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Strip steel surface cleaning agent, preparation method and use method thereof

The technology of a surface cleaning agent and a surfactant is applied in the field of strip steel cleaning agent and its preparation, which can solve the problems of phosphorus pollution and high cost, and achieve the effects of improving cleaning effect, reducing influence and reducing cost.

Inactive Publication Date: 2017-03-29
ANSTEEL BEIJING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using a combination of anionic and nonionic surfactants, the cleaning effect on galvanized strip steel is better, and in addition, it contains phosphorus to pollute the environment and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Sodium hydroxide 15%

[0030] Sodium carbonate 5%

[0031] Sodium gluconate 2%

[0032] Ethylenediaminetetraacetic acid tetrasodium tetrahydrate 2%

[0033] Sodium dodecylbenzene sulfonate and sodium lauryl sulfate 4%

[0034] Alkyl polyoxyethylene ether and polyethylene glycol octyl phenyl ether 4%

[0035] Water 68%

[0036] First put the measured water into the container and start the mixer. Put metered amounts of sodium hydroxide, sodium carbonate, sodium gluconate, sodium dodecylbenzene sulfonate and sodium lauryl sulfate into the container in turn, stir and mix thoroughly to dissolve the ingredients. Then, put a metered amount of ethylenediaminetetraacetic acid tetrasodium tetrahydrate chelating agent into the container, stir and mix well to dissolve each component.

[0037] Finally, put a metered amount of alkyl polyoxyethylene ether and polyethylene glycol octyl phenyl ether non-ionic surfactant into the container, fully stir, and stand still for not less than 1 hour.

[00...

Embodiment 2

[0040] Sodium hydroxide 18%

[0041] Sodium carbonate 8%

[0042] Sodium gluconate 3%

[0043] Ethylenediaminetetraacetic acid tetrasodium tetrahydrate 3%

[0044] Sodium dodecylbenzene sulfonate 2%

[0045] Alkyl polyoxyethylene ether 2%

[0046] Water 64%

[0047] First put the measured water into the container and start the mixer. Put metered amounts of sodium hydroxide, sodium carbonate, sodium gluconate, and sodium dodecylbenzene sulfonate into the container in turn, stir and mix thoroughly to dissolve the ingredients. Then, put a metered amount of ethylenediaminetetraacetic acid tetrasodium tetrahydrate chelating agent into the container, stir and mix well to dissolve each component.

[0048] Finally, put a metered amount of alkyl polyoxyethylene ether non-ionic surfactant into the container, stir well, and stand still for not less than 1 hour.

[0049] When used at the production site, the concentration of this product is 4%, and the balance is water. The present invention is used...

Embodiment 3

[0051] Sodium hydroxide 20%

[0052] Sodium carbonate 10%

[0053] Sodium gluconate 4%

[0054] Ethylenediaminetetraacetic acid tetrasodium tetrahydrate 3%

[0055] Sodium lauryl sulfate 2%

[0056] Polyethylene glycol octyl phenyl ether 2%

[0057] Water 59%

[0058] First put the measured water into the container and start the mixer. Put metered amounts of sodium hydroxide, sodium carbonate, sodium gluconate, and sodium lauryl sulfate into the container in turn, stir and mix thoroughly to dissolve the ingredients. Then, put a metered amount of ethylenediaminetetraacetic acid tetrasodium tetrahydrate chelating agent into the container, stir and mix well to dissolve each component.

[0059] Finally, put a metered amount of polyethylene glycol octyl phenyl ether nonionic surfactant into the container, fully stir, and stand still for not less than 1 hour.

[0060] When used at the production site, the concentration of this product is 6%, and the balance is water. The present invention is u...

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PUM

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Abstract

The invention discloses a strip steel surface cleaning agent, a preparation method and a use method thereof, wherein the strip steel surface cleaning agent comprises 20-25% of sodium hydroxide, 5-10% of sodium carbonate, 3-5% of sodium gluconate, 3.5-15% of an anionic surfactant, 0.5-10% of a nonionic surfactant, 5-10% of a chelating agent, and 20-63% of water, wherein the chelating agent is an ethylenediaminetetraacetic acid tetrasodium tetrahydrate, the anionic surfactant is one or more than one selected from sodium dodecylbenzene sulfonate and sodium dodecyl sulfate, and the nonionic surfactant is one or more than one selected from alkyl polyoxyethylene ether and polyethylene glycol octyl phenyl ether. According to the present invention, with the application of the cleaning agent in the degreasing treatment of cold-rolled plates, galvanized plates and other metal materials, no pollutant is generated during the strip steel cleaning, the cleaning effect is increased, and the coat is reduced; the cleaning agent uses the ethylenediaminetetraacetic acid tetrasodium tetrahydrate to replace the traditional phosphate so as to be used as the chelating agent, such that the advantages of safety and environmental protection are provided; and with the cleaning agent, the cleaning effect on the galvanized substrate can be achieved, the influence of the strip steel surface pollutant on the subsequent galvanizing process can be reduced, and the quality of the galvanized product is improved.

Description

Technical field [0001] The invention relates to the field of strip steel surface cleaning agents, in particular to a strip steel cleaning agent and preparation and use methods thereof. Background technique [0002] Metal plates must undergo surface treatment processes such as degreasing before galvanizing and color coating to remove other dirt such as rolling lubricating oil, equipment miscellaneous oil and iron powder on the metal surface. The degree of degreasing on the metal surface will directly affect the subsequent strip steel. Processing quality. Therefore, the development of high-efficiency degreasing agents to improve the degreasing and cleaning ability of strip steel before galvanizing is a common concern in galvanizing production. Through continuous exploration, some scholars at home and abroad have made great progress in the research and application of the cleaning of oily contaminants on the surface of strip steel. However, the cleaning agent mainly uses imported pr...

Claims

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Application Information

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IPC IPC(8): C23G1/19
CPCC23G1/19
Inventor 张岩杜天容吴鲲魁王军生高健
Owner ANSTEEL BEIJING RES INST
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