기본 정보
Carbon Content
High-Carbon
Forming Way
Extruded Graphite
Crystal Morphology
Compact Crystalline Graphite
제품 설명
DESCRIPTION
UHP graphite electrode is used for the recycling of steel in the electric arc furnace industry. Its main ingredient is high-value needle coke which is made from either petroleum or coal tar. Graphite electrodes are finished with a cylinder shape and machined with threaded areas at each end. In this way, the graphite electrodes can be assembled into an electrode column using electrode nipple.
In order to meet the requirement of higher work efficiency and lower total cost, large capacity ultra-high power arc furnaces are becoming more and more popular. Because of this, UHP graphite electrodes with diameters of over 500 mm will dominate market.
Basic Info.
Model NO.
UHP550
Certificate
ISO 9001
Application
Melting
Ash
0.3%Max
Resistance (μΩ.M)
4.6-5.8 μΩ.M
Flexural Strength
10-14MPa
Length
2100-2400mm
Nipple Type
3tpi 4tpi 3tpil 4tpil
Brand Name
hongkuo
Transport Package
Wooden Cases
Specification
UHP550
Trademark
HONGKUO
Origin
China
HS Code
8545110000
FEATURE
Withstand large currents, high discharge rate.Good dimension stability, not easy to deform.Resistant to cracking & spalling.High resistance to oxidation and thermal shock.High mechanical strength, low electrical resistance.High machining accuracy, good surface finishing.
APPLICATION
Graphite electrodes are widely used for production of alloy steels, metal and other nonmetallic materials, etc.DC electric arc furnace.AC electric arc furnace.Submerged arc furnace.Ladle furnace.
SPECIFICATION
Table 1: Technical Specification of UHP Graphite Electrode
| Resistance | Density | FlexureStrength | ElasticModulus | AshContent | CTE | CurrentLoad | CurrentDensity |
(inch) | (≤,µ·m) | (≥,g/cm3) | (≥,MPa) | (≤,GPa) | (≤,%) | (100°C-600°C) | (A) | (A/cm2) |
| | | | | | (≤,10-6/°C) | | |
10 | | | | 14 | | | 8100-12200 | 20-30 |
12 | | | | 14 | | | 15000-22000 | 20-30 |
14 | | | | 14 | | | 20000-30000 | 20-30 |
16 | | | | 14 | | | 25000-40000 | 19-30 |
18 | | | | 14 | | | 32000-45000 | 19-27 |
20 | | | 11 | 14 | | | 38000-55000 | 18-27 |
22 | | | 11 | 14 | | | 42000-66000 | 17-26 |
24 | | | 11 | 14 | | | 49000-76000 | 17-26 |
Table 2: Graphite Electrode Size & Tolerance
Diameter(mm) | Length(mm) |
NominalDiameter | ActualDiameter | NominalLength | Tolerance | ShortLength |
(inch) | (mm) | (max.) | (min.) | (roughspot) |
10 | 250 | 256 | 251 | 248 | 1600/1800 | ±100 | -275 |
12 | 300 | 307 | 302 | 299 | 1600/1800 |
14 | 350 | 357 | 352 | 349 | 1600/1800 |
16 | 400 | 409 | 403 | 400 | 1600/1800/2000/2200 |
18 | 450 | 460 | 454 | 451 | 1600/1800/2000/2200 |
20 | 500 | 511 | 505 | 502 | 1800/2000/2200/2400 |
22 | 550 | 562 | 556 | 553 | 1800/2000/2200/2400 |
24 | 600 | 613 | 607 | 604 | 2000/2200/2400/2700 |
SURFACE QUALITY
There should be less than two defects or holes on the electrode surface, the maximum size of which is mentioned in the below chart.There should be no transverse crack on the electrode surface. For the longitudinal crack, the length should be less than 5% of the electrode circumference and the width should be 0.3 to 1.0 mm.The width of black area on electrode surface should be less than 1/10 of the electrode circumference and the length should be less than 1/3 of the electrode.
SpecificationDefectDimension | NominalDiameterofGraphiteElectrode(mm) |
300-400 | 450-600 |
Diameter(mm) | 20-40 | 30-50 |
(<20mmshouldbenegligible) | (<30mmshouldbenegligible) |
Depth(mm) | 5-10 | 10-15 |
(<5mmshouldbenegligible) | (<10mmshouldbenegligible) |
Guidance of Using
Being hard and brittle ,artificialgraphite electrode shall be specially handled.Proper operationg may reduce the consumption and cost.
1. Professional tools should be used for hoisting graphite electrodes. It is strictly forbidden to use a crowbar to prevent impact damage during handling.
2. Graphite electrodes are prohibited from rain, snow and water, and should be kept dry. If it is found to be damp, it should be dried before use, the temperature should not exceed 100 ºC, and the drying time should not be less than 48h.
3. Do not stack near debris such as clay, slag, etc., so as not to pollute the surface of the graphite electrode and affect the conductive effect.
4. Before the graphite electrode is connected, carefully check whether the electrode connector hole is intact, whether the connector thread is damaged, and whether the connector bolt is lost. When the electrode is lifted, the electrode connector thread of the ground terminal should be prevented from being damaged.
5. Dust and debris in the joints and joint holes should be blown dry with compressed air.
6. Graphite electrodes must be tightly connected, and no tilt is allowed during connection. Torque wrenches should be used to prevent excessive force or too small, and the gap is not greater than 0.4mm.
7. The electrode holder should be clamped, not loose and in good contact, and no arc should be generated. Otherwise, the connection will be reddish, oxidized, thinned and broken.
8. If the electrode is lifted with a metal lifting plug, the thread in the joint hole must not be damaged. After lifting, the lifting plug should be unscrewed to prevent dust and debris from falling into the joint hole.
9. When the electrode lifting device of the electric furnace is running, it should be kept stable. After the furnace cover is repaired, check whether the furnace cover is positioned correctly. During smelting, refractory materials are used to close the furnace lid to prevent the oxidation of the upper electrode of the flame in the furnace.
10. The holder should be clamped outside the safety wire of the electrode connector hole area.
11. When distributing the molten pool, the big piece is at the bottom and the small piece is at the top. Do not place the charge with poor conductivity on the top. During melting, the unmelted charge should be handled in time to prevent the collapsed material from breaking the electrode.
FAQ:
♥ When can I get the price?
We usually quote within 24 hours after getting your detailed requirements, like size, quantity etc...
If it is an urgent order, you can call us directly.
♥ What about the lead time for mass product?
The lead time is based on the quantity, about 7-12days. For graphite product, apply Dual-use items
License need about 15-20 working days.
♥ What is your terms of delivery?
We accept FOB, CFR, CIF, EXW, etc. You can choose the most convenient way for you.
♥ Product packaging?
We are packed in wooden cases, or according to your requirements.
♥ Notice
Please note that the price on alibaba is a rough price. The actual price will depends on raw materials,
Exchange rate, wage and your order quantity. Hope to cooperation with you, Thanks!
주소:
5-2-403, Tianyu, Country Garden, Congtai District, Handan City, Xingtai, Hebei, China
사업 유형:
무역 회사
사업 범위:
건축과 장식재료, 경공업 일용품, 공업 설비와 부품, 방직, 안전과 방호, 야금광산물과 에너지, 의약 위생, 전기전자, 제조 가공 기계, 화학공업
회사소개:
허베이 홍쿠오 트레이딩은 중국 허베이 성 핸드안 시 회가타이구에 위치해 있습니다. 이 회사는 약 130km2 규모의 지역에 총 자산 3억 5천만 유안을 보유하고 있으며, 이는 하이테크 민간 기업입니다.
허베이 홍쿠오 트레이딩사는 흑연 전극, 흑연 CRU 어시블, 특수 탄소 흑연 재료 등을 주로 사용합니다. 연간 흑연 제품 생산량은 20, 1000t입니다. 이 회사는 1급 탄소 생산 장비와 강력한 기술 인력을 보유하고 있습니다. 주요 생산 장비는 전자동 분사 시스템, 3500톤 전자 트로드 성형 압출기, 24챔버 링 로스터, 32챔버 더블 I 데크 로스터, 고압 전조장비, CNC 기계 및 국제 고급 하위 처리 자동 라인 및 고급 검출 장비 "Hebei Hongkuo Trading Co., Ltd., "품질에 대한 신뢰를 바탕으로 개발"을 목표로 합니다. 회사의 정신은 선의적이고 승 승의 협력에 기초하고 있다. 국내외 기업들이 협상하고 협조할 수 있도록 환영하며, 고객에게 양질의 서비스와 양질의 제품을 제공할 수 있도록 최선을 다하겠습니다.