Heater of metal cylinder

A heating device and metal cylinder technology, applied in induction heating devices, induction heating, heat treatment furnaces, etc., can solve the problems of undiscovered, long time to manufacture, expensive, etc., to achieve maintenance life, short-term replenishment is easy, suitable for long-term effect used

Inactive Publication Date: 2005-08-10
DAI ICHI HIGH FREQUENCY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although in the case of induction heating it is desirable, if possible, to use rolls composed of an electrical insulator such as alumina, no material capable of withstanding high temperatures for long periods of time has been found within the range of insulating materials and poor conductors. Suitable material for contact rotation at speed
In addition, alumina and the like are not only difficult and expensive to prepare and process parts of the desired size, but also take a long time to manufacture

Method used

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  • Heater of metal cylinder
  • Heater of metal cylinder
  • Heater of metal cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] The metal cylinder heating device 40 and the metal cylinder heating device 70 mentioned above were manufactured as a trial, and the insulation state of the short bushing, the vibration of the back-up roller under no load and load, and the number of times of use until spark marks were found were investigated. The temperature of the intermediate bearing portion 72 is also measured for the metal cylinder heating device 70 .

[0108] The core parts 51, 61 of the support rollers 50, 60 of the metal cylinder heating device 40 are made of JIS / SCM440, the outer diameter is 120mm, and the length is 1920mm; the insulating coating layer is made of alumina and has a thickness of 0.3mm. Formed by spraying.

[0109] The short sleeves 52 and 62 are made of JIS / SUS304, have an outer diameter of 150 mm, an inner diameter of 120 mm, and a length of 155 mm. In addition, the length of one arranged at one end is only half.

[0110] The core members 81, 91 of the support rollers 80, 90 of ...

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Abstract

To form each receiving roller with an inexpensive metal material easy to purchase and to compose a heating device with a structure capable of preventing spark between workpiece receiving rollers for providing long-term durability, in a heating device of a metal tube body for induction-heating the total length of a workpiece while rotatably supporting it with two receiving rollers. This metal tube body heating device 40 is equipped with: the receiving rollers 50 and 60 for mounting the metal tube body 10 in a manner capable of horizontally and rotatably transmitting it; roller driving devices 25-26 for rotatably driving them by pivoting them; and induction heating devices 21-22 for induction-heating the total length of the metal tube body 10. The rollers 50 and 60 are composed of: metallic core members 51 and 61; a plurality of metallic short sleeves 52 and 62 each having an axially split form; and spacers 53 and 63 serving as mutual insulation thereof.

Description

technical field [0001] The present invention relates to a heating device for a metal cylinder that heats a metal cylinder to a high temperature while rotating the shaft of the metal cylinder. Specifically, it relates to a heating device for a metal cylinder that heats by induction heating. [0002] Such a heating device for a metal cylinder can apply centrifugal force to the content in the metal cylinder while heating the metal cylinder, which is convenient when, for example, coating the inner peripheral surface of the metal cylinder with a self-fused alloy is processed. Background technique [0003] It is known that when applying a self-fluxing alloy coating to the inner surface of a metal cylinder, the metal cylinder is filled with self-fluxing alloy powder, and the metal cylinder is rotated on its axis, that is, the metal cylinder is rotated around the axis. , a so-called one-step method (one-step method) operation method of heating once to melt the powder in the metal cy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/10C21D1/42C21D9/08H05B6/02H05B6/30
CPCY02P10/25
Inventor 渡边康男多田文明西马场和典矢田部宪志宮川忠伸
Owner DAI ICHI HIGH FREQUENCY
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