Nickel-chromium (Nichrome) hlau hlau yog dav siv nyob rau hauv cua sov, hluav taws xob, thiab kev lag luam teb vim lawv zoo heev kub-kub kuj thiab ruaj khov hluav taws xob kev ua tau zoo. Ntawm lawv,nqi 7030thiabnco 8020yog ob tus qauv tseem ceeb tshaj plaws, tab sis muaj qhov sib txawv tseem ceeb hauv kev sib xyaw, kev ua tau zoo, thiab cov ntawv thov scenarios. Hauv qab no yog cov ncauj lus kom ntxaws sib piv los pab koj txiav txim siab kev yuav khoom:

Sib piv Dimension	nqi 7030	nco 8020	Lwm yam qauv (piv txwv li, Nicr6040)
Tshuaj muaj pes tsawg leeg	70% Nickel + 30% Chromium	80% Nickel + 20% Chromium	60% Nickel + 40% Chromium
Qhov siab tshaj plaws kev khiav hauj lwm kub	1250 ° C (Lub sijhawm luv luv: 1400 ° C)	1300 ° C (Lub sijhawm luv luv: 1450 ° C)	1150 ° C (Lub sijhawm luv luv: 1350 ° C)
Hluav taws xob tiv taus (20 ° C)	1.18 Ω·mm² / m	1.40 Ω·mm² / m	1.05 Ω·mm² / m
Ductility (Elongation ntawm Break)	≥25%	≥15%	≥20%
Oxidation Resistance	Zoo heev (dense Cr₂O₃ zaj duab xis)	Zoo (thicker oxide zaj duab xis)	Zoo (yuav ua rau tev tawm ntawm qhov kub siab)
Weldability	Superior (yooj yim rau vuam nrog ntau txoj kev)	Nruab nrab (yuav tsum tau tswj qhov ntsuas qhov tseeb)	Nruab nrab
Nqi-zoo	High (sib npaug kev ua tau zoo thiab tus nqi)	Nruab nrab (nickel cov ntsiab lus siab dua nce nqi)	Tsawg (limited daim ntawv thov)
Hom Daim Ntawv Thov Scenarios	Cov khoom siv hauv tsev, muaj cua sov, tsheb cua sov, precision electronics	High-temperature industrial furnaces, tshwj xeeb cov khoom cua sov	Cov khoom siv cua kub qis, cov khoom siv dav dav

Paub meej qhov sib txawv

1. Chemical Composition & Core Performance

Qhov sib txawv tseem ceeb nyob hauv qhov piv ntawm nickel-chromium: Nicr7030 muaj 30% chromium (siab dua Nicr8020's 20%), uas txhim kho nws cov ductility thiab weldability. Nrog rau qhov elongation ntawm kev tawg ntawm ≥25%, Nicr7030 tuaj yeem rub mus rau hauv cov xov hlau ultra-fine (txog 0.01mm) lossis khoov rau hauv cov duab nyuaj, ua rau nws zoo tagnrho rau cov khoom uas xav tau kev ua haujlwm zoo (xws li, automotive seat heating wires, miniaturized electronic sensors).

Hauv qhov sib piv, Nicr8020 cov ntsiab lus ntau dua nickel (80%) txhim kho nws qhov kub thiab txias, tso cai rau nws ua haujlwm tsis tu ncua ntawm 1300 ° C - 50 ° C siab dua Nicr7030. Txawm li cas los xij, qhov no los ntawm tus nqi txo cov ductility (tsuas yog ≥15%), ua rau nws tsis haum rau kev khoov lossis kev tsim cov txheej txheem. Lwm cov qauv zoo li Nicr6040 muaj cov ntsiab lus nickel qis dua, ua rau qis qis dua thiab qhov kub thiab txias, txwv tsis pub lawv siv rau qhov xav tau tsawg.

2. Resistivity & Zog Efficiency

Resistivity ncaj qha cuam tshuam rau cua sov efficiency thiab cov khoom tsim. Nicr8020 muaj kev tiv thaiv ntau dua (1.40 Ω·mm² / m), txhais tau tias nws ua kom muaj cua sov ntau dua rau ib chav tsev ntev nyob rau hauv tib lub sijhawm tam sim no, ua rau nws tsim nyog rau cov khoom siv hluav taws xob siab zog (xws li, kub kub sintering furnaces).

Nicr7030's moderate resistivity (1.18 Ω·mm² / m) ua rau muaj kev sib npaug ntawm cov khoom siv hluav taws xob thiab kev siv hluav taws xob. Rau feem ntau cov kev lag luam thiab cov neeg siv khoom siv (xws li, qhov cub, cua sov pads), nws muab lub zog cua sov txaus thaum txo cov hluav taws xob pov tseg. Tsis tas li ntawd, nws qhov kev tiv thaiv ruaj khov (± 0.5% kam rau ua) ua kom muaj kev ua tau zoo nyob rau lub sijhawm siv ntev, tsis txhob muaj qhov kub thiab txias.

3. Oxidation Resistance & Service Life

Ob leeg Nicr7030 thiab Nicr8020 daim ntawv tiv thaiv Cr₂O₃ cov yeeb yaj kiab ntawm qhov kub thiab txias, tab sis Nicr7030 cov ntsiab lus chromium siab dua tsim cov yeeb yaj kiab denser, ntau dua. Qhov no ua rau nws resistant rau "ntsuab rot" (intergranular oxidation) nyob rau hauv cov av ntub los yog txo cov huab cua, ncua nws cov kev pab cuam lub neej rau 8000+ teev (20% ntev dua Nicr8020 nyob rau hauv hnyav ib puag ncig).

Nicr6040, nrog cov ntsiab lus chromium qis, muaj cov oxide zaj duab xis tsis tshua muaj kev ruaj ntseg uas ua rau tev ntawm qhov kub siab tshaj 1000 ° C, ua rau lub neej ua haujlwm luv thiab nce nqi kho.

4. Nqi & Daim Ntawv Thov Adaptability

Nicr7030 muab cov txiaj ntsig zoo tshaj plaws: nws cov ntsiab lus nickel qis (piv rau Nicr8020) txo cov nqi ntawm cov khoom siv raw los ntawm 15-20%, thaum nws qhov kev ua tau zoo suav nrog 80% ntawm nichrome hlau daim ntawv thov scenarios. Nws yog qhov kev xaiv zoo tshaj plaws rau cov khoom lag luam loj xws li cov khoom siv hauv tsev thiab cov tshuab cua sov hauv tsheb, qhov uas ntsuas qhov ua tau zoo thiab tus nqi yog qhov tseem ceeb.

Nicr8020 cov ntsiab lus ntau dua nickel nce nws cov nqi, ua rau nws tsuas yog tsim nyog rau cov ntawv thov kub tshwj xeeb (piv txwv li, kev sim tshuaj aerospace). Lwm cov qauv qis-nickel zoo li Nicr6040 yog pheej yig dua tab sis tsis muaj kev ua tau zoo kom tau raws li kev lag luam lossis kev xav tau hauv hluav taws xob.

Xaiv Phau Ntawv Qhia

• Xaivnqi 7030Yog tias koj xav tau: Ntau yam kev ua tau zoo, kev ua haujlwm yooj yim (khoov / vuam), kev siv nyiaj zoo, thiab siv hauv cov khoom siv hauv tsev, cua sov tsheb, cua sov, lossis cov khoom siv hluav taws xob precision.
• Xaivnco 8020Yog tias koj xav tau: Kev ua haujlwm kub siab dua (1300 ° C +) thiab cov khoom siv hluav taws xob ua kom muaj zog (piv txwv li, tshwj xeeb hauv qhov cub).
• Xaiv lwm cov qauv (piv txwv li, Nicr6040) tsuas yog rau qhov kub thiab txias, qhov xav tau qis (piv txwv li, cov resistors yooj yim).

Nrog nws cov kev ua tau zoo, kev ua tau zoo, thiab kev hloov pauv dav dav, Nicr7030 yog qhov kev xaiv zoo tshaj plaws rau cov neeg siv khoom feem ntau. Peb lub tuam txhab muab cov kev qhia tshwj xeeb (inch, ntev, ntim) thiab kev txhawb nqa kom ntseeg tau tias Nicr7030 zoo kawg nkaus phim koj daim ntawv thov xav tau.