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Rust remover for mechanical equipment

A technology of mechanical equipment and derusting agent, which is applied in the field of mechanical equipment derusting agent, can solve the problems of many processes, unsafe use, damage to clothes, etc., and achieve the effect of simple process and good derusting effect

Inactive Publication Date: 2016-03-23
TONGLING JINLI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To remove them, people now often use a mixture of various strong acids or alkalis to clean them. After cleaning, they need to be phosphating, which is time-consuming and labor-intensive.
This kind of substance will not only corrode the skin, damage the clothes, but also emit an unbearable and strong irritating smell, which is harmful to human health, very unsafe to use, brings great inconvenience to the operators, and seriously pollutes the environment. Caused severe corrosion to boilers, pipes themselves, reducing their reuse rate

Method used

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Embodiment Construction

[0010] A kind of mechanical equipment derusting agent, comprises following components, all are weight percentages:

[0011] Ammonium sulfamic acid 40-65%, sulfuric acid 1%, ammonium hydrogen fluoride 0-5%, phosphoric acid 20-35%, edetate disodium 0.5-2.0%, calcium hypophosphite 0.05-0.5%, hexamethylene tetra Amine 0.5-2%, copper salt 0-0.2%, sodium dodecylbenzenesulfonate 5-15%, cocoamide monoethanolamine 0-0.4% 、 Isothiazolinone 0-0.3%, chromic anhydride 15%;

[0012] The rust removal steps are as follows: the pipeline equipment to be treated is sprayed or soaked with a solution of 5.0-8.0% by weight of the anti-corrosion and rust remover of the present invention at room temperature, and the degreasing and rust removal of the pipeline equipment can be completed for 30-50 minutes and phosphating;

[0013] Small workpieces can be directly soaked in the solution of 5.0-8.0% by weight of the anti-corrosion and derusting agent of the present invention, and can be taken out after...

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PUM

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Abstract

The invention discloses a rust remover for mechanical equipment. The rust remover comprises, by weight, 40%-65% of sulfamic acid, 1% of sulfuric acid, 0%-5% of ammonium bifluoride, 20%-35% of phosphoric acid, 0.5%-2.0% of ethylene diamine tetraacetic acid, 0.05%-0.5% of calcium hypophosphite, 0.5%-2.0% of hexamethylenetetramine, 0%-0.2% of copper salt, 5%-15% of sodium dodecyl benzene sulfonate, 0%-0.4% of coconut acyl monoethanolamine, 0%-0.3% of isothiazolinone, and 15% of chromic anhydride. According to the rust remover for the mechanical equipment, the process is simple, the shape, the surface gloss and the precision degree of the mechanical equipment are free of any influence, and the rust removing effect is good.

Description

technical field [0001] The invention relates to a rust remover for mechanical equipment. Background technique [0002] Boilers and piping equipment made of steel will form scale on the surface when they are in contact with water and heated for a long time. The existence of scale will seriously affect the heat transfer efficiency of the boiler, and the water delivery system of the pipeline will also reduce the water delivery efficiency due to internal scaling. In severe cases, it will cause the boiler and pipeline to explode, so they need to be cleaned after a period of use. [0003] This kind of scale is impure substances in water such as calcium, magnesium, aluminum, silicon dioxide and iron rust, as well as ionic dissolved substances or suspended substances, etc., which are crystallized and precipitated by environmental changes such as pH, temperature, flow rate, concentration, dissolved gas, etc. Substances attached to the inner walls of transmission devices such as pi...

Claims

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Application Information

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IPC IPC(8): C23G1/06C23G1/08
CPCC23G1/088C23G1/068
Inventor 凌巧钱胜利
Owner TONGLING JINLI ELECTRONICS
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