Lesi sihloko sichaza ngokusetshenziswa kwendwangu ye-fiberglass ehlanganiswe ne-PTFE embonini yezogesi kanye nogesi. Izindawo eziyisithupha eziyinhloko: Ukushisa nokushisa okuphezulu kakhulu - ukufakwa kwe-motor inter-turn/slot/phase insulation, i-transformer layer insulation, ukugoqa ikhoyili, ukuhlukaniswa kwemishini yokushisisa kagesi; Ukukhiqizwa kwe-copper-clad laminate kanye ne-PCB - indwangu yokukhulula ku-PCB lamination, prepreg kanye ne-CCL ehlanzekile yokudlulisa; I-elekthronikhi i-soldering — imaski ye-solder ye-wave/reflow soldering (ukuvikela umunwe wegolide), amabhande okuhambisa kuhhavini agelezayo, omata bendawo yokusebenzela, amakhava okuvikela isibhamu somoya oshisayo; Ikhebula nezintambo zokubopha — itheyiphu yokugoqa ikhebula lokushisa eliphezulu, imikhono eshisayo kanye namakhava angashi, amabhande okuhambisa amashubhu ancipha ukushisa; I-Anti-static kanye ne-cleanroom - amabhande okuthutha egumbi elihlanzekile kanye nomata bendawo yokusebenza, i-semiconductor kanye ne-photovoltaic yokushisa ephezulu yokushisa.

Lesi sihloko sethula izindlela zokuhlola zokunqanda ukunamathela kanye nezakhiwo zokuhlanza kalula zendwangu ye-fiberglass ehlanganiswe ne-PTFE ngokumelene namabala kawoyela nothuli. Izindlela zifaka: I-engeli yokuxhumana kanye nokuhlola amandla angaphezulu — i-engeli yokuthinta amanzi ngokuvamile >110°, i-rolling angle越小越好, amandla angaphezulu ku-18-20 mN/m; Ukuhlolwa kwekhasi lomshini — amandla e-peel angu-180° anetheyiphu evamile, ekahle <0.1 N/25 mm; Ukuhlolwa okulingisiwe kokumelana nowoyela — indlela yokushelela/yensalela yebala likawoyela, ukusebenza kahle kokuhlanza kokusula kusetshenziswa umehluko wombala ΔE isilinganiso (esincane ΔE = ukuhlanzwa okungcono), kanye nokuhlola komaka okunamafutha okusheshayo (ukuncipha kukayinki kubonisa ukunqanda ukungcola); Ukuhlola uthuli - indlela yokulungisa uthuli ngokuhlaziywa kwesithombe, ukususwa kothuli lokugeleza komoya okulinganisa ubuncane besivinini sokuphehla, kanye nokuhlolwa kwe-electrostatic adsorption ngokusebenzisa ukumelana nendawo; Ukuhlola ukuqina — phinda zonke izivivinyo ngemva kokuguga okunezinga lokushisa eliphezulu (260°C/300°C) noma ukuhuzuka kwe-Taber ukuze kuqinisekiswe ukuqina kokusebenza kwesikhathi eside.

Lesi sihloko sihlanganisa ukusetshenziswa kwendwangu ye-Teflon high-temperature (indwangu ye-fiberglass eboshwe nge-PTFE) emkhakheni we-aerospace. Izindawo zesicelo esibalulekile: Ukukhiqizwa kwezinto ezihlanganisiwe - indwangu yokukhulula / ifilimu ekubunjweni kwe-autoclave, izendlalelo zokuhlukanisa, amabhande okuthutha asezingeni eliphezulu okukhiqizwa kwangaphambili; Injini kanye nokuvikelwa kokushisa okushisayo okuphezulu - izingubo zokuvala ezishisayo, i-firewall cladding, ukuxhumana okuguquguqukayo okunokushisa okuphezulu; Ukufakwa kukagesi nokuvikela izintambo zezintambo - ukusonga ikhebula emagumbini enjini kanye nezindawo zokumisa amagiya; Ingaphakathi lendiza kanye nokuvikela umlilo — amakhethini omlilo/izithiyo zentuthu ezihlangabezana nezindinganiso ze-FST, ukumbozwa kwengubo yokuvala okushisayo/okuzwakalayo; Izinhlelo zokusebenza ze-Space kanye ne-aerospace - ama-multi-layer insulation (MLI) ama-assemblies, ama-anti-cold-weld lubrication liner wezindlela zokuthunyelwa kwamaphaneli elanga namahinge e-antenna, indwangu yokulawula ukushisa.

Lesi sihloko sichaza ukuthi i-PTFE inamathela kanjani ku-fiberglass fabric substrate engutsheni ye-Teflon enezinga eliphezulu lokushisa. Ukuhlanganiswa kwamakhemikhali okuqondile akunakwenzeka ngenxa yamandla angaphezulu aphansi we-PTFE. Ukubophezela kufinyelelwa: Ukuxhumanisa ngomshini (ukubopha ngokomzimba) - I-emulsion ye-PTFE ingena ezikhaleni ze-fiber futhi ibambe izinyanda ze-fiber ngemva kokucwiliswa; I-Silane coupling agent pretreatment - yenza ibhuloho lamangqamuzana phakathi kwemicu yengilazi ye-inorganic kanye ne-organic primer; Isendlalelo se-Chemical primer transition layer — kusetshenziswa i-PAI, i-PPS, i-PES noma i-PEEK resins ene-PTFE micropowder, esetshenziswa ngemva kokuhlanganisa ukwelashwa ukuze kwakheke ungqimba oluqinile loguquko; I-hot-melt adhesive adhesive film lamination — Amafilimu e-FEP noma e-PFA (iphuzu elincibilikayo elingu-260-310°C) ahlanganisa amafilimu e-PTFE enziwe ngaphambilini endwangu; Isakhiwo segrediyenti ngemijikelezo yokufakwa okuningi kanye ne-sintering — nciphisa iphasi yokuqala nge-binder/coupling ingena ijule kumafayibha, ilandelwe ukufakwa okumsulwa kwe-PTFE, idala ukuhleleka kwegradient kusuka ku-fiberglass kuya ku-PTFE emsulwa.

Lesi sihloko sikhuluma ngendlela idizayini yesakhiwo esine-microporous ye-Teflon ephefumulayo (PTFE) yetheyiphu yokushisa ephezulu ebhalansisa ukungeneka komoya nge-insulation kanye nezakhiwo ezinganamathi. Ukungqubuzana okuyinhloko: ukungena komoya kudinga izimbotshana ezivulekile, kuyilapho ukwahlukanisa kudinga ukuminyana futhi okunganamathi kudinga izindawo ezibushelelezi. Amasu okuklama okulinganiselayo: lawula isilinganiso se-pore ububanzi (0.1-2μm, ngokufanelekile <0.5μm) ukuvimbela ukungena okuncibilika nokugcina i-voltage yokuphuka; lawula i-porosity ku-50-70% (≈60% ngokulungile) ukufeza i-Gurley 20-100s/100cc namandla e-dielectric ≥2kV yefilimu engu-0.13mm; sebenzisa ukwakheka kwezimbotshana zenethiwekhi ye-3D ene-tortuosity ephezulu (τ≈2.5-4) ukucindezela iziteshi zokuphuma eziqondile; ukwakha imbobo ye-asymmetric gradient pore enesendlalelo sesikhumba esiminyene (1-5μm) sokungeyona induku/i-insulation kanye nengaphakathi elinezimbotshana zokuphefumula; sebenzisa i-super-oleophobic/hydrophobic surface post-treatment ngaphandle kokuvaleka kwezimbotshana.

Lesi sihloko sethula izinzuzo zendwangu ye-PTFE yokushisa okuphezulu njengemidiya yesihlungi sezinga lokushisa eliphezulu. Amandla ayisihluthulelo ayisithupha: Ukumelana nokushisa okuvelele (okuqhubekayo okungu-260 ° C, ukuphakama ~ 300 ° C), okudlula i-PPS (190 ° C) ne-aramid (200 ° C); Ukungasebenzi kwamakhemikhali okwedlulele ngokumelene nama-asidi, ama-alkali, izinyibilikisi nama-oxidants, ukumelana ne-hydrolysis, i-aramid esebenza kahle kakhulu kanye ne-P84 kugesi eshisa izikhotha; Ukusebenza okuphezulu kokuhlanza uthuli okunamandla angaphezulu aphansi okwenza kube lula ukususa ikhekhe lothuli kanye nokwehla kwengcindezi ephansi; Ukusebenza kahle kokuhlunga ngosayizi wezimbotshana ezingu-0.1-3μm ezithatha ngaphezu kuka-99.99% wezinhlayiya ze-PM2.5; Ukungashi nge-LOI ngaphezu kwama-95%, kunezinketho zokulwa ne-static ezitholakalayo; Amandla okusebenza aphezulu avela ekuqinisweni kwe-fiberglass, enemidiya yefayibha ye-PTFE ehlanzekile enikeza ukuguquguquka kanye > nempilo yesevisi yeminyaka emi-4. Iqhathanisa kahle ne-PPS, i-aramid, i-Nomex, i-P84 kanye nemidiya yesihlungi se-fiberglass kuwo wonke amazinga okushisa, ukumelana namakhemikhali, ukumelana ne-hydrolysis kanye nokusebenza kokuhlanza.

Lesi sihloko sihlinzeka ngezixazululo ezihlelekile zokuvimbela izinsalela zokunamathela nokopha okunamathelayo uma usebenzisa i-PTFE itheyiphu yokushisa ephezulu ukuvikela iminwe yegolide ye-PCB ngesikhathi somhlangano we-SMT. Ukuhlaziywa kwembangela yezimpande: izinsalela zivela ekuhlulekeni okuhlangene noma ukudluliswa okuhlangene; ukopha kwenzeka ngenxa yokwehla kwe-viscosity kanye nokuchichima kokunamathela ngaphansi kokushisa okugelezayo. Isixazululo esiyinhloko ukukhetha itheyiphu efanele: i-silicone PSA enokuphakama kwesikhashana okungu-≥300°C, okuqhubekayo ≥260°C, ukujiya okuphelele okungu-0.08-0.13mm okunezendlalelo ezinamathelayo ezinamathelayo ezihlangene eziphezulu, nesitifiketi esivimbela ukopha/insalela. Ukulawula inqubo yezinyathelo eziyisithupha: ukuhlanzwa kwangaphambili kwe-lamination nge-IPA; I-lamination ye-zero-tension nge-air evacuation egcwele; iphrofayili yethempelesha elungiselelwe ukugeleza kabusha ngokufudumeza okuthambile (<2°C/s); ukuxebuka okubandayo ngaphansi kuka-50°C nge-engeli engu-180°; ukucubungula ngokushesha phakathi kwamahora angama-24 nokusetshenziswa kanye kuphela; ukuphatha ukwehluleka ngokusula kwe-IPA kanye nokuhlolwa kwesikhulisi esingu-40-50x. Kuma-PCB anezinhlangothi ezimbili, buyisela itheyiphu entsha ngaphambi kokucutshungulwa kohlangothi lwesibili.

Lesi sihloko sinikeza isiqondiso esihlelekile sokuvimbela imibimbi engutsheni ye-PTFE enezinga lokushisa eliphezulu ngesikhathi sokushisa. Imibimbi ibangelwa ngokuyisisekelo ukuncipha kokushisa okungalingani kanye nokucindezeleka okungaguquki. Izixazululo zihlanganisa ukugeleza komsebenzi okugcwele: ukulawulwa kwe-substrate yezinto ezingavuthiwe (ukukhishwa okuphelele kwe-dewaxing / ukushisa ukuze kuqedwe ukucindezeleka kwangaphakathi); ukukhulelwa nokomisa (izingubo ezincanyana eziningi, i-gradient yokushisa emnene, ama-drive rollers asebenzayo); isilawuli sesithando somlilo (i-1-3% i-overfeed yesibonelelo sokuncipha okushisayo, isilawuli se-micro-tension se-closed-loop, ukufana kwezinga lokushisa okuguquguqukayo phakathi kuka-±5°C, ijika lokupholisa le-gradient preheating-sintering-cooling, izithando zomoya ezintantayo njengesixazululo esilungile, amarola okusakaza agobile); ukupholisa nokusetha (ukupholisa kancane kancane, gcina ukusabalala kuze kube ngaphansi kuka-100°C, ukupholisa okugcwele ngaphambi kokusongwa); ukuqapha okuku-inthanethi ngokuhlola ukukhanya okuqinile nokuskena kwe-infrared.

Lesi sihloko sihlaziya ukuthi ukwelashwa kwe-sandblasting noma ukuqeda i-matt kusithinta kanjani isakhiwo esingaphezulu sendwangu ye-PTFE yezinga lokushisa eliphezulu. Ushintsho lwenzeka ngezinhlangothi ezintathu: I-Microscopic morphology ishintsha isuka ebushelelezi njengesibuko iye ekuthungeni kwe-gully emaholoholo ngamavelu akhuphuke ngokucijile e-Ra/Rz, idale izakhiwo zokunamathisela ze-3D zokuhlanganisa ukuze kuhlanganiswe okulandelayo. Ubuqotho bokwemboza bubhekene nezingozi: Ukuncipha kongqimba lwe-PTFE, ukuchayeka okungaba khona kwe-fiberglass substrate (okubangela ukulahleka kwempahla engagxili, ukungena komswakamo, namandla okusebenza ancishisiwe), kanye nama-microcracks kanye nokukhiqizwa kwemfucumfucu.

Lesi sihloko sethula inqubo eyisisekelo ephelele yokumithisa indwangu ye-fiberglass nge-emulsion ye-PTFE. Izinyathelo eziyisikhombisa eziyisihluthulelo: ① Ukwelashwa ngaphambi kwesikhathi (i-dewaxing/desizing) ku-350-400°C ukuze kukhishwe ama-ejenti wokulinganisa izindwangu; ② Ukwakhiwa kwe-emulsion enokuqukethwe okuqinile okungu-40-55% nama-surfactants ukuze kuthuthukiswe ukumanzisa; ③ Ukukhulelwa ngendlela yokucwilisa noma i-blade kadokotela; ④ Ukomisa ku-100-150°C ukuze uhwamulise amanzi kancane bese wenza ifilimu eyomile ye-PTFE; ⑤ Sintering at 360-390°C (kufika ku-400°C) ukuncibilikisa izinhlayiya ze-PTFE zibe ifilimu eqhubekayo; ⑥ I-Multi-cycle impregnation-drying-sintering ephindaphindwa izikhathi ezingu-2-4 ukuze kufinyelelwe ukujiya okuqondisiwe nokuqukethwe kwenhlaka (45-65%); ⑦ Ukwelashwa kwangemva kokwelashwa okuhlanganisa nokwelashwa kwe-corona, ukusikwa onqenqemeni, ukusonga kanye nokuhlolwa kwekhwalithi. Amaphuzu okulawula abalulekile: ukucwiliswa kwe-waxing okuphelele, ukumanzisa i-emulsion egcwele, ukomisa kancane kancane, izinga lokushisa elinembile le-sintering, kanye nokuminyana okunamathelayo okungaguquki. Imikhiqizo inikeza ama-laminates ane-copper-clad high-frequency, amabhande okuthutha asezingeni eliphezulu kanye nezinto zokwakha ze-membrane yezakhiwo.