Offline :: Sex N/A
wowhonsul
New Member
pm
Posts: 10
Joined:
| HP Graphite Electrode manufacturers (18th Jan 23 at 1:32am UTC)
HP Graphite Electrode manufacturers | | HP Graphite Electrode manufacturers Product Description
HP graphite electrode is the conducting element for electric arc furnaces steelmaking. It is made of petroleum coke, needle coke, coal pitch and produced by a series of strict production processes. High-current lines insert through the graphite electrode port inside the furnace body. This will releases electric energy in the arc furnace to heat the furnace.
Product Specification
Applicable Nipple information
Package
Plywood packing, seaworthy packing聽
Transport & Export
Service
Direct loss caused by broken graphite electrode in smelting
Fracture of graphite electrode is a common phenomenon in all electric furnace smelting, and is also the main factor affecting consumption. Occasional breaks are normal in a complex environment, but continuous breaks are not. The reason is related to many factors. Overall, it can be divided into: artificial and mechanical fracture. Artificial fracture mainly includes: bump, scratch in lifting, connection is not in place or improper method, improper sliding in the flat holder, hard collision or poor transmission control sensitivity. In addition to mechanical faults, electrode quality problems and operation problems often exist simultaneously and are difficult to distinguish. The main phenomena are as follows:
(I) My electrode body is broken.
First, the electrode may have structural defects and the strength is low. The second is the lateral impact force of large collapse due to short arc operation after penetration in smelting; third, the three-phase electrode on the furnace is seriously not vertical and there is hanging furnace slag or scraping furnace cover phenomenon. When it broke, it was very crisp and loud.
(ii) the hole bottom of the electrode body is broken.
First, the structure of the electric extreme is loose or has dark lines, the joint and the hole are not properly matched or the material difference linear expansion coefficient does not match; second, the phase electrode is different center, electrode travel is too long or not sensitive; the third is the unreasonable fabric in the furnace, and there are non-conductive materials under the electrode. The break is not loud, but the tilt is heavy.
(3) The joint is broken irregularly.
The first is that the taper of the joint processing is different or the ellipse of the joint hole is too large; second, the dust in the hole during the connection causes the contact resistance to be too large, which causes the local oxidation of the joint wire buckle to be too fast; third, the electrode contact is not in place and does not meet the torque requirements, resulting in loosening; four is the controller tilt, electrode and furnace cover hole different center. The sound of breaking is brittle and small.
(4) Joint fracture showed regular phenomena.
First, the quality of the joint itself is different, the joint strength can not meet the needs of smelting furnace condition; second, the electrode hole and joint tolerance is not fit properly or the connection torque is not up to the requirements, resulting in buckle back; third, the secondary current fluctuation range in the power supply is too large or there is a sudden increase in the phenomenon, the maximum instantaneous current is far more than 1.2 times the rated value; fourth, when the input power is too large, the thermal vibration is too large, and the electrode connection is prone to red and the display resistance is too large. The sound is muffled when it breaks.HP Graphite Electrode manufacturers
website:http://www.hncalgon.com/hp-graphite-electrode/ | |
|
