Perii metal grafit
Periile executate din metal-grafit sunt recomandate pentru echiparea motoarelor de curent continuu cu inele, motoare de utilizare generala, motoare din siderurgie, industria auto.
Caracteristici tehnice
|
Grupa de semifabricat |
Marca |
Densitate aparenta g/cm³ |
Duritate Rockwell HR 10/60 |
Rezistenta la incovoiere MN/m² |
Rezistivitate µÐm |
Cadere de tensiune 2Uc |
Coeficient de frecare µ |
Viteza medie de uzura WE |
|
Metal-grafit |
MGR -10 |
2,4...3,2 |
80...115 |
25 |
5,00...13,0 |
1,2...1,9 |
0,20 |
8,0 |
|
MGR - 12 |
3,3...3,6 |
80...120 |
38 |
1,50...4,00 |
max. 1,6 |
0,20 |
5,5 |
|
|
MGR - 14 |
3,9...4,4 |
60...100 |
25 |
0,10...0,30 |
max. 1,6 |
0,20 |
20,0 |
|
|
MGR - 15 |
4,4...4,8 |
60...90 |
25 |
0,30...1,10 |
max. 1,4 |
0,22 |
12,0 |
|
|
MGR - 16 |
4,8...5,7 |
70...100 |
35 |
0,05...0,14 |
max. 0,8 |
0,20 |
8,5 |
|
|
MGR - 17 |
4,2...5,8 |
50...120 |
22 |
0,15...0,70 |
max. 1,1 |
0,20 |
20,0 |
|
|
MGR - 18 |
4,6...5,6 |
45...105 |
35 |
0,10...0,24 |
max. 1,5 |
0,20 |
20,0 |
|
|
MGR - 20 |
3,3...4,0 |
80...105 |
25 |
1,20...2,80 |
max. 1,5 |
0,30 |
6,5 |
|
|
MGR - 23 |
2,9...3,4 |
75...115 |
30 |
max. 11 |
max. 12 |
0,15 |
6,0 |
|
|
MGR - 24 |
5,8...6,8 |
80...120 |
45 |
0,035...0,10 |
max. 0,5 |
0,25 |
16,0 |
|
|
MGR - 25 |
4,7...5,7 |
60...110 |
35 |
0,06...0,12 |
max. 1,6 |
0,25 |
22,0 |
|
|
MGR - 26 |
4,1...4,6 |
min. 65 |
min. 30 |
max. 45 |
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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 |
|
Metal-grafit |
MGR-10 |
15 |
35 |
15...25 |
|
MGR-12 |
20 |
30 |
20...35 |
|
|
MGR-14 |
20 |
30 |
20...30 |
|
|
MGR-15 |
20 |
20 |
18...20 |
|
|
MGR-16 |
20 |
20 |
22...60 |
|
|
MGR-17 |
15 |
25 |
18...22 |
|
|
MGR-18 |
20 |
40 |
20...30 |
|
|
MGR-20 |
20 |
20 |
18...20 |
|
|
MGR-23 |
12 |
40 |
20 |
|
|
MGR-24 |
20 |
20 |
20 |
|
|
MGR-25 |
20 |
20 |
20 |
|
|
MGR-26 |
20 |
30 |
20...35 |
METALOGRAPHITES-IMPORT
|
Grade |
Volume |
Specific |
Hardness |
Recommen. |
Circumferen- |
Recommen. |
Tot.voltage |
Coefficient |
Metal |
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 |
