Drift bead ke mofuta oa bolo e nang le molora o ka phaphamalang holim'a metsi.E na le 'mala o moputsoa o mosoeu, ka mabota a masesaane le a sekoti, le boima bo bobebe haholo.Boima ba yuniti ke 720kg/m3 (boima), 418.8kg/m3 (leseli), le boholo ba karoloana bo ka bang 0.1mm.Sebaka se koalehile ebile se boreleli, se na le conductivity e tlaase ea mocheso le ho hanyetsa mollo oa ≥ 1610 ℃.Ke mocheso o babatsehang o bolokang mocheso o refractory, o sebelisoang haholo ho hlahisa li-castable tse bobebe le ho cheka oli.Sebopeho sa lik'hemik'hale sa sefaha se phaphametseng haholo-holo ke silicon dioxide le aluminium oxide.E na le litšoaneleho tsa likaroloana tse ntle, tse se nang letho, boima bo bobebe, matla a phahameng, ho hanyetsa ho roala, ho hanyetsa mocheso o phahameng, ho kenya mocheso, ho pata le ho thibela lelakabe.Ke e 'ngoe ea lisebelisoa tse tala tse sebelisoang haholo indastering ea ho hanyetsa mollo.

Drift bead ke mofuta oa bolo e nang le molora o ka phaphamalang holim'a metsi.E na le 'mala o moputsoa o mosoeu, ka mabota a masesaane le a sekoti, le boima bo bobebe haholo.Boima ba yuniti ke 720kg/m3 (boima), 418.8kg/m3 (leseli), le boholo ba karoloana bo ka bang 0.1mm.Sebaka se koalehile ebile se boreleli, se na le conductivity e tlaase ea mocheso le ho hanyetsa mollo oa ≥ 1610 ℃.Ke mocheso o babatsehang o bolokang mocheso o refractory, o sebelisoang haholo ho hlahisa li-castable tse bobebe le ho cheka oli.Sebopeho sa lik'hemik'hale sa sefaha se phaphametseng haholo-holo ke silicon dioxide le aluminium oxide.E na le litšoaneleho tsa likaroloana tse ntle, tse se nang letho, boima bo bobebe, matla a phahameng, ho hanyetsa ho roala, ho hanyetsa mocheso o phahameng, ho kenya mocheso, ho pata le ho thibela lelakabe.Ke e 'ngoe ea lisebelisoa tse tala tse sebelisoang haholo indastering ea ho hanyetsa mollo.

Ts'ebetso e ntle haholo le ts'ebeliso ea lifaha tse phaphametseng

Ho hanyetsa mollo o phahameng.Likarolo tsa mantlha tsa lik'hemik'hale tsa lifaha tse phaphametseng ke li-oxide tsa silicon le aluminium, 'me silicon dioxide e nka karolo ea 50-65% le aluminium trioxide e etsang 25-35%.Hobane ntlha e qhibilihang ea silicon dioxide e holimo ho likhato tse 1725 tsa Celsius, 'me ntlha e qhibilihang ea aluminium oxide ke likhato tse 2050 tsa Celsius, tseo ka bobeli e leng lintho tse phahameng tse refractory.Ka hona, lifaha tse phaphametseng li na le khanyetso e phahameng haholo ea mollo, eo hangata e fihlang ho likhato tse 1600-1700 tsa Celsius, e leng se etsang hore e be lisebelisoa tse ntle tse sebetsang hantle haholo.E bobebe, e sirelelitsoe ebile e koaletsoe.Lerako la lifaha le phaphametseng le tšesaane ebile le sekoti, le na le semi-vacuum ka har'a mokoti le khase e nyane haholo (N2, H2, CO2, joalo-joalo), e bakang mocheso o fokolang haholo le o fokolang haholo.Kahoo lifaha tse phaphametseng ha li bobebe feela (tse nang le boima ba yuniti ea 250-450 lik'hilograma / m3), empa hape li na le ts'ebetso e babatsehang ea ho kenya letsoho le mocheso oa mocheso (o nang le mocheso oa mocheso oa 0.08-0.1 mocheso oa kamore), o behang motheo oa bona. bokhoni bo boholo tšimong ea lisebelisoa tsa ho kenya lisebelisoa tse bobebe.Boima bo phahameng le matla.Kaha sefaha se phaphametseng ke khalase e thata e entsoeng ke silicon aluminium Oxide mineral phase (quartz le mullite), boima ba eona bo ka fihla ho Mohs 6-7, matla a static khatello a ka fihla ho 70-140MPa, 'me boima ba eona ba' nete ke 2.10-2.20g / cm3 , e lekanang le lefika.Ka hona, lifaha tse phaphametseng li na le matla a holimo.Ka kakaretso, lisebelisoa tse bobebe kapa tse se nang letho tse kang Perlite, lejoe le belang, diatomite, pumice, vermiculite e atolositsoeng, joalo-joalo li na le boima bo fokolang le matla.Lihlahisoa tsa ho kenya mocheso kapa lihlahisoa tse bobebe tse entsoeng ka tsona li na le bothata ba matla a fokolang.Bofokoli ba bona ke matla a lifaha tse phaphametseng, tse ba fang monyetla oa tlholisano le mefuta e mengata ea ts'ebeliso.Boholo bo botle ba likaroloana le sebaka se seholo se ikhethileng.Bophahamo ba tlhaho ba lifaha tse phaphametseng bo tloha ho 1 ho isa ho 250 microns.Sebaka se khethehileng sa sebaka ke 300-360cm2 / g, se tšoanang le samente.Ka hona, lifaha tse phaphametseng ha li hloke ho sila 'me li ka sebelisoa ka ho toba.The fineness ka finyella litlhoko tsa lihlahisoa tse sa tšoaneng.Lisebelisoa tse ling tse bobebe tse futhumatsang mocheso hangata li na le boholo bo boholo ba likaroloana (joalo ka Perlite).Haeba li sila, matla a tla eketsoa haholo 'me mocheso oa mocheso o tla fokotseha haholo.Tabeng ena, lifaha tse phaphametseng li na le melemo.Motlakase o motle ka ho fetisisa.Sefaha se phaphametseng ka mor'a ho khetha sefaha sa makenete ke sesebelisoa se khabane se sireletsang se sa tsamaiseng motlakase.Ho hanyetsa ha li-insulators ka kakaretso ho fokotseha ka mocheso o ntseng o eketseha, ha ho hanyetsa ha lifaha tse phaphametseng ho eketseha ka mocheso o ntseng o eketseha.Molemo ona ha o na lisebelisoa tse ling tsa insulation.Kahoo, e ka sebelisoa ho hlahisa lihlahisoa tsa ho pata tlas'a maemo a phahameng a mocheso.