Hauv kev tsim cov hlau thiab cov hlau nrum hlau, ntxiv rau ntau yam tshuaj lom neeg siv tau zoo thiab ua tiav cov cwj pwm ntawm kev ua haujlwm. Txij li cov ntsiab lus no kim nyob rau hauv lawv daim ntawv ntshiab, lawv tau siv nyob rau hauv daim ntawv ntawm alloys nrog hlau - ferrroalloys, tus nqi uas yog ntau dua li yooj yim ntau lawm thev naus laus zis. Cov alloys tau cais raws li lawv cov khoom lag luam ntau lawm.
Loj ferroalloys
Pab pawg no suav nrog cov ntau zaus thiab dav siv cov ntsiab lus ntau cov hlau alloys:
chromium;
silicon;
tus kws dai txiv manganese
Thoob ntiaj teb, kev tsim txhua xyoo ntau lawm ntawm cov nyiaj loj ferroalloys rau ntau lab ntawm tons. Lawv lub hom phiaj tseem ceeb yog los qhia lawv mus rau hauv iron-muaj alloys rau lub hom phiaj ntawm deoxidation (txo cov ntsiab lus oxygen) thiab kev hloov pauv (hloov cov yam ntxwv).
Ferrocrome yog siv los ua kom lub zog ua kom muaj zog thiab kua txiv ntawm cov hlau. Thaum nws ntxiv rau cov qib tsawg carbon, lawv ua cov hlau stainless. Ferrosilicon (ib qho alloy ntawm hlau thiab silicon) yog siv nyob rau hauv kev tsim khoom ntawm lub caij nplooj ntoo hlav, hluav taws xob, thiab cov hlau kub resistant. Nws txhim kho lub zog thiab hardness thiab txo qhov duction ntawm cov hlau. Ntxiv ntawm ferromanganese muab cov hlau ua kom muaj zog ntau ntxiv thiab nce cov hnav tsis kam. Ferromanganese tseem siv los hloov npib tsib xee nyob hauv smelting ntawm stainless hlau.
Me ferroalloys
Cov pab pawg me muaj lwm yam ferroalloys. Lawv tsim thiab siv nyob rau hauv volumes kwv yees li ib qho kev txiav txim ntawm qhov ntau me dua li cov loj. Cov no suav nrog cov hlau hlau nrog cov ntsiab lus siab ntawm cov ntsiab xws li:
npib tsib xee;
tungsten;
Titanium;
molybdenum;
vagadium;
Boron;
cobalt;
Aluminium;
niobium;
Alkaline lub ntiaj teb thiab tsis tshua muaj cov av me.
Lawv, zoo li loj ferroalloys, yog siv los ua deoxidizing thiab alloying additives los hloov cov yam ntxwv ntawm cov hlau thiab nrum hlau. Lawv kuj tau siv nyob rau hauv kev tsim cov electrodes rau vuam thiab rau kev tsim cov tshuaj sib xyaw ua ke siv hauv cov txheej txheem thev naus laus zis ntawm cov txheej txheem pob zeb hauv cov ntxhia. Lwm daim ntawv thov yog cov khoom siv ntawm cov khoom siv huv si.
