Ukwenza i-PTFE Sleeve Kungani Khetha i-PTFE?

I-PTFE, eyaziwa kangcono ngokuthi i-polymer, i-polymer esiye yazuza ukubaluleka ekusetshenzisweni kwezimboni phakathi nengxenye yesibili yekhulu lamashumi amabili.I-coefficient yayo ephansi ye-friction kanye ne-inertness yenza ifaneleke hhayi kuphela izitsha zokupheka, kodwa futhi nezimpawu zama-valve ezimbonini.Kodwa-ke, okokusebenza kukhombisa izinto ezingafuneki zemishini, njengokuphumuza ingcindezi (okungukuthi ukulahlekelwa ukuqina ngokuhamba kwesikhathi) nokuncika kwezinga lokushisa, okungadala izinkinga kwezinye izinhlelo zokusebenza.

Isicelo esisodwa lapho i-PTFE ifakazele ukuthi inenzuzo kwezinye izinto kusezigxivizo ezisetshenziswa kuma-valve epulaki yezimboni.Ama-valve e-Industrial plug asetshenziselwa ukuthutha uketshezi oluhlukahlukene, futhi ngenxa yalokho angaphansi kwezimo ezinzima, njengokuhlaselwa ngamakhemikhali namazinga okushisa aphakeme.Ama-seal adinga ukuhlangabezana nemfuneko yokumelana namakhemikhali, kuyilapho evimbela ukuvuza ngaso sonke isikhathi.Isifiso sokunciphisa izindleko zokukhiqiza ngenkathi kuthuthukiswa ukusebenza kuholele esidingweni sama-slimmer seals, ngezidingo eziphakeme zezinto.Ukuqonda kahle ukuthi izingcindezi ezingaphakathi kwesigxivizo zisakazwa kanjani kuyadingeka.Ngaphezu kwalokho, isenzakalo sokuphumula kwengcindezi nokuncika kwezinga lokushisa kuyathakazelisa futhi kudinga ukucatshangelwa futhi, ukubikezela ukuziphatha kophawu.

I-PTFE yinto ebusayo esetshenziselwa ukuvala uketshezi ngaphakathi nasemkhathini.Ukubekwa uphawu kwangaphakathi kunikezwa yi-Umkhono we-PTFEecindezelwa phakathi komzimba nepulaki, kuyilapho ukuvala kwangaphandle kuqinisekiswa uphawu oluphezulu lwe-PTFE.

I-PTFE iyipolymer eyatholwa ngo-1938 nguRoy Plunkett weDuPont Company.Isakhiwo sayo samakhemikhali siqukethe amaketanga ama-athomu ekhabhoni ahlanganiswe ndawonye, ​​anamagatsha ama-athomu e-fluorine.Izinto ezisetshenziswayo kuvame ukubizwa nge-polytetrafluoroethylene (PTFE), kuyilapho i-polymer iwuphawu lokuthengisa olubhalisiwe lweNkampani ye-DuPont.

I-PTFE isiphenduke into ebalulekile yobunjiniyela.Izinzuzo zayo ezinkulu uhlamvu lwalo olunganamatheli, ukungabi nalutho, ukumelana nokuhlaselwa kwamakhemikhali namandla aphakeme uma kuqhathaniswa.Ngaphezu kwalokho, izakhiwo ezithile zomzimba zingathuthukiswa ngokungeza ama-filler compounds noma ngokushintsha inqubo yokukhiqiza.Okunye okungalungile ngokomzimba i-PTFE ehlangabezana nakho ukuzwela okuphezulu ekushintsheni kwezinga lokushisa kanye nokumelana okuphansi kokukhasa kanye nokuphumula kwengcindezi.Imvelo eyinkimbinkimbi nengaqondile kakhulu yalezi zici iveza umsebenzi obucayi wanoma yimuphi unjiniyela ofisa ukubikezela ukuziphatha kwe-PTFE.

Okunye okushiyekayo i-PTFE ehlushwa yi-viscosity ephezulu yokuncibilika okwenza umjovo kanye nokubunjwa kwe-blower kungenzeki, okushiya izindlela zokukhiqiza ezibiza kakhulu, ezifana ne-sintering kanye ne-extrusion, okuwukuphela kwezinketho zokukhiqiza ingxenye.