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Quenching system and method for box-type workpieces

A cooling system and workpiece technology, applied in the field of quenching cooling system, can solve the problems of poor fluidity of quenching fluid and uneven temperature, and achieve the effects of low cost, improving quenching efficiency and reducing speed loss

Pending Publication Date: 2020-06-12
马鞍山旭阳机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of poor fluidity and uneven temperature of the quenching liquid in the quenching pool in the prior art, the present invention provides a quenching and cooling system for box-type workpieces and a quenching and cooling method thereof. Flow tubes, quenching liquid circulation channels are formed between the layers of the deflector, making the cost low and occupying a small space, which can improve the utilization efficiency of the quenching pool

Method used

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  • Quenching system and method for box-type workpieces
  • Quenching system and method for box-type workpieces
  • Quenching system and method for box-type workpieces

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Embodiment 1

[0041] A kind of quenching cooling system that is used for box type workpiece in this embodiment, such as figure 1 As shown, it includes a quenching pool body 1, and the quenching pool body 1 is a hollow cuboid structure with an open top; as figure 2 As shown, the stirring device 3 is symmetrically installed on both sides inside the quenching pool body 1 from above, and is driven by the driving device 2, and the driving device 2 is installed on both sides of the top of the quenching pool body 1; the stirring device 3 is provided with a deflector 4, and the deflector 4 includes a deflector 41, and the deflector 41 is distributed symmetrically in three layers at the bottom of the quenching pool body 1, and is located at the height of the quenching liquid level 10 In the following positions, the flow guide tube is replaced by a symmetrically distributed multi-layer flow guide plate 41, and the quenching liquid circulation channel 40 is formed between each layer of the flow guide...

Embodiment 2

[0043] A kind of quenching cooling system that is used for box-type workpiece of the present embodiment, basic structure is the same as embodiment 1, difference and improvement are: as figure 2 As shown, the outlet of each deflector 41 is provided with a corresponding height restriction module 42 according to its depth, and the restriction module 42 is detachably installed at the outlet of the quenching liquid circulation channel 40, and the bottom of the restriction module 42 is arc-shaped And match with the shape of the quenching liquid circulation channel 40, to reduce the speed loss when the liquid flow collides with the limiting module 42, and increase the impact of the liquid flow on the vapor film on the surface of the workpiece; and the upper surface of the limiting module 42 is designed as a plane that can As a support platform that limits the lowest point of the box-type workpiece 9 in the quenching pool, unnecessary losses caused by the box-type workpiece 9 collidin...

Embodiment 3

[0045] A kind of quenching cooling system that is used for box-type workpiece of the present embodiment, basic structure is the same as embodiment 2, difference and improvement are: as figure 2 As shown, the stirring device 3 is controlled and started by the external control box 7. The stirring device 3 includes a connecting rod 31 and a propeller blade 32. The number of blades of the propeller blade 32 is 3 to 4, and the blade helical angle is 25 to 35°, the propeller blade 24 is an airfoil-type propeller, so that the stirring effect is better, thereby increasing the circulation velocity of the quenching liquid; Driven by the motor 21 on the device 2; the multilayer deflector 41 is used in conjunction with the propeller blade 32 facing the surface of the curved deflector 41, and the quenching medium can be transported to various positions in the quenching pool by the propeller blade 32, thereby effectively It solves the problem of circulation dead zone in the quenching pool ...

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Abstract

The invention discloses a quenching system and method for box-type workpieces, and belongs to the technical field of heat-treatment quenching equipment. According to the quenching system and method for the box-type workpieces, the quenching system comprises a quenching pool body, a stirring system and a hoisting system capable of hoisting the workpieces back and forth. Stirring devices are symmetrically mounted on the two sides of the interior of the quenching pool body from above. A guide device is arranged between the stirring devices and comprises a plurality of layers of guide plates whichare distributed symmetrically, and a liquid flow in a quenching pool is controlled by means of the thrust of propeller blades in the stirring system and quenching liquid channels formed between the multiple layers of guide plates. A circulating and cooling system is connected to the outside of the quenching pool. When the temperature of a quenching medium is higher than an upper limit of the optimal service temperature, the circulating and cooling system is started to realize circulation and cooling of the quenching liquid.

Description

technical field [0001] The invention relates to the technical field of heat treatment quenching and cooling equipment, in particular to a quenching and cooling system for box-type workpieces and a quenching and cooling method thereof. Background technique [0002] The heating and cooling speed in the heat treatment process is very important. For large workpieces, special-shaped parts, etc., for workpieces with design defects that are not conducive to heat treatment, the heating speed must be controlled within a certain range, otherwise the temperature difference between various parts of the workpiece will be too high Large, and produce thermal stress and deformation; the cooling rate needs to be selected according to different heat treatment methods. [0003] The order of cooling rate from large to small is: quenching, normalizing, tempering and annealing. The quenching of steel is to heat the steel to A c3 or A c1 Above the above temperature, after holding for a period o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/64C21D9/00
CPCC21D1/64C21D9/0025C21D9/0068
Inventor 刘清华吴轲源徐良乐吴高路徐良清王亮江裕恒斯庭智
Owner 马鞍山旭阳机械有限公司
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