UHP450 Graphite Electrode with Nipple UHP Graphite Electrode for Eaf Arc Furnace

Model NO.
UHP450MM
Transport Package
Wooden Pallet
Specification
UHP450MMX1600MM/2000MM/2200MM
Trademark
KFCC CARBON/JLCC CARBON/CALGON CARBON
Origin
China
HS Code
8545110000
Production Capacity
100000 Tons Per Year
Reference Price
$ 1,800.00 - 2,700.00
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Product Description

Description
Product Description
Graphite electrode is a major conduction material used in the electric smelting industry, which has the properties of superior electric conductivity ,  thermal conductivity, high mechanical strength, oxidation, and corrosion resistance in high temperatures. Graphite electrode is widely used in EAF (for smelting steel), submerged-arc furnace (for producing Ferro alloy, pure silicon, phosphor, matte, calcium carbide, etc.), and electric resistance furnace,   (such as graphitization furnace producing graphite electrodes, glass--melting furnace ,  electric furnaces producing carborundum, etc.)
Roasting stage
The thermal stability, mechanical strength and electrical conductivity of the material can be greatly improved by roasting process. In the process of roasting, the coal bitumen in the raw billet is coking, and about 10% of the volatile components are discharged. At the same time, the volume shrinks by 2-3% and the mass loss is 8-10%. The physical and chemical properties of the electrode are also improved, the volume density is decreased from 1.70g/cm3 to 1.60g/cm3, the resistivity is decreased from 10000 μω.m to 40-50 μω.m, and the mechanical strength of the electrode is also improved.
Secondary roasting is roasting again after impregnation to carbonize the bitumen immersed in the pores of the roasted product. Electrodes with higher volume density requirements (except ordinary power graphite electrode RP) and joints need to be double baked, and the joint blank also needs to be triple dipped and four baked or double dipped and three baked.
Main types of baking furnace:
Continuous operation ---- ring furnace (with cover, without cover), tunnel kiln
Intermittent operation ---- inverted flame kiln, bottom roaster, box roaster
Roasting curve and maximum temperature:
One time roasting ----320, 360, 422, 480 hours, 1250 ºC
Second roasting ----125, 240, 280 hours, 700-800 ºC
Inspection of roasted products: appearance knock, resistivity, volume density, compressive strength, internal structure analysis
Dipping stage
The calcined product is put into the pressure vessel, and the liquid impregnating agent asphalt is immersed into the pore of the electrode under certain pressure and temperature conditions. The purpose of impregnation is to reduce the porosity of the product, increase the volume density and mechanical strength of the electrode, and improve the electrical and thermal conductivity of the electrode.
The process flow and related technical parameters of impregnation are:
Roasting billet -- surface cleaning -- preheating (260-380 ºC, 6-10 hours) -- loading impregnating tank -- vacuuming (8-9kpa, 40-50min) -- asphalt injection (180-200 ºC) -- pressurizing (1.2-1.5mpa,3-4 hours) -- asphalt return -- cooling (inside or outside the tank)
Inspection after impregnation:
Impregnation weight gain rate G=(W2-W1)/W1×100%
One impregnation weight gain rate ≥14%
The weight gain rate of the second impregnated product is ≥9%
Weight gain rate of three impregnated products ≥5%
Product Specification

UHP450 Graphite Electrode with Nipple UHP Graphite Electrode for Eaf Arc Furnace Applicable Nipple information

UHP450 Graphite Electrode with Nipple UHP Graphite Electrode for Eaf Arc Furnace

Package
1.Divided packing
The electrodes and nipples are packaged separately and shipped
2.Pre-connected packing
The nipples have been pre- instalied with electrode one end,and packaged shipment.
The main purpose of packing:To protect the electrode from damaging during the storage and transportation, especially of the screw parts.
Note: We can provide packaging according to the requirements of users.

UHP450 Graphite Electrode with Nipple UHP Graphite Electrode for Eaf Arc Furnace
Transport & Export

UHP450 Graphite Electrode with Nipple UHP Graphite Electrode for Eaf Arc Furnace



Service concept

Calgon Carbon has an experienced and highly skilled service team who always insists on the service concept of "honest service and perfection", continuously deepening marketing services, extending service contents for the whole process ofpre-sales, in-sales, and after-sales throughout the entire marketing process, which provides the customer with technical positioning, guidance, and full tracking service of steel making testing. Calgon Carbon promises to reach the worksite within 72 hours to analyze and solve the problem with the user for the anomalies and problems of electrodes using.


Company Info

Henan Calgon Carbon Co., LTD     is the foreign trade department of Henan KFCC Carbon Co. Ltd. Henan Calgon Carbon Co. Ltd has successful foreign trading experience in Europe Russia Middle East and Southeast Asia etc. we have a wealth of export experience, can timely and effectively deal with all kinds of difficult problems exported to any region. We have RP, HP and UHP grade, diameter from 100-700mm. Welcome to inquiry, we can give you the most competitive price and the best quality graphite electrodes! 

 

UHP450 Graphite Electrode with Nipple UHP Graphite Electrode for Eaf Arc Furnace

UHP450 Graphite Electrode with Nipple UHP Graphite Electrode for Eaf Arc Furnace
UHP450 Graphite Electrode with Nipple UHP Graphite Electrode for Eaf Arc Furnace

 

 

 

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PNEUTEC.IT, 2023