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High-chromium cast iron quenching agent and preparation method thereof

A high-chromium cast iron and quenching agent technology, applied in the field of heat treatment, can solve the problems of fast cooling speed and workpiece cracking, and achieve the effects of no oil fume, less volatilization, and reasonable cooling speed distribution

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] A quenching agent for high chromium cast iron, prepared from the following components by weight (kg):

[0021] Hydroxypropyl Distarch Phosphate 0.8, Dimethicone 0.08, Hydroxypropyl Methylcellulose 1.5, Sodium Chloride 4, Citric Acid 0.4, Carbomer 0.4, Propylene Glycol 0.8, Sorbitol 1.5, Nutmeg Isopropyl acid 0.8, propylene glycol alginate 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 lauroyl sarcosi...

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PUM

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Abstract

The invention discloses a high-chromium cast iron quenching agent. The high-chromium cast iron quenching agent is prepared from the following raw materials in parts by weight: 0.5-1 part of hydroxy propyl distarch phosphate, 0.05-0.1 part of dimethyl polysiloxane, 1-2 parts of hydroxy propyl methyl cellulose, 3-5 parts of sodium chloride, 0.3-0.5 part of citric acid, 0.3-0.5 part of carbomer, 0.5-1 part of propylene glycol, 1-2 parts of sorbitol, 0.5-1 part of isopropyl myristate, 1-2 parts of propylene glycol alginate, 3-5 parts of auxiliaries and 70-80 parts of water. The quenching agent is reasonable in distribution of cooling speed and good in the cooling uniformity and is capable of ensuring the uniform consistency of internal organizations of the work-piece and the performance homogeneity effectively; the quenching agent is suitable for quenching treatment of high-chromium cast iron and partial high-middle carbon wear-resistant steel parts.

Description

technical field [0001] The invention relates to heat treatment technology, in particular to a high-chromium cast iron 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] G...

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