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Acid-pickling edge-shearing control method of non-oriented silicon steel

A control method and technology of silicic acid, applied in the direction of adaptive control, general control system, control/adjustment system, etc., can solve the problems of different ranges of edge trimming control, improve accuracy, improve shearing quality, and reduce tool breakage. rate drop effect

Active Publication Date: 2013-05-15
BAOSHAN IRON & STEEL CO LTD
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  • Summary
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AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned technical solution is aimed at the trimming control scheme of ultra-low carbon mild steel, and its scope is different from that of non-oriented silicon steel products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0015] Adopt the following steps to shear non-oriented silicon steel (each parameter, parameter coefficient and calculation results of this case embodiment 1-4 are shown in Table 1):

[0016] (1) The unit LEVEL2 process computer system receives the incoming material thickness X, product silicon content level Y, disc scissors blade diameter Z, and chipping shear lead rate Q sent by the LEVEL3 process computer system (the parameter values ​​in each embodiment are shown in the table 1);

[0017] (2) The LEVEL2 process computer system of the unit calculates the gap setting value H of the disc shears according to the following model according to the information received from the LEVEL3 process computer system 1 and overlap setting value H 2 :

[0018] h 1 = α 1 X+β 1 Y+γ 1 Z+δ 1 Q,

[0019] h 2 = α 2 X+β 2 Y+γ 2 Z+δ 2 Q;

[0020] where α 1 =0.0713~0.0846,β 1 =0.017~0.021, γ 1 =0.00029~0.00036, δ 1 =0.09~0.13, α 2 =-0.00118~-0.00139, β 2 =0.136~0.171, γ 2 =0.000...

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Abstract

The invention discloses an acid-pickling edge-shearing control method of non-oriented silicon steel. The controlling method includes that a gap set value and an overlap quantity set value of a circle shear are calculated according to a supplied material thickness, a product silicon content level, a circle shear blade diameter and a scrap shear guiding rate. Then, the circle shear shears the non-oriented silicon steel according to the gap set value and the overlap quantity set value. The acid-pickling edge-shearing controlling method of the non-oriented silicon steel obviously improves the precision of shearing parameter setting and improves shearing quality of the non-oriented silicon steels. Therefore, occurrence rates of belt-breaking and blade-fracturing are reduced.

Description

technical field [0001] The invention relates to a strip steel shearing method, in particular to a non-oriented silicon steel shearing method. Background technique [0002] In recent years, with the rapid development of the household appliance industry and the motor industry, the demand for electrical steel products is also increasing. Due to its high magnetic induction and low iron loss, cold-rolled non-oriented silicon steel products are becoming more and more popular in the market. At present, they have replaced hot-rolled silicon steel sheets as the main raw material for the motor industry. Non-oriented silicon steel products, especially medium and high-grade non-oriented silicon steel products with a silicon content of 1.0%-3.5%, are prone to poor shearing during the edge trimming process of hot-rolled sheets due to their extremely brittle material properties. Phenomenon. Poor edge shearing can easily cause strip breakage accidents during the rolling process of the col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
Inventor 曾建峰宋俊金国顾华中章培莉
Owner BAOSHAN IRON & STEEL CO LTD
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