Water-soluble degradable quenching agent

A quenching agent, water-soluble technology, applied in the direction of quenching agent, heat treatment equipment, manufacturing tools, etc., can solve the problems that affect the cleanliness of the production environment, the corrosiveness of the quenching agent, and the large internal stress, etc., to achieve high practical value and low environmental pollution , Improve the effect of cooling performance

Inactive Publication Date: 2017-02-15
ZHENGZHOU LIFUAI BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the workpiece is prone to "soft spots" during the cooling process, and in the martensitic transformation temperature zone, due to too fast cooling, it is easy to generate a large internal stress, resulting in deformation or even cracking of the workpiece
Part of the water-based quenching agent adds an appropriate amount of salt and alkali to the water, so that after the high-temperature workpiece is immersed in the cooling medium, crystals of salt and alkali can be precipitated in the steam film stage and burst immediately, thereby destroying the steam film and shattering the surface oxidation of the workpiece. Quenching agent can improve the cooling capacity of the medium in the high temperature area, but this kind of quenching agent is highly corrosive and affects the cleanliness of the production environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A water-soluble degradable quenching agent, which is composed of the following raw materials in parts by weight: 2 parts of ethanol, 4 parts of rhamnolipid, 6 parts of citric acid, 2 parts of butyl hydroxyanisole, 8 parts of rapeseed oil, cyclic 11 parts of dextrin, 6 parts of pine oil, 15 parts of acrylic acid, 7 parts of sucrose, 0.5 parts of 2-thione-trimethylol benzothiazoline, and 10 parts of shell powder.

[0017] A kind of preparation method of water-soluble degradable quenching agent, concrete steps are:

[0018] First, dissolve citric acid, butyl hydroxyanisole, and pine oil in ethanol to obtain a mixed solution, then add water that is 1 times the volume of the mixed solution and transfer it to a reactor. The reaction conditions are 115°C, 900r / min, 5MPa, The reaction time is 30 minutes. After the reaction is over, the temperature drops to 64.3°C. Add rhamnolipid, rapeseed oil, cyclodextrin, and sucrose, stir for 10 minutes and let it stand; After centrifuging...

Embodiment 2

[0020] A water-soluble degradable quenching agent, which is composed of the following raw materials in parts by weight: 2 parts of ethanol, 5 parts of rhamnolipid, 8 parts of citric acid, 2 parts of butyl hydroxyanisole, 8 parts of rapeseed oil, cyclic 14 parts of dextrin, 8 parts of pine oil, 18 parts of acrylic acid, 7 parts of sucrose, 0.6 parts of 2-thione-trimethylol benzothiazoline, 14 parts of shell powder.

[0021] A kind of preparation method of water-soluble degradable quenching agent, concrete steps are:

[0022] First, dissolve citric acid, butyl hydroxyanisole, and pine oil in ethanol to obtain a mixed solution, then add water that is 1 times the volume of the mixed solution and transfer it to a reactor. The reaction conditions are 115°C, 900r / min, 5MPa, The reaction time is 30 minutes. After the reaction is over, the temperature drops to 64.3°C. Add rhamnolipid, rapeseed oil, cyclodextrin, and sucrose, stir for 10 minutes and let it stand; After centrifuging for...

Embodiment 3

[0024] A water-soluble degradable quenching agent, which is composed of the following raw materials in parts by weight: 4 parts of ethanol, 6 parts of rhamnolipid, 9 parts of citric acid, 3 parts of butyl hydroxyanisole, 10 parts of rapeseed oil, cyclic 15 parts of dextrin, 9 parts of pine oil, 20 parts of acrylic acid, 8 parts of sucrose, 0.7 parts of 2-thione-trimethylol benzothiazoline, 16 parts of shell powder.

[0025] A kind of preparation method of water-soluble degradable quenching agent, concrete steps are:

[0026] First, dissolve citric acid, butyl hydroxyanisole, and pine oil in ethanol to obtain a mixed solution, then add water 1 times the volume of the mixed solution and transfer it to a reaction kettle. The reaction conditions are 118°C, 950r / min, 7MPa, The reaction time is 35 minutes. After the reaction, the temperature drops to 64.3°C, add rhamnolipid, rapeseed oil, cyclodextrin, and sucrose, stir for 10 minutes and then let stand; then carry out centrifugatio...

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PUM

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Abstract

The invention discloses a water-soluble degradable quenching agent which consists of the following raw materials, by weight: 2-6 parts of alcohol, 4-8 parts of rhamnolipid, 6-10 parts of citric acid, 2-4 parts of butyl hydroxy anisole, 8-12 parts of rapeseed oil, 11-17 parts of cyclodextrin, 6-10 parts of pine oil, 15-25 parts of acrylic acid, 7-8 parts of saccharose, 0.5-0.8 part of 2-thioketone-trihydroxymethyl benzothiazoline and 10-20 parts of shell powder. A preparation method for the water-soluble degradable quenching agent comprises the following steps of: firstly, dissolving citric acid, butyl hydroxy anisole and pine oil into alcohol to obtain a mixed solution; then, adding water into the mixed solution and transferring the mixed solution into a reaction kettle, cooling the mixed solution and adding rhamnolipid, rapeseed oil, cyclodextrin and saccharose into the mixed solution after reaction is ended, stirring for 10 minutes and standing to obtain a mixture; centrifuging the mixture, taking liquid supernatant after the mixture is centrifuged, adding acrylic acid, 2-thioketone-trihydroxymethyl benzothiazoline and shell powder into the mixture, uniformly stirring, heating, preserving the temperature, cooling, and sealing by use of paraffin oil, and thereby obtaining the water-soluble degradable quenching agent. The prepared quenching agent has relatively good water solubility, is ecologically degradable, and is small in environmental pollution.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a water-soluble degradable quenching agent. Background technique [0002] Quenching medium in heat treatment production directly affects the performance of parts after quenching, and is a key factor affecting product quality. Commonly used quenching media mainly include water, aqueous solution, oil, etc. Among them, quenching oil is very polluting to the environment, and it is easy to cause fire during quenching, so it is difficult to meet the requirements of safety and environmental protection. [0003] Water is a quenching medium with strong cooling capacity. It has wide sources, low price, stable composition and not easy to deteriorate. The disadvantage is that the workpiece is prone to "soft spots" during the cooling process, and in the martensitic transformation temperature zone, due to too fast cooling, it is easy to generate a large internal stress, resulting in deforma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/60
CPCC21D1/60
Inventor 不公告发明人
Owner ZHENGZHOU LIFUAI BIOLOGICAL TECH CO LTD
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