Tef mai zafin jiki na PTFE yana aiki azaman abu mai mahimmanci a masana'antar semiconductor, ba kayan amfani na gaba ɗaya ba. Maɓallin aikace-aikacen: Kariyar matakin matakin wafer (masking plasma etching masking, CMP backside kariya, CVD/PVD masking), aiwatar da marufi (daidaitawar haɗin waya, abin rufe fuska don PCBs), da kiyaye kayan aiki (nadi-tsaye na nadi, alamar tsabtatawa). Ultra-tsabta bukatun: low halogens (hana bond kushin lalata), low siloxanes (<500 ppm, hana insulating barbashi samuwar), low karfe ions (<1 ppm kowane), ISO Class 4 cleanroom slitting / marufi, 10⁶-10⁹ Ω surface resistivity, da kuma low TVOC watsi.

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.

Babban tef ɗin PTFE mai zafin jiki na likitanci yana haɗa nau'in PTFE mai dacewa tare da mannen silicone da aka warkar da platinum. Babban fasali: TS EN ISO 10993 mai yarda (babu cytotoxicity, hankali, ko haushi), yana jure maimaita haifuwa (turi / EO / gamma), juriya na zafi 260 ° C. Mahimman taka tsantsan: kar a wuce 260°C ( hayaki mai guba sama da 300°C), iskar gamma na iya haifar da ɓarna, inganta hanyoyin haifuwa, da buƙatar cikakkun takaddun yarda (rahotanni na ISO 10993, MSDS, bayanan tsufa). Ba don amfani da jini kai tsaye ko dasawa ba sai in an inganta shi ta musamman.

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 ƙugiya mai kaifi (rufin fashe, fallasa fiberglass), babu tsaftacewa (ƙarfe ulu yana lalata ƙasa mara sanda), 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 yana da ƙididdiga na thermal fadada (CTE) na 30-60 ppm / ° C (warp / weft) - mafi girma fiye da fiberglass kadai amma nisa ƙasa da PTFE mai tsabta (100-200 ppm / ° C). PTFE yana jure wa canje-canjen girma ba zato ba tsammani (1-2%) a 19°C da 30°C canje-canjen lokaci. Don guje wa ƙullewa, tsagewa, da lalata: sharewar ƙira don faɗaɗa kyauta, guje wa tashin hankali ta yanayin yanayin canjin lokaci, yi amfani da masu tayar da hankali ta atomatik akan bel ɗin jigilar kaya, da amfani da ƙira ta zoba. Binciken akai-akai don kwararar sanyi yana da mahimmanci.

PTFE tef reusability ya dogara da dalilai hudu: m tsari (high crosslink yawa, low silicone hijirarsa, microphase tsarin for repositionable tack), substrate anchoring (surface kunnawa + firamare don hana cikakken m canja wurin), backside shafi (saki Layer don kare m a lokacin unwinding), da kuma dacewa handling (tsaftace-tsaftacewa m surface). Abubuwan adhesives da za a iya wanke ruwa na iya murmurewa> 90% tack bayan tsaftacewa.

PTFE high-zazzabi masana'anta yin burodi mats bayar da hudu key abũbuwan amfãni: ba tsaya yi (ba mai ko gari da ake bukata, m pastries saki da tsabta), fadi da zafin jiki kewayon (-70 ° C zuwa 260 ° C, lafiya ga tanda zuwa injin daskarewa), reusability (dubban hawan keke, sauki tsaftacewa), har ma da zafi conduction (hana kona, daidaita launin ruwan kasa). Abinci-sa FDA yarda, sun fi gaban takarda takarda da kuma fi na silicone tabarma tare da mafi zafi canja wurin da kuma fi kyau surface texture.

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 mai zafi mai zafi, isar da ba tare da lanƙwasa ba), murfin da ba a taɓa yin amfani da shi ba da zane mai laushi don matsewar zafi mai lebur (yana kare platens daga gurɓataccen mannewa), bel ɗin jigilar jigilar dige dige / foda layin layi (yana ci gaba da kiyaye mannewa mai mannewa mai ɗaci, isar da sabulu mara kyau) Kauri daga 0.13mm (haske padding) zuwa 0.55mm (masu nauyi mai nauyi bel).

Ƙunƙashin zafin jiki na fiberglass shine babban dalilin rashin kwanciyar hankali na tef na PTFE. A PTFE sintering yanayin zafi (360-400 ° C), saura danniya saƙa da aka saki. Idan ba a tsare ba, masana'anta suna raguwa; idan an kame, damuwa na ɓoye yana kulle a ciki, yana haifar da raguwa daga baya yayin maganin manne (150-200°C) da dumama amfani ta ƙarshe. Magani: yi amfani da fiberglass da aka saita pre-zafi tare da <0.5% raguwa a 400 ° C, kawar da ragowar damuwa kafin sutura.