Quenching medium containing aloe extract and preparation method thereof

Abstract

The invention discloses a quenching medium containing aloe extract. The invention is characterized in that the quenching medium is prepared from the following raw materials in parts by weight: 6-10 parts of aloe extract, 1-2 parts of hydroxypropyl methylcellulose, 0.3-0.5 part of hydroxyethyl cellulose, 0.05-0.1 part of gamma-polyglutamic acid, 0.5-1 part of glycerol, 0.5-1 part of sodium bicarbonate, 0.5-1 part of sodium lactate, 1-2 parts of potassium sodium tartrate, 0.1-0.2 part of polyoxypropylene glycerol ether, 0.1-0.2 part of sodium lauroyl hydroxy-ethyl sulfonate, 0.3-0.5 part of castor oil polyethenoxy ether, 0.1-0.2 part of sodium benzoate and 80-100 parts of water. The quenching medium uses the aloe extract as the main raw material, has favorable cooling performance, can effectively reduce the quenching distortion of the workpiece, and avoids the cracking and soft spots of the workpiece; and the processed workpiece has the advantages of high hardness and deep hardening layer. The quenching medium has the advantages of favorable rust resistance, favorable corrosion resistance, favorable bactericidal property, stable performance, fewer pollution emissions and favorable environmental compatibility, and conforms to the industrial policies on environmental protection and emission reduction.

Description

technical field [0001] The invention relates to heat treatment technology, in particular to a quenching agent containing aloe extract and a preparation method thereof. Background technique [0002] Quenching medium in heat treatment production directly affects the performance of parts after quenching, and is a key factor affecting product quality. Commonly used quenching media mainly include water, aqueous solution, oil, etc. Among them, quenching oil is very polluting to the environment, and it is easy to cause fire during quenching, so it is difficult to meet the requirements of safety and environmental protection. [0003] Water is a quenching medium with strong cooling capacity. It has wide sources, low price, stable composition and not easy to deteriorate. The disadvantage is that the workpiece is prone to "soft spots" during the cooling process, and in the martensitic transformation temperature zone, due to too fast cooling, it is easy to generate a large internal str...

AI Technical Summary

Problems solved by technology

The disadvantage is that the workpiece is prone to "soft spots" during the cooling process, and in the martensitic transformation temperature zone, due to too fast cooling, it is easy to generate a large internal stress, resulting in deformation or even cracking of the workpiece

Part of the water-based quenching agent adds an appropriate amount of salt and alkali to the water, so that after the high-temperature workpiece is immersed in the cooling medium, crystals of salt and alkali can be precipitated in the steam film stage and burst immediately, thereby destroying the steam film and shattering the surface oxidation of the workpiece. Quenching agent can improve the cooling capacity of the medium in the high temperature area, but this kind of quenching agent is highly corrosive and affects the cleanliness of the production environment