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Rolling Force Presetting Method of Ultra Thin Plate Tempering Mill

A technology of temper rolling and rolling force, which is applied in the field of rolling force pre-setting of ultra-thin plate tempering machine, which can solve the problems of inaccuracy and achieve the effect of strong applicability and fast calculation speed

Inactive Publication Date: 2011-12-28
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that there is no applicable rolling force setting model for the ultra-thin plate tempering machine in the prior art, which leads to the inaccurate setting of the rolling force setting value in actual production, the purpose of the present invention is to provide an extremely Rolling force preset method of thin plate tempering machine, so that the set value of rolling force can be set accurately

Method used

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  • Rolling Force Presetting Method of Ultra Thin Plate Tempering Mill
  • Rolling Force Presetting Method of Ultra Thin Plate Tempering Mill
  • Rolling Force Presetting Method of Ultra Thin Plate Tempering Mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Now refer to figure 2 The flow chart of pre-setting the temper rolling pressure is shown, taking the softest steel DC06 as an example to illustrate the process and effect of pre-setting the temper rolling pressure.

[0072] First, 100 groups (N=100) of temper rolling process parameters and corresponding actual temper rolling pressures of DC06 strip were collected on site.

[0073] Then, determine the strip average compression deformation resistance correction coefficient k 1 Correction factor k for equivalent length of deformation zone in temper rolling 2 value. For DC06 strip steel, k 1 =3.55,k 2 =2.76.

[0074] Subsequently, the value of the coefficient of friction constant is determined. Here, μ=0.10 is taken.

[0075] Finally, according to the calculation formula (3), the calculated value of the temper rolling pressure is obtained. Comparing it with the actual value, the error between the two is less than 17%, which meets the requirements of engineering pra...

Embodiment 2

[0077] Taking the medium-strength steel BLCJD3 as an example, and combining with the method for presetting the temper rolling pressure introduced in the present invention, the realization process of the temper rolling pressure presetting will be further described.

[0078] First, 66 groups (N=66) of temper rolling process parameters and corresponding actual temper rolling pressures of BLCJD3 strip were collected on site.

[0079] Then, determine the strip average compression deformation resistance correction coefficient k 1 Correction factor k for equivalent length of deformation zone in temper rolling 2 value. For BLCJD3 strip steel, k 1 = 3.5,k 2 =4.73.

[0080] Subsequently, the value of the coefficient of friction constant is determined. Here, μ=0.10 is taken.

[0081] Finally, according to the calculation formula (3), the calculated value of the temper rolling pressure is obtained. Comparing it with the actual value, the error between the two is less than 12%, whic...

Embodiment 3

[0083] The following takes the high-strength steel B410LA as an example to illustrate the realization process of presetting the temper rolling pressure.

[0084] First, 50 groups (N=50) of temper rolling process parameters and corresponding actual temper rolling pressures of B410LA strip steel were collected on site.

[0085] Then, determine the strip average compression deformation resistance correction coefficient k 1 Correction factor k for equivalent length of deformation zone in temper rolling 2 value. For B410LA strip steel, k 1 = 1.6,k 2 =2.60.

[0086] Subsequently, the value of the coefficient of friction constant is determined. Here, μ=0.10 is taken.

[0087] Finally, according to the calculation formula (3), the calculated value of the temper rolling pressure is obtained. Comparing it with the actual value, the error between the two is less than 15%, which meets the requirements of engineering practice.

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Abstract

The invention discloses a rolling force presetting method of an ultra-thin plate tempering machine. The specific steps of the presetting method are: firstly, a calculation model of rolling force is established; Bring the collected data into the rolling force calculation model, and obtain the value of the correction coefficient according to the principle of the smallest mean square error; finally, substitute the correction coefficient value into the rolling force calculation model to obtain the rolling force determination calculation model. The rolling force presetting method of the present invention is aimed at the characteristics of temper rolling of ultra-thin strip steel, has fast calculation speed and strong applicability, and is especially suitable for presetting the rolling pressure of an ultra-thin plate temper mill.

Description

technical field [0001] The invention relates to a rolling pressure setting technology, and more particularly relates to a rolling force presetting method of an ultra-thin plate tempering machine. Background technique [0002] In the process of producing ultra-thin plates of 0.18mm to 0.4mm, most of the ultra-thin plate tempering machines do not have an applicable rolling force setting model. The setting value of rolling force is usually given manually in actual production. arbitrariness and impreciseness. However, in the Chinese patent application No. 200510029206.8, the patent application titled "Rolling Pressure Setting Method for Tempering Mill" reveals that the rolling pressure is mainly related to the elastic flattening deformation of the roll, the friction coefficient within the length of the deformation zone of the rolled piece, and the horizontal boundary. Stress is related. When calculating the friction force, the plastic deformation zone of the rolled piece is fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/58
Inventor 唐成龙顾廷权张宝平
Owner BAOSHAN IRON & STEEL CO LTD
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