Kev piav qhia
Resistance hlau yog ib qho hluav taws xob cua sov alloy uas ua rau siv cov yam ntxwv ntawm cov khoom siv los tsim cov cua sov. Muaj ob pawg tseem ceeb: ib qho yog ferrochrome aluminium alloy nrog ferrite qauv; Lwm qhov yog npib tsib xee -chromium alloy nrog austenitic qauv. Ob hom electrothermal alloys no muaj cov khoom sib txawv raws li lawv cov qauv sib txawv. Raws li cov khoom siv hluav taws xob cua sov, lawv txhua tus muaj qhov zoo dua, yog li tau txais ntau qhov ntau lawm thiab siv dav hauv ntau lub teb chaws.
Lub tshuab hluav taws xob hluav taws xob tiv thaiv hluav taws xob rau lub tshuab hluav taws xob siv cov khoom zoo fe-Cr-al, ni-Cr-electrothermal alloy hlau raws li cov khoom siv raw, lub tshuab hluav taws xob hluav taws xob hluav taws xob yog tswj los ntawm lub computer, thiab cov xaim hluav taws xob raug mob los ntawm siab -ceev tsis siv neeg winding tshuab. Cov khoom no yog tus cwj pwm los ntawm kev kub siab, kub kub nce, lub neej ntev kev pab cuam, ruaj khov, me me zog sib txawv, txawm lub suab tom qab stretching, ci thiab huv si nto, dav siv nyob rau hauv me me hluav taws xob rauv, muffle rauv, cua sov thiab cua txias khoom, txhua yam ncu, hluav taws xob cua sov raj thiab khoom siv hauv tsev.
Nickel-chromium alloy hlau muaj qhov muaj zog tiv taus, uas txhais tau hais tias lawv tuaj yeem ua kom muaj cua sov zoo thaum tam sim no dhau los ntawm lawv.Cov alloys tuaj yeem tiv taus qhov kub thiab txias yam tsis muaj qhov ua tau zoo degradation thiab tsim nyog rau kev siv cua sov uas yuav tsum tau ua kom kub tsis tu ncua.Nickel-}chromium-raws li tiv thaiv cua sov alloys haum rau lub caij kub txog li 125℃F (225 degree). Ni-Cr kuj ua cua sov alloys yog tus cwj pwm los ntawm cov khoom siv zoo heev hauv lub xeev kub, nrog rau cov khoom zoo oxidation thiab corrosion.Nws muaj kev tiv thaiv -oxidation thiab tiv thaiv-corrosion zog ntawm qhov kub thiab txias, uas tuaj yeem txuas ntxiv lawv lub neej kev pab cuam nyob rau hauv ib puag ncig hnyav.
Lub tshuab hluav taws xob hluav taws xob tiv thaiv hluav taws xob rau hluav taws xob raws li hlau -chromium-aluminium rau qhov kub siab tshaj plaws ntawm 1425℃(2600℃F). Resistant cua sov alloys yog tus cwj pwm los ntawm kev tiv thaiv siab thiab muaj peev xwm tiv taus qhov siab saum npoo.NiCr tsis kam cua sov alloys
Peb lub tuam txhab muag hlau-chromium- txhuas cua sov hlau thiab npib tsib xee-chromium cua sov hlau. Ntau tus neeg siv khoom feem ntau nug txog txoj hauv kev yooj yim los txheeb xyuas seb cov khoom puas yog npib tsib xee -chromium lossis hlau-chromium- txhuas. Yog li, cov ntsiab lus hauv qab no yog txoj hauv kev rau tag nrho peb cov neeg siv khoom tshiab thiab qub:
Txoj kev kom paub qhov txawv
1. So hauv dej ntsev. Cov uas tau xeb yog hlau -chromium- txhuas hlau.
2. FeCral cua sov xaim raug oxidation hnyav heev thiab ua thinner, nws thiaj li tau txais kev puas tsuaj. Nickel hlau muaj lub neej ntev dua.
3. Lub siab- kub lub zog ntawm hlau-chromium- txhuas hlau yog tsawg. Raws li kev khiav hauj lwm kub nce, nws cov plasticity nce, thiab cov khoom yog nquag deformation thiab nyuaj kho. Txawm li cas los xij, nickel-chromium txawv.
Daim ntawv qhia
| Round hlau loj: | 0.10-12 hli (0.00394-0.472 nti) | |||
| Ribbon (pav hlau) thickness thiab dav | 0.023-0.8 hli (0.0009-0.031 nti) 0.038-4 hli (0.0015-0.157 nti) | |||
| Dav: | Dav/thickness ratio max 40, nyob ntawm alloy thiab kam rau ua | |||
| strip: | Thickness 0.10-5 hli (0.00394-0.1968 nti), dav 5-200 hli (0.1968-7.874 nti) | |||
| Lwm qhov ntau thiab tsawg muaj nyob ntawm kev thov. | ||||
Khoom qhia
Daim ntawv thov
* Kev kho cua sov rauv (piv txwv li, carburizing furnaces thiab galvanizing furnaces)
* Melting, dosing thiab tuav lub cub tawg
* Kho hniav rauv
* Diffusion furnaces
* Laboratory furnaces
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