Quenching agent

A technology of quenching agent and defoaming agent, which is applied in the direction of quenching agent, heat treatment equipment, manufacturing tools, etc., can solve the problems of unsafe use, polluting the environment, and narrow cooling speed range, so as to prevent cracking of workpieces, reduce environmental pollution, and reduce costs. low effect

Inactive Publication Date: 2015-03-04
WUHU JINLONG MOLD FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of narrow cooling speed range, environmental pollution and unsafe use of existing quenching agents, the present invention provides a safe and environmentally friendly quenching agent that can rapidly cool at high temperatures and slow down the cooling speed at low temperatures, which can effectively improve the performance, preventing workpiece cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of quenching agent, its component and mass fraction thereof are as follows:

[0032] 15 parts of polyoxyethylene ether;

[0033] 8 parts of triisopropanolamine;

[0034] 4 parts of polyvinyl acetate;

[0035] 1 part of sodium benzoate;

[0036] Defoamer 2

[0037] 70 parts of water

[0038] When the invention is used to quench the workpiece, the cooling time at high temperature can be effectively shortened, the cooling speed at low temperature can be slowed down, the workpiece has no cracking phenomenon, and the performance is good.

Embodiment 2

[0040] Same as Example 1, the difference is the content of each substance: 20 parts of polyoxyethylene ether; 6 parts of triisopropanolamine; 3 parts of polyvinyl acetate; 4 parts of sodium benzoate; 1 part of defoamer and 75 parts of water.

[0041] When the invention is used to quench the workpiece, the cooling time at high temperature can be effectively shortened, the cooling speed at low temperature can be slowed down, the workpiece has no cracking phenomenon, and the performance is good.

Embodiment 3

[0043] With embodiment 1, difference is the content of each substance: polyoxyethylene ether 18 parts;

[0044] 5 parts of triisopropanolamine;

[0045] 7 parts of polyvinyl acetate;

[0046] 3 parts of sodium benzoate;

[0047] Defoamer 0.5

[0048] 80 parts of water.

[0049] When the invention is used to quench the workpiece, the cooling time at high temperature can be effectively shortened, the cooling speed at low temperature can be slowed down, the workpiece has no cracking phenomenon, and the performance is good.

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PUM

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Abstract

The invention discloses a quenching agent, belonging to the field of heat treatment of metals. The quenching agent comprises the following components in parts by weight: 15-20 parts of polyoxyethylene ether, 5-8 parts of triisopropanolamine, 3-7 parts of polyvinyl acetate, 1-4 parts of sodium benzoate, 0.5-2 parts of a defoaming agent and 70-80 parts of water. By applying the quenching agent to the heat treatment of the metals, the high-temperature cooling speed can be effectively increased, the high-temperature cooling time can be prolonged, and the cracking of workpieces can be prevented; furthermore, the quenching agent is safe and environmental friendly in use, extremely low in environmental pollution and cost, and easy to industrially produce.

Description

technical field [0001] The invention belongs to the field of metal heat treatment, and in particular relates to a quenching agent. Background technique [0002] In order to obtain steels with different properties, it is necessary to improve the properties of metal materials. Usually, heat treatment is performed on metal workpieces. Commonly used heat treatment processes include quenching, tempering, annealing, normalizing and other heat treatment methods. Among them, quenching refers to, for example, rapidly cooling a workpiece heated to an austenite state at a speed above the critical cooling rate to form a quenched structure such as martensite. After quenching, the hardness of the workpiece can be increased. In the quenching process, the cooling process of the workpiece is generally divided into three stages, namely, the first stage (steam film stage) in which the metal material is surrounded by the vapor of the quenching medium, the second stage (boiling stage) in which t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/60
CPCC21D1/60
Inventor 李大志
Owner WUHU JINLONG MOLD FORGING
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