Litiiso tse fetoletsoeng tsa polyurethane ke thepa e tiileng ea ho tiisa e nang le khanyetso e ntle ea ho roala, kutu le mocheso o phahameng, 'me e sebelisoa mefuteng e mengata e fapaneng ea lits'ebetso tsa indasteri.Sengoliloeng sena se tla hlalosa litšobotsi tsa mantlha, libaka tsa ts'ebeliso le melemo ea litiiso tse fetotsoeng tsa polyurethane.Litiiso li boetse li bitsoa litiiso kapa litiiso tsa oli, li entsoe ka karolo e le 'ngoe kapa tse' maloa tsa sekoaelo se bōpehileng joaloka selikalikoe, se tsitsitseng ka shaft, se nang le sete sa mehele, 'me sete se seng sa mehele kapa li-gaskets li kopana kapa li theha lekhalo le moqotetsane la labyrinth, bapala. karolo ea ho arola oli le khase e metsi, ho thibela ho phalla ha oli kapa ho kena le ho hlasela lintho tse tsoang linaheng tse ling.Ka nako e ts'oanang, e ka boela ea mamella khatello, ka har'a moeli o itseng ka karolo e 'meli ea ho jara khatello le ho tiisa.Litiiso tse fetotsoeng tsa polyurethane, tse nang le manganga, oli, acid, ozone, botsofali, mocheso o tlase, ho taboha, ts'usumetso le litšobotsi tse ling, ho fetola litiiso tsa polyurethane matla a ts'ehetso, tse sebelisoang haholo libakeng tse fapaneng.Ka kakaretso, litiiso tse fetotsoeng tsa polyurethane li na le melemo e mengata mme li ka sebelisoa haholo mafapheng a fapaneng a indasteri.Ka hona, ha u khetha thepa ea ho tiisa, litiiso tsa polyurethane tse fetotsoeng ke khetho e ntle.
Katleho e kholo ea polyurethane joalo ka thepa ea tiiso e fihlile mathoasong a lilemo tsa bo-1980, ha bahlahisi ba bangata ba ne ba etsa thepa e tala ea polyurethane e neng e sa khone ho sebetsa ka thata ho hydrolysis.Lisebelisoa tsena tse ncha li ile tsa hlahisa litiiso tsa polyurethane tse ileng tsa lula li feto-fetoha khatellong e phahameng le ho fihlela ho +110 ° C, ho finyella ts'ebetso e ntle ea ho tiisa le ho sebetsa nako e telele ho feta polyurethane ea pele (e neng e hanyetsa feela mocheso o phahameng oa +80 ° C).Sephetho sena se bula monyako oa lits'ebetso tsa hydraulic mochining o tsamaeang.
Nako ea poso: Apr-18-2023
