Nichrome xov thiab nta ntawm nws daim ntawv thov

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Technologies kom tau txais tshwj xeeb hlau alloys hauv qee qhov kev lag luam tau ua tiav los ntawm cov khoom sib xyaw. Cov txheej txheem no tsis nres, tab sis muaj cov lus qhia nyob rau hauv uas cov ntaub ntawv ib txwm muaj ntau dua. Cov no, tshwj xeeb, suav nrog nichrome xov, uas, vim muaj qhov tshwj xeeb ntawm cov txuj ci thiab lub cev zoo, tau pom daim ntawv thov hauv ntau qhov kev lag luam.

Nichrome yog dab tsi?

Qhov no yog cov hlau uas tsim los ntawm ob lub hauv paus hlau, npib tsib xee thiab chromium. Ntxiv mus, cov qub qee zaum ua rau 80% ntawm cov qauv ntawm cov hlau. Tsis tas li ntawd, lwm yam hlau tau nkag mus rau hauv cov khoom sib xyaw ntawm nichrome, suav nrog hlau, txhuas, silicon, thiab lwm yam. Cov yam ntxwv ntawm cov khoom siv muaj xws li hluav taws xob tsis kam, kub tsis kam, thiab ductility. Tus kheej, cov kev ua tau zoo no tsis yog ib yam tshwj xeeb rau cov hlau tsoos, tab sis cov xov nichrome yeej qhov tseeb vim lawv qhov sib xyaw ua ke hauv ib qho qauv. Piv txwv li, tib lub plasticity tsuas yog ua rau nws tuaj yeem tsim cov hlau nplaum fiber ntau, tom qab ntawd siv rau hauv qhov cub, qhov chaw ua haujlwm tuaj yeem yog li 1,200 ˚C hauv qhov kub thiab txias. Tsis tas li ntawd, nyob ntawm lub hom phiaj, cov alloy tuaj yeem ua tau ntxiv alloyed, uas muab cov yam ntxwv tshiab.khoom los yog txhim kho cov yam ntxwv tseem ceeb. Yog li, txhawm rau ua kom muaj peev txheej ua haujlwm, nichrome yog diluted nrog tsawg lub ntiaj teb hlau Cheebtsam.

Nichrome xov yam ntxwv

Muaj ntau qhov kev hloov kho ntawm nichrome fibers uas muaj lawv tus kheej cov yam ntxwv tshwj xeeb, tab sis feem ntau, qhov ntau ntawm qhov tseem ceeb yog nyob rau hauv ib qho nqaim spectrum. Piv txwv li, nyob rau hauv cov nqe lus ntawm ceev, cov alloy yog nyob rau hauv txoj kev ntawm 8200 mus rau 8500 kg / m 3. Kev khiav hauj lwm kub ntawm feem ntau qib yog nyob rau hauv 1000-1200˚C ntau yam. Nyob rau tib lub sijhawm, qhov loj me ntawm cov qauv yog qhov dav heev. Cov xov nichrome nrov tshaj plaws, txoj kab uas hla yog 0.01-0.08 hli. Kuj tseem muaj cov khoom lag luam uas dhau mus dhau qhov qauv no, tab sis cov no yog qhov tshwj xeeb, tsim los rau kev siv cov khoom siv hauv cov chaw tshwj xeeb. Hais txog kev tiv thaiv lub cev, qhov nruab nrab, cov xov tuaj yeem tiv taus 0.65-0.7 GPa, tab sis kom tswj tau qib no, cov lus ceeb toom ntawm cov kws tshaj lij hauv cov ntsiab lus ntawm kev ua haujlwm kev nyab xeeb ntawm cov khoom yuav tsum raug coj mus rau hauv tus account. Piv txwv li, cov xov tsis tuaj yeem tso rau hauv qhov chaw muaj sulfurous, vim tias qhov chaw ib puag ncig muaj kev cuam tshuam rau ob qho tib si ntawm nichrome thiab nws cov qauv.

Nichrome production

Pib nrog, nws tsim nyog hais tias cov xov tsuas yog ib qho ntawm nichrome tso tawm hom. Nws yog qhov ze tshaj plaws hauv kev ua tau zoo rau cov khoom siv hlau. Cov khoom siv yog tsim los ntawm cov txheej txheem ntawm kev kos duab nyob rau hauv siab. Tab sis ua ntej pib lub lag luam, lub workpiece tsis yog rhuab, yog li lub tshuab hu ua txias-draw. Kujetching txoj kev yuav siv tau - lawv qualitatively txhim kho lub cev zog uas ib tug nichrome filament tau txais ntawm cov zis. Kuv tuaj yeem tau txais cov khoom no nyob qhov twg? Feem ntau metallurgical nroj tsuag tau koom nrog hauv kev tsim khoom. Tab sis ntawm no nws yog ib qho tseem ceeb kom nkag siab tias cov txheej txheem tsim cov ntaub ntawv nichrome tsis yog ntau. Qhov no feem ntau yog vim qhov tshwj xeeb ntawm kev siv cov hlau alloy. Txawm li cas los xij, muaj ntau lub lag luam koom nrog hauv cov hlau dov, uas mloog zoo rau hauv lawv cov assortment cov qauv nrov tshaj plaws thiab cov npe ntawm nichrome threads.

Daim ntawv thov nta

Vim lawv cov hluav taws xob ua haujlwm siab, cov fibers no tau siv rau hauv cov khoom siv cua sov. Qhov kev taw qhia ntawm kev siv cov alloy no kuj yog txiav txim los ntawm lub zog thiab kub tsis kam ntawm cov qauv. Nws yog cov xov uas yog siv nyob rau hauv me me round furnace lug. Tsis tas li ntawd, cov khoom siv no tau pom nws qhov chaw hauv thaj chaw ntawm cov tshuaj, qhov twg nws yog siv los ua ib txoj hlua khi. Kev tsim kho kev lag luam kuj tsis muaj qhov tshwj xeeb alloy. Yog li, kom tau txais cov khoom vaj huam sib luag, piv txwv li, los ntawm cov yas ua npuas ncauj lossis phab ntsa ntub dej, txiav nrog nichrome xov raws kab curly yog siv. Tsis zoo li ib txwm jigsaws, cov xov tso cai rau kev txiav kom raug thiab raug nrog tsawg kawg nkaus rau cov khoom ua haujlwm. Txawm li cas los xij, qhov zoo ntawm qhov tshwm sim kuj nyob ntawm cov txheej txheem ntawm kev txiav txiav, nrog rau cov xwm txheej ntawm lub koom haum ntawm cov txheej txheem.

Yuav hloov cov xov nichrome li cas?

Nyob hauv tsevHauv kev ua liaj ua teb, feem ntau muaj teeb meem hloov kho cov cua sov hauv ntau yam khoom siv hluav taws xob. Kev hloov pauv uas tsim nyog tshaj plaws yog suav tias yog kev ua haujlwm kauv, uas tuaj yeem pom hauv cov qhov cub hluav taws xob, cov hlau, qee cov qauv ntawm cov kav dej, thiab lwm yam. Tab sis yog tias koj xav muab kev tiv thaiv los ntawm electrochemical raug, ces koj yuav tsum tig mus rau stainless hlau. Raws li kev xyaum qhia, ib tug nichrome xov feem ntau muaj tib lub zog ntsuas raws li cov khoom siv stainless, tab sis poob rau nws nyob rau hauv cov khoom tiv thaiv nyob rau hauv cov nqe lus ntawm oxidization. Qhov kev daws teeb meem zoo tshaj plaws rau kev hloov pauv no yog txiav cov braids ntawm lub qub hose, uas siv stainless hlau reinforcing fibers.

Zaj lus

Kev siv cov nichrome zoo ua rau muaj txiaj ntsig zoo rau cov neeg siv khoom tshwj xeeb lossis tsim qauv. Cov khoom siv no tsis tuaj yeem sib tw nrog cov analogues ntawm kev hnav tsis kam, tab sis kev tiv thaiv thermal shock thiab hluav taws xob tiv thaiv tau muab tso rau hauv ib kab sib cais twb tau hais txog kev ua haujlwm thiab kev ua haujlwm. Nyob rau tib lub sij hawm, nichrome xov yuav tsum tsis txhob muab suav hais tias yog ib qho kev daws teeb meem rau tib yam khoom siv hluav taws xob. Ib zaug ntxiv, qee lub npe qhia lawv lub zog kom meej meej raws li cov khoom siv txiav, thiab lwm tus raws li tus neeg xyuas pib ruaj khov ntawm cov khoom siv cua sov. Kev muab nyiaj txiaj nrog qee yam khoom muaj ntau nyob ntawm kev qhia txog kev hloov kho ntxiv. Qhov tseeb, hauv nws daim ntawv ntshiab, nichrome yuav luag tsis pom niaj hnub no, txij li tawm tsam keeb kwm yav dhau los ntawm kev txhim kho cov yam ntxwv ntawm lub hom phiaj cov cuab yeej, cov kev xav tau raukhoom siv. Yog li ntawd, yuav tsum tau txhim kho qhov zoo ntawm nichrome xov.