Iav ntaub plaub yog qhov khoom pheej yig thiab ua tau zoo rwb thaiv tsev. Hais txog kev muaj koob meej, nws yog thib ob rau pob zeb hauv av tsiaj thiab ua npuas ncauj. Iav ntaub plaub txiag yog cov ntev dua li lwm cov khoom siv fiber ntau. Cov yam ntxwv no vim yog tsim qauv tsim.
Cov iav iav siv, niaj hnub no ua cov rwb thaiv tsev thermal, nws txawv ntawm cov khoom lag luam zoo sib xws uas tau siv los ua cov kab thaiv kab thiab tsev nyob hauv lub xyoo pua xeem. Ntawd iav ntaub plaub tau tsim los ntawm tawg iav, tam sim no ib qho - los ntawm quartz xuab zeb. Yog li ntawd, cov ntaub ntawv no sib txawv ob qho tib si hauv lub ntsej muag thiab hauv cov khoom.
Dab tsi yog iav ntaub plaub ua los ntawm?
Cov muaj pes tsawg leeg ntawm cov iav niaj hnub suav nrog limestone, dej qab zib, ethybor (lwm lub npe yog borax), dolomite. Lub xub ntiag ntawm borax muab ib qho kev cuam tshuam rau nas, ntsaum thiab kab laum. Sij hawm dhau los, phenols thiab formaldehyde tau ntxiv rau hauv iav ntaub ntawv txheej txheem los khaws cov fibers. Niaj hnub no lawv raug cais tawm hauv cov npe ntawm cov pov npav, raws li nws tau paub tias cov tshuaj no muaj kev cuam tshuam tsis zoo rau tib neeg kev noj qab haus huv.
Iav ntaub plaub ua li cas?
Iav ntaub plaub yog cov khoom siv fibrous rau uas sib txawv raw khoom siv. Feem ntau nws yog quartz xuab zeb, tab sis muaj thev naus laus zis rau kev ua cov khoom no los ntawm kaolin, iav kev lag luam pov tseg, graphite.
Cov qauv ntawm tau txais iav ntaub plaub yog spunbond tshuab. Vim qhov no, cov fibers ntawm lub rwb thaiv tsev nyob ntev thiab tsawg dua ob zaug tuab (16-20 microns) dua li ntawm cov ntxhia, pob zeb lossis basalt plaub. Cov yam ntxwv no ua rau iav ntaub plaub zoo tshaj plaws elastic thiab vibration-resistant khoom ntawm txhua yam fiber ntau rwb thaiv tsev ntaub. Tag nrho cov no ua ke nrog qhov hnyav nyhav ua rau cov khoom siv no yooj yim rau nruab, ruaj thiab siv tau zoo.
Cov txheej txheem iav wool ntau lawm yog li hauv qab no: quartz xuab zeb (tawg iav, graphite) yog yaj rau qhov kub txog 1000 ° C, dej qab zib, borax thiab lwm cov khoom siv tau ntxiv, thiab muab tso rau hauv cov centrifuge tshwj xeeb. Thaum nws pib tig, ntev, cov nyias nyias tau tsim nyob hauv kev cuam tshuam ntawm lub zog centrifugal. Lawv raug kho nrog ib qho tshuaj aldehyde-polymer sib xyaw, uas muab lawv cov qauv muaj zog dua.
Raws li qhov ua tiav ntawm cov txheej txheem no, cov khoom siv tau txais los ntawm ntau ntawm cov tawv nqaij kom nruj kom ntom ntuag. Tab sis txawm tias qhov no, iav ntaub plaub yog qhov tseem ywj thiab ua kom nws cov duab zoo. Lub zog ntawm cov fibers yog 20-25 MPa. Lub thermal conductivity ntawm cov khoom yog 0.03-0.052 W / mK. Kub tiv thaiv - 450 nC.
Cov khoom fiberglass tuaj yeem ua kom nruj lossis semi-txhav. Lawv raug siv rau hauv kev tsim kho rau kev ntxig ntau cov qauv thiab cov raj xa dej. Cov tsim tawm loj tshaj plaws ntawm iav ntaub plaub yog Fleiderer (Chudovo, Russia) thiab Isover (Finland).
