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Hole pattern for producing I-shaped steel and rolling method of I-shaped steel

A technology of pass and section steel, which is applied in the direction of metal rolling, metal rolling, metal rolling racks, etc., can solve the problem of high cost of recycling waste rails, and achieve the effects of saving resources, reducing costs, and excellent mechanical properties

Active Publication Date: 2021-12-17
唐山同创电力设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned defects or deficiencies in the prior art, the present invention aims to provide a pass for producing I-shaped steel and a rolling method for I-shaped steel, so as to solve the problem of high cost of recycling scrap rails

Method used

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  • Hole pattern for producing I-shaped steel and rolling method of I-shaped steel
  • Hole pattern for producing I-shaped steel and rolling method of I-shaped steel
  • Hole pattern for producing I-shaped steel and rolling method of I-shaped steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1, a pass for producing I-shaped steel, including: a first pass pass 100, the first pass pass 100 includes a first upper rolling groove 110 and a first lower rolling groove 120, two The openings of the first upper rolling groove 110 are arranged opposite to each other. The opening width of the first upper rolling groove 110 is smaller than the opening width of the first lower rolling groove 120. The first upper rolling groove 110 is used to match the outer end surface of the rail head 11 of the scrap rail. The first lower rolling groove 120 is used for mating with the outer end surface of the rail bottom 13 of the rail.

[0058] Please refer to the attached figure 1 As shown, the opening of the first upper rolling groove 110 and the first lower rolling groove 120 are opposite to each other, and the opening space formed is used for the vertical passage of the scrap rail, that is, the vertical rolling of the scrap rail is carried out, and the opening of the fir...

Embodiment 2

[0072] Embodiment 2, on the basis of Embodiment 1, it also includes a second pass pass 200, and the second pass pass 200 includes a second upper rolling groove 210 and a second lower rolling groove 220, and the openings of the two are opposite to each other. , the second upper rolling groove 210 and the second lower rolling groove 220 are symmetrically arranged with the center line of the opening space of the two as the symmetrical axis, and the second upper rolling groove 210 is used for connecting the rail head 11, the rail waist 12, the rail The end face of the side wall on the same side of the bottom 13 is mated, and the second lower rolling groove 220 is used for mating with the side wall end of the other side of the rail head 11 , the rail waist 12 , and the rail bottom 13 on the same side.

[0073] Please refer to figure 2 As shown, the opening of the second upper rolling groove 210 and the second lower rolling groove 220 are opposite to each other, and the opening spa...

Embodiment 3

[0076] Embodiment 3, on the basis of Embodiment 1 or Embodiment 2, the seventh pass pass 700 is also included. The seventh pass pass 700 is closed, the cross section of its internal space is I-shaped and the The internal space is divided into the seventh rail head 11 rolling part 701, the seventh rail waist 12 rolling part 702 and the seventh rail bottom 13 rolling part 703, the seventh rail head 11 rolling part 701, the seventh rail waist 12 The rolling part 702 and the rolling part 703 of the seventh rail bottom 13 are respectively matched with the scrap rail head 11, the rail waist 12 and the rail bottom 13, and the seventh pass pass 700 is rolled toward the seventh rail bottom 13. 703 tilt;

[0077] Specifically, please refer to Figure 7 As shown, the pass pattern 700 of the seventh pass makes the waste rail billets pass through obliquely after rough rolling, so that the two ends of the waste rail billets are collected more evenly, and it is also used for fine rolling of...

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Abstract

The invention provides a hole pattern for producing I-shaped steel and a rolling method of the I-shaped steel. The method involves the multiple-pass hole pattern, and a heated waste steel rail is subjected to reasonable rerolling through the multiple-pass hole pattern, the rail head and rail bottom deformation is conducted at first, and then overall deformation is conducted, so that the I-shaped steel is finally formed. The purpose of efficient and green recycling is achieved, resources are saved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of metal processing, and in particular relates to a rolling method for producing a pass for producing I-shaped steel and the I-shaped steel. Background technique [0002] With the rapid development of today's railway track transportation industry, there are a large number of rails replaced by railways every year and unqualified rails in the process of producing rails. The reuse of these scrap rails is a very valuable and promising topic. [0003] The existing utilization of scrap steel rails mainly includes the following methods: (1) as scrap steel, reused after returning to the furnace for smelting; (2) making handicrafts; (3) making tools. [0004] The first reuse method is the mainstream, but this reuse method is difficult to fully utilize the alloy elements inside the rail and the existing value of the rail, and the cost is high and consumes energy. The amount of the second method is relatively small, and it is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/088B21B13/00
CPCB21B1/088B21B13/00Y02P70/10
Inventor 王新明
Owner 唐山同创电力设备有限公司
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