Cov khoom siv iav yog qhov nyuaj dua, tab sis tuaj yeem muab faib ua cov ntaub ntawv tseem ceeb thiab cov khoom siv raw khoom raws li lawv txoj haujlwm.Cov ntaub ntawv tseem ceeb yog lub cev tseem ceeb ntawm cov iav thiab txiav txim siab lub ntsiab lub cev thiab tshuaj lom neeg ntawm cov iav.Cov khoom siv raw khoom muab cov iav tshwj xeeb thiab ua kom yooj yim rau cov txheej txheem tsim khoom.
1. Cov ntaub ntawv tseem ceeb ntawm iav
(1) Silica xuab zeb los yog borax: Lub ntsiab tseem ceeb ntawm silica xuab zeb los yog borax nkag mus rau hauv lub khob yog silicon oxide los yog boron oxide, uas tuaj yeem yaj mus rau hauv lub ntsiab ntawm lub khob thaum lub sij hawm combustion, uas txiav txim siab lub ntsiab ntawm lub iav, thiab hu ua silicate iav los yog boron raws li.Ntsev iav.
(2) Soda los yog Glauber's ntsev: Cov ntsiab lus tseem ceeb ntawm cov dej qab zib thiab Glauber cov ntsev nkag mus rau hauv iav yog sodium oxide, uas tuaj yeem tsim ib qho fusible ob ntsev nrog acidic oxides xws li silica xuab zeb thaum lub sij hawm calcination, uas ua raws li ib tug flux thiab ua rau lub khob yooj yim. ua duab.Txawm li cas los xij, yog tias cov ntsiab lus loj dhau lawm, tus nqi thermal expansion ntawm lub khob yuav nce thiab lub zog tensile yuav txo.
(3) Limestone, dolomite, feldspar, thiab lwm yam .: Cov khoom tseem ceeb ntawm limestone nkag rau hauv iav yog calcium oxide, uas txhim kho cov tshuaj lom neeg ruaj khov.
thiab mechanical zog ntawm lub khob, tab sis cov ntsiab lus ntau dhau yuav ua rau lub iav tawg thiab txo qhov kub tsis kam.
Dolomite, raws li cov khoom siv raw rau kev qhia txog magnesium oxide, tuaj yeem txhim kho cov pob tshab ntawm iav, txo thermal expansion thiab txhim kho dej tsis kam.
Feldspar yog siv los ua cov khoom siv raw los qhia txog alumina, uas tuaj yeem tswj tau qhov kub thiab txias thiab txhim khu kev ruaj ntseg.Tsis tas li ntawd, feldspar kuj tseem tuaj yeem muab cov poov tshuaj oxide los txhim kho cov thermal expansion ntawm cov iav.
(4) iav cullet: Feem ntau hais lus, tsis yog tag nrho cov khoom siv tshiab yog siv thaum tsim iav, tab sis 15% -30% cullet yog tov.
2, auxiliary khoom rau iav
(1) Decolorizing tus neeg sawv cev: impurities nyob rau hauv cov ntaub ntawv raw xws li hlau oxide yuav coj xim rau iav.Soda tshauv, sodium carbonate, cobalt oxide, npib tsib xee oxide, thiab lwm yam yog siv los ua decolorizing tus neeg sawv cev.Lawv tshwm sim hauv lub khob kom ntxiv cov xim qub, kom lub khob ua tsis muaj xim.Tsis tas li ntawd, muaj cov tshuaj txo cov xim uas tuaj yeem tsim cov xim sib xyaw nrog cov xim tsis huv.Piv txwv li, sodium carbonate tuaj yeem oxidize nrog hlau oxide los ua hlau dioxide, uas ua rau lub iav hloov ntawm ntsuab mus rau daj.
(2) Xim tus neeg sawv cev: Qee cov hlau oxides tuaj yeem yaj ncaj qha rau hauv cov tshuaj iav kom xim lub khob.Piv txwv li, hlau oxide tuaj yeem ua iav daj lossis ntsuab, manganese oxide tuaj yeem ua ntshav, cobalt oxide tuaj yeem xiav, npib tsib xee oxide tuaj yeem ua xim av, tooj liab oxide thiab chromium oxide tuaj yeem ntsuab, thiab lwm yam.
(3) Refining tus neeg saib xyuas: Tus neeg saib xyuas kom meej tuaj yeem txo qhov viscosity ntawm cov iav yaj, thiab ua kom cov npuas tsim los ntawm cov tshuaj tiv thaiv yooj yim kom dim thiab qhia meej.Feem ntau siv clarifying agents xws li dawb arsenic, sodium sulfate, sodium nitrate, ammonium ntsev, manganese dioxide thiab hais txog.
(4) Opacifier: Opacifier tuaj yeem ua rau iav ua kua mis dawb lub cev.Feem ntau siv opacifiers yog cryolite, sodium fluorosilicate, tin phosphide thiab lwm yam.Lawv tuaj yeem tsim 0.1-1.0μm hais, uas tau muab tshem tawm hauv lub khob kom cov iav tsis pom.
Post lub sij hawm: Apr-13-2021