Ifilimu ye-Polyethylene ye-UHMW inokumelana nokuhuzuka okuphezulu kakhulu, okudlula ukumelana nokuhuzuka kwensimbi.Ngokuhambisana nokungazweli kwamakhemikhali okubanzi kanye ne-coefficient ephansi yokungqubuzana kwenza i-UHMW ibe impahla yobunjiniyela eguquguquka kakhulu ekusetshenzisweni kwesevisi eqinile.Iyashelela njenge-polymer® Fluoropolymer, kodwa i-super abrasion futhi ayigugi.I-UHMW Polymers inesisindo samangqamuzana esiphindwe izikhathi ezingu-10 kunesama-polyethylene resins avamile.Isisindo samangqamuzana aphezulu sinikeza i-UHMW Polymers inhlanganisela yayo eyingqayizivele yezimpawu Izinhlelo zokusebenza: Indawo yangaphakathi nangaphandle yamanzi aphuzwayo, amakhemikhali, amafutha kanye namapayipi adonsa amanzi, izindawo ezingaphansi zamabhodi okushibilika eqhweni, olayini bama-chute ukuze kwehliswe ukungqubuzana nokuguga.
Ifilimu yezentengiselwano ye-skived ye-ultra-high molecular-weight polyethylene (UHMWPE) ene-uniaxial orientation1 ephezulu yacwaningwa ngesikhathi sokuncibilika nokucwebezela ngokulungiswa kwesikhathi okungama-30 s ukuze kuhlonzwe izindlela zokucwebezela.
Kutholwe ukuthi ukucwebezela kwe-isotropic kwenzeka noma kunini lapho ukuncibilika kushiselwa ku-140◦C noma ngaphezulu.Ukucwebezela okuqondile kwenzeka, uma ukuncibilika kugcinwa ku-138◦C noma ngaphansi.Izinga lokushisa eliphezulu lokuncibilika kwe-annealing libonakala lingu-136◦C.Kuleli zinga lokushisa i-semicrystalline nanostructure yefilimu yasekuqaleni isulwa ngokuphelele, kuyilapho inkumbulo yokuma kokuncibilika iyalondolozwa.Ngaphezu kwalokho, icrystallization ye-isothermal ayikwazi ukuqaliswa ezingeni lokushisa elingu-110◦C nangaphezulu.Ezingeni lokushisa elingu-105◦C ukucwebezela okuqondisiwe kuqala ngemva kwemizuzu engu-2.5.I-Lamellae enogqinsi olwehla kancane iyakhula ngesikhathi sokushisa okushisayo kwemizuzu engama-20.
Ngesikhathi sokucwebezela okungeyona isothermal okulandelayo (izinga lokupholisa: 20◦C/min) amabhulokhi ekristalu amancane anokuxhumana komakhelwane olandelayo ayakhiwa.Ngakho-ke izindlela zokucwebezela ziyafana nalezo ezitholakala nezinye izinto ze-polyethylene ezinomthamo omkhulu owanele wokubopha amaketanga afundwe ngaphambili, ngaphandle kokupholisa okuncane okudingekayo ukuze kuqaliswe ukucwebezela kwe-isothermal.
Ukuhlaziywa kwedatha emkhathini wangempela kusetshenziswa i-CDF enezinhlangothi eziningi kwenziwe.Ngesikhathi sokuncibilika kwezinto ukuqina okumaphakathi kwezingqimba zekristalu kuhlala kungashintshile (27 nm), kuyilapho isikhathi eside sikhula kakhulu sisuka ku-60 nm siye ku-140 nm.Ngoba ukuhlaziya kubonisa ukuthi ngisho ne-nanostructure yasekuqaleni ibuswa ukuhlobana komakhelwane kuphela lokhu kusho ukuthi ukuzinza kwe-lamella kukhula ngokukhululekile njengomsebenzi webanga eliya komakhelwane bayo.Ngenkathi isakhiwo sangempela sibonisa i-lamellae enwetshiwe, izizinda ezenziwe kabusha azibanzi kunebanga eliphakathi kwazo ku-fiber direction s3.
Izicelo zifaka phakathi ulayini we-conveyor, ama-rails aqondisayo, ama-chute liner, ama-chain guide, ama-drawer glide kanye nokunciphisa umsindo.I-abrasion enhle kakhulu nokumelana nokugqoka.
Isikhathi sokuthumela: Jun-17-2017