Liphanele tsa sandwich ke karolo ea bohlokoa lits'ebetsong tsa kaho le tsa ho thibela mocheso tsa sejoale-joale. Li na le mekhahlelo e meraro: thepa ea mantlha, hangata e entsoeng ka tšepe, fiberglass kapa thepa e 'ngoe e kopaneng, e kopantsoeng lipakeng tsa mekhahlelo e 'meli ea kantle. Liphanele tsena li fana ka ho thibela mocheso ho hoholo, boima bo bobebe le matla 'me li sebelisoa haholo lits'ebetsong tse kang lifatše tsa kaho, marulelo, li-unit tse sehatsetsing le likoloing tsa lipalangoang.
Lisebelisoa tse tala bakeng sa Liphanele tsa Sandwich
Mealo e ka Ntle (Maqephe a Sefahleho)
Hangata mealo e ka ntle e etsoa ka litšepe tse kang tšepe, aluminium, kapa fiberglass. Lisebelisoa tsena li fana ka botšepehi ba sebopeho, ho hanyetsa boemo ba leholimo le ho tšoarella. Maemong a mang, mealo e ka ntle e ka etsoa ka li-polymer kapa thepa e kopaneng, ho latela litlhoko tsa ts'ebeliso.
Lisebelisoa tsa mantlha
Thepa ea mantlha e bohlokoa bakeng sa ts'ebetso ea ho thibela mocheso ea phanele ea sandwich. Thepa e tloaelehileng e sebelisoang bakeng sa thepa ea mantlha e kenyelletsa:
Foromo ea polyurethane (PU): Foam ea polyurethane e na le litšobotsi tse ntle tsa ho thibela mocheso 'me e sebelisoa hangata liphanele tsa sandwich. Ka karolelano e phahameng ea matla ho ea boima, foam ea polyurethane ke khetho e tsebahalang bakeng sa ho thibela mocheso le tšehetso ea sebopeho.
Foromo ea Polyisocyanurate (PIR): Foam ea PIR ke thepa e 'ngoe ea mantlha e sebetsang hantle e nang le khanyetso e betere ea mocheso ho feta foam e tloaelehileng ea PU. PIR e hlahisoa ke karabelo ea polyol le isocyanate ha ho na le catalyst.
Boea ba diminerale le polystyrene: Tsena di sebediswa le dibakeng tse ding, empa ka kakaretso ha di sebetse hantle haholo ka mocheso ho feta difoam tse thehilweng ho polyurethane.
Mokhoa oa Tlhahiso ea Liphanele tsa Sandwich
Tlhahiso ea liphanele tsa sandwich hangata e kenyelletsa mehato e latelang:
Ho Lokisetsa Thepa ea Bohlokoa
Hangata thepa ea mantlha ke foam, e entsoeng ka motsoako oa li-polyol, li-isocyanate, li-catalyst le li-additives. Foam e ntan'o atolosoa ebe e etsoa maqephe. Bakeng sa li-foam tsa polyisocyanurate (PIR), trimerization ke ea bohlokoa ho fihlela litšobotsi tse lakatsehang tsa ho thibela ho ruruha. Mona ke moo li-catalyst tse kang MXC-TMA li sebetsang teng.
Karolo ea Catalyst: Bohlokoa baMXC-TMA
MXC-TMA ke sesebelisoa sa amine sa tertiary se thusang tlhahisong ea foam ea polyisocyanurate. E khothalletsa karabelo ea trimerization (polymerization) ea polyisocyanurates, e etsang foam e thata bakeng sa li-cores tsa sandwich panel.
Ho fapana le dikhataholetsi tse thehilweng ho potassium,MXC-TMAE fana ka boemo bo lekanang le bo laoloang ba ho phahama nakong ea ho thehoa ha foam. Sena se lumella phallo e ntle ea foam, e leng ea bohlokoa lits'ebetsong tse kang liphanele le ho kenya mocheso ka sehatsetsing tse hlokang sebopeho se tsitsitseng le se boreleli sa foam. Taolo ea karabelo e ts'oanang e thusa ho qoba ho se lumellane ho kang kabo e sa lekanang ea foam kapa liphoso sehlahisoa sa ho qetela.
Tšebeliso ea Core Pakeng tsa Likarolo tse ka Ntle
Hang ha karolo e ka hare ea foam e se e entsoe 'me e tsitsitse, e kenngoa pakeng tsa likarolo tse peli tse ka ntle tsa tšepe kapa thepa e kopantsoeng. Likarolo li hokahanngoa le karolo e ka hare ea foam, hangata li sebelisa motsoako oa mocheso le khatello, e leng se netefatsang tlamo e matla ea sekhomaretsi le ho tiisa thepa ea mantlha sebakeng sa eona.
Phekolo le Liphetoho tsa ho Qetela
Kamora hore phanele ea sandwich e thehoe, foam e feta ts'ebetsong ea ho phekola moo lik'hemik'hale tse setseng ka har'a foam li phethoang. MXC-TMA e bapala karolo ho ntlafatseng ho phekola ha morao lits'ebetsong tsa foam e bōpiloeng ka mokhoa o tenyetsehang, ho netefatsa hore foam e fihlela boima ba eona bo botle le katleho ea ho thibela ho ruruha.
Ho Seha le ho Bopa
Qetellong, diphanele tsa sandwich di sehwa ho ya ka boholo bo lakatsehang bakeng sa tshebediso ya tsona e ikgethang, ebang ke bakeng sa dikaho tsa kaho, mabota a polokelo e batang, kapa ditshebediso tse ding. Diphanele di se di loketse ho kenngwa dibakeng tse fapaneng tsa kaho kapa tsa indasteri.
Hobaneng MXC-TMA e le ea Bohlokoa bakeng sa Tlhahiso ea Sandwich Panel
Bokhoni ba MXC-TMA ba ho laola karabelo ea polyisocyanurate ka katleho bo etsa hore e be ea bohlokoa tlhahisong ea liphanele tsa sandwich tsa boleng bo holimo. Ka ho khothaletsa ts'ebetso ea trimerization le ho ntlafatsa phallo ea metsi, MXC-TMA e netefatsa hore khubu ea foam ea ho qetela e na le sebopeho se tsitsitseng, thepa e phahameng ea ho thibela mocheso, le matla a matle a mechini. Sena se fella ka liphanele tsa sandwich tse tšoarellang le tse sebetsang hantle tse loketseng mefuta e fapaneng ea lits'ebetso.
Qetello
Tlhahiso ea liphanele tsa sandwich e kenyelletsa motsoako oa thepa e tala le mahlale a tlhahiso ea ho nepahala. Motheo oa foam oa polyisocyanurate o susumetsoang ke lihlahisoa tse kang MXC-TMA o fana ka ho thibela mocheso le matla a sebopeho a hlokahalang bakeng sa thepa ena ea kaho e feto-fetohang. Ka bokhoni ba eona bo ikhethang ba ho laola reactivity le ho ntlafatsa phallo, MXC-TMA ke motsoako oa bohlokoa ho netefatsa ts'ebetso le boleng ba liphanele tsa sandwich tse sebelisoang liindastering tse fapaneng.
Nako ea poso: Hlakola-19-2025