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Ultra-thin strip steel finishing unit operation parameter design method

A technology for finishing units and operating parameters, which is applied in the design field of operating parameters of ultra-thin strip steel finishing units, and can solve the problems of lack of theoretical and data support for the rational judgment of selected parameters.

Active Publication Date: 2014-11-19
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Domestic research and development and design personnel of finishing units mostly rely on technical experience to select the operating parameters of various links involved in the finishing unit, and lack theoretical and data support for the rational judgment of the selected parameters, while foreign high-level design The company also implements technical secrecy and blockade against China, which requires domestic R&D and design personnel of finishing units to provide a method that helps to judge whether the selected operating parameters are reasonable

Method used

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  • Ultra-thin strip steel finishing unit operation parameter design method
  • Ultra-thin strip steel finishing unit operation parameter design method
  • Ultra-thin strip steel finishing unit operation parameter design method

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Embodiment 1

[0137] When developing and designing a finishing unit, it is necessary to theoretically analyze the rationality of the selected operating parameters. This embodiment further describes in detail the operation parameter design method for the ultra-thin strip steel finishing unit provided by the present invention.

[0138] The flow chart of the operation parameter design method of the ultra-thin strip steel finishing unit according to the present invention is as follows: image 3 shown, including multiple models. Before establishing each model, it is necessary to set the operating parameters of the unit, such as strip width B, strip thickness h, strip yield strength σ s , the maximum operating speed of the unit v max , the unit threading speed v 穿带 , normal acceleration and deceleration time t 加减速 , the quick stop deceleration time t 快停 , emergency stop deceleration time t 急停 , the minimum coiling tension T min , the maximum winding tension T max . In addition, the roll n...

Embodiment 2

[0256] The design parameters of a tin-plating preparation unit are calculated and analyzed by adopting the calculation method of the design parameters of the ultra-thin strip steel high-speed finishing unit proposed by the present invention. The strip specifications of this unit are: width B=700~1300mm, thickness h=0.15~0.55mm, yield strength σ s =275~435MPa, the maximum operating speed of the unit is v max = 1000m / min, belt threading speed v 穿带 =30m / min, normal acceleration and deceleration time t 加减速 =23s, quick stop deceleration time t 快停 =17s, emergency stop deceleration time t 急停 =9s, minimum winding tension T min =6000N, the maximum winding tension T max =18000N. The calculation results are shown in Table 1.

[0257] Table 1 Calculation results of design parameters of a tin-plating preparation unit

[0258]

[0259]

[0260] Referring to the calculation results in Table 1, and considering the actual situation of the unit equipment, basic space, maintenance ...

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Abstract

The invention discloses an ultra-thin strip steel finishing unit operation parameter design method. The ultra-thin strip steel finishing unit operation parameter design method comprises the steps that strip steel and finishing unit parameters, roller numbers and strip steel tension are set; a roller diameter initial value is set according to a roller diameter calculation model; strip steel centrifugal force is calculated according to a strip steel centrifugal force model; tension loss, caused by elastic plastic bending, of strip steel is calculated according to a strip steel elastic plastic bending model; the distance between a number i roller and an adjacent number (i+1) roller is set firstly; the height difference between the number i roller and the adjacent number (i+1) roller is calculated according to a strip steel critical plastic bending model; a roller slipping model is built; the minimum roller diameter of the number i roller is calculated according to a roller mechanical strength model; whether roller slipping conditions are met is judged; whether the number i roller needs a clamping roller is judged; the roller number i and the roller number n in the finishing unit are compared. The ultra-thin strip steel finishing unit operation parameter design method is perfect, and provides theoretical support and data support for judgment of reasonability of selected parameters.

Description

technical field [0001] The invention belongs to the technical field of strip steel finishing equipment, and relates to a design method for the operation parameters of an ultra-thin strip steel finishing unit. Background technique [0002] The strip rolled by the cold rolling mill must be finished and processed in order to obtain high-quality qualified products. Finishing treatment is the last process of the finished strip steel. The finishing treatment process mainly includes recoiling, trimming, etc. The equipment used in the finishing treatment process is the finishing unit. In order to obtain high-quality strip products, it is required that the finishing unit shall not produce new defects when processing the strip, and the surface of the strip shall not be scratched and deformed. [0003] Modern tandem cold rolling mills are constantly developing towards high speed and automation, and the running speed is getting higher and higher. In order to match the output of the ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D1/02
Inventor 张康武李剑任玉成孙亚波刘渭苗
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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