Description method and characteristic regulation of electronic temperature control roll profile
Starting from the technical principle of roll profile electronic temperature control and the roll profile constitutional characteris-tics of electronic temperature control roll,three typical polynomial fitting models were selected to fit and analyze the local roll profile,and the basic model of roll profile description was established.Two methods of roller profile effective influence zone boundary evaluation were proposed,and the adaptability of roll profile description method with different current parameters and thermoelectric cooler(TEC)length parameters was analyzed.Aiming at the improvement of the preset efficiency,using Chebyshev polynomial to divide the roll curve,and taking the characteristic component as the preset roll profile regulation quantity in the application of technology,the influence of the regu-lation parameters on the parameterization of roll curve was explored.The results show that the higher the order of fitting model,the better the fitting effect,but the improvement effect decreases with the increase of order.Under different evaluation criteria of effective roll profile area,the proportional boundary shows more stable evaluation performance than the fixed value boundary and is more suitable for electronic temperature control technology.Local roll profile can be expressed efficiently by preset regulation quantities of secondary convexity and fourth convexity of roll profile.The current parameter has more adjusting force for secondary convexity.Secondary convexity and fourth convexity of TEC length have similar adjusting forces.The research provides a preset parameter evaluation standard for roll profile of elec-tronic temperature control roll.
roll profile curveroll profile electronic temperature control technologyTECconvexity
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