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A kind of preparation method of alloy steel quenching oil

A technology of quenching oil and alloy steel, applied in the direction of quenching agent, manufacturing tools, heat treatment equipment, etc., can solve the problems affecting the heat treatment quality of parts, quenching cracks, accidents, etc., achieve good cooling performance and thermal oxidation stability, industrial application The effect of large foreground, prevention of deformation and cracking

Active Publication Date: 2018-02-13
唐山智新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

5. The water content is low. Excessive water in the oil will affect the heat treatment quality of the parts, causing soft spots, quenching cracks or deformation of the parts, and may also cause oil splashes and accidents
[0003] The preparation of a kind of quenching oil specially for alloy steel needs to be studied

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method for alloy steel quenching oil, comprising the following steps:

[0022] (1) First prepare the raw materials according to the following components by mass: 15 parts of base oil, 5 parts of alcohols, 4 parts of inorganic non-metallic salts, 4 parts of high-temperature antioxidants, 10 parts of polycarboxylic acids, and cold-recombining agents 4 parts, 1 part of glycerin monofatty acid ester, 3 parts of coupling agent, 6 parts of surfactant, wherein base oil and surfactant are prepared separately;

[0023] (2) Preparation of base oil: Mix linseed oil, mineral oil, and cottonseed oil with a mass ratio of 3:2:1 evenly and then refine. The temperature of the refining process is 60-70°C. After refining, remove the oil The water and impurities are separated, the oil layer is separated, and the required base oil is obtained by homogenizing through a homogenizer;

[0024] (3) Preparation of surfactant: mix hydrophilic silica, glycerol, and propylene oxide wi...

Embodiment 2

[0028] A preparation method for alloy steel quenching oil, comprising the following steps:

[0029] (1) First prepare the raw materials according to the following components by mass: 20 parts of base oil, 8 parts of alcohols, 6 parts of inorganic non-metallic salts, 8 parts of high-temperature antioxidants, 15 parts of polycarboxylic acids, and cold-recombining agents 9 parts, 4 parts of glycerin monofatty acid ester, 5 parts of coupling agent, 12 parts of surfactant, wherein base oil and surfactant are prepared separately;

[0030] (2) Preparation of base oil: Mix linseed oil, mineral oil, and cottonseed oil with a mass ratio of 3:2:1 evenly and then refine. The temperature of the refining process is 60-70°C. After refining, remove the oil The water and impurities are separated, the oil layer is separated, and the required base oil is obtained by homogenizing through a homogenizer;

[0031] (3) Preparation of surfactant: mix hydrophilic silica, glycerol, and propylene oxide ...

Embodiment 3

[0035] A preparation method for alloy steel quenching oil, comprising the following steps:

[0036] (1) First prepare the raw materials according to the following components by mass: 18 parts of base oil, 7 parts of alcohols, 5 parts of inorganic non-metallic salts, 6 parts of high-temperature antioxidants, 13 parts of polycarboxylic acids, and cold-recombining agents 6 parts, 3 parts of glycerin monofatty acid ester, 4 parts of coupling agent, 9 parts of surfactant, wherein base oil and surfactant are prepared separately;

[0037] (2) Preparation of base oil: Mix linseed oil, mineral oil, and cottonseed oil with a mass ratio of 3:2:1 evenly and then refine. The temperature of the refining process is 60-70°C. After refining, remove the oil The water and impurities are separated, the oil layer is separated, and the required base oil is obtained by homogenizing through a homogenizer;

[0038] (3) Preparation of surfactant: mix hydrophilic silica, glycerol, and propylene oxide w...

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Abstract

The invention discloses a preparation method of alloy steel quenching oil, which consists of base oils, inorganic non-metallic salts, high-temperature antioxidants, polyvalent polycarboxylic acids, cooling complex agents, glycerin monofatty acid esters, coupling agents, surface active The quenching oil obtained by using the alloy steel quenching oil preparation method of the present invention is not only non-toxic and tasteless according to the material characteristics of alloy steel, but also has good cooling performance and thermal oxidation stability, effectively ensuring The alloy steel has a certain hardness and a qualified metallographic structure, which prevents the deformation and cracking of the prepared parts, greatly reduces the rate of defective products, and has remarkable practical value. In addition, the preparation method is simple in process and has great prospects for industrial application.

Description

technical field [0001] The invention relates to the field of iron and steel smelting, in particular to a preparation method of alloy steel quenching oil. Background technique [0002] Quenching oil is a process oil used as a quenching medium. Quenching oil must have the following characteristics: Good cooling performance 1. Cooling performance is an important performance of quenching medium. Its quality directly affects the quality of quenched parts. Good cooling performance can ensure that the quenched parts have a certain hardness and pass 2. High flash point and ignition point. When quenching, the temperature of the oil will rise instantaneously. If the flash point and ignition point of the oil are low, ignition may occur. Therefore, the quenching oil should have a higher flash point and ignition point. Generally, the flash point should be 60-80°C higher than the temperature of the used oil; 3. Good thermal oxidation stability. Quenching oil is used under the harsh cond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/58
Inventor 张斌
Owner 唐山智新科技有限公司