Ama-asbestos amashidi angawasebenzisa kuphi?

Ama-asbestos amashidi akhiwa kusuka ku-asbestos ka-chrysotile, ebizwa ngokuthi i-magnesium hydrosilicate futhi ivela eqenjini lama-silicates alayishiwe. Le mineral ibekezelela kahle imithombo ye-alkaline, kodwa idiliza ngama-acids ngokubunjwa kwe-silica amorphous order. Izindleko ezinkulu zalesi sici zikhona eCanada, eRussia (i-Kiembaevskoe neBazhenovskoe ibeka ema-Urals), eChina. Indawo ehamba phambili emtongweni wezinto ezibonakalayo ezikhishwe kungokwalabo ezweni lethu.

Izinzuzo kanye nokuqeda imikhiqizo ye-asbestos

Ngokuyinhloko, amashidi e-asbestos amanye ama-athikili aqukethe amafayili afaka ukuqhutshwa kwamandla kagesi aphansi (afanele ukugxila), ukumelana nokushisa okuphezulu, ukungena emithonjeni eminingi yamakhemikhali, i-ozone, i-oxygen. Lezi zinto ziyakwazi ukumelana nokushisa (ukushisa okushisa kunamazinga angu-1400-1500), kubophezela kahle kwezinye izithako. Ukulimala okuphawulekayo kwalokhu kutholakala ukuthi uthuli lwama-asbestos lungaba i-carcinogenic uma lingena endleleni yokuphefumula. Ngakho-ke, uhla olugcwele lwezinyathelo zokuvikela abasebenzi kumele luqaliswe ekukhiqizeni imikhiqizo ye-asbestos.

Uma wenza imisebenzi (ukuphahla, ukushisa ukushisa nokunye), lapho kuhileleka khona amashidi e-asbestos, lokhu kubhekwa njengokuphephile, ngoba kwimikhiqizo eqediwe ifomu lokuboshwa (ngamafutha, bitumen, resins, i-rubber, i-gypsum). Noma kunjalo, amazwe amaningi akhetha ukuyeka ngokuphelele ukusetshenziswa kwalezo zakhi. Ngokuyinhloko, kwi-European Union izingxenye ze-asbestos zivinjelwe ngokuphelele kusukela ngo-2005, kodwa emhlabeni wonke zisetshenziselwa izimboni eziningi.

I-Asbestos ayisetshenzisiwe ngendlela yayo ehlanzekile

Ama-asbestos amashidi akhiwa ngokuhlanganisa ama-asbestos fibers noma izakhi nezinye izinto. Isibonelo, izihloko ze-asbestos, ezikhishwe ngokuhambisana namaGOST no-12586-84 no-12856-96, zenziwe ngohlaka lwentambo (i-perforated), lapho izinhlangothi zombili ziboshwe ngephepha le-asbolatex elinesigcawu se-graphite esekelwe kuma- rubber synthetic. Zisetshenziswa ku-carburetor noma i-diesel izinjini njengezitshalo zesayizi ethile. Imikhiqizo enjalo imelana nezinguquko zokushisa kusuka kokungu-60 ukuya ku-400, ukuphulukisa kahle ngemva kokucindezela, ukumelana nemiphumela yephethiloli, imikhiqizo yomlilo, i-diesel fuel.

Ikhabhobhodi ye-asbestos isetshenziswa ezimbonini eziningi

Kuphi ukuthenga ishidi le-asbestos ukuze lisetshenziswe ku -metallurgy evuma futhi engekho ferrous? Izinto ezinjalo (amakhadibhodi asekelwe kuma-chrysolite fibers) athengiswa ngezitolo zokwakha. It has marking "KTM" futhi ikhiqizwa ngokuhambisana GOST 2850 - 95. Ukukhishwa kwekhadibhodi kufanelekile eziningana zokusebenza kwezobunjiniyela, ubunjiniyela, izimoto (for gaskets in silencers). Ngokuhambisana nomqulu ofanayo, i-KAON ikhiqizwa (isifingqo se-"general-purpose cardboard asbestos"), esingasetshenziselwa ukufaka ukushisa okushisayo kumazinga aphezulu okushisa (kufika kuma-degree angama-500), izigxobo zokuxhuma ezinsimbi ezisetshenziswa ku-gas, alkaline, media media.

Kubiza kangakanani ishidi le-asbestos? Intengo yomkhiqizo incike kohlobo lwayo. Isibonelo, ishidi le-asbestos lefomethi encane (0.67 x 0.51 amamitha) lizobiza umthengi cishe ama-ruble angu-550-580. Futhi izihloko ezivela ochungechungeni lwamakhadibhodi ezinesayizi ka-1.0 x 0.8 amamitha zizobiza cishe ama-ruble angu-400-420.