Monga ma relay ndi zigawo zowongolera zomwe zimagwiritsidwa ntchito kwambiri pazowongolera zomwe sizili zokhazikika, ndikofunikira kumvetsetsazida zolumikizirana zopatsiranandi chiyembekezo cha moyo.Kusankha ma relay okhala ndi zida zoyenera zolumikizirana komanso kukhala ndi moyo wautali kumatha kuchepetsa mtengo wokonza ndikuchepetsa kulephera kwa zida.
Zolinga zonse ndi maulumikizidwe amagetsi nthawi zambiri amakhala ndi moyo wamagetsi osachepera 100,000, pomwe kutalika kwa moyo wamakina kumatha kukhala 100,000, 1,000,000 kapena 2.5 biliyoni.Chifukwa chomwe moyo wamagetsi ndi wotsika kwambiri poyerekeza ndi moyo wamakina ndikuti moyo wolumikizana umadalira kugwiritsa ntchito.Mavoti amagetsi amagwiranso ntchito kwa omwe amasintha katundu wawo wovoteledwa, ndipo gulu la zolumikizira zikasintha katundu wocheperako, nthawi yolumikizana imatha kukhala yayitali kwambiri.Mwachitsanzo, 240A, 80V AC, 25% PF olumikizana nawo amatha kusintha katundu wa 5A pakuchita ntchito zopitilira 100,000.Komabe, ngati ma contact awa agwiritsidwa ntchito posintha (monga: 120A, 120VAC katundu wotsutsa), moyo ukhoza kupitirira miliyoni imodzi.Mphamvu yamagetsi yamagetsi imaganiziranso kuwonongeka kwa ma arc kwa olumikizana, ndipo pogwiritsa ntchito kuponderezana koyenera kwa arc, moyo wolumikizana ukhoza kukulitsidwa.
Kukhudzana moyo umatha pamene kukhudzana n'kudziphatika kapena kuwotcherera, kapena pamene mmodzi kapena onse kulankhula kutaya monyanyira zakuthupi ndi wabwino kukhudzana magetsi sangathe angapezeke chifukwa cha zochulukirachulukira kutengerapo zinthu pa nthawi mosalekeza kusintha ntchito ndi imfa zakuthupi chifukwa spattering.
Zolumikizana ndi ma relay zimapezeka mumitundu yambiri yazitsulo ndi ma aloyi, makulidwe ndi masitayilo, ndipo kusankha kolumikizana kuyenera kuganizira zakuthupi, mawonedwe ndi masitayilo kuti akwaniritse zofunikira za pulogalamu inayake ndendende momwe zingathere.Kulephera kutero kungayambitse vuto lolumikizana kapena kulephera kulumikizana msanga.
Kutengera kugwiritsa ntchito, kulumikizana kumatha kupangidwa ndi aloyi monga palladium, platinamu, golide, siliva, siliva-nickel, ndi tungsten.Makamaka silver alloy compounds, silver cadmium oxide (AgCdOndi silver tin oxide (AgSnO, ndi silver indium tin oxide (AgInSnO) amagwiritsidwa ntchito kwambiri pazifukwa wamba komanso zolumikizirana zamagetsi pakusintha kwapakatikati mpaka pakali pano.
Silver Cadmium Oxide (AgCdO) yatchuka kwambiri chifukwa cha kukokoloka kwake komanso kukana kwa solder komanso kutsika kwambiri kwamagetsi ndi matenthedwe. ndi kukana kukhudzana kwapafupi ndi kwa siliva (pogwiritsa ntchito kukakamiza kwapamwamba pang'ono), koma chifukwa cha kukana kwachilengedwe kwa solder ndi arc quenching ya cadmium oxide, imakhala ndi kukokoloka kwabwino komanso kukana kuwotcherera.
Zipangizo zolumikizirana za AgCdO zili ndi 10 mpaka 15% cadmium oxide, ndipo kukana kapena kumamatira kumayenda bwino ndi kuchuluka kwa cadmium oxide;komabe, chifukwa cha kuchepetsedwa kwa ductility, madutsidwe amagetsi amachepetsa, ndipo mawonekedwe ozizirira amachepa.
Silver cadmium oxide contacts ali ndi post-oxidation kapena pre-oxidation ya mitundu iwiri, pre-oxidation ya zinthu pakupanga malo olumikizirana ndi oxidation mkati, ndipo kuposa makutidwe ndi okosijeni a post-oxidation amakhala ndi kugawa kofanana kwa cadmium. oxide, yotsirizirayi imapangitsa kuti cadmium oxide ikhale pafupi ndi malo okhudzana.Kulumikizana kwa post-oxidized kungayambitse zovuta zowonongeka ngati mawonekedwe a kukhudzana ayenera kusinthidwa kwambiri pambuyo pa okosijeni, mwachitsanzo, maulendo awiri, osuntha, ma rivets amtundu wa C.
Silver Indium Tin Oxide (AgInSnO) komanso Silver Tin Oxide (AgSnO) akhala njira zabwino zosinthira ma AgCdO contacts, ndipo kugwiritsa ntchito cadmium polumikizana ndi mabatire ndikoletsedwa kumadera ambiri padziko lapansi.Chifukwa chake, ma tin oxide contacts (12%), omwe ali olimba 15% kuposa AgCdO, ndi chisankho chabwino.Kuphatikiza apo, zolumikizira za silver-indium-tin oxide ndizoyenera kunyamula katundu wambiri, mwachitsanzo, nyali za tungsten, pomwe mphamvu yamagetsi imakhala yotsika.Ngakhale zimagonjetsedwa ndi soldering, ma AgInSn ndi AgSn ali ndi kukana kwa voliyumu yapamwamba (kutsika kotsika) kusiyana ndi ma Ag ndi AgCdO.Chifukwa cha kukana kwawo solder, kukhudzana pamwamba ndi otchuka kwambiri mu makampani magalimoto, kumene 12VDC inductive katundu amakonda kuchititsa kusamutsa zinthu mu ntchito izi.
Nthawi yotumiza: Apr-01-2024