Txawm hais tias cov nyiaj yog inert nyob rau hauv cov organic orgoDed thiab volacanized los ntawm cov nyiaj ntawm kev ua yeeb yam xws li, ntau yam hluav taws xob ua ntej, ntau yam ntxiv rau manganese, tshuaj pleev ib ce, tin, German, arsenic, galium, zinc, thiab ntau hom kev sib tw ntawm cov hmoov av los txhim kho, thiab lawv kuj tseem muaj zog, thiab lawv kuj tseem muaj zog ntxiv, hnav thiab txhim kho kev sib cuag hluav taws xob Kev Ua Haujlwm . rau cov khoom siv sib txawv, ua kom muaj zog siv cov khoom siv ua ke nrog cov khoom siv tsis kam Nyob rau hauv lub cartic hlau carter cov hlau. Qhov tseem ceeb, cov khoom siv sib xyaw ua ke yog cov khoom siv cadming, mangle oney, mangle one
Nyiaj yuav nqus tau ntau cov pa hauv lub xeev molten {}} Qhov kub thiab txias {} nws lub ntim {}} proferties ua teeb meem rau smelting thiab casting . nws ua rau cov pa roj cua sov thiab ua rau muaj kev tiv thaiv lub zog thaum muaj pa taws kub. xws li pores thiab oxide inclusions. tooj liab oxide incide, thiab lwm cov yog grey huab-zoo li cov ntsiab lus ntawm lub ntsej muag polished, uas yog Sib sib zog nqus .} Yog tias muaj qhov tsis muaj pa tawm, thiab ntau zaus nyob rau hauv kev sib txuam ntawm cov pa roj oxygen hauv cov nyiaj Kua, tus yuam sij yog kom zam dhau cov kua hlau ua kom zoo nkauj ntau li ntau tau thaum lub sij hawm melting lossis cov hau kev hauv qab no tuaj yeem siv:
(1) Lub Tshuab Nqus Tsev SMELTING siv hluav taws xob smelting smelting, lossis inert roj xws li argon lossis nitrogen siv oxygen nyob rau hauv lub smelting chamber thiab txo cov oxidative nqus ntawm cov hlau molten;
(2) Txo cov nplaim hluav taws yuav tsum siv rau cov roj roj smelting . hauv hluav taws xob rauv taws tuaj yeem muab cov hlau ci ntsa iab;
(3) sprinkle crushal hluav taws xob lossis anhydrous boric acid nyob rau saum npoo ntawm cov kua roj av los ntawm ob txoj kev tsis haum rau kev siv ntawm centrifuges, tab sis nws ua haujlwm zoo rau manually ua riged suption tshuab;
(4) Hauv txoj kev saum toj no, nws tseem ceeb heev rau kev tiv thaiv ntawm cov hlau nplaum, yog tias cov nplaim taws yuav tsum muab tshem tawm cov pwm ua kom tshem tawm .
