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Water-soluble quenching medium

A quenching medium and water-soluble technology, which is applied in the field of heat treatment, can solve the problems of reports and no public information on PAG water-soluble quenching medium, and achieve the effect of convenient operation, low cost and good environmental performance

Inactive Publication Date: 2014-01-01
WUXI YANGGONG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quenching heat treatment of hot die steel still uses quenching oil, and there is no public information report on the application of PAG water-soluble quenching medium in the heat treatment of die steel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The formula of water-soluble quenching medium of the present invention is:

[0015] Sodium hydroxide 7kg, alum 3.5kg, starch 1.5kg, potassium chloride 1.5kg, foaming agent 1.5kg, foam booster 1.5kg, water 83.5kg.

[0016] The preparation method of water-soluble quenching medium of the present invention is:

[0017] Mix sodium hydroxide, potassium chloride and alum into the water, stir evenly, then add the rest of the ingredients, stir evenly.

[0018] During application, the hot die steel is heated to 920°C and immersed in the water-soluble quenching medium of the present invention, the temperature of the quenching medium is 50°C, and the immersion time is 4s.

Embodiment 2

[0020] The formula of water-soluble quenching medium of the present invention is:

[0021] Sodium hydroxide 6kg, alum 3kg, starch 2kg, potassium chloride 2kg, foaming agent 1kg, foam booster 2kg, water 84kg.

[0022] The preparation method of water-soluble quenching medium of the present invention is:

[0023] Mix sodium hydroxide, potassium chloride and alum into the water, stir evenly, then add the rest of the ingredients, stir evenly.

[0024] During application, the hot die steel is heated to 940°C and immersed in the water-soluble quenching medium of the present invention, the temperature of the quenching medium is 70°C, and the immersion time is 5s.

Embodiment 3

[0026] The formula of water-soluble quenching medium of the present invention is:

[0027] Sodium hydroxide 8kg, alum 4kg, starch 1kg, potassium chloride 1kg, foaming agent 2kg, foam booster 1kg, water 83kg.

[0028] The preparation method of water-soluble quenching medium of the present invention is:

[0029] Mix sodium hydroxide, potassium chloride and alum into the water, stir evenly, then add the rest of the ingredients, stir evenly.

[0030] During application, the hot die steel is heated to 900°C and immersed in the water-soluble quenching medium of the present invention, the temperature of the quenching medium is 40°C, and the immersion time is 3s.

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PUM

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Abstract

The invention provides a water-soluble quenching medium. The water-soluble quenching medium comprises the following components by mass percent: 6-8 percent of sodium hydroxide, 3-4 percent of alum, 1-2 percent of starch, 1-2 percent of potassium chloride, 1-2 percent of a foaming agent, 1-2 percent of a foam booster, and the balance of water. The water-soluble quenching medium is low in cost, good in environment-friendly performance, and convenient to operate. The water-soluble quenching medium is used for quenching hot die steels, and the obtained hot die steels can meet the performance requirements in rigidity, metallographic structure, tensile strength, yield strength, deflection, thermal cracking resistance, wear resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of heat treatment, and in particular relates to a water-soluble quenching medium. Background technique [0002] The use of water-soluble quenching media in heat treatment is becoming more and more popular, and the most representative one is PAG water-soluble quenching media. PAG water-soluble quenching media are used for medium and low carbon steels such as 30# and 45#, and medium and low alloy steels such as 40Cr, 42Cr, and 35Cr. Heat treatment with non-toxic quenching medium can meet the requirements of industrial production in terms of hardness, metallographic structure, tensile strength, yield strength, deformation, etc., such as heat treatment of crankshafts, half shafts, front axles, agricultural machinery, etc. for automobiles. [0003] However, ordinary PAG water-soluble quenching media also have limitations, and are not suitable for quenching of hot die steels, for example, they are not suitable for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/60
Inventor 杨龙兴
Owner WUXI YANGGONG MACHINERY MFG
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