Izimpawu zenjoloba ye-polyurethane, eyenziwe ngezinto zenjoloba ye-polyurethane, iyingxenye ebalulekile ezinhlobonhlobo zezicelo zezimboni. Lezi zimpawu ziza ngezinhlobo ezahlukene, okuhlanganisa ama-O-rings, ama-V-ring, ama-U-rings, ama-Y-rings, ama-rectangular seal, ama-seal amise okwezifiso, namawasha okuvala uphawu.
Irabha ye-polyurethane, i-polymer yokwenziwa, ivala igebe phakathi kwenjoloba yemvelo namapulasitiki avamile. Isetshenziswa kakhulu ekucubunguleni ingcindezi yeshidi lensimbi, irabha ye-polyurethane okukhulunywa ngayo iwuhlobo lokuphonswa kwe-polyester. Ihlanganiswa kusuka ku-adipic acid ne-ethylene glycol, okuholela ku-polymer enesisindo se-molecular cishe esingama-2000. Le polymer iphinde iphendule ukuze yakhe i-prepolymer enamaqembu okuphela kwe-isocyanate. I-prepolymer bese ixutshwa ne-MOCA (4,4′-methylenebis(2-chloroaniline)) bese iphonswa ekubunjweni, kulandelwa i-vulcanization yesibili ukukhiqiza imikhiqizo yenjoloba ye-polyurethane enamazinga ahlukene obunzima.
Ukuqina kwezigxivizo zenjoloba ye-polyurethane bungavunyelaniswa ukuze kuhlangatshezwane nezidingo ezithile zokucubungula insimbi yeshidi, kusukela ku-20A kuya ku-90A esikalini sobunzima be-Shore.
Izimpawu Zokusebenza Ezibalulekile:
- I-Exceptional Wear Resistance: Irabha ye-polyurethane ibonisa ukumelana nokugqoka okuphezulu kakhulu kuzo zonke izinhlobo zenjoloba. Ukuhlolwa kwaselabhorethri kukhombisa ukuthi ukumelana kwayo nokugqokwa izikhathi ezi-3 kuya kwezi-5 kunenjoloba yemvelo, izinhlelo zokusebenza zomhlaba wangempela zivame ukubonisa izikhathi ezifika kweziyi-10 ukuqina.
- Amandla Aphezulu Nokunwebeka: Ngaphakathi kobubanzi bokuqina be-Shore A60 kuya ku-A70, irabha ye-polyurethane ibonisa amandla aphezulu nokunwebeka okuhle kakhulu.
- I-Superior Cushioning and Shock Absorption: Ezingeni lokushisa elivamile, izingxenye zenjoloba ye-polyurethane zingamunca u-10% kuya ku-20% wamandla okudlidliza, ngamanani aphakeme okumunca ngamaza akhuphukayo okudlidliza.
- Okuhle Kakhulu Kawoyela Nokumelana Namakhemikhali: Irabha ye-polyurethane ibonisa ukuhlobana okuncane kuwoyela wamaminerali angewona we-polar futhi ihlala ingathinteki kakhulu kumafutha (afana nophalafini nophethiloli) namafutha emishini (afana namafutha asebenzisa ugesi kanye namafutha okugcoba), amarabha asebenza ngokwenjongo evamile kanye nerabha ye-nitrile ephikisanayo. Kodwa-ke, ikhombisa ukuvuvukala okubalulekile kotshwala, ama-ester, nama-hydrocarbon anephunga elimnandi.
- I-High Friction Coefficient: Ngokuvamile ngaphezu kuka-0.5.
- Izakhiwo Ezengeziwe: Ukumelana kahle nezinga lokushisa eliphansi, ukumelana ne-ozone, ukumelana nemisebe, ukwahlukanisa ugesi, kanye nezakhiwo zokunamathela.
Izicelo:
Njengoba kunikezwe izici zayo eziphakeme zomzimba nemishini, irabha ye-polyurethane ivame ukusetshenziswa ezinhlelweni zokusebenza ezisebenza kahle, okuhlanganisa imikhiqizo engagqoki, izinto ezimelana nowoyela ezinamandla kakhulu, kanye nokuqina okuphezulu, izingxenye ze-modulus ephezulu. Ithola ukusetshenziswa okubanzi kuzo zonke izimboni ezahlukahlukene:
- Imishini Nezimoto: Ikhiqiza izakhi zebhafa ye-high-frequency braking, izingxenye zerabha ezilwa nokudlidliza, iziphethu zenjoloba, ama-coupling, nezingxenye zemishini yendwangu.
- Imikhiqizo Engazweli Uwoyela: Ikhiqiza amarola okuphrinta, ama-seal, iziqukathi zikaphethiloli, nezigxivizo zikawoyela.
- I-Harsh Friction Environments: Isetshenziswa kumapayipi okuthutha, omalayini bemishini yokugaya, izikrini, izihlungi, amasoli ezicathulo, amasondo ashayisanayo, amabhuleki, amabhuleki, namasondo ebhayisikili.
- Ukucindezelwa Okubandayo Nokugoba: Isebenza njengempahla yezinqubo ezintsha zokucindezela nokugoba okubandayo, ukufaka esikhundleni sensimbi efayo edla isikhathi futhi ebizayo.
- Irabha Yegwebu: Ngokusebenzisa amandla okusabela kwamaqembu e-isocyanate ngamanzi ukuze kukhululwe i-CO2, iraba yegwebu engasindi enezici ezinhle kakhulu zomshini ingakhiqizwa, ilungele ukugqumisa, ukuvikela ukushisa, ukuvikela umsindo, kanye nezinhlelo zokusebenza ezilwa nokudlidliza.
- Izicelo Zezokwelapha: Isetshenziswa ezingxenyeni zenjoloba ezisebenzayo, imithambo yegazi yokwenziwa, isikhumba sokwenziwa, amashubhu okufakwayo, izinto zokulungisa, kanye nezicelo zamazinyo.
Isikhathi sokuthumela: Sep-17-2025