Before connecting, clean the thread of graphite electrode first and screw the joint to the end of the electrode, and hoist joint to the other end. Do NOT touch the tread, and don’t put the joint directly into the working electrode or furnaces.
Steel-wire ball, metallic brush or emery cloth is not allowed for cleaning electrode thread, but compressed air free of oil and water is available.
Use revolved hanger and put soft truss pad under the electrode joint to avoid breakage of thread.
Before connecting, clean the screw thread of electrode with compressed air free of oil and water.
Lift the electrode to furnace by using hoister with resilient hanger, and find out the center and move slowly downwards, screw and tight with hoop. .
Use special caliper to tight electrode according to rated torque by mechanical way, hydraulic pressure or wind pressure equipments should also be available. .
If the two poles of electrode are untouched or touched in overpressure, this may cause bad effect. Please refer to the rated torque in the following form. .
[table id=22 /]
Electrode clamp holder must be placed between the two guard lines. Clamp holder and interfaces of the electrode mud be cleaned regularly to keep good touch with electrode. Cooling water jacket of the clamp holder should be tight to prevent water leakage.
To avoid the electrode breakage, insulating materials should not be put into the furnace. The working current of electrode must be conformity with the allowable current of electrode in the instructions. .
In order to avoid electrode breakage, put the large materials in lower part and small materials in the upper part. .