Zihlakazekile PTFE I-Resin Isingeniso
Ukwakheka kokuhlakazwa PTFE I-resin cishe i-100% PTFE (i-polytetrafluoroethylene) i-resin. Zihlakazekile PTFE i-resin ikhiqizwa kusetshenziswa indlela yokusabalalisa futhi ifanelekela i-paste extrusion, eyaziwa nangokuthi i-paste extrusion-grade PTFE inhlaka. Iqukethe izici ezihlukahlukene ezinhle kakhulu ze PTFE i-resin futhi ingacutshungulwa ibe ngobude obuqhubekayo bamashubhu anezindonga ezincane, izinduku, izintambo nokufakwa kwekhebula, ama-gaskets, nokunye.
Isingeniso Senqubo Yokukhiqiza
Abahlakazekile PTFE i-resin powder icindezelwa ngaphambilini ibe yisimo seshidi kusetshenziswa umshini wokugoqa, bese ingena emshinini oshisa izikhotha lapho ishiselwa khona amashumi ambalwa emizuzu ku-200-370°C kanye ne-100 kuya ku-1000 emkhathini wengcindezi ukuze kukhiqizwe impahla yeshidi le-polytetrafluoroethylene. uyaqonda futhi uyazi. Abahlakazekile PTFE i-resin powder ingabuye yengezwe ngokuqondile kwisikhunta futhi ikhiqizwe kunoma yikuphi ukuma kwe PTFE umkhiqizo ngaphansi kwengcindezi ye-200-370 ° C kanye ne-100-1000 atmospheres of pressure. Uma u-1% we-wax kapharafini yengezwa kwabahlakazekile PTFE i-resin, ingagoqwa ngokuphindaphindiwe ukuze ikhiqize PTFE itheyiphu yokufakwa kwepayipi. I-compressor piston ring enkulu enobubanzi obungamamilimitha angu-1050 eyenziwe ngayo inempilo ende eqhubekayo yesevisi. Ukusebenza kwayo okuyinhloko "ukusebenza kokucutshungulwa kwesibili" (okungenziwe i-polymerized ngokugcwele, i-polymerized ngokugcwele ngesikhathi sokucutshungulwa kwesibili), okungasetshenziswa ukwenza noma yikuphi PTFE izingxenye.
Izici Zokuhlakazeka PTFE resin
Abahlakazekile PTFE iyinhlaka eyimpuphu enokusimama okuhle kakhulu kokushisa, ukungangeni kwamakhemikhali okuvelele, izici zikagesi eziphakeme, kanye ne-coefficient ephansi yokungqubuzana. Lezi zici ezivelele zikwenza kube ukukhetha okuhle kwezinhlelo zokusebenza ezihlukahlukene.
Ukusetshenziswa Nezici
Le mikhiqizo yakhelwe ukuthi ixutshwe noketshezi lwemvelo olusetshenziswa njengezithasiselo, futhi ingacutshungulwa kusetshenziswa amasu afana ne-calendering kanye ne-extrusion. Afanele ukukhiqiza izinti ezinosayizi omncane, amashubhu anezindonga ezincane, izendlalelo zokufakwa kwekhebula, namabhande angangenile ngezilinganiso zokucindezelwa okuphakathi nendawo kuya kokuphansi kanye namazinga aphakathi naphansi okukhipha.
Uchungechunge lwe-SFN luhlanganisa i-SFN-1, SFN-3, SFN-A, kanye ne-SFN-5A. Uchungechunge lwe-SFN lunikeza ukumelana kwamakhemikhali okuhle kakhulu, okuhlanganisa ukumelana nama-acids aqinile, ama-alkali, nama-oxidizing agents. Zibonisa ukushisa okuvelele nokumelana nokubanda, nezinga lokushisa lokusetshenziswa lesikhathi eside lika -190°C kuya +250°C. Le mikhiqizo inama-coefficients aphansi e-friction, izici ezinhle kakhulu zokuzithambisa, nokusebenza kukagesi okuphakeme. Akuthintwa izinga lokushisa noma imvamisa, futhi awanamatheli, amunca umswakama, ashise, noma aguge kakhulu ngaphansi kwezimo zomoya. Isetshenziswa kabanzi embonini yamakhemikhali, imishini, i-petroleum, imithi, i-electronics, optics neminye imikhakha.
Abahlakazekile PTFE i-resin ingahlukaniswa ibe yizinhlobo ezimbili: impushana kanye noketshezi lokuhlakazeka okugxilile. Phakathi kwazo, i-powder dispersion resin, ngemva kokuxutshwa nenani elithile lezithasiselo (ezifana ne-petroleum ether) nama-fillers (njenge-quartz powder), ifanele ukubunjwa kokucindezelwa kwemikhiqizo enezindonga ezincane, njengezintambo nezintambo. Isetshenziswa kabanzi embonini yamanje yocingo nekhebula. I-resin eyimpuphu ka-dispersion resin ingacindezelwa ibe yisimo bese igoqwa ibe ifilimu elincanyana (eyaziwa nangokuthi i-tape) ukuze kuhlanganiswe noma kuhlanganiswe izintambo ezinobubanzi bezintambo ezicolekile. I-Polytetrafluoroethylene concentrated dispersion liquid isetshenziselwa kakhulu ukumboza ingaphezulu lezinto ezimbotshana (njenge-asbestos ne-glass fiber weaving) kanye namabheringi ensimbi enziwe ngendlela eyimpuphu ye-metallurgy. Ingilazi fiber ukwaluka ungqimba of PTFE i-electromagnetic wire kanye nocingo olumelana nezinga lokushisa eliphezulu lumbozwe uketshezi olugxilile lokuhlakazeka lwe-polytetrafluoroethylene.