xov xwm

Cov iav fiber (lub npe qub hauv lus Askiv: iav fiber lossis fiberglass) yog cov khoom siv inorganic uas tsis yog hlau nrog kev ua tau zoo heev. Nws muaj ntau yam zoo. Qhov zoo yog kev rwb thaiv tsev zoo, tiv taus cua sov zoo, tiv taus corrosion zoo, thiab lub zog kho tshuab siab, tab sis qhov tsis zoo yog nkig thiab tsis hnav tsis kam. Cov iav fiber feem ntau yog siv ua cov khoom siv txhawb nqa hauv cov ntaub ntawv sib xyaw, cov ntaub ntawv rwb thaiv tsev hluav taws xob thiab cov ntaub ntawv rwb thaiv tsev thermal, cov laug cam thiab lwm yam teb ntawm lub teb chaws kev lag luam.

Lub hom phiaj tseem ceeb ntawm Fiberglass Roving yog dab tsi?
Cov xov paj iav fiber feem ntau yog siv ua cov khoom siv rwb thaiv hluav taws xob, cov khoom siv lim dej hauv kev lag luam, tiv thaiv xeb, tiv thaiv dej noo, rwb thaiv cua sov, rwb thaiv suab, cov khoom nqus dej poob siab, thiab kuj tseem siv tau ua cov khoom siv txhawb nqa. Kev siv cov xov paj iav fiber ntau dua li lwm hom fiber los ua cov yas txhawb nqa, cov xov paj iav fiber lossis cov roj hmab txhawb nqa, cov plaster txhawb nqa, cov cement txhawb nqa thiab lwm yam khoom. Cov xov paj iav fiber yog coated nrog cov khoom siv organic los txhim kho nws qhov yooj ywm thiab siv los ua cov ntaub ntim khoom, kev tshuaj ntsuam qhov rai, phab ntsa npog, daim ntaub npog, thiab khaub ncaws tiv thaiv. Thiab cov ntaub ntawv rwb thaiv tsev thiab suab rwb thaiv tsev.

Yuav ua li cas kom paub qhov txawv ntawm Fiberglass Roving?  
Cov iav fiber yog ua los ntawm iav ua cov khoom siv raw thiab ua los ntawm ntau txoj kev molding hauv lub xeev molten. Feem ntau muab faib ua cov iav fiber tas mus li thiab cov iav fiber tsis tas mus li. Hauv kev ua lag luam, ntau cov iav fiber tas mus li siv. Muaj ob yam khoom tseem ceeb ntawm cov iav fiber tas mus li. Ib qho yog cov iav fiber nruab nrab-alkali, code-named C; lwm qhov yog cov iav fiber tsis muaj alkali, code-named E. Qhov sib txawv tseem ceeb ntawm lawv yog cov ntsiab lus ntawm alkali hlau oxides. Cov iav fiber nruab nrab-alkali yog (12 ± 0.5)%, thiab cov iav fiber tsis muaj alkali yog <0.5%. Kuj tseem muaj cov khoom iav fiber tsis yog tus qauv hauv kev ua lag luam. Feem ntau hu ua cov iav fiber alkali siab. Cov ntsiab lus ntawm alkali hlau oxides yog siab dua 14%. Cov khoom siv raw rau kev tsim khoom yog cov iav tiaj tiaj lossis lub raj mis iav tawg. Hom iav fiber no muaj kev tiv thaiv dej tsis zoo, lub zog kho tshuab qis thiab kev rwb thaiv hluav taws xob qis, uas tsis raug tso cai los ntawm cov cai hauv tebchaws.

Cov khoom siv iav fiber uas tsim nyog feem ntau yog cov khoom siv alkaline nruab nrab thiab alkali-free yuav tsum tau qhwv kom nruj rau ntawm lub bobbin, thiab txhua lub bobbin muaj tus lej, tus lej strand thiab qib cim, thiab kev tshuaj xyuas cov khoom yuav tsum tau ua nyob rau hauv lub thawv ntim khoom. Cov ntsiab lus ntawm kev tshuaj xyuas cov khoom suav nrog:
1. Lub npe ntawm tus neeg tsim khoom;
2. Tus lej thiab qib ntawm cov khoom;
3. Tus lej ntawm tus qauv no;
4. Lub cim nrog lub foob tshwj xeeb rau kev tshuaj xyuas zoo;
5. Qhov hnyav tag nrho;
6. Lub thawv ntim khoom yuav tsum muaj lub npe Hoobkas, tus lej khoom thiab qib, tus lej txheem, qhov hnyav tag nrho, hnub tsim khoom thiab tus lej pawg, thiab lwm yam.