Dab tsi yog cov hom ntawm induction taws cov ntaub ntawv hauv ob sab phlu?

Induction rauv hauv ob sab phlu tseem hu ua induction furnace refractory khoom, induction rauv qhuav vibrating khoom, induction rauv knotting khoom, induction rauv ramming khoom, muab faib ua acidic, nruab nrab, thiab alkaline hauv ob sab phlu. Cov khoom siv acidic hauv ob sab phlu yog ua los ntawm high-purity quartz, molten Quartz yog cov khoom siv tseem ceeb, cov khoom siv ntxiv yog siv los ua tus neeg sawv cev sintering; cov khoom siv hluav taws xob nruab nrab yog ua los ntawm alumina thiab cov khoom siv aluminium siab ua cov khoom siv tseem ceeb, thiab cov khoom siv sib xyaw yog siv los ua tus neeg sawv cev sintering; Cov khoom siv hluav taws xob yooj yim hauv ob sab phlu yog ua los ntawm high-purity fused corundum thiab high-purity hluav taws xob Fused magnesia thiab high-purity spinel yog siv los ua cov ntaub ntawv tseem ceeb, thiab cov khoom siv ntxiv yog siv los ua cov neeg ua haujlwm sintering.

Muaj peb hom induction furnace hauv ob sab phlu. Ib qho yog acidic hauv ob sab phlu, uas yog tsim los ntawm qhuav ramming ntawm quartz xuab zeb, thiab tus neeg sawv cev sib txuas yog borax lossis boric acid; Lwm qhov yog qhuav ramming thiab molding ntawm magnesia, thiab tus neeg sawv cev sib txuas kuj yog borax lossis boric acid. Ib qho yog qhov nruab nrab ntawm qhov cub hauv ob sab phlu, uas yog rammed thiab tsim los ntawm siab alumina bauxite clinker. Nyob rau hauv xyoo tas los no, nrog kev txhim kho ntawm cov cuab yeej technology thiab qhov tshwm sim ntawm ntau yam ntaub ntawv tshiab, ntau cov ntaub ntawv tshiab hauv ob sab phlu kuj tau tshwm sim nyob rau hauv induction furnace lining cov ntaub ntawv.

1. Acid hauv ob sab phlu

Acidic furnace hauv ob sab phlu yog feem ntau quartz xuab zeb, uas yog pheej yig, dav faib, zoo rwb thaiv tsev, tsis tshua muaj kev tsim kho yuav tsum, ob peb tsis xws luag thaum siv, thiab kuj ruaj khov ntau lawm. Txawm li cas los xij, quartz xuab zeb muaj qhov cuam tshuam tsis zoo thiab tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua rau qhov cub induction loj. Thiab muaj qhov hloov pauv theem thib ob thaum lub sijhawm cua sov, tus qauv kev ruaj ntseg tsis zoo, cov tshuaj lom neeg ruaj khov tsis zoo, thiab nws tsuas yog cuam tshuam nrog cov slag los ua corrosion. Txhawm rau tiv thaiv cov teeb meem no, fused quartz tuaj yeem siv. Nws cov ntsiab lus yog siab, cov ntsiab lus ntawm silicon dioxide yog ntau dua 99%, lub refractoriness nce mus rau qhov tseem ceeb, ze rau lub melting point, thiab tsis muaj theem nrab hloov thaum cua sov, tsis muaj cua sov txheem hloov, thiab thermal shock yog ruaj khov. . Kev sib deev kuj tau nce siab heev.

2. Cov kab hauv nruab nrab

Lub fused corundum yog siv los ua cov txheej txheem ntawm induction rauv. Vim hais tias lub melting point ntawm dawb corundum yog siab li 2050 ℃, hardness yog siab li 8. Nws yog hnav-resistant, high-temperature resistant, thiab muaj tshuaj stability zoo dua quartz. Haum rau kub cam khwb cia hlau los yog loj rauv hauv ob sab phlu. Cov yam ntxwv yog tias nws kuj muaj qhov tsis xws luag ntawm theem hloov thiab loj thermal expansion coefficient. Hauv kev xyaum, kev koom tes ntawm spinel hmoov tuaj yeem ua rau muaj kev tiv thaiv corrosion thiab tus qauv ruaj khov.

3. Alkaline hauv ob sab phlu

Cov tsoos alkaline rauv hauv ob sab phlu yog tsim los ntawm qhuav ramming ntawm magnesia. Qhov kom zoo dua yog siab refractoriness, ze rau 2800 ℃, qhov tsis xws luag yog qhov expansion coefficient loj, yooj yim rau tawg, lub magnesia hauv ob sab phlu yog corrosion resistant, lub neej ntev, luv nqi, thiab nws yog dav siv. Kev koom tes hauv cov hmoov dawb corundum lossis spinel hmoov ua rau kev ua haujlwm zoo.

4. Spinel hauv ob sab phlu

Spinel hauv ob sab phlu yog ib yam tshiab ntawm cov ntaub ntawv hauv ob sab phlu. Nws yog molded los ntawm alumina thiab magnesia, raug rho tawm ntawm qhov kub thiab txias los yog preformed rau hauv spinel los ntawm hluav taws xob fusion, thiab tom qab ntawd tsim ntau yam particle qauv raws li xav tau. Nws yog siv los ua induction rauv hauv ob sab phlu, thiab tus neeg sawv cev sib txuas tseem xaiv borax lossis boric acid muaj qhov zoo ntawm cov kab dawb corundum rauv hauv ob sab phlu thiab magnesia furnace hauv ob sab phlu, thaum tiv thaiv nws qhov tsis xws luag. Nws yog txoj kev loj hlob ntawm qhov loj-scale induction rauv hauv ob sab phlu thiab high-temperature furnace hauv ob sab phlu. Muaj ntau cov khoom siv hluav taws xob txawv teb chaws tuaj rau hom no.

5. Cov cuab yeej siv tshiab thiab cov khoom siv tshiab ntawm cov khoom siv hauv cov khoom siv hluav taws xob

① Koom nrog cov hmoov zoo (feem ntau nyob rau hauv ob peb microns) hauv cov khoom siv hauv cov khoom siv hluav taws xob, uas tuaj yeem txhim kho cov kev tiv thaiv corrosion thiab thermal shock stability ntawm cov khoom siv hluav taws xob, xws li silica micro hmoov, alumina micro hmoov, dawb corundum micro hmoov, spinel micro hmoov, thiab lwm yam.

② Qhuav molding. Cov tsoos rauv hauv ob sab phlu yog tag nrho tsim los ntawm cov hmoov qhuav thiab qhuav ramming. Qhov tsis xws luag yog tias nws yooj yim rau chromatograph thiab ua qhov tsis xws luag xws li khoob. Nyob rau hauv txoj kev ib nrab qhuav, 2% mus rau 3% dej sib tov yog siv los txo cov chromatography, thiab kev ncaj ncees yog qhov zoo, thiab nws yuav tsis tsim kev puas tsuaj ntau dhau. Nws tsuas yog xav tau me ntsis ntev dua nyob rau hauv qhov cub qis.

③ Cov txheej txheem ib nrab qhuav molding koom nrog cov calcium aluminate cov cement, nrog cov kua qaub ntshiab lossis nruab nrab rauv hauv ob sab phlu; Thaum nyob rau hauv alkaline furnace hauv ob sab phlu, nws koom nrog magnesium oxide, sodium hexametaphosphate, thiab lwm yam.