Lub ntsiab lus ntawm txheej txheem txheej txheem thiab khoom siv rau Fiberglass Melting
Kev tsim tawm ntawmfiberglasspib nrog nws cov txheej txheem tseem ceeb: iav melting. Cov txheej txheem no yog hais txog cov khoom siv hluav taws xob cua sov uas muaj qhov sib faib tshwj xeeb hauv qhov kub siab - qhov cub kub kom dhau los ua cov tshuaj lom neeg lub cev thiab tshuaj lom neeg, thaum kawg tsim cov iav molten nrog cov tshuaj sib xyaw ua ke uas ua tau raws li qhov yuav tsum tau ua. Raws li cov ntsiab lus tseem ceeb, tag nrho cov txheej txheem tuaj yeem muab faib ua tsib ntu sib law liag thiab sib cuam tshuam:
Tsib theem ntawm iav Melting
1. Silicate Formation theem
Cov ntaub ntawv batch (tsuas yog silica xuab zeb, limestone, dolomite, soda tshauv, borax, thiab lwm yam) yog rhuab mus rau 800 ~ 900 degree. Kev puas tsuaj, tshuaj sib xyaw ua ke thiab cov khoom sib xyaw ua ke- cov tshuaj tiv thaiv theem tshwm sim nyob rau theem no, tso cov pa roj ntau xws li CO₂ thiab H₂O. Cov khoom sib xyaw ntawm cov khoom siv raw hloov mus rau hauv sinter uas muaj ntau yam silicates thiab residual silica.
2. Cov txheej txheem iav
Qhov kub nce ntxiv mus rau 1200 ~ 1250 degree. Lub sinter pib yaj, thiab residual silica hais maj mam yaj mus rau hauv silicate yaj tsim. Thaum kawg ntawm theem no, cov ntaub ntawv batch feem ntau hloov mus rau hauv cov khoom siv iav, tab sis cov iav molten muaj cov npuas ntau nrog cov tshuaj tsis sib xws thiab qhov kub thiab txias.
3. Ntug iav Refining
Qhov kub nce mus rau qhov siab tshaj plaws melting kub (feem ntau 1400 ~ 1600 degree). Lub viscosity ntawm molten iav poob sai heev, ua kom yaj yaj, cov tshuaj tiv thaiv- tsim cov pa roj thiab cov npuas seem kom nthuav dav, nce thiab khiav tawm ntawm cov kua dej. Cov theem no yog qhov tseem ceeb rau kev tshem tawm cov npuas pom thiab tau txais cov iav ntshiab molten.
4. Homogenization theem ntawm Molten iav
Qhov no theem pib ntawm refining kub los yog ib tug me ntsis kub. Thermal convection, bubbling agitation thiab mechanical stirring ntawm molten iav tshem tawm cov tshuaj inhomogeneities (striae, knots) thiab thermal inhomogeneities, ua tiav cov tshuaj lom neeg muaj pes tsawg leeg thiab kub thoob plaws hauv cov iav molten. Homogenization yog qhov tseem ceeb rau kev ruaj ntseg ntawm cov khoom fiber ntau kawg.
5. Molten iav txias theem
High -kub homogenized molten iav yog txias mus rau ib tug viscosity ntau haum rau fiber ntau txoj kev (ncaj kos duab los yog tshuab), kwv yees li 1000 ~ 1300℃. Qhov kub gradient thiab txias tus nqi yuav tsum raug tswj kom meej thaum lub caij txias kom tsis txhob ua rau thermal uniformity thiab ncav cuag qhov tseeb viscosity uas yuav tsum tau ua.
Core Melting Khoom
Qhov saum toj no siab -kub melting txheej txheem cia siab rau ib tug tshwj xeeb melting khoom system:
1. Lub cub tawg
Cov khoom siv hluav taws xob tseem ceeb rau cov iav melting, feem ntau yog lub tshuab ua hluav taws xob tsis tu ncua (xws li lub tshuab hluav taws xob, hluav taws xob boost rauv lossis tag nrho - hluav taws xob melting rauv). Nws cov refractory-lined tank tuav cov ntaub ntawv batch, thiab siab - qhov kub thiab txias ib puag ncig yog muab los ntawm combustion nplaim taws los yog electrodes kom tiav tag nrho cov theem melting. nruj zoning tswj ntawm qhov kub thiab txias, cua thiab siab yuav tsum tau nyob rau hauv lub cub tawg.
2. Cov cuab yeej pabcuam
(1) Batch Charger: Pub cov ntaub ntawv batch tsis tu ncua, sib npaug thiab tsis tu ncua rau hauv lub qhov cub noj qhov chaw nres nkoj kom lav qhov kev ua haujlwm ruaj khov thiab cov iav zoo ib yam.
(2) Bubbler: Nruab rau hauv qab ntawm lub tank melting, nws txhaj cov pa roj (cua pa, oxygen, nitrogen, thiab lwm yam) rau hauv cov iav molten kom tsim cov npuas dej nce siab, txhim kho convection thiab nplawm, thiab ua kom nrawm nrawm dua thiab homogenization. (3) combustion System: Muab thermal zog rau melting, muaj ob ntu:
Rauv combustion system: Muab thawj cov cua sov rau lub qhov cub loj (natural gas / roj burners thiab tswj systems).
Forehearth combustion system: Cov khoom siv hluav taws xob rau kev txuag hluav taws xob lossis kev hloov kho qhov kub ntawm lub hauv pliaj, cov iav molten txuas txuas lub qhov cub tawg thiab cov cuab yeej tsim. (4) Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob: Rov qab cov khoom siv hluav taws xob los ntawm siab - cov pa hluav taws xob kub tawm los ntawm lub qhov cub kom preheat combustion huab cua (thiab qee zaum roj roj), ua kom lub cub tawg thermal efficiency thiab txo cov roj noj.
Xaus
Hauv cov ntsiab lus, fiberglass melting yog ib qho kev tswj xyuas qhov siab -kub ntawm lub cev thiab tshuaj tiv thaiv txheej txheem nrog tsib theem sib txuas. Lub tshuab melting rauv thiab nws cov khoom siv sophisticated auxiliary system ua ke tsim lub hauv paus platform rau kev ua tiav cov txheej txheem nyuaj no thiab ua tau zoo - iav molten zoo, nteg cov khoom tseem ceeb rau kev tsim fiber ntau.
