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Phosphating agent mixed with hydrochloric acid for use

A technology of phosphating agent and hydrochloric acid, applied in the field of phosphating agent, can solve the problems of large water consumption, unfavorable packaging, storage and transportation, etc., and achieve the effects of low production and use costs, convenient packaging, storage and transportation, and simple process

Inactive Publication Date: 2020-08-07
黄祥毛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of dry packing powder phosphating agent, especially a kind of phosphating agent mixed with hydrochloric acid, to overcome the existence of existing tank liquid phosphating agent mixed with hydrochloric acid. The process consumes a lot of water resources and is not conducive to the disadvantages of packaging, storage and transportation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Principle of the present invention will be further described below in conjunction with embodiment:

[0011] A kind of phosphating agent mixed with hydrochloric acid of the present invention consists of 1 liter of hydrochloric acid solution with a concentration of more than 17%, 30 to 50 grams of Maziv salt, 20 to 30 grams of zinc nitrate or zinc flakes, 10 grams of nickel nitrate or chromium powder, 25 to 50 grams of phosphate and 30 grams of sodium molybdate, they are stirred in the phosphate solution, carry out chemical reaction treatment, and then, make a kind of phosphating agent that is mixed with hydrochloric acid for dry packing powder.

[0012] The phosphating agent used in combination with hydrochloric acid does not add any water during the chemical reaction and the process of making finished products.

[0013] The technological process of phosphating metals such as iron and steel by the present invention is: degreasing metal workpieces such as iron and steel -...

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PUM

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Abstract

The invention discloses a phosphating agent mixed with hydrochloric acid for use. The phosphating agent is composed of 1 l of a hydrochloric acid solution with the concentration being 17% or above, 30-50 g of manganese dihydrogen phosphate, 20-30 g of zinc nitrate or zinc sheets, 10 g of nickel nitrate or chromium powder, 25-50 g of phosphate and 30 g of sodium molybdate. The substances are stirred in a phosphate solution and chemically react, and then the phosphating agent which is dry powder mixed with the hydrochloric acid for use is prepared. The phosphating agent effectively provides phosphate rust protection and corrosion protection for metal such as steel and iron. By using the phosphating agent, in the phosphating process, the working procedure is simple, the work efficiency is improved, the production cost is reduced, a large quantity of water resources are saved, and packaging, storage and transportation are further facilitated.

Description

technical field [0001] The invention relates to a phosphating agent mixed with hydrochloric acid. Background technique [0002] Phosphating refers to putting metals such as iron and steel into a phosphate solution containing manganese, iron, and zinc for chemical treatment, so that a layer of phosphate that is insoluble in water is formed on the metal surface to prevent rust and corrosion. It is a process in which chemical and electrochemical reactions form a phosphate chemical conversion film. The formed phosphate conversion film is called a phosphating film and an anti-rust film. The main function of phosphating is: to provide anti-rust protection for the base metal, to prevent the metal from being corroded to a certain extent; it is used as a primer before painting to improve the adhesion and anti-corrosion ability of the paint film layer. [0003] The current phosphating operation is: degreasing steel and other metal workpieces—washing—derusting and activating with hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/42
CPCC23C22/42
Inventor 黄祥毛
Owner 黄祥毛