Toughening and quenching agent for steel heat treatment

Abstract

The invention discloses a toughening and quenching agent for steel heat treatment. The toughening and quenching agent is composed of the following raw materials of, by weight, 50-70 parts of hydrolyzed polymaleic anhydride, 20-34 parts of fluorocarbon, 14-27 parts of acrylic acid, 12-15 parts of polyvinyl acetate, 10-18 parts of triethanolamine, 5-11 parts of sodium lauryl sulfate, 5-10 parts of borax, 7-10 parts of glycerol, 8-12 parts of soybean oil, 4-11 parts of turpentine, 2-9 parts of sodium hydroxide, 3-6 parts of alumina, 7-12 parts of methyl cellulose, 7-14 parts of sodium carbonate,4-7 parts of sulfonated castor oil, 10-15 parts of polyvinyl alcohol and 70-90 parts of distilled water. The raw materials are easy to obtain, the toughening and quenching agent is scientific in formula, safe and environmentally friendly, slight in environment pollution and low in cost, the cooling rate at high temperature can be effectively increased, the low-temperature cooling time is prolonged, steel cracking is prevented, and the lightness and toughness of steel are greatly improved.

Description

technical field [0001] The invention relates to the field of iron and steel casting, in particular to a toughening and quenching agent for iron and steel heat treatment. Background technique [0002] In order to improve the properties of metal materials such as steel, it is necessary to heat treat metal workpieces. The commonly used heat treatment processes include quenching, tempering, annealing, normalizing and other heat treatment methods. Among them, quenching refers to, for example, rapidly cooling a workpiece heated to an austenite state at a speed above the critical cooling rate to form a quenched structure such as martensite. After quenching, the hardness of the workpiece can be increased. [0003] Although the quenching agent has a variety of excellent characteristics, there are still defects in use. For example, the amount of quenching agent used is relatively high, which cannot effectively shorten the cooling time at high temperature, and cannot slow down the cool...

AI Technical Summary

Problems solved by technology

[0003] Although the quenching agent has a variety of excellent characteristics, there are still defects in use. For example, the amount of quenching agent used is relatively high, which cannot effectively shorten the cooling time at high temperature, and cannot slow down the cooling rate at low temperature, resulting in cracking of the workpiece. The aging resistance is weak, and with the increase of the number of uses, the performance changes to a greater degree, etc.