Faɗaɗɗen masana'anta na fiberglass (ƙarancin yarn yarn) ya bambanta da gaske daga masana'anta fiberglass na al'ada a cikin tsarin yarn. Ta hanyar maganin jet mai matsananciyar iska, ana raba filayen gilashin ci gaba, an gurɓace, kuma a juye su cikin ƙaranci, yarn mai kama da auduga. Wannan yana haifar da kauri, masana'anta mai laushi tare da mafi girman rufin thermal (sarkin iska mai kama da tarko), ingantacciyar daidaituwa, ingantaccen tacewa, da ingantaccen juriya / juriya - a farashin ɗan ƙaramin ƙarfi mai ƙarfi. Ana amfani da shi don gaskets masu zafin jiki, bututun bututu, jakunkuna masu tacewa, da hatimin tanda.

Raw kayan tsabta shine tushen PTFE high-zazzabi masana'anta yi. High-tsarki PTFE emulsion (babu ions karfe, babu ragowar ƙananan nauyin kwayoyin halitta) yana tabbatar da juriya na zafi (babu rawaya har zuwa 260 ° C), barga maras sanda, da ƙarfin ƙarfin lantarki. Don gilashin fiberglass, gilashin E-glass maras alkali (Na₂O <0.8%) yana kula da ƙarfi da rufi a yanayin zafi; gilashin matsakaici / high-alkali yana haifar da lalacewa. Cikakkiyar kawar da ma'aunin girman sakar yana hana carbonization da delamination. Tsafta kai tsaye yana shafar rayuwar sabis, bin matakin abinci, da amincin lantarki.

Daidaitaccen bushewar masana'anta na fiberglass yana da mahimmanci ga shafi na PTFE na gaba, resin impregnation, ko lamination. Babban jiyya guda uku: cire danshi a 105-120 ° C (10-30 min dangane da nauyin nauyi), tsaftacewa / tsaftacewa na thermal a 300-450 ° C (LOI <0.1%, kaucewa> 500 ° C), da preheating a 60-100 ° C kafin rufewa. Sarrafa daidaituwar zafin jiki na tanda (± 5°C), tilastawa dehumidification, da kare yadudduka da aka yi wa silane ƙasa 110°C. Ajiye busassun masana'anta a cikin jakunkuna da aka rufe ko busassun dakuna (<30°C, <40% RH).

PTFE high-zazzabi tef yana da kyau kwarai gishiri fesa juriya, amma rauni maki ne m Layer da fiberglass substrate gefuna. Hanyoyin kimantawa: Gwajin gishiri mai tsaka-tsaki na 1000h (NSS), ma'aunin ƙarfin ƙarfin kwasfa (≥80% da ake buƙata), lahani na gani (ɗagawa, blistering), da lalata substrate na ƙarfe. Don mahalli na ruwa da gishiri-gishiri mai tsayi: yi amfani da PSA silicone (ba acrylic) ba, PTFE mai cike da ciki, gefuna tare da mai jure yanayin yanayi, sannan shafa firam a saman saman ƙarfe.

PTFE high-zazzabi masana'anta (Fiberglass mai rufi PTFE) kusan ba shi da sinadarai, amma wasu abubuwa suna haifar da lalata a ƙarƙashin takamaiman yanayi. Harin PTFE kai tsaye yana faruwa tare da narkakken alkali karafa (sodium, potassium), magunguna masu ƙarfi masu ƙarfi (F₂, ClF₃) a yanayin zafi mai zafi, da narkakken alkalis mai ƙarfi sama da 300°C. Lalata kaikaice yana faruwa lokacin da hydrofluoric acid (HF), alkalis mai zafi mai zafi, ko phosphoric acid mai zafi ya shiga cikin lahani kuma ya kai hari ga ma'aunin fiberglass. Don matsanancin sabis na sinadarai, yi amfani da fim ɗin PTFE mai tsabta ba tare da fiberglass ba.

Tef mai zafin jiki na PTFE yana asarar mannewa bayan amfani da shi akai-akai saboda gurɓatar ƙasa (ƙura, man silicone), gazawar haɗin gwiwa (raguwa), ko haɗin haɗin ƙasa mai rauni. Magani: high-crosslink silicone PSA (ƙananan ƙaura, daidaitaccen matsewa / ikon riƙewa), jiyya na farko a kan madaidaicin PTFE, goyan bayan fiberglass mai yawa, da kulawa mai kyau (tsaftace saman, kwasfa mai sanyi, kusurwar 180°). Gwajin ƙididdiga yana tabbatar da haɓakawa.

PTFE high-zazzabi masana'anta (PTFE-rufi fiberglass) yana da kyau kwarai thermal girgiza juriya a cikin al'ada aiki kewayon -70 ° C zuwa 260 ° C. Yana iya jure wa hawan keke cikin sauri, misali, motsi daga injin daskarewa -50°C zuwa matsananciyar zafi 260°C. Darajojin ƙima har ma suna tsira da sanyi kwatsam daga 260°C zuwa ruwa 10°C. Koyaya, girgiza kayan daga yanayin zafi sama da 300°C (kusa da ma'aunin narkewar PTFE 327°C) zai haifar da fashewa nan take. Ƙarƙashin fiberglass yana ba da kwanciyar hankali mai girma; da PTFE shafi ne iyakance factor.

PTFE high-zazzabi masana'anta da aka yadu amfani a cikin sinadaran masana'antu for bakwai key aikace-aikace: flange gaskets da bututu rufi (juriya da karfi acid / alkalis), reactor da tanki linings (hana karfe lalata, sauki tsaftacewa), tace bags for lalata flue gas (har zuwa 260 ° C), anti-lalacewa fadada gidajen abinci ga ducts, anti-padssion m, walƙiya tufafi ga ducts, anti-adhesion m, lantarki da kuma m. rufi wraps. FDA da UL maki akwai.

Tef mai zafin jiki na PTFE da aka adana a ƙarƙashin ƙayyadaddun yanayi (10-25 ° C, 40-70% RH, nesa da UV/matsi mai nauyi) yana da daidaitaccen rayuwar rayuwar watanni 3-6 (makin ƙima har zuwa watanni 12). Maɓallin lalatawar maɓalli: ƙarfin kwasfa ba dole ba ne ya faɗi ƙasa da 70% na ƙimar farko; babu ragowar mannewa bayan cirewar zafi mai zafi; babu carbonization ko fatattaka a rated zafin jiki. Dubawa mai sauri: jin kwancewar hannu, gwajin ragowar 260°C, da gwajin rage lamination.

PTFE high-zazzabi masana'anta (PTFE-rufi fiberglass) yayi hudu key abũbuwan amfãni a matsayin anti-lalata rufi: sinadaran inertness (juriya aqua regia, karfi alkalis, kaushi), fadi da zafin jiki kewayon (-70 ° C zuwa 260 ° C ci gaba, 350 ° C ganiya), girma girma (<0.5% ginawa surface), da kuma hana girma da kwanciyar hankali. Ana amfani da shi a cikin bututun sinadarai, hasumiya mai lalata sulfur, tankunan girki, da kayan abinci/pharma. Ana samun maki FDA.