Asbestos Cardboard. Khoom Thiab Daim Ntawv Thov.

Nyob rau hauv industrial technology ntawm peb lub teb chaws, cov ntaub ntawv asbestos thiab asbestos tau pom daim ntawv thov dav. Asbestos yog cais raws li cov ntaub ntawv zoo nkauj, thiab cov lus Greek, lo lus "asbestos" txhais tias "tsis tuaj yeem", "tsis tsim nyog." Yam ntxwv tseem ceeb tshaj plaws ntawm asbestos thiab asbestos cov khoom yog lawv cov hluav taws tsis kam, uas ua rau nws tuaj yeem siv lawv nyob rau hauv cov ntaub ntawv uas nws yog qhov tsim nyog yuav tau nrhiav kev sib txuam ntawm cov ntaub ntawv thiab cov hluav taws. Feem ntau, asbestos yog siv los ua ib qho khoom siv raw hauv qhov siv cov nplaim hluav taws kub, daim duab los qhia.

Asbestos board siv nyob rau hauv lub engineering kev lag luam, raws li tau zoo raws li ib tug hluav taws-retardant khoom nyob rau hauv kev rho tawm cia tso tsheb hlau luam ntawm cov kua. Nws yog ib qho hluav taws xob thaiv cov khoom uas tau ua los ntawm asbestos. Qhov loj kom zoo ntawm asbestos cardboard yog nws tsis kam mus siab. Nws muaj fibrous chrysotile asbestos tov nrog ib tug binder. Asbestos cardboard muaj txog li 99% ntawm asbestos.

Qhov zoo tshaj plaws ntawm cov yas qoob loo ntawm asbestos yog:

- kev ruaj ntseg tawg thiab kev kub ntawm lub cev, cov khoom siv hluav taws xob muaj kev tiv thaiv thaum kub txog 500 ° C;

- qhov muaj zog txaus, thiab thaum deformation vim kev txiav txim txhua yam, qhov hluav taws xob thaiv cov khoom raug khaws cia;

- Tsis tas yuav tsum hloov ntau heev vim kev ua haujlwm;

- yooj yim ntawm kev siv.

Asbestos board nkag tau rau hauv nplooj ntawv ntawm 800 X 1000 hli nyob rau hauv thickness ntawm 2 mus rau 10 mm.

Thoob plaws nyob rau hauv lub lag luam kuj tau txais asbestos daim ntaub, asbestos cords, packings - tag nrho cov ntaub ntawv uas ua los ntawm asbestos. Asbestos kuj yog siv nyob rau hauv qhov siv thiab ua ntau yam tsis sib haum xeeb ntaub ntawv siv nyob rau hauv qhov siv thiab ua cov nres pawm no ntau npau rau cov tsheb.

Nws yuav tsum nco ntsoov tias asbestos tau muab faib ua ob peb hom, qee cov hom phom tuaj yeem tsim kev puas tsuaj rau tib neeg kev noj qab haus huv. Rau cov phom sij phem muaj xws li anthophyllite, amosite, tremolite, koom ua ke los ntawm ib lub npe zoo - amphiboles. Asbestos fibers muaj rau cov hom no yog co txhav thiab muaj cov tsos ntawm ntse koob. Nyob rau tib lub sij hawm, chrysotile asbestos, muaj ib tug mos mos elastic fiber, thiab lub koob yog sufficiently zoo rau tib neeg cov ntaub ntawv. Yog vim li cas rau qhov txaus ntshai ntawm amphibole asbestos cov ntaub ntawv kuj yog lawv cov acid tsis kam, piv txwv li, mus rau hauv tib neeg lub ntsws, lawv cov suab tsis tshem tawm ntawm lub cev. Conversely, chrysotile asbestos fibres yooj yim decompose nyob rau hauv qhov kev txiav txim ntawm qaug zog acids thiab tshem tawm ntawm lub cev.

Nyob rau hauv cov xwm, asbestos lies ntawm ntiav qhov tob, yog li nws yog mined los qhib qhov tsua mining. Ib tug neeg sim nrhiav ib qho kev hloov rau asbestos vim nws qhov txaus ntshai nyob rau hauv kev siv, tab sis tam sim no ces tsuas yog cov khoom siv nrog ib co ntawm cov xeeb ceem, tsuas yog kev ua haujlwm asbestos.

Asbestos yog yuav tsum tau ua raws li GOST 12871-93, raws li uas cov asbestos faib ua 8 pawg raws li cov khoom me me. Lub labeling ntawm asbestos nyob rau hauv raws li GOST yuav tsum qhia lub npe ntawm cov khw, hom, qhov hnyav thiab asbestos batch tooj, hnub siv thiab ua thiab cov lus ceeb toom thiab kev nyab xeeb tej yam tshwm sim yam khoom.

Chrysotile asbestos yog fej nyob rau hauv daim ntawv los yog hluavtaws hnab, uas yuav tsum tau lees tias kev ruaj ntseg ntawm asbestos thoob plaws hauv lub warranty lub sij hawm ntawm cia.