A hexagonal support roll profile curve

Abstract

The invention relates to a hexagonal support roll profile curve, which belongs to the technical field of strip steel production equipment in the metallurgical industry. The technical solution is: the equation of the roll profile curve of the backup roll is: f(x)=p 1 *x^6+p 2 *x^5+p 3 *x^4+p 4 *x^3+p 5 *x^2+p 6 *x+p 7 ; Among them: x is the length coordinate of the back-up roll body, p 1 ,p 2 ,p 3 ,p 4 ,p 5 ,p 6 They are the coefficients of the sixth power, fifth power, fourth power, third power, second power, and first power of the equation, p 7 is the constant term of the equation, and E is the scientific notation method; the roll shape curve of the backup roll is ground by a CNC grinding machine. The beneficial effect of the invention is that the profile of the finished strip can be improved, and the reduction rate of the plate profile is reduced from 4.63% to 0.06%. The roll shape curve of the hexagonal backup roll is a curve formed by one grinding, and it is not necessary to grind the chamfers on both sides of the backup roll separately, which improves the grinding efficiency of the backup roll.

Description

technical field [0001] The invention relates to a hexagonal support roll profile curve, which belongs to the technical field of strip steel production equipment in the metallurgical industry. Background technique [0002] Products with good shape and quality are used in the manufacture of automobiles and home appliances, and the market demand is large. At present, hot rolling technology at home and abroad is developing towards shape, thickness accuracy, precise control of temperature and performance, and surface quality control. The shape control of strip products has always been the main problem that manufacturers at home and abroad are trying to solve. Poor shape has a great impact on production stability, cost, operating rate and product quality. Improving the shape quality of thin gauge and variety steel has significant economic benefits for stable production, improving operating rate, reducing abnormal consumption of rolls, and improving product quality. It can also pro...

AI Technical Summary

Problems solved by technology

[0003] The 1700 production line is a common production line for strip steel production in the metallurgical industry at present, including the rolling process and the skin-passing process. Due to the poor roll shape of the 1700 finishing mill and the support roll of the skin-pass mill, the finished strip generally has double-sided wave defects. The thinner the thickness, The higher the strength, the more serious the double-sided wave defect will be, which will have a greater impact on the subsequent production process and equipment, and some products will eventually be reduced or quality objection due to poor board shape.

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