Aluminum alloy quenching medium and preparation method thereof

A technology of quenching agent and aluminum alloy, which is applied in the field of heat treatment, can solve the problems of workpiece cracking and fast cooling speed, and achieve the effects of no oil fume, crack prevention and less volatilization

Inactive Publication Date: 2015-05-06
安徽东星汽车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water-based quenching agent also has limitations such as fast water cooling speed and easy to cause cracking of the workpiece. It is necessary to overcome the above problems by adjusting the composition of the quenching agent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Non-limiting examples of the present invention are as follows:

[0020] An aluminum alloy quenching agent is prepared from the following component raw materials by weight (kg):

[0021] N-Methylpyrrolidone 0.8, Sodium Chloride 4, Lauric Acid 0.8, Lauroyl Diethanolamine 0.8, Mannitol 1.5, Glycerol 3, Urea 1.5, Carboxymethylcellulose Sodium 0.8, Sodium Bicarbonate 0.8, Lignosulfonate Sodium acid 0.4, water-soluble lanolin 1.5, additive 4, water 75;

[0022] Among them, the additives are made of raw materials with the following weight (kg):

[0023] Fresh pork bone powder 18, sodium lauroyl sarcosinate 1.5, lauryl glucoside 1.5, sorbitan monooleate 0.8, sodium edetate 1.5, sodium gluconate 4, sodium citrate 3, methyl Isothiazolinone 0.4, Vitamin C Magnesium Phosphate 0.8;

[0024] The preparation method of auxiliary agent:

[0025] First add 10% acetic acid solution to the fresh pork bone powder according to the solid-to-liquid weight ratio of 1:6, then add sodium laur...

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Abstract

The invention discloses an aluminum alloy quenching medium. The invention is characterized in that the quenching medium is prepared from the following raw materials in parts by weight: 0.5-1 part of N-methylpyrrolidone, 3-5 parts of sodium chloride, 0.5-1 part of lauric acid, 0.5-1 part of lauroyl diethanolamine, 1-2 parts of mannitol, 2-4 parts of glycerol, 1-2 parts of urea, 0.5-1 part of sodium carboxymethyl cellulose, 0.5-1 part of sodium bicarbonate, 0.3-0.5 part of sodium lignosulfonate, 1-2 parts of water-soluble lanolin, 3-5 parts of assistant and 70-80 parts of water. The quenching medium satisfies the deep quenching requirements; the treated workpiece has the advantages of high hardness, favorable tensile property and long service life; and the quenching medium effectively prevents cracking and is suitable for aluminum alloy quenching.

Description

technical field [0001] The invention relates to heat treatment technology, in particular to an aluminum alloy quenching agent and a preparation method thereof. Background technique [0002] Quenching is a process in which a metal workpiece is heated above the phase transition temperature, and then rapidly cooled in a quenching medium after heat preservation to obtain a martensitic structure. Through the quenching process, the purpose of improving or adjusting the hardness and wear resistance of the workpiece can be achieved. In this process, the requirements for the quenching medium (quenching agent) are to avoid deformation and cracking of the workpiece; the quenching agent is easy to clean, does not pollute and corrode the surface of the workpiece; has stable performance, high temperature resistance, aging resistance, and is not easy to deteriorate; easy to prepare and transport And storage, safe use; raw materials are easy to get, and the cost is low. [0003] Generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/60C22F1/04
CPCC22F1/002C22F1/04
Inventor 邬全法
Owner 安徽东星汽车部件有限公司
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