Nthawi zambiri, busbar pakati pa mapeto a DC graphitization ng'anjo rectifier kabati ndi conductive elekitirodi mutu ng'anjo amatchedwa ukonde waufupi, ndi busbar ntchito mu ng'anjo graphitization nthawi zambiri amakona anayi. Busbar ya ng'anjo ya graphitization imapangidwa ndi mkuwa ndi aluminiyamu. Copper imakhala ndi mphamvu zamakina apamwamba, madulidwe abwino amagetsi komanso kukana kwamphamvu kwa dzimbiri. Aluminiyamu ndiyocheperako pang'ono, koma aluminiyumu ndiyotsika mtengo ndipo imakhala ndi kulemera kopepuka.
Gulu 3-2 Zogwirizana ndi magwiridwe antchito amkuwa ndi aluminiyamu
| 材 料 | 比重 | 极限强度 (MPa) | 电阻率 (µΩm) | 电阻的温度系数(1/℃） |
| 紫 铜 | 8.9 | 220 | 0.016 | 4.3 × 10-3 |
| 铝 | 2.7 | 110 | 0.025 | 4.7 × 10-3
|
Popeza kukana kwa ng'anjo ya ng'anjo ya graphitization ndi yaying'ono, makamaka kumapeto kwa kufalikira kwa mphamvu, kukana kwa ng'anjo kumakhala kocheperako, ndipo kutsika kwa ukonde waufupi kumawonjezeka, zomwe zimapangitsa kuti mphamvu iwonongeke. Chifukwa chake, ngati ng'anjo ya graphitization imatha kugwira ntchito motetezeka komanso mwachuma imakhala ndi ubale wapamtima ndi mawonekedwe aukonde waufupi.
Mfundo yofunikira kwambiri ndikuchepetsa kutsekeka kwa ukonde waufupi ndikusunga ukonde wonse waufupi ndikutsitsa pang'ono. Pali zolumikizana zosiyanasiyana mumana amfupi a ng'anjo ya graphitization. Ngati pali kukhudzana pakati pa electrode conductive ndi basi yamkuwa, kukhudzana pakati pa basi yofewa yamkuwa ndi basi ya aluminiyamu, kukhudzana pakati pa basi ya aluminiyamu, etc., kukhudzana kumeneku kudzatulutsa kukana kukhudzana, kukhudza makhalidwe a ukonde wonse waufupi. . Kukana kukhudzana kwa woyendetsa yemwe ali ndi malo olumikizira kumadalira osati pamtundu wa zinthu, komanso malo okhudzana ndi kukhudzana ndi kukhudzana ndi kukhudzana ndi nthawi yolumikizana. Pachifukwa ichi, chofunikira kwambiri polumikiza mabasi ndi: kupukuta kumakhala kolimba.
Table 3-3 Contact kukana kwa 1cm2 graphite ndi 1cm2 zitsulo
Mfundo yofunikira kwambiri ndikuchepetsa kutsekeka kwa ukonde waufupi ndikusunga ukonde wonse waufupi ndikutsitsa pang'ono. Pali zolumikizana zosiyanasiyana mumana amfupi a ng'anjo ya graphitization. Ngati pali kukhudzana pakati pa electrode conductive ndi basi yamkuwa, kukhudzana pakati pa basi yofewa yamkuwa ndi basi ya aluminiyamu, kukhudzana pakati pa basi ya aluminiyamu, etc., kukhudzana kumeneku kudzatulutsa kukana kukhudzana, kukhudza makhalidwe a ukonde wonse waufupi. . Kukana kukhudzana kwa woyendetsa yemwe ali ndi malo olumikizira kumadalira osati pamtundu wa zinthu, komanso malo okhudzana ndi kukhudzana ndi kukhudzana ndi kukhudzana ndi nthawi yolumikizana. Pachifukwa ichi, chofunikira kwambiri polumikiza mabasi ndi: kupukuta kumakhala kolimba.
Table 3-3 Contact kukana kwa 1cm2 graphite ndi 1cm2 zitsulo
| 压力 | 石墨–石墨µΩ | 石墨—铜µΩ | 石墨—铝µΩ |
| 0.2 | 70 | 100 | 6000 |
| 0.5 | 40 | 70 | 2600 |
| 1 | 25 | 50 | 1300 |
| 2 | 14 | 32 | 500 |
| 4 | 7.5 | 16 |
Table 3-4 Contact kukana kwa 1cm2 carbon ndi 1cm2 zitsulo
| 压力 | 炭–炭µΩ | 炭—铜µΩ | 炭—铝µΩ |
| 0.05 | 750 | 2100 | 20000 |
| 0.1 | 520 | 1800 | 16000 |
| 0.2 | 380 | 1400 | 10000 |
| 0.4 | 290 | 850 | 4000 |
| 0.6 | 250 | 600 | 1700
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Nthawi yotumiza: Sep-16-2019