Sengoliloeng sena se hlahloba litlamorao tsa taolo ea tsitsipano ea webo nakong ea ho roala theipi ea mocheso o phahameng oa Teflon ho PTFE substrate flatness le ho ts'oana ha sekhomaretsi. Liphello ho flatness ea substrate: tsitsipano e fetang moeli oa rekere e bakang ho otlolla le melala ea polasetiki e ke keng ea qojoa (longitudinal elongation, transverse narrowing), ho theha botsoa, ​​wrinkles le wavy dipaterone; PTFE e kena tlas'a tsitsipano e tsitsitseng e fetoha 'hatsetsi' ka mor'a ho pholile, e baka ho se lekane ha holimo; tsitsipano e sa tsitsang e tsoang ho ho se tsamaisane ho hoholo ha lirolara ho baka mats'oafo a kobehileng, makhopho a bohareng, le matšoao a hlephileng nako le nako.

Sehlooho sena se hlahloba liphetoho tsa meralo ea lesela la PTFE le mocheso o phahameng nakong ea botsofali. Lintlha tse 'nè: PTFE coating microstructure - molecular chain scission and oxidation (carbonyl/carboxyl group formation), liphetoho tsa crystallinity (tsoho ea pele ebe e oa), micro-crack le pinhole formation, holim'a phofo; Glass fiber substrate and interface - sizing/coupling agent decomposition e baka tahlehelo ea bonding, interfacial debonding le delamination (blistering, white areas), glass fiber network khoholeho le embrittlement, alkali metal oxide precipitation e bakang khatello ea maikutlo; Sebopeho le ponahalo ea macroscopic - phetoho ea 'mala (e tšoeu → beige→ sootho → e ntšo), ho honyela ho hoholo le ho kobeha, ho putlama ha bokaholimo le ho lahleheloa ke gloss, phofshoana ha motho a ama, tahlehelo e felletseng ea ho feto-fetoha ha maemo. Moko oa botsofali: ts'ebetso e tsoelang pele ea 'ho silafala ha mokhabiso → ho se sebetse hantle ha sebopeho → ho senyeha ha karoloana.'

Sengoliloeng sena se akaretsa mokhoa oa ho laola nako ea sintering ea lesela la mocheso o phahameng oa PTFE. Mokhoa oa taolo ea mantlha: phetoho ea lebelo la mohala. Sintering nako = bolelele ba karolo e futhumatsang e sebetsang ÷ lebelo la leeto la lesela. Mocheso o sebetsang hantle oa sintering ke 350°C (kaholimo ho thempereichara e baloa joalo ka nako ea sintering). Kabo ea mocheso oa libaka tse ngata: preheating (100-250 ° C), sintering (360-395 ° C), boemo ba mocheso o phahameng (380-390 ° C), ho pholisa (ka tlase ho 300 ° C). Linako tsa litšupiso ho 380-390 ° C: bobebe (0.08-0.13mm) metsotsoana e 30-60; maemo a tloaelehileng (0.18-0.25mm) metsotso e 1.5-3; boima (≥0.35mm) metsotso e 3-5. Ho tsebahatsa le ho lokisoa: ho fokotseha ho tlase (matla a tlase, phokotso ea phofo, mapetsong a manyane) → fokotsa lebelo ho eketsa nako; ho sintering ho feta tekano (mosehla, ho brittleness, mosi o mosoeu) → eketsa lebelo ho khutsufatsa bolulo. Tekano ea nako ea mocheso e lumella ho sintering ka potlako ea mocheso o phahameng (395-405 ° C, metsotsoana) kapa mocheso o tlaase o liehang (360-375 ° C, 5-8 metsotso).

Sehlooho sena se hlalosa mokhoa oa ho fetoha ha matla a momahaneng a PTFE mocheso o phahameng oa mocheso oa tepi ka mor'a botsofali bo phahameng ba mocheso. Mokhoa oa mekhahlelo e meraro: Mokhahlelo oa ho phahama ka mor'a ho folisa (ho pepeseha ha mocheso oa pele ho 200-260 ° C, lihlopha tse setseng tse sebetsang li tsoela pele ho tšela, ho kopana ho eketseha haholo); Mokhahlelo o tsitsitseng oa ho leka-lekanya (ho phethoa ha mekhoa ea ho kopanya, bonngoe bo lula bo tsitsitse ka nako e telele); Sekhahla sa ho senyeha le ho fokotseha (nako e feteletseng / mocheso o baka ho senyeha ha ketane e kholo, momahano oa fokotseha, sekhomaretsi se nolofatsa 'me se fetoha tacky). Lisosa tsa metso ea ho hloleha ha momahano (ho taboha ha ka hare ho siea masala) le ho peperana (ho phalla ho batang ho tloha mapheong ka lebaka la ho fokotseha ha modulus) ho hlahlojoa.

Sengoliloeng sena se qaqisa ts'ebeliso ea lesela la mocheso o phahameng oa Teflon indastering ea matla a letsatsi. Kopo ea mantlha ho lamination ea module: lesela la ho lokolla le behiloeng ka holimo / ka tlase ho li-module tsa PV le thibela EVA e qhibilihisitsoeng (140-150 ° C) ho khomarela platen e futhumatsang kapa poleiti ea rabara, lisebelisoa tse sireletsang le ho etsa bonnete ba hore libaka tse boreleli tsa module; mabanta a conveyor a laminator bakeng sa ho jarolla / ho laolla othomathike; lesela la tšireletso la rabara le lelefatsang bophelo ba tšebeletso. Cell stringer soldering: mabanta a conveyor a tsamaisang lisele le lente ka libaka tsa ho futhumatsa, tse nang le holim'a metsi a se nang lithupa tse hanyetsanang le ho phalla le li-splashes tsa solder; li-cushions tsa sethala sa ho futhumatsa bakeng sa li-workstations tsa soldering. Mocheso o phahameng oa mocheso: ho roala li-tubes tse futhumatsang, li-thermocouples, likhoele ka li-laminator le lionto tse phekolang; thepa e sireletsang mocheso likharetene le lithebe.

Sengoliloeng sena se akaretsa mehato ea pretreatment e hlokahalang bakeng sa lesela la fiberglass pele ho PTFE emulsion impregnation. Mohato oa 1: Phekolo e futhumatsang / dewaxing ka 300-450 ° C ho tlosa boka ba parafine ka botlalo le oli ho tloha ka holim'a fiber ( boka ba parafine, li-starch derivatives), likarolo tse setseng tse hlokahalang ka tlase ho 0.2%, ho hlahisa 'lesela le tlositsoeng mocheso.' Mohato oa 2: Phekolo ea lik'hemik'hale ka holim'a metsi - kopo ea silane, KH-50 KH-50 A-174) ho theha filimi ea bonding ea lik'hemik'hale holim'a fiber, e nolofalletsang borokho ba molek'hule pakeng tsa likhoele tsa khalase le PTFE ea tlhaho; masela a rekisoang esale pele a ka tlola mohato ona empa a tlameha ho netefatsoa. Mohato oa 3: Ho omisa le ho futhumatsa pele - ho omisa ho 80-120 ° C bakeng sa lihora tse 1-2 ho fokotsa mongobo o ka tlase ho 0.1%, ho thibela ho thehoa ha bubble / void nakong ea ho phekola.

Sehlooho sena se fana ka mekhoa ea ho ntlafatsa khanyetso ea creep le botsitso ba nako e telele ea tepi ea Teflon e phahameng ea mocheso. Maqheka a kenyelletsa: Ho ntlafatsa marang-rang a limolek'hule - high MQ silicone resin / gum ratio (1.2: 1-2: 1) e theha libaka tse thata tsa mekhahlelo e thata; ho kenngoa ha lihlopha tsa phenyl (20-30 mol%) ho sitisa ketane ea ketane; crosslink boima ba molek'hule e laoloang ho 5,000-15,000 g / mol; Gradient modulus multilayer sekgomaretsi sebopeho - primer-ankora lera (1-3μm) le silane coupling moemeli, phahameng-modulus momahaneng lera (30-50μm) e le skeleton thiba manganga, viscoelastic tshebetso lera (3-8μm) bakeng sa holim'a metsi; Nanofillers - silika e tukang (10-25 wt%) e nang le phetoho ea bokaholimo e etsa hore ho be le ho hokahana ha 'mele ho fetohang.

Sengoliloeng sena se hlahloba liphetoho tsa sebopeho sa lesela la fiberglass le koahetsoeng ke PTFE libakeng tse senyehang ka lik'hemik'hale. Ho roala ha PTFE ho tsitsitse haholo mecheng e mengata ea litaba (ho kenyeletsoa aqua regia, concentrated acids, organic solvents) - liketane tsa limolek'hule li lula li sa fetohe. Mekhelo: tšepe ea alkali e qhibilihisitsoeng e ntša fluorine e bakang carbonization (e sootho / e ntšo, e brittle); matla a fluorinating agents (F₂, ClF₃) senya mokokotlo oa carbon-carbon; tse ling tsa li-solvents tsa mofuta oa Freon li baka ho ruruha; Li-acid tse chesang tse nang le oxidizing li hlahisa butle lihlopha tsa polar holim'a metsi.

Sengoliloeng sena se qaqisa ts'ebeliso ea lesela la fiberglass le koahetsoeng ke PTFE indastering ea elektroniki le ea motlakase. Libaka tse tšeletseng tse kholo: Insulation le tšireletso ea mocheso o phahameng - motlakase inter-turn/slot/ phase insulation, transformer layer insulation, coil wrapping, ho itšehla thajana ha lisebelisoa tsa motlakase; Copper-clad laminate le PCB tlhahiso - ho lokolla lesela ka PCB lamination, prepreg le CCL hloekileng conveying; Electronic soldering - masking solder bakeng sa wave/reflow soldering (ts'ireletso ea menoana ea khauta), mabanta a conveyor a ontong a phallang, limmete tsa ho sebetsa tsa soldering, likoahelo tse sireletsang lithunya tsa moea o chesang; Lithapo tsa lithapo le lithapo - theipi e koahelang mocheso o phahameng oa mocheso, matsoho a futhumetseng le likoahelo tse sa cheng, mabanta a ho tsamaisa li-tubing a fokotsa mocheso; Anti-static le hloekile - mabanta a conveyor kamoreng e hloekileng le meseme ea ho sebetsa, semiconductor le photovoltaic high-themperature e fetisang.

Sengoliloeng sena se fana ka mekhoa ea tlhahlobo ea thepa e khahlanong le ho khomarela le ho hloekisa habonolo ea lesela la fiberglass e koahetsoeng ke PTFE khahlano le matheba a oli le lerōle. Mekhoa e kenyelletsa: Teko ea ho kopana le matla a holim'a metsi - metsi a kopanang le metsi ka tloaelo>110 °, rolling angle越小越好, matla a holim'a metsi hantle 18-20 mN/m; Teko ea lekhapetla la mochini - matla a peel a 180 ° ka tepi e tloaelehileng, e loketseng <0.1 N/25 mm; Liteko tsa ho hanyetsa oli tse ts'oanelang - mokhoa oa ho thella oa mafura / mokhoa oa ho sala, mokhoa o lekaneng oa ho hlakola ho hloekisa ho sebelisa phapang ea mebala ΔE tekanyo (e nyenyane ΔE = ho hloekisa hantle), le tlhahlobo e potlakileng ea letšoao la oli (ho fokotseha ha enke ho bontša ho thibela ho silafatsa); Teko e khahlanong le lerōle - mokhoa oa ho lokisa lerōle ka tlhahlobo ea setšoantšo, ho tlosoa ha lerōle la moea ho lekanya lebelo le fokolang la ho phatloha, le tlhahlobo ea adsorption ea electrostatic ka ho hanyetsa holim'a metsi; Tlhahlobo ea nako e telele - pheta liteko tsohle ka mor'a botsofali bo phahameng ba mocheso (260°C/300°C) kapa Taber abrasion ho netefatsa botsitso ba nako e telele ea ts'ebetso.