A cikin recentan shekarun nan, polytetrafluoroethylene (Teflon) wani nau'i ne na gurɓata abubuwa masu ƙyama da lalata abubuwa don ƙarfin lantarki da masana'antar man petrochemical. Koyaya, yakamata a biya manyan matsaloli masu zuwa ga lokacin da PTFE layi tiyo Layin yana walda, in ba haka ba rayuwa da aminci na bututun PTFE mai layi zai shafa. 1. Lokacin tsaftace kayan haɗin taro, an hana shi da gaske lalata ƙarfe na tushe. An haramta buga bakan a kan ƙarfe lokacin walda. 2. A cikin fillet din fillet weld, tsayin fillet weld zai zama mafi girma fiye da 5mm, kusurwar tsinkaye zai zama mafi girma ko daidai da 3mm, kuma kusurwar ciki ta fi girma ko daidai da 10mm. 3. A lokacin waldi da kwasfa na PTFE sahu bututu, yana da kyau a yi amfani da hanyar waldi na waldi mai gefe biyu. Wannan yana buƙatar matakin fasaha na ma'aikatanmu, walda yakamata ya zama madaidaiciya (mai santsi ko miƙaƙƙiyar miƙa mulki), babu rami, kofofin walda da sabon abin haɗawa, kuma tsayin walda bai kamata ya fi 2mm girma ba. Bayan waldi, za a cire spatter din da waldi ya haifar gaba daya. 4. Dole ne a sami ci gaba da walda a cikin walda na bututun PTFE, kuma kifin walda ba zai sami fasa ko ci gaba da yankewa ba.

Polytetrafluoroethylene (PTFE) yana daya daga cikin sunayen da ake amfani dasu na polytetrafluoroethylene. Ana amfani da tiyo na PTFE a cikin bakin karfe, saboda haka rayuwar sabis na tiyo ta fi ta roba ko ta roba tsaka-tsayi a cikin bakin karfe. Yana da fa'idodi da yawa akan samfuran roba.

Class I: PTFE mai layi madaidaiciya bututu da kayan aikin bututu

Akafi sani da sako-sako da layi bututu. A wannan tsari, ana amfani da PTFE don juya sandar. Ya dace da matsin lamba na yau da kullun da bututun jigilar ruwa mai ƙarfi (kamar bututun magani uku, da sauransu), kuma bai kamata a yi amfani da shi ba don ɗaukar bututu tare da kaya (kamar mashigar ruwa da mafitar famfo da bututun da ke iya haifar da matsi mara kyau ta digowa ko sanyaya kwatsam).

Bayanin diamita: dn25-500mm

Zafin jiki na sabis: - 40-180oc

Matsalar sabis: 1.6Mpa

Class II: Ptfe m sahu madaidaiciya bututu da kuma bututu kayan aiki

An san shi da yawa azaman bututu mai rufi mai rufi wanda aka nannade shi da waya ta ƙarfe

Tsarin masana'antu: Da fari dai, an lalata layuka da yawa na fim ɗin PTFE akan sifar, sannan wayar ƙarfe (Ø 0.5-1mm) tana da rauni sosai a kan fim ɗin PTFE, sannan kuma layuka da yawa na PTFE siririn fim suna da rauni a bayan ƙarfe waya, kuma a ƙarshe a nannade cikin wutar makera don ƙirƙirar ta. Bangon ciki na PTFE mai layi wanda aka yi wannan aikin yana da santsi, kuma bangon waje yana karkace saboda ƙarar da ƙarfin roba na waya.

Sararin da ke tsakanin bangon waje na PTFE da aka saka bututu da kuma bangon ciki na bututun ƙarfe an cika shi da resin (ba tare da saura iska ba). Za a iya haɗa maƙarar ƙwanƙwasa da bututun ƙarfe. A lokaci guda, ana iya ɗaure shi a tam a bangon waje na layin PTFE mai karkace. Bayan warkar da gudan da aka cika, sai aka samar da juyawar karkace wacce aka toshe ta da bangon waje na rufin. Wannan tsarin yayi kama da hadewar goro da kuli. A gefe guda, zai iya iyakance yadda ya kamata da rama fadadawar yanayin zafi da ƙarancin sanyin rufin PTFE; a gefe guda kuma, taurin waya da karfe na iya inganta ingantaccen juriya na matsi na rufi na PTFE.

Bayanin diamita: dn25-200 mm

Zafin jiki na aiki: - 50-180oc

Matsalar aiki: 0.5-1.6mpa

Nau'i na uku: PTFE turawa (matsi) bututu da aka liƙa tare da madaidaiciyar bututu

An fi sani da turawa (matsi) madaidaiciya bututu, ana amfani dashi ko'ina a cikin ƙasashe masu tasowa a cikin 1990s.

Tsarin masana'antu: da farko, ana amfani da foda PTFE da aka shigo dashi don turawa (extrude) bututun, sannan kuma an tilasta shi cikin bututun ƙarfe mara ƙamshi (ƙananan diamita na layin ya ɗan fi girma fiye da diamita na ciki na bututun ƙarfe da 1.5- 2mm) don ƙirƙirar rufi mara matsi mara ƙarfi. Don kawar da matsin, ana sanya shi a cikin murhu da zafin rana zuwa 180oC don maganin zafin jiki na yau da kullun, saboda a iya amfani da shi a yanayin zafin da ke ƙasa da 180oC. A lokaci guda, tura (matsi) sandar bututun

Thearfin zafin jiki a bayyane ya fi na bututun rauni. Bututun yana da juriya mai kyau ga matsi mai kyau da mara kyau.

Bambanci tsakanin rufin PTFE da na roba

Anyi amfani da layin tetrafluoroethylene ta hanyar amfani da juriya na lalata fluorine, juriya mai zafin jiki mai karfi, acid mai karfi da kuma juriya na alkali, kyakkyawar mannewa, rayuwar tsawan rai da kuma juriya mai karfi. Dukkanin feshin tetrafluoroethylene babban aiki ne na fasaha, menene tsarin aikinshi? 1. Kafin fesawa, farfajiyar tana buƙatar yin sandblasted da roughened, kuma ana fesa mai share fage na musamman. 2. Sa'annan ana ɗora foda mai amfani da wutar lantarki ta hanyar kayan lantarki masu ƙarfin lantarki, kuma a daidaita su a saman aikin a ƙarƙashin aikin filin lantarki. 3. Bayan yin burodi mai zafi mai tsayi, gutsurarrun clinker ɗin zai narke cikin layin kariya mai ɗumbin yawa, wanda aka manne shi da fuskar aikin. Misali, fim mai kaurin 1 mm mai kauri shima ana bukatar feshi da gasa akai-akai sau 5-6. Gabaɗaya, ana iya fesa matsakaicin kauri zuwa 2mm. Rufin PTFE fasaha ce da ake amfani da ita a halin yanzu. Yana yin cikakken amfani da haɓakar lalata ta fluorine, tsabtar tsarkakakke, tsafta, rashin mannawa, ba rigar ruwa, shafa mai kai, jure juriya, tsayin daka da ƙarancin zafin jiki, rufi, da sauransu. manufa mafi kyau don cimma tasirin shafi. Ana kuma kiran rufin roba. Shine a lika farantin roba da aka sarrafa akan farfajiyar ƙarfe tare da mannewa don rarrabe matsakaiciyar matsakaiciya daga matin ƙarfen da nufin kariya. Ana amfani da roba na zahiri da roba roba don yin rufi. Mafi yawan roba da ake amfani da ita a cikin rufin kayan aikin sunadarai ita ce roba ta halitta. Babban abin da keɓaɓɓen roba shine cis polymer na isoprene, wanda ake lalata shi ta hanyar ƙara sulphur. Roba mai narkewa tana da ƙarfin juriya da ƙarfin inji. Yana za a iya raba cikin taushi roba, Semi-wuya roba da kuma wuya roba iri uku. Hard roba yana da kyakkyawan juriya na lalata, tsufa da ƙarfin ƙarfi da ƙarfe. Roba mai laushi yana da kyakkyawan juriya mai sanyi, juriya mai zafi da tasirin juriya, kuma yana da wata elasticity; Semi mai wuya roba yana tsakanin biyu. Toari da ƙwayoyi masu ƙarfi da wasu abubuwa masu narkewa, roba mai tauri na iya tsayayya da lalata yawancin yawancin ƙwayoyin cuta, ƙwayoyin cuta, alkalis, gishiri da giya. Sabili da haka, ana amfani da rufin roba mai wuya azaman babban ƙarfe mai lalata ƙarfe. Za'a iya rarraba roba mai narkewa zuwa cikin roba mai narkewa, matsin lamba na ruwan zafi na yau da kullun da roba na al'ada. Ana amfani da robar da aka yi amfani da ita cikin manyan kayan tsince-tsalle.