Special equipment for two-medium quenching heat treatment and cooling and technology of equipment

A technology of heat treatment cooling and dual medium quenching, applied in heat treatment equipment, quenching agent, quenching device, etc., can solve the problems of low success rate, large error, difficult operation, etc., achieve a high degree of automation, avoid deformation and cracking, labor low intensity effect

Inactive Publication Date: 2015-07-01
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, manual control of the time of steel parts in water and the process of transferring them into oil is still adopted, which is difficult to operate, with large errors and low success rate

Method used

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  • Special equipment for two-medium quenching heat treatment and cooling and technology of equipment
  • Special equipment for two-medium quenching heat treatment and cooling and technology of equipment
  • Special equipment for two-medium quenching heat treatment and cooling and technology of equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The ball mill is a crushing and grinding equipment used in the production of thermal power plants, cement, mining, chemical, metallurgical and other enterprises. The liner is used to protect the cylinder from direct impact and friction of the grinding body and materials. Form the liner to adjust the movement state of the grinding body to enhance the crushing effect of the grinding body on the material, which helps to improve the grinding efficiency of the ball mill, increase the output, and reduce the metal consumption.

[0054] The liner is one of the most important working parts in the normal operation of the ball mill, and it is also a vulnerable part.

[0055] A medium-alloy steel liner plate made of ZG40Cr5MoRE, with a thickness of 20mm, after heating and heat preservation to form austenite, put it into the water tank of the special equipment for dual-medium quenching heat treatment and cooling provided by the present invention, and press the start button on the con...

Embodiment 2

[0058] A stamping die made of T8 steel, the thickness of the thickest part is 30 mm, after heating and heat preservation to form austenite, put it into the water tank of the special equipment for dual-medium quenching heat treatment and cooling provided by the present invention, and press the control cabinet 15 at the same time Press the start button on the button, and the single-chip microcomputer automatically delays for 2 seconds to ensure that the stamping die enters the net basket 12 automatically due to the slide plate 2 under the action of gravity; The time is 6 seconds, using the up, down, up, down, up movement method; the residence time in the oil is 100 seconds, using the up and down repeated movement method; then move the oil up, stay in the air, and wait for it to be removed Walk. During the cooling process, the stamping die in the supercooled austenite state automatically enters the oil from the water at a slightly higher temperature than Ms, realizing the water q...

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Abstract

The invention relates to special equipment for two-medium quenching heat treatment and cooling and a technology of the equipment. The equipment comprises landing legs, a sliding plate, a separation plate, a box plate, a slotted-angle shelving, a roller seat, a pull rope, guide rails, a guide roller, a net basket, a rope reeling roll, a stepping motor and a control cabinet, wherein the box plate and the slotted-angle shelving are welded to form a quenching cooling tank; the quenching cooling tank is supported by the landing legs; the separation plate is welded in the quenching cooling tank, and divides the quenching cooling tank into a water tank and an oil tank with the lower parts communicated; the lower part the water tank is welded with the sliding plate; the sliding plate is placed obliquely; steel is heated and subjected to heat preservation to form austenite, then is put in the water tank, and enters the net basket via the sliding plate; and the net basket and the steel in the net basket move up into oil from water through a lifting mechanism under control of the control cabinet, so that the water quenching and oil cooling two-medium quenching technology is achieved. According to the equipment and the technology, quenching deformation and cracking of the steel can be avoided effectively; an automation degree is high; the labor intensity is low; brine and oil two-medium quenching and brine-oil-air three-medium quenching can be achieved; and the equipment and the technology have broad market prospects.

Description

technical field [0001] The invention belongs to the field of metal heat treatment, and specifically relates to a dual-medium quenching heat treatment cooling special equipment and a process thereof, which are used for quenching and cooling steel parts such as thin-walled and complex structures, and can effectively avoid quenching deformation and cracking thereof. Background technique [0002] The quenching of steel is to heat the steel to a certain temperature above the critical temperature in solid state, hold it for a period of time to form austenite, and then immerse it in the quenching medium to prevent it from undergoing high-temperature transformation in a rapid cooling method greater than the critical speed. The low-temperature transformation zone below Ms is transformed into a heat treatment process of martensite. [0003] Quenching can improve the hardness and wear resistance of steel parts, so it is widely used in the heat treatment of various tools, measuring tool...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D1/63C21D1/58C21D1/60C21D1/613C21D6/00
Inventor 刘群山
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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