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Shaft materials quenching method and device therefor

A technology of equipment and quenching box, applied in the field of quenching, which can solve the problems of increased temperature of shaft material, uneven cooling, difficult to produce products, etc.

Inactive Publication Date: 2007-05-23
河南中轴集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, quenching and high-temperature tempering are used for heat treatment and tempering of metals. The heating equipment used in quenching is a box-type furnace. The heating method is to fill a basket with the heated shaft material and put it into the box-type furnace for heating. , and then put the heated whole basket shaft material into the quenching medium for quenching; because this equipment uses thermal radiation to increase the temperature of the shaft material, the heating time is long, resulting in serious decarburization of the shaft material surface, so put it into the quenching medium After being immersed in the medium, due to the small gap between the shaft materials, they are not cooled uniformly in the quenching medium, resulting in uneven quenching hardness on the surface of the shaft materials; because the thickness of the quenching layer cannot be controlled, it is difficult for the product to meet the quality requirements, and it is also difficult to produce products that meet the requirements. Products requested by users

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  • Shaft materials quenching method and device therefor
  • Shaft materials quenching method and device therefor
  • Shaft materials quenching method and device therefor

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Embodiment

[0018] Embodiment: The quenching method of the present invention is as follows: the shaft material is heated in an induction device connected with an intermediate frequency power supply first, and the heated shaft material is quenched in a quenching medium. According to the size of the outer diameter of the shaft material, the heating time is controlled. The heating time of the shaft material with an outer diameter of 15-30mm is 1-3 minutes, and the heating time of the shaft material with an outer diameter of 31-50mm can be 4-5 minutes. The heating time of 80mm shaft material can be 6-8 minutes.

[0019] Using this method to quench the shaft material should use special equipment, this equipment includes intermediate frequency power supply 1, automatic control system 2, transmission system 9 and workbench 10, on the workbench 10 is equipped with pusher device 3, discharge material in sequence Table 4, induction device 5, discharge device 6 and material turning device 7, the low...

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Abstract

The invention discloses a method for quenching shafts, which is induction-heated with intermediate frequency and quenched in quenchant. A material pushing device, a placing board, an outleting device and a turning device is fixed sequentially on the benchboard of the equipment for quenching. A quenching box is fixed under the benchboard. A transmission chain is close to one end of the turning device. The inferior part of the transmission chain is in the quenching box. The transmission chain is driven by the drive system. The responding device is connected with intermediate frequency power, pushing device, sensing device, reversing device,quenching box and drive system are connected with adaptive control system. The method is easy to operate and can guarantee product quality.

Description

technical field [0001] The invention belongs to a quenching method, in particular to a quenching method for a shaft material with a diameter of 15-80 mm, and simultaneously relates to quenching equipment using the method. Background technique [0002] At present, quenching and high-temperature tempering are used for heat treatment and tempering of metals. The heating equipment used during quenching is a box-type furnace. The heating method is to fill a basket with the heated shaft material and put it into the box-type furnace for heating. , and then put the heated whole basket shaft material into the quenching medium for quenching; since this equipment uses thermal radiation to increase the temperature of the shaft material, the heating time is long, resulting in serious decarburization of the shaft material surface, so put it into the quenching medium After being immersed in the medium, due to the small gap between the shafts, they are not uniformly cooled in the quenching ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/28C21D1/10
CPCY02P10/25
Inventor 马海洋许春富许丹
Owner 河南中轴集团有限公司
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