Production method for plate-bending hollow roll, plate-bending hollow roll, and device for steel plate production process

A manufacturing method and coiling technology, applied in the direction of manufacturing tools, metal rolling, metal rolling, etc., can solve the problems of low steel plate tension, unqualified products, and reduced yield, so as to improve the butt joint accuracy, eliminate transfer printing, The effect of improving tightness

Active Publication Date: 2015-11-04
PRIMETALS TECHNOLOGIES JAPAN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, in high-grade surface-treated steel sheets such as galvanized, this transfer appears clearly and becomes a cause of product failure.
[0010] In addition, in order to avoid the transfer of the weld line, there is a

Method used

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  • Production method for plate-bending hollow roll, plate-bending hollow roll, and device for steel plate production process
  • Production method for plate-bending hollow roll, plate-bending hollow roll, and device for steel plate production process
  • Production method for plate-bending hollow roll, plate-bending hollow roll, and device for steel plate production process

Examples

Experimental program
Comparison scheme
Effect test

Example

[0053]

[0054] use Figure 1 to Figure 4 The first embodiment of the method of manufacturing the plate bending hollow roll of the present invention will be described.

[0055] figure 1 It is a figure which shows the state after welding of the board bending hollow roll in Example 1.

[0056] Such as figure 1 As shown, the plate-rolling hollow roller is a cylindrical metal plate 13, and the butting left end surface 2a and the butting right end surface 2b of the metal plate 12 processed into a cylindrical shape are not interposed with welding material at the butting portion 1. The method is joined by laser welding.

[0057] Next, the manufacturing method of the board bending hollow roll of this invention is demonstrated.

[0058] First, the coiling process of bending a rectangular metal plate into a cylindrical shape is performed.

[0059] In addition to carbon steel, stainless steel, chromium steel reinforced with hardenability or wear resistance, or chromium-molybdenum steel can be us...

Example

[0094]

[0095] use Figure 5 and Image 6 The second embodiment of the method of manufacturing the plate bending hollow roller of the present invention will be described.

[0096] First, in the same manner as in Example 1, a bending process of bending a rectangular metal plate into a cylindrical shape was performed. In addition, it is preferable to perform spot welding or the like on the butt portion 1 of the cylindrical metal plate 12 on the side surface of the butt portion 1 to perform temporary fixation welding to be in a butt state.

[0097] Next, use Figure 5 The shown machining device 3b having a tapered end mill 3b1 performs butt processing on the butt portion 1 of the metal plate 12 to form a tapered gap with an interval of about 10 mm.

[0098] Here, for example Image 6 As shown, the angle θ of the taper is based on the angle when the point 8 is used as a reference to open radially toward both end faces (2a, 2b) of the metal plate 12, where the point 8 is spaced apart by ...

Example

[0109]

[0110] use Figure 7 The third embodiment of the method of manufacturing the plate bending hollow roller of the present invention will be described.

[0111] Figure 7 It is an explanatory diagram of the laser welding process performed by an arm-type robot.

[0112] First, in the same manner as in Example 1 and the like, a coiling process of bending a rectangular metal plate into a cylindrical shape is performed. In addition, it is preferable to perform spot welding or the like on the butt portion 1 of the cylindrical metal plate 12 on the side surface of the butt portion 1 to perform temporary fixation welding to be in a butt state. In addition, a machining device using a linear end mill 3a1 or a tapered end mill 3b1 is used to perform butt processing on the butt portion 1 of the metal plate 12 to form uniform or tapered gaps with an interval of approximately 10 mm.

[0113] Then, in the same way as in Example 1, the equipment used in image 3 C type fixing clamp 7 or Fig...

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Abstract

In the present invention, plate-bending processing in which a metal plate is bent into a cylindrical shape is performed. A butting left end surface (2a) and a butting right end surface (2b) of the metal plate (12) are subsequently tack welded by subjecting, to spot welding or the like, a side surface of a butt section (1). Thereafter, an end mill is used to subject the butt section (1) to joint processing, and an interval between the end surfaces is uniformly formed. The outer peripheral surface of the metal plate (12) which has been subjected to joint processing is then pressed by pressing bolts provided to a C-shaped fixation jig (7), to hold a gap in a reduced state. Thereafter, a laser beam welding device (6a) is used to perform laser beam welding on the butt section (1), and, as a result, the butt section (1) is joined, and the metal plate (12) bent into the cylindrical shape is formed into the cylindrical shape. Accordingly, a plate-bending hollow roll can be efficiently produced at low cost, while exhibiting a sufficient facility production capacity, said plate-bending hollow roll enabling the conveyance of steel plate with high surface quality, without having to imprint a roll-surface shape onto the steel plate to be conveyed.

Description

technical field [0001] The present invention relates to a manufacturing method of a plate coiling hollow drum, a plate coiling hollow drum, and a steel plate manufacturing process device, capable of conveying a steel plate while maintaining a higher surface quality of the steel plate in a steel plate conveying process of the steel plate manufacturing process, and reducing the weight of the hollow drum. manufacturing cost. Background technique [0002] In the steel sheet manufacturing process, a large number of transfer rollers are used to transfer the steel sheet. [0003] Among them, for the relatively large-diameter rollers, for the purpose of cost reduction, more hollow rollers are used instead of solid rollers, wherein the hollow rollers bend and weld plates to form a cylindrical shape. [0004] With the demand for advanced steel sheet surface quality, it is necessary to transfer the steel sheet in a state where the surface quality of the steel sheet is maintained highe...

Claims

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Application Information

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IPC IPC(8): B21B27/00B21C37/08B23K26/21
CPCB21C37/08B23K26/262
Inventor 池田博之末盛秀昭甲斐洋一吉尾史朗橘高和久山口孝幸会田孝幸藤原裕太星本达也
Owner PRIMETALS TECHNOLOGIES JAPAN LTD
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