Graphite Electrode · PDF filesubmerged-arc furnace EFA(for smelting steel ... graphitization furnace producing graphite electrodes,glass ... ufor ladle. TECHNICAL PROPERTIES OF

Catalogue

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Graphite Electrode

Catalogue 目录

CONTENTS

Rawmaterial

Cruushing

Calcining

Miling

Medinmcrushing

ScreeningDosing

kneading

Forming

Baking

Imprenation

Graphitization

InspectionMachiningProducts

Packing

submerged-arc furnace

EFA(for smelting steel)


corrosion resistance

high tempereture

surperior electric conductivity

thermal conductivity

high mechanical strength

PACKING

Detailer parameter of 4TPI NIPPLE

01

02

03

04

05

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20

21

22

23

24

25

26

27

28

29

30

35

31-34


Date of conical electrode nipples

GRAPHITE POWERGRAPHITE CARBON

GRAPHITE CIRTLEGRAPHITE RODGRAPHITE TILE

GRAPHITE CRUCINLEGRAPHITE MOULD

JINLI-GES

CARBORUNDUMCARBONARBON RAISER

PRODUCT OPEATING NOTES

Contact us

Production cautions

01 -08

09- 20

21 -34

About us

Product listGraphite Electrode

Graphite Production

Electrode Nipple

RP

HP

UHP

Our campany

Our vision and mission

Our factory

Our production proc ess

Our production applition

Packaging and transportation 060708

091011

121314

151617

We have an in-depth materials, production, applications and engineering expertise, a comprehensive graphite based product portfolio, such as graphite electrode (RP, HP, UHP),graphite block, graphite power, graphite tile, graphite crucible, graphite mou ld, carbon raiser.

We operate close to our customers through a strong sales network and state-of-art manuf-acuring capablity.

Broad base best solutionswe are the leading Graphite Company

Our Brand Our Claim Our Vision

OUR CAMPANY

We are HGraphite – The Carbon Company, one of the worldwide leading manufacturers of carbon-based products.

With this Broad Base, we offer Best Solutions to our customers with the help of our Company philosophy of HGraphite Excellence.

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Our strength derives from our Broad Base with clearly defined corecompetencies, a comprehensive product portfolio and a global presence.

This is how we want to reach our Vision "We are the leading Carbon Company".

Our Mission shows how we will reach our Vision:

We will utilize our core competencies of high-temperature technologies,applications and engineering know-how to leverage our broad material base.

We will grow the Company and exploit opportunities.

We create innovative solutions jointly with our customers.

We strive for high and sustainable earnings for our shareholders andemployees.

We empower our employees to be innovative.

We create and livea leadership culture based on the principles of HP Excellence embracing change as an opportunity.

OUR VISIONAND MISSION

We are HGraphite – The Carbon Company.

On this basis, we offer our customers Best Solutions with the help of our company-wide philosophy HGraphite Excellence.

www.hwww.hgraphite.com

OUR FACTORY

HP Graphite (Beijing) Co., Ltd was incorporated in 1999 founded by people with long term technical experience in Carbon especially Graphite industry. The chief technical direct-or came from a state owned Carbon Company with more than 20 years production experie-nce.

We have an in-depth material, production, application and engineering expertise, a com-prehensive graphite and carbon related product range and an integrated value chain. We produce and offer a wide variety of Graphite Electrodes and Other Graphite Products. The entire range, we manufacture includes Ultra High Power Graphite Electrodes, High Power Graphite Electrodes and Regular Power Graphite Electrodes and and graphite based produ-cts.

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OUR PRODUCTION PROCESS

Rawmaterial

Crushing

Calcining

Milling

Mediumcrushing

ScreeningDosing

kneading

Forming

Baking

Impregnation

Graphitization

InspectionMachiningProducts

Packing

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Graphite electrode is a major conduction material used in the electric smelting industry, which has the properties of superior electric conductivity, thermal conductivity, high mecha-nical strength, oxidation and corrosion resistance in high temperature, graphite electrode is typically used in EAF(for smelting steel), submerged-arc furnace(for producing ferrodalloy,pure silicon,phosphor,matte,calcium carbide,ect),and electric resistance furnace,such as graphitization furnace producing graphite electrodes,glass-melting furnace,electric furnaces producing carborundum etc.

submerged-arc furnace



corrosion resistance

high tempereture

surperior electric conductivity

thermal conductivity

high mechanical strength

ELECTRODE APPLITION

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PACKING

Graphite electrode is packaged by wooden cages and nipple is packaged by wooden boxes. Graphite electrode and nipple can be packaged together according to the requirements of customers. The productsare protected vy waterproof and dustproof plastic inside and fixed by steel bands which fits for land and sea transportation.

PACKAGING & TRANSPROTATION

packaging

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Packaing details

Picture of packaing

NOMINAL

DIAMETERPCS/ORATE

ELECTRODE PACKAGINGELECTRODE AND NIPPLE

PACKAGED TOGETHER

APPROXIMATE

WEIGHT

OVERALL

DIMENSION

APPROXIMATE

WEIGHT

OVERRALL

DIMENSION

mm inch kg mm kg mm

300×1900 12×75 3 665 2000×970×400 685 2200×970×400

350×1900 14×75 3 844 2000×1120×450 929 2200×1120×450

400×1900 16×75 3 1182 2000×1270×500 1227 2200×1280×500

400×2100 16×83 2 1300 2200×1270×500 1345 2400×1280×500

450×1900 18×75 2 1003 2000×970×550 1043 2200×970×550

450×2100 18×83 2 1100 2200×970×550 1140 2400×970×550

500×1900 20×75 2 1267 2200×1070×600 1322 2200×1070×600

500×2100 20×83 2 1400 2200×1070×600 1456 2450×1070×600

550×2100 22×83 2 1690 2200×1170×650 1760 2450×1070×650

550×2400 22×95 2 1940 2500×1170×650 2010 2450×1170×650

600×1900 24×75 2 1900 2200×1270×700 1760 2250×1270×700

600×2400 24×95 2 2300 2500×1270×700 2380 2750×1270×700

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storage & transportation

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OUR PRODUCT

contents

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REGULAR POWER ELECTRODE

Our production made of high-quality low ash materials, such as petroleum coke,needle coke and coal pitch.

From calcining,burdening,kneading,forming,baking to pressure impregnation,graphitizationwe pay attention to every detail to make it boutique.

We know machining is very important , so we precision machined with professional CNC machining to make sure high quality.

Such of the products own characteristics with low resistivity, good electrical conductivity,low ash,compact structure,good antioxidation and high mechanical strength

Features of Benefits

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Technical properties

SPECIFICATIONS AND ALLOWANCE OF GRAPHITE ELECTRODESDimeter(mm) Length(mm)

Nominal Diameter Actual DiameterNominal Length

Allowance

mm inch max min mm Short Dimenaion

300 12 307 302

16001800

length Max Min

350 14 357 352

±100 -100 -275400 16 409 403

450 18 460 454

500 20 511 505 1600/1800/2000/22001800/2000/

2200±100 -100 -275550 22 556 553

600 24 613 607

Specifications and allowance

TECHNICAL PROPERTIES OF GRAPHITE ELECTRODES

ITEM UNIT

MMNPDIA 300-600mm

STANDARD SOLID SURVEY

ELECTRODE NIPPLE ELECTRODE NIPPLE

RESISTIVITY≯ μΩm 9.0-10.5 8.5 8.0-9.0 5.5

BENDING STRENGH≮ MPa 6.4-7.8 13 9.0-10 15

ELASTIC MODULUS≯ GPa 9.3 14 9 13.7

Ash≯% 0.3 0.3 0.3 0.3

BULK DENSITY ≮ g/cm3 1.52 1.68 1.56-1.62 1.7

CTE ≯ (100-600℃) ×10-6/℃ 2.9 2.8 2.4 2.2

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Suggested current-capacities

SUGGESTED CURRENT-CAPACITIES OF ELECTRODESNominal Diameter Suggested Current-

Carrying Capaities Current Density

mm inch

300 12 10000-13000 14-18

350 14 13500-18000 14-18

400 16 18000-23500 14-18

450 18 22000-27000 13-17

500 20 25000-32000 13-16

600 24 30000-36000 12-15

ELECTRODE SURFACE QUALITY

Sepecification

Defect dimension

Nominal Dianeter(mm)

300-400 450-600

Diameter 20-40 30-50

Depth 5-10 10-15

Remarks: when used in elect s, recommend current capacity is 90% , and 110% when ufor ladle.

Ellectrode surface quality

Remarks:1. There should be less than two defects or holes on the electrode surface, the max size of which is mentioned in the below chart.2. 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 in between 0.3-1.0mm.3. The width of black area on electrode surface should be less than 1/10 of electrode circumference and the length less than 1/3 of electrode.

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HIGH POWER ELECTRODE






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SPECIFICATIONS AND ALLOWANCE OF GRAPHITE ELECTRODESDimeter（mm） Length (mm)


Allowance

mm in max min mm length Max Min

300 12 307 302

16001800

±100 -100 -275350 14 357 352

400 16 409 403

450 18 460 454

500 20 511 505 1600/1800/2000/22001800/2000

±100 -100 -275550 22 556 553

600 24 613 607




ITEM UNIT

MMNPDIA 300-600mm



RESISTIVITY≯ μΩm 7.0-7.5 6.5 6.5-7.0 4.5

BENDING MPa 9.8-10.5 14 12-15 15-18

ELASTIC MODULUS≯

GPa 12 16 12 14

Ash(MAX) % 0.3 0.3 0.3 0.3BULK

DENSITY≮ g/cm3 1.6 1.7 1.68-1.73 1.75

CTE(MAX) 600℃)

×10-6/℃ 2.4 2.2 2.2 2.0(100-600℃)




Sepecification Defect dimension


300-400 450-600

Diameter 20-40（＜20 ） 30-50（＜30 ）

Depth 5-10（＜5 ） 10-15（＜10 ）

SUGGESTED CURRENT-CAPACITIES OFELECTRODES

Nominal Diameter Suggested Current-Carrying Capaities

Current Densitymm inch

300 12 13000-17400 17-24

350 14 17400-24000 17-24

400 16 24000-32000 16-24

450 18 32000-40000 16-24

500 20 40000-48000 15-24

600 24 48000-56000 14-24



Remarks:1. There should be less than two defects or holes on the electrode surface, the max size of which is mentioned in the below chart.2. 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 in between 0.3-1.0mm.

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ULTRA-HIGH POWER ELECTRODES






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ITEM UNIT

MMNPDIA 300-600mm



RESISTIVITY≯ μΩm 6.2-6.5 5.5 5.0-6.0 4

BENDING STRENGH≮ MPa 10.5 16 14-16 18-20

ELASTIC MODULUS≯ GPa 14 18 12 14

Ash≯ % 0.3 0.3 0.3 0.3

BULK DENSITY ≮ g/cm3 1.64-1.65 1.70-1.72 1.72-1.75 1.78

CTE ≯ (100-600℃) ×10-6/℃ 1.5 1.4 1.3 1.2

SPECIFICATIONS AND ALLOWANCE OF GRAPHITE ELECTRODESDimeter(mm) Length(mm)


Allowance

mm inch max min mm Short Dimenaion

300 12 307 302

16001800

length Max Min

350 14 357 352

±100 -100 -275400 16 409 403

450 18 460 454

500 20 511 505 1600/1800/2000/22001800/2000/

2200

±100 -100 -275550 22 556 553

600 24 613 607



16

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Sepecification Defect dimension


300-400 450-600

20-40 30-50

5-10 10-15

SUGGESTED CURRENT-CAPACITIES OFELECTRODESNominal Diameter Suggested Current-

Carrying Capaities （A）

Current Density（A/cm2）mm inch

300 12 15000-22000 20-30

350 14 20000-30000 20-30

400 16 25000-40000 19-30

450 18 32000-45000 19-27

500 20 38000-55000 18-27

600 24 40000-58000 17-25

Diameter

Depth



Remarks:1. There should be less than two defects or holes on the electrode surface, the max size of which is mentioned in the below chart.2. 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 in between 0.3-1.0mm.


ELECTRODE NIPPLE

DDIIMMEENNSSIIOONNSS OOFF TTRRUUNNCCAATTEEDD NNIIPPPPLLEESS((44TTPPII))

Diameter Nipple SocketPitch

mm inch D L d2 l d1 H

300 12 177.80 -0.5-0 215.90 -1-0 129.20 -5-0 ＜7 171.48 0-＋0.5 114.00 0-＋7 6.35

350 14 203.20 -0.5-0 254.00 -1-0 148.20 -5-0 ＜7 196.88 0-＋0.5 133.00 0-＋7 6.35

400 16 222.3 -0.5-0 304.80 -1-0 158.80 -5-0 ＜7 215.93 0-＋0.5 158.40 0-＋7 6.35

400 16 222.3 -0.5-0 355.60 -1-0 150.00 -5-0 ＜7 215.93 0-＋0.5 183.80 0-＋7 6.35

450 18 241.30 -0.5-0 304.80 -1-0 177.90 -5-0 ＜7 234.98 0-＋0.5 158.40 0-＋7 6.35

450 18 241.30 -0.5-0 355.60 -1-0 169.42 -5-0 ＜7 234.98 0-＋0.5 183.80 0-＋7 6.35

500 20 269.9 -0.5-0 355.60 -1-0 198.00 -5-0 ＜7 263.56 0-＋0.5 183.80 0-＋7 6.35

500 20 269.9 -0.5-0 181.08 -1-0 181.08 -5-0 ＜7 263.56 0-＋0.5 234.60 0-＋7 6.35

550 22 298.45 -0.5-0 226.58 -1-0 226.58 -5-0 ＜7 292.13 0-＋0.5 183.80 0-＋7 6.35

550 22 298.45 -0.5-0 209.65 -1-0 209.65 -5-0 ＜7 292.13 0-＋0.5 234.60 0-＋7 6.35

600 24 317.5 -0.5-0 245.63 -1-0 245.63 -5-0 ＜7 311.18 0-＋0.5 183.80 0-＋7 6.35

600 24 317.5 -0.5-0 228.70 -1-0 228.70 -5-0 ＜7 311.18 0-＋0.5 234.60 0-＋7 6.35


18

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DIMENSIONS OF TRUNCATED NIPPLES(3TPI)Diameter Nipple Socket

Pitchmm inch D L d2 l d1 H

300 12 177.16 -0.5-0 270.9 -1-0 116.9 -5-0 ＜10 168.73 0-＋0.5 141.5 0-＋7 8.47

350 14 215.9 -0.5-0 304.8 -1-0 150.0 -5-0 ＜10 207.47 0-＋0.5 158.4 0-＋7 8.47

400 16 215.9 -0.5-0 304.8 -1-0 150.0 -5-0 ＜10 207.47 0-＋0.5 158.4 0-＋7 8.47

400 16 241.3 -0.5-0 338.7 -1-0 169.8 -5-0 ＜10 232.87 0-＋0.5 175.3 0-＋7 8.47

450 18 241.3 -0.5-0 338.7 -1-0 169.8 -5-0 ＜10 232.87 0-＋0.5 175.3 0-＋7 8.47

450 18 273.05 -0.5-0 355.6 -1-0 198.7 -5-0 ＜10 264.62 0-＋0.5 183.8 0-＋7 8.47

500 20 273.05 -0.5-0 355.6 -1-0 198.7 -5-0 ＜10 264.62 0-＋0.5 183.8 0-＋7 8.47

500 20 298.45 -0.5-0 372.6 -1-0 221.3 -5-0 ＜10 290.02 0-＋0.5 192.2 0-＋7 8.47

550 22 298.45 -0.5-0 372.6 -1-0 221.3 -5-0 ＜10 290.02 0-＋0.5 192.2 0-＋7 8.47


Date of conical electrode nipples

NIPPLENIPPLE

PARALLAXPARALLAX

NOTE:The teachical index of the connector is shown in the tachnical index of the supporting electode.

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When connecting, the electrode should be aligned with the center axis of the nipple.

Production cautions

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-------

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×

------

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-------

The electrode clamp holder should be placed outside of the two security lines where the nipple is to be positioned.

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. . ..

. .. ...

20-30mm

Before screwing the electrode, the dust on the surface of the electrode should be blown out with compressed air.

It is necessary to clean out the dirt in the socket with compressed air when a new electrode is connected to the nipple.

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GRAPHITE POWER

21

Specifications

F.C 99.9%, 99%, 98%, 98.5%, size:0-0.05mm, 0-0.05mm 0.3-5mm, 0.5-5mm, 1-5mm, 3-8mm, 5-8mm, 5-10mm

Description & Application

Synthetic graphite powder is shaped in grain, micro granular. Most synthetic graphite powder goes to carbon raising in steel mainly used as carbon raiser, reducer, foundry modifier, fireproof etc, with some used in batteries and brake linings. It offers high purity, excellent lubricity and electrical conductivity.

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GRAPHITE BLOCKS

Physicochemical indexes

GSK GRADE mm TSK GRADE/PSGRADE mm400 400 1800-2000 585 545 3000500 500 1800-2000 585 590 3000650 400 1800-2000 445 435 3000850 400 1800-2000 1010 545 3000

ITEM UNIT GSK TSK PSKBENDING

STRENGTHMpa ≥15 ≥14.5 ≥14

GRANULARITY mm 0.8 2 4ASH

CONTENT% ≤0.3 ≤0.3 ≤0.3

RESISTIVITY μΩm ≤7.5 ≤8 ≤8.5ELASTIC

MODULUSGpa ≤8 ≤7 ≤6

BULK DENSITY

g/cm3 ≥1.74 ≥1.72 ≥1.72 CTE 10-6/℃ ≤3 ≤2.5 ≤2

COMPRESSIVE STRENGTH

Mpa ≥36 ≥35 ≥34 POROSITY % ≥18 ≥20 ≥22

Product standard

Application: Graphite Blocks are widely used in the Tooling (EDM), Mould making (EDM), and General Manufacturing industries.

Characteristics: Graphite Blocks features in high bulk density, low resistivity, oxidation resistance, corrosion resistance, high temperature resistance and good electrical conductivity, etc.

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Product standard

Physicochemical indexes

DIAMETER HEIGHT UNIT DIAMETER HEIGHT UNIT560 420 mm 1100 525 mm650 400 mm 1105 584 mm660 630 mm 1120 400 mm720 630 mm 1120 584 mm765 525 mm 1232 584 mm820 630 mm 1245 380 mm850 400 mm 1270 380 mm

ITEM UNIT GSK TSK PSKBENDING

STRENGTHMpa ≥15 ≥13.5 ≥8

GRANULARITY mm 0.8 2 4ASH

CONTENT% ≤0.3 ≤0.3 ≤0.3

RESISTIVITY μΩm ≤7 ≤9 ≤10ELASTIC

CONTENTGpa ≤8 ≤14 ≤14

BULK DENSITY g/cm3 ≥1.74 ≥1.68 ≥1.62 CTE 10-6/℃ ≤3 ≤3 ≤3

COMPRESSIVE STRENGTH

Mpa ≥36 ≥30 ≥28 POROSITY % ≥18 ≥22 ≥22

GRAPHITE BLOCKS

1.Characteristics: Graphite Blocks features in high bulk density, low resistivity, oxidation resistance, corrosion resistance, high temperature resistance and good electrical conductivity, etc.

2.Usage: Graphite Blocks are widely used in the Tooling (EDM), Mould making (EDM), and General Manufacturing

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GRAPHITE ROD

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GRAPHITE TILE

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GRAPHITE CRUCINLE

ITEM UNIT INDEX

REFRACTORINESS ℃ ≥1630

CARBON CONTENT % ≤98

APPARENT PORODITY

% ≤20

BULK DENSITU g/cm3 ≥16.7

RESISTIVITY μΩm ≤14

26

1.specification: diameter 300-600mm. could be processed as your requirement.

3.application

Graphite crucinle have good temperature conductivity. Widely used in smelting of Non-ferrous metal and alloy.


GRAPHITE MOULD

27

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SILICON CARBIDE

28

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CARPHITE ELECTRODE SCRAPS/GES

29

Graphite scrap arises comes from graphitization and machining process of graphite products. The scraps often used as additive and conduction material in steelmaking and casting industry, also can be made to parts according to the size. They are widely used in arc furnace(for steel making) and electrochemical furnace (for metallurgical and chemical industry).

Our graphite products have feature of excellent conducting property,compact structure,low elasticity modulus,high

Supreme material qualityPure and fineWide range of usability High carbon, low sulfur & resistanceLead in 20 days, with ready stock 100 MTCompetitive price

Features of Graphite Electrode Scraps:

GRADE UNIT 1 2 3 4 5 6 7FIXED CARBON % 98 95 93 91 90 85 82

MOISTURE W % 0.2 0.2 0.5 0.5 0.5 1 1.5St.d % 0.17 0.2 0.4 0.5 0.6 1 1Ad % 1 4 5 7 8 10 13

Vdaf % 1 1 2 2 2 5 5

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CARBON RAISER

ITEM UNIT INDEX

REFRACTORINESS ℃ ≥1630

CARBON CONTENT % ≤98

APPARENT PORODITY

% ≤20

BULK DENSITU g/cm3 ≥16.7

RESISTIVITY μΩm ≤14

30


PRODUCT OPEATING NOTES

43

1 2

31

1. Showerproof cloth should be covered to prevent the rains when transporting the electrodes.2. Be cautious not to hit the electrode when use forklift to transport the pilling-up electrodes, loading one layer at a time.3. When load and unload using cane , additional steel rope is reqired. Be sure not to lift the steel belt on the eletrode.4. The electrode should be stored in a clean, dry place. When stock in open area, showerproof cloth should be covered and pile up at most 4 layers.

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7

65

8

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5. Electrodes should be dried next to electric furnace before using, the temperature should not exceed 150℃ and within 24 hours.6. Please use specified tool to cut off steel belts around the electrode. Do NOT use the crane to cut.7. Please clean the electrode threads first before connection, then screw the nipple into one end of the electrode. Be careful not to hit the threads hard. It is not recommended to connect the nipple to the electrodes being used. 8. The compressed air free of oil and water is the only way to clean the electrode threads. Do NOT use steel brush and abrasive cloth to clean up.

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9 10

1211

33

9. Use rotatable elastic hook, place soft cushions under the graphite nipple to prevent the damage of threads.10. Use the compressed air free of oil and water to clean up the inside of electrodes before make the connection.11. Lift the electrode by a elastic hook, transfer to the furnace top, get right center point, move down slowly, screw gradually and fasten by loop hoop.12. Fasten using specialized calipers as per the regulations by the way of mechanical or hydraulic method.

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13 14

15 16

34

13. The touching end of the two electrode should be screwed at a suggested torque shown in the above chart, not to press to hard or not to touch at all.14. The electrode should be held in between the two white boundary line by the holder, the touching surface of the holder and the electrode should be cleaned regularly15. In order for not breaking the electrode, do NOT put isolation block into the furnace. The working currency of the electrodes should be in accordance to the instructions of the electrode manual.16. In order for not breaking the electrode, please put the large size material at the bottom and the small size material at the top.

Diameter DiameterTorque Torque

Inch Inch mm mmKg/m Kg/m


Documents

Graphite Electrode · PDF filesubmerged-arc furnace EFA(for smelting steel ... graphitization furnace producing graphite electrodes,glass ... ufor ladle. TECHNICAL PROPERTIES OF