Oil and rust remover for metal surface

A metal surface and rust remover technology, applied in the field of cleaning agents, can solve problems such as corrosion of equipment and the environment, easy formation of acid mist, and increased costs, so as to avoid oxidative corrosion, inhibit the corrosion process, and reduce the effect of corrosion

Pending Publication Date: 2019-08-23
陈团英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional acid treatment method also has obvious defects: that is, the generation of a large amount of hydrogen during the treatment process will cause hydrogen embrittlement of the steel and affect the strength of the steel itself; at the same time, it is easy to form acid mist, which will affect the health of the operator and corrode the surrounding area. equipment and environment
The existing derusting liquid generally has the disadvantages of poor effect and long derusting time
In addition, in the prior art, the degreasing and derusting of the metal surface are carried out in sections: degreasing in the lye first, and then derusting in the acid solution, which increases the steps of the process and increases the cost

Method used

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  • Oil and rust remover for metal surface
  • Oil and rust remover for metal surface
  • Oil and rust remover for metal surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A metal surface degreasing and rust removing agent, which is prepared from the following raw materials in parts by weight, 2 parts of hydrochloric acid, 3 parts of oxalic acid, 2 parts of citric acid, 3 parts of ascorbic acid, 3 parts of complexing agent, 2 parts of Corrosion inhibitor, 2 parts of penetration enhancer, 2 parts of surfactant, 50 parts of water;

[0038] Wherein, the oil and rust remover is prepared through the following steps:

[0039] Step 1. Add 400mL of water to the reaction kettle 11 of the filling equipment, and then slowly heat up the heating element 1107 to 30°C. At this time, drive the rotating motor 1102 to start stirring, and add the corrosion inhibitor while stirring, and stir for 10 Minutes to fully dissolve;

[0040] Step 2, add sodium dodecylsulfonate and sodium dodecylbenzenesulfonate to step 1, stir and mix for 5 minutes to make it all dissolve, then slowly add dissolved hydrochloric acid, oxalic acid, citric acid and ascorbic acid, Mak...

Embodiment 2

[0047] A metal surface degreasing and rust removing agent, which is prepared from the following raw materials in parts by weight, 4 parts of hydrochloric acid, 6 parts of oxalic acid, 4 parts of citric acid, 5 parts of ascorbic acid, 6 parts of complexing agent, 5 parts of Corrosion inhibitor, 4 parts of penetration enhancer, 6 parts of surfactant, 90 parts of water;

[0048] Wherein, the oil and rust remover is prepared through the following steps:

[0049] Step 1. Add 400mL of water to the reaction kettle 11 of the filling equipment, and then slowly heat up the heating element 1107 to 50°C. At this time, drive the rotating motor 1102 to start stirring, and add the corrosion inhibitor while stirring, and stir for 15 Minutes to fully dissolve;

[0050] Step 2, add sodium dodecylsulfonate and sodium dodecylbenzenesulfonate to step 1, stir and mix for 10 minutes, make it completely dissolved, then slowly add dissolved hydrochloric acid, oxalic acid, citric acid and ascorbic aci...

Embodiment 3

[0057] A metal surface degreasing and rust removing agent, which is prepared from the following raw materials in parts by weight, 2 parts of hydrochloric acid, 6 parts of oxalic acid, 2 parts of citric acid, 5 parts of ascorbic acid, 3 parts of complexing agent, 5 parts of Corrosion inhibitor, 2 parts of penetration enhancer, 6 parts of surfactant, 50 parts of water;

[0058] Wherein, the oil and rust remover is prepared through the following steps:

[0059] Step 1. Add 400mL of water to the reaction kettle 11 of the filling equipment, and then slowly heat up the heating element 1107 to 30°C. At this time, drive the rotating motor 1102 to start stirring, and add the corrosion inhibitor while stirring, and stir for 15 Minutes to fully dissolve;

[0060] Step 2, add sodium dodecylsulfonate and sodium dodecylbenzenesulfonate to step 1, stir and mix for 10 minutes, make it completely dissolved, then slowly add dissolved hydrochloric acid, oxalic acid, citric acid and ascorbic aci...

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PUM

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Abstract

The invention discloses an oil and rust remover for a metal surface. The oil and rust remover is prepared from the following raw materials in parts by weight: 2-4 parts of hydrochloric acid, 3-6 partsof oxalic acid, 2-4 parts of citric acid, 3-5 parts of ascorbic acid, 3-6 parts of a complexing agent, 2-5 parts of a corrosion inhibitor, 2-4 parts of a permeability increasing agent, 2-6 parts of asurfactant and 50-90 parts of water, wherein the oil and rust remover is prepared from the following steps: S1, adding 400 mL of water into a reaction kettle of filling equipment; then slowly heatingthe solution to 30-50 DEG C by a heating element; and at the moment, driving a rotating motor to start to stir, adding the corrosion inhibitor while stirring, and stirring the solution for 10-15 minand fully dissolving the solution. The prepared oil and rust remover for the metal surface has the functions of deoiling, disacidifying, inhibiting corrosion and preventing oxidization. The rust removal time for light rust is about 2 min and the rust removal time for heavy rust is 5-6 min, and the deoiling rate can reach over 98%.

Description

technical field [0001] The invention relates to the technical field of cleaning agents, in particular to a metal surface degreasing and derusting agent. Background technique [0002] Rust removal treatment is the basic process before steel surface painting. Rust removal methods can be roughly divided into three categories: mechanical, chemical and electrochemical methods, each of which has its own characteristics and is suitable for different occasions. Among them, the chemical method has a series of advantages such as good effect, high efficiency, simple process operation, and low cost, so it has been widely used in industry. However, the traditional acid treatment method also has obvious defects: that is, the generation of a large amount of hydrogen during the treatment process will cause hydrogen embrittlement of the steel and affect the strength of the steel itself; at the same time, it is easy to form acid mist, which will affect the health of the operator and corrode ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/08C23G1/06
CPCC23G1/068C23G1/088
Inventor 陈团英
Owner 陈团英
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