I-Nicr esekwe kwiCopper RoundI-alloy 180I-degree Class Insulated Copper Wire ene-Enameled

1. Inkcazelo Jikelele yezinto eziphathekayo

1)

IManganinyi-alloy eqhelekileyo ene-84% yobhedu, i-12% ye-manganese, kunye ne-4% ye-nickel.

Ucingo lweManganin kunye nefoyile zisetyenziswa ekwenzeni iiresistor, ngokukodwa i-ammeter shunt, ngenxa yokuba azikho bushushu bufanelekileyo bokumelana nokuqina kwexesha elide. Iiresistor ezininzi zeManganin zazisebenza njengomgangatho osemthethweni we-ohm eMelika ukususela ngo-1901 ukuya ku-1990. Ucingo lweManganin lukwasetyenziswa njengomqhubi wombane kwiinkqubo ze-cryogenic, nto leyo enciphisa ukudluliselwa kobushushu phakathi kwamanqaku afuna uqhagamshelo lombane.

IManganin ikwasetyenziswa kwiigeyiji kwizifundo zamaza oxinzelelo oluphezulu (njengalawo aveliswa kukuqhuma kweziqhushumbisi) kuba inovakalelo oluphantsi loxinzelelo kodwa inovakalelo oluphezulu loxinzelelo lwe-hydrostatic.

2)

uConstantanyi-alloy ye-copper-nickel eyaziwa ngokuba yiI-Eureka, PhambilikunyeIsikhephe. Ngokwesiqhelo iqulathe i-55% yobhedu kunye ne-45% ye-nickel. Uphawu lwayo oluphambili kukumelana kwayo, okuhlala kuhleli kubushushu obahlukeneyo. Ezinye ii-alloys ezine-coefficients ezifanayo zobushushu obuphantsi ziyaziwa, njenge-manganin (Cu).₈₆Mn₁₂Ni₂).

Ukuze kulinganiswe iintlobo ezinkulu kakhulu, i-5% (50 000 microstrian) okanye ngaphezulu, i-annealed constantan (i-P alloy) zizinto zegridi ezikhethwa rhoqo. I-Constantan kule fomu ithambile kakhulu; kwaye, kubude be-gauge obuyi-0.125 intshi (3.2 mm) nangaphezulu, inokuxinana ukuya kuthi ga kwi->20%. Nangona kunjalo, kufuneka kukhunjulwe ukuba phantsi kweentlobo eziphezulu ze-cyclic alloy i-P alloy iya kubonisa utshintsho oluthile oluhlala luhleli kumjikelo ngamnye, kwaye ibangele utshintsho oluhambelanayo lwe-zero kwi-strain gauge. Ngenxa yolu phawu, kunye nokuthambekela kokusilela kwegridi ngaphambi kwexesha ngokuxinana okuphindaphindiweyo, i-P alloy ayikhuthazwa rhoqo kwizicelo ze-cyclic strain. I-P alloy iyafumaneka ngeenombolo ze-STC ezingama-08 nama-40 ukuze zisetyenziswe kwisinyithi kunye neplastiki, ngokwahlukeneyo.

2. Intshayelelo kunye nezicelo ze-Enamelled Wire

Nangona ichazwa njenge "enameled", i-enameled wire, eneneni, ayigqunywanga ngumaleko wepeyinti ye-enamel okanye nge-vitreous enamel eyenziwe ngomgubo weglasi oxutyiweyo. I-magnet wire yanamhlanje idla ngokusebenzisa umaleko omnye ukuya kowesine (kwimeko ye-quad-film type wire) ye-polymer film insulation, edla ngokuba yimilo emibini eyahlukeneyo, ukubonelela ngomaleko oqinileyo noqhubekayo wokukhusela. Iifilimu zokukhusela i-magnet wire zisebenzisa (ngolandelelwano lobushushu obukhulayo) i-polyvinyl formal (Formar), i-polyurethane, i-polyimide, i-polyamide, i-polyamide, i-polyster, i-polyester-polyimide, i-polyamide-polyimide (okanye i-amide-imide), kunye ne-polyimide. I-polyimide insulated magnet wire iyakwazi ukusebenza ukuya kuthi ga kwi-250 °C. Ukukhusela i-square okanye i-rectangular magnet wire etyebileyo idla ngokwandiswa ngokuyisonga nge-polyimide okanye i-fiberglass tape enobushushu obuphezulu, kwaye ii-windings ezigqityiweyo zihlala zifakwe i-vacuum nge-insulation varnish ukuphucula amandla okukhusela kunye nokuthembeka kwexesha elide kwe-winding.

Iikhoyili ezizixhasayo zibotshelelwa ngocingo olugqunywe ubuncinane ngeengqimba ezimbini, elona lingaphandle yi-thermoplastic edibanisa iijika kunye xa zifudunyezwa.

Ezinye iintlobo zokwambathisa ezifana nomsonto we-fiberglass onevarnish, iphepha le-aramid, iphepha le-kraft, i-mica, kunye nefilimu ye-polyester nazo zisetyenziswa kakhulu kwihlabathi liphela kwizicelo ezahlukeneyo ezifana nee-transformers kunye nee-reactors. Kwicandelo le-audio, ucingo lwesilivere oluyilwe, kunye nezinye izinto zokwambathisa, ezifana nomqhaphu (ngamanye amaxesha ozaliswa yi-agent/thickener ethile, efana ne-beeswax) kunye ne-polytetrafluoroethylene (PTFE) zinokufunyanwa. Izinto zokwambathisa ezindala ziquka umqhaphu, iphepha, okanye isilika, kodwa ezi ziluncedo kuphela kwizicelo zobushushu obuphantsi (ukuya kuthi ga kwi-105°C).

Ukuze kube lula ukwenziwa, ucingo oluthile lwemagnethi olukumgangatho ophantsi lune-insulation enokususwa bubushushu be-soldering. Oku kuthetha ukuba uqhagamshelo lombane eziphelweni lunokwenziwa ngaphandle kokususa i-insulation kuqala.

3. Ukwakhiwa kweekhemikhali kunye nePropathi ephambili yeCu-Ni Low Resistance Alloy