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Curve transition method of variable thickness strip transition area

A transition curve and transition zone technology, applied in the field of variable thickness strip rolling, can solve problems such as the inability to meet the adjustability requirements, and achieve the effect of reducing the maximum rolling force and eliminating the sudden change of rolling force.

Active Publication Date: 2014-07-16
QINHUANGDAO CHANLINE PHOTOVOLTAIC ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the thickness of the thick zone, the thickness of the thin zone and the length of the transition zone are known, the curve equation is fixed and cannot meet the adjustability requirements

Method used

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  • Curve transition method of variable thickness strip transition area
  • Curve transition method of variable thickness strip transition area
  • Curve transition method of variable thickness strip transition area

Examples

Experimental program
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Embodiment

[0037] It is known that the rolling material is AISI-1045, the length of the transition zone is l=60mm, the thickness of the incoming material is 3.0mm, and the thickness of the thick zone is h b =2.7mm, the thickness of the thin area is h a = 2.1 mm. If the double power function curve with the same power index in the first half and the second half is adopted, the curve equation is:

[0038] y = 0.15 30 n x n 0 ≤ x ≤ 30 , n > 1 y = 0.3 - 0.15 ...

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Abstract

The invention discloses a curve transition method of a variable thickness strip transition area, and relates to a variable thickness strip rolling technology. According to the method, the curve transition of the transition area is conducted through a double power function curve with the same front half power exponent and the rear half power exponent and a double power function curve with different front half power exponent and the rear half power exponent. The curve of the transition area has the advantages of being continuous and smooth, adjustable in shape, and capable of eliminating rolling force mutation in transition area rolling and reducing the maximum rolling force. The curve transition method of the variable thickness strip transition area is significant for rolling production of the variable thickness strip and rolling machine maintenance.

Description

technical field [0001] The invention relates to a variable-thickness strip rolling technology, in particular to a curve transition method for a variable-thickness strip transition zone. Background technique [0002] With the continuous emergence of environmental pollution and global energy shortage, reducing the weight of vehicles has become an important means to achieve energy and environmental protection. Variable thickness strip is a new type of material for the production of lightweight automotive parts. The variable-thickness strip produced by the rolling process has a continuously changing transition zone and good surface quality, and is a main process for variable-thickness strip production. [0003] The basic function of the transition zone curve is to realize the continuous change of the variable thickness strip from the thick zone to the thin zone, so it must be a continuous function; on the premise of realizing continuous transition, it is also hoped that the tra...

Claims

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Application Information

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IPC IPC(8): G05B13/02
Inventor 王东城董连超刘宏民王春芳
Owner QINHUANGDAO CHANLINE PHOTOVOLTAIC ELECTRONICS
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