Ob xyoos dhau los, tau tsav los ntawm kev hloov kho thev naus laus zis ntawm cov ntaub ntawv tiv thaiv thermal khiav tawm rau cov roj teeb hluav taws xob tshiab, cov neeg siv khoom xav tau kev txhim kho thermal rwb thaiv tsev ua haujlwm nrog rau cov khoom siv hluav taws xob zoo li ablation-cov cuab yeej tseem ceeb rau kev tiv thaiv hluav taws.
Piv txwv li, qee daim ntawv thov yuav tsum muaj cov nplaim taws kub hnyiab ntawm 1200 ° C thaum tswj qhov kub ntawm sab nraub qaum hauv qab 300 ° C. Nyob rau hauv cov ntaub ntawv aerospace, pem hauv ntej-sab acetylene nplaim ablation ntawm 3000 ° C xav tau rov qab-sab kub hauv qab 150 ° C. Tshwj xeeb yog qhov nyuaj yog qhov kev thov siab rau compression kev ua tau zoo nyob rau hauv ceramicized silicone ua npuas ncauj, uas yuav tsum tau ob qho tib si compression teeb thiab zoo heev thermal rwb thaiv tsev tuav ntawm qhov kub thiab txias. Cov ntaub ntawv sib sau ua ke nthuav tawm tshiab thermal rwb thaiv tsev xav tau rau cov thev naus laus zis ceramic.
Cov kev xav tau tshwj xeeb rau kev ua haujlwm (rau kev siv nkaus xwb):
Ua kom sov cov qauv ntawm lub tshuab cua sov raws li qhia hauv qab no. Khaws qhov chaw kub ntawm 600 ± 25 ° C rau 10 feeb. Siv qhov kev ntxhov siab ntawm 0.8 ± 0.05 MPa ntawm qhov ntsuas kub, kom ntseeg tau tias qhov kub ntawm lub nraub qaum qis dua 200 ° C.
Niaj hnub no, peb sau cov ntsiab lus no rau koj siv.
1. Synthetic Calcium Silicate – Thermal Insulation White Filler
Synthetic calcium silicate muaj nyob rau hauv ob hom: ntxeem tau / kheej kheej qauv thiab ceramic-fiber-zoo li fibrous qauv. Txawm hais tias muaj qhov sib txawv ntawm qhov sib txawv thiab morphological, ob qho tib si ua haujlwm zoo tshaj plaws-kub kub resistant thermal rwb thaiv tsev dawb fillers.
Synthetic calcium silicate fiber yog ib puag ncig tus phooj ywg thiabruaj ntseg thermal rwb thaiv tsev cov ntaub ntawvnrog kub-kub tsis kam mus txog 1200-1260 ° C. Tshwj xeeb ua cov khoom siv hluavtaws calcium silicate fiber ntau tuaj yeem ua cov khoom siv fiber ntau rau cov rwb thaiv tsev kub.
Synthetic ntxeem tau los yog spherical calcium silicate, lub caij no, nta siab whiteness, yooj yim ntawm kev koom ua ke, ib tug nplua nuj nanoporous qauv, ultra-high oil absorption values (txog 400 los yog siab dua), thiab kev ywj pheej ntawm slag pob los yog loj hais. Nws muaj pov thawj daim ntawv thov nyob rau hauv high-temperature resistant rwb thaiv tsev thiab fireproof panels, qhia tau hais tias muaj peev xwm rau incorporation rau hauv ceramicized ablation-resistant cov ntaub ntawv los muab high-temperature rwb thaiv tsev.
Lwm daim ntawv thov muaj xws li: hmoov ua kua additives, high-temperature insulating hmoov coatings, naj hoom adsorbent carriers, anti-drip agents, brake pad txhuam cov ntaub ntawv, low-pressure silicone roj hmab thiab self-decomposing silicone roj, ntawv sau, thiab lwm yam.
2. Txheej Porous Magnesium Aluminium Silicate- Thermal rwb thaiv tsev & High-Temperature Resistance
Cov ntxhia silicate no yuav tsum tau kub kub calcination nrog refractoriness txog 1200 ° C. Feem ntau yog tsim los ntawm magnesium aluminium silicate, nws muaj cov txheej txheem nplua nuj txheej ntxeem tau muab kev sib koom ua ke siab zog, dej ua haujlwm zoo, lub sijhawm ntev refractory, thiab tus nqi siab.
Nws cov haujlwm tseem ceeb suav nrog cov rwb thaiv tsev kub kub, txo qhov ntom ntom, txhim kho refractoriness, thiab txhim kho ablation tsis kam thiab thermal rwb thaiv tsev rau cov pa roj carbon txheej thiab casings. Cov ntawv thov suav nrog cov ntaub ntawv rwb thaiv tsev ceramic, cov khoom siv hluav taws xob zoo tshaj plaws, cov ntaub ntawv rwb thaiv tsev refractory, thiab ablation-resistant thermal rwb thaiv tsev cov ntaub ntawv.
3. Ceramic Microspheres - Kub-kub Resistance, Thermal rwb thaiv tsev, Compressive zog
Hollow iav microspheres yog undoubtedly zoo heev thermal rwb thaiv tsev cov ntaub ntawv, tab sis lawv kub kuj tsis txaus. Lawv cov ntsiab lus softening feem ntau yog li ntawm 650-800 ° C, nrog melting kub ntawm 1200-1300 ° C. Qhov no txwv lawv daim ntawv thov rau qhov kub thiab txias thermal rwb thaiv tsev scenarios. Nyob rau hauv qhov kub thiab txias xws li ceramicization thiab ablation tsis kam, lawv ua tsis tau zoo.
Peb hollow ceramic microspheres daws qhov teeb meem no. Feem ntau yog tsim los ntawm aluminosilicate, lawv muaj qhov kub thiab txias tsis kam, zoo thermal rwb thaiv tsev, siab refractoriness, thiab superior puas kuj. Daim ntaub ntawv muaj xws li silicone ceramic additives, refractory rwb thaiv tsev ntaub ntawv, high-temperature additives rau organic resins, thiab high-temperature resistant roj hmab additives. Cov haujlwm tseem ceeb suav nrog aerospace, kev tshawb nrhiav dej hiav txwv tob, cov ntaub ntawv sib xyaw, txheej, rwb thaiv tsev refractory, roj av kev lag luam, thiab cov ntaub ntawv rwb thaiv tsev.
Qhov no yog qhov kub-resistant hollow spherical micropowder uas yooj yim heev rau kev sib koom ua ke (tsis zoo li hollow iav microspheres, uas yuav tsum tau ua ntej dispersion los yog kev hloov kho kom zoo ntxiv) thiab nthuav tawm cov khoom tawg zoo heev. Nws qhov txawv feature yog hais tias nws yog ib tug nto-qhib cov ntaub ntawv uas tsis ntab rau hauv dej, ua rau nws kuj yooj yim rau thicken thiab khom.
Tsis tas li ntawd, ib qho luv luv hais txogairgel hmoov- cov khoom siv hluavtaws porous silica rwb thaiv tsev. Airgel yog dav lees paub tias yog ib qho zoo heev thermal insulator, muaj nyob rau hauv hydrophobic / hydrophilic variants. Qhov no tso cai rau kev xaiv cov kev kho mob tsim nyog raws li cov resin substrates, hais txog airgel hmoov cov teeb meem ntawm ultra-lub teeb yuag dispersion thiab txhim kho nws dispersibility. Dej-raws li airgel pastes kuj muaj rau kev yooj yim koom ua ke rau hauv aqueous systems.
Qhov tshwj xeeb ntxeem tau thermal rwb thaiv tsev cov khoom ntawm airgel hmoov ua rau nws daim ntawv thov nyob rau hauv: - Roj hmab thiab yas additive carriers - Thermal rwb thaiv tsev cov ntaub ntawv rau lub zog tshiab roj teeb - Lub tsev rwb thaiv tsev txheej - thermal rwb thaiv tsev textile fibers - tsev rwb thaiv tsev panels - Fireproof thermal rwb thaiv tsev txheej - thermal rwb thaiv tsev adhesives.
Post lub sij hawm: Sep-22-2025
