PTFE yubushyuhe bwo hejuru bukoreshwa mubisabwa guhuza ibiryo bigomba kuguma mubipimo byubushyuhe bwasobanuwe: 60260 ° C kugirango ukoreshe ubudahwema, 00300 ° C kumpinga ngufi (iminota), kandi ntuzigera hejuru ya 327 ° C (kubora). Amabwiriza ya FDA na EU ntagaragaza igihe ntarengwa - igihe cyo guhura neza giterwa nubushyuhe kandi bigomba kugenzurwa nibizamini byimuka bigereranya ibihe bifatika.

Imyenda ya PTFE yubushyuhe bwo hejuru hamwe nigitambara cya silicone byombi bikoresha umwenda wa fiberglass nkibanze ariko bitandukanye mubikoresho byo gutwikira (PTFE resin vs silicone rubber). PTFE irusha abandi inkoni, kwambara, no kurwanya imiti igera kuri 260 ° C. Umwenda wa Silicone utanga ibintu byoroshye guhinduka, kubika amashanyarazi, no kurwanya umuriro (kugeza kuri 230 ° C). Hitamo ukurikije ibyo ushyira imbere.

Imyenda ya PTFE yubushyuhe bwo hejuru (PTFE membrane material) ni ihitamo ryiza kubwubatsi bubi. Ibyiza byingenzi: ubuzima bwimyaka 30+ yo hanze, kwisukura hejuru (amazi yimvura yoza umwanda), kohereza urumuri rworoshye (6-13%), Urwego rwumuriro A, nimbaraga zisa nicyuma munsi ya 1.5 kg / m². Ikoreshwa muri stade, ibibuga byindege, ninyubako zishushanyije kwisi yose.

PTFE yubushyuhe bwo hejuru busaba ububiko bukwiye kugirango bugumane, bworoshye, kandi burekure imikorere. Ibisabwa byingenzi birimo kugenzura ubushyuhe (10-30 ° C), ubuhehere buri munsi ya 60%, kwirinda urumuri, kwigunga imiti, gushyira vertical, no guhumeka. Kurikiza imicungire ya FIFO kandi ugenzure buri gihe.

Guhitamo iburyo bwa PTFE yubushyuhe bwo hejuru kuburiri bushyushye bwa printer ya 3D bisaba kwibanda kubipimo bine byingenzi: kurwanya ubushyuhe (kugeza kuri 260 ° C +), substrate ya fiberglass-yongerewe imbaraga (0.18mm nziza), silicone ifata inyuma hamwe nubuso butagaragara, hamwe n'ubugari bukwiye / kwihanganira. Aka gatabo kagufasha kwirinda kurigata, ibisigara, no gucapa kunanirwa.

Ubushyuhe bwikirahure (Tg) bwa silicone yumuvuduko ukabije ni -120 ° C - munsi cyane ugereranije na acrylic. Iyi ultra-low Tg ituma PTFE yubushyuhe bwo hejuru ya kaseti ihindagurika kandi ikomera ndetse no kuri -70 ° C, ikarinda gucika intege kandi igafasha kwizerwa mubikorwa bya cryogenic.

PTFE yubushyuhe bwo hejuru irashobora guturika cyangwa kuvunika mugihe cyunamye no gufungura. Iyi ngingo isobanura uburyo bwo kwirinda ibi binyuze mu guhitamo neza substrate (fibre fibre yongerewe imbaraga), uburebure bwiza (0.18mm nkibisanzwe), guhitamo silicone, hamwe nubuhanga bwo kwishyiriraho.

Imyenda ya PTFE yubushyuhe bwo hejuru itanga imiti idasanzwe yo kurwanya imiti, irwanya aside ikomeye, alkalis, ibishishwa kama, hamwe na gaze yangirika. Iyi ngingo irambuye ibintu birwanya imbaraga zayo, imbogamizi (ibyuma bya alkali byashongeshejwe, imiti ikomeye ya fluorine), nibintu byingenzi nkubushyuhe, kwibanda, hamwe no guhangayika.

Guhitamo impapuro zo gusohora cyangwa firime substrate no kurekura bigira ingaruka itaziguye kububiko no gukuramo imikorere ya PTFE yubushyuhe bwo hejuru. Iyi ngingo igereranya PET na kraft impapuro substrates hamwe na silicone na fluorine yo kurekura, byerekana uburyo bwiza bwo guhuza ibishishwa bya zeru-bisigara kandi byizewe igihe kirekire.

Kaseti ya PTFE yubushyuhe bwo hejuru ikoreshwa cyane mugukoresha amashanyarazi, ariko ibihe byinshi hamwe na voltage nyinshi bitera ingaruka zidasanzwe: gusenyuka kwamashanyarazi, gusohora igice, gusaza kwumuriro, gutakaza ibimenyetso byumuvuduko mwinshi, no kumva ibidukikije. Iyi ngingo isobanura buri kaga nuburyo bwo kubyirinda.