Lithapa tse tiisang tsa PVC li se li ratoa haholo ke mamati a tšepe a polasetiki le likhoele tse koalang lifensetere hobane ha li phatlohe ebile li bonolo ho cheseha.Empa ke lilemo tse 2-3 feela, bothata bo ile ba hlaha.Karohano ea li-plasticizers tsa PVC, bothata bo boima ba indasteri ea machaba, e bonahalitsoe ka ho hlaka ka lihlopha tsa ho tiisa PVC.
Ka lebaka la ho arohana ha polasetiki, setšoantšo se silafatsoa ke lesela la rabara, bolelele bo khutsufatsoa, karolo e robehileng e khutsufalitsoe, 'me mathata a ho tiisa ho futsanehileng a ngata.Leha ho le joalo, ts'ebetso ea lithupelo tse nyane tsa mokhoa oa Sechaena, ho fokotsa litšenyehelo tsa mokhoa oa Sechaena, le tlholisano ea theko e tlase ea setaele sa Machaena ka bahlahisi ba sekoaelo sa mamati le lifensetere li lebisitse ho sebelisoeng ha li-plasticizers tse senyehileng le PVC e nchafalitsoeng, e leng se mpefalitseng mathata. indasteri ea ho tiisa.Qetello ea mohala oa tiiso ea PVC e qala ho hlaha.
EPDM EPDM sealing strips Mathoasong a 2000, naha e ile ea fana ka taelo ea sechaba ea ho thibela tšebeliso ea likhoele tsa ho tiisa tsa PVC tsa polyvinyl chloride, 'me e khothalelitse tšebeliso ea likhoele tsa tiiso tsa EPDM EPDM le likhoele tsa ho tiisa rabara tsa silicone tsa MVQ.Letlapa la ho tiisa EPDM, lesela la ho tiisa la maemo a holimo le sebelisoang likoloing le litereneng, qetellong le amohetsoe ke indasteri ea kaho.
Ha e le hantle, e ne e sebelisoa haholo indastering ea menyako le ea lifensetere ka mor'a 2002. Ka nako eo, menyako le lifensetere li ile tsa kena butle-butle nakong ea li-alloys tsa aluminium tse robehileng.EPDM e ile ea tšoana le likhoele tsa ho tiisa tsa maemo a holimo ka lebaka la thepa ea eona e phahameng ea 'mele le ho hanyetsa botsofali hantle.Ka 2011, e anngoeng ke oli ea machaba le lintlha tse ling, theko ea ethylene propylene e ile ea phahama, 'me mariha a marang-rang a EPDM a fihla, kahoo bohlale ba Sechaena bo ile ba tla, rabara e tsosolositsoeng e ile ea qala ho sebelisoa ka bongata,' me maraka eohle ea ho tiisa e ne e le teng. pherekano.Litiiso tse ntle li thata ho fumana.Moetsi oa setiiso sa mamati le lifensetere@门Window气气调板厂家Setereke se itseng naheng ea China ke setsi sa lithapo tse tiisang ka tlung, 'me hoo e ka bang 70% ea lithapo tsa EPDM tsa China li tsoa seterekeng sena.Ho na le mookameli oa mosebetsi o tšoanang seterekeng sena, 'me 70% ea liphahlo tsa naha tsa ethylene-propylene sealing li tsoa ho rona.
Letlapa la ho tiisa rabara ea silicone ha se thepa ea morao-rao ea ho tiisa likhoele, empa ha ho joalo.Rabara ea silicone e na le nalane ea mashome a lilemo Chaena.Baetsi ba sekontiri sa mamati le lifensetere ehlile ke tsona tse ratoang ke rabara lilemong tse 'maloa tse fetileng,' me li bobebe haholo.Lilemong tsa morao tjena, litšenyehelo li fokotsehile butle-butle, 'me butle-butle li 'nile tsa sebelisoa ho haha litiiso.
Ha ho bapisoa le rabara ea ethylene-propylene, molemo oa rabara ea silicone bakeng sa ho tiisa ke hore e na le ts'ebetso e ntle ea ho fokotseha le ho senyeha ho feta rabara ea ethylene-propylene, kahoo ts'ebetso ea ho tiisa e betere, 'me ho latela molao-motheo oa ho lekana ha mocheso oa nako, rabara ea silicone e ka mamella. mocheso ho fihlela ho 300 ° C, 'me o hanyetsana le rabara ea ethylene-propylene.Rabara e hantle ka ho fetisisa ea 180 ° C.Tlas'a mocheso o tšoanang, bophelo ba rabara ea silicone bo habeli ho feta ba rabara ea ethylene propylene, 'me bophelo ba tšebeletso bo bolelele.E na le inertia e ntle haholo ea 'mele, e seng chefo, e sa latsoeheng, rabara ea silicone e boetse e na le mocheso o motle haholo oa ho hanyetsa, ho hanyetsa serame, thepa ea dielectric, ho hanyetsa ozone le ho hanyetsa botsofali ba sepakapaka le mesebetsi e meng, mosebetsi o hlahelletseng oa rabara ea silicone ke tšebeliso ea mocheso o pharaletseng, e ka Sebelisa moetsi oa lemati le lifensetere tse tiisang nako e telele ho -60°C (kapa mocheso o tlase) ho ea ho +250°C (kapa mocheso o phahameng).Kahoo rabara ea silicone ke khetho e nepahetseng bakeng sa ho aha litiiso mehleng ea sejoale-joale.
Nako ea poso: Sep-01-2023