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A production process for rolling 82b wire rod without holes in a high-speed wire rod mill

A high-speed wire rod and production process technology, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve the problems of steel stripping, low processing cost, and reduced production accident rate, so as to reduce order weight and processing cost. The effect of low, production accident rate reduction

Active Publication Date: 2017-07-18
西安盛日机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems in the prior art, the present invention proposes a method that does not require special equipment, has low processing cost, is easy to realize industrial production, solves the problem of steel material falling off the square in the non-porous rolling production process, and greatly reduces the production accident rate. , the product quality can be improved, and the production process of the high-speed wire rod mill without groove rolling 82B wire rod has obvious economic benefits

Method used

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  • A production process for rolling 82b wire rod without holes in a high-speed wire rod mill
  • A production process for rolling 82b wire rod without holes in a high-speed wire rod mill

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0046] The production process of the high-speed wire rod mill without groove rolling 82B wire rod includes the following steps:

[0047] 1) Heating: using a walking heating furnace to heat a steel billet with a cross-sectional size of 150mm×150mm to 980°C;

[0048] 2) No-hole rolling in the rough rolling unit: adopt flat roll rolling to carry out 6-pass rolling to the steel slab heated in step 1) to obtain a 60mm×60mm square steel. The exits are equipped with guides to guide the billet to enter and exit the rolling mill smoothly in the required direction and state. During the rolling process, the elongation coefficients of each pass are controlled as follows: the first pass is 1.304, the second pass is 1.361, and the third pass is 1.361. 1.304 for the fourth pass, 1.363 for the fourth pass, 1.31 for the fifth pass, and 1.258 for the sixth pass; the spread coefficient is 0.25-0.65, and the running speed of the billet during the rolling process is 0.205-0.816m / s;

[0049] 3) In...

Embodiment 2

[0059] 1) Heating: using a walking heating furnace to heat a billet with a cross-sectional size of 150mm×150mm to 1040°C;

[0060] 2) No-hole rolling in the rough rolling unit: adopt flat roll rolling to carry out 6-pass rolling to the steel billet heated in step 1) to obtain a 64mm×64mm square steel, and the rolling process of each rolling mill The exits are equipped with guides to guide the billet to enter and exit the rolling mill smoothly in the required direction and state. During the rolling process, the elongation coefficients of each pass are controlled as follows: the first pass is 1.301, the second pass is 1.312, and the third pass is 1.312. 1.318 for the fourth pass, 1.359 for the fourth pass, 1.275 for the fifth pass, and 1.388 for the sixth pass; the spread coefficient is 0.153-0.330, and the running speed of the billet during the rolling process is 0.20-0.82m / s;

[0061] 3) Intermediate rolling group and pre-finishing rolling group: use flying shears to cut off t...

Embodiment 3

[0069] The production process of the high-speed wire rod mill without groove rolling 82B wire rod includes the following steps:

[0070] 1) Heating: use a walking heating furnace to heat a billet with a cross-sectional size of 150mm×150mm to 1060°C;

[0071] 2) No-hole rolling in the rough rolling unit: adopt flat roll rolling to carry out 6-pass rolling to the steel slab heated in step 1) to obtain a 68mm×68mm square steel, and the rolling process of each rolling mill The exits are equipped with guides to guide the billet to enter and exit the rolling mill smoothly in the required direction and state. During the rolling process, the elongation coefficients of each pass are controlled as follows: the first pass is 1.301, the second pass is 1.311, and the third pass is 1.311. 1.314 for the fourth pass, 1.312 for the fourth pass, 1.278 for the fifth pass, and 1.277 for the sixth pass; the spread coefficient is 0.10-0.30, and the running speed of the billet during the rolling pro...

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Abstract

The invention belongs to the technical field of rod wire deformation processes in metallurgical industry and particularly relates to a production process for grooveless rolling of an 82B wire rod by a high-speed wire mill. The production process aims that special equipment is not required, the processing cost is low, industrialized production is easy to realize, the steel off-square problem of a grooveless rolling production process is solved, the production accident rate is greatly reduced, the product quality is improved, and the economic benefit is increased. The production process adopts the technical scheme as follows: the production process comprises the following steps: (1) heating a 82B steel billet; (2) rolling by a grooveless flat-roll rough rolling unit, wherein in the rolling process, the extension coefficient of each pass is controlled from 1.20 to 1.45, the broadening coefficient ranges from 0.10 to 0.65, and the running speed of the steel billet ranges from 0.20 m / s to 1.04 m / s; (3) entering an intermediate rolling unit and a pre-finishing unit in sequence for rolling; (4) rolling by a finishing unit; (5) cooling by water and entering a wire-feeding machine to obtain the wire rod; (6) cooling by air, winding and transporting, and finally packaging and warehousing to obtain the finished high-speed 82B wire rod.

Description

technical field [0001] The invention belongs to the technical field of rod and wire deformation technology in the metallurgical industry, and in particular relates to a production technology for rolling 82B wire rod without holes in a high-speed wire rolling mill. Background technique [0002] The annual production of high-speed wire rod mills, and technical and economic indicators such as roll consumption, power consumption and operating rate are key factors to measure the production line, determine the situation of production costs, and predict the survival index of enterprises. At present, the domestic high-speed wire rod rolling mill adopts the pass rolling production process, which processes the grooves through the rolls, and uses the pass of the rolling mill to realize the deformation of the steel material to obtain the required size. This process has never been able to effectively reduce the consumption of rolls fundamentally. , power consumption and increase operatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/16B21B37/56B21B45/02
Inventor 王剑勇李志民左红霞
Owner 西安盛日机电科技有限公司
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