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Fast bright quenching oil

A quenching oil, bright technology, applied in the direction of quenching agent, heat treatment equipment, manufacturing tools, etc., can solve the problem of uneven hardness, quenching crack, high viscosity, achieve good chemical stability and tolerance, excellent cooling ability, preparation simple method effect

Inactive Publication Date: 2019-07-02
DALIAN BETRUST ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, some substances such as imidazoline oleate are added to the quenching oil. Although it can make metal products bright to a certain extent, because this kind of substance belongs to aromatic hydrocarbons, it will have a certain negative impact on the environment.
Water-based quenching medium will cause large deformation and cracking of metal products
Adding room temperature antioxidant to the quenching oil leads to poor anti-oxidation effect when processing some products with too high temperature, which makes the quenching oil aging, resulting in slow cooling speed and higher viscosity
Poor quenching effect will cause uneven cooling and uneven hardness of the product, so that the quenched product cannot meet the required mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of antioxidants:

[0025] (1) Put diphenylamine into a four-neck round-bottomed flask, slowly drop diisobutene into it, diphenylamine and diisobutene are in a molar ratio of 1:3.2, control the reaction temperature at 135°C, react for 6 hours, and depressurize after the reaction The excess diisobutene in the distillation place is recycled;

[0026] (2) After the reaction product is lowered to room temperature, add ether to dissolve, stir evenly and then separate layers; wash the organic layer with water, distill the ether out under normal pressure, and dry the distilled product in a drying oven to obtain an antioxidant.

[0027] Preparation of fast bright quenching oil:

[0028] S1. 80kg of mineral oil is added to the reaction kettle, heated to 65°C, and 0.5kg of coconut oil fatty acid diethanolamide and 4.3kg of refrigerant are added under stirring, and the refrigerant is composed of barium petroleum sulfonate, polyisobutylene, The ethylene-propylene copol...

Embodiment 2

[0032] Antioxidant preparation:

[0033] (1) Put diphenylamine into a four-necked round-bottomed flask, slowly drop diisobutene into it, diphenylamine and diisobutene are in a molar ratio of 1:3.2, control the reaction temperature at 140°C, react for 5 hours, and depressurize after the reaction The excess diisobutene in the distillation place is recycled;

[0034] (2) After the reaction product is lowered to room temperature, add ether to dissolve, stir evenly and then separate layers; wash the organic layer with water, distill the ether out under normal pressure, and dry the distilled product in a drying oven to obtain an antioxidant.

[0035] Preparation of fast bright quenching oil:

[0036] S1. Add 83kg of mineral oil into the reactor, heat it to 75°C, add 1kg of coconut oil fatty acid diethanolamide and 3kg of refrigerant under stirring, and the refrigerant is composed of barium petroleum sulfonate, polyisobutylene, ethylene- The propylene copolymer is composed accordin...

Embodiment 3

[0040] Preparation of antioxidants:

[0041] (1) Put diphenylamine into a four-neck round-bottomed flask, slowly drop diisobutene into it, diphenylamine and diisobutene are in a molar ratio of 1:3.2, control the reaction temperature at 135°C, react for 6 hours, and depressurize after the reaction The excess diisobutene in the distillation place is recycled;

[0042] (2) After the reaction product is lowered to room temperature, add ether to dissolve, stir evenly and then separate layers; wash the organic layer with water, distill the ether out under normal pressure, and dry the distilled product in a drying oven to obtain an antioxidant.

[0043] Preparation of fast bright quenching oil:

[0044] S1. Put 80kg of mineral oil into the reaction kettle, heat it to 60-80°C, add 0.8kg of coconut oil fatty acid diethanolamide and 4.2kg of refrigerant under stirring state, and the refrigerant is composed of barium petroleum sulfonate, poly Isobutylene and ethylene-propylene copolyme...

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Abstract

The invention relates to fast bright quenching oil. The quenching oil comprises 80-85% of mineral oil, 1-3% of sorbitan monooleate, 3-5% of cooling accelerant, 0.1-2% of ethylene oxide, 0.1-1% of cocoanut fatty acid diethanolamide, 0.2-3.5% of butylated hydroxytoluene, 5-10% of antioxidant, and 5 to 8% of polyethylene oxide-polypropylene oxide segmented copolymer. The fast bright quenching oil hasshort cooling time, excellent cooling ability, level-1 brightness and good chemical stability and tolerance. Moreover, the quenching oil provided by the invention has small viscosity and is convenient for the after-treatment of a workpiece. A preparation method of the quenching oil is simple, green, environmentally-friendly, and is suitable for large-scale use.

Description

technical field [0001] The invention relates to an environment-friendly fast bright quenching oil. Background technique [0002] Quenching is a necessary process in the processing of metal products. Quenched metal products can greatly improve the strength, hardness, wear resistance, fatigue strength and toughness of metal products, so as to meet the different requirements of various mechanical parts and tools. Existing quenching oil is of a great variety, and quenching effect is also not the same. For example, some substances such as imidazoline oleate are added to the quenching oil. Although it can make metal products bright to a certain extent, since this kind of substance belongs to aromatic hydrocarbons, it will have a certain negative impact on the environment. Water-based quenching medium will cause large deformation and quenching cracking of metal products. Adding room temperature antioxidants to the quenching oil leads to poor anti-oxidation effect when processing ...

Claims

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Application Information

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IPC IPC(8): C21D1/58
CPCC21D1/58
Inventor 邓金玲
Owner DALIAN BETRUST ENVIRONMENTAL PROTECTION TECH CO LTD
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