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Graphite Electrode 350mm

  • Origin: China
  • Supply Type: oem service
  • Processing Time: usually for one month
  • Min Order: 10

Supplier Info.

  • Employees Total 5
  • Annual Revenue US$10 Million - US$50 Million

Grate Electrode 350mm

PRODUCT CHARACTERISTIC: Mainly used in steelmaking electric arc furnace, refining furnace, industrial silicon furnace, yellow srus furnace, corundum furnace, etc., as conductive usage.

Grate electrode series products are made of high quality carbon materials.The main products are: RP grate electrode, smelting furnace shaped carbon block, impregnated grate electrode, high power grate electrode, grate crucible, electrode paste, recarburizer, and non-standard specifications of shaped carbon products.

PRODUCT DESCRIPTION

NAME: Grate Electrode

MODEL:350mm

Introduction

The grate electrode is mainly made of petroleum coke and needle coke, and the coal aslt is used as a binder. It is made by calcination, distributing, kneading, forming, roasting, gratization and machining. It's a conductor which release electric energy in the form of electric arc in the electric arc furnace heats and melts the material. the charge can be divided into a regular power grate electrode, a high power grate electrode and an ultra high power grate electrode according to its quality index. The main raw material for grate electrode production is petroleum coke. The regular power grate electrode can be added with a small amount of pitch coke. The sulfur content of petroleum coke and pitch coke cannot exceed 0.5%. Needle coke is also required for the production of high power or ultra high power grate electrodes.

needle coke grate electrode Advantage:

The advantage of grate electrode is that it is easy to process, the electricity discharge processing rate is high, and the grate loss is small.

Production characteristics

The production period is long. The production period of regular power grate electrodes is about 45 days, the production period of ultra high power grate electrodes is more than 70 days, and the production period of grate electrode joints (nipples) requiring multiple impregnation is more longer.

high power grate electrode Application:

Mainly used in electric arc steelmaking furnaces, refining furnaces, industrial silicon furnaces, yellow srus furnaces, electric resistance furnaces, etc., as conductive usage. The grate electrode blank is also used to process a variety of shaped grate products such as enamel, mold, boat and heating pan>

Technical Properties of Grate Electrodes & Nipples

Item

Unit

RP Grate Electrodes

Specific Resistance ≤

Electrodes (E)

μΩ.m

8.5

Nipple (N)

8.2

Flexural Strength ≥

Electrodes (E)

MPa

9.8

Nipple (N)

13.0

Elastic Modulus ≤

Electrodes (E)

GPa

9.3

Nipple (N)

14.0

Bulk Density ≥

Electrodes (E)

ɡ/㎝³

1.58

Nipple (N)

1.63

100-600(C.T.E.) ≤

Electrodes (E)

10-6/℃

2.9

Nipple (N)

2.7

Ash Content ≤

Electrodes (E)

%

0.5

Nipple (N)

0.5

Real Density ≥

Electrodes (E)

ɡ/㎝³

2.18

Nipple (N)

2.2

Allowable Current of Grate Electrodes

NorminalDiameter

RP Grate Electrode

Allowable Current

mm

in

A

A/cm2

75

3

1000-1400

22-31

100

4

1500-2400

19-30

130

5.2

2200-3400

17-26

150

6

3000-4500

16-25

175

7

4000-5500

16-22

200

8

500-6900

16-21

225

9

6000-8200

15-20

250

10

7000-10000

14-20

300

12

10000-13000

14-18

350

14

13500-18000

14-18

400

16

18000-23500

14-18

Size & Dviation of Grate Electrode

(Unit):mm

Norminal Diameter

Actual Diameters

Length

mm

in

Max.

Min.

Black Part Min.

Standard

Allow Deviation

Allow Ruler Deviation

75

3

78

73

72

1000

+/-50

-50-225

100

4

103

98

97

1200

+/-50

-50-225

130

5.2

132

127

126

1200

+/-50

-50-225

150

6

154

149

146

1600

+/-100

-100-275

175

7

179

174

171

1600

+/-100

-100-275

200

8

205

200

197

1600

+/-100

-100-275

225

9

230

225

222

1600

+/-100

-100-275

250

10

256

251

248

1600/1800

+50/-100

-100-275

300

12

307

302

299

1600/1800

+/-100

-100-275

350

14

357

352

349

1600/1800

+/-100

-100-275

400

16

409

403

400

1600/1800

+/-100

-100-275

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