Dab tsi yog Cov Khoom Siv Uas Zoo Rau Fiberglass Moulding?
Cov txheej txheem txheej txheem iav fiber ntau, mus rau qhov siab tensile ceev yuav yog txoj kab uas hla ntawm millimeter iav flow strand drafting, thiab txias curing rau hauv micron-loj iav fibers. Obviously, iav zoo yog ib qho tseem ceeb ua ntej yuav tsum tau ua kom tiav thiab ruaj khov fiber ntau txoj kev.
Cov txheej txheem iav fiber ntau ntawm cov iav zoo yuav tsum muaj xws li ob yam. Ua ntej, qhov yuav tsum tau ntawm cov iav yog qhov txawv ntawm lub hauv paus iav ntawm cov khoom kom tsawg li sai tau. Cov tshuaj no feem ntau yog peb pawg, ib qho yog npuas (gas inclusions); lwm qeb yog pob zeb (cov khoom sib xyaw ua ke); thiab tom qab ntawd ib pawg ntawm streaks thiab pob pob txha qog (vitreous inclusions). Lawv tau sau ua ke hu ua iav tsis xws luag. Qhov thib ob, nws yuav tsum muaj nyob rau hauv kev lag luam tas mus li, qhov sib xyaw ntawm iav hloov pauv yuav tsum me me, uas yog hais tias, muaj pes tsawg leeg yuav tsum ruaj khov.
I. Npuas
Npuas yog ib qho pom cov pa sib xyaw ua ke, nws qhov loj me los ntawm tsawg dua 1 hli mus rau ob peb hli. dav dav,<0.8mm called gray bubble, greater than 0.8mm called bubble. The chemical composition of bubbles varies, generally containing O2, N2, CO, CO2, SO2, NO, H0 and so on. Naya Ulevich E aluminum borosilicate glass ball gas analysis, mainly SO and CO2, accounting for about 70% of the total gas content; followed by H0, accounting for about 17%; followed by Nz and O2, accounting for about 12.6%. There are generally five causes of gas bubbles in glass, which can be referred to as primary bubbles, secondary bubbles, air bubbles, refractory bubbles, and iron-induced bubbles.
2. Pob zeb
Pob zeb yog ib qho kev puas tsuaj loj tshaj plaws. Cov pob zeb yog cov khoom siv pob zeb, pob zeb refractory, iav crystalization pob zeb, sulfate inclusions thiab lwm yam khoom txawv teb chaws. Tag nrho cov pob zeb no muaj teeb meem ntau dua rau kev ua haujlwm ntawm kev kos duab ntau dua li cov npuas cua. Feem ntau ntawm kev tawg ntawm lub taub hau yog tshwm sim los ntawm ntau yam pob zeb. Txawm hais tias cov pob zeb no tsis ua kom tawg, lawv yuav txo tau lub zog ntawm cov iav fiber ntau.A.Ф.Zak tau ua qhov kev sim. Cov iav yog thawj zaug nyob rau hauv qhov chaw nag lossis daus rau 6h, kom lub precipitated crystal kev loj hlob, thiab ces rub mus rau hauv fibers. Nws tau pom tias thaum siv sodium calcium iav, lub zog fiber ntau yog txo los ntawm 19% mus rau 47%, thiab aluminium borosilicate fiber txo los ntawm 27% mus rau 52%. Lub brittleness ntawm fibers uas muaj crystalline impurities kuj nce 9% rau 54%.
3. kev
Nyob rau hauv muaj pes tsawg leeg thiab lub cev muaj zog nrog lub hauv paus iav yog ho txawv ntawm lub iav lub cev yog hu ua streak. Yog hais tias nws yog nyob rau hauv daim ntawv ntawm cov hlaws dai thiab tee, nws kuj hu ua nodular qog. Cov kab txaij ntawm kev tsim fiber ntau kuj yog qhov tsis zoo. Vim tias lawv cov viscosity ntau dua li cov viscosity ntawm lub hauv paus iav, yog li feem ntau ua rau muaj kev hloov pauv loj ntawm cov kab fiber ntau, kom qhov zoo ntawm cov fiber ntau txo; viscosity loj heev yuav ua rau tawg.
4. qhov ruaj khov ntawm iav muaj pes tsawg leeg
Yog hais tias nyob rau hauv tas mus li ntau lawm, iav kua los yog iav pob muaj pes tsawg leeg nyob rau hauv lub sij hawm (hloov los ntawm kev ua hauj lwm los yog ib hnub los ntawm ib hnub) hloov ntau dhau, txawm tias lub khob nyob rau hauv saum toj no peb yam tsis xws luag vim hais tias xws li ntxiab yog heev me ntsis, tab sis tseem yuav coj. kev puas tsuaj rau cov hlau kos duab ua haujlwm no, hauv kev tswj hwm ntawm lub Hoobkas zoo dua, ib txwm ua tib zoo saib xyuas lub khob pob raws li hnub tsim khoom ntawm lub khob pob kom siv qhov kev txiav txim ntawm lub khob pob. Nrog rau cov txheej txheem ntawm tes kiln kos duab, qhov teeb meem tsis tshua muaj mob, tab sis qhov sib xyaw yuav tsum tsis txhob tso cai kom hloov pauv ntau dhau. Yog li ntawd, kev hloov pauv hauv iav muaj pes tsawg leeg yuav tsum tau tswj hwm, ob qho tib si hauv kev tsim cov iav pob thiab hauv kev tsim cov fibers ncaj qha los ntawm lub pas dej kiln kos duab. Kev tswj hwm ntau lawm xav kom cov kev sim rau cov kev ntsuas ntsuas tau yooj yim, nrawm thiab tseem muaj kev ntseeg siab, txhais tau hais tias qhov tseeb thiab qhov tseeb ntawm cov txheej txheem xeem tau raws li qhov yuav tsum tau ua ntawm cov tshuab tsim khoom.
