Hauv cov khoom siv hluav taws xob, tsim tawm tawm lub luag haujlwm tseem ceeb hauv kev tswj hwm qhov khiav ntawm tam sim no. Lawv yog cov khoom tseem ceeb hauv cov khoom siv xws li cov hluav taws xob yooj yim los ua tshuab. Cov ntaub ntawv siv los tsim cov khoom siv ua rau lawv cov kev ua tau zoo, ruaj khov thiab ua haujlwm. Ntawm lawv, hlau-chromium-aluminium alloys, npib tsib xee-chromium alloys, thiab tooj-nickel alloys yog qhov txaus siab vim lawv cov khoom ntiag tug.
Vim li cas cov alloys ua lub luag haujlwm tseem ceeb hauv kev tsim khoom lag luam
Alloys muaj ob lossis ntau cov ntsiab lus, tsawg kawg ib qho ntawm cov hlau. Lawv tau tsim kho kom txhim kho cov khoom tshwj xeeb xws li lub zog, corrosion tsis kam thiab lub zog ruaj khov. Nyob rau hauv resistor cov ntawv thov, kev xaiv ntawm Alloy cuam tshuam rau cov coefficient kub, kev ruaj ntseg thiab tag nrho kev ua tau zoo ntawm lub resistor.
Dab tsi yog cov khoom tseem ceeb ntawm alloys siv hauv resistors
(1) Kuj: Cov haujlwm tseem ceeb ntawm kev tiv thaiv yog los muab kev tiv thaiv kom ntws ntawm tam sim no. Qhov tsis kam ntawm lub alloy yog qhov tseem ceeb ntawm kev txiav txim siab nws cov hauj lwm zoo hauv kev ua txoj haujlwm no. 2.
(2) Kub Coefficient: Cov cuab yeej no qhia tau ntau npaum li cas ntawm cov ntaub ntawv sib txawv nrog qhov kub. Cov neeg tsim nyog yuav tsum muaj qhov kub tsawg vibeigricient ntawm kev tiv thaiv kom ntseeg tau ruaj khov ntau yam ntawm ntau qhov kub.
(3) Corrosion Kuj: Cov neeg tsim tawm feem ntau raug hnyav ib puag ncig. Alloys uas tiv thaiv oxidation thiab corrosion yog qhov tseem ceeb los tswj lub neej thiab kev ntseeg tau ntawm lub resistor.
(4) Lub zog kho tshuab: tsim tawm yuav tsum muaj kev ntxhov siab thiab cua sov thermal. Alloys nrog cov kev siv tshuab zog muaj zog tuaj yeem tiv thaiv cov mob no yam tsis muaj kev ua tsis txaus ntshai.
(5) thermal stability: lub peev xwm ntawm ib qho alloy los tswj nws cov peev xwm ntawm kev nce siab kub yog qhov tseem ceeb, tshwj xeeb tshaj yog nyob rau hauv cov kev siv hluav taws xob siab.
Hlau Chromium Aluminoy Alloy - Kev Sau Ntawv thiab Khoom:
Hlau-liromium-Txhuas Alloys(Fecral) paub txog lawv cov oxidation zoo ua hauj lwm thiab high-kub ruaj khov. Feem ntau muaj hlau, chromium thiab txhuas, cov alloys tsis txwv tseem ceeb ntawm qhov kub thiab txias txog 1400 ° C (2550 ° F).
Cov ntawv thov nyob rau hauv resistors:
Hlau-chromium-aluminium alloys tau dav siv nyob rau hauv high-kub resistors, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov hauv qab no:
- Cov cua sov hais: Hlau chromium aluminium alloys muaj cov cua sov siv nyob rau hauv muaj cov cua sov thiab ncu vim lawv muaj peev xwm tswj cov qauv kev ncaj ncees thaum muaj kev ntseeg siab.
- Lub zog tiv thaiv: Cov alloys tseem siv nyob rau hauv lub zog tiv thaiv uas yuav tsum muaj siab thermal stability thiab oxidation tsis kam.
- Cov ntawv thov automotive: hauv allocal acctronics, fecral alloys tau siv rau hauv cov resistors uas ua haujlwm nyob rau hauv ib puag ncig kub, xws li ua pa tawm.
Nickel-chromium alloys - muaj pes tsawg leeg thiab cov khoom:
Nickel-chromium (NICR) alloys yog lwm qhov kev xaiv uas nrov rau Realer cov ntawv thov. Cov alloys feem ntau yog suav nrog npib tsib xee thiab chromium, feem pua ntawm uas nyob ntawm cov yam uas xav tau.Nicr alloysyog paub rau lawv cov kev tiv thaiv zoo heev, kev ua tau kub thiab huab cua sov thiab corrosion tsis kam.
Nichrome alloys muaj feem ntau siv:
- Film resistors: Cov yaum tau siv hauv kev thov uas precision yog qhov tseem ceeb thiab qhov twg NICR ALLYOY muab cov kev ruaj khov tsim nyog thiab qhov kub tsawg.
- Wirewound Distors: Hauv Wirewound Distors, Nichrome Hlau feem ntau siv vim tias nws lub siab tsis kam thiab muaj peev xwm tiv taus withstand thermal cycling.
- Cov ntawv thov kub siab: zoo ib yam li ferrocegium-aluminium alloys yog haum rau cov kev lag luam kub thiab siv cov ntawv thov aerospace.
Tooj liab-Nickel alloys - muaj pes tsawg leeg thiab cov khoom
Tooj liab-tsibckel (cuni) alloys paub txog lawv cov hluav taws xob zoo thiab corrosion tsis kam. Cov alloys feem ntau muaj tooj liab thiab npib tsib xee, nrog cov khoom tshwj xeeb ua tiav los ntawm kev sib txawv cov ntsiab lus tsib xee. Cuni alloys muaj txiaj ntsig tshwj xeeb tshaj yog muaj nuj nqis rau lawv lub peev xwm los tswj kev ua tau zoo hauv marine thiab lwm qhov chaw nruab nrab.
Tooj liab-nickel alloys tau siv nyob rau hauv ntau lub resistor cov ntawv thov, suav nrog:
- precision resistors: vim lawv txoj kev ua tau zoo thiab ruaj khov,Cuni alloysFeem ntau siv rau precision resistors hauv kev ntsuas thiab tswj cov ntawv thov.
- Marine cov ntawv thov: Cov xeb tsis kam ntawm cuni alloys ua rau lawv tsim nyog rau kev tsim tawm hauv cov av marine ib puag ncig uas tau ua rau dej ntsev tuaj yeem tsim kev puas tsuaj.
- Cov ntawv thov kub tsawg: Tooj-Nickel alloys ua tau zoo nyob rau hauv cryogenic ib puag ncig, ua rau lawv zoo tshaj rau cov ntawv thov kub tsawg.
Fecrome, Nichrome, thiab tooj-nickel alloys txhua tus muaj cov khoom tshwj xeeb uas ua rau lawv haum rau ntau yam kev siv.
- Hlau-chromium-aluminium alloys ua tau zoo nyob rau hauv cov kev kub-ib puag ncig thiab muaj kev haum zoo rau cov khoom cua kub thiab lub zog tiv thaiv.
- Nickel-chromium alloys muaj kev ruaj khov zoo nkauj thiab yog tsim nyog rau zaj duab xis thiab wirewonon resistors.
- Tooj liab-nickel alloys paub txog lawv lub siab zoo thiab corrosion tsis kam thiab yog cov haum rau cov khoom siv ua kom zoo thiab cov kev siv marraph.
Lub Sijhawm Post: Sep-26-2024