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Stainless steel tube surface treating agent as well as preparation method and application thereof

A surface treatment agent, stainless steel pipe technology, applied in the direction of metal material coating process, etc., can solve the problems of skin corrosion, easy to emit yellow smoke, poisonous and harmful, etc., achieve rapid rust dissolution, improve surface anti-corrosion performance, and prolong service life Effect

Pending Publication Date: 2022-07-22
苏州盈得化学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such products are prone to yellow smoke during use, producing toxic and harmful nitric oxide, nitrogen dioxide and other nitrogen oxide gases, and the working fluid is strongly corrosive to the skin
Although many formulas reduce the amount of nitric acid and hydrofluoric acid, or add acid mist inhibitors to alleviate the harm to the environment and human body, they have not been completely eradicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A stainless steel tube surface treatment agent and its preparation method and application, the raw material components and their dosage are as follows:

[0025] 17g lactic acid, 12g tartaric acid, 12g coconut oil polyoxyethylene ether, 7g fatty acid polyoxyethylene ether, 7g polyglutamic acid (500kDa), 3g methylbenzotriazole, 12g 1,3-propanediol, 30g water.

[0026] Specific steps are as follows:

[0027] (1) adding the water of the calculation and weighing into the reactor, start the stirrer, then add the lactic acid, tartaric acid, coco-polyoxyethylene ether, fatty acid polyoxyethylene ether, polyglutamic acid of the calculation and weighing successively in turn into the reaction kettle, heated to 110 °C and continued to stir for 1 h;

[0028] (2) After adding tolutriazole and 1,3-propanediol in sequence, when all the raw materials have been added, adjust the temperature to 60°C and continue stirring for 1 hour, cool to room temperature, unload and pack after passing...

Embodiment 2

[0032] A stainless steel tube surface treatment agent and its preparation method and application, the raw material components and their dosage are as follows:

[0033] 15g lactic acid, 10g tartaric acid, 8g coconut oil polyoxyethylene ether, 10g fatty acid polyoxyethylene ether, 10g polyglutamic acid (400kDa), 4g methylbenzotriazole, 15g 1,2-propanediol, 28g water.

[0034] Specific steps are as follows:

[0035] (1) adding the water of the calculation and weighing into the reactor, start the stirrer, then add the lactic acid, tartaric acid, coco-polyoxyethylene ether, fatty acid polyoxyethylene ether, polyglutamic acid of the calculation and weighing successively in turn In the reactor, heated to 100 ° C and continued to stir for 70 min;

[0036] (2) after adding methyl benzotriazole and 1,2-propanediol successively, after adding all the raw materials, adjust the temperature to 55 ° C and continue to stir for 65 min, cool to room temperature, unload and pack after sampling a...

Embodiment 3

[0040] A stainless steel tube surface treatment agent and its preparation method and application, the raw material components and their dosage are as follows:

[0041] 20g lactic acid, 15g tartaric acid, 15g coconut oil polyoxyethylene ether, 5g fatty acid polyoxyethylene ether, 5g polyglutamic acid (600kDa), 2g methylbenzotriazole, 8g 1,2-propanediol, 30g water.

[0042] Specific steps are as follows:

[0043] (1) adding the water of the calculation and weighing into the reactor, start the stirrer, then add the lactic acid, tartaric acid, coco-polyoxyethylene ether, fatty acid polyoxyethylene ether, polyglutamic acid of the calculation and weighing successively in turn In the reactor, heated to 120 ° C and continued to stir for 50 min;

[0044] (2) after adding methyl benzotriazole and 1,2-propanediol successively, after adding all the raw materials, adjust the temperature to 55 ° C and continue to stir for 55 min, cool to room temperature, unload and pack after sampling and...

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Abstract

The invention relates to a stainless steel pipe surface treating agent and a preparation method and application thereof, and belongs to the technical field of stainless steel surface treatment. The stainless steel pipe surface treating agent comprises the following raw material components in percentage by mass: 15-20% of lactic acid, 10-15% of tartaric acid, 8-15% of coconut oil alcohol polyoxyethylene ether, 5-10% of fatty acid polyoxyethylene ether, 5-10% of polyglutamic acid, 2-4% of methylbenzotriazole, 8-15% of propylene glycol and the balance of water. The environment-friendly acidic rust remover is compounded with the organic passivator and other components, so that the rust remover is environment-friendly and odorless, and the operation process is simple. The stainless steel cleaning agent has super-strong cleaning and decontaminating effects and rapid rust dissolving and oxide skin removing performance, so that the surface of stainless steel is uniformly silvery white.

Description

technical field [0001] The invention relates to the technical field of stainless steel surface treatment, in particular to a stainless steel pipe surface treatment agent and a preparation method and application thereof. Background technique [0002] Seamless stainless steel pipe is a long strip of steel with a hollow section and no joints around it. The rolling method of cold-drawn (rolled) seamless steel pipe is more complicated. After the round tube blank is emptied, it must be headed, annealed, and then pickled and passivated with a special surface treatment agent after annealing to remove oil stains on the surface of the workpiece, Rust spots, oxide layers, free iron and other dirt, the surface becomes uniform silver white after treatment. The acid passivation treatment agent for stainless steel is now commonly used, with nitric acid and hydrofluoric acid as the main pickling agents. This kind of product has low cost and good stainless steel treatment effect, and is cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G5/06C23G1/08C23C22/50
CPCC23G5/06C23G1/088C23C22/50
Inventor 田伟卢培民方健郑凌新李富民王大庆
Owner 苏州盈得化学科技有限公司