Round Copper Based NicrAlloy 180degree Chav Kawm Insulated Enameled Copper Hlau

1.Material General Description

1)

Manganinyog ib qho alloy ntawm feem ntau 84% tooj liab, 12% manganese, thiab 4% npib tsib xee.

Manganin hlau thiab ntawv ci yog siv rau hauv kev tsim cov resistors, tshwj xeeb tshaj yog ammeter shunt, vim nws zoo li xoom kub coefficient ntawm tsis kam thiab lub sij hawm ntev stability. Ob peb Manganin resistors tau ua raws li tus qauv kev cai lij choj rau ohm hauv Tebchaws Meskas los ntawm 1901 txog 1990. Manganin hlau kuj tseem siv los ua cov khoom siv hluav taws xob hauv cov tshuab cryogenic, txo cov cua sov hloov ntawm cov ntsiab lus uas xav tau kev sib txuas hluav taws xob.

Manganin kuj tseem siv tau rau hauv cov ntsuas rau kev tshawb fawb txog kev kub ntxhov siab tsis muaj zog (xws li cov khoom tsim los ntawm kev tawg ntawm cov khoom tawg) vim tias nws muaj qhov tsis tshua muaj siab tab sis siab hydrostatic siab rhiab heev.

2)

Constantanyog tooj liab-nickel alloy tseem hu uaEureka, Ua ntej, thiabFerry. Nws feem ntau muaj 55% tooj liab thiab 45% npib tsib xee. Nws lub ntsiab feature yog nws resistivity, uas yog tas li nyob rau hauv ib tug ntau yam ntawm kub. Lwm cov alloys uas zoo sib xws tsis tshua muaj kub coefficients paub, xws li manganin (Cu₈₆Mn₁₂Ni₂).

Rau kev ntsuas ntawm cov kab mob loj heev, 5% (50 000 microstrian) lossis siab dua, annealed constantan (P alloy) yog cov khoom siv kab sib chaws feem ntau xaiv. Constantan nyob rau hauv daim ntawv no yog ductile heev; thiab, hauv qhov ntsuas qhov ntev ntawm 0.125 ntiv tes (3.2 hli) thiab ntev dua, tuaj yeem raug strained rau> 20%. Nws yuav tsum tau borne nyob rau hauv lub siab hais tias, txawm li cas los xij, nyob rau hauv siab cyclic hom P alloy yuav nthuav tawm qee qhov kev hloov pauv mus tas li nrog txhua lub voj voog, thiab ua rau muaj kev sib raug zoo xoom hloov hauv qhov ntsuas ntsuas. Vim hais tias ntawm tus yam ntxwv no, thiab lub siab nyiam ua ntej daim phiaj tsis ua hauj lwm nrog rov straining, P alloy tsis nquag pom zoo rau kev siv cyclic strain. P alloy muaj nyob nrog STC tus lej ntawm 08 thiab 40 rau siv rau cov hlau thiab yas, feem.

2. Enamelled Wire Taw qhia thiab kev siv

Txawm hais tias tau piav qhia tias "enameled", enameled hlau tsis yog, qhov tseeb, coated nrog ib txheej ntawm cov xim enamel lossis nrog vitreous enamel ua los ntawm fused iav hmoov. Niaj hnub nimno hlau nplaum hlau feem ntau siv ib mus rau plaub txheej (nyob rau hauv cov ntaub ntawv ntawm quad-film hom hlau) ntawm polymer zaj duab xis rwb thaiv tsev, feem ntau ntawm ob sib txawv compositions, muab ib tug tawv, nruam insulating txheej. Magnet hlau insulating films siv (nyob rau hauv kev txiav txim ntawm qhov kub ntau ntau) polyvinyl formal (Formar), polyurethane, polyimide, polyamide, polyster, polyester-polyimide, polyamide-polyimide (los yog amide-imide), thiab polyimide. Polyimide insulated hlau nplaum hlau muaj peev xwm ua haujlwm ntawm txog 250 ° C. Cov rwb thaiv tsev ntawm cov hlau nplaum tuab tuab los yog cov hlau nplaum hlau feem ntau yog augmented los ntawm kev qhwv nws nrog lub siab kub polyimide los yog fiberglass daim kab xev, thiab ua tiav windings feem ntau nqus impregnated nrog ib tug insulating kua roj vanish los txhim kho rwb thaiv tsev lub zog thiab lub sij hawm ntev kev cia siab ntawm lub winding.

Kev txhawb nqa tus kheej yog qhov txhab nrog hlau coated nrog tsawg kawg yog ob txheej, sab nraud yog cov thermoplastic uas khi cov lem ua ke thaum rhuab.

Lwm hom kev rwb thaiv tsev xws li fiberglass yarn nrog cov kua roj vanish, aramid ntawv, kraft ntawv, mica, thiab polyester zaj duab xis kuj tau dav siv thoob ntiaj teb rau ntau yam kev siv xws li transformers thiab reactors. Nyob rau hauv lub suab sector, ib tug hlau ntawm nyiaj siv, thiab ntau yam insulators, xws li paj rwb (qee zaum permeated nrog ib co coagulating tus neeg saib xyuas / thickener, xws li beeswax) thiab polytetrafluoroethylene (PTFE) tuaj yeem pom. Cov ntaub ntawv rwb thaiv tsev laus suav nrog paj rwb, ntawv, lossis lo lo ntxhuav, tab sis cov no tsuas yog siv tau rau cov ntawv thov kub (txog 105 ° C).

Rau kev yooj yim ntawm kev tsim khoom, qee qhov qis-kub-qib hlau nplaum hlau muaj rwb thaiv tsev uas tuaj yeem raug tshem tawm los ntawm tshav kub ntawm soldering. Qhov no txhais tau hais tias kev sib txuas hluav taws xob ntawm qhov kawg tuaj yeem ua tau yam tsis muaj stripping tawm ntawm lub rwb thaiv tsev ua ntej.

3.Chemical Composition thiab Main Property of Cu-Ni Low Resistance Alloy