Water-soluble degradable environment-friendly quenching agent and preparing method thereof

Abstract

The invention discloses a water-soluble degradable environment-friendly quenching agent. The water-soluble degradable environment-friendly quenching agent comprises, by weight, 2-6 parts of glycerin, 4-8 parts of rhamnolipid, 6-10 parts of oxalic acid, 2-4 parts of butyl hydroxy anisd, 8-12 parts of colza oil, 11-17 parts of cyclodextrin, 6-10 parts of pine oil, 15-25 parts of crylic acid, 7-8 parts of cane sugar, 0.5-0.8 part of 2-thioketone-tris-hydroxymethyl benzothiazoline and 10-20 parts of shell powder. Firstly, the oxalic acid, the butyl hydroxy anisd and the pine oil are dissolved in the glycerin, mixed liquid is obtained, then water is added, and the mixed liquid is transferred into a reaction kettle; after the reaction is finished, cooling is conducted, the rhamnolipid, the colza oil, the cyclodextrin and the cane sugar are added, and standing is conducted after stirring is conducted for 10 min; and then centrifuging is conducted, the supernate is taken after centrifuging, the crylic acid, the 2-thioketone-tris-hydroxymethyl benzothiazoline and the shell powder are added, after uniform stirring, paraffin wax oil is used for sealing after temperature rising, heat preservation and cooling, and the water-soluble degradable environment-friendly quenching agent is obtained. The prepared quenching agent has good water solubility, and is ecologically degraded, and pollution to the environment is weak.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a water-soluble, degradable and environment-friendly quenching agent. 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 st...

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