Nichrome hlau, ib qho hlau nickel-chromium alloy (feem ntau yog 60-80% nickel, 10-30% chromium), yog ib yam khoom siv ua haujlwm uas tau txais kev qhuas rau nws qhov kev sib xyaw ua ke ntawm kev ruaj khov kub siab, kev tiv thaiv hluav taws xob tas li, thiab kev tiv thaiv corrosion. Cov yam ntxwv no ua rau nws tseem ceeb heev rau ntau yam lag luam - los ntawm cov khoom siv hauv tsev txhua hnub mus rau cov chaw lag luam uas xav tau ntau - thiab peb cov khoom hlau nichrome tau tsim los muab kev ua haujlwm zoo tshaj plaws hauv txhua qhov kev siv.
1. Cov Khoom Siv Cua Sov: Daim Ntawv Thov Tseem Ceeb
Kev siv hlau nichrome dav tshaj plaws yog nyob rau hauv kev tsim cov khoom siv cua sov, ua tsaug rau nws lub peev xwm los hloov lub zog hluav taws xob mus rau hauv cua sov kom zoo thiab ntseeg tau. Hauv cov khoom siv hauv tsev, nws muab lub zog rau cov kauj cua sov hauv cov tshuab ci mov, cov tshuab ziab plaub hau, cov qhov cub hluav taws xob, thiab cov cua sov hauv qhov chaw. Tsis zoo li lwm yam hlau uas mos lossis oxidize ntawm qhov kub siab, peb cov hlau nichrome tswj tau qhov ruaj khov txawm tias thaum cua sov rau 1,200 ° C, ua kom cov khoom siv khiav tas li rau ntau xyoo. Piv txwv li, cov kauj cua sov hauv peb cov hlau nichrome yog tsim nrog qhov tsis kam tiv taus (feem ntau 1.0-1.5 Ω·mm² / m) kom xa cov cua sov sib xws - tsis muaj qhov kub, tsuas yog sov tas li uas ua rau lub neej ntawm cov khoom siv ntev dua.
Hauv kev lag luam, cov hlau nichrome yog lub hauv paus ntawm cov cua sov kub siab. Nws siv rau hauv cov cub tawg rau kev ua kom hlau kub, cov tshuab yas molding, thiab cov qhov cub kho cua sov, qhov twg nws tiv taus kev kub hnyiab ntev yam tsis muaj kev puas tsuaj. Peb cov hlau nichrome hnyav (0.5-5 hli txoj kab uas hla) yog tsim rau cov haujlwm no, nrog kev tiv thaiv oxidation zoo dua kom tiv taus kev ua haujlwm tas mus li hauv cov chaw ua haujlwm hnyav.
2. Cov Khoom Siv Hauv Chav Kuaj Mob & Kev Tshawb Fawb
Hlau Nichrome yog ib qho tseem ceeb hauv cov chaw kuaj mob, qhov twg qhov cua sov raug yog qhov tseem ceeb. Nws siv rau hauv Bunsen burners (ua lub cua sov rau cov hluav taws xob sib txawv), cua sov mantles rau lub raj mis cua sov, thiab cov chav tswj qhov kub. Peb cov hlau nichrome zoo (0.1-0.3 hli txoj kab uas hla) zoo tshaj plaws ntawm no - nws qhov ductility siab tso cai rau nws kom raug puab ua cov kauj me me, thaum nws qhov ruaj khov resistivity ua kom ntseeg tau tias qhov kub tswj tau raug, qhov yuav tsum muaj rau kev sim rhiab heev.
3. Cov Cheebtsam Tiv Thaiv & Cov Ntawv Thov Tshwj Xeeb
Tshaj li qhov cua sov,hlau nichromeQhov kev tiv thaiv hluav taws xob sib xws ua rau nws zoo tagnrho rau cov khoom siv resistor hauv cov khoom siv hluav taws xob, xws li (cov resistors ruaj khov) thiab potentiometers. Nws kuj pom tias siv tau hauv cov teb tshwj xeeb: hauv 3D luam ntawv, nws muab lub zog rau cov txaj cua sov rau kev nplaum filament; hauv aerospace, nws siv rau cov khoom cua sov me me hauv avionics; thiab hauv cov haujlwm hobby (xws li cov qauv tsheb ciav hlau lossis DIY cua sov), nws yooj yim siv thiab pheej yig ua rau nws nyiam.
Peb cov khoom siv hlau nichrome muaj ntau yam qib (xws li NiCr 80/20 thiab NiCr 60/15) thiab cov lus qhia tshwj xeeb, los ntawm cov hlau zoo heev rau cov ntawv thov me me mus rau cov hlau tuab rau kev siv hauv kev lag luam hnyav. Txhua lub yob raug kuaj xyuas zoo nruj - suav nrog kev txheeb xyuas cov khoom sib xyaw thiab kev kuaj xyuas resistivity - kom ntseeg tau tias nws ua tau raws li cov qauv kev lag luam. Txawm hais tias koj xav tau lub tshuab cua sov txhim khu kev qha rau cov khoom siv hauv tsev lossis kev daws teeb meem ruaj khov rau cov cub tawg kev lag luam, peb cov hlau nichrome muab kev ua tau zoo, lub neej ntev, thiab kev sib xws uas koj xav tau.
Lub sijhawm tshaj tawm: Cuaj hlis-26-2025
