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Quenching medium

A technology of quenching medium and mass percentage, applied in the direction of quenching agent, heat treatment equipment, manufacturing tools, etc., can solve the problems of production and life safety hazards, affect the appearance of steel, corrosion and rust, etc., achieve low cost, avoid workpiece cracking, The effect of grain refinement

Active Publication Date: 2016-07-27
玉环豪坤高中频有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, steel is easily corroded and rusted in surrounding media such as carbon dioxide, oxygen, water, and acid during storage, transportation, and use.
Corrosion not only causes waste of steel, affects the appearance of steel, but also causes safety hazards in production and life

Method used

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  • Quenching medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0069] Embodiment 1, a quenching medium, which contains the following components in terms of mass percentage: zinc chloride: 0.5-10%; sodium hydroxide: 1-15%; saponification agent: 0.01-5%; imported quenching aid : 0.01-5%; water: balance.

Embodiment approach 2

[0070] Embodiment 2 is the same as Embodiment 1, the difference is that, in terms of mass percentage, the saponification agent contains the following components: nonionic surfactant: 3-5%; anionic surfactant: 4.5-10%; fluidizing agent : 4-8%; anhydrous sodium sulfate: the balance.

Embodiment approach 3

[0071]Embodiment 3, the same as Embodiment 2, the difference is that the nonionic surfactant is selected from C12-C18 fatty alcohol polyoxyethylene ether, C12-C14 alkyl glycoside, C12-C18 alcohol and ethylene oxide / Condensate of propylene oxide block copolymer, any one or mixture of two or more in C8-C20 branched chain alcohol polyoxyethylene ether; The anionic surfactant is selected from: C12-C18 fatty acid soap, Any one or a mixture of two or more of C11-C18 alkylbenzene sulfonate, C12-C18 alkyl alkoxy sulfate, sodium α-alkenyl sulfonate, and C14-C18 fatty acid methyl ester sulfonate.

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Abstract

The invention provides a quenching medium. The quenching medium is prepared from, by mass, 0.5-10% of zinc chloride, 1-15% of sodium hydroxide, 0.01-5% of a saponifying agent, 0.01-5% of imported quenching auxiliaries and the balance water. The quenching medium has a high cooling speed at the high-temperature stage, and the cooling speed is about 338 DEG C / s; the cooling speed is about 102 DEG C / s at the low-temperature stage; and therefore cracking of components can be effectively prevented, ingredients are simple, preparation is easy, and the quenching medium is low in toxin, environment-friendly, low in cost, easy to operate and high in corrosion inhibiting efficiency and has good application prospects.

Description

technical field [0001] The invention relates to the field of metal heat treatment, in particular to an aqueous quenching medium. 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, the quenching of steel is to heat the steel to a temperature above the critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel), keep it warm for a period of time to make it fully or partially austenitized, and then cool it at a rate greater than the critical cooling rate. A heat treatment process in which the cooling rate is rapidly cooled to below Ms (or isothermal near Ms) for martensite (or bainite) transformation. In the quenching process, the cooling process of the workpiece is generally divided into three stages, that is, the first sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/60
CPCC21D1/60
Inventor 梁辉章江阳飞其他发明人请求不公开姓名
Owner 玉环豪坤高中频有限公司