Nickel Chrome Resistance Alloys
Nichrome, tseem hu ua npib tsib xee chrome, yog ib qho hlau uas tsim los ntawm kev sib xyaw nickel, chromium thiab, qee zaus, hlau. Qhov zoo tshaj plaws paub txog nws cov cua kub tsis kam, nrog rau nws cov kev tiv thaiv corrosion thiab oxidation, cov hlau yog qhov tseem ceeb heev rau ntau daim ntawv thov. Los ntawm kev tsim khoom lag luam mus rau kev nyiam ua haujlwm, nichrome nyob rau hauv daim ntawv ntawm cov hlau yog tam sim no nyob rau hauv ntau yam khoom lag luam, khoom siv tes ua thiab cov cuab yeej. Nws kuj pom cov ntawv thov hauv cov chaw tshwj xeeb.
Nichrome hlau yog ib qho hlau uas ua los ntawm nickel thiab chromium. Nws tiv taus cua sov thiab oxidation thiab ua haujlwm ua cua sov hauv cov khoom xws li toasters thiab plaub hau tshuab. Hobbyists siv nichrome hlau hauv ceramic sculpture thiab glassmaking. Cov hlau tseem tuaj yeem pom hauv cov chaw kuaj mob, kev tsim kho thiab cov khoom siv hluav taws xob tshwj xeeb.
Vim tias nichrome hlau tiv taus hluav taws xob, nws yog qhov tseem ceeb heev uas yog cov khoom cua sov hauv cov khoom lag luam thiab cov cuab yeej hauv tsev. Toasters thiab cov tshuab ziab plaub hau siv cov coils ntawm nichrome hlau los tsim kom muaj cua sov ntau, xws li cov tshuab ua kom sov thiab cov cua sov. Cov tshuab hluav taws xob kuj tseem siv nichrome hlau los ua haujlwm. Qhov ntev ntawm nichrome hlau kuj tuaj yeem siv los tsim cov hlau kub kub, uas tuaj yeem siv hauv tsev lossis hauv qhov chaw muaj kev lag luam los txiav thiab tsim cov foams thiab plastics.
Nichrome hlau yog tsim los ntawm cov hlau tsis muaj hlau nplaum uas feem ntau yog npib tsib xee, chromium, thiab hlau. Nichrome yog tus cwj pwm los ntawm nws qhov siab tiv taus thiab zoo oxidation tsis kam. Nichrome hlau kuj muaj ductility zoo tom qab siv thiab zoo weldability.
Tus lej uas tuaj tom qab hom Nichrome hlau qhia txog feem pua ntawm cov npib tsib xee hauv cov hlau. Piv txwv li, "Nichrome 60" muaj kwv yees li 60% Nickel nyob rau hauv nws muaj pes tsawg leeg.
Cov ntawv thov rau Nichrome hlau suav nrog cov cua kub ntawm cov tshuab plaub hau, cov sealers thaum tshav kub kub, thiab kev txhawb nqa ceramic hauv cov kiln.
| Hom alloy | Txoj kab uas hla | Kev tiv thaiv | Tensile | Elongation (%) | Khoov | Max.Nruam | Lub neej ua haujlwm |
| Cr20 Ni80 | <0.50 | 1.09 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1200 | > 20000 |
| 0.50-3.0 Nws | 1.13 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1200 | > 20000 | |
| > 3.0 | 1.14 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1200 | > 20000 | |
| Cr30Ni70 | <0.50 | 1.18 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1250 | > 20000 |
| ≥0.50 | 1.20 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1250 | > 20000 | |
| Nc15Ni60 | <0.50 | 1.12 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1125 | > 20000 |
| ≥0.50 | 1.15 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1125 | > 20000 | |
| Cr20Ni35 | <0.50 | 1.04 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1100 | > 18000 |
| ≥0.50 | 1.06 ± 0.05 | 850-950 : kuv | > 20 | > 9 | 1100 | > 18000 |
