Emulsified liquid concentration optimization setting method during automotive sheet cold rolling of double-rack four-roller mill

A technology for optimizing settings and automotive plates, applied in the direction of roll speed control, metal rolling, contour control, etc., can solve problems such as friction, high rolling heat, vibration, etc.

Active Publication Date: 2015-01-21
上海宝钢钢材贸易有限公司
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Problems solved by technology

[0009] The purpose of the present invention is to provide a method for optimizing the concentration of emulsion in the cold rolling of a double four-roll unit for automobile plates, so as to solve the frictional conditions in the deformation zone of strip rolling in the prior art, the high rolling heating conditions, and Problems with a high incidence of defects such as slipping, thermal skids, and vibrations

Method used

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  • Emulsified liquid concentration optimization setting method during automotive sheet cold rolling of double-rack four-roller mill
  • Emulsified liquid concentration optimization setting method during automotive sheet cold rolling of double-rack four-roller mill
  • Emulsified liquid concentration optimization setting method during automotive sheet cold rolling of double-rack four-roller mill

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no. 1 example

[0051] figure 2 It is a general calculation block diagram for optimal setting of emulsion concentration in the cold rolling process of a high-grade automobile plate in a double-stand four-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 optimization setting process of high-grade automotive sheet emulsion concentration with specific specifications.

[0052] First, in step 1, the main equipment parameters of the two-stand four-high rolling mill to be optimized are collected, mainly including the working roll diameters of 1# and 2# stands Maximum rolling pressure P of 1# and 2# rack mills 1max =1800t,P 2max =1800t, 1# and 2# stand rolling mill maximum rolling power F 1max =4000Kw, F 2max =4000Kw;

[0053] Subsequently, in step 2, the characteristic parameters of the strip to be rolled are collected, mainly including: the width B=1200mm of the strip; the thickne...

no. 2 example

[0077] 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 optimization setting process of high-grade automotive sheet emulsion concentration with specific specifications.

[0078] First, in step 1, the main equipment parameters of the two-stand four-high rolling mill to be optimized are collected, mainly including the working roll diameters of 1# and 2# stands Maximum rolling pressure P of 1# and 2# rack mills 1max =2000t,P 2max =2000t, 1# and 2# stand rolling mill maximum rolling power F 1max =4500Kw, F 2max =4500Kw;

[0079] Subsequently, in step 2, the characteristic parameters of the strip to be rolled are collected, mainly including: the width B=1320mm of the strip; the thickness h of the incoming strip 0 =1.2mm; strip exit thickness h 2 =0.65mm; the modulus of elasticity of the strip E=2.1×10 5 MPa; Poisson's ratio v=0.3 of the strip;...

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Abstract

The invention discloses an emulsified liquid concentration optimization setting method in the high-stage automotive sheet cold rolling process of a double-rack four-roller mill. On the basis of a large amount of field test tracking and theoretical researching, in cooperation with equipment characteristics of the double-rack four-roller mill and process characteristics of high-stage automobile sheet rolling, on the premise that it is guaranteed that defects such as slippage, hot slip damage and vibration are avoided, an emulsified liquid concentration optimization setting technology suitable for the high-stage automobile sheet cold rolling process of the double-rack four-roller mill is provided with the highest rolling speed which can be reached as a target; two functions of improving the rolling speed to the maximum degree to guarantee the rolling efficiency and avoiding the defects such as the slippage, the hot slip damage and the vibration to the maximum degree can be achieved through the technology.

Description

technical field [0001] The invention relates to a high-grade automobile plate cold-rolling production process technology, in particular to an emulsion concentration optimization setting technology suitable for the high-grade automobile plate cold-rolling process of a two-stand four-roll mill. Background technique [0002] In the cold rolling process of high-grade automobile sheet in a two-stand four-high mill, the emulsion takes into account two functions. On the one hand, the moisture contained in the emulsion takes away the heat of deformation and friction in the rolling area, reducing the rolling On the other hand, the base oil contained in the emulsion can act as a lubricant, reduce the friction coefficient of the deformation zone, and improve the rolling state. The so-called emulsion concentration refers to the relative content of oil and water in the emulsion. [0003] Experiments have shown that when the concentration of the emulsion is relatively low, the heat trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/46
CPCB21B1/28B21B37/44B21B2263/04
Inventor 张焰肖成祥杨柳青林侃封焱
Owner 上海宝钢钢材贸易有限公司
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