PTFE high-zazzabi zane insulating gaskets hada high dielectric ƙarfi (barga a karkashin zafi), -70 ° C zuwa 260 ° C zafin jiki kewayon, duniya sinadaran juriya (sai narkakkar alkali karafa), wadanda ba sanda surface (hana creepage), anti-creep (fiberglass ƙarfafa vs. tsarki PTFE), high tensile ƙarfi = 0 -0 flaction, low fla. rating. Idan aka kwatanta da mica, roba, da gaskets PTFE mai tsabta, zane na PTFE yana ba da sassauci mafi girma, iya aiki, da kwanciyar hankali na tsawon lokaci. Mafi dacewa don masu canzawa, rufin mota, sinadari flange sealing, da semiconductor kayan aiki.

PTFE shimfidar tufa a lokacin sintering yana buƙatar madaidaicin tashin hankali, zafin jiki, da kulawar kamewa. Hanyoyi masu mahimmanci: na'ura mai mahimmanci (faranti fil suna kula da nisa, hana raguwar weft), bayanin martabar zafin jiki (jinkirin zafi → 380-400 ° C riƙe → jinkirin sanyaya ƙasa 310 ° C kafin sakin tashin hankali), pre-shrunk substrate (yana kawar da damuwa na saƙa kafin sutura), da kauri mai launi (hana narke bambanci). Dole ne a kiyaye kamewar senter har sai an sanyaya ƙasa da ma'aunin crystallization na PTFE (kimanin 310°C) don hana wargin.

PTFE high-zazzabi zane da aka samar via ko dai guda-tsoma impregnation (daya pass: azumi, low-cost, bakin ciki shafi, m surface da pinholes) ko Multi-tsoma impregnation (2-3+ wuce: santsi, m, filhole-free shafi, PTFE abun ciki 50-70%, Premium yi, mafi girma kudin). Tsoma guda ɗaya ya dace da ƙananan gaskets, tabarma na wucin gadi, da kayan numfashi. Ana buƙatar tsomawa da yawa don zanen burodin abinci, bel ɗin jigilar da ba na sanda ba, manyan abubuwan da'irar da'ira, masu layin sinadarai, da membranes na gine-gine.

PTFE high-zazzabi zane surface jiyya karya sinadaran inertness ga bonding / bugu. Hanyoyi hudu: sinadaran etching (sodium-naphthalene, surface makamashi 20→40-50 dyn / cm, m duhu Layer, micro-porous tsarin), plasma jiyya (nano-roughening, aikin kungiyar grafting, short aiki taga), corona jiyya (na bakin ciki-fim, azumi lalata, iyaka zurfin), da kuma Laser jiyya (daidai micro-patterning, sarrafa carbonization). Duk hanyoyin da za a yi su ta jiki da kuma suna gabatar da ƙungiyoyin polar (C=O, -OH, -COOH) don ba da damar haɗin kai.

Raw kayan tsarki ne tushen tushe na PTFE high-zazzabi zane ingancin. Najasa (sauran initiators, surfactants, karfe ions, gurɓataccen sizing jamiái) haifar da wanda bai kai ba thermal lalacewa (kumfa, blistering sama da 260 ° C), m maras sanda saman (adhesion anga maki), rage wutar lantarki rufi (dielectric hasãra, ƙananan rushewar ƙarfin lantarki), raunana inji ƙarfi / damuwa. Babban-tsarki albarkatun ƙasa suna tabbatar da yarda da FDA, tsawon rai, babban zane na PTFE.

PTFE mai rufin fiberglass sintering masana'anta yana buƙatar daidaitaccen lokacin riƙewa a 370-400 ° C. Murna mai ci gaba: 30-90s (bakin ciki) zuwa 3-5+ min (kauri). Tushen wuta: 5-15 min. Ƙarƙashin-sintering yana haifar da bazuwar, m kayan shafa wanda bawo; over-sintering yana haifar da rawaya, gatsewa, da sakin iskar fluoride mai guba. Haɓaka tsari: yi amfani da masu sa ido kan zafin jiki na tanderu, gudanar da duban gani (tsarin bayyana, sassauƙa), da yin gwaje-gwajen jan tef. Koyaushe tabbatar da daidaiton yanayin zafi mai cikakken kauri.

PTFE masana'anta mai zafin jiki na buƙatar kulawa da hankali don tabbatar da aminci da tsawon rai. Maɓalli mai mahimmanci: Kada ku wuce 260 ° C (sama da 320 ° C yana fitar da hayaki mai guba), guje wa ɓarke ​​​​mai kaifi (rufin fashe, fallasa fiberglass), babu tsaftacewa (ƙarfe ulu yana lalata farfajiyar da ba ta tsaya ba), ajiye izinin haɓakar thermal (yana hana tsagewa), da maye gurbin lokacin blistered ko peeled. An yi birgima, nesa da UV. Saka safofin hannu masu hana zafi yayin sarrafawa.

PTFE high-zazzabi masana'anta da muhimmanci a cikin tufafi interlining masana'antu. Maɓallin aikace-aikace: bel mara iyaka mara iyaka don injunan fusing mai ci gaba (hana manne zafi mai narkewa, isarwa mara kyau), murfin mara amfani da zane don matsewar zafi mai lebur (yana kare platens daga gurɓataccen gurɓataccen abu), bel ɗin jigilar jigilar dige dige / foda layin layi (yana kiyaye daidaitaccen mannewa / ɗigon suturar ƙarfe). Kauri daga 0.13mm (haske padding) zuwa 0.55mm (masu nauyi mai nauyi bel).

Anti-a tsaye PTFE masana'anta da aka samu ta hanyar manyan hanyoyi guda biyu: shafi doping (haɗuwa da masu maye kamar baƙar fata carbon cikin emulsion PTFE, ƙirƙirar cibiyar sadarwar percolation a mahimmancin maida hankali) da saƙa mai ƙima (ƙwaƙwalwar zaruruwa a cikin zanen fiberlass). Ana sarrafa juriya na saman a 10⁵-10⁹ Ω. Ka'ida: ƙirƙirar hanyar gudanarwa wanda ke zubar da cajin da ba daidai ba nan take, yana hana tarawa mai haɗari. Yin ƙasa wajibi ne don ingantaccen aiki.

Bushewa mataki ne mai mahimmanci a cikin samar da masana'anta mai zafin jiki na PTFE. Lalacewar yau da kullun sun haɗa da: fatattaka ( bushewa da sauri, fatar jiki), ƙaura mai shafa (barbashi suna motsawa zuwa saman, raunin ciki mai rauni), ɗigon ruwa / blisters (iska mai kama da iska ko tururi), ɗigon fari da chalking ( ƙaurawar surfactant ko haɗuwa da bai cika ba), yellowing/coking (zazzaɓi na abubuwan ƙari), delamination (ƙancewar damuwa ya wuce mannewa), matakin bushewar ruwan lemu, peelkageven peeling, lemu mai bushewa. rigar ciki (fatar tarkon danshi), da kauri gefuna (sakamakon zoben kofi). Magani sun haɗa da bayanan bayanan bushewa mai sarrafawa, samun iska mai kyau, da pretreatment na ƙasa.