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Quenching agent for thermal treatment

A quenching agent and additive technology, applied in the direction of quenching agent, heat treatment equipment, manufacturing tools, etc., can solve the problems of heat treatment product quality decline, cooling characteristics change, accelerated aging, etc., and achieve the effect of bright surface, uniform hardness, and not easy to crack

Inactive Publication Date: 2016-09-21
ANQING JIAN AUTO PART FORGING & ROLLING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In use, the organic solution will accelerate aging after being heated, and its cooling characteristics will change. If it is not replaced in time, the quality of the heat-treated product will be reduced, or even unqualified.
At present, there is no uniform quenching agent for the quenching treatment of wear-resistant material workpieces in the market. The quenching treatment process of wear-resistant materials is an important part of the toughness of the workpiece. It is necessary to develop wear-resistant material quenching agents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, a quenching agent for heat treatment, its components and their mass fractions are as follows: polyether 15%, isopropanolamine 5%, polyvinyl alcohol: 5%, acrylic ester 3%, sodium hydroxide 6%, Additives 0.1%, zinc chloride 6%, balance water; the additives include defoamer 0.05-0.1%, preservative 0.1-0.3%, anti-rust agent 0.1-0.5%, lubricant 0.1-0.5%, bactericide 0.1% to 0.5%; the defoamer is organosiloxane; the preservative is sodium benzoate.

Embodiment 2

[0015] Embodiment 2, a quenching agent for heat treatment, its components and mass fractions are as follows: polyether 20%, isopropanolamine 8%, polyvinyl alcohol: 10%, acrylate 7%, sodium hydroxide 12%, Additives 2%, zinc chloride 8, balance water; the additives include defoamer 0.05-0.1%, preservative 0.1-0.3%, anti-rust agent 0.1-0.5%, lubricant 0.1-0.5%, fungicide 0.1 ~0.5%; the defoamer is organosiloxane; the preservative is sodium benzoate.

Embodiment 3

[0016] Embodiment 3, a quenching agent for heat treatment, its components and their mass fractions are as follows: polyether 18%, isopropanolamine 6%, polyvinyl alcohol: 8%, acrylate 5%, sodium hydroxide 8%, Additives 1%, zinc chloride 7%, balance water; the additives include defoamer 0.05-0.1%, preservative 0.1-0.3%, anti-rust agent 0.1-0.5%, lubricant 0.1-0.5%, bactericide 0.1% to 0.5%; the defoamer is organosiloxane; the preservative is sodium benzoate.

[0017] The formula of the invention is reasonable, the quenched parts can reach higher hardness, and the hardness is uniform, and can be used for direct quenching, forging waste heat quenching and induction jet quenching, especially for the quenching of large workpieces; the sodium hydroxide used in the invention can quench parts The oxide scale on the surface interacts to produce hydrogen, which quickly peels off the oxide scale, making the surface of the quenched part appear bright silver white; zinc chloride reacts with so...

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PUM

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Abstract

The invention discloses a quenching agent for thermal treatment. The quenching agent comprises the following components by mass percent: 15-20% of polyether, 5 to 8% of isopropanolamine, 5 to 10% of polyvinyl alcohol, 3 to 7% of acrylic ester, 6 to 12% of sodium hydroxide, 0.1 to 2% of an additive and 6 to 8% of zinc chloride, and the balance being water. According to the quenching agent for thermal treatment, the formula is reasonable, the pollution is avoided, the quenching effect is good, and a quenched part is relatively high and uniform in hardness.

Description

Technical field [0001] The invention relates to the technical field of production and processing of shaft parts, in particular to a quenching agent for heat treatment. Background technique [0002] Quenching oil is a process oil used as quenching medium. Quenching oil must have the following characteristics: good cooling performance, high flash point and ignition point, good thermal oxidation stability, low viscosity, and low water content. In addition to the above characteristics, the quenching oil should be non-toxic, odorless, easy to handle, non-polluting to the environment, and brighten the surface of the quenched workpiece. According to the cooling rate, it can be divided into: (1) ordinary quenching oil; (2) rapid quenching oil; (3) super (high) speed quenching oil. Overspeed quenching oil has a fairly fast cooling rate, faster than rapid quenching oil. The oil is prepared by adding refrigerant, detergent and antioxidant to refined paraffin-based lubricating oil. When ...

Claims

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Application Information

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IPC IPC(8): C21D1/60
CPCC21D1/60
Inventor 査凌宇
Owner ANQING JIAN AUTO PART FORGING & ROLLING
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