Iyi ngingo ikubiyemo imikorere ya PTFE mumashanyarazi ya misile. Uburyo bune: Kwangirika kwa Endothermic - PTFE depolymerize kuri ~ 400 ° C kugeza tetrafluoroethylene (endothermic cyane, ~ 3000 ° C ya gaze yaka umuriro), ikurura ubushyuhe bwinshi kandi ikuramo ingufu zumuriro hejuru yurukuta. Gukonjesha Transpiration hamwe na gaze ya gaz - imyuka yangirika (tetrafluoroethylene) yinjira hanze ikoresheje micro-pore, ikuraho ubushyuhe bwo hejuru; firime ya gazi itemba itandukanya gaze yubushyuhe bwo hejuru kurukuta, igabanya ubushyuhe bwurukuta hafi ya> 50%; gazi ya gaz ihindura imipaka yumuvuduko / ubushyuhe, kugabanya isuri.

Iyi ngingo ikubiyemo imyenda ya Teflon yubushyuhe bwo hejuru (umwenda wa PTFE ushyizweho na fiberglass) mu kirere. Ahantu h'ingenzi hasabwa: Gukora ibikoresho - gusohora imyenda / firime muburyo bwa autoclave, ibice byitaruye, imikandara yubushyuhe bwo hejuru kugirango ikorwe mbere; Moteri hamwe nubushyuhe bwo hejuru bwo kurinda ubushyuhe - ibiringiti byo kubika ubushyuhe, gutwika firewall, guhuza ubushyuhe bworoshye; Gukingira amashanyarazi no kurinda insinga - gupfunyika insinga mu bice bya moteri hamwe n’ibikoresho byo kugwa; Imbere mu ndege no kurinda umuriro - umwenda utwika / inzitizi z'umwotsi zujuje ubuziranenge bwa FST, igitambaro cyo gutwika ubushyuhe / acoustic; Ikoreshwa mu kirere no mu kirere - guteranya ibyiciro byinshi (MLI), inteko zirwanya ubukonje-weld amavuta yo gukoresha imirasire y'izuba hamwe na antenna hinges, igitambaro cyo kugenzura ubushyuhe.

Iyi ngingo isesengura uburyo kuvura umucanga cyangwa kurangiza kurangiza bigira ingaruka kumiterere yimyenda ya PTFE yubushyuhe bwo hejuru. Impinduka zibaho mubice bitatu: Microscopique morphologie ihinduka kuva mumirorerwamo yoroshye isa nkimiterere ya gully yuzuye hamwe nagaciro ka Ra / Rz byiyongereye cyane, bigashiraho uburyo bwa 3D bwububiko bwa tekinike kugirango buhuze nyuma. Ubusugire bwa coating burahura ningaruka: PTFE igabanutse, ishobora guhura na fiberglass substrate (itera igihombo cyumutungo utari inkoni, kwinjiza amazi, no kugabanya imbaraga za mashini), wongeyeho microcrack hamwe no kubyara imyanda.

Iyi ngingo itangiza inzira yuzuye yo gutera inda ya fiberglass hamwe na emulion ya PTFE. Intambwe ndwi zingenzi: ret Kwitegura (dewaxing / desizing) kuri 350-400 ° C kugirango ukureho imyenda ingana; Formul Amuliyoni hamwe na 40-55% yibirimo bikomeye hamwe na surfactants zo kunoza neza; Gutera inda hakoreshejwe uburyo bwo kwibiza cyangwa gutwikira umuganga; Kuma kuri 100-150 ° C kugirango umwuka uhumeke neza hanyuma ukore firime yumye ya PTFE; Gutera kuri 360-390 ° C (kugeza kuri 400 ° C) gushonga ibice bya PTFE muri firime ikomeza; I Inzinguzingo nyinshi-inregnation-yumye-gucumura inshuro 2-4 kugirango ugere kubyimbye bigenewe hamwe na resin (45-65%); ⑦ Nyuma yubuvuzi burimo kuvura corona, gutema impande, guhinduranya no kugenzura ubuziranenge. Ingingo zingenzi zo kugenzura: gutembera byuzuye, guhanagura kwa emulsiyo yuzuye, gukama buhoro buhoro, ubushyuhe bwuzuye bwo gucumura, hamwe nuburinganire bwuzuye. Ibicuruzwa bitanga umurongo mwinshi wumuringa wambaye laminates, imikandara yubushyuhe bwo hejuru hamwe nibikoresho byububiko.

Iyi tekinike ngufi ya Jiangsu Aokai isesengura uburyo ubushyuhe bukabije cyangwa bukabije bwangiza PTFE igitambaro cyo hejuru. Gucumura gake gusiga ibice bidashongeshejwe, bigatera micro-pores, guhuza intege-substrate guhuza, hejuru yimiterere, imbaraga zubukanishi, no kugaragara kwamata. Ubushyuhe bukabije butera PTFE kwangirika k'ubushyuhe, kubyara pinholes, ibibyimba, ubukana, ibara ry'umuhondo-umukara, no kurekura imyuka y'ubumara. Izi ntagondwa zombi zisenya ubwitonzi, imikorere idakomeye, guhinduka, guhindagurika, no guhagarara neza.

Calendering - gukanda umwenda usize PTFE hagati yindorerwamo zindorerwamo zishyushye kuri 360-380 ° C - uhindura cyane morfologiya yubuso, kurekura ibintu, kudahinduka, hamwe nubukanishi. Igabanya ubukana kuva kuri Ra 0.5-1.0 mkm kugeza kuri <0,05 mm, ifunga pinholes, itezimbere imyambarire, ariko igabanya imbaraga zamarira no guhinduka. Ibyingenzi kurekura imirongo hamwe no gukwirakwiza amashanyarazi.

Nkumushinga wumwuga wimyenda ya PTFE yubushyuhe bwo hejuru, Jiangsu Aokai Ibikoresho bishya biguha ubushishozi bwumwuga. Intego yibanze yo kuvura fibre yububiko ni ukubaka ikiraro cya molekuline hagati ya fiberglass organic organique na PTFE kama, kugirango bikemure byimazeyo inc