Study on Polarization of the Cold-Rolled Steel Strip in the Process of Electrolytic Cleaning

Abstract

The electrochemical behaviors of the cold-rolled steel strip were investigated at the range of ordinary current density (10A/dm2-30A/dm2). The power consumption, which is caused by overpotential of the cold-rolled steel strip per unit area (PCOC), was used to evaluate the energy consumption which is caused by polarization effectively. The effects of electrolysis time, current density, temperature and the concentration of electrolyte on the PCOC were examined. The PCOC increased with time, but the growth rate of the PCOC decreased with time. After about 8 seconds, the increasing rate of the PCOC closed to zero. The value of the PCOC was in direct proportion to current density, and there was a significant increase when the current density is beyond 25A/dm2. Both raising temperature and increasing the concentration of electrolyte are effective ways of decreasing the PCOC.

Design and Debugging of PMSM Control Algorithm for Electric Drive Tracked Vehicle

“…In the traditional motor control algorithm design and development process, manual code line by line, are not only time-consuming, but difficult to debug and transplant, and if the hardware upgrade can bring a lot of tedious change work, which has a problem of long development cycle, poor operability and high cost [4]. Aiming at this problem, this paper puts forward the graphical programming methods based on code automatic generation from the standard library, according to mathematical algorithm simulation model, which forms a seamless connection between the code and model, and each module can test and verify by the online interaction, which helps the improvement of reliability, code specification and development efficiency.…”

Simulation on Current Efficiency of Electrolytic Cleaning for Cold Rolled Strip

“…Lots of studies have been done on the processing parameters, such as current density, electrolysis time, temperature and concentration of electrolyte and so on. At present, the parameters of processing are mainly chosen through experience, not only wasting the resources but also having a low efficiency [1][2][3][4][5][6] . In the process of electrolytic cleaning, the cold-rolled steel strip acts as electrode, experiencing cathodic and anodic cleaning respectively.…”