Sekoahelo sa thapo (se tsejoang hape e le sekoahelo sa kantle kapa sekoahelo) ke lera le ka ntle la thapo, thapo ea optical, kapa terata, e le tšitiso ea bohlokoa ka ho fetisisa thapong ho sireletsa polokeho ea sebopeho sa kahare, ho sireletsa thapo mochesong o kantle, serameng, mongobong, mahlaseling a letsatsi, ozone, kapa tšenyo ea lik'hemik'hale le ea mechine nakong ea ho kenya le ka mor'a ho kenya. Sekoahelo sa thapo ha sea rereloa ho nkela matlafatso ka hare ho thapo sebaka, empa se ka boela sa fana ka boemo bo phahameng ba tšireletso e fokolang. Ho phaella moo, sekoahelo sa thapo se ka boela sa lokisa sebopeho le sebopeho sa mokhanni ea qabeletsoeng, hammoho le lera la tšireletso (haeba le le teng), ka hona ho fokotsa tšitiso ho tsamaellana ha electromagnetic ea thapo (EMC). Sena se bohlokoa ho netefatsa phetiso e tsitsitseng ea matla, lets'oao, kapa data ka har'a thapo kapa terata. Sekoahelo se boetse se bapala karolo ea bohlokoa ho tšoarelleng ha lithapo le lithapo tsa optical.
Ho na le mefuta e mengata ea thepa ea sheath ea cable, thepa ea sheath ea cable e sebelisoang hangata ke -polyethylene e hokahaneng (XLPE), polytetrafluoroethylene (PTFE), ethylene propylene e nang le fluorinated (FEP), perfluoroalkoxy resin (PFA), polyurethane (PUR),politheine (PE), thermoplastic elastomer (TPE) lepolyvinyl chloride (PVC), E 'ngoe le e 'ngoe ea tsona e na le litšobotsi tse fapaneng tsa ts'ebetso.
Khetho ea thepa e tala bakeng sa ho koahela lithapo e lokela ho qala ka ho ela hloko ho ikamahanya le tikoloho le ho lumellana ha tšebeliso ea lihokelo. Mohlala, libaka tse batang haholo li ka hloka ho koahela lithapo tse lulang li tenyetseha mochesong o tlase haholo. Ho khetha thepa e nepahetseng ea ho koahela lithapo ho bohlokoa ho fumana thapo e ntle ka ho fetisisa ea optical bakeng sa ts'ebeliso e 'ngoe le e 'ngoe. Ka hona, ho bohlokoa ho utloisisa hantle hore na thapo kapa terata ea optical e tlameha ho fihlela morero ofe le hore na e tlameha ho fihlela litlhoko life.
Polyvinyl Chloride (PVC)ke thepa e sebediswang haholo bakeng sa ho thiba dikheibole. E entswe ka resin e thehilweng ho polyvinyl chloride, e eketsa stabilizer, plasticizer, di-filler tse sa pheleng tse kang calcium carbonate, di-additives le di-lubricant, jj., ka ho kopanya le ho kguma le ho ntsha. E na le thepa e ntle ya mmele, ya mechini le ya motlakase, le hoja e na le kganyetso e ntle ya boemo ba lehodimo le botsitso ba dikhemikhale, e ka boela ya ntlafatsa tshebetso ya yona ka ho eketsa di-additives tse fapaneng, tse kang tse thibelang malakabe, kganyetso ya mocheso le tse ding.
Mokhoa oa tlhahiso ea sheath ea thapo ea PVC ke ho eketsa likaroloana tsa PVC ho extruder le ho li ntša tlas'a mocheso o phahameng le khatello ho etsa sheath ea thapo ea tubula.
Melemo ea baki ea thapo ea PVC e theko e tlase, e bonolo ho e sebetsana le ho e kenya, le mefuta e mengata ea lits'ebetso. Hangata e sebelisoa likhoeleng tse nang le motlakase o tlase, likhoele tsa puisano, lithapo tsa kaho le masimo a mang. Leha ho le joalo, khanyetso e phahameng ea mocheso, khanyetso ea serame, khanyetso ea UV le litšobotsi tse ling tsa sheathing ea thapo ea PVC li fokola haholo, li na le lintho tse kotsi tikolohong le 'meleng oa motho,' me ho na le mathata a mangata ha a sebelisoa libakeng tse khethehileng. Ka ntlafatso ea temoho ea tikoloho ea batho le ntlafatso ea litlhoko tsa ts'ebetso ea thepa, litlhoko tse phahameng li se li behiloe pele bakeng sa thepa ea PVC. Ka hona, libakeng tse ling tse khethehileng, joalo ka lifofane, lifofane, matla a nyutlelie le masimo a mang, sheathing ea thapo ea PVC e sebelisoa ka hloko.
Polyethylene (PE)ke thepa e tloaelehileng ea sheath ea cable. E na le thepa e ntle ea mechini le botsitso ba lik'hemik'hale, 'me e na le khanyetso e ntle ea mocheso, khanyetso ea serame le khanyetso ea boemo ba leholimo. Sheath ea cable ea PE e ka ntlafatsoa ka ho eketsa lintho tse ling, tse kang li-antioxidants, li-UV absorbers, jj.
Mokhoa oa tlhahiso ea sheath ea cable ea PE o tšoana le oa PVC, 'me likaroloana tsa PE li eketsoa ho extruder ebe li ntšoa tlas'a mocheso o phahameng le khatello ho etsa sheath ea cable ea tubular.
Sekoahelo sa thapo ea PE se na le melemo ea ho hanyetsa botsofali ba tikoloho hantle le ho hanyetsa mahlaseli a kotsi a UV, ha theko e le tlase haholo, e sebelisoa haholo likhoeleng tsa optical, likhoele tsa motlakase o tlase, likhoele tsa puisano, likhoele tsa merafo le masimo a mang. Polyethylene e hokahaneng le sefapano (XLPE) ke thepa ea sekoahelo sa thapo e nang le thepa e phahameng ea motlakase le ea mechini. E hlahisoa ke thepa ea polyethylene e hokahanang le sefapano mochesong o phahameng. Karabelo ea ho hokahanya e ka etsa hore thepa ea polyethylene e thehe sebopeho sa marang-rang a mahlakore a mararo, e leng se etsang hore e be le matla a phahameng le ho hanyetsa mocheso o phahameng. Sekoahelo sa thapo ea XLPE se sebelisoa haholo tšimong ea likhoele tsa motlakase o phahameng, joalo ka mela ea phetisetso, liteishene tse nyane, jj. E na le thepa e ntle ea motlakase, matla a mechini le botsitso ba lik'hemik'hale, empa hape e na le ho hanyetsa mocheso ho hoholo le ho hanyetsa boemo ba leholimo.
Polyurethane (PUR)e bolela sehlopha sa polasetiki tse qapiloeng mafelong a bo-1930. E hlahisoa ke ts'ebetso ea lik'hemik'hale e bitsoang ho eketsa polymerization. Hangata thepa e tala ke peterole, empa thepa ea limela joalo ka litapole, poone kapa li-beet tsa tsoekere le tsona li ka sebelisoa tlhahisong ea eona. PUR ke thepa e sebelisoang haholo ea ho sheatha cable. Ke thepa ea elastomer e nang le khanyetso e ntle ea ho tsofala, khanyetso ea botsofali, khanyetso ea oli le khanyetso ea asiti le alkali, ha e ntse e na le matla a matle a mechini le thepa ea ho hlaphoheloa e tenyetsehang. Khetla ea PUR e ka ntlafatsoa ka ho eketsa li-additi tse fapaneng, joalo ka li-retant tsa mollo, li-agent tse hanelang mocheso o phahameng, jj.
Mokhoa oa tlhahiso ea sheath ea cable ea PUR ke ho eketsa likaroloana tsa PUR ho extruder le ho li ntša tlas'a mocheso o phahameng le khatello ho etsa sheath ea cable ea tubular. Polyurethane e na le thepa e ntle haholo ea mechini.
Thepa ena e na le ho hanyetsa ho tsofala ho hoholo, ho hanyetsa ho seha le ho hahola, 'me e lula e tenyetseha haholo esita le mochesong o tlase. Sena se etsa hore PUR e lokele haholo lits'ebetsong tse hlokang litlhoko tsa motsamao o matla le ho kobeha, joalo ka liketane tsa ho hula. Lits'ebetsong tsa roboto, likhoele tse nang le PUR sheathing li ka mamella lipotoloho tse limilione tsa ho kobeha kapa matla a matla a ho torsional ntle le mathata. PUR e boetse e na le ho hanyetsa ho matla ho oli, li-solvent le mahlaseli a ultraviolet. Ho phaella moo, ho latela sebopeho sa thepa, ha e na halogen ebile ha e na lelakabe, e leng litekanyetso tsa bohlokoa bakeng sa likhoele tse netefalitsoeng ke UL le tse sebelisoang United States. Likhoele tsa PUR li sebelisoa hangata kahong ea mechini le fektheri, othomathike ea indasteri le indastering ea likoloi.
Leha sheath ea thapo ea PUR e na le thepa e ntle ea 'mele, ea mechini le ea lik'hemik'hale, theko ea eona e phahame haholo 'me ha ea lokela liketsahalo tse theko e tlase le tse hlahisoang ka bongata.
Elastomer ea thermoplastic ea polyurethane (TPU)ke thepa e atisang ho sebelisoa ho sheathing ea cable. Ho fapana le polyurethane elastomer (PUR), TPU ke thepa ea thermoplastic e nang le mokhoa o motle oa ho sebetsa le ho plasticity.
Sekoahelo sa thapo ea TPU se na le khanyetso e ntle ea ho tsofala, khanyetso ea oli, khanyetso ea asiti le alkali le khanyetso ea boemo ba leholimo, 'me se na le matla a matle a mechini le ts'ebetso ea ho hlaphoheloa e tenyetsehang, e ka ikamahanyang le motsamao o rarahaneng oa mechini le tikoloho ea ho thothomela.
Sekoahelo sa thapo ea TPU se etsoa ka ho eketsa likaroloana tsa TPU ho extruder le ho li ntša tlas'a mocheso o phahameng le khatello ho etsa sekoahelo sa thapo ea tubula.
Sekoahelo sa thapo ea TPU se sebelisoa haholo ho othomathike ea indasteri, 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 khanyetso e ntle ea ho tsofala le ts'ebetso ea ho hlaphoheloa e tenyetsehang, e ka sireletsa thapo ka katleho, empa hape e na le khanyetso e ntle ea mocheso o phahameng le khanyetso e tlase ea mocheso.
Ha ho bapisoa le PUR, ho sheathing ka thapo ya TPU ho na le monyetla wa tshebetso e ntle ya ho e lokisa le ho e etsa hore e be bonolo, e ka ikamahanyang le ditlhoko tse ngata tsa boholo ba thapo le sebopeho. Leha ho le jwalo, theko ya ho sheathing ka thapo ya TPU e phahame haholo, mme ha e a lokela mekete ya theko e tlase, ya tlhahiso e ngata.
Rabara ea silicone (PU)ke thepa e atisang ho sebelisoa ho sheathing ea cable. Ke thepa ea polymer ea tlhaho, e bolelang ketane e kholo e entsoeng ka liathomo tsa silicon le oksijene ka ho fapanyetsana, 'me athomo ea silicon hangata e hokahane le lihlopha tse peli tsa rabara ea tlhaho. Rabara e tloaelehileng ea silicone e entsoe haholo-holo ka liketane tsa silicone tse nang le lihlopha tsa methyl le vinyl e nyane. Ho hlahisoa ha sehlopha sa phenyl ho ka ntlafatsa khanyetso ea mocheso o phahameng le o tlase oa rabara ea silicone, 'me ho hlahisoa ha sehlopha sa trifluoropropyl le cyanide ho ka ntlafatsa khanyetso ea mocheso le khanyetso ea oli ea rabara ea silicone. PU e na le khanyetso e ntle ea mocheso o phahameng, khanyetso ea serame le khanyetso ea oxidation, 'me hape e na le bonolo bo botle le thepa ea ho hlaphoheloa ea elastic. Sheath ea cable ea rabara ea silicone e ka ntlafatsa ts'ebetso ea eona ka ho eketsa li-additi tse fapaneng, joalo ka li-agent tse hanyetsang ho tsofala, li-agent tse hanyetsang oli, jj.
Mokhoa oa tlhahiso ea khetla ea rabara ea silicone ke ho eketsa motsoako oa rabara ea silicone ho extruder le ho e ntša tlas'a mocheso o phahameng le khatello ho etsa khetla ea tubular. Khetla ea rabara ea silicone e sebelisoa haholo litlhokong tsa mocheso o phahameng le khatello e phahameng, ho hanyetsa boemo ba leholimo, joalo ka lifofane, litsi 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 botsitso mochesong o phahameng, khatellong e phahameng, tikolohong e matla ea mafome, empa hape e na le matla a matle a mechini le ts'ebetso ea ho hlaphoheloa e tenyetsehang, e ka ikamahanya le motsamao o rarahaneng oa mechini le tikoloho ea ho thothomela.
Ha ho bapisoa le thepa e 'ngoe ea ho koahela lithapo, ho koahela lithapo tsa rabara ea silicone ho na le khanyetso e phahameng ea mocheso le khanyetso ea oxidation, empa hape ho na le bonolo bo botle le ts'ebetso ea ho hlaphoheloa e tenyetsehang, e loketseng libaka tse rarahaneng tsa mosebetsi. Leha ho le joalo, theko ea thapo ea rabara ea silicone e phahame haholo, 'me ha e ea lokela liketsahalo tsa tlhahiso ea bongata tse theko e tlase.
Polytetrafluoroethylene (PTFE)ke thepa e sebelisoang haholo ho sheathing ea cable, e tsejoang hape e le polytetrafluoroethylene. Ke thepa ea polymer e nang le khanyetso e ntle ea mafome, khanyetso ea mocheso o phahameng le khanyetso ea lik'hemik'hale, 'me e ka sebetsa ka botsitso maemong a mocheso o phahameng haholo, khatello e phahameng le a matla a mafome. Ho feta moo, polasetiki ea fluorine le eona e na le thepa e ntle ea ho thibela malakabe le khanyetso ea ho tsofala.
Mokhoa oa tlhahiso ea sheath ea polasetiki ea fluorine ke ho eketsa likaroloana tsa polasetiki ea fluorine ho extruder le ho li ntša tlas'a mocheso o phahameng le khatello ho etsa sheath ea sheath ea tubular.
Sekoahelo sa thapo ea polasetiki ea fluorine se sebelisoa haholo libakeng tsa lifofane, lifemeng tsa matla a nyutlelie, petrochemical le masimong a mang a maemo a holimo, hammoho le li-semiconductor, puisano ea mahlo le masimo a mang. E na le khanyetso e ntle ea ho bola le khanyetso ea mocheso o phahameng, e ka sebetsa ka botsitso tikolohong ea mocheso o phahameng, khatello e phahameng, le ts'enyeho e matla ka nako e telele, empa hape e na le matla a matle a mechini le ts'ebetso e ntle ea ho hlaphoheloa e tenyetsehang, e ka ikamahanya le motsamao o rarahaneng oa mechini le tikoloho ea ho thothomela.
Ha ho bapisoa le thepa e 'ngoe ea sheath ea cable, sheath ea cable ea polasetiki ea fluorine e na le khanyetso e phahameng ea mafome le khanyetso ea mocheso o phahameng, e loketseng libaka tse mpe haholo tsa mosebetsi. Leha ho le joalo, theko ea sheath ea cable ea polasetiki ea fluorine e phahame haholo, 'me ha e lokele liketsahalo tse theko e tlase tsa tlhahiso ea bongata.
Nako ea poso: Mphalane-14-2024