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A method for forming twisted rolls

A roll and torsion sleeve technology, applied in the direction of roll, metal rolling, metal rolling, etc., can solve the problems of increasing manufacturing costs, and achieve the effects of prolonging service life, eliminating indentation, and small aspect ratio

Active Publication Date: 2016-05-25
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the production process of ?85mm-?100mm stainless steel bars, the twisted rolls are scrapped after being used once. One roll is 14,000 yuan after it is formed, and a set of 2 rolls is assembled. The processing cost is 8,000 yuan. A set of twisted rolls totals The cost is about 44,000 yuan, and a set of rolls producing 6,000 tons of bars will be scrapped, and the consumption of 7.3 yuan per ton of steel will increase the manufacturing cost

Method used

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  • A method for forming twisted rolls

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Embodiment 1

[0026] The production line of the two-roller horizontal rolling mill of the Taiyuan Iron and Steel Stainless Steel Factory is transformed, and the discarded high-line rolls are transformed into twisted rolls by using the method of the invention. The forming method of the twisted roll is:

[0027] 1. Process the scrapped high-line roll into a ladder shape;

[0028] The inner diameter of the upper and lower rolls is 420mm, and two stepped holes are processed on the upper roll, the diameter of the first stepped hole is 306mm, and the diameter of the second stepped hole is 264mm; The hole diameter is 304mm, and the hole diameter of the second stepped hole is 264mm.

[0029] 2. According to the angle of torsion inclination, the torsion sleeve of wear-resistant material is made, and the interference fit is embedded on the roll.

[0030] Use wear-resistant material tool steel to process the torsion sleeve; spacer sleeve and labyrinth ring can be made of ordinary steel. ℃, interfer...

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Abstract

The invention discloses a forming method of a torsion roll, which comprises (1) processing the discarded high-line roll into a stepped shape; (2) processing a torsion sleeve, a spacer sleeve, and a labyrinth ring; (3) sequentially following the upper roll torsion sleeve , Isolation sleeve, labyrinth ring, lower roller torsion sleeve, isolation sleeve, labyrinth ring. The invention realizes the purpose of reusing waste rolls through inserts, reducing the cost of the twisted rolls, improving the wear resistance of the twisted rolls, and prolonging the service life of the twisted rolls. After using the device, the bar production cost is saved, and the defect of high roll consumption caused by the poor wear resistance of the torsion roll is solved, creating considerable benefits for the enterprise.

Description

technical field [0001] The invention relates to a forming method of twisted rolls, which belongs to the field of rolling equipment. Background technique [0002] The rough rolling mill of Taiyuan Stainless Steel Wire Rod Factory is composed of four 480mm two-roll horizontal rolling mills. When producing ? , The 2# rolling mill adopts twisting rolls to twist the rolled piece into a 90° angle and enter the finished product stand rolling mill. [0003] In the production process of ?85mm-?100mm stainless steel bars, the twisted rolls are scrapped after being used once. One roll is 14,000 yuan after it is formed, and a set of 2 rolls is assembled. The processing cost is 8,000 yuan. A set of twisted rolls totals The cost is about 44,000 yuan, and a set of rolls producing 6,000 tons of bars will be scrapped, and the consumption of 7.3 yuan per ton of steel will increase the manufacturing cost. Contents of the invention [0004] The invention aims to provide a forming method of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B27/05
Inventor 石奇良于玉柱黄昌义芦涛巩玉玲
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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