Qhov nrov ntawm cov ntxhia wool feem ntau yog vim lawv cov nqi qis thiab kev ua haujlwm zoo heev. Cov khoom siv no tuaj yeem siv los thaiv ntau yam qauv - phab ntsa, ru tsev thiab cov plag tsev ntawm cov tsev ntiag tug, cov kav dej, cov khoom siv cua sov, thiab lwm yam.
txheej txheem tsim
Raws li cov khoom siv raw hauv kev tsim cov khoom xws li cov ntxhia wool slabs, yaj ntawm pob zeb volcanic, iav thiab blast-kuav slag yog siv. Cov khoom kub kub no yog pub rau hauv ib qho tshwj xeeb centrifuge, nyob rau hauv uas (raws li qhov tshwm sim ntawm tshuab cua) nws hloov mus rau hauv ib tug fibrous loj. Tom ntej no, binders tau nkag rau hauv nws. Feem ntau phenol-formaldehyde resins ua haujlwm hauv lawv lub luag haujlwm. Tom ntej no, nplaum "paj rwb" nkag mus rau hauv cov chais, uas tsim ib txheej txawm los ntawm nws. Thaum kawg, cov khoom raug txiav rau hauv cov nplais ntawm qhov xav tau loj.
Ntau cov ntaub plaub fibers tuaj yeem nyob hauv ob qho tib si chaotic thiab perpendicular rau ib leeg. Cov ntawv tshaj tawm ntawm cov khoom hu ua Laminar, muaj qhov siab ceev thiab qib ntawm thermal conductivity, thiab yog tus cwj pwm los ntawm kev nce zog. Qee lub sij hawm cov pob zeb hauv av nplaum yog nplaum rau ntawm ib sab nrog tuab aluminium ntawv nyiaj.
Degreehluav taws tsis kam
Qhov txiaj ntsig tseem ceeb ntawm cov ntaub plaub ntxhia piv rau lwm cov insulators yog nws incombustibility. Nws raug tso cai siv cov khoom no rau qhov chaw sov so, qhov kub ntawm qhov nce mus txog +400 degrees Celsius. Tias yog vim li cas ntxhia ntaub plaub boards yog ib qho zoo tagnrho insulator rau boilers thiab furnaces ntawm ntau yam. Bas alt fibers pib yaj tsuas yog tom qab ob teev raug rau qhov kub ntawm 1000 degrees. Qhov no yog ib daim duab zoo heev. Raws li rau qhov kub thiab txias, cov khoom no tuaj yeem tiv taus 750 degrees yam tsis muaj teeb meem rau nws tus kheej. Cov pab pawg combustibility ntawm cov pob zeb hauv av yog KM0. Hauv cov ntawv ci ntau yam - KM1.
Qib ntawm thermal conductivity
Lub hom phiaj tseem ceeb ntawm cov ntaub plaub tsiaj yog los tiv thaiv tsev, khoom siv thiab kev sib txuas lus los ntawm qhov txias. Qhov tso cai thermal conductivity ntawm cov khoom no yog txiav txim los ntawm GOST 4640-2011. Qhov ntsuas no hloov pauv nyob ntawm qhov ntsuas kub thiab muaj peev xwm ntawm 0.038 W / (mK) ntawm qhov kub ntawm +10 degrees txog 0.070 W / (mK) ntawm +300 degrees. Yog li, nyob rau hauv cov nqe lus ntawm nws lub peev xwm los khaws cov cua sov, cov khoom no tshaj li niaj hnub insulators. Qhov zoo no yog vim cov qauv ntxeem tau nrog ntau qhov chaw huab cua.
Density
Qhov ntsuas no rau cov khoom siv xws li thermal rwb thaiv tsev ntxhia ntaub plaub tuaj yeem hloov pauv tau dav heev (30-220 kg / m 3). Qhov siab dua qhov ceev ntawm lub phaj, ntau dua qhov kev faib khoom nws tuaj yeem ua tautiv taus. Raws li qhov ntsuas no, cov ntaub plaub ntxhia tuaj yeem raug faib ua peb pawg:
- Tsawg ntom (30-50kg / m 3). Cov ntaub plaub zoo li no yog siv los ua kom sov qhov chaw kab rov tav.
- Nruab nrab ntom (60-75kg / m 3). Qhov ntau yam no feem ntau yog siv los cais ntau hom kev tsim qauv.
- High density (80-175kg/m3). Cov boards no tuaj yeem siv los thaiv phab ntsa sab hauv lossis sab nraud.
- High density (180-200kg/m3). Qhov ntau yam no feem ntau yog siv rau lub ru tsev rwb thaiv tsev.
Qhov ntom ntawm cov khoom xws li cov pob zeb hauv cov ntaub plaub yog qhov taw qhia uas txiav txim siab tsuas yog lawv lub peev xwm los tiv thaiv cov khoom thauj. Nws xyaum tsis cuam tshuam rau qib ntawm thermal conductivity.
Tsis tshua muaj kev tiv thaiv rau kev nkag mus rau cov dej noo yog ib qho ntawm ob peb qhov tsis zoo uas cov pob zeb hauv av muaj. GOST txhawm rau txheeb xyuas qhov ua tau raws li cov khoom siv no nrog cov qauv ntawm cov dej tsis kam sau cov kev ntsuas tshwj xeeb. Nyob rau tib lub sijhawm, cov qauv (20-30 grams) raug coj los ntawm ntau qhov chaw ntawm lub phaj. Tom qab ntawd lawv muab tso rau hauv lub khob porcelain thiab calcined ntawm qhov kub ntawm 600 degrees kom tshem tawm cov organic impurities. Tom qab ntawd qhov loj yog hauv av rau hauv cov hmoov, moistened nrog ob peb tee ntawm ethyl cawv, tom qab uas me ntsis hydrochloric acid ntxiv. Tom ntej no, cov electrodes ntawm pH meter yog qis rau hauv lub thawv. Tom qab kaum feeb ntawm stirring, pH ntawm cov tshuaj yog ntsuas. Cov dej tsis kam ntawm cov khoom yog txiav txim los ntawmTus nqi pH nruab nrab.
Cov pob zeb ntxhia pob zeb (GOST txiav txim siab lawv cov dej tsis muaj ntau tshaj 4-7 pH) nqus dej zoo heev, thaum poob qee yam ntawm lawv cov thermal rwb thaiv tsev. Txawm li cas los xij, qhov ntsuas ntawm lawv cov dej noo los ntawm qhov hnyav yuav tsum tsis pub tshaj 1%. Txhawm rau kom cov khoom tiv thaiv kom ya raws, nws yog impregnated nrog cov tshuaj tua kab mob tshwj xeeb.
vapor permeability
Qhov zoo ntawm cov khoom siv xws li cov pob zeb hauv av muaj xws li, ntawm lwm yam, muaj peev xwm hla dej molecules los ntawm. Lub vapor permeability coefficient ntawm ntxhia ntaub plaub yog 48010-6 g / (mhPa). Piv rau lwm lub tshuab cua sov niaj hnub no, qhov no yog qhov siab tshaj plaws.
Fiber Arrangement
Random ntxhia ntaub plaub muaj qhov tshwj xeeb ntawm 120-160 kg / m 3 thiab lub zog tensile ntawm 10 kPa. Qhov ntau yam no feem ntau yog tsim nyob rau hauv slabs 120-160 cm ntev thiab 50-60 cm dav.thiab lub zog rau kev so ntawm 80 kPa. Qhov ntev ntawm cov slabs ntawm no ntau yam yog 120 x 20 cm. Lub thickness ntawm cov ntxhia wool slabs ranges ntawm 30-100 mm.
Ntaus Brands
Feem ntau nyob rau hauv Russia, cov ntxhia ntaub plaub ntawm TechnoNIKOL hom yog siv los insulate cov qauv ntawm cov tsev. Cov chaw tsim khoom no tsim cov khoom zoo heev uas ua tau raws li txhua tus qauv GOST. Ntawm lwm yam, nws undoubtedTus nqi qis yog suav tias yog qhov zoo dua.
Rockwool ntxhia wool boards tsis muaj tsawg nrov. Cov khoom lag luam ntawm cov chaw tsim khoom no tuaj yeem siv rau kev rwb thaiv tsev ntawm cov qauv tsim thiab cov khoom siv fais fab. Bas alt wool ntawm hom no muaj nyob rau hauv ntau qhov ntau thiab tsawg.
siv thaj chaw
Mineral wool boards yog siv rau rwb thaiv tsev:
- genders;
- ventilated facades;
- facades rau plaster;
- ruv;
- phab ntsa los ntawm sab hauv thiab muab faib;
- overlap;
- pipelines;
- cub thiab chimney;
- boilers;
- khoom siv, thiab lwm yam
Mineral wool yog cov rwb thaiv tsev zoo heev thiab txhim khu kev qha. Kev sib xyaw ua ke ntawm kev ua tau zoo nrog tus nqi qis ua rau nws nrov heev nrog ob tus neeg tsim khoom thiab cov tuam txhab lag luam loj.
