iav fiber ntau hluav taws daim pam, siab silicon oxygen hluav taws daim pam, carbon fiber hluav taws daim pam, ceramic fiber ntau hluav taws pam
Daim pam hluav taws los yog hu ua hluav taws kub, hluav taws kub, pam hluav taws, pam hluav taws, pam hluav taws, pam tawm.
Raws li cov khoom siv hauv paus kev faib tawm: vim yog cov ntaub ntawv sib txawv, cov khoom npe yog raws li hauv qab no paj rwb hluav taws daim pam, asbestos hluav taws daim pam, iav fiber ntau hluav taws daim pam, siab silicon oxygen hluav taws pam, carbon fiber hluav taws pam, ceramic fiber hluav taws daim pam thiab thiaj li. ntawm.
Kev faib tawm los ntawm kev siv: daim pam hluav taws hauv tsev, daim pam hluav taws muaj.
Nws yog ib qho zoo tagnrho thiab zoo txheej tiv thaiv rau tib neeg thiab tej yam uas yuav tsum tau khaws cia kom deb ntawm lub tshav kub ntawm lub cev, thiab nws yog heev yooj yim mus qhwv lub uneven nto ntawm cov khoom, cov lag luam, khw, nkoj, tsheb, pej xeem vaj tse nyob rau hauv ib tug cov cuab yeej tua hluav taws yooj yim, tshwj xeeb tshaj yog tsim rau cov chav ua noj hauv tsev, tsev so, chaw lom zem, chaw nres tsheb roj thiab lwm yam yooj yim rau kev ntes hluav taws, tiv thaiv kev sib kis ntawm hluav taws.
Nws yog qhov zoo tshaj plaws thiab zoo tshaj plaws tiv thaiv txheej txheej rau tib neeg thiab cov khoom uas yuav tsum tau khaws cia kom deb ntawm qhov chaw sov, thiab nws yooj yim heev los npog cov khoom uas tsis sib xws.
Nyob rau hauv rooj plaub uas tsis muaj kev puas tsuaj tuaj yeem rov qab siv dua, piv nrog hom dej hauv paus, qhuav hmoov hom hluav taws tua hluav taws:
1. Tsis muaj sijhawm tas sijhawm;
2. Nws yuav tsis tsim cov pa phem thib ob tom qab siv;
3. Rwb thaiv tsev thiab kub tsis kam;
4. Yooj yim nqa, yooj yim configuration, tuaj yeem siv tau sai, tsis muaj kev puas tsuaj tuaj yeem rov qab siv dua.
Txij li thaum daim pam yog ib qho khoom siv hluav taws kub zoo heev, nws tuaj yeem siv los tua hluav taws ntawm qhov ceev tshaj plaws hauv qhov pib ntawm qhov hluav taws kub.
Txhawm rau tswj kev sib kis ntawm kev puas tsuaj, nws tseem tuaj yeem siv los ua cov khoom tiv thaiv kev khiav tawm raws sijhawm.Ntev npaum li daim pam qhwv tag nrho lub cev, vim tias daim pam nws tus kheej muaj kev tiv thaiv hluav taws.
Cov yam ntxwv ntawm rwb thaiv tsev kub, nyob rau hauv txoj kev khiav, tib neeg lub cev tuaj yeem tiv thaiv tau zoo.
Tsis-combustible, kub tsis kam (550 ~ 1100 ℃), mos zoo nkauj, du, nruj, thiab tsis nkoos daim tawv nqaij, yuav tsum tau nyob deb ntawm lub tshav kub qhov chaw lub cev, yog ib tug zoo tagnrho thiab zoo txheej txheej tiv thaiv, thiab yooj yim heev. txhawm rau qhwv lub npoo ntawm cov khoom tsis sib xws, yog tias tsis muaj kev puas tsuaj tuaj yeem rov qab siv dua.
Npog qhov hluav taws kub thiab thaiv huab cua kom ua tiav lub hom phiaj ntawm kev tua hluav taws.age tuaj yeem rov siv dua.
1. Thaum muaj hluav taws kub, daim pam tawm ntawm qhov hluav taws kub ntawm lawv lub cev lossis qhwv lub cev ntawm cov khoom cawm siav, kom ceev nrooj tawm ntawm qhov hluav taws kub, rau kev cawm tus kheej lossis kev khiav tawm ntawm tib neeg kom muaj kev pab zoo.Yog tias muaj hluav taws kub hnyiab, koj tuaj yeem tso rau ntawm daim pam hluav taws, nws tuaj yeem txo qhov kev pheej hmoo ntawm kev kub hnyiab.
2. Cov lag luam, khw muag khoom, nkoj, tsheb, pej xeem vaj tse thiab lwm lub sijhawm ntawm cov cuab yeej siv hluav taws xob pib yooj yim.
Daim pam hluav taws yog ua los ntawm fiber ntau - zoo li cov khoom siv refractory.Refractory fiber muaj cov yam ntxwv ntawm cov fiber ntau, xws li mos, elastic, ib qho tensile lub zog, nws tuaj yeem ua tiav rau hauv ntau hom ntawv, kab, hlua, siv, daim pam thiab cov khoom siv;Nws kuj muaj qhov kub thiab txias tsis kam thiab corrosion kuj uas cov fiber ntau tsis muaj.Raws li cov khoom siv hluav taws xob refractory, tau siv dav hauv metallurgy, tshuaj lom neeg kev lag luam, tshuab, khoom siv hauv tsev, nkoj tsim, aviation, aerospace thiab lwm yam kev lag luam.
Refractory fiber yog muab faib ua amorphous (iav) thiab polycrystalline (crystallized) ob pawg.Amorphous refractory fibers, suav nrog txhuas silicate, siab purity aluminium silicate, chromium muaj aluminium silicate thiab siab aluminium refractory fibers.Polycrystalline refractory fibers, xws li mullite, alumina thiab zirconia.(Table 1) Kuj tseem muaj cais raws li qhov siab tshaj plaws kev pab cuam qhov kub thiab txias ntawm refractory fiber ntau.
Refractory fiber ntau yog cov khoom siv hluav taws xob zoo infrared, nrog cov thermal muaj peev xwm thiab cov cua sov infrared, siv cov khoom siv hluav taws xob refractory tuaj yeem txuag hluav taws xob, yog cov khoom siv hluav taws xob zoo tshaj plaws thiab cov khoom siv hluav taws xob.Kev xyaum ntau lawm tau ua pov thawj tias daim ntawv thov ntawm refractory fiber nyob rau hauv tas li cua sov industrial furnace yuav txuag tau ntau tshaj 15% zog, siv nyob rau hauv intermittent industrial cua sov rauv yuav txuag tau ntau tshaj 30% lub zog, tib lub sij hawm yuav txhim kho productivity thiab txhim kho cov khoom zoo, ua tiav. lub teeb thiab loj scale furnace qauv, kev ua tau zoo yog zoo.Refractory fiber ntau mos, zoo elasticity, los yog zoo tagnrho sealing khoom, vim hais tias ntawm rwb thaiv tsev, suab nrov txo, oxidation kuj, roj kuj thiab dej kuj, yooj yim siv, yog li nyob rau hauv metallurgy, tsev cov ntaub ntawv, roj av, tshuaj lom neeg kev lag luam, shipbuilding, hluav taws xob fais fab, aerospace. thiab lwm yam kev siv dav.
Polycrystalline refractory fiber yog ib yam tshiab kub rwb thaiv tsev cov ntaub ntawv tsim tom qab amorphous refractory fiber nyob rau hauv thaum ntxov 1970s.Nws yog tsuas yog siv nyob rau hauv kub kub qhov chaw ua hauj lwm kub siab tshaj 1400 ℃.Nws tuaj yeem txuag hluav taws xob los ntawm 25% ~ 40%.Polycrystalline refractory fiber kuj tseem siv tau los ua cov khoom siv sib xyaw thiab cov khoom siv hluav taws xob, thiab cov ntaub ntawv siv tau zoo.Polycrystalline refractory fiber kuj tseem siv tau rau hauv thaj chaw ntawm aerospace missiles thiab atomic zog.Tam sim no, lub ntsiab polycrystalline refractory fibers tsim thiab siv nyob rau hauv lub ntiaj teb no yog polycrystalline alumina fibers (Al2O380% ~ 90%, SiO221% ~ 20%), polycrystalline mullite fibers (Al2O372% ~ 79%, SiO221% ~ 28%) thiab polycrystalline Zirconia fibers (ZrO292%, Y2O38%).
