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Rust remover and preparation method thereof

A rust remover and corrosion inhibitor technology, applied in the field of material chemistry, can solve the problems of rust remover environmental hazards, great safety hazards, etc., achieve good rust removal effect, prevent over-corrosion reaction, and improve the effect of rust resistance

Inactive Publication Date: 2021-03-02
佛山市顺德区美硕金属表面技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional rust removers are harmful to the environment and have great potential safety hazards

Method used

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Effect test

preparation example Construction

[0052] In addition, the present application also provides a preparation method of the above-mentioned rust remover, which may include, for example, the following steps: mixing the components according to the proportion.

[0053] In an optional embodiment, the organic acid salt is mixed with water first, and then the organic acid, fluoride salt, molybdate and corrosion inhibitor are added in sequence.

[0054] When the ingredients contain surfactants, the surfactants are added after the corrosion inhibitors, that is, the organic acid salts are mixed with water first, and then the organic acids, fluoride salts, molybdates, corrosion inhibitors, and surface active agents are added in sequence. active agent.

[0055] In a preferred embodiment, the feeding is carried out in such a way that the previous material is completely dissolved and then the next material is added.

[0056] The above preparation method is convenient to operate and suitable for industrial production.

[0057...

Embodiment 1

[0060] This embodiment provides a rust remover, specifically a neutral oil and rust remover, which is prepared by the following preparation method:

[0061] Add 100 parts of sodium citrate to 873 parts of water, stir and dissolve, add 10 parts of oxalic acid, stir and dissolve, add 5 parts of sodium fluoride, stir and dissolve, add 1 part of sodium molybdate, stir and dissolve, add 1 part The hexamethylenetetramine, after stirring and dissolving, add 10 parts of alkyl polyoxyethylene ether and stir evenly.

[0062] The application method of the above-mentioned neutral degreasing and rust removing agent: at normal temperature, soak the workpiece to be cleaned in the above neutral degreasing and rust removing agent until the surface oil and rust layer of the workpiece to be cleaned are cleaned.

Embodiment 2

[0064] This embodiment provides a rust remover, specifically a neutral oil and rust remover, which is prepared by the following preparation method:

[0065] Add 150 parts of sodium citrate to 791 parts of water, stir and dissolve, add 30 parts of oxalic acid, stir and dissolve, add 8 parts of sodium fluoride, stir and dissolve, add 3 parts of sodium molybdate, stir and dissolve, add 3 parts of Hexamethylenetetramine, after stirring and dissolving, add 15 parts of alkyl polyoxyethylene ether and stir evenly.

[0066] The application method of the above-mentioned neutral degreasing and rust removing agent: at normal temperature, soak the workpiece to be cleaned in the above neutral degreasing and rust removing agent until the surface oil and rust layer of the workpiece to be cleaned are cleaned.

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PUM

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Abstract

The invention discloses a rust remover and a preparation method thereof, and belongs to the technical field of material chemistry. For every 1000 parts, the rust remover comprises the components in parts by weight: 100-200 parts of organic acid salt, 10-50 parts of organic acid, 5-10 parts of fluoride salt, 1-5 parts of molybdate, 1-5 parts of a corrosion inhibitor and the balance of water, and the rust remover does not contain inorganic acid. The rust remover does not use hydrochloric acid and sulfuric acid, is environmentally friendly, neutral, low in corrosion to equipment, free of acid mist and safe to use, and has a good rust removal effect. The preparation method comprises the step of mixing the components in proportion, is convenient to operate and is suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of material chemistry, in particular to a rust remover and a preparation method thereof. Background technique [0002] Ferrous metal (steel) is prone to rust when placed outdoors or in the open air, which not only affects the appearance quality, but also affects the normal progress of painting, bonding and other processes. Economic losses. [0003] Rust remover is also called rust loosening agent. Its main function is to loosen rusty fasteners, lubricate fasteners that cannot be disassembled, and facilitate the removal of rusty fasteners. It forms a durable corrosion protection on bare metal surfaces, preventing new rust from forming. The rust remover is also an ideal lubricating coolant, suitable for tapping threads on the surface of stainless steel and aluminum plates. It can also effectively clean and dry electronic equipment and improve conductivity. [0004] Traditional rust removers are harmful to ...

Claims

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Application Information

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IPC IPC(8): C23G1/08C23G1/06
CPCC23G1/088C23G1/065C23G1/061
Inventor 黄涛华文丰正
Owner 佛山市顺德区美硕金属表面技术有限公司
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