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Method for rolling steel rail by universal rolling mill

A universal rolling mill, rail technology, applied in the direction of metal rolling, metal rolling, rolls, etc.

Inactive Publication Date: 2012-11-14
PANZHIHUA IRON AND STEEL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to solve or at least alleviate the scale bonding produced by the rolling of rails using universal rolling mills

Method used

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  • Method for rolling steel rail by universal rolling mill
  • Method for rolling steel rail by universal rolling mill

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Embodiment Construction

[0019] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.

[0020] In the present invention, if there is no explanation to the contrary, the directional words used such as "up, down, left, right" usually refer to up, down, left, and right as shown with reference to the drawings; "inside, outside" It refers to the inside and outside relative to the contour of each component itself.

[0021] The method for rolling a steel rail using a universal rolling mill of the present invention includes providing a lubricant to at least a part of the pass of the universal rolling mill during the rolling process.

[0022] By providing a lubricant to at least a part of the pass of the universal rolling mill, the contact state of the roll surface and th...

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Abstract

The invention discloses a method for rolling a steel rail by a universal rolling mill. The method comprises the step of providing a lubricant for at least part of a hole pattern of the universal rolling mill in a rolling process. With the adoption of the technical scheme, the metal mobility of R at an intersection on a rolled piece during rolling can be effectively improved by lubricating the hole pattern of the universal rolling mill, therefore, scale bond formed inside legs of the steel rail during rolling can be further effectively avoided.

Description

Technical field [0001] The invention relates to steel rail rolling, in particular to a method for rolling steel rails using a universal rolling mill. Background technique [0002] Double-slope steel rails (such as GB60, UIC60, GB43, etc.) refer to rails whose inner legs include two plane rails that intersect in a smooth transition. Such double-slope rails account for more than 85% of domestic production. For double-slope rails, universal rolling mills are usually used for rolling. Such as figure 1 As shown, the universal rolling mill includes an upper horizontal roll 1, a lower horizontal roll 2 and a pair of vertical rolls 3. During the rolling (especially finishing rolling) process, the intersection of the two planes on the inner side of the leg is prone to the phenomenon of oxide scale bonding. Therefore, there is a problem in the prior art that the product surface has defects. Summary of the invention [0003] The purpose of the present invention is to solve or at least alle...

Claims

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Application Information

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IPC IPC(8): B21B27/10
Inventor 陶功明赵云陈崇木文本超符晓群蒲礼国
Owner PANZHIHUA IRON AND STEEL