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Quenching agent for die steel and preparation method of quenching agent

A quenching agent and die steel technology, applied in the field of heat treatment, can solve problems such as fast cooling speed and cracking of workpieces, and achieve the effects of small heat treatment deformation, no oil fume, and improved working environment

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 the limitations of fast water cooling and easy cracking of the workpiece.

Method used

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Examples

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Embodiment Construction

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

[0020] A quenching agent for die steel, prepared from the following component raw materials in weight (kg):

[0021] Sodium molybdate 3, sodium chloride 4, sodium silicate 0.4, disodium hydrogen phosphate 0.15, octylphenol polyoxyethylene ether 0.8, sodium methylene dinaphthalene sulfonate 0.4, hydroxypropyl guar gum 1.5, carboxymethyl Sodium starch starch 0.8, oxalic acid 0.8, polymaleic anhydride 0.15, 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-liqu...

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PUM

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Abstract

The invention discloses a quenching agent for a die steel. The quenching agent is characterized by being prepared from the following raw materials in parts by weight: 2-4 parts of sodium molybdate, 3-5 parts of sodium chloride, 0.3-0.5 part of sodium silicate, 0.1-0.2 part of disodium hydrogen phosphate, 0.5-1 part of octyl phenol polyethylene ether, 0.3-0.5 part of sodium methylene dinaphthalene sulfonate, 1-2 parts of hydroxypropyl guar gum, 0.5-1 part of sodium carboxymethyl starch, 0.5-1 part of oxalic acid, 0.1-0.2 part of polymaleic anhydride, 3-5 parts of auxiliaries and 70-80 parts of water. The quenching agent disclosed by the invention is good in thermal treatment process performance, high in quenching degree, and small in thermal treatment deformation, the work-piece is high in hardness and abrasion resistance and suitable for the quenching treatment of the die steel.

Description

technical field [0001] The invention relates to heat treatment technology, in particular to a quenching agent for mold steel 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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IPC IPC(8): C21D1/60
CPCC21D1/60
Inventor 邬全法
Owner 安徽东星汽车部件有限公司
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