Izici ze-polyurethane seal zifinyezwa ngale ndlela elandelayo:
1. Izimpawu ze-polyurethane zinomphumela omuhle wokuvimbela uthuli.Ayingenwa kalula yizinto zangaphandle, ivimbele konke ukuphazamiseka kwangaphandle, ngisho nowoyela onamathelayo ongaphezulu nezinto zangaphandle zingasulwa;
2. Ukumelana nokugqoka okuphezulu kanye nokumelana okuqinile kwe-extrusion.Izigxivizo ze-polyurethane zingahamba ziye emuva naphambili ngesivinini esingu-0.05m/s endaweni yokucindezela engu-10MPa ngaphandle kokugcotshwa;
3. Ukumelana nowoyela okuhle.Izigxivizo ze-polyurethane ngeke zigle ngisho nalapho zibhekene namafutha kaphethiloli afana nophalafini nophethiloli, noma amafutha ayimishini afana nowoyela wehydraulic, uwoyela wenjini, namafutha okugcoba;
4. Impilo ende yesevisi.Ngaphansi kwezimo ezifanayo, impilo yesevisi ye-polyurethane seals iphindwe izikhathi ezingu-50 kune-nitrile seal (ithebula elingezansi liqhathanisa izakhiwo ze-polyether polyurethane seals ne-nitrile seal).Kusukela kuthebula elingezansi, kungabonakala ukuthi ama-polyether polyurethane seal anezinzuzo eziningi ekuphikisweni kokugqoka, amandla, nokumelana nokukhala.
Ngaphezu kwalokho, ayivamisile, ayizwani nokuzwakala, ayinqandeli ilangabi, imelana nokubanda, ayingeni ekugqwaleni, ayimunyi, futhi kulula ukuyifaka.
Ukuze uthole usayizi omkhulu we-polyurethaneama-hydraulic sealszenziwe ngezinto ezifakwa ngaphandle kwamapayipi futhi zigaywe kusetshenziswa ubuchwepheshe bokukhiqiza isikhunta.Ngakho-ke awukho umkhawulo wesikhunta, umkhawulo ojwayelekile nje.Udonga oluncane lungashintshwa ngokusekelwe esimweni somonakalo jikelele we-hydraulic cylinder, futhi ukubekezelelana kwe-dimensional kungahlelwa ngokunengqondo.Ukukhiqizwa nokucutshungulwa kwenziwa ngabantu futhi kuwufanele umkhiqizo.Ukwengeza, i-hydraulic sealing device eyenziwe nge-BD SEALS polyurethane material ayikhubazeki kalula futhi inomsebenzi omuhle kakhulu wokuvala.
1. Ukusebenza kokubeka uphawu.I-PU material hydraulic seal inomphumela omuhle kakhulu wokulwa nokungcolisa futhi ayingenwa kalula izinto zangaphandle, igwema amathonya angaphandle.Ngisho noma kukhona ukungcola phezulu, kungakwanwa
2. Izici zokugaya.Ukumelana nokugqoka kanye nokumelana okuqinile kwe-extrusion.Ama-polyurethane hydraulic seals angaya emuva naphambili ngesivinini esingu-0.05m/s ngaphandle kokumanzisa endaweni yemvelo engama-10MPa amanzi nokucindezela;
3. Ukumelana nokugqoka okuhle kakhulu, izinto ze-polyurethane ngisho nalapho zisetshenziswa kuphethiloli.Uwoyela ongasindi kaphethiloli noma uwoyela wegiya, uwoyela wezimoto, izinto zokuthambisa eziyimishini ezifana nowoyela wezimoto namafutha ngeke kugqwale;
4. Ukusebenza kwesikhathi eside.Ngaphansi kwesimo esifanayo esivamile, ukuphila kokuvaleka kwe-hydraulic kwempahla ye-polyurethane izikhathi ezingu-50 kunezinto ezisekelwe ku-nitrile.(Ngezansi ukuqhathaniswa kokuvalwa komfutho wamanzi nokusebenza kwe-NBR kwempahla ye-methacrylate polyurethane.) Kusukela kulesi simo esilandelayo, kungabonakala ukuthi i-methacrylate polyurethane material hydraulic seal inezinzuzo eziphawulekayo ekuphikisweni kokugqoka, amandla okucindezela, kanye nokubopha kabusha.