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Tube and its manufacturing method

一种制造方法、管体的技术，应用在制造工具、其他家里用具、车削设备等方向，达到实现制造成本、制造工序简化的效果

Active Publication Date: 2010-09-22
ENDO MFG COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the metal pipe wall is thin, it is not easy to always make the surface shape of the metal pipe, for example concave
[0011] The above-mentioned current technology has problems from the viewpoint of stable mass production, especially in the case of mass production

Method used

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  • Tube and its manufacturing method
  • Tube and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0066] Next, it was confirmed that indentations were formed in a helical pattern on the surface of the metal tube 8 subjected to the spinning process on the bottomed blank tube 1 made of a plastically workable metal.

[0067] The material of the metal prototype 6 is SUS304 which is austenitic stainless steel. In addition, three stoppers 5 are arranged at equal intervals of 120 degrees on the outer periphery of the metal original body 6, and spinning is performed. The metal original body 6 is formed by rotating the bottomed blank tube 1 at a predetermined rotational speed while moving the stopper 5 at a predetermined moving speed and performing spinning.

[0068] The surface shape of the metal pipe 8 was measured with a surface roughness profile measuring device [product name: Surfcom 130A, manufactured by Tokyo Seiki Co., Ltd. (Tokyo, Japan)]. In other words, whether or not spiral-shaped indentations are formed on the surface shape of the metal pipe 8 is measured with a surfa...

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Abstract

Provided are a tube the endurance of which is improved and on the outer periphery surface or the inner periphery surface of which fine asperities are formed at an almost fixed interval in a simple process, and its manufacturing method. The tube is a metal tube which has a hollow metal tube body, the thickness of which is uniform from 20 to 50 [mu]m, and which is worked by spinning in which a metal original body (6) which is formed of metal and which is in a circular form is rotated about the central axis line of the metal original body (6) with a rotation support body (3), a top (5) arranged on the outer periphery of the metal original body (6) is pushed, and thus the metal original body is plastically worked. Fine asperities (12) are formed on the outer periphery surface or the inner periphery surface of the metal tube at an almost fixed interval. Both ends of the metal original body (6) subjected to spinning are cut, and thus a tube (11) is formed.

Description

technical field [0001] The present invention relates to a tube used in electrophotographic printers, fixing rollers of copiers, etc., and a manufacturing method thereof. In more detail, it is related with the tube used for a fixing roller etc. obtained by spinning, and its manufacturing method. Background technique [0002] A tube made of metal and having a through hole formed in the center is used, for example, as a tube for fixing of a laser beam printer or the like. This fixing tube is used differently in monochrome copiers, color copiers, color printers, and the like. In monochrome copiers, a method of fixing toner to paper with a heated roller (fixing roller) to fix images, characters, etc. is widely used. A fixing roller used for this kind of fixing is usually coated or coated with a fluororesin on the surface of a thin-walled metal tube. [0003] As a technique related to a metal pipe, a method of plastically working a metal plate to manufacture it has been propose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20
CPCB21D22/16G03G15/2053Y10T82/10B21D51/00G03G15/2098G03G15/26
Inventor 丸山胜敏
Owner ENDO MFG COMPANY
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