Dab tsi yog cov hlau loj hauv monel -} kev paub

1. Dab tsi yog cov hlau loj hauv monel?

Thawj cov hlau hauv txhua lub monels alels (ib tsev neeg ntawm nickel - tooj liab Superalloys) yognpib tsib caug (ni)Cov. Npib Npib feem ntau yog cov feem coob tshaj plaws ntawm Monel cov tshuaj muaj pes tsawg leeg, xws li kwv yees li 60% txog 70% los ntawm qhov hnyav.

Tooj liab (Cu) yog qhov thib ob - muaj hlau ntau tshaj plaws hauv monel, feem ntau ua 20% mus rau 35% ntawm alloy. Qhov no nickel {{4 4}} tooj liab yog dab tsi txhais tau monel cov khoom ua haujlwm tsis kam (acidic ib puag ncig tsis kam) thiab zoo siv tshuab zog. Thaum ib co monel variants (piv txwv li, monel k500) suav nrog cov aluminium me me ntawm txhuas (al) thiab titanium (cov no yog cov khoom siv me me. Nickel tseem muaj tus yam ntxwv thiab kev txhais cov hlau loj hauv Monel.

2. Dab tsi yog cov khoom siv ntawm Monel?

Monel yog tsim tawm los ntawm kev siv ntau cov ntaub ntawv raw, nrog qhov tseeb muaj ntau yam sib txawv me ntsis los ntawm cov qib tshwj xeeb (xws li Monel 400, Monel K500). Cov ntaub ntawv nyoos tseem ceeb muaj xws li:

Thawj Npib tsib: Tso tawm los ntawm Nickel ores (piv txwv li, pentlandite, garnierite) uas muaj tseeb, thiab siv npib ntshiab) lossis nickel matte). Qhov no yog lub nyob raw khoom rau Monel lub corrosion tsis kam thiab tag nrho kev ncaj ncees.

Tooj liab: Feem ntau muab raws li high -}}}}}} ill illots, uas tau melder agred thiab sib xyaw nrog cov npib tsib lub hauv paus. Tooj liab txhim kho Monel lub ductility thiab hloov kho nws corrosion tsis kam rau ib puag ncig tshwj xeeb (piv txwv li, txo cov sulfuric acid nres).

Cov Ntsiab Lus Tsawg Alloy (rau cov qib tshwj xeeb):

RauMonel K500(ib qho nag lossis daus - Cov ntaub ntawv muaj zog) yog cov khoom siv roj hmab txiv ntoo) thiab cov hmoov txhuas) thiab cov hmoov av rau cov khoom siv me me (2-3% AL, 0.3-0.9% TI).

Rau impurity tswj: kab nqis ntawm deoxidizers (piv txwv li, manganige, silicon) yuav tau ntxiv thaum homogy, txawm hais tias cov no tsis suav hais tias cov khoom siv raw thawj.

Cov ntaub ntawv raw no tau melted ua ke hauv kev tswj cov chaw ua hluav taws xob, tom qab ntawd ua kom meej rau cov ntaub ntawv ua kom tiav (cov ntawv tuav, cov ntawv txheeb, cov ntawv xov hlau).

3. Dab tsi yog xim ntawm Monel hlau?

Monel cov khoom pov thawj atxawv txawv, silvery - grey rau lub teeb Nickel {{1} grey xim- Tus cwj pwm pom zoo tau los ntawm nws cov ntsiab lus Nickel, sib npaug nrog tooj liab.

Tsis zoo li tus liab liab dawb huv (uas muaj qhov ci ntsa iab liab (}}}}}} paker) lossis muaj ib qho kev sov siab me ntsis, ntau dua "Earthy" lub suab ntshiab li Nickel.

Qhov tseeb ntxoov ntxoo tuaj yeem sib txawv marginal los ntawm Qib: Cov ntsiab lus Moncel (~ 30% (Ntxiv cov ntsiab lus tooj liab grey) (~ 30% (Ntxiv cov ntsiab lus tooj liab grey)

Tom qab machining lossis polishing, monel tsim ib qho smoother, ntau yam uas ua tau zoo li cov khoom sib luag kom zoo nkauj {{grey} grey grey lub tsos. Sij hawm dhau mus, yog tias raug rau cov cua lossis ib qho xim me me, nws yuav tsis muaj xeb ntxiv rau ntawm cov hlau, uas tsis zoo li xeb ntawm cov hlau, uas yog liab - xim av). Nyob rau hauv cov chaw hnyav (piv txwv li, txheej oxide yuav tsaus me ntsis tab sis tseem cov mrey tus yam ntxwv.

Cov xim no ua rau malel visually nthuav tawm los ntawm cov hlau txias (uas yog feem ntau txias dua, blood {{grey) thiab tooj dag / bronze (uas muaj lub zog ua kom muaj zog lossis liab qab.