Method for calibrating roller diameter of guide roller related to leveler elongation rate
A calibration method and elongation technology, which are used in guiding/positioning/aligning devices, metal rolling, manufacturing tools, etc., can solve the problems of insufficient measurement accuracy, large investment, and troublesome on-site operation, and achieve elongation detection and accuracy. The display accuracy is improved, the economic benefits are obvious, and the effect of ensuring normal production
Inactive Publication Date: 2011-05-04
NINGBO BAOXIN STAINLESS STEEL
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Problems solved by technology
Disadvantages: large investment, cooling with cooling water, troublesome on-site operation, and easy to be disturbed by external conditions
Disadvantages: easily affected by many factors, the measurement accuracy is not high enough
[0018] In the production of thin materials such as SUS4300.3~0.5mm, multi-pass leveling is required, and the elongation rate of some passes is only 0.05~0.15%. The above problems cause the performance of SUS430 steel to often appear substandard, resulting in the need for repair and re-leveling , or reduced to defective products, greatly increasing production costs and seriously affecting the company's normal production and operation
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0027] In view of the above problems, the elongation calibration method was improved to improve the accuracy of measurement and display. The improvement is mainly divided into the following two parts, as follows:
[0028] Elongation calibration after roll change
[0029] In view of the previous calibration method with large accumulation error, roughness and low precision, it has been refined and improved. And after exploration, a new calibration method was invented, and the method and calculation process were introduced with a certain calibration. details as follows:
[0030] prerequisite
[0031] 1) The guide roller sends out 3600 pulses every time it rotates;
[0032] 2) Focusing on the entrance guide roller, after a certain period of time, that is, after the entrance guide roller pulse generator has accumulated 15,000 pulses, the syst...
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The invention relates to a method for calibrating the roller diameter of a guide roller related to a leveler elongation rate. The method comprises that: rolled and unannealed band steel is adopted to calibrate, transmission shafts of an inlet guide roller and an outlet guide roller are provided with a pulse coder respectively, and the guide rollers generate a plurality of pulses when rotating by one cycle every time. The method is characterized in that the inlet guide roller is taken as a main part, after pulse coder of the inlet guide roller accumulates to a preset pulse number for a period of time, the actual elongation rate and the displayed elongation rate values of a leveler system are acquired; the manual measured valves of the roller diameters of the inlet guide roller and the outlet guide roller are taken as standards, the unit perimeter of the outlet guide roller corresponding to each self pulse is acquired by the backward calculation by the actual elongation rate through a calculation formula of the elongation rate; and the roller diameter of the finished outlet guide roller is calculated and acquired by using the calculation formula of the elongation rate again under the condition that the elongation rate is zero. The method provides the foundation for improving the measuring precision and the displaying precision of the elongation rate of the leveler and has the advantages of simpleness and practicality.
Description
technical field [0001] The invention relates to a method for calibrating the roll diameter of a guide roller for the elongation rate of a tempering machine, which is used for trimming the elongation measurement number of the tempering machine, and improving the measurement and display accuracy. Background technique [0002] In order to meet the needs of users for deep processing, stainless steel generally needs to be leveled after annealing. Leveling is the last key production process of stainless steel cold rolling, and it plays a very important and unique role in ensuring the quality of finished products. The purpose and function of leveling mainly include the following aspects: [0003] 1) Through small deformation, adjust the hardness of strip steel, etc., to improve its mechanical properties; [0004] 2) Eliminate the yield platform of SUS430 steel to facilitate deep processing; [0005] 3) Improve the smoothness of the strip surface; [0006] 4) Improve the strip s...
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IPC IPC(8): B21B38/00B21B39/16
Inventor 杜海宪
Owner NINGBO BAOXIN STAINLESS STEEL