Qhov twg asbestos los xij yuav siv tau?

Asbestos los xij ua los ntawm chrysotile asbestos uas yog ib tug magnesium silicate thiab belongs rau cov pab pawg neeg ntawm phyllosilicates. Qhov no mineral tolerates alkaline ib puag ncig, tab sis decomposes nyob rau hauv acid tsim ib qho amorphous silica-order. Loj deposits ntawm no lub caij no nyob rau hauv Canada, Russia (Kiembaevskoe thiab Bazhenov deposit nyob rau hauv lub Urals), Tuam Tshoj. Ib tug ua txoj hauj lwm nyob rau hauv cov nqe lus ntawm lub rho raw khoom belongs rau peb lub teb chaws.

Pros thiab cons ntawm asbestos khoom

Yeej asbestos los xij Ib txhia cov khoom muaj fibers uas muaj ib tug uas tsis muaj conductivity (haum rau kev rho tawm), kub siab kuj, inertness rau feem ntau cov tshuaj, ozone, oxygen. Thaum tshav kub kub resistant khoom (melting kub yog nyob rau hauv ntau 1400-1500 degrees) uake zoo nrog rau lwm cov khoom xyaw. Ib tug tseem ceeb drawback ntawm no cov ntaub ntawv uas yog tias thaum twg nqus tau cov pa asbestos hmoov av tej zaum yuav carcinogenic. Yog li ntawd, nyob rau hauv qhov siv thiab ua asbestos khoom yuav tsum muab los siv rau ib tug tag nrho cov ntau yam ntawm zog tiv thaiv kev ntsuas.

Thaum nqa tawm (vuas vov tsev, Thaum tshav kub kub rwb thaiv tsev, lwm yam), uas muaj asbestos los xij, qhov no cov ntaub ntawv uas yog suav tias yog muaj kev ruaj ntseg, txij li thaum cov khoom tiav nws yog nyob rau hauv ib tug ua txhua yam daim ntawv (nrog roj, bitumen, resins, roj hmab, plaster). Txawm li cas los, ntau lub teb chaws xav kiag li tso tseg kev siv ntawm tej cheebtsam. Nyob rau hauv kev, nyob rau hauv cov European Union, asbestos Cheebtsam kiag txwv txij li thaum 2005, tab sis nyob rau hauv lub so ntawm lub ntiaj teb no yog siv nyob rau hauv ntau industries.

Asbestos nyob rau hauv nws cov ntshiab daim ntawv tsis thov

Asbestos nplooj ntawv yog ua los ntawm ib tug ua ke ntawm asbestos fibers los yog ntsiab nrog rau lwm cov ntaub ntawv. Piv txwv li, cov khoom asbostalnye muab raws li GOST 12856-96 thiab №№ 12586-84, ua los ntawm cov hlau ncej (perforated) los ua uas yog muaj ntaub ntawv rau ob tog ntawm daim ntawv nrog asbolateksnaya graphite nto raws li hluavtaws rubbers. Lawv yog siv nyob rau hauv roj los yog diesel xyaw li taub txuas me me. Tej khoom no yuav mas kub hloov los ntawm Rho tawm 60 mus rau ntxiv rau 400, zoo tu qab tso tom qab lub compression, mas tej yam uas roj av, combustion khoom, diesel roj.

Asbestos duab los qhia siv nyob rau hauv ntau industries

Qhov twg mus yuav ib tug asbestos ntawv rau kev siv nyob rau hauv ferrous thiab uas tsis yog-ferrous co? Tej ntaub ntawv (raws li chrysolite fiber board) yog pom tau hais los ntawm kho vajtse khw muag khoom noj. Nws yog cim "KTM" thiab ua nyob rau hauv raws li cov GOST № 2850 - 95. Paperboard qib thermal rwb thaiv tsev haum mus rau ib tug series ntawm kev ua hauj lwm nyob rau hauv lub zog, mechanical engineering, automotive kev lag luam (rau gaskets nyob rau hauv silencers). Raws li, qhov tib daim ntawv ua Cass (tsiaj ntawv ntawm "cov hom phiaj kev asbestos duab los qhia"), uas yuav siv tau rau thermal rwb thaiv tsev sov siab (txog li 500 degrees), lub sealing pab kiag li lawm nyob rau hauv lub tebchaw ua hauj lwm nyob rau hauv cov roj, alkali, organic xov xwm.

Yuav ua li cas Asbestos ntawv txoj kev? Tus nqi ntawm cov khoom nyob rau hauv nws cov hom. Piv txwv li, asbostalnoy ntawv ntawm loj me me (0.67 x 0,51 meters) yuav raug nqi nyob rau hauv tus nqi ntawm txog 550-580 rubles. Ib tug series ntawm cov khoom los ntawm cov cartons nrog qhov ntev 1.0 x 0.8 meters yuav raug nqi txog 400-420 rubles.