bushewa mataki ne mai mahimmanci a ciki PTFE high-zazzabi masana'anta samar. Bayan fiberglass masana'anta ne impregnated da PTFE emulsion, shi wucewa ta bushewa tanda don cire ruwa da fuse da PTFE barbashi a cikin wani m shafi.
Duk da haka, tsarin bushewa zai iya gabatar da nau'i-nau'i iri-iri - daga tsattsauran ra'ayi da raƙuman ruwa zuwa delamination da warpage. Wadannan lahani sun taso daga hadaddun hulɗar tsakanin emulsion Properties, substrate tsarin, da bushewa sigogi.
Aokai PTFE ya inganta tsarin bushewa a cikin samfuran da yawa. Wannan jagorar yana bayyana lahani guda goma da aka fi sani da bushewa, tushen su, da mafita masu amfani.
Rufe Cracking da Crazing
Alamun: Kyakkyawa ko faffadan fashe sun bazu a saman masana'anta; a cikin lokuta masu tsanani, suturar ta bare a cikin flakes.
Tushen dalilai:
Gudun bushewa mai saurin gaske - saurin ƙafewar ruwa a saman yana samar da busasshiyar fata. Ruwan da aka turɓaya na ciki yana karya ta cikin fim ɗin saman ko yana haifar da matsananciyar raguwa.
Babban abun ciki mai ƙarfi na PTFE - yana haifar da raguwar ƙarar girma yayin tarin ƙwayoyin cuta.
Maɗaukakin zafin jiki mai tsananin bushewa ko iska mai ƙarfi mai ƙarfi - yana haifar da fata fata yayin da rufin ciki ya kasance ba bushewa ba, yana mai da hankali kan damuwa da haifar da fatattaka.
Magani:
Yi amfani da bayanin bushewar gradient: ƙananan zafin jiki a cikin yankin farko, a hankali yana ƙaruwa.
Rage ƙarfin bushewa na farko (zazzabi da iska).
Haɓaka abubuwan daskararrun emulsion - guje wa daskararru fiye da kima.
Rufe Hijira (Hijira na Electrophoretic)
Alamomi: Filayen masana'anta yana da wadata a cikin guduro kuma yana bayyana mai sheki, yayin da ƙarancin guduro ya cika giɓi tsakanin dam ɗin fiber na ciki. Duban sashe na giciye yana bayyana tsarin da bai dace ba tare da ɗimbin lulluɓi na waje da tarkace na ciki.
Tushen dalilai:
Kyawawan ɓangarorin PTFE suna ƙaura zuwa sama tare da kwararar ruwa yayin da danshi ke ƙafewa waje.
Sannu a hankali bushewa ko dumama gefe ɗaya yana ƙara tsananta wannan ƙaura.
Sakamakon:
Mannewa mai rauni mai rauni.
Lalacewar aikin injiniya na ƙarshe da dorewa.
Magani:
Ƙara ƙimar bushewar farko don saita barbashi da sauri kafin ƙaura ya faru.
Yi amfani da dumama mai gefe biyu ko mafi kyawun rarraba iska.
Yi la'akari da mafi girma-danko emulsions don rage barbashi motsi.
Pinholes da Blisters
Alamomi: Ƙananan ramukan madauwari ko alamun kumfa masu tasowa a saman rufin.
Tushen dalilai:
Ragowar microbubbles a cikin emulsion da ba a kula da su ba.
Iskar da ke makale a cikin filayen masana'anta na fiberglass yana faɗaɗa kuma yana gudu akan dumama.
Sharp tafasa da vaporization na ruwa karya ta cikin shafi fim.
Karancin danko emulsion, matalauta jika jika, ko saurin zafi tashin lokacin bushewa duk exacerbate filhole lahani.
Magani:
Degas da emulsion kafin impregnation.
Yi amfani da defoamer kuma tabbatar da jikewar fiberglass sosai.
Sarrafa zafin bushewa na farko don guje wa tafasawar tashin hankali.
Ƙara emulsion danko don tsayayya da fashewar kumfa.
Farin Tabo, Hazing, da Chalking
Alamomi: Na gida ko gabaɗaya fararen faci masu hazo akan rufin; ragowar foda suna fashe daga saman a lokuta masu tsanani.
Hanyoyi guda biyu daban-daban:
Farin spots / hazing:
bushewa mai saurin gaske yana haifar da microcracks waɗanda ke watsa haske.
Surfactants suna yin ƙaura suna taruwa a saman ƙasa, suna haifar da farin ruwa mai haifar da danshi.
Rashin cika bushewa ya bar ragowar ruwa kuma yana haifar da lahani mai kama da alamar ruwa.
Chalking:
Matsanancin zafin jiki mai yawa ko tasirin iska mai zafi kai tsaye yana hana ɓangarorin PTFE na sama daga fusing a cikin fim ɗin da aka haɗa, barin sako-sako da foda.
M emulsion iya karya da agglomerate cikin foda clumps a lokacin bushewa.
Magani:
Kauce wa matsanancin bushewa yanayin zafi.
Tabbatar da cikakken sintering - ba kawai bushewa ba.
Sarrafa abun ciki na surfactant a cikin tsarin emulsion.
Yellowing da Coking
Alamun: Rufin yana juya rawaya, har ma da alamar ƙona launin ruwan kasa.
Tushen dalilai:
Matsakaicin zafin jiki na bushewa ko tsawan lokacin zama yana haifar da bazuwar ƙoshin oxidative na surfactants, masu kauri a cikin emulsion, da sauran abubuwan sikelin fiberglass.
PTFE kanta tana da kyakkyawan juriya na zafi, amma ƙarin ƙari ba zai iya jure matsanancin zafi ba.
Dumamar infrared mara daidaituwa yana haifar da yankuna masu zafi na gida.
Magani:
Saita zafin jiki na bushewa ƙasa da bakin kofa na duk abubuwan da ake ƙarawa (yawanci <380°C don PTFE sintering, amma kauce wa ci gaba>350°C).
Tabbatar da dumama iri ɗaya a fadin tanda.
Yi amfani da tsafta mai tsayi, abubuwan daɗaɗɗen zafin jiki.
H2: 6. Rufaffen Dagawa da Delamination
Alamomi: Rufin ya rabu da keɓancewar fiberglass substrate interface, peelable a cikin manyan zanen gado ko cirewa ta hanyar shafa.
Tushen dalilai:
Bushewar damuwa ya wuce ƙarfin haɗin fuska.
Gilashin fiberglass mara tsabta ko mara magani yana haifar da rashin lafiyar emulsion.
Rashin daidaituwa daga bushewa mai gefe guda.
Ragewar guduro a mahaɗin da ke haifar da ƙaura ta shafi ƙaura yana haifar da ƙarancin iyaka.
Magani:
Tabbatar da tsaftataccen tsaftar saman ƙasa da pretreatment na fiberglass (misali, tsaftacewar zafi don cire ƙima).
Yi amfani da silane coupling agents ko masu tallata mannewa.
Inganta bayanan bushewa don rage damuwa.
Hana ƙaura da yawa.
Bawon lemu, Matakai mara kyau, da Faɗakarwa
Alamomi: Orange-bawo-kamar m laushi mai laushi ko gaba ɗaya matte m surface ba tare da sheki.
Tushen dalilai:
Rashin ƙarancin aikin emulsion na PTFE.
Maɗaukakin zafin jiki na farko na bushewa da yawa yana ɗaukan fim ɗin da sauri kuma yana kawar da ƙarfin daidaitawa.
Gudun iska mai zafi kai tsaye yana damun rigar shafi.
Fitattun fitattun masana'anta na saƙa ba za a iya rufe shi da yadudduka na bakin ciki ba.
Magani:
Yi amfani da ƙananan zafin jiki na bushewa - ba da damar lokaci don daidaitawa.
Rage saurin iska mai zafi a yankin bushewa na farko.
Aiwatar da riguna masu bakin ciki da yawa maimakon riga ɗaya mai kauri.
Yi amfani da wakilai masu daidaitawa idan ya cancanta.
Shafin Yaki da Nakasawa
Alamomi: saman masana'anta mara daidaituwa, murɗaɗɗen kai, da raguwar faɗin bayyane.
Tushen dalilai:
Thermal shrinkage na fiberglass masana'anta a ƙarƙashin yanayin zafi mai sanyi da bushewa, musamman tare da tashin hankali mara kyau / warp.
Matsakaicin ƙimar raguwar thermal tsakanin sutura da ƙasa.
Bushewa mai gefe ɗaya ko manyan gradients na zafin jiki suna haifar da raguwa daban-daban a bangarorin biyu na masana'anta.
Magani:
Kula da daidaitaccen tashin hankali na warp/weft yayin bushewa.
Yi amfani da dumama mai gefe biyu don daidaita raguwa.
Pre-rushe masana'anta fiberglass kafin rufewa.
Busasshen Sama Amma Jika na Cikin Gida - Katange Roll
Alamun: Rufin yana jin bushewa don taɓawa duk da haka yana riƙe danshi na ciki. Rufaffen yadudduka suna manne da juna bayan sun yi juyi, tare da ƙarar bawon amo ko lalacewa yayin kwancewa.
Tushen dalilai:
Maɗaukakin zafin jiki mai bushewa tare da ɗan gajeren lokacin zama yana haifar da fatar saman da ke toshe fitar da tururin ruwa na ciki.
Rashin isasshen sanyaya bayan fita daga tanda mai bushewa yana barin sauran zafi kuma yana sanya surfactants tacky.
Rashin cika bushewa ya bar ragowar ruwa da ƙari don samar da fina-finai masu ɗanɗano.
Magani:
Yi amfani da ƙananan zafin jiki na bushewa tare da tsawon lokacin zama - ba da damar danshi ya tsere a hankali.
Tabbatar da isassun iska da dehumidification a cikin tanda.
Samar da isasshen sanyaya kafin iska (manufa <40°C).
Kauri Mai Kauri Da Kaurin Rufe Mara Daidai
Alamomi: Rubutun a gefuna masana'anta ya fi kauri fiye da yankin tsakiya, ko bambance-bambancen kauri ya bayyana a cikin gidan yanar gizo.
Tushen dalilai:
Wurin damshi mai sauri a selvedges yana haifar da tarin emulsion da ƙaura zuwa gefuna yayin bushewa - tasirin zoben kofi.
Rashin daidaituwar iska mai zafi yana haifar da ƙimar bushewa iri-iri.
Magani:
Haɓaka daidaituwar kwararar iska a cikin cikakken faɗin masana'anta.
Yi amfani da kula da yanayin zafi na yanki-gefen ko baffles don rage ƙimar bushewar gefen.
Daidaita dabarar shafi don amfani da kaurin fim ɗin rigar iri ɗaya.
Aokai PTFE a hankali yana sarrafa sigogin bushewa - bayanin yanayin zafin jiki, kwararar iska, lokacin zama, da tashin hankali - don samar da masana'anta na PTFE kyauta daga waɗannan lahani. Don aikace-aikacen shafa na al'ada, za mu iya inganta yanayin bushewa don takamaiman buƙatun samfurin ku.
Idan kuna son ƙarin koyo game da cikakkun bayanai dalla-dalla, yanayin aikace-aikacen da keɓaɓɓen mafita don kewayon samfuranmu, gami da masana'anta masu zafin jiki na PTFE, kaset ɗin zafin jiki na PTFE, PTFE raga conveyor bel, m bonding inji bel, guda-gefe PTFE tufafi, high-zazzabi resistant conveyor bel da high-gilashi resistant masana'anta bel da fiber-gilashi lamba mu fiber.
