Production

1. The use of carbon welding electrodes

The main use of carbon welding electrodes is the process of arc-air gouging and cutting. The essence of the process of cutting and gouging consists in partial melting of workpieces with electric arc while removing the melted material using compressed air.

The advantage of using carbon electrodes in a.n. process is elimination of such processing methods as chiselling, polishing, gouging and cutting with acetylene torch. The effect of using carbon electrodes is: 

  • the ease of the process
  • high efficiency of the process
  • reduced labor nuisance
  • economics of the process

Processes in which the carbon electrodes are most relevant are:

  • welding of steel, cast irons and nonferrous metals
  • arc cutting and gouging
  • removing of old seams, finishing treatment of the seams
  • cleaning and repair of cast iron and non-ferrous metals
  • under water metal cutting

2. The production process.

In order to enhance the intensity of electro-pneumatic process of cutting and gouging the carbon electrodes are coated with a layer of electrolytic copper. For customers with special current requirements there is a possibility of producing electrodes in special dimensions.

2. Range of offered electrodes:

  • ESW -253 Welding electrodes non-copper, round or rectangle
  • ESM - 257 Welding electrodes copper, round or rectangle
  • ESC - 270 Welding electrodes copper for under water cutting, round with a hole

3. Dimensions

Type of electrodes

Diameter

Φ of an elektrode

[ mm ]

Standard lengths

[ mm ]

Copper layer thickness

[ mm ]

ESW-253

4

305 - 500

-

5

6

8

10

13

16

19

500 - 1000

ESM-257

4

305 - 450

> 0,05

5

6

> 0,06

8

10

> 0,08

13

> 0,10

16

19

4x12

400

3x25

4x20

5x20

6x20

ESC-270

10/3

220

> 0,20

4. Physical and mechanical parameters

Parameter

Entity

range of elektrodes

ESW-253

ESM-257

ESC-270

Apparent density

g/cm3

1,7

1,7

1,7

Ash content

%

0,5

0,5

0,5

Proper electrical resistance

μΩm

17

17

17

Mechanical resistance to bending

MPa

30

30

30

The layer thickness of copper coatings

mm

-

0,05 – 0,20

0,20

Moisture content

%

0,1

0,1

-

5. Recommended current load.

Assortment of electrodes

Dimensions of the electrode section

[ mm ]

Current load

[ A ]

ESM-257

Φ 4

100 – 180

Φ 5

150 – 230

Φ 6

200 – 350

Φ 8

300 – 450

Φ 10

400 – 550

Φ 13

550 – 900

Φ 16

750 – 1200

Φ 19

1200 – 1600

4X12

290 -440

3X25

440 – 520

4X20

500 – 600

5X20

550 – 800

6X20

600 – 900

ESC-270

Φ 10/3

400 - 550

6. Packing

Dimensions of the electrode section

[ mm ]

Quantity of electrodes in the package

[ mm ]

Weight 100 piece.

[ kg ]

Φ 4

100

1,0

Φ 5

100

1,36

Φ 6

100

2,18

Φ 8

100

2,96

Φ 10

50

4,82

Φ 13

30

7,60

Φ 16

20

12,88

Φ 19

20

14,50

4X12

100

3,50

3X25

100

6,00

4X20

100

6,64

5X20

100

7,43

6X20

50

8,89

Φ 10/3

50

3,70