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Emulsified liquid total flow setting method during cold rolling of double-rack six-roller mill

A technology of six-high rolling mill and setting method, which is applied in the direction of contour control, etc., and can solve the problems that the rolling stability of the strip shape and surface quality cannot be guaranteed at the same time

Active Publication Date: 2015-01-21
上海宝钢钢材贸易有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for setting the total flow rate of the emulsion in the cold rolling of a double-stand six-roll mill, aiming at setting the total flow rate of the emulsion in the high-grade automobile plate rolling process of the previous double-stand six-roll mill. Tables and on-site experience are the main factors, and the shape, surface quality and rolling stability cannot be guaranteed at the same time

Method used

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  • Emulsified liquid total flow setting method during cold rolling of double-rack six-roller mill
  • Emulsified liquid total flow setting method during cold rolling of double-rack six-roller mill
  • Emulsified liquid total flow setting method during cold rolling of double-rack six-roller mill

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no. 1 example

[0069] figure 2 It is a general calculation block diagram of the method for setting the total flow rate of the emulsion in the cold rolling of high-grade automobile plates in a double-stand six-high rolling mill according to the present invention. Taking a certain double-stand 1420 rolling mill as an example, with the help of figure 2 to describe the rolling reduction setting process for high-grade automotive sheet of a specific specification.

[0070] First, in step 1, the main equipment parameters of the two-stand six-high rolling mill to be optimized are collected, mainly including the working roll diameter D of the 1# and 2# stands w1 =420mm, D w2 =400mm; 1# and 2# frame intermediate roller diameter D m1 =500mm, D m2 =500mm; 1# and 2# frame support roller diameter D b1 =1200mm, D b2 =1200mm; 1# and 2# frame work roll body length L w1 =1350mm, L w2 =1350mm; 1# and 2# middle roller body length L m1 =1510mm, L m2 =1510mm; the length L of the roller body of the 1# ...

no. 2 example

[0096] In order to further illustrate the implementation process of this patent, taking a certain double-stand 1550 rolling mill as an example, with the help of figure 2 to describe the rolling reduction setting process for high-grade automotive sheet of a specific specification.

[0097] First, in step 1, the main equipment parameters of the two-stand six-high rolling mill to be optimized are collected, mainly including the working roll diameter D of the 1# and 2# stands w1 =450mm, D w2 =430mm; 1# and 2# frame intermediate roller diameter D m1 =520mm, D m2 =520mm; 1# and 2# frame support roller diameter D b1 =1100mm, D b2 =1100mm; 1# and 2# frame work roll body length L w1 =1460mm, L w2 =1460mm; 1# and 2# middle roller body length L m1 =1620mm, L m2 =1620mm; the length L of the roller body of the 1# and 2# rack support rollers b1 =1460mm, L b2 =1460mm; the distance between 1# and 2# frame work roll bending cylinder l w1 =2600mm, l w2 =2600mm; distance between 1# ...

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Abstract

The invention discloses an emulsified liquid total flow setting method during cold rolling of a double-rack six-roller mill. On the basis of a large number of field tests and theoretical researches, giving consideration to equipment characteristics of the double-rack six-roller mill and process characteristics of high-stage automobile sheet rolling, an emulsified liquid total flow optimization setting technology suitable for the high-stage automobile sheet cold rolling process of the double-rack six-roller mill is provided on the basis that sheet shape, surface quality and rolling stability comprehensive control indicators are introduced; three functions of improving the sheet shape quality of finished strip steel to the maximum degree, reducing the occurrence probability of hot slip damage to improve the product surface quality and avoiding slip to the maximum degree so as to improve the rolling stability can be achieved through the technology.

Description

technical field [0001] The present invention relates to the production technology of high-grade automobile plate cold rolling, and more specifically, relates to a method for setting the total flow rate of emulsion in the cold rolling of a two-stand six-high rolling mill Background technique [0002] During the cold rolling process of high-grade automotive sheet in a two-stand six-high mill, the friction between the rolls and the strip increases the rolling pressure, aggravates the wear of the rolls, generates a lot of heat, and deteriorates the surface quality of the rolled product , so a certain amount of emulsion must be sprayed into the roll gap for cooling and lubrication, such as figure 1 shown. [0003] At the same time, during the spraying process of the emulsion, when the rolling process parameters such as the reduction rule and the tension system and the process lubrication parameters such as the quality, concentration, temperature, and distribution ratio of the em...

Claims

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Application Information

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IPC IPC(8): B21B37/32
CPCB21B37/32
Inventor 刘晶封焱钟辰朱明德
Owner 上海宝钢钢材贸易有限公司
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