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Suspension type workpiece air cooling device

A hanging workpiece and air-cooling device technology, which is applied in the field of metal heat treatment equipment, can solve the problems of inconvenience and difficulty in increasing the cooling speed, and achieve the effects of increasing the cooling speed, preventing pressure drop and uneven pressure, and improving production efficiency

Inactive Publication Date: 2015-09-23
QINHUANGDAO DEV ZONE CHUNGUANG CASTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This fast cooling device for heat treatment still has the problem that the cooling rate is difficult to increase; and the cooling chamber is completely independent, which is not convenient for combining with other equipment to form a continuous production line for high-efficiency work

Method used

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  • Suspension type workpiece air cooling device
  • Suspension type workpiece air cooling device
  • Suspension type workpiece air cooling device

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Embodiment Construction

[0015] The specific embodiment of the present invention will be described with reference to the accompanying drawings.

[0016] As shown in the accompanying drawings, the suspended workpiece air cooling device includes a cooling chamber 1, which is in the shape of a vertical rectangular box and is welded with high-quality steel and steel plates. The front and back of the cooling chamber 1 are equipped with workpiece inlets and outlets and equipped with workpiece inlets and outlets 9 respectively. Each workpiece inlet and outlet 9 is equipped with a pneumatic or hydraulic drive device to realize the opening and closing of the workpieces inlet and outlet. The elongated blowing boxes 2 with the upper end closed are installed vertically inside the cooling chamber 1, arranged in pairs left and right, as in the embodiment of the drawings, the blowing boxes 2 arranged in pairs left and right are arranged in multiple pairs in the cooling chamber 1. The relative inner side of each blow...

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Abstract

A suspension type workpiece air cooling device comprises blowing fans and a cooling chamber. Workpiece entrances and exits are arranged on the front face and the back face of the cooling chamber respectively. Blowing boxes are arranged in the cooling chamber left and the right in pairs. The inner side of each blowing box is connected with an air collection pipe with spray holes. The blowing fans are provided with blowing pipelines. Air outlets of the blowing pipelines are connected with the lower ends of the blowing boxes. An air-induced box is arranged on the upper portion of the cooling chamber. An air outlet of the air-induced box is connected with an air-induced pipeline. An air outlet of the air-induced pipeline is provided with an air-induced fan. The suspension type workpiece air cooling device is especially suitable for continuous and fast air cooling processes of large suspension type workpieces, especially shaft rod workpieces and workpieces treated through normalizing and tempering heating, all points, in the axial direction, of the workpieces are cooled evenly, and guarantees are provided for improving the structure property of the workpieces, especially hardness evenness, after heat treatment is finished.

Description

technical field [0001] The invention relates to equipment for metal heat treatment, in particular to a hanging type workpiece air cooling device. Background technique [0002] The faster the cooling rate and the more uniform the cooling of the metal workpiece after normalizing heating, the more pearlite will be obtained, the finer the grain size, and the better the strength and hardness. At present, the method of normalizing cooling of suspended workpieces generally adopts the method of installing axial flow fans from both sides of the workpiece to directly supply air and exhaust air from the upper end; this method of air supply cannot make all points of the workpiece cool evenly, and thus cannot guarantee the process parameters of the workpiece. Another common cooling method is to use a centrifugal fan to supply air from the bottom of the cooling chamber to both sides, and then directly supply air to the workpiece through the bellows on the two sides through the orifice pla...

Claims

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Application Information

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IPC IPC(8): C21D1/28C21D1/00
Inventor 姜永录李国栋陈敏芳
Owner QINHUANGDAO DEV ZONE CHUNGUANG CASTING MACHINERY
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