Nicr ma ke keleawe poepoeHuina 180degere Papa Insulated Enameled Copper Wire

1.Material wehewehe nui

1)

ManganinʻO ia ka huila o 84% keleawe, 12% manganese, a me 4% nickel.

Hoʻohana ʻia ka uea Manganin a me ka foil i ka hana ʻana i nā mea pale, ʻo ia hoʻi ka ammeter shunt, no ka mea, ʻaneʻane ʻaneʻane ʻaʻole ka wela wela o ke kūpaʻa a me ke kūpaʻa lōʻihi. Ua lawelawe ʻia kekahi mau pale pale Manganin ma ke ʻano he kānāwai no ka ohm ma ʻAmelika Hui Pū ʻIa mai 1901 a 1990. Hoʻohana pū ʻia ka uea Manganin ma ke ʻano he conductor uila i nā ʻōnaehana cryogenic, e hōʻemi ana i ka hoʻoili wela ma waena o nā wahi e pono ai nā pili uila.

Hoʻohana pū ʻia ʻo Manganin i nā ana no ka noiʻi ʻana i nā hawewe haʻalulu kiʻekiʻe (e like me nā mea i hana ʻia mai ka pahū ʻana o nā mea pahū) no ka mea he haʻahaʻa kona naʻau akā he kiʻekiʻe ka ʻike hydrostatic pressure.

2)

Constantanahe keleawe-nickel alloy i ʻike ʻiaEureka, Holomua, aFerry. ʻO ka maʻamau he 55% keleawe a me 45% nickel. ʻO kāna hiʻohiʻona nui kona resistivity, ka mea mau ma luna o kahi ākea o nā mahana. Ua ʻike ʻia nā ʻāpana ʻē aʻe me nā koena wela haʻahaʻa like, e like me ka manganin (Cu₈₆Mn₁₂Ni₂).

No ke ana ʻana i nā kānana nui loa, 5% (50 000 microstrian) a i ʻole, ʻo ka pauku annealed constantan (P alloy) ka mea koho maʻamau. ʻO Constantan ma kēia ʻano he ductile loa; a, ma nā anana lōʻihi o 0.125 iniha (3.2 mm) a lōʻihi, hiki ke hoʻopaʻa ʻia i>20%. E hoʻomanaʻo naʻe, ma lalo o nā kaʻina cyclic kiʻekiʻe e hōʻike ana ka P alloy i kekahi hoʻololi kūʻokoʻa mau me kēlā me kēia pōʻai, a e hoʻololi i ka neʻe ʻana i ka neʻe ʻana i ka ʻano kānana. Ma muli o kēia hiʻohiʻona, a me ka manaʻo o ka hāʻule ʻana o ka mānoanoa mua me ka hoʻopaʻa pinepine ʻana, ʻaʻole ʻōlelo maʻamau ka P alloy no nā noi cyclic strain. Loaʻa ka P alloy me nā helu STC o 08 a me 40 no ka hoʻohana ʻana i nā metala a me nā plastics, kēlā me kēia.

2. Enamelled Wire Introduction a me nā noi

ʻOiai i wehewehe ʻia he "enameled", ʻaʻole i uhi ʻia ka uea enameled me kahi papa o ka pena enamel a i ʻole me ka enamel vitreous i hana ʻia me ka pauka aniani. Hoʻohana maʻamau ka uea magnet hou i hoʻokahi a i ʻehā mau papa (ma ke ʻano o ka uea ʻano quad-film) o ka polymer film insulation, pinepine o ʻelua mau haku mele, e hāʻawi i kahi papa insulating paʻakikī. Hoʻohana ʻia nā kiʻiʻoniʻoni hoʻokaʻawale uea Magnet (no ka hoʻonui ʻana i ka pae wela) polyvinyl formal (Formar), polyurethane, polyimide, polyamide, polyster, polyester-polyimide, polyamide-polyimide (a i ʻole amide-imide), a me ka polyimide. Hiki ke hana i ka uwea magnet insulated polyimide a hiki i 250 °C. Hoʻonui pinepine ʻia ka insulation o ka uea mānoanoa mānoanoa a i ʻole rectangular ma ke kāʻei ʻana iā ia me kahi polyimide kiʻekiʻe a i ʻole fiberglass tape, a hoʻopau pinepine ʻia nā windings i hoʻopiha ʻia me kahi varnish insulating e hoʻomaikaʻi i ka ikaika insulation a me ka hilinaʻi lōʻihi o ka wili.

Hoʻopili ʻia nā ʻōwili kākoʻo ponoʻī me ka uwea i uhi ʻia me ʻelua mau papa, ʻo ka ʻaoʻao loa he thermoplastic e hoʻopaʻa i nā huli i ka wā i wela ai.

ʻO nā ʻano insulation ʻē aʻe e like me ka fiberglass yarn me ka varnish, ka pepa aramid, ka pepa kraft, ka mica, a me ka kiʻiʻoniʻoni polyester e hoʻohana nui ʻia a puni ka honua no nā noi like ʻole e like me nā transformers a me nā reactors. Ma ka ʻāpana leo, hiki ke loaʻa kahi uea i hana ʻia i ke kālā, a me nā insulators ʻē aʻe, e like me ka pulupulu (i hoʻopaʻa ʻia me kekahi ʻano coagulating agent/thickener, e like me ka beeswax) a me ka polytetrafluoroethylene (PTFE). He pulupulu, pepa, a siliki paha na mea insulation kahiko, aka, he mea pono wale no keia no na mea wela haahaa (a hiki i 105°C).

No ka maʻalahi o ka hana ʻana, aia kekahi uea magnet haʻahaʻa haʻahaʻa haʻahaʻa i hiki ke wehe ʻia e ka wela o ka soldering. 'O ia ho'i, hiki ke hana 'ia nā pili uila ma nā wēlau me ka wehe 'ole 'ana i ka insulation ma mua.

3.Chemical Composition a me ka waiwai nui o Cu-Ni Low Resistance Alloy