The cable sheath (eo hape e tsejoang e le sheath kapa sheath e ka ntle) ke lera le ka ntle la thapo, thapo ea optical kapa terata, joalo ka mokoallo oa bohlokoa ka ho fetesisa oa thapo ho sireletsa tšireletseho ea sebopeho sa kahare, ho sireletsa mohala mochesong oa kantle, serame, metsi, ultraviolet, ozone, kapa tšenyo ea lik'hemik'hale le mochini nakong ea ts'ebetso le ka mor'a ho kenya. Cable sheathing ha e reretsoe ho nka sebaka sa matlafatso ka har'a thapo, empa hape e ka fana ka boemo bo phahameng ba ts'ireletso e fokolang. Ntle le moo, sheath ea cable e ka boela ea lokisa sebopeho le sebopeho sa mokhanni ea koaletsoeng, hammoho le lera le sireletsang (haeba le le teng), ka hona la fokotsa tšitiso ea khokahano ea motlakase ea motlakase (EMC). Sena se bohlokoa ho netefatsa phetiso e tsitsitseng ea matla, lets'oao, kapa data ka har'a thapo kapa terata. Sheathing e boetse e phetha karolo ea bohlokoa ho tšoarelleng ha likhoele tsa optical le lithapo.
Ho na le mefuta e mengata ea lisebelisoa tsa cable sheath, lisebelisoa tse sebelisoang hangata ke -polyethylene e kopantsoeng (XLPE), polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), perfluoroalkoxy resin (PFA), polyurethane (PUR),polyethylene (PE), thermoplastic elastomer (TPE) lepolyvinyl chloride (PVC), E mong le e mong o na le litšobotsi tse fapaneng tsa ts'ebetso.
Khetho ea lisebelisoa tse tala bakeng sa sheathing ea cable e tlameha ho qala ka ho nahanela ho ikamahanya le maemo ho tikoloho le ho lumellana ha tšebeliso ea lihokelo. Ka mohlala, libaka tse batang haholo li ka hloka hore cable e sheathing e lulang e tenyetseha ka mocheso o tlase haholo. Ho khetha thepa e nepahetseng ea sheathing ho bohlokoa ho khetholla thapo e ntle ka ho fetisisa ea optical bakeng sa kopo ka 'ngoe. Ka hona, ke habohlokoa ho utloisisa hantle hore na mohala oa optical kapa terata o lokela ho finyella morero ofe le hore na o lokela ho finyella litlhoko life.
Polyvinyl Chloride (PVC)ke ntho e sebelisoang hangata bakeng sa ho sheathing ka mohala. E entsoe ka resin e thehiloeng ho polyvinyl chloride, e eketsa stabilizer, plasticizer, inorganic fillers joalo ka calcium carbonate, additives le lubricant, joalo-joalo, ka ho kopanya le ho luba le extrusion. E na le thepa e ntle ea 'mele, ea mechine le ea motlakase, ha e ntse e e-na le ho hanyetsa boemo ba leholimo bo botle le botsitso ba lik'hemik'hale, e ka boela ea ntlafatsa ts'ebetso ea eona ka ho eketsa li-additives tse fapaneng, tse kang ho thibela mollo, ho hanyetsa mocheso joalo-joalo.
Mokhoa oa tlhahiso ea PVC cable sheath ke ho eketsa likaroloana tsa PVC ho extruder le ho li ntša tlas'a mocheso o phahameng le khatello ea ho etsa sheath ea cable ea tubula.
Melemo ea baki ea thapo ea PVC e theko e tlase, e bonolo ho e sebetsa le ho e kenya, le mefuta e mengata ea lits'ebetso. E atisa ho sebelisoa ka lik'hebole tse tlase-tlase, likhoele tsa puisano, lithapo tsa kaho le masimong a mang. Leha ho le joalo, ho hanyetsa mocheso o phahameng, ho hanyetsa serame, ho hanyetsa UV le lisebelisoa tse ling tsa PVC cable sheathing li batla li fokola, li na le lintho tse kotsi ho tikoloho le 'mele oa motho,' me ho na le mathata a mangata ha a sebelisoa libakeng tse khethehileng. Ka ntlafatso ea tlhokomeliso ea tikoloho ea batho le ntlafatso ea litlhoko tsa ts'ebetso ea thepa, litlhoko tse phahameng li behiloe pele bakeng sa thepa ea PVC. Ka hona, libakeng tse ling tse khethehileng, tse kang sefofane, sefofane, matla a nyutlelie le masimo a mang, ho sebelisoa ka hloko ho roala cable ea PVC.
Polyethylene (PE)ke ntho e tloaelehileng ea sheath ea cable. E na le thepa e ntle ea mechine le botsitso ba lik'hemik'hale, 'me e na le ho hanyetsa mocheso o motle, ho hanyetsa serame le ho hanyetsa boemo ba leholimo. PE cable sheath e ka ntlafatsoa ka ho eketsa li-additives, tse kang li-antioxidants, li-absorber tsa UV, joalo-joalo.
Mokhoa oa tlhahiso ea PE cable sheath o tšoana le oa PVC, 'me likaroloana tsa PE li kenngoa ho extruder' me li fetisetsoa tlas'a mocheso o phahameng le khatello ea ho etsa sheath ea cable ea tubula.
PE cable sheath e na le melemo ea ho hanyetsa botsofali bo botle ba tikoloho le ho hanyetsa UV, ha theko e batla e le tlaase, e sebelisoa haholo ho lithapo tsa optical, lithapo tse tlaase tsa motlakase, lithapo tsa puisano, lithapo tsa merafo le masimo a mang. Cross-linked Polyethylene (XLPE) ke thepa ea sheath ea cable e nang le lisebelisoa tse phahameng tsa motlakase le tsa mochini. E hlahisoa ke lisebelisoa tsa polyethylene tse kopanyang lithemparetjha tse phahameng. Tsela ea crosslinking e ka etsa hore thepa ea polyethylene e be le sebopeho sa marang-rang a mararo, e leng se etsang hore e be le matla a phahameng le ho hanyetsa mocheso o phahameng. XLPE cable sheathing e sebelisoa haholo tšimong ea lithapo tse phahameng tsa motlakase, tse kang li-transmission line, substations, joalo-joalo E na le thepa e babatsehang ea motlakase, matla a mochine le botsitso ba lik'hemik'hale, empa hape e na le mocheso o babatsehang oa ho hanyetsa le ho hanyetsa boemo ba leholimo.
Polyurethane (PUR)e bua ka sehlopha sa lipolasetiki tse entsoeng ho elella bofelong ba lilemo tsa bo-1930. E hlahisoa ke ts'ebetso ea lik'hemik'hale e bitsoang ho eketsa polymerization. Hangata lihlahisoa tse tala ke petroleum, empa lisebelisoa tsa limela tse kang litapole, poone kapa li-beet tse tsoekere li ka sebelisoa tlhahiso ea eona. PUR ke lisebelisoa tse sebelisoang hangata tsa cable sheathing. Ke thepa ea elastomer e nang le khanyetso e ntle ea ho roala, ho hanyetsa botsofali, ho hanyetsa oli le ho hanyetsa acid le alkali, ha e ntse e e-na le matla a matle a mochine le thepa ea ho hlaphoheloa. The PUR cable sheath e ka ntlafatsoa ka ho kenyelletsa li-additives tse fapaneng, tse kang li-flame retardants, li-agent tse hanyetsanang le mocheso o phahameng, joalo-joalo.
Mokhoa oa tlhahiso ea PUR cable sheath ke ho eketsa likaroloana tsa PUR ho extruder le ho li ntša tlas'a mocheso o phahameng le khatello ea ho etsa sheath ea tubular cable. Polyurethane e na le thepa e ntle haholo ea mochini.
Thepa e na le khanyetso e ntle ea ho roala, ho hanyetsa ho itšeha le ho hanyetsa meokho, 'me e lula e tenyetseha haholo esita le ka mocheso o tlase. Sena se etsa hore PUR e tšoanelehe haholo bakeng sa lits'ebetso tse hlokang litlhoko tse matla tsa ho sisinyeha le ho khumama, joalo ka liketane tsa ho hula. Lits'ebetsong tsa liroboto, likhoele tse nang le PUR sheathing li ka mamella limilione tsa lipotoloho tse kobehang kapa matla a matla a torsion ntle le mathata. PUR e boetse e na le khanyetso e matla ho oli, li-solvents le mahlaseli a kotsi a ultraviolet. Ntle le moo, ho ipapisitse le sebopeho sa thepa, ha e na halogen ebile e na le malakabe, e leng lintlha tsa bohlokoa bakeng sa likhoele tse netefalitsoeng ke UL le tse sebelisoang United States. Lithapo tsa PUR hangata li sebelisoa kahong ea mochini le feme, liindasteri tsa indasteri le indasteri ea likoloi.
Le hoja sheath ea cable ea PUR e na le thepa e ntle ea 'mele, ea mechine le ea lik'hemik'hale, theko ea eona e batla e phahame 'me ha e tšoanelehe bakeng sa liketsahalo tse theko e tlaase, tsa tlhahiso e ngata.
Polyurethane thermoplastic elastomer (TPU)ke lisebelisoa tse sebelisoang hangata ho sheathing. E fapane le polyurethane elastomer (PUR), TPU ke thepa ea thermoplastic e nang le ts'ebetso e ntle le polasetiki.
TPU cable sheath e na le khanyetso e ntle ea ho apara, ho hanyetsa oli, ho hanyetsa acid le alkali le ho hanyetsa boemo ba leholimo, 'me e na le matla a matle a mochine le ts'ebetso ea ho hlaphoheloa ea elastic, e ka ikamahanyang le motsamao o rarahaneng oa mochine le tikoloho ea vibrate.
TPU cable sheath e entsoe ka ho eketsa likaroloana tsa TPU ho extruder le ho li ntša tlas'a mocheso o phahameng le khatello ea ho etsa sheath ea cable ea tubula.
TPU cable sheathing e sebelisoa haholo indastering ea boiketsetso, lisebelisoa tsa lisebelisoa tsa mochini, litsamaiso tsa taolo ea motsamao, liroboto le masimo a mang, hammoho le likoloi, likepe le masimo a mang. E na le ts'ebetso e ntle ea ho roala le ts'ebetso ea ho hlaphoheloa ea elastic, e ka sireletsa mohala ka katleho, empa hape e na le ho hanyetsa mocheso o phahameng haholo le ho hanyetsa mocheso o tlase.
Ha ho bapisoa le PUR, TPU cable sheathing e na le molemo oa ts'ebetso e ntle ea ts'ebetso le polasetiki, e ka ikamahanyang le boholo ba cable le litlhoko tsa sebopeho. Leha ho le joalo, theko ea TPU cable sheathing e batla e phahame, 'me ha e loketse liketsahalo tse theko e tlaase, tse hlahisoang ka bongata.
Rabara ea silicone (PU)ke lisebelisoa tse sebelisoang hangata ho sheathing. Ke lintho tse entsoeng ka polymer, tse bolelang ketane e kholo e entsoeng ka silicon le liathomo tsa oksijene ka ho fapanyetsana, 'me athomo ea silicon hangata e hokahane le lihlopha tse peli tsa tlhaho tsa rabara. Rabara e tloaelehileng ea silicone e entsoe haholo ka liketane tsa silicone tse nang le lihlopha tsa methyl le vinyl e nyane. Kenyelletso ea sehlopha sa phenyl e ka ntlafatsa ho hanyetsa mocheso o phahameng le o tlase oa rabara ea silicone, 'me ho kenngoa ha trifluoropropyl le sehlopha sa cyanide ho ka ntlafatsa ho hanyetsa mocheso le ho hanyetsa oli ea rabara ea silicone. PU e na le khanyetso e ntle ea mocheso o phahameng, ho hanyetsa serame le ho hanyetsa oxidation, hape e na le bonolo bo botle le thepa ea ho hlaphoheloa ea elastic. Silicone rabara sheath e ka ntlafatsa ts'ebetso ea eona ka ho kenyelletsa li-additives tse fapaneng, joalo ka li-agent tse hananang le ho roala, li-agent tse hananang le oli, jj.
Mokhoa oa tlhahiso ea silicone rabara sheath ke ho eketsa motsoako oa rabara oa silicone ho extruder le ho o ntša tlas'a mocheso o phahameng le khatello ea ho etsa sheath ea cable ea tubula. Silicone rabara sheath e sebelisoa haholo mochesong o phahameng le khatello e phahameng, litlhoko tsa ho hanyetsa boemo ba leholimo, joalo ka sefofane, limela tsa matla a nyutlelie, petrochemical, sesole le masimo a mang.
E na le khanyetso e ntle ea mocheso o phahameng le khanyetso ea oxidation, e ka sebetsa ka mokhoa o tsitsitseng mocheso o phahameng, khatello e phahameng, tikoloho e matla ea kutu, empa hape e na le matla a matle a mochini le ts'ebetso ea ho hlaphoheloa ea elastic, e khona ho ikamahanya le motsamao o rarahaneng oa mochini le tikoloho ea vibrate.
Ha ho bapisoa le lisebelisoa tse ling tsa sheathing ea cable, silicone rabara sheathing e na le mocheso o phahameng oa ho hanyetsa le ho hanyetsa oxidation, empa hape e na le bonolo bo botle le ts'ebetso ea ho hlaphoheloa ea elastic, e loketseng maemo a thata a ho sebetsa. Leha ho le joalo, theko ea silicone rabara sheath e batla e phahame, 'me ha e loketse liketsahalo tse theko e tlaase, tsa tlhahiso ea bongata.
Polytetrafluoroethylene (PTFE)ke lisebelisoa tse sebelisoang hangata ka mohala, tse tsejoang hape e le polytetrafluoroethylene. Ke thepa ea polymer e nang le khanyetso e ntle ea kutu, e hanyetsa mocheso o phahameng le khanyetso ea lik'hemik'hale, 'me e ka sebetsa ka mokhoa o tsitsitseng mochesong o feteletseng, khatello e phahameng le tikoloho e matla ea kutu. Ho feta moo, li-plastiki tsa fluorine li boetse li na le thepa e ntle ea ho thibela lelakabe le ho hanyetsa ho apara.
Mokhoa oa tlhahiso ea fluorine polasetiki cable sheath ke ho eketsa likaroloana tsa polasetiki tsa fluorine ho extruder le ho li ntša tlas'a mocheso o phahameng le khatello ea ho etsa sheath ea cable ea tubula.
Fluorine polasetiki cable sheath e sebelisoa haholo sebakeng sa sefofane, limela tsa matla a nyutlelie, petrochemical le masimo a mang a phahameng, hammoho le li-semiconductors, puisano ea optical le masimo a mang. E na le khanyetso e ntle ea kutu le ho hanyetsa mocheso o phahameng, e ka sebetsa ka mokhoa o tsitsitseng mocheso o phahameng, khatello e phahameng, tikoloho e matla ea kutu ka nako e telele, empa hape e na le matla a matle a mochini le ts'ebetso ea ho hlaphoheloa ea elastic, e khona ho ikamahanya le motsamao o rarahaneng oa mochini le tikoloho ea vibrate.
Ha ho bapisoa le lisebelisoa tse ling tsa cable sheath, fluorine polasetiki cable sheath e na le khanyetso e phahameng ea kutu le mocheso o phahameng oa ho hanyetsa, o loketseng maemo a sebetsang a feteletseng. Leha ho le joalo, theko ea sheath ea polasetiki ea fluorine e batla e phahame, 'me ha e loketse liketsahalo tse theko e tlaase, tsa tlhahiso ea bongata.
Nako ea poso: Oct-14-2024