Vim li cas ziab fiberglass roving raw yarn yog ib qho tseem ceeb ntawm cov txheej txheem tseem ceeb hauv kev tsim cov khoom sib xyaw?
Kev tsim ntawmfiberglassyog cov txheej txheem tseem ceeb ntawm kev hloov pauv siab -kub viscous molten iav rau hauv cov fibers tsis tu ncua. Nws lub hauv paus yog nyob rau hauv kev tswj kinetic ntawm filament tsim thiab ruaj khov stretching.
Nyob rau hauv cov txheej txheem fiberglass ntau lawm, raw fiber ntau kom qhuav yog ib qho tseem ceeb kauj ruam txuas fiber ntau daim duab thiab cov khoom tom ntej. Nws lub hom phiaj tseem ceeb yog kom tshem tawm cov seem seem ntawm cov khoom qab zib fiber ntau, tso lub hauv paus rau cov txheej txheem tom ntej thiab qhov zoo ntawm cov khoom kawg.
Raw Fiber Tsim thiab Moisture Sources
Tom qab fiberglass melted thiab kos rau hauv monofilaments ntawm qhov kub thiab txias, nws yog bundled rau hauv fibers raw los ntawm ib tug bundler thiab raug mob mus rau lub tshuab nqus tsev lub taub hau los ntawm ib tug winding ntaus ntawv, tsim ib tug semi- cov khoom tiav- cov ncuav mog qab zib fiber. Thaum lub sij hawm tus txheej txheem no, kom paub tseeb tias cov fiber ntau ua tau zoo thiab bundleability, ib tug impregnating tus neeg sawv cev (feem ntau yog muab faib ua starch-raws li thiab reinforcing hom) yuav tsum tau siv rau nws nto siv oiling rollers los yog grooved log. Cov impregnating agents, uas twb muaj lawm nyob rau hauv daim ntawv ntawm cov dej emulsions, muaj tshaj 80% ya raws, ntxiv rau cov tseem ceeb Cheebtsam xws li lubrication thiab bonding. Yog li ntawd, lub ncuav mog qab zib fiber ntau tshiab tawm ntawm lub tshuab feem ntau muaj 8% mus rau 14% noo noo los ntawm qhov hnyav. Yog tias qhov seem ntawm cov dej tsis zoo no tsis raug tshem tawm, nws yuav ua rau muaj kev cuam tshuam rau cov txheej txheem tom ntej (xws li twisting, tws strands, plying, thiab weaving), thiab thaum kawg ua rau lub cev muaj zog ntawm cov khoom tiav.
Kev faib cov xov paj thiab ziab daim ntawv thov:
Raws li txoj kab uas hla monofilament, fiberglass precursors muab faib ua ob pawg:
* ** Cov xov paj zoo (Monofilament Diameter Tsawg dua lossis sib npaug ntawm 9μm): ** Feem ntau siv hauv kev lag luam textile. Tom qab twisting thiab warping, nws muaj peev xwm yuav woven rau hauv ntau yam iav ntaub, xws li hluav taws xob daim ntaub, thiab yog ib qho tseem ceeb substrate rau luam Circuit Court boards (PCBs).
* ** Roving Yarn (Monofilament Diameter> 9μm): ** Cov khoom siv tseem ceeb rau cov khoom sib xyaw. Kev ziab (lossis cua ziab) yog ib qho tseem ceeb tshaj tawm - cov kauj ruam ua. Tom qab ziab, lub roving precursors tuaj yeem ua tiav rau hauv ntau yam ntaub ntawv xws li chopped strand fibers, tws strand mats, stitch-woven fabrics, ply untwisted rovings, woven fabrics, thiab multiaxial fabrics, lug siv nyob rau hauv reinforcing thermoplastic (xws li, automotive qhov chaw) thiab cov khoom siv thermosetting (xws li, cov khoom siv hluav taws xob).
Tshwj tsis yog tias tau teev tseg, cov kev sib tham hauv qab no tsom mus rau cov txheej txheem ntawm fiberglass roving thiab nws cov khoom.
Lub luag haujlwm tseem ceeb ntawm kev ziab hauv cov txheej txheem tag nrho:
fiberglass ntau lawm muaj cov txheej txheem ntau thiab ua ntu zus, los ntawm lub tank rauv melting thiab kos duab mus rau rov ziab thiab tom ntej ncej- ua tiav (xws li tws strand lev, twisting, thiab weaving). Cov theem ntawm kev tswj thiab kev muaj peev xwm ntawm txhua theem cuam tshuam rau qhov zoo thiab kev ua tau zoo ntawm cov khoom kawg (xws li woven fabric thiab tws strand lev).
Kev lag luam qauv thiab cov ntsiab lus tseem ceeb zoo:
Ua cov khoom siv fiberglass hauv tsev, xws li Tuam Tshoj Jushi thiab Taishan fiberglass, ntiav cov khoom siv hluav taws xob siab tshaj plaws rau kev tsim khoom. Lawv cov khoom lag luam npog tag nrho cov saw hlau los ntawm siab - zoo roving mus rau ntau yam kev tshaj tawm - cov khoom lag luam ua tiav, thiab lawv cov txiaj ntsig tag nrho suav nrog ntau dua 70% ntawm kev lag luam hauv lub tebchaws. Txawm li cas los xij, feem ntau ntawm cov khoom lag luam tsis yog tsim los ntawm cov tuam txhab ua lag luam ncaj qha, tab sis yog muab los ntawm cov lag luam me me uas yuav rov los ntawm cov tuam txhab loj rau kev ua haujlwm ntxiv. Nyob rau hauv cov qauv no, qhov zoo stability ntawm kev yuav roving yog ib qho nyuaj rau lav, uas ua rau muaj kev txwv tseem ceeb ntawm qhov zoo thiab specifications ntawm cov khoom kawg.
Kev pom zoo tshwj xeeb
Rau cov ntawv thov uas xav tau kev ntseeg siab thiab sib xws, xws li fiberglass nuv ntses nkoj tsim khoom, yuav tsum muaj qhov tseem ceeb rau cov khoom siv fiberglass uas tsim los ntawm ib qho -cov txheej txheem kev kos duab rau lub cub tawg. Cov khoom lag luam no tau txais txiaj ntsig los ntawm kev tswj hwm nruj thoob plaws tag nrho cov txheej txheem, los ntawm cov khoom siv fiber ntau mus rau tom qab- ua, thiab lawv cov cuab yeej zoo tshaj plaws, muab kev ruaj khov thiab siab dua - cov ntaub ntawv txhawb nqa kev ua tau zoo. Qhov no yog qhov tseem ceeb hauv kev ua kom muaj kev nyab xeeb ntawm cov khoom siv thiab kev pab lub neej ntawm cov nkoj.
Yog li ntawd, raw fiber ntau kom qhuav tsis yog ib qho yooj yim lub cev qhuav dej cov kauj ruam, tab sis ib tug tseem ceeb txheej txheem uas txhim khu tag nrho cov kev ua tau zoo ntawm fiberglass roving cov khoom thiab xyuas kom meej lawv tseem ceeb heev lub luag hauj lwm nyob rau hauv cov ntaub ntawv sib xyaw. Nws qhov cuam tshuam rau qhov kawg khoom zoo permeates tag nrho cov saw hlau ntau lawm thiab thaum kawg tshwm sim nyob rau hauv kev ntseeg tau thiab kav ntev ntawm qhov kawg - siv daim ntawv thov.
