Ukufakwa kwe-PTFE okungalingani kuholela emidwebeni, emigodini, ekubeni phuzi, noma ekusebenzeni okungaguquki kwenduku. Kuzinhlelo zokusebenza ezifana namabhande okuvala ukushisa, amabhande okuthutha, namalayini akhululayo, ukufana kwamabhilidi kuthinta ngqo ikhwalithi yomkhiqizo nempilo yesevisi.
Yini ebangela ukunamathisa okungalingani? Impendulo ihlanganisa imikhakha emine: ukwakheka kokumboza, inqubo yokuhlanganisa & yokugcoba, ikhwalithi ye-substrate, nendawo yokukhiqiza.
I-Aokai PTFE ithuthukise lezi zici ezinkulungwaneni zokwenziwa kokukhiqiza. Lesi sihloko sichaza isici ngasinye nokuthi singazilawula kanjani ngekhwalithi ephezulu, umfaniswano Indwangu eboshwe nge-PTFE.
Ipharamitha Yokwakha |
Ibanga elikahle / Imfuneko |
Kungani Kubalulekile? |
PTFE usayizi wezinhlayiyana |
0.15 – 0.35 μm (D50) |
Ukusabalalisa okubanzi ngokweqile kuphazamisa ukungena kwe-substrate nokusebenza kokwenza ifilimu |
Isisindo samangqamuzana & viscosity |
Ibhalansile - hhayi phezulu kakhulu noma phansi kakhulu |
I-viscosity ye-slurry engavamile ivimbela ngokuqondile ngisho nokusabalalisa |
Okuqukethwe okuqinile |
60±2% (okujwayelekile ngokukhulelwa) |
Okuqinile okuphakeme kakhulu kubangela ukushwabana okungalingani ngesikhathi somiswa |
Ukuhlakazeka |
Ayikho i-agglomeration |
Ukuhlakazeka okungekuhle kuholela kumaqoqo ezinhlayiya zendawo kanye nokukhubazeka kokunamathela |
Okuqukethwe kokugcwalisa (isb., impushana ye-ceramic) |
Kuyavumelana, kuhlakazeke kahle |
Ishintsha isimo se-microscopic surface; isigcwalisi esingaguquki sidala ukuguquguquka kokuqina |
Ithiphu elisebenzayo: Njalo hlola iqoqo ngalinye le-emulsion ye-PTFE ngokusatshalaliswa kosayizi wezinhlayiyana kanye ne-viscosity ngaphambi kokukhiqiza. Ushintsho lwe-10% ku-viscosity lungashintsha i-coating pickup ngo-5-8%.
Ubudlelwano phakathi kosayizi wezinhlayiyana ze-PTFE kanye nokufana kokunamathela kuvame ukubukelwa phansi. Ama-emulsion ane-D50 ngaphansi kuka-0.12 μm ageleza kalula, abangele ukwakheka kobuhlalu obunqenqemeni (ukujiya okujiyile emaphethelweni) ngesikhathi somiswa. Ama-emulsions ane-D50 ngaphezulu kuka-0.4 μm angena kahle i-fiberglass, okuholela ekuqineni komhlaba kanye nokufaka i-fiber encapsulation ebuthakathaka. Ibanga elifanele (0.18-0.22 μm) linikeza kokubili ukungena okuhle kanye nokwakheka kwefilimu ebushelelezi. Esinye isici esibalulekile okuqukethwe kwe-surfactant - i-surfactant eningi ibangela ukukhihliza amagwebu ngesikhathi sokumbozwa kwediphu, idale amabhamuza omoya aqhume futhi ashiye ama-craters. I-surfactant encane kakhulu iholela ekuhlanganiseni kwezinhlayiyana kanye 'namehlo ezinhlanzi' ekuhlanganisweni kokugcina. Ukuze uthole ukufana okungaguquki, sebenza nomhlinzeki oyedwa we-emulsion futhi ucele izitifiketi zeqoqo ezibonisa i-D50, i-D90, namaphesenti aphumayo.
I-Aokai PTFE isebenzisa kuphela i-emulsion ye-PTFE enokusabalalisa kosayizi wezinhlayiyana olawulwa ngokuqinile (D50 0.18-0.22 μm, D90 <0.35 μm). Lokhu kuqinisekisa ukungena okungaguquki kanye nokuqedwa kwendawo okubushelelezi kuyo yonke inqwaba yendwangu.
1. Ukuqhathanisa Indlela Yokuhlanganisa
Indlela |
Isimiso |
I-Uniformity Level |
Izinzuzo |
Ububi |
Dip enamathela |
I-substrate idlula okugeza kwe-emulsion |
Kuphakathi |
Ukumanzisa okuhle okuphelele, i-fiber encapsulation |
Ama-longitudinal streaks, imiphetho eminyene, indawo emaphakathi ezacile |
I-blade enamathela |
Precision udokotela blade amamitha enamathela |
Okuthandwayo - ukufana okuphezulu kakhulu |
I-Smooth, i-coat eminyene, ayikho imigodi / imicu |
Kuyazwela ku-substrate flatness |
Futha enamathela |
I-atomized spray application |
Impofu |
Ilungele izimo ezingajwayelekile |
I-Parameter-sensitive (ibanga, ingcindezi), ayifanele ukukhiqizwa ngobuningi |
Indlela engcono kakhulu embonini: Inqubo ehlanganisiwe - i-dip coating + blade coating - yamukelwe kabanzi. Lokhu kuhlanganisa ukumanzisa okuphakeme okukonke kwe-dip coating kanye nokugqama kwendawo eyisicaba ye-blade coating, ukulinganisa amandla e-fiber encapsulation kanye nokunemba kwendawo.
2. I-Drying & Sintering Conditions
Ipharamitha |
Umthelela ku-Uniformity |
Izinga lokumisa |
Ukomisa ngokungalingani (okushesha kakhulu noma okunensa kakhulu) kubangela ukushuba kwefilimu okungaguquki, ukuqhekeka, noma ukushwabana kwezimpawu |
Izinga lokushisa le-Sintering |
I-PTFE kufanele inyibilike ibe yifilimu eqhubekayo ku- 360-420°C . Izinga lokushisa elingalingani liholela ekuncibilikeni okungahambisani nokulinganisa |
Ubude be-sintering |
Isikhathi esinganele → ukwakheka kwefilimu okungaphelele; isikhathi esiningi → ukuphuzi noma ukuwohloka kokushisa |
Ukushisa okufanayo kuhhavini yonkana |
Izindawo ezishisayo/ezibandayo zendawo zibanga ukuchezuka kombala (isb., ukuphuzi kwezinye izindawo) |
Inqubo ehlanganisiwe ye-dip + blade iyindinganiso yemboni yezindwangu ezisezingeni eliphezulu ze-PTFE. Nasi isizathu: i-dip coating iyodwa ikhiqiza 'umthelela we-meniscus' - ukujiya kushubile emaphethelweni futhi mncane phakathi nendawo ngenxa yokushuba kobuso be-emulsion njengoba indwangu iphuma okugeza. Lokhu kuhluka okusuka emaphethelweni kuya maphakathi kungaba ngu-15-20% wogqinsi oluphelele. I-blade coating iyodwa, ngenkathi ikhiqiza indawo eyisicaba, idonsa kanzima ngokungena - i-PTFE ihlala phezulu ngaphandle kokumboza ngokugcwele imicu ye-fiberglass, okuholela ekungangeni kahle komhuzuko. Inqubo ehlanganisiwe: cwilisa ukuze ungene, bese udlula ngokushesha ngaphansi kwe-blade kadokotela ukuze ususe ngokweqile futhi ulinganise phezulu. Ukuze uthole imiphumela emihle, igebe le-blade kufanele libekwe ku-120-150% wogqinsi olufiswayo lokugcina, okubala ukushwabana ngesikhathi somiswa. Iphrofayili yezinga lokushisa kuhhavini oshisayo ibalulekile futhi - igradient engu-10°C ububanzi ingabangela ama-streaks abonakalayo.
Isici |
Umthelela ku-Coating Uniformity |
Iphethini ye-weave |
I-Plain weave: ukuthungwa okuqinile, ukuzinza okuhle kwe-dimensional, ukungakwazi ukungena kahle. I-Satin weave: isakhiwo esixekethile, ukungena okuphakeme, ukunamathela okuphezulu. I-Twill: phakathi. Umehluko we-Weave density uthinta ngqo ukungena kwe-emulsion. |
Ukungcola okungaphezulu |
Upharafini oyinsalela, okothambisa okuvela ekudwebeni/ekwalukeni kukhinyabeza kakhulu ukusabalala kwe-PTFE futhi kubangele ukonakala kokunamathela. |
Ubulukhuni bobuso |
Ukumahhadlana okungaguquki kubangela ukunqwabelana kwezimbobo ezingavamile (eziminyene ezindaweni ezimahhadlahhadla, zizacile ezindaweni ezibushelelezi) |
Okutuswayo: Kwezinhlelo zokusebenza ezihambisana kakhulu (isb, amateyipu okuvalwa kokushisa), sebenzisa indwangu ye-satin weave fiberglass enokuhlanza ukushisa ukuze ususe zonke izinsalela zemvelo ngaphambi kokumbozwa kwe-PTFE.
I-Environmental Factor |
Isimo Esilungile |
Kungani |
Izinga lokushisa |
20-25°C |
Izinga lokushisa elingafanelekile lenza buthaka ukusebenza kokulinganisa kokunamathela |
Umswakama ohlobene |
<60% (okulungile: 40-55%) |
Umswakama ophezulu udala ukufiphala kwamanzi ku-emulsion, okuholela emigodini |
Ukuhlanzeka komoya |
Okungathuli (HEPA kuyanconywa) |
Uthuli olusemoyeni lushumeka ekunameni, kwakheka amaphutha angaphezulu |
Ukungena komoya |
Kulawulwa, akukho okusalungiswa okuqondile |
Ukugeleza komoya okungalingani kubangela amazinga okomisa angajwayelekile kubo bonke ububanzi bendwangu |
Inothi eliwusizo: Phakathi nezinkathi zemvula noma izinsuku ezinomswakama ophezulu, cabanga ukusebenzisa isiqeda manzi egumbini lokumboza. Umswakamo ongaphezu kuka-70% unyusa kakhulu ukonakala kwemigodi.
Isifinyezo - Ukuhlanganisa Konke
Isici |
Iphoyinti Lokulawula Elibaluleke Kakhulu |
Inani Elikahle/Ububanzi |
Ukwakhiwa |
Ukusabalalisa usayizi we-particle |
D50 0.18-0.22 μm, D90 <0.35 μm |
Ukwakhiwa |
Okuqukethwe okuqinile |
60±2% |
Inqubo |
Indlela yokugqoka |
Dip + blade kuhlangene |
Inqubo |
Ukufana kwezinga lokushisa kwe-Sintering |
±5°C ububanzi behhavini |
I-substrate |
Iphethini ye-weave |
I-Satin weave yezinhlelo zokusebenza ezibaluleke kakhulu ezifanayo |
I-substrate |
Ukwelashwa kwangaphambili |
Kuhlanzwe ukushisa, akunazinsalela |
Imvelo |
Izinga lokushisa nomswakama |
20-25°C, RH <60% |
Kafushane , ukunamathela okufanayo kwendwangu ye-PTFE yezinga lokushisa eliphezulu kuncike ezintweni ezine ezixhumene. Ukwakhiwa kokumboza (usayizi wezinhlayiyana, i-viscosity, okuqukethwe okuqinile) kuyimbangela eyinhloko. Inqubo yokumboza kanye ne-sintering - ikakhulukazi ukusebenzisa i-dip + blade kuhlangene - yisiteji esinqumayo. Ikhwalithi ye-substrate kanye nokwelashwa kwangaphambili kunikeza isisekelo. Indawo yokukhiqiza iqinisekisa ukuvumelana.
Ngezicelo ezidinga ukufana okuphezulu (isb, amateyipu okuvalwa kokushisa, omalayini abakhululayo bemikhiqizo enamathelayo), inqubo ehlanganisiwe ye-dip + blade iyindinganiso yegolide yemboni. Gada ipharamitha ngayinye njalo, gcina izimo zemvelo zizinzile, futhi uhlole ama-emulsion angenayo ukuze uthole ukusatshalaliswa kosayizi wezinhlayiyana.
Udinga usizo lokuthola ukufana okunamathelayo okungaguquki kwendwangu yakho ye-PTFE? I-Aokai PTFE inikeza izinsiza zokumboza ngokwezifiso kanye nokubonisana kwenqubo. Xhumana nathi ngokucaciswa kwakho okuhlosiwe kanye nevolumu yokukhiqiza.
Okuqukethwe okungenhla kunikezwa ngu I-Jiangsu Aokai New Materials Technology Co., Ltd.
Uma ungathanda ukwazi okwengeziwe mayelana nokucaciswa okuningiliziwe, izimo zohlelo lokusebenza, nezixazululo ezenziwe ngokwezifiso zohlu lwethu olugcwele lwemikhiqizo, okuhlanganisa izindwangu ze-PTFE ezishisa kakhulu, amateyipu e-PTFE okushisa okuphezulu, amabhande anezikhala okushisa aphezulu e-PTFE, amabhande omshini wokuhlanganisa angenamthungo, izindwangu ze-PTFE ezinohlangothi olulodwa, i-fiberglass engamelana nokushisa okuphezulu , sicela ukhululeke ukuxhumana nathi:
Ukunamathela esimisweni sesevisi sobungcweti nobuqotho, sizinikele ekunikezeni izixazululo zokuma okukodwa kanye nezinsizakalo ezicabangelayo zawo wonke amaklayenti.
