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Medium-frequency heating device for end parts of steel bar and steel pipe

A heating device and steel pipe technology, applied in induction heating devices, induction heating and other directions, can solve the problems of labor and time-consuming, long test period, etc., and achieve the effect of low technical requirements and prevention of sharp angle effect.

Inactive Publication Date: 2015-03-18
XI AN BANGHE ELECTRICAL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the method of adjusting the turn gap of the induction coil has been used to solve the problem, but this method has a long adjustment test cycle, which is even more inappropriate for many varieties, and is labor-intensive and time-consuming.

Method used

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  • Medium-frequency heating device for end parts of steel bar and steel pipe
  • Medium-frequency heating device for end parts of steel bar and steel pipe

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] This embodiment is aimed at an intermediate frequency heating device at the end of a steel rod and steel pipe, which consists of three parts: an induction device 1 , a feeding device 2 , and a cooling device 3 .

[0015] The cooling device 3 includes a ring pipe 301, an inlet and outlet pipe 302, and a bracket 303. The ring pipe 301 is fixed on one end of the inlet and outlet pipe 302 by welding, and the inlet and outlet pipe 302 is fixed on the top of the bracket 303. The ring pipe 301 and the inlet and outlet pipes 302 are all for hollow tubes.

[0016] The sharp corner effect of intermediate frequency heating at the end of steel rod and steel pipe is very common, because the head has sharp corners, the magnetic lines of force passing through the sharp corners are dense, the induced current density is large, and the induction heating s...

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Abstract

The invention relates to the field of medium-frequency heating of end parts of a steel bar and a steel pipe, in particular to a medium-frequency heating device for the end parts of the steel bar and the steel pipe. The medium-frequency heating device comprises an induction device (1) and a feeding device (2), and is characterized by further comprising a cooling device (3), wherein the cooling device (3) comprises an annular pipe (301), a water inlet and outlet pipe (302) and a bracket (303); the annular pipe (301) is fixedly arranged at one end of the water inlet and outlet pipe (302) by welding; the water inlet and outlet pipe (302) is fixedly arranged at the top end of the bracket (303). According to the medium-frequency heating device, the shape of an original coil is not changed, gaps between turns of the coil do not need to be adjusted, and the position of the annular pipe can be axially adjusted for workpieces with different heating length requirements, so that the annular pipe is always in contact with the workpiece, the entire temperature of the workpiece tends to be consistent, both labor and time are saved, technical requirements are not high, a simple method for preventing a horn effect is provided, and the problem is well solved.

Description

technical field [0001] The invention relates to the field of intermediate frequency heating at the ends of steel rods and steel pipes, in particular to an intermediate frequency heating device for the ends of steel rods and steel pipes. Background technique [0002] The sharp corner effect of intermediate frequency heating at the end of steel rod and steel pipe is very common, because the head has sharp corners, the magnetic lines of force passing through the sharp corners are dense, the induced current density is large, and the induction heating speed is fast, causing the sharp corners to overheat or even burn. In the past, the method of adjusting the turn gap of the induction coil has been used to solve the problem, but this method has a long adjustment test cycle, which is even more inappropriate for many varieties, and is labor-intensive and time-consuming. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned defici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/10
Inventor 魏雷魏云朋
Owner XI AN BANGHE ELECTRICAL EQUIP
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