Causes and preventive treatment of electrode hard breakage (III)

Electrode hard break refers to the sintered electrode in the conductive clip below the part of the fracture:

Process operation reasons: ① not according to the process requirements of control, pressure release electrode so that the electrode is too long, and not on time pressure release electrode, so that the electrode for a long time overcooking, strength is poor, self-significantly pull off the electrode.

② do not press and release the electrode according to process requirements on time, the operating current (secondary electrode current) is high, the operating voltage (secondary electrode voltage) is low, the power factor is low, the active power is poor, the electrode sintering is greater than the consumption of electrodes, so that the electrode for a long time in the state of overcooking, strength is poor, the occurrence of hard breaks; a long time after stopping the furnace does not send electricity according to the requirements of the process procedures, the current sent to the current, the load rises too quickly, so that the electrode surface and the heart of the temperature gradient Large, thermal stress generated by the micro-cracks through the electrode hard break.

③ After a long period of furnace shutdown, the electrode is not protected according to the process requirements, active electrode, resulting in electrode pulverization, oxidation is serious, the cross-section becomes small, or the electrode sticking to the electrode, power delivery, pull off the electrode, or the power delivery load, current is too fast, the thermal stress is large, the current exceeds the cross-section to withstand the current density, breaking the electrode.

④ frequent thermal shutdowns, long time, furnace conditions are not normal, caused by the electrode hard break accident; the first leakage of paste, pumping center or soft break, and then hard break due to insufficient bonding strength.

Equipment reasons:

② motor Jane production is not qualified, docking accuracy does not meet the process requirements, resulting in the motor Jane up and down is not concentric, vertical, pressure to put the electrode broken electrode; contact elements of the clamping force is not adjusted according to the design requirements or a long period of time, loss, strain serious, resulting in the electrode shell rib fins and conductive elements of the contact area is too small, resulting in the motor Jane rib plate contact is not good heat, resulting in the electrode in advance of overcooking to the conductive clamping below the hard break; ③ the holding system equipment is not insulated.

③ holding system equipment is not insulated, electrically heated to electrode overheating, from the conductive clip down to the hard break.

China Tanlin electrode paste www.tanlincarbon.com. Summarize the various types of electrodes in the use of electrode paste process may appear a variety of problems, only to provide customers with the best quality service. The company is equipped with the most excellent technical team, the most advanced equipment, by first communicating the customer’s technical parameters and then formulate a reasonable technical formula, to produce the most suitable for the customer’s electrode paste products so as to win the market.