Nichrome tau tsim nyob rau xyoo 1905 los ntawm Albert Marsh, uas ua ke nickel (80%) thiab chromium (20%). Niaj hnub no muaj txog kaum kev hloov kho ntawm cov alloys ntawm ntau qib. Aluminium, manganese, hlau, silicon, titanium, molybdenum, thiab lwm yam yog ntxiv rau ntxiv alloying impurities. Vim nws cov khoom zoo, cov hlau no tau siv dav rau kev tsim hluav taws xob engineering.
Basic qualities of nichrome
Nichrome sib txawv:
- siab kub ua haujlwm. Thaum qhov kub thiab txias, nws cov khoom siv kho tshuab tsis hloov pauv;
- plasticity, uas tso cai rau kev tsim cov nichrome kauv, xov hlau, tapes, xov los ntawm cov hlau;
- yuav yooj yim. Cov khoom ua los ntawm nichrome yog zoo welded, stamped;
- siab corrosion kuj nyob rau hauv ntau qhov chaw.
- nichrome tiv thaiv siab.
Basic nta
- Densityyog 8200-8500 kg/m3.
- Nichrome melting point - 1400 C.
- Ua haujlwm kub siab tshaj plaws - 1100 ° C.
- Strength - 650-700 MPa.
- Nichrome resistivity 1.05-1.4 Ohm.
Nichrome hlau cim
Nichrome hlau yog cov khoom siv zoo heev rau ntau yam hluav taws xob cua sov, uas yog siv nyob rau hauv yuav luag txhua qhov kev lag luam. Yuav luag txhua cov khoom siv cua sov hauv tsev muaj cov khoom ua los ntawm nichrome.
Tsab ntawv xaim cim:
- "H" - feem ntau yog siv rau hauv cov khoom cua sov.
- "C" - siv hauv cov ntsiab lus tiv thaiv.
- "TEN" - npaj rau tubular hluav taws xob cua sov.
Raws li cov qauv hauv tsev, muaj ntau lub npe tseem ceeb:
- ob kab Х20Н80. Cov muaj pes tsawg leeg ntawm cov hlau muaj xws li: npib tsib xee - 74%, chromium - 23%, thiab 1% ntawm txhua tus hlau, silicon thiab manganese.
- Triple Х15Н60. Cov alloy muaj 60% nickel thiab 15% chromium. Cov khoom thib peb yog hlau (25%). Lub saturation ntawm cov hlau nrog hlau ua rau nws muaj peev xwm txo tau tus nqi ntawm nichrome, tus nqi yog heev siab, thiab nyob rau tib lub sij hawm tswj nws cov cua sov. Tsis tas li ntawd, nws txoj kev ua haujlwm tau zoo tuaj.
- Tus nqi pheej yig tshaj ntawm nichrome yog Х25Н20. Nws yog hlau-nplua nuj alloy nyob rau hauv uas cov neeg kho tshuab cov khoom yog tswj, tab sis qhov kev pab cuam kub yog txwv rau 900 ° C.
Siv nichrome
Ua tsaug rau nws qhov zoo thiabCov yam ntxwv tshwj xeeb ntawm cov khoom siv nichrome tuaj yeem siv tau qhov kev ntseeg tau, lub zog, tsis kam mus rau cov tshuaj lom neeg thiab qhov kub thiab txias heev.
Nichrome coils thiab xov hlau yog qhov tseem ceeb ntawm yuav luag txhua yam khoom siv cua sov. Nichrome muaj nyob rau hauv toasters, bakeries, heaters, cubs. Cov hlau kuj tseem pom siv hauv cov resistors thiab rheostats ua haujlwm ntawm qhov kub thiab txias. Muaj nichrome nyob rau hauv hluav taws xob teeb thiab soldering hlau. Nichrome coils yog kub-resistant thiab tiv taus heev, ua rau lawv haum rau siv nyob rau hauv high-temperature drying thiab firing ncu.
Nrhiav siv thiab khawb nichrome. Nws yog yaj, thiab cov khoom siv dua. Ib qho hlau ntawm npib tsib xee thiab chromium yog siv hauv cov chaw kuaj tshuaj. Qhov no muaj pes tsawg leeg tsis hnov mob nrog feem ntau alkalis thiab acids. Deformed nichrome cua sov coils yog siv nyob rau hauv hluav taws xob luam yeeb.
Piv rau cov hlau yav dhau los siv rau lub hom phiaj no, cov khoom siv nichrome muaj kev nyab xeeb dua, tsis txhob tawg, tsis xeb, tsis muaj qhov chaw melted.
Lub ntsiab lus melting ntawm nichrome yog 1400 ° C, yog li thaum ua noj, tsis muaj ntxhiab tsw thiab fumes.
Engineers tseem tab tom tshawb nrhiav cov khoom tshwj xeeb ntawm cov khoom no, txuas ntxiv nws qhov kev nthuav dav.
Hauv tsev, nichrome hlau yog siv los ua cov khoom siv hauv tsev, jigsaws thiab cutters, xws li lub tshuab ua npuas ncaujlos yog ntoo, soldering hlau, ntoo burner, vuam tshuab, tsev tso cua sov, thiab lwm yam.
Cov xaim nrov tshaj plaws yog X20H80 thiab X15H60.
Kuv tuaj yeem yuav nichrome hlau nyob qhov twg
Cov khoom no yog muag hauv cov yob (coils, coils) lossis hauv daim kab xev. Txoj kab uas hla ntawm nichrome hlau tuaj yeem ua tau nyob rau hauv daim ntawv ntawm oval, lub voj voog, square, thiab ib qho trapezoid, txoj kab uas hla ntawm 0.1 txog 1 hli.
Kuv tuaj yeem tau txais lossis yuav cov khoom nichrome nyob qhov twg? Peb xav kom xav txog qhov kev xaiv ntau tshaj plaws thiab muaj peev xwm ua tau:
- Ua ntej tshaj plaws, koj tuaj yeem tiv tauj lub koom haum uas tsim cov khoom lag luam no thiab xaj khoom. Koj tuaj yeem paub qhov chaw nyob ntawm cov tuam txhab lag luam hauv cov ntaub ntawv tshwj xeeb rau cov khoom thiab cov kev pabcuam, uas muaj nyob hauv yuav luag txhua lub nroog loj thiab cov nroog. Tus neeg teb xov tooj yuav tuaj yeem hais qhia qhov twg yuav yuav, thiab yuav muab tus xov tooj. Tsis tas li ntawd, cov ntaub ntawv hais txog ntau yam ntawm cov khoom zoo li no tuaj yeem pom ntawm cov vev xaib raug cai ntawm cov tuam txhab.
- Koj tuaj yeem yuav cov khoom nichrome hauv cov khw tshwj xeeb, piv txwv li, muag cov khoom siv hauv xov tooj cua, cov khoom siv rau cov neeg ua haujlwm xws li "Skillful Hands", thiab lwm yam.
- Yuav los ntawm cov tib neeg uas muag cov khoom siv hauv xov tooj cua, cov khoom seem thiab lwm yam khoom siv hlau.
- Txhua lub khw muag khoom kho vajtse.
- Ntawm lub khw koj tuaj yeem yuav qee yam khoom qub, piv txwv li, chav kuaj rheostat, thiab noj nichrome.
- Nichrome hlau kuj tuaj yeem pom hauv tsev. Piv txwv li,Nws yog los ntawm nws uas muab kauv ntawm cov nplais hluav taws xob ua.
Yog tias koj xav tau kev txiav txim loj, ces thawj qhov kev xaiv yog qhov tsim nyog tshaj. Yog tias koj xav tau me me ntawm nichrome hlau, hauv qhov no, koj tuaj yeem xav txog tag nrho lwm yam khoom hauv daim ntawv. Thaum yuav khoom, nco ntsoov ua tib zoo saib cov cim.
Nichrome kauv winding
Hnub no, nichrome kauj yog ib qho tseem ceeb ntawm ntau cov khoom siv cua sov. Tom qab txias, nichrome muaj peev xwm khaws tau nws cov yas, kom cov kauv ntawm cov khoom siv tau yooj yim tshem tawm, hloov nws cov duab los yog, yog tias tsim nyog, kho kom haum rau qhov loj me. Kauv winding nyob rau hauv industrial tej yam kev mob yog nqa tawm txiav. Hauv tsev, koj tuaj yeem nqa tawm phau ntawv winding. Cia wb mus saib seb yuav ua li cas.
Yog tias qhov tsis ua tiav ntawm qhov tiav nichrome kauv hauv nws qhov kev ua haujlwm tsis tseem ceeb heev, thaum winding, koj tuaj yeem ua kev suav, yog li hais, "los ntawm qhov muag". Txhawm rau ua qhov no, xaiv tus lej yuav tsum tau ua nyob ntawm qhov cua sov ntawm nichrome hlau, thaum lub sijhawm nrog rau cov kauv rau hauv lub network thiab txo qis lossis nce cov lem. Cov txheej txheem winding no yooj yim heev, tab sis nws tuaj yeem siv sijhawm ntau, thiab ib feem ntawm nichrome yog nkim.
Txhawm rau nce qhov yooj yim thiab raug ntawm kev suav cov cua ntawm cov kauv, koj tuaj yeem siv lub laij lej tshwj xeeb hauv online.
Tau suav cov lej xav tau, koj tuaj yeem pib winding ntawm tus pas nrig. Yog tsis txiav cov hlau, koj yuav tsum ua tib zoo txuas lub nichrome kauv rau qhov voltage. Tom qab ntawd xyuas qhov tseeb ntawm kev suav rau winding lub kauv. Nws yog ib qho tseem ceeb uas yuav tau xav txog tias rau qhov kaw-hom kauv, qhov ntev winding yuav tsum tau nce los ntawm ib feem peb ntawm tus nqi tau los ntawm kev suav.
Txhawm rau kom ntseeg tau qhov kev ncua deb ntawm qhov uas nyob ib sab, koj yuav tsum tau cua tshuab winding rau hauv 2 xov hlau: ib qho yog nichrome, qhov thib ob yog tooj liab lossis txhuas, nrog ib txoj kab uas hla uas sib npaug rau qhov sib txawv ntawm qhov xav tau. Thaum winding tiav, cov hlau txuas yuav tsum tau ua tib zoo raug mob.
Nichrome nqi
Qhov tsuas yog qhov tsis zoo uas nichrome muaj yog tus nqi. Yog li ntawd, ib tug ob-tivthaiv alloy thaum muas ntawm khw muag khoom yog kwv yees li ntawm 1,000 rubles ib kilogram. Tus nqi ntawm nichrome stamps nrog lub ligature yog hais txog 500-600 rubles.
Zaj lus
Thaum xaiv cov khoom los ntawm nichrome, nws yog ib qho tsim nyog yuav tsum coj mus rau hauv tus account cov ntaub ntawv ntawm cov tshuaj muaj pes tsawg leeg ntawm cov khoom txaus siab, nws cov hluav taws xob conductivity thiab kuj, lub cev yam ntxwv ntawm txoj kab uas hla, hla ntu, ntev, thiab lwm yam. tseem yog ib qho tseem ceeb kom txaus siab rau cov ntaub ntawv ntawm kev ua raws cai. Tsis tas li ntawd, koj yuav tsum muaj peev xwm pom qhov txawv ntawm cov hlau los ntawm nws, yog li hais, "cov neeg sib tw". Kev xaiv cov khoom raug yog tus yuam sij rau kev ntseeg tau ntawm hluav taws xob engineering.
