Iimpawu zerabha ye-polyurethane, eyenziwe kwizinto zerubha ze-polyurethane, ziyinxalenye ebalulekileyo kuluhlu olubanzi lwezicelo zoshishino. Ezi zitywina ziza ngeendlela ezahlukeneyo, kubandakanywa i-O-rings, i-V-rings, i-U-rings, i-Y-rings, i-rectangular seals, i-seal-shaped seals, kunye ne-washers zokutywinwa.
Irabha yePolyurethane, ipolima yokwenziwa, ivala umsantsa phakathi kwerabha yendalo kunye neeplastiki eziqhelekileyo. Isetyenziswa kakhulu kwi-metal sheet pressure processing, irabha ye-polyurethane ekuthethwa ngayo ngokuyintloko luhlobo lokuphosa i-polyester. Idityaniswe kwi-adipic acid kunye ne-ethylene glycol, okubangelwa i-polymer enesisindo se-molecular malunga ne-2000. Le polymer iphinda iphendule ukwenza i-prepolymer kunye namaqela okuphela kwe-isocyanate. I-prepolymer ke ixutywe kunye ne-MOCA (4,4′-methylenebis (2-chloroaniline)) kwaye iphonswe kwi-molds, ilandelwa yi-vulcanization yesibini ukuvelisa iimveliso zerabha ze-polyurethane ezinobunzima obuhlukeneyo.
Ukuqina kwetywina lerabha ye-polyurethane inokulungiswa ukuhlangabezana neemfuno ezithile zokusetyenzwa kwesinyithi, ukusuka kwi-20A ukuya kwi-90A kwisikali sobulukhuni be-Shore.
Iimpawu eziphambili zokuSebenza:
- Ukumelana nokuNxitywa okuKhethekileyo: Irabha yePolyurethane ibonisa ukuxhathisa okuphezulu kokunxiba kuzo zonke iintlobo zerabha. Uvavanyo lwaselabhoratri lubonisa ukuba ukuxhathisa kwayo kuku-3 ukuya ku-5 amaxesha erabha yendalo, kunye nezicelo zelizwe lokwenyani zihlala zibonisa amaxesha angama-10 ukuqina.
- Amandla aphezulu kunye noKulula: Ngaphakathi kwe-Shore A60 ukuya ku-A70 uluhlu lobunzima, irabha yepolyurethane ibonisa ukomelela okuphezulu kunye nokunwebeka okugqwesileyo.
- I-Superior Cushioning kunye ne-Shock Absorption: Kwiqondo lobushushu begumbi, izakhi zerabha ze-polyurethane zinokufunxa i-10% ukuya kwi-20% yamandla e-vibration, kunye namazinga aphezulu okufunxa kwii-vibration frequencies.
- I-Oli egqwesileyo kunye ne-Chemical Resistance: I-rubber ye-polyurethane ibonisa ubudlelwane obuncinci be-oyile ye-mineral engeyiyo i-polar kwaye ihlala ingachatshazelwanga ngamafutha (afana ne-kerosene kunye ne-petroli) kunye ne-oyile yomatshini (njenge-hydraulic kunye ne-oyile yokuthambisa), i-rubber yenjongo jikelele kunye ne-rubber ye-nitrile ephikisanayo. Nangona kunjalo, ibonisa ukudumba okubalulekileyo kwii-alcohols, ii-esters, kunye nee-hydrocarbons ezinuka kamnandi.
- I-High Friction Coefficient: Ngokuqhelekileyo ngaphezu kwe-0.5.
- Iipropati ezongezelelweyo: Ukumelana kakuhle nobushushu obuphantsi, ukumelana ne-ozone, ukuxhathisa kwimitha, ukugquma kombane, kunye neempawu zokubambelela.
Usetyenziso:
Ngenxa yeempawu zayo eziphezulu zomzimba kunye noomatshini, irabha ye-polyurethane isetyenziswa rhoqo kwizicelo eziphezulu zokusebenza, kubandakanywa iimveliso zokunxiba, izinto ezichasene neoli, kunye nobunzima obuphezulu, i-high-modulus components. Ifumana ukusetyenziswa okubanzi kumashishini ahlukeneyo:
- Oomatshini kunye neZithuthi: Ukuvelisa izakhi zesithinteli seziqhoboshi zesantya esiphezulu, iinxalenye zerabha ezichasene nokungcangcazela, imithombo yerabha, ukudityaniswa, kunye nezinto zoomatshini belaphu.
- Iimveliso ezinganyangekiyo kwi-oyile: Ukuvelisa iirola zokuprinta, izitywini, izikhongozeli zepetroli, kunye nezitywina zeoyile.
- Ubume beHarsh Friction: Isetyenziswa kwimibhobho yokuhambisa, iilenja zezixhobo zokusila, izikrini, izihluzi, iisoli zezihlangu, amavili okuqhuba ifriction, bushings, brake pads, namatayara ebhayisekile.
- Ukucofa okubandayo kunye nokugoba: Ukusebenzela njengesixhobo sokucofa okubandayo kunye neenkqubo zokugoba, ukubuyisela iintsimbi zokufa ezidla ixesha kunye neendleko.
- Irabha yegwebu: Ngokusebenzisa i-reaction yamaqela e-isocyanate ngamanzi ukukhulula i-CO2, irabha ye-foam ekhaphukhaphu eneempawu ezigqwesileyo ezinomatshini inokuveliswa, ilungele ukugquma, ukugquma ubushushu, ukuvalela isandi, kunye nezicelo ezichasene nokungcangcazela.
- Usetyenziso lwezoNyango: Ukusetyenziswa kumacandelo erabha asebenzayo, imithambo yegazi eyenziweyo, ulusu lokwenziwa, iityhubhu ezifakwayo, izinto zokulungisa, kunye nokusetyenziswa kwamazinyo.
Ixesha lokuposa: Sep-17-2025