirust agent does not contain strong acid salt and is simple in preparation process, low in cost, free of odor and good in effect. The discharged substances do not cause environmental pollution.

Description

Technical field: [0001] The invention relates to an antirust agent and a preparation method thereof, in particular to a water-based antirust agent and a preparation method thereof. Background technique: [0002] At present, in the iron and steel products or steel products produced by iron and steel, it is necessary to degrease or decontaminate the steel and metal parts, and then enter the next process, especially if the steel and metal parts need to be painted. After degreasing, descaling and stain cleaning treatment, phosphating treatment process is required before the traditional painting treatment process, so as to ensure the painting effect of steel products. [0003] On the other hand, at present, when the phosphating treatment process of steel products before painting is carried out on the market, the phosphating reagents used generally contain strong salts, such as chromate, borite, nitrite, phosphate, etc. . The use of these phosphating reagents is highly corrosive...

AI Technical Summary

Problems solved by technology

The use of these phosphating reagents is highly corrosive to the finished product on the one hand, and the waste water and waste discharged after phosphating treatment will pollute the environment

And it increases the labor intensity of workers and adds a production process, which also increases the production cost of the product.

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