Mastic BPM-3 le BPM-4. Motsoako oa thepa
Tse ka hare
Thepa le likarolo tse ntle tsa mastics ea rabara-bitumen
Mastic, e lokiselitsoeng motheong oa rabara le sekontiri, ke seaparo se nang le karolo e le 'ngoe, e leng tšitiso e ke keng ea qojoa ea mongobo. E etsa lera le tsoelang pele leo ho lona, ho sa tsotellehe ho fetoha ha mocheso ka ntle, puso e tsitsitseng ea mocheso e bolokiloe, e leng ho fokotsang haholo mekhoa ea ho senya le ho bola ha thepa ea tšepe.
Rubber-bitumen mastics ke ea sehlopha sa seo ho thoeng ke "bata" mastics, e sebelisoang likarolong tse tiisitsoeng tsa koloi ka mor'a ho futhumatsa, empa ka mocheso oa kamore (ho futhumatsa ho reretsoe ho fokotsa hanyenyane feela sebopeho sa sebopeho, bakeng sa boiketlo. ea ho sebetsa le eona). Ho phaella moo, e 'ngoe le e' ngoe ea likarolo e etsa mesebetsi e hlalositsoeng ka thata. Rabara e eketsa elasticity ea mastic le ho hanyetsa ha eona ho kobeha ha ho otla ka matla kapa ho thothomela, 'me sekontiri se kenya letsoho ho hydrophobicity ea mastic le ho hanyetsa ha eona libakeng tse mabifi tsa lik'hemik'hale (acids le alkalis).
Ho tloha ka nako leha e le efe ea motheo ea bituminous ka nako e telele 'me e lahleheloa ke elasticity ea eona, metsoako ea polymeric e kenngoa ho mastic, e leng ho eketsang ntlha ea ho nolofatsa. Sena sea hlokahala bakeng sa ho sebelisa letoto la BPM letoto la rabara-bitumen mastics selemo ho pota.
Litšobotsi tsa ts'ebetso ea lipina tse ntseng li nahanoa:
| Letšoao la mastic | Mocheso o bonolo, ° С | Elongation polasetiki, mm | Ho lelefala ho leka-lekaneng qalong ea ho petsoha,% | Mocheso oa kopo, ° С |
| BPM-3 | 50 | 3 ... 5 | 60 | 10 ... 30 |
| BPM-4 | 60 | 4 ... 8 | 100 | 5 ... 30 |
Mastic BPM-3
Mastic BPM-3Ha e sebelisoa holim'a tšepe ea koloi, sebopeho se etsa mesebetsi e latelang:
- E sireletsa tšepe hore e se ke ea bola.
- E fokotsa molumo oa lerata ka har'a cabin.
- E etsa tšireletso ea mechine ea tlase ho tloha matsoai a sa tšoaneng, lejoe le pshatlehileng, lehlohlojane.
- E thusa ho fokotsa ho thothomela.
Ho ba teng ha rabara e qhalakantsoeng hantle ka sebopeho ho netefatsa elasticity e lekaneng ea ho roala, e bolokiloeng esita le ka mocheso o tlase (ho fihlela -15 ... -200C).
Lipina tsa Aluminosilicate li kenngoa ka har'a mastic ea BPM-3, boteng ba eona bo sireletsang likarolo tsa 'mele tse ka ntle ho meroalo e matla. Ka nako e ts'oanang, ho hanyetsa ho apara ka mechine ho ntlafatsoa. Karolo ea bituminous e kenya letsoho ts'ebetsong e hlokahalang ea ho roala le ho fokotsa sebaka sa libaka tse sa lefelloeng.
Mastic e ka tuka, kahoo ho kgothaletswa ho sebetsa le yona dibakeng tse nang le moya o hlwekileng, hole le mehlodi ya lelakabe le bulehileng. Pele o sebelisa mastic e futhumetse ka ho hlapa metsi kapa ka kamoreng e futhumetseng. Sebopeho se se se loketse ho sebelisoa ha e le boima ba homogeneous viscous sticky ea 'mala o motšo.
Mastic BPM-4
BPM-4 ke foromo e ntlafalitsoeng ea BPM-3 mastic. Ka ho khetheha, ho na le likarolo tse eketsang modulus ea elasticity ea thepa, e nang le phello e ntle ho tšoarella ha ho roala.
Ntle le moo, mastic ea BPM-4 rabara-bitumen e tšoauoa ka:
- Ho ba teng ha oli ea petroleum e nang le amine, e fanang ka phello e eketsehileng khahlanong le kutu e tšoarellang nako e telele.
- Ho eketseha ha elasticity ea sebaka se tšoaroang, se bohlokoa haholo bakeng sa likoloi tse tsamaisoang litseleng tse mpe.
- Ho eketsa botsoalle ba tikoloho nakong ea tšebeliso, kaha ha e na likarolo tse halefisang tsamaiso ea ho hema.
Mekhahlelo e setseng ea ts'ebetso e lumellana le bokhoni ba mastic BPM-3.
Ho hlahisa rabara-sekontiri sa mastics limaraka tsa BPM-3 le BPM-4 li etsoa ho latela litlhoko tsa tekheniki tsa GOST 30693-2000.
Tlhahlobo ea Botho
Litlhahlobo tse ngata li bontša likarolo tse latelang tsa tšebeliso ea mefuta ena ea mastic:
- Takatso ea ho sebelisa li-thiners, kaha boemong ba pele (esita le ka mor'a ho nolofatsa mocheso) ho thata ho sebelisa mastics, haholo-holo holim'a libaka tse nang le tlhophiso e rarahaneng. Kalosh ea peterole, parafine, toluene li khothaletsoa e le metsoako ea diluting. Leha ho le joalo, palo eohle ea ba mosesaane ha ea lokela ho feta 15% ea molumo oa pele oa mastic.
- Litlhahlobo tse ling li hlokomela 'nete ea botsofali ba' mele oa ho roala ho tšoaroa ka BPM-3, eo beng ba likoloi ba nang le bothata ka ho kenya li-plasticizers ka mastic. Boemong bona, o ka sebelisa oli ea enjene e tlhotliloeng.
- Ha e bapisoa le BPM-3, BPM-4 mastic e ka sebelisoa ka lera le le leng, empa pele ho moo e kgothaletswa ho hloekisa ka ho feletseng le ho senya bokaholimo, hammoho le ho sebelisa primer e nang le phosphate.
- Ho fapana le lihlahisoa tse ling tse tšoanang - ka mohlala, li-anticorrosive tsa Kordon - mastics ea Nizhny Novgorod ha e phatlohe ka mocheso o tlaase.
Basebelisi ba boetse ba nka "botsoalle" ba lipina ka bobeli e le tšobotsi e ntle, e lumellang tšebeliso ea lihlahisoa tse ling tsa lihlahisoa tse tšoanang.
