33575

CARBON


CARBON BRUSHES

 

CARBON BRUSHES FOR İNDUSTRY AND TRANSPORT

  • stationary commutator motors (AC, DC)
  • stationary ring motors
  • traction commutator motors (AC, DC)

CARBON BRUSHES FOR AUTOMOTİVE İNDUSTRY

  • starters
  • alternators
  • dynamos
  • auxiliary motors

CARBON BRUSHES FOR ELECTRİCAL HAND TOOLS

  • drills
  • grinders
  • saws
  • other

CARBON BRUSHES FOR SPECİAL

 
  • generators for frequency changes
  • small motors and generators in aeroplanes
  • in measuring, regulation and information technics

CARBON BRUSHES FOR HOUSEHOLD APPLİANCES

  • washing machines
  • kitchen robots
  • hair driers
  • vacuum cleaners
  • other
 

 

 

MATERİAL PARAMETERS

CARBONGRAPHİTES

Grade Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRBSh
(mean value)
Recommen.
current
density
Circumferen-
tial velocity
(max.)
Recommen.
pressure on
brush
Tot.voltage
drop
(max.)
Coefficient
of friction
(max.)
Applications
CG 311 1,55 800 85 HR 10/60 12 55 25-35 - - Small universal AC motors - motors for handtools and home appliances 
CG 326 1,53 1300 76 HR 10/60 10 30 25-35     Small universal AC motors - motors for handtools and home appliances 
CG 342 1,45 500 97 NR 10/60 8 30 30-40 7,0 0,30 Small universal AC motors - motors for handtools and home appliances 
CG 343 1,45 500 97 HR 10/60 8 30 30-40 7,0 - Small universal AC motors - motors for handtools and home appliances 

BAKELİTEGRAPHITES

Grade Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRBSh
(mean value)
Recommen.
current
density
Circumferen-
tial velocity
(max.)
Recommen.
pressure on
brush
Tot.voltage
drop
(max.)
Coefficient
of friction
(max.)
Applications
CG 329 1,60 375 85 HR 10/40 10 50 25-35 - - Small universal AC motors - motors for handtools and home appliances 

ELECTROGRAPHITES

Grade Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRBSh
(mean value)
Recommen.
current
density
Circumferen-
tial velocity
(max.)
Recommen.
pressure on
brush
Tot.voltage
drop
(max.)
Coefficient
of friction
(max.)
Applications
EG 605 1,67 33 90 HR 10/100 10 50 30 3,5 0,20 Generators and AC motors, traction motors 
EG 616 1,67 33 90 HR 10/100 10 50 30 3,5 0,20 Generators and AC motors, traction motors 
EG 624 1,65 20 77 HR 10/100 10 40 18 2,9 0,25 Direct-current machines up to 230V, machines with bronze or copper rings 
EG 640 1,70 44 92 HR 10/100 10 50 30 3,3 0,20 DC and AC traction motors
EG 642 1,70 44 100 HR 10/100 10 50 30 3,3 0,15 DC and AC traction motors
EG 657 1,70 44 100 HR 10/100 10 50 30 3,3 0,15 DC and AC traction motors
EG 670 1,60 48 92 HR 10/100 10 50 18-30 3,5 0,20 DC traction motors, direct current motors and generators 
EG 673 1,57 14 82 HR 10/40 10 50 20 3,5 0,20 DC traction motors of lower and medium outputs, generators 
EG 676 1,60 14 75 HR 10/60 10 50 20 3,5 0,20 DC traction motors of lower and medium outputs, generators, battery vehicle 
EG 680 1,60 50 97 HR 10/100 10 50 20 3,6 0,20 DC traction motors, generators exciters, AC motors 

GRAPHITES

Grade Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRBSh
(mean value)
Recommen.
current
density
Circumferen-
tial velocity
(max.)
Recommen.
pressure on
brush
Tot.voltage
drop
(max.)
Coefficient
of friction
(max.)
Metal
content
Applications
CG 318 1,53 18 93 HR 10/20 8 80 20-25 3,8 0,40 - Machines with steel rings for high circumferential velocities - turbogenerators,
hydroalternators 

METALOGRAPHITES

Grade Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRBSh
(mean value)
Recommen.
current
density
Circumferen-
tial velocity
(max.)
Recommen.
pressure on
brush
Tot.voltage
drop
(max.)
Coefficient
of friction
(max.)
Metal
content
Applications
MG 407 3,65 5,50 100 HR 10/60 24 47 20-25 2,6 0,26 60 Small moters and generators for aviation 
MG 410 5,15 0,12 72 HR 10/60 24 20 20 0,5 0,25 88 Asynchronous motors with rings, brushes for grounding rings,starters up to
3 kW / 12V, max. current density 200 Acm-2/20s 
MG 414 5,60 0,09 60 HR 10/40 24 20 30-40 0,6 0,20 92 Startes up to 3kW/12V 
MG 415 3,90 0,35 75 HR 10/60 16 25 20-25 1,0 0,20 70 Generators and motors with rings 
MG 433 4,45 0,20 80 HR 10/40 15 25 20-25 1,1 0,20 75 Dynamos by 15V, generators and motors with rings 
MG 442 3,50 0,75 90 HR 10/40 15 30 20-25 1,3 0,20 65 Brushes for grounding rings, asynchronous motors with rings 
MG 456 2,50 3,50 95 HR 10/40 15 35 30-40 2,0 0,20 33 Auxilliary car motors 80V current density 35 A/cm2 
MG 457 2,65 1,00 95 HR 10/40 15 35 30-40 1,5 0,20 40 Generators and motors with rings current density 35 A/cm2 
MG 458 2,75 3,50 90 HR 10/40 15 35 30-40 2,0 0,20 42 Auxilliary car motors current density 35 A/cm2, battery vehicles 
MG 459 2,75 2,50 90 HR 10/40 15 35 30-40 2,0 0,20 40 Auxilliary car motors current density 35 A/cm2 
MG 466 2,50 8,00 83 HR 10/40 15 35 30-40 2,2 0,20 32 Motors and generators up to 80V, starters up to 6kW/12V, battery vehicles 
MG 470 3,4 1,50 95 HR 10/40 16 35 18-23 1,5 0,20 55 Starters up to 6kW/24V 
MG 475 3,40 0,92 70 HR 10/60 14 30 18-23 1,4 0,20 60 Generators and motors with rings and small motors 

SİLVERGRAPHITES

Grade Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRBSh
(mean value)
Recommen.
current
density
Circumferen-
tial velocity
(max.)
Recommen.
pressure on
brush
Tot.voltage
drop
(max.)
Coefficient
of friction
(max.)
Metal
content
Applications
Ag 35 2,60 5,75 95 HR 10/20 20 20 20-25 - - 35 Small el. machines in measuring and regul. technics, tachodynamos 
Ag 93 6,90 0,06 90 HR 10/40 27 20 20-25 - - 93 Small motors with low voltage in scanning and information technique 

 

CARBON STRİPS

 CARBON STRİPS FOR CURRENT COLLECTORS:

  • carbon strips for railway driving vehicles (locomotives, EMU, metro)
    • standard carbon strips
    • metal impregnated carbon strips
    • adhesively bonded carbon strips
       
  • carbon strips for trams
    • standard carbon strips
    • metal impregnated carbon strips
       
  • carbon strips for trolley buses
    • standard designs
    • special designs according to requirements
       
  • carbon strips and segments for industrial applications according to requirements

MATERIAL PARAMETERS

MATERIALS FOR CARBON STRİPS FOR LOCOMOTİVES, EMU AND TRAMS (TYPİCAL VALUES)

 

Grade

Vol. density (g/cm3)

El. resistivity (μΩm)

Hardness HRBSh (5/150)

Bending strenght (MPa)

Impreg- nation

Load at operation (A/mm)

Peak load (A/mm)

SC 846

1,67

36

95

30

resin 

8

10

SK 162

2,30

5

110

60

Cu

10

12

MATERIALS FOR CARBON STRİPS FOR TROLLEY BUSES (TYPİCAL VALUES)

 

Grade

Vol. density (g/cm3)

El. resistivity (μΩm)

Hardness HRBSh (5/150)

Bending strenght (MPa)

Impreg- nation

Load at operation (A/mm)

Peak load (A/mm)

SC 838

1,66

32

96

35

resin 

3

3,5

SK 156

2,50

9

110

75

Sb

3,5

4,0

SK 167

2,40

5

98

62

Cu

5

6

SK 168

2,30

12

100

58

CuSn

4

5

 

More information upon request.


 

SPECİALTY GRAPHİTE

PRODUCTS FOR MECHANİCAL APPLİCATİONS:

CARBON BEARİNGS AND SEALİNG RİNGS:

  • sliding bearings of water pumps
  • pistons and guide rings
  • sliding bearings for compressors and pumps
  • sealing rings of winchs for water turbine
  • gaskets for exhaustings valve in automotive

CONSTRUCTİON GRAPHİTE:

  • vaccuum furnaces - heaters, construction components
  • crystallizers for continuous metal casting
  • melting crucibles and other components for precious metals processing
  • heating resistance elements
  • crucibles for chemical analyses
  • products for spectral analyses
  • carbon products for glass industry
  • blades for rotating compressors and pumps
  • products for chemical equipment
  • forms for microelectronics
  • graphite cylinders for lubricating glass silks

PURİFİED GRAPHİTE FOR SPECTRAL ANALYSİS:

Virtually all graphite products can be purified in our own purification facility.  
We offer various graphite crucibles and other products for spectral analysis.

PRODUCTS FOR OTHER SPECİAL APPLİCATİONS:

  • sintered products
  • thermosets with carbon filler
  • carbongraphite and electrographite welding electrodes
  • carbongraphite and electrographite semi-products 

MATERIALS:

We produce a broad range of our own materials, as well as we possess an assortment of purchased materials, that enables us to offer to our customers the benefits of both approaches.
After we recieve an inquiry, we offer our customer material according to his specification, we can also recommend the most suitable material for the particular application.

  • Materials we produce are under our control. We use our development to enhance its parameters, also change according to customers requirements is possible. 
  • On the other side, especially for production of specific products, we use materials that we purchase from specialised producers.

OWN MATERİALS:

 CARBONGRAPHITES













 

Mark Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRB
(mean value)
Compression
strength
(min.)
Bending
Strength
(min.)
Poro-
sity
(max.)
Termal
conductivity
(min.)
Term.coeff.
of length.expa.
(max.)
Temperature resistance
in inert atmosphere
 
Temperature resistance
in oxid. atmosphere
Impreg-
nation
Applications
CG 358 1,50 min. 42 95 HR 10/100 50 14 25 12 2,0 1000 350   Machine parts working in liquids-no
emphasis is given to impermeability,resistant rings 
CG 359 1,60 - min. 60 HR 5/20 90 30 2 22 6,0 110 110   Bearings of water pumps, glands, vanes 
CG 360 1,65 - min. 60 Sh 90 30 5 25 6,0 180 180   Machine parts working in liquids,glands, plain
bearings, vanes 
                         

 

 ELECTROGRAPHITES

Mark Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRB
(mean value)
Compression
strength
(min.)
Bending
Strength
(min.)
Poro-
sity
(max.)
Termal
conductivity
(min.)
Term.coeff.
of length.expa.
(max.)
Temperature resistance
in inert atmosphere
 
Temperature resistance
in oxid. atmosphere
Impreg-
nation
Applications
EG 621 1,66 max. 17 97 HR 10/100 70 30 14 - - 2400 350   Moulds for metal casting and moulds for
hot pressing 
EG 624 1,55 20 88 HR 10/100 - - - - - 2400 350   Sealing moulds for glass industry and
microelectronics 
EG 625 1,50 max. 30 83 HR 10/60 25 12 30 - - 2400 350   Wide range of use in technical applications 
                         

 METALGRAPHITES

Mark Volume
density
(mean value)
Specific
elec.resist
(mean value)
Hardness
HRB
(mean value)
Compression
strength
(min.)
Bending
Strength
(min.)
Poro-
sity
(max.)
Termal
conductivity
(min.)
Term.coeff.
of length.expa.
(max.)
Temperature resistance
in inert atmosphere
 
Temperature resistance
in oxid. atmosphere
 
Impreg-
nation
Applications
MG 413 5,80 - 70 HR 10/60 - - - - - - -   Grounded contacts for electrical driving
vehicles-locomotives 
MG 479 4,70 - 85 HR 10/40 - - - - - - -   Sealing rings for exhaust box in cars 
MG 480 4,85 - 102 HR 5/20 - - - - - - -   Sealing rings for exhaust box in cars 
MG 488 5,50 - min. 65 HR 10/100 - - - - - - -   Brake drum linings for eletrical driving
vehicles 

 MATERIALS BASED ON THERMOSETTING PLASTICS WITH CARBON FILLER

Mark Volume
density
(mean value)
Hardness
HRB
(mean value)
Compression
strength
(min.)
Bending
Strength
(min.)
Poro-
sity
(max.)
Termal
conductivity
(min.)
Term.coeff.
of length.expa.
(max.)
Applications
BG 391 1,70 115 HR10/60 150 65 0,5 15 23 Machine parts working in dry conditions (vanes of vacuum pumps)
BG 392 1,65 105 HR10/60 85 55 1,0 - 14 Machine parts working in dry conditions (vanes of vacuum pumps)
BG 394 1,60 112 HR10/60 215 70 0,5 10 28 Machine parts working in liquids and dry conditions (sealing ring, vanes) 

 CARBON MATERIALS FOR SPECTRAL ANALYSES

 

Mark Volume
density
(mean value)
Specific
elec.resist
(mean value)
Bending
Strength
(min.)
Poro-
sity
(max.)
Termal
conductivity
(min.)
Ash
content
(max.)
Purity
Trace elements
B
Purity
Trace elements
Ca
Purity
Trace elements
Cu
Purity
Trace elements
Fe
Purity
Trace elements
Mg
Purity
Trace elements
Si
Purity
Trace elements
Al
Purity
Trace elements
Ti
SE 216 1,70 11 30 30 140 2 0,01 0,10 0,10 0,20 0,01 0,10 0,05 0,01
SE 232 1,65 15 20 30 140 2 0,01 0,10 0,10 0,20 0,01 0,10 0,05 0,01

PURCHASED MATERIALS:

For production of specific products we use materials purchased from specialised producers. More information and other material grades available upon request.

 

PHOTOS OF OUR PRODUCTS:

 





 

TRANSPORT COMPANİES

CARBON BRUSHES:

  • carbon brushes for traction commutator engines
    • trams
    • trolleybuses
    • metro 
  • carbon brushes for other use in vehicles
    • auxiliary electrical engines 

CARBON STRİPS FOR CURRENT COLLECTORS:

  • carbon strips for trams
    • standard strips, resin impregnated
    • metal impregnated strips for high current load
  • carbon strips for trolleybuses
    • standard strips
    • metal impregnated strips
       
  • carbon strips for metro
    • standard strips
    • third rail
  • other carbon strips according to customer requirements

RAİLWAYS

 CARBON AND METAL İMPREGNATED STRİPS FOR CURRENT COLLECTORS:

  • carbon strips for electrical driving vehicles (locomotives, EMU)
    • standard carbon strips
    • metal impregnated carbon strips for high current load
    • carbon strips for ADD system

CARBON BRUSHES:

  • carbon brushes for traction motors 
    • locomotives, EMU

       

  • carbon brushes for electrical motors in vehicles
    • auxiliary motors 

AUTOMOTİVE

 CARBON BRUSHES FOR ELECTROMOTORS:

  • starters
  • alternators
  • auxiliary engines

AERO


SPACE İNDUSTRY

 SEALİNG RİNGS 

  • sealing rings for jet engines

CARBON BRUSHES 

  • dynamostarters
  • electrical auxiliary engines

INDUSTRY

BRUSHES FOR İNDUSTRİAL ENGİNES AND GENERATORS

  • stationary commutator engines (AC, DC)
  • stationary ring engines
  • traction commutator engines (AC, DC)
  • generators
  • DC motors for pumps
  • DC traction motors for forklifts

TECHNİCAL CARBON - BEARİNGS AND SEAL RİNGS

  • bushings and sealing rings for water turbines
  • vanes for pumps and compressors

MİNES AND METALURGY

 MİNES

  • carbon brushes for electrical engines for mining technologies
  • carbon strips for current collectors for mining technologies

METALURGY

  • crystallizers for continuous metal casting
  • heating resistance elements
  • carbon brushes for electromotors for rolling mills

HAND TOOLS AND HOUSEHOLD APPLİANCES

 CARBON BRUSHES FOR HAND TOOLS 

  • drills
  • grinders
  • saws
  • others

CARBON BRUSHES FOR HOUSEHOLD APPLİANCES

  • washing machines
  • kitchen robots
  • hair driers
  • vacuum cleaners
  • other

LABORATUVAR EKİPMANLARI

İŞLENMİŞ KARBON ÜRÜNLERİ

  • ısıtma direnci elemanları
  • kimyasal analizler için potalar
  • spektral analizler için ürünler
  • kimyasal ekipman için ürünler

SPEKTRAL KARBON:

Spektral kullanım için yüksek saflığa sahip grafit ürünler, tüm istenmeyen ellementlerin ve safsızlıkların ortadan kaldırıldığı termo-kimyasal rafinasyon işlemi ile üretiyoruz. Ana kullanım alanları bilim enstitüleri, metalurji, çimento üretimi, mikroelektronik, vakum tekniklerinde uzmanlaşmış laboratuvarlardır.

Uygulama:
  • emisyon spektral analizi (AAS, AES, RFA)
  • grafit elektrotlar, potalar, emisyon spektrometreleri için diğer parçalar
  • grafit anotlar, katotlar, vakum fırınları için ızgaralar

CHEMİCAL İNDUSTRY

CARBON PRODUCTS FOR CHEMİCAL İNDUSTRY

Carbon products are used in chemical and other industries, to meet requirements of handling high temperatures and corrosive chemicals. The unique properties of carbon are:
  • extremely high resistivity against high temperatures,
  • good thermal conductivity and tolerance to quick changes of temperature,
  • resistivity against agressive chemicals and corrosion.
Main applications:
  • thermal exchangers
  • linings of furnaces, vessels
  • absorbers
  • destillation vessels
  • pums and compressors
  • valves, sealing rings, flaps
  • pipes and flanges
  • anodes for electrolysis
  • filler for catalytic converters

RESEARCH AND DEVELOPMENT

GENERAL İNFORMATİON

The ELEKTROKARBON company is active in area of Research and Development of carbon materials and production technologies in order to offer its customers new products and solutions that meet their technical and qualitative requirements.

Research and development is carried out by the team of highly qualified experts in close cooperation with the customers and external partners. 

Producst´s innovation is based on own long-term experience and knowledge of the employees, and cooperation with universities and another sientific institutions.

Also the newest know-how in the areas of material engineering and thermal processing is incorporated into all of the products.

REASEARCH AND DEVELOPMENT ACTİVİTİES

  • Research in the area of carbon materials and development of new elementary materials – examination of physical and chemical properties, effects of variable thermodynamic conditions on resultant material parametres. Current projects: development of new materials for carbon strips for current collectors, vanes for vacuum pumps, aerospace industry
  • Development of new technologies. Current projects: development of technologies for metal impregnation, bonding and soldering of carbon with other materials.
  • Cooperation on projects of current and potential customers: projects that solve specific requirements defined by customers.
  • Activities focused on current products enhancement, and optimisation of processes to achieve optimal production costs and quality.

TESTİNG AND PROOFİNG

As an integral part of the production facility there is a testing and proofing laboratory. For special test there are single-purpose devices built for the purpose.

GENERAL İNFORMATİON

Elektrokarbon a.s. has implemented and maintained system of quality management according to EN ISO 9001, that is an effective tool for identification of customers´ requests and expectations, as well as tracking and enhancing of the level of their satisfaction. The established system of quality management interconnected with own testing facility and chemical laboratories, certified process of adhesively bonding in the area of railways rolling stock, according to norm DIN 6701-2, as well as years of experience, makes for complex system of ensuring quality of all processes and products. 

 

ENVİRONMENT

 

In the area of environment protection these are companies´ main principles:

  • to ensure the lowest possible adverse effect of companies´ activities on environment
  • to implement a principle of prevention against environment polution and a principle of systematic enhancement of environment care in the company.

Elektrokarbon a.s. has implemented and maintains a system of environmental management according to EN ISO 14001. SEM is developed and implemented for management of important environmental aspects and for achieving of compliance with official requirements. The company is interested in achieving and declaring of its good environmental behaviour through management of effects of its activities, products and services, increasing of employess awareness, improvement of communication and relationship, recyclation of waste.

In the area of legal requrements is valid for the company operation besides otherhs also a legislative act of integrated prevention and controll of polution of the environment, that represents a new approach of environment protection. Adhering this act we can achieve high overall level of environment protection.