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Production method of hot-rolled wire rod with diameter of 4.5 mm for drawing

A technology of hot-rolled wire rod and production method, applied in the direction of metal rolling, manufacturing calculation system, etc., which can solve the problems of many faults, low output, and low enthusiasm for Φ4.5mm hot-rolled wire rod, so as to increase production and reduce faults , saving annealing cost and drawing cost

Pending Publication Date: 2022-08-05
JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to produce Φ4.5mm hot-rolled wire rods for drawing, the applicant in this case is equipped with 10 finish rolling racks and 4 fixed-reducing mills. The enthusiasm of enterprises to produce Φ4.5mm hot-rolled wire rod is not high

Method used

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  • Production method of hot-rolled wire rod with diameter of 4.5 mm for drawing
  • Production method of hot-rolled wire rod with diameter of 4.5 mm for drawing
  • Production method of hot-rolled wire rod with diameter of 4.5 mm for drawing

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Embodiment Construction

[0015] The present invention will be further described in detail below with reference to specific embodiments.

[0016] The purpose of this application is to realize the production of hot-rolled wire rods with a diameter of 4.5 mm.

[0017] By optimizing the pass design of Φ4.5mm hot-rolled wire rod. To reduce failures and increase production. The system uses 10 finishing mills and 4 sizing and reducing mills to complete hot rolling.

[0018] The original production of Φ4.5mm hot-rolled wire rod, the finish rolling inlet is Φ18.55mm, the finish rolling outlet is Φ6.08mm, the fixed and reduced diameter size is 3.28*8.25-Φ4.87-4.51*4.96-Φ4.56, and the elongation is 1.241 / 1.256 / 1.079 / 1.057. With this pass system, there are many production failures.

[0019] Optimize the pass design of Φ4.5mm hot-rolled wire rod, adjust the finish rolling inlet from Φ18.55mm to Φ17.2mm, and adjust the finish rolling outlet size from Φ6.08mm to Φ5.5mm.

[0020] The corresponding rack numbers ...

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Abstract

The invention relates to a production method of a hot-rolled wire rod with the diameter of 4.5 mm for drawing, the hot-rolled wire rod is hot-rolled and formed by ten finishing mill groups and four sizing and reducing mills, the hole pattern type of the ten finishing mill groups is that circles and ellipses are alternated, the hole pattern type of a finish rolling inlet is phi 17.2 mm, the hole pattern type of a finish rolling outlet is phi 5.5 mm, and the hole pattern types of the four sizing and reducing mills are sequentially ellipses, circles, circles and circles. The outlet pass of the sizing and reducing unit is phi 4.5 mm; the reduction ratio of the sizing and reducing unit is 0.1471724 / 0.127509 / 0.125347 / 0.119775, and the reduction ratio of the sizing and reducing unit is 0.1471724 / 0.127509 / 0.125347 / Therefore, hot-rolled wire rods with the diameter being 4.5 mm can be produced smoothly, faults are reduced, and the yield is improved.

Description

technical field [0001] The invention relates to a production method of a hot-rolled wire rod, in particular to a production method of a hot-rolled wire rod with a diameter of 4.5 mm. Background technique [0002] Technological cost reduction is the goal that the company is constantly pursuing. At present, the small-sized wire rod used for drawing is basically Φ5.5mm. The production capacity of small-sized wire rods, while the Φ4.5mm hot-rolled wire rod for drawing is very scarce in the market. The production of Φ4.5mm hot-rolled wire rods for drawing can greatly reduce the drawing cost, and the company has considerable benefits at the same time. There are also certain social benefits. [0003] However, the smaller the size of the hot-rolled wire rod, the more difficult it is to produce. Under the premise of not introducing new production equipment, using the existing equipment of the enterprise, optimizing the pass design, developing Φ4.5mm hot-rolled wire rod, and realizi...

Claims

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Application Information

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IPC IPC(8): B21B1/18
CPCB21B1/18B21B2201/06B21B2261/08Y02P90/30
Inventor 李翔祯饶立华陈情华柳琴曾海霞
Owner JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
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