Feather hydrolysate quenching agent and preparation method thereof

Abstract

The invention discloses a feather hydrolysate quenching agent which is characterized by being prepared from the following raw materials in parts by weight: 6 to 10 parts of feather hydrolysate, 0.2 to 0.4 part of tartaric acid, 0.05 to 0.1 part of sodium pyrrolidonecarboxylate, 0.1 to 0.2 part of pentaerythritol oleate, 0.2 to 0.4 part of glycerol mono-oleate, 0.1 to 0.2 part of Tween-80, 0.3 to 0.5 part of disodium cocoyl glutamate, 0.5 to 1 part of sodium bicarbonate, 0.1 to 0.2 part of sodium benzoate, 0.3 to 0.5 part of borax, 0.5 to 1 part of urea, 0.1 to 0.2 part of potassium sorbate and 80 to 100 parts of water. According to the preparation method provided by the invention, the feather hydrolysate is taken as a main raw material for preparing the quenching agent, the raw material is wide in source and is natural and free from contamination, the preparation technology is simple, the environmental compatibility is good, the product cooling performance can be effectively improved, the quenching evenness is excellent, the problems of workpiece cracking, deformation and the like caused after quenching can be avoided, resources are saved, waste is changed into valuable, the utility value is relatively high, and industry policies of environmental protection and carbon emission reduction are meet.

Description

technical field [0001] The invention relates to heat treatment technology, in particular to a feather hydrolyzate quenching agent 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 stress,...

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