Papers by Keyword: Mold Oscillation

Abstract: Based on an superposition principle, a new type of mechanically driven non-sinusoidal oscillation device has been designed. It has been proved by production practice that the device has much more advantages of investment, operation, maintenance and reliability than hydraulic-servo driven system. Now the oscillation device has been used at CC slab caster at No.1 Steel-making Plant of Shougang Corp. and obvious effect has been obtained.

Abstract: The paper describes the composition and working principle of the mold oscillation control system. The mathematical model of hydraulic servo control system is established. The total system transfer function is established by MATLAB program. By using the SIMULINK module, we determined various components’ parameter values. We got different simulation curves and Bode plots by inputting non- sinusoidal function and carrying out the dynamic simulation to the mold oscillation mathematical model, we also analyzed stability of the whole system to verify the accuracy of system design.

Abstract: In this paper, billet caster mold oscillation have been found that the mold have sinked and swing have became deformed in the operated process, in order to solve the problem, firstly,the billet caster mold oscillation is simulated on dynamics by using Adams; the force of every joining on swinging arm is obtained. Then, the finite element analysis is worked on swinging arm by using Solid Works COSMOS Works; the stress on everywhere is obtained. The place of maximum stress value is found, then reconstruct swinging arm, at last, the maximum stress value of swinging arm is declined and the factor of safety of swinging arm is increased. So the problem of mold sunk is solved.

Abstract: The heat transfer in steel continuous casting process under mold oscillation was calculated, and temperature fluctuation phenomena was found in the initial solidification area, the maximum value was approximate 16 °C. The effect of different continuous casting parameters on temperature fluctuation were analyzed, and the temperature fluctuation was considered to be a key factor to the formation of oscillation marks. The Index of Temperature Fluctuation(ITF) was proposed to predict the effect of temperature fluctuation on the formation of billet surface defects.