Environment-friendly water-soluble quenching liquid and preparation method thereof

A water-soluble, quenching liquid technology, used in quenching agents, manufacturing tools, heat treatment equipment, etc., to achieve the benefits of operators and the environment, solve oil quenching is not hard, avoid water quenching cracking and quenching soft spots.

Inactive Publication Date: 2020-04-28
沙索(广州)工业介质科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at many problems existing in the quenching liquid in the prior art, the present invention proposes an environment-friendly water-soluble quenching liquid, which simultaneously improves the problems of oily and water-based quenching media, improves the hardness uniformity of the quenched product, and prevents the quenched product from deforming , low temperature does not crack, and environmental protection and safety

Method used

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  • Environment-friendly water-soluble quenching liquid and preparation method thereof
  • Environment-friendly water-soluble quenching liquid and preparation method thereof
  • Environment-friendly water-soluble quenching liquid and preparation method thereof

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Effect test

Embodiment 1

[0015] The environment-friendly water-soluble quenching liquid of the present invention comprises polyalkylene glycol 25%, monoethanolamine 5%, diethanolamine 5%, dodecyl carbon dicarboxylic acid 1%, defoamer 0.5%, antioxidant 0.5%, Corrosion inhibitor 0.5%, the rest is deionized water.

[0016] The preparation method of the above-mentioned environment-friendly water-soluble quenching liquid is as follows: dissolve monoethanolamine and diethanolamine, then add dodecyl dicarboxylic acid, stir and react, then add antioxidant and corrosion inhibitor in turn, stir evenly, and then add polyalkylene Ethylene glycol polymer reaction, finally add defoamer, stir evenly.

Embodiment 2

[0018] The environment-friendly water-soluble quenching liquid of the present invention includes 30% of polyalkylene glycol, 8% of diethanolamine, 1.5% of dodecane dicarboxylic acid, 0.5% of defoamer, 1% of antioxidant, and 0.5% of corrosion inhibitor , and the rest is deionized water.

[0019] The preparation method of the above-mentioned environment-friendly water-soluble quenching liquid is as follows: dissolve diethanolamine, then add dodecyl carbon dicarboxylic acid, stir and react, then add antioxidant and corrosion inhibitor in turn, stir evenly, and then add polyalkylene glycol Alcohol-polymer reaction, finally add defoamer and stir evenly.

Embodiment 3

[0021] The environment-friendly water-soluble quenching liquid of the present invention comprises 40% of polyalkylene glycol, 3% of monoethanolamine, 6% of diethanolamine, 2% of undecyl dicarboxylic acid, 1% of defoamer, 1% of antioxidant, Corrosion inhibitor 0.5%, the rest is deionized water.

[0022] The preparation method of the above-mentioned environment-friendly water-soluble quenching liquid is as follows: dissolve monoethanolamine and diethanolamine, then add undecyl dicarboxylic acid, stir and react, then add antioxidant and corrosion inhibitor in turn, stir evenly, and then add polyalkylene Ethylene glycol polymer reaction, finally add defoamer, stir evenly.

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Abstract

The invention discloses an environment-friendly water-soluble quenching liquid, which comprises the following components in percentage by mass: 25-45% of polyalkylene glycol, 5-10% of compound amine,1-3% of polybasic carboxylic acid, 0-1% of defoaming agent, 0-2% of antioxidant, 0-1% of corrosion inhibitor and the balance of deionized water; dissolving the composite amine, adding carboxylic acid,stirring for reaction, then sequentially adding antioxidant and corrosion inhibitor, stirring uniformly, then adding polyalkylene glycol polymer for reaction, finally adding the defoaming agent, andstirring uniformly. The cooling performance of the environment-friendly water-soluble quenching liquid provided by the invention is between water and oil, so the quenching liquid can not only avoid water quenching cracking and quenching soft spots, but also solve the defects that oil cannot be hardened and quenched thoroughly, the cooling speed can be adjusted by changing the concentration so as to be suitable for workpieces with different hardenability materials and different sizes, and the quenching liquid is a non-nitrite system, so the quenching liquid is safe and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of heat treatment cooling medium, and in particular relates to an environment-friendly water-soluble quenching liquid and a preparation method thereof. Background technique [0002] Over the years, my country has done a lot of work in the research and application of quenching media, and achieved good results, basically meeting the needs of some heat treatment production, but there is still a certain gap compared with the advanced level of foreign countries. The ideal effect of workpiece quenching is to obtain high and uniform surface hardness and sufficient hardening depth, avoid quenching cracks and minimize quenching deformation. At present, some enterprises in the heat treatment industry still use mineral oil as a cooling medium, and a considerable part is discharged into the natural environment, causing pollution. According to the cooling capacity of the cooling medium, the water-soluble quenching mediu...

Claims

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Application Information

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IPC IPC(8): C21D1/60
CPCC21D1/60
Inventor 韩军潘永清
Owner 沙索(广州)工业介质科技有限公司
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