Calculation method for checking rolling force and energy of ordinary hot-rolled bars

A calculation method and rolling force technology, applied in metal rolling, metal rolling, manufacturing tools, etc., can solve the problem of narrow application range, complicated or simplified calculation process, and inability to effectively and conveniently check the rolling force capability. parameters, etc.

Active Publication Date: 2021-05-28
HUATIAN ENG & TECH CORP MCC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for ordinary hot-rolled bar production lines with multi-stand and multi-hole continuous rolling, the calculation process of pure theoretical formulas or empirical methods is too complicated or simplified, and the scope of application is very narrow, and the calculation results are often only under specific conditions. Reasonable, so it is impossible to uniformly check the rolling force parameters of each stand effectively and conveniently

Method used

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  • Calculation method for checking rolling force and energy of ordinary hot-rolled bars
  • Calculation method for checking rolling force and energy of ordinary hot-rolled bars
  • Calculation method for checking rolling force and energy of ordinary hot-rolled bars

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121]Taking the production of four-cut Φ10mm threaded steel bars in a bar factory as an example to calculate. The factory has a total of 18 rolling mills, equipped with motor power of 600, 600, 900, 900, 900, 900, 900, 900, 1050, 1050, 1050, 1050, 1500, 1500, 1500, 1500, 1500, 1500kW. The calculation process is shown in the following three tables, where the red numbers are known data.

[0122] From the results of rolling mill force calculation Table 3, it can be seen that the 18 rolling mills and motor power equipped in this factory can fully meet the production of four-segmented Φ10mm threaded steel bars.

[0123] Table 1 Basic parameter calculation table

[0124] Billet weight (kg): 2543 Specifications: Φ10mm×4 Final rolling speed (m / s): 14 Steel type: 20MnsiV

[0125]

[0126] Table 2 Calculation table of temperature of rolled piece in each pass

[0127]

[0128] Table 3 Calculation table of rolling force and energy for each pass

[0129]

Embodiment 2

[0131] Further, the single-line rolling production of Φ25mm rebar in this bar factory is taken as an example for calculation. Similarly, the calculation process is shown in the following three tables, where the red numbers are known data. From the results of rolling mill force calculation Table 3, it can be seen that the 18 rolling mills and motor power equipped in this factory fully meet the single-line rolling production of Φ25mm threaded steel bars.

[0132] Table 1 Basic parameter calculation table

[0133] Billet weight (kg): 2543 Specifications: Φ25mm Final rolling speed (m / s): 14 Steel type: 20MnSiV

[0134]

[0135] Table 2 Calculation table of temperature of rolled piece in each pass

[0136]

[0137] Table 3 Calculation table of rolling force and energy for each pass

[0138]

Embodiment 3

[0140] Further, the single-line rolling production of Φ25mm rebar in another bar factory is taken as an example for calculation. The plant has a total of 18 rolling mills, equipped with motor power of 650, 650, 850, 850, 850, 850, 850, 850, 850, 850, 850, 850, 1400, 1400, 1400, 1600, 1600, 1600kW. Similarly, the calculation process is shown in the following three tables, where the red numbers are known data.

[0141] From the results of rolling mill force calculation Table 3, it can be seen that the 18 rolling mills and motor power equipped in this factory fully meet the single-line rolling production of Φ25mm threaded steel bars.

[0142] Table 1 Basic parameter calculation table

[0143] Billet weight (kg): 2516 Specifications: Φ25mm Final rolling speed (m / s): 13.5 Steel type: 20MnSiV

[0144]

[0145] Table 2 Calculation table of temperature of rolled piece in each pass

[0146]

[0147] Table 3 Calculation table of rolling force and energy for each pass

[0148] ...

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Abstract

The invention discloses a calculation method for checking and calculating the rolling force and energy of common hot-rolled bars: the method includes: 1) calculating basic parameters; 2) calculating the temperature of a rolled piece; 3) calculating rolling force and energy parameters; Combining the existing theoretical calculation formulas and empirical formulas, a set of simple and effective rolling force energy calculation methods are proposed through parameter correction. The calculation results fully meet the needs of ordinary hot-rolled bar production line rolling force parameter calibration. Can provide reference for design planning.

Description

technical field [0001] The invention relates to the field of ordinary hot-rolled bar production, in particular to a calculation method for checking and calculating the rolling force of hot-rolled threaded steel bars and ordinary round bars. [0002] technical background [0003] Ordinary hot-rolled bars, especially hot-rolled rebar and round bars, are the most widely used and most demanded construction steel products. At present, there are hundreds of ordinary bar factories in China producing and supplying ordinary hot-rolled bars. With strong market demand and continuous improvement of product quality requirements, iron and steel enterprises often have engineering projects for capacity upgrading and transformation, and even new production lines. In the early stage of project design and planning, it is necessary to check and calculate the rolling capacity of the rolling mill of the production line to check whether the rolling mill motor meets the requirements of rolling capa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B38/08
CPCB21B38/08B21B2201/06B21B2265/12
Inventor 张向军张焰蒲春雷徐峰舒乐意卢勇方实年
Owner HUATIAN ENG & TECH CORP MCC
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