Perii electrografit
Periile electrografitice sunt utilizate in general pentru motoare si generatoare de curent continuu, masini stationare pentru echipamente industriale, masini tehnologice utilizate in siderurgie, textile, industria celulozei si hartiei, prelucrarea cauciucului, servomotoare cu intrefier axial, motoare electrice universale. In tractiunea electrica, varietatile periilor electrice sunt folosite pentru echiparea masinilor electrice auxiliare pentru locomotive si pentru metrou, si pentru echiparea motoarelor de tractiune urbana (tranvaie si troleibuze).
Caracteristici tehnice
|
Grupa de semifabricat |
Marca |
Densitate aparenta g/cm³ |
Duritate Rockwell HR10/60 |
Rezistenta la incovoiere MN/m² |
Rezistivitate µÐm |
Cadere de tensiune 2Uc |
Coeficient de frecare µ |
Viteza medie de uzura WE |
|
Electrografit |
EGR -3 |
1,55...1,70 |
110...120 |
17 |
55...75 |
1,0...2,8 |
0,20 |
6,0 |
|
EGR - 4 |
1,50...1,65 |
105...115 |
18 |
45...60 |
1,5...3,0 |
0,20 |
5,0 |
|
|
EGR - 5 |
1,55...1,75 |
110...120 |
21 |
45...60 |
1,0...3,5 |
0,25 |
7,0 |
|
|
EGR - 8 |
1,60...1,75 |
100...120 |
16 |
30...50 |
1,9...2,6 |
0,20 |
5,0 |
|
|
EGR - 9 |
1,60...1,75 |
85...120 |
22 |
16...35 |
1,0...3,6 |
0,15 |
2,5 |
|
|
EGR -10 |
1,60...1,75 |
80...115 |
22 |
15...28 |
1,8...2,6 |
0,30 |
4,0 |
|
|
EGR -12 |
1,65...1,80 |
100...125 |
27 |
30...45 |
1,9...2,8 |
0,20 |
3,0 |
|
|
EGR -14 |
1,60...1,75 |
90...120 |
20 |
25...40 |
1,6...2,9 |
0,20 |
2,5 |
|
|
EGR -16 |
1,55...1,70 |
90...110 |
16 |
28...38 |
1,4...2,4 |
0,19 |
2,5 |
|
|
EGR -18 |
1,55...1,70 |
90...120 |
18 |
30...52 |
1,4...3,0 |
0,20 |
3,5 |
|
|
EGR -19 |
1,60...1,75 |
90...125 |
14 |
12...20 |
1,8...3,5 |
0,30 |
6,0 |
|
|
EGR -20 |
1,55...1,75 |
100...125 |
21 |
35...52 |
0,6...2,5 |
0,20 |
7,5 |
|
|
EGR -23 |
1,60...1,75 |
70...115 |
16 |
20...30 |
1,5...2,8 |
0,20 |
4,0 |
Parametrii de exploatare in conditii normale de utilizare
|
Grupa de semifabricat |
Marca |
Densitatea de curent A/cm² |
Viteza periferica maxima m/s |
Presiunea pe perie kN/m² |
|
Electrografit |
EGR - 3 |
10 |
50 |
20 - 22 |
|
EGR - 4 |
12 |
55 |
20 - 22 |
|
|
EGR - 5 |
10 |
40 |
20 - 55 |
|
|
EGR - 8 |
10 |
40 |
20 - 40 |
|
|
EGR - 9 |
9,5 |
50 |
20 - 50 |
|
|
EGR - 10 |
12 |
40 |
18 - 30 |
|
|
EGR - 12 |
12 |
50 |
20 - 35 |
|
|
EGR - 14 |
10 |
40 |
20 - 50 |
|
|
EGR - 16 |
8,5 - 10 |
20 - 35 |
14 - 50 |
|
|
EGR - 18 |
10 - 12 |
50 |
18 - 20 |
|
|
EGR - 19 |
8 - 10 |
50 |
18 - 20 |
|
|
EGR - 20 |
10 |
40 |
20 - 30 |
|
|
EGR - 23 |
10 - 12 |
45 |
18 - 22 |
ELECTROGRAPHITES - import
|
Grade |
Volume |
Specific |
Hardness |
Recommen. |
Circumferen- |
Recommen. |
Tot.voltage |
Coefficient |
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 |