Sintering nye afɔɖeɖe vevi si me PTFE ƒe akpa suesuesuewo ƒuna, sina, eye woƒoa ƒu zua film si me mekɔ o si mebɔ o si blana ɖe fiberglass substrate la ŋu. Ne ɣeyiɣi si woatsɔ alée la le kpuie akpa la, nusi wotsɔ blae la gakpɔtɔ nyea ʋuʋudedi eye wògbɔdzɔna. Ne edidi akpa la, PTFE la gblẽna, si wɔnɛ be ya siwo me aɖi le dona eye wòtrɔna zua gbagbã.
Nu vevitɔ si wotsɔ léa nu ɖe te enye ɣeyiɣi si woatsɔ alé nu ɖe te – ɣeyiɣi si wòxɔna le nutsyɔnu ƒe akpa gãtɔ ƒe dzoxɔxɔ si le sintering me (zi geɖe la, 370-400°C) gbɔ megbe. Menye ɣeyiɣi si me dzodoƒea le dzoxɔxɔ me koe nye esia o; enye ɣeyiɣi si me avɔa ŋutɔ le afisi wòfa wu.
Aokai PTFE na sintering parameters nyo wu le adzɔnuwo ƒe hatsotso geɖewo me. Mɔfiame sia ƒo nu tso ɣeyiɣi si woatsɔ alé dzodoƒe ƒomevi vovovowo, nu vevi siwo kpɔa ŋusẽ ɖe wo dzi, kple nusiwo gblẽ le ɣeyiɣi si mesɔ o me ŋu.
Gɔmeɖose Veviwo – Nusi 'Ɣeyiɣi Léle Ðe Asi' Fia Nyateƒe
1. Taɖodzinu vevitɔ
Be woaɖe mɔ na PTFE ƒe akpa suewo be woalɔ̃ bliboe, woasi, eye woaƒo ƒu wu woƒe dzoxɔxɔ ƒe teƒe (anɔ abe 327°C ), si awɔ film si yia edzi eye wòle ʋeʋẽm si naa mɔ̃ɖaŋununya ƒe kadodo kplikplikpli kple fiberglass-nutunua.
2. Vovototodedeameme vevie
Ɣeyiɣi si wotsɔ léa nu ɖe te fia ɣeyiɣi didi si nɔa anyi ɖaa le esime nusi wotsɔ blae ƒe akpa gãtɔ ɖo dzoxɔxɔ si wotsɔna ƒoa dzoe (zi geɖe la, 370-400°C) megbe, ke menye ɣeyiɣi didi si dzodoƒea ƒe dzoxɔxɔ nɔa anyi ɖaa ko o.
Ele vevie ŋutɔ be woakpɔ egbɔ be fiberglass avɔa ƒe titrime bliboa (si me aŋɔ si xaxa ɖe ka siwo le eme dome hã le) ɖo dzoxɔxɔ si me wòƒoa nu le eye wòalé ɖe te ɣeyiɣi si sɔ. Yame ƒe dzoxɔxɔ ɖeɖe mesɔ gbɔ o – ele be ememe ƒuƒoƒoawo hã nalɔ̃.
Aɖabaƒoƒo 15 – 30 (be woaka ɖe edzi be dzoxɔxɔ si sɔ le ememe kple esi le anyigba dzi)
Ŋkuɖodzinya: Aɖaka me dzodoƒewo kpea fu le dzoxɔxɔ ƒe mama si mesɔ o me. Ya si le tsatsam si ƒe duƒuƒu sesẽ hiã, eye ele be woadidi ɣeyiɣi si woatsɔ alée ɖe enu wòasɔ be woaƒo asa na ememe ƒuƒoƒowo ƒe ʋuʋu nyuie o.
Nu Vevi Siwo Dea dzesi Ɣeyiɣi si Woalée
Nu vevi atɔ̃ wɔa dɔ ɖekae tsɔ nyaa ɣeyiɣi nyuitɔ si woatsɔ alé adzɔnu aɖe koŋ ɖe asi.
1. Fiberglass avɔ ƒe titrime kple kpekpeme
Avɔ siwo le kpekpem wu la ƒe dzoxɔxɔ ƒe tsɔtsɔme medea ame dzi o eye wobia be woalé wo ɖe te ɣeyiɣi didi hafi dzoxɔxɔ nate ŋu age ɖe titina.
2. Coating to kple PTFE agba
Nu geɖe siwo wotsɔ blaa nu la wɔa aŋɔ ƒe film siwo le ɣie siwo hiã dzoxɔxɔ didi hafi woate ŋu afa nusi le ete la keŋkeŋ. Nusiwo wotsɔ blaa nu tsɛ ɖekaɖekawo ɖea mɔ be woalée ɖe asi kpuie wu.
3. PTFE emulsion ƒe dzeside
Pure PTFE emulsions – hiã na sintering dzoxɔxɔ si kɔkɔ wu kple ɣeyiɣi si sɔ
Tsakatsaka siwo ŋu wotrɔ asi le (siwo wotsaka kple PFA alo FEP) – ɖea ʋeʋẽ ƒe sisi si nyo wu fiana eye woɖea mɔ ɖe ɣeyiɣi didi si wotsɔ léa wo ŋu dzi kpɔtɔna
4. Sintering ƒe dzoxɔxɔ
Dzoxɔxɔ si woɖo ɖi si kɔ wu (le kpɔɖeŋu me, 400°C) – na ɣeyiɣi si wobia be woatsɔ alée la nanɔ kpuie
Dzoxɔxɔ si gogo seɖoƒe si bɔbɔ wu (370°C) – hiã dzoxɔxɔ didi
Fesre si ƒe dzoxɔxɔ nye 380-390°C da sɔ le nuwɔwɔ nyuie kple PTFE ƒe gbegblẽ ƒe afɔku me
5. Dzodoƒe ƒe nɔnɔme kple ya dzodzoe ƒe duƒuƒu
Dzodoƒe siwo me ya dzodzoe si le tsatsam kabakaba alo infrared gena ɖe eme – dzoxɔxɔ ƒe tsɔtsɔ yi teƒe bubu nyuie, ɣeyiɣi kpui si woatsɔ alée
Dzodoƒe siwo ɖoa ŋu ɖe dzoxɔxɔ si klẽna ɖeɖeko ŋu – ehiã be woanɔ anyi didi
Gblẽƒe Siwo Wòtso Ɣeyiɣi Si Me Woléa Nu Si Mesɔ O Gbɔ
1. Ɣeyiɣi si mesɔ gbɔ be woatsɔ alée o (under-sintering) .
Dzesi si dzena
Nusi Gbɔ Wòtso
Nusi wotsɔ blae la trɔna zua ɣie si me mekɔ o, nukuwo, kple anyigba si le gbadzaa
Nusuekpɔmɔ̃ siwo mefa keŋkeŋ o eye wometsɔ wo ƒo ƒui o
Adhesion nyuie o – lãɖeɖe le etutu alo eƒoƒo vɔ megbe
Kadodo si gbɔdzɔ kple fiberglass
Dielectric ŋusẽ dzi ɖe kpɔtɔ, ya ƒe gege ɖe eme si lolo
Film ƒe wɔwɔme si me ʋuʋudedi le, si mede blibo o
Tsi/ami ƒe atike si gblẽ
Anyigba si dzi mekɔ bliboe o
Mɔ̃ɖaŋununya ƒe ŋusẽ si mede ŋgɔ o
Nusuewo dome kadodo si gbɔdzɔ
Deteksi: Nukpɔkpɔ ƒe ŋkuléle ɖe nu ŋu (ɣi si me mekɔ o, nukuwo), tape hehe dodokpɔ (peeling), cross-section inspection (fu ɣi siwo mefa o le eme).
2. Ɣeyiɣi didi akpa si woatsɔ alée (over-sintering) .
Dzesi si dzena
Nusi Gbɔ Wòtso
PTFE dzea dzoxɔxɔ ƒe gbegblẽ gɔme
Ne wotsɔe ɣeyiɣi didi le dzoxɔxɔ 380-400°C (esẽ wu 415°C) .
Zã dzodoƒe ƒe dzoxɔxɔdzidzenu nàtsɔ aŋlɔ avɔa ƒe yame ƒe dzoxɔxɔ le ɣeyiɣi ŋutɔŋutɔ me eye nàɖo kpe ɣeyiɣi didi si wòxɔna nyuie wu 370°C dzi. Esiae nye mɔ si ŋu kakaɖedzi le wu si dzi woato aɖo kpe ɣeyiɣi ŋutɔŋutɔ si woatsɔ alée dzi.
2. Nukpɔkpɔ ƒe tsitsi me dzodzro
PTFE ƒe nutsyɔnu siwo wotsɔ sintered bliboe le afima:
Dzedzeme ɖeka si me kɔ afã kple afã va ɖo esi me kɔ bliboe (etoa vovo le eƒe titrime nu)
Nusuekpɔmɔ̃ siwo me mekɔ o siwo le abe chalky ene aɖeke meli o
Ete ŋu trɔna ɖe nɔnɔmewo ŋu ne woka asi eŋu (menye esi sesẽ alo gbãna o) .
3. Adhesion dodokpɔ
Womeɖea lãgbalẽ alo aŋɔ si susɔ le tape hehe dodokpɔ alo wo bɔbɔ enuenu (klo/ʋu zi 5-10) megbe o.
4. Cross-section tsɔtsrɔ̃ ƒe ŋkuléle ɖe nu ŋu
Avɔ si wotso ƒe akpa siwo wotso la ɖee fia be:
Nu ɣi siwo womefa o mele eme o
Fiberglass ka siwo tsii bliboe wotsɔ PTFE aŋɔ si wotsɔ ƒo
5. Dedienɔnɔ ƒe ɖoɖowo kple fafa dzizizitɔe
Lé ya sesẽ si dona le yame me ɖe asi be nàxe mɔ na aɖinuwo (perfluoroisobutylene, HF) ƒe ƒoƒo ƒu tso PTFE ƒe gbegblẽ me
Kpe dzoxɔxɔ si sɔ gbɔ wu kple ɣeyiɣi si woatsɔ alée ɖe te sesĩe
Enumake na avɔa yi fafaƒe si wozi ɖe edzi le dzoxɔxɔ gã ƒe akpaa megbe be wòafa le 300°C te kabakaba – fafa kabakaba kpena ɖe eŋu be wòaxe nu suesuesue siwo wotsɔ fu wɔe la
Kpuie ko la – Nufiame Kabakaba Léle Ɣeyiɣi Mɔfiame
Dzodoƒe Ƒomevi
Avɔ ƒe Titrime
Ɣeyiɣi si Wokafu be Woalée
Nusi yia edzi (nuto geɖe me) .
Le tsɛ (milimeta 0.08-0.15) .
30 – 90 sɛkɛnd
Nusi yia edzi (nuto geɖe me) .
Teƒe si le titina (0.15-0.30 mm) .
90 – 180 sɛkɛnd
Nusi yia edzi (nuto geɖe me) .
Kpekpeme (>0.30 mm) .
3 – 5+ minitiwo
Batch (aɖaka-ƒomevi) .
Awudziwui ɖeka
5 – Aɖabaƒoƒo 15
Batch (aɖaka-ƒomevi) .
Multi-coat / si wotsɔ lãgbalẽ wɔe
15 – 30 miniti
Se gbadzaa: Xɔ ɣeyiɣi suetɔ kekeake si dzi woda asi ɖo si dzi woda asi ɖo si kpɔa egbɔ be nusi wotsɔ blae la ƒe ʋeʋẽ blibo, eƒe sɔsɔme, kple zero unmelted inner cores – be woaɖe dzoxɔxɔ ƒe gbegblẽ ƒe afɔkua dzi akpɔtɔ.
Aokai PTFE naa sintering dɔwɔwɔ ƒe kpekpeɖeŋu si me dzoxɔxɔ yometiti, cross-section inspection, kple parameter optimization hã le. Te ɖe mía ŋu hena mɔ̃ɖaŋununya ƒe kpekpeɖeŋu.
