Sengoliloeng sena se bua ka mesebetsi ea PTFE ka har'a meaho e futhumatsang ea li-missile. Mekhoa e mene: Endothermic decomposition — PTFE depolymerizes at ~ 400 ° C ho tetrafluoroethylene (high endothermic, ~ 3,000 ° C conmbustion gas exposure), e monyang mocheso o moholo le ho ntša matla a mocheso ho tloha leboteng. Pholiso ea transpiration le ho kenya filimi ea khase - likhase tsa ho bola (tetrafluoroethylene) li kenella ka ntle ka li-micro-pores, li tlosa mocheso o holim'a metsi; filimi ea khase e phallang e arola khase e tukang ea mocheso o phahameng leboteng, e fokotsa mocheso o haufi le lebota ka > 50%; filimi ea khase e fetola lebelo / mocheso oa moeli oa moeli, e fokotsa khoholeho ea likaroloana.

Sengoliloeng sena se akaretsa ts'ebeliso ea lesela la mocheso o phahameng oa Teflon (PTFE-coated fiberglass fabric) lebaleng la sefofane. Libaka tse ka sehloohong tsa ts'ebeliso: Ho etsa thepa e entsoeng ka motsoako - ho lokolla lesela / filimi ka ho bopa ha autoclave, likarolo tsa ho itšehla thajana, mabanta a mocheso o phahameng oa mocheso bakeng sa tlhahiso ea prepreg; Tšireletso ea mocheso oa enjene le mocheso o phahameng - likobo tse thibelang mocheso, li-firewall cladding, lihokelo tse feto-fetohang tsa mocheso o phahameng; Tšireletso ea motlakase le ts'ireletso ea lithapo - ho phuthela ha cable ka likamoreng tsa enjene le libaka tsa lisebelisoa tsa ho lulisa; Bokahare ba lifofane le tšireletso ea mollo - likharetene tsa mollo / litšitiso tsa mosi tse finyellang litekanyetso tsa FST, ho roala kobo ea ho futhumatsa mocheso / acoustic; Lisebelisoa tsa sebaka le sepakapaka - likopano tse nang le li-multi-layer insulation (MLI), li-anti-cold-weld lubrication liner bakeng sa mekhoa ea ho tsamaisa lisebelisoa tsa letsatsi le li-antenna, lesela la ho laola mocheso.

Sehlooho sena se hlahloba kamoo sandblasting kapa matt finishing treatment e amang sebopeho sa bokaholimo ba lesela la mocheso o phahameng oa PTFE. Liphetoho li etsahala ka litekanyo tse tharo: Microscopic morphology e fetoha ho tloha ho seipone se boreleli ho ea ho sebopeho se makukuno se nang le boleng bo phahameng ba Ra/Rz, ho theha 3D mechanical anchoring structures bakeng sa tlamahano e latelang. Botšepehi ba ho roala bo tobane le likotsi: PTFE layer thinning, exposure ea fiberglass substrate (e bakang tahlehelo ea thepa e sa thupeng, ho kenella ha mongobo, le ho fokotsa matla a mochine), hammoho le microcracks le litšila.

Sengoliloeng sena se hlahisa ts'ebetso e felletseng ea ho kenya lesela la fiberglass ka emulsion ea PTFE. Mehato e supileng ea bohlokoa: ① Pretreatment (dewaxing/desizing) ka 350-400°C ho tlosa lisebelisoa tsa boholo ba masela; ② Tlhahiso ea emulsion e nang le 40-55% e tiileng le li-surfactants bakeng sa ho koloba hantle; ③ Ho ima ka mokhoa oa dip-squeeze kapa ho roala ka lehare la ngaka; ④ Ho omisa ho 100-150 ° C ho fetola metsi ka bonolo 'me u thehe filimi e omileng ea PTFE; ⑤ Sintering ho 360-390 ° C (ho fihlela ho 400 ° C) ho qhibilihisa likaroloana tsa PTFE ka filimi e tsoelang pele; ⑥ Multi-cycle impregnation-drying-sintering e pheta-pheta makhetlo a 2-4 ho fihlela botenya ba sepheo le lihlahisoa tsa resin (45-65%); ⑦ Kalafo ea morao-rao e kenyeletsang phekolo ea corona, ho fokotsa moeli, ho koala le ho hlahloba boleng. Lintlha tsa taolo ea mantlha: dewaxing e felletseng, ho kolobisa ka botlalo emulsion, ho omisa butle-butle, mocheso o nepahetseng oa sintering, le letsoalo le sa fetoheng la ho roala. Lihlahisoa li fana ka li-laminate tsa koporo tse nang le maqhubu a phahameng, mabanta a conveyor a mocheso o phahameng le lisebelisoa tsa meralo ea meralo.

Kakaretso ena ea tekheniki e tsoang ho Jiangsu Aokai e sekaseka kamoo mocheso o tlase haholo kapa o phahameng oa sintering o senyang lesela la mocheso o phahameng oa PTFE. Mahlaseli a tlaase a sintering a sa qhibiliha, 'me a baka li-micro-pores, li-coat-substrate bonding tse fokolang, libaka tse mahoashe, matla a fokolang a mochine, le ponahalo ea milky opaque. Ho futhumala ho feteletseng ho baka PTFE ho senyeha ha mocheso, ho hlahisa masoba, lipululana, brittleness, mosehla ho ea ho o motšo, le ho ntša mosi o chefo. Likarolo tsena ka bobeli li senya tšubuhlellano, ts'ebetso e se nang thupa, ho tenyetseha, ho kenya letsoho, le botsitso ba sebopeho.

Calendering - ho hatella lesela le koahetsoeng ke PTFE pakeng tsa lirolara tsa seipone tse futhumetseng ka 360-380 ° C - ho fetola ka mokhoa o makatsang sebopeho sa bokaholimo, thepa ea ho lokolla, ho se khonehe, le ts'ebetso ea mochini. E fokotsa boima ho tloha ho Ra 0.5-1.0 μm ho <0.05 μm, e tiisa li-pinholes, e ntlafatsa ho hanyetsa ho apara, empa e fokotsa matla a ho taboha le ho feto-fetoha ha maemo. E bohlokoa bakeng sa ho lokolla li-liner le ho kenya motlakase.

Joaloka moetsi ea hloahloa oa masela a PTFE a mocheso o phahameng, Jiangsu Aokai New Materials e u fa leseli la litsebi. Morero oa mantlha oa kalafo ea bokaholimo ba fiberglass ke ho aha borokho ba limolek'hule lipakeng tsa inorganic fiberglass le organic PTFE, e le ho rarolla mathata a bona a tlhaho.