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Method for removing rust on steel surface

A steel surface, rust technology, applied in the direction of cleaning methods using liquids, chemical instruments and methods, cleaning methods and utensils, etc., can solve the problems of poor removal effect, rusting of steel, etc., to achieve rust removal and prevention rusty effect

Inactive Publication Date: 2017-12-12
河池桂嘉知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for removing rust on the surface of steel, which can solve the problem that the existing methods for removing rust on the surface of steel are not effective, and the steel after derusting treatment is prone to rust again

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1——the method for removing rust on steel surface

[0015] It includes the following steps:

[0016] A. Put the steel to be treated into the soaking solution I, and conduct it under the condition of ultrasonic power of 20W and ultrasonic frequency of 30KHz, and completely soak for 30min;

[0017] Wherein, the soaking solution I is made of the following raw materials in parts by weight: 4 parts of sodium dodecylbenzenesulfonate, 1 part of ethoxylated lauryl ether, 1 part of ethoxylated nonylphenol ether, glycolic acid 5 parts, sodium tripolyphosphate 5 parts, carboxyacetic acid 15 parts and water 50 parts;

[0018] B. Take out the steel that has been soaked in step A, wipe off the surface moisture, and then cool it to 5°C, and then completely soak it in the soaking solution II at 50°C. Treat for 10 minutes;

[0019] Wherein, the soaking solution II is made of the following raw materials in parts by weight: 1 part of vinyltriamine, 8 parts of ethylene glyco...

Embodiment 2

[0021] Embodiment 2——the method for removing rust on steel surface

[0022] It includes the following steps:

[0023] A. Put the steel to be treated into the soaking solution Ⅰ, and conduct it under the ultrasonic conditions of ultrasonic power of 30W and ultrasonic frequency of 40KHz, and completely soak for 60min;

[0024] Wherein, the soaking solution I is made of the following raw materials in parts by weight: 6 parts of sodium dodecylbenzenesulfonate, 3 parts of ethoxylated lauryl ether, 5 parts of ethoxylated nonylphenol ether, glycolic acid 10 parts, 8 parts of sodium tripolyphosphate, 20 parts of carboxyacetic acid and 75 parts of water;

[0025] B. Take out the steel that has been soaked in step A, wipe off the moisture on its surface, and then cool it to 10°C, then completely soak it in the soaking solution II at 60°C, and put it under the condition of ultrasonic power of 95W and ultrasonic frequency of 75KHz. Treat for 15 minutes;

[0026] Wherein, the soaking ...

Embodiment 3

[0028] Embodiment 3——the method for removing rust on steel surface

[0029] It includes the following steps:

[0030] A. Put the steel to be treated into the soaking solution Ⅰ, and conduct it under the ultrasonic conditions of ultrasonic power of 28W and ultrasonic frequency of 36KHz, and completely soak for 45min;

[0031] Wherein, the soaking solution I is made of the following raw materials in parts by weight: 5 parts of sodium dodecylbenzenesulfonate, 2 parts of ethoxylated lauryl ether, 4 parts of ethoxylated nonylphenol ether, glycolic acid 9 parts, 6 parts of sodium tripolyphosphate, 18 parts of carboxyacetic acid and 65 parts of water;

[0032] B. Take out the steel that has been soaked in step A, wipe off the moisture on its surface, and then cool it to 9°C, and then completely soak it in the soaking solution II at 55°C. Treat for 12 minutes;

[0033] Wherein, the soaking solution II is made of the following raw materials in parts by weight: 4 parts of vinyltria...

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Abstract

The invention discloses a method for removing rust on a steel surface. The method comprises the steps that to-be-treated steel is placed into a soak solution I, and soaking is carried out under specific ultrasonic wave conditions; the soak solution I is prepared from the following raw materials including sodium dodecyl benzene sulfonate, ethoxy lauryl alcohol, ethoxy nonylphenol ether, glycolic acid, sodium tripolyphosphate, hyclroxy acetic acid and water; the steel is taken out, cooled and soaked into a soak solution II, and soaking is carried out under specific ultrasonic wave conditions; and the soak solution II is prepared from the following raw materials including vinyl triamine, ethylene glycol, modified silicon resin, acrylate emulsion, phosphoric acid, zinc oxide, sodium dichromate, nitric acid and water. According to the method, ultrasound treatment is carried out according to the ingredients of the soak solution I under the specific ultrasonic wave power and frequency, the principle of thermal expansion and cold contraction is used, treatment is carried out according to the ingredients of the soak solution II under the specific ultrasonic wave power and frequency, the aim of removing rust is achieved, and rust can be effectively prevented from being generated on the steel surface.

Description

technical field [0001] The invention relates to the technical field of metal surfaces, in particular to a method for removing rust on steel surfaces. Background technique [0002] Rust is a chemical reaction, essentially the oxidation of metals. The most common rusting phenomenon is that iron products are exposed to air for a long time and undergo oxidation reactions with oxygen, or are corroded by oxygen elements in water to become oxides. Iron rust is a kind of brownish-red material, it is not so hard as iron, it is easy to fall off, after a piece of iron gets rusty completely, its volume can expand by 8 times. If rust is not removed, this spongy rust is especially good at absorbing water, and iron will rust faster. [0003] However, there are many methods for removing the rust on the steel surface at present, but the removal effect is not good, and the iron and steel after the rust removal process is prone to rust again. Contents of the invention [0004] The inventi...

Claims

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Application Information

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IPC IPC(8): C23G1/08B08B3/12
CPCC23G1/085B08B3/12C23G1/088
Inventor 黄丽萍
Owner 河池桂嘉知识产权服务有限公司
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