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Fast bright quenching oil and preparation method thereof

A quenching oil and bright technology, which is applied in the direction of quenching agent, manufacturing tools, heat treatment equipment, etc., can solve the problems of reducing oil performance, interference, and poor stability of quenching oil, etc., to achieve extended use effect, improve stability, and improve cooling speed effect

Active Publication Date: 2020-04-28
NANJING KERUN LUBRICANTS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, only additives are used to improve the cooling speed, brightness and emulsification resistance of the quenching oil, but the quenching oil with various additives has poor stability, and different types of additives will interfere with each other, reducing the oil quality. product performance

Method used

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  • Fast bright quenching oil and preparation method thereof
  • Fast bright quenching oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The quick and bright quenching oil of the present invention is mixed with the following components by weight percentage:

[0030] Refined mineral oil (40℃ kinematic viscosity 10mm 2 / s, saturated hydrocarbon content 92%, cycloalkane content 45%, viscosity index 92) 89%, polyisobutylene (molecular weight 500) 4%, polymethacrylate (molecular weight 5000) 2%, imidazoline oleate 2% , polyisobutylene succinimide (molecular weight 1000, N mass percentage 2%) 1%, 2,6-di-tert-butyl-p-cresol 0.5% and alkyl diphenylamine 1.5%.

[0031] The quenching oil of embodiment 1 is prepared by the following method:

[0032] (1) Add 30% refined mineral oil, polyisobutylene, polymethacrylate, 2,6-dibutyl p-cresol and alkyl diphenylamine to the reaction kettle and mix them in turn, stir well and then add the formula amount of polyisobutylene succinimide, heated up to 70°C, and kept for 3h;

[0033] (2) Add the remaining 59% refined mineral oil to the mixed material in step (1). After cooli...

Embodiment 2

[0035] The quick and bright quenching oil of the present invention is mixed with the following components by weight percentage:

[0036] Refined mineral oil (40℃ kinematic viscosity 20mm 2 / s, saturated hydrocarbon content 95%, cycloalkane content 40%, viscosity index 100) 84%, ethylene-propylene random copolymer (molecular weight 3000) 4%, polymethacrylate (molecular weight 2000) 5%, petroleum sulfonate Salt (molecular weight 1000) 1%, oleic acid amide 5%, polyisobutylene succinimide (molecular weight 2300, N content 1.8%) 0.5%, liquid polymer phenol 0.2% and alkylphenyl-α-naphthylamine 0.3%.

[0037] The quenching oil of embodiment 2 adopts following method to prepare:

[0038] (1) Add 40% refined mineral oil and ethylene-propylene random copolymer, polymethacrylate, petroleum sulfonate, liquid high molecular weight phenol and alkylphenyl-α-naphthylamine to the reaction in sequence Mix in the kettle, stir evenly, add polyisobutylene succinimide in the same amount as the f...

Embodiment 3

[0041] The quick and bright quenching oil of the present invention is mixed by the following components by weight percentage: refined mineral oil (40 ℃ kinematic viscosity 30mm 2 / s, saturated hydrocarbon content 98%, cycloalkane content 40%, viscosity index 110) 92%, dialkyl naphthalene (molecular weight 3000) 1%, polyisobutylene (molecular weight 2000) 3%, imidazoline oleate 1.5%, Polyisobutylene succinimide (molecular weight 2300, N content 1.8%) 2%, thioether phenol 0.2% and octylbutyl dianiline 0.3%.

[0042] The quenching oil of embodiment 3 is prepared by the following method:

[0043](1) Add 35% refined mineral oil, dialkylnaphthalene, petroleum asphalt, thioether phenol and octylbutyl diphenylamine to the reaction kettle and mix them in turn. After stirring evenly, add polyisobutylene butylene For diimide, heat up to 75°C and keep warm for 2.5h;

[0044] (2) Add the remaining 57% refined mineral oil to the mixed material in step (1), after cooling to 40° C., add the...

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Abstract

The invention discloses fast bright quenching oil which is formed through mixing the following components in percentage by weight: 80-92% of base oil, 4-10% of a cooling accelerant, 1.5-5% of a surfactant, 0.5-3% of an auxiliary dispersing agent and 0.5-2% of an antioxidant. The invention further discloses a preparation method of the fast bright quenching oil. The fast bright quenching oil has excellent cooling performance, thermal oxidation stability and brightness and also has the oil-water separating performance; and according to the preparation method, base oil is added in a system twice to better disperse various additives in the formula, so that the stability of the additives in an oil product system is improved to prolong the using effect of an oil product.

Description

technical field [0001] The invention relates to a fast bright quenching oil, and also relates to a preparation method of the above-mentioned quenching oil, which belongs to the technical field of metal processing oil. Background technique [0002] Quenching is an important process in heat treatment, and cooling after quenching is an essential link. Through quenching, the potential of metal materials can be fully utilized to meet the requirements of various product workpieces for metal materials. The performance of steel after quenching is determined by the microstructure after quenching, and the quenching microstructure is determined by the composition of the steel, the size of the parts and the quenching process. [0003] Quenching oil is the most widely used quenching medium at present, and the mineral oil used for quenching is usually based on neutral paraffin base oil with a high degree of refinement, which has high flash point, low viscosity, less oily smoke, less oily...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/58
CPCC21D1/58
Inventor 聂晓霖朱国靖左永平
Owner NANJING KERUN LUBRICANTS
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