【1】 Qhov sib txawv ntawm cov khoom siv lub cev thiab tshuaj lom neeg
Chromium (CR) thiab npib tsib xee (NI) yog ob qho tib si transition hlau cov ntsiab lus thiab muaj ntau yam zoo sib xws hauv lub cev thiab tshuaj lom neeg. Piv txwv li, nkawd ob leeg muaj silvery-dawb ntawm cov xim hlau lug luster, kev ua qauv zoo thiab cov yas. Txawm li cas los xij, tseem muaj qhov sib txawv ntawm qee qhov khoom, raws li hauv qab no:
1. Txawv ntom ntom ntom) lub ntom ntom ntom nti
2. Txawv melting ntsiab lus thiab cov ntsiab lus boiling: lub ntsiab lus melting ntawm chromium yog 1907 degrees Celsius thiab lub boiling point yog 2672 degrees Celsius; Thaum lub sijhawm melting ntawm Nickel yog 1453 degrees Celsius thiab lub boiling point yog 2732 degrees Celsius.
3. Cov tshuaj sib txawv: Chromium muaj cov siab corrosion tsis kam thiab hardness, yog li nws feem ntau siv nyob rau hauv kev tsim cov hlau stainless, cov log thiab dav hlau. Nickel muaj cov cua sov tsis kam thiab tawv, yog li nws feem ntau siv hauv kev tsim cov khoom kub, cov khoom siv roj av, roj teeb hlau, thiab roj teeb hlau, thiab roj teeb Yas, thiab lwm yam.
4. Cov ntawv thov sib txawv hauv cov hlau stainless: chromium yog siv los ua ib txheej chromium oxide uas tsis yooj yim oxidized; Nickel pab txhawm rau txhim kho lub zog, ductility thiab corrosion tsis kam ntawm cov khoom siv.
5. Sib txawv Magnetism: chromium muaj zog dua hlau nplaum, thiab cov uas tuaj yeem nyiam los ntawm cov hlau nplaum feem ntau muaj ntau chromium ntau li Chromium.
6. Cov tsos sib txawv xim: Nickel-Plated tsos yog silvery dawb nrog tint daj; Chromium-plated tsos yog qaim dawb nrog lub bluish tint.
[2] Txawv siv
Cov siv ntawm chromium thiab npib tsib xee kuj tseem txawv heev, feem ntau yog nyob rau hauv cov hauv qab no:
1. Kev siv lub ntsiab ntawm chromium: ua cov hlau tsis muaj roj
2. Kev siv Nickel tseem ceeb: ua cov ntaub ntawv kub siab tag, cov khoom siv roj hmab, cov roj teeb hlau, cov khoom siv hlau nyob hauv lub hwj chim, thiab lwm yam.
3. Cov ntawv thov sib txawv: Daim ntawv thov cov tshuaj chromium yog feem ntau muaj kev lag luam ntawm Nickel, cov tshuab thiab kev lag luam thiab hluav taws xob, thiab lwm yam.
Hauv cov ntsiab lus, txawm hais tias chromium thiab npib tsib xee muaj cov khoom siv lub cev thiab tshuaj lom neeg, lawv muaj qhov sib txawv ntawm lawv cov kev siv thiab kev thov. Txawv lwv thiab cov teb sib txawv thiab cov teb sib txawv yuav tsum muaj ntau hom hlau. Chromium thiab Nickel yog ob qho tseem ceeb heev cov hlau tseem ceeb, thiab lawv ua lub luag haujlwm tseem ceeb hauv tib neeg kev tsim khoom, lub neej thiab thev naus laus zis.
