Kemikɛli iziniw kɔnɔ, pibilikiw ni minɛnw bɛ binkanni kɛ tuma bɛɛ ka bɔ fɛnɲɛnamafagalan juguw fɛ – asidi barikamaw, alkali funtenimanw, fɛnɲɛnamafagalanw, ani watara. PTFE kase ye fura ye min bɛ kɛ ka caya ka ɲɛsin sɔgɔsɔgɔninjɛ kɛlɛli ma, a tɛ nɔrɔ, ani a sirili la. Nka kaseti ɲuman sugandili man nɔgɔn i n’a fɔ ka funteni hakɛ min ka bon kosɛbɛ, o sugandili.
Aokai PTFE ye PTFE kaseti di kemikɛliw kama kabini san tan caman. Nin gafe in bɛ PTFE kaseti jɔcogo ɲɛfɔ min bɛ kɛ fɛn saba ye, a koloma sugandili sariyaw (funteni, kemikɛlifɛnw, masinw ka wajibiw), ani jɔli laadilikanw kɔrɔlenw.
PTFE kasɛti min bɛ funteni caman na, o ka sigicogo saba
Jagokɛlaw ka PTFE kaseti baarakɛcogo bɛɛ bɛ latigɛ ni jɔcogo saba ye:
Layer structurel (Layer structurel) ye
Fɛn minnu bɛ kɛ tuma caman na
A bɛ nɔ bila fɛn dilannenw sugandili la
Surface baarakɛcogo layɛrɛ
PTFE filimu saniyalen / PTFE-imprégré fibre de verre fini
A bɛ fɛnw mara minnu tɛ nɔrɔ, kemikɛli kɛlɛli, ani funteni hakɛ maksimali
Substrat min bɛ barika don
Foyi tɛ (filimu saniyalen) / Fibre de verre fini / Aramid fini
A bɛ masin fanga, a ka sɔgɔsɔgɔcogo, ani a ka sɔgɔsɔgɔninjɛ kunbɛncogo dantigɛ
Layer (layer) min bɛ nɔrɔ
Silikoni PSA, Akiriliki PSA, PSA min sinsinnen bɛ lastikuw kan
A bɛ kaseti bɛɛ sanfɛla funteni dan ni a ka kemikaliya kunbɛncogo sigi; a ka c’a la, baarakɛcogo jɛɲɔgɔnya barikamaba don
Hakilila kɔrɔlen : Hali ni PTFE yɛrɛ bɛ se ka baara kɛ ka ɲɛ ka bɔ -190°C la ka se 260°C ma waati jan kɔnɔ, nɔrɔlan ye baarakɛcogo buteli ye . Aw bɛ nɔrɔlan sugandi ka da baarakɛyɔrɔ yɛrɛ kan, aw kana kɛ PTFE sanfɛla dɔrɔn ye.
Sugandili sariyakolo jɔnjɔnw ani bɛnkan sariyakolow
1. Baarakɛyɔrɔ funteni – nɔrɔlenw sugandili de ye fɔlɔfɔlɔ ye
Funteni hakɛ (funteni hakɛ) hakɛ
Adhesif min bɛ ladilikan di
Munna
200°C – 260°C (waati jan) .
Silikoni PSA (a wajibiyalen don) .
Nɔrɔlan kelenpe min bɛ tackiness sabatilen mara nin yɔrɔ in na; tolen fitininw bɔli kɔfɛ
120°C – 180°C ni fɛnɲɛnamafagalan & tulu tali ka fisa
PSA akiriliki min ka funteni ka bon
Jɛɲɔgɔnya barikama ka tɛmɛ silikoni kan, nka a bɛ dɛsɛ joona 260°C la
A bɛ 100°C duguma
Akiriliki walima lastikuw bɛ kɛ ka caya
A bɛ sɔn, nka a man teli ka kɛ kemikɛli sigidaw la
Aokai PTFE kɔlɔsili: Ni aw bɛ a kɛ 200°C+ la, akiriliki PSA tɛ sɔn – a bɛna tiɲɛ, ka nɔgɔya, ka kɛ sababu ye ka kaseti bɔ. Silikoni kelenpe de ye sugandili ye min bɛ se ka kɛ.
2. Kimikɛminɛnw – bɛnkan min bɛ nɔrɔ ni substrat cɛ
PTFE baarakɛ-yɔrɔ bɛ diɲɛ bɛɛ lajɛlen ka sɔgɔsɔgɔninjɛ kunbɛnni jira (n’a ma fɔ nɛgɛ alkali wulilenw ani gazi fluorine min bɛ funteni caman sɔrɔ). Nka, kemikɛlifɛnw bɛ don ka bɔ kaseti da la ka nɔrɔlan sɔgɔ k’a ɲɛsin a yɛrɛ ma.
Medias chimiques (Mɔgɔw ka kunnafonidilanw).
Adhesif min bɛ ladilikan di
Jantoyɛrɛla
Asidi barikama minnu tɛ fɛnɲɛnamaw ye (HCl, H2SO4 ≤80%), alkali barikamaw (NaOH), saji, jisuma
PSA acrylique (grade min bɛ se ka furakɛ ni solvent ye) .
Silikoni bɛ funu fɛnɲɛnamafagalanw na; akiriliki ka ɲi, nka aw bɛ funteni hakɛ sɛgɛsɛgɛ (a ka ca a la ≤150°C) .
Waji min bɛ funteni caman na + asidi/alkali hakɛ caman (a bɛ kɛ cogo wɛrɛ la) .
Silicone PSA modifié + winding multi-layer
Ko gɛlɛnba – silikoni bɛ se ka jilama kɛ; barika don a la ni winding multi-layer ye
Ni funteni tɛmɛna 150°C kan ni fɛnɲɛnamafagalanw ye: Aw bɛ baara kɛ ni masinw ye minnu bɛ fɛnw siri walima minnu tɛ kola ye, minnu tɛ funteni dɔgɔya, PTFE kase/tubi saniyalen.
Baarakɛcogo misaliw ani substrat sugandili min bɛ bɛn o ma
Ultra-smooth non-stick surface, fibre wicking farati tɛ a la; a ka ɲi kosɛbɛ yɔrɔ fla ni yɔrɔ kurulenw na
Mixing shaft & rouleau enveloppement
PTFE fibre de verre fini ni silikoni nɔrɔlan min ka bon kosɛbɛ
A bɛ tension winding dɛmɛ; fibreglasi substrat bɛ tensile fanga caman di, a bɛ a yɛrɛ tanga deformation ma jiginni waati
Filɛriw datugucogo ani gaziw cili
Kasɛti filimu PTFE saniyalen min dilannen don ni masin ye
A bɛ baara kɛ ni PTFE nɛnɛ jibɔ nafolo ye walasa ka yɔrɔw fa; fibreglasi tɛ min na, o de wajibiyalen don
Manholes & sight glasses minnu bɛ asidi marayɔrɔ barikamaw la
PTFE filimu saniyalen / fibreglasi fini ni akiriliki nɛgɛ min tɛ se ka furakɛ
Filimu saniyalen bɛ fɛnw bɔ ɲɔgɔn na minnu bɛ fɛnw tiɲɛ; fibreglasi fini bɛ gɛlɛya ɲɛ; lap joints (lap joints) bɛ barika bonya ni layɛrɛ caman ye
Ladilikanw jɔli ni lakanani nafamaw
1. Surface pretreatment – o ye jɛɲɔgɔnya jusigilan ye
Tumu bɔli dafalen, nɔgɔ bɔli ani jalen de ka kan. Aw bɛ yɔrɔw ko ni asetɔni walima dɔlɔ ye ka sɔrɔ ka tasuma tobi joona walasa ka sirili fanga caya. O bɛ nɔgɔw bɔ ani ka nɛgɛ sanfɛla baara walasa a ka nɔrɔ kosɛbɛ.
2. Aw bɛ layiniw da ɲɔgɔn kan ani ka u lamini
A dɔgɔyalenba la, 2-3 ka kan ka kɛ fɛnɲɛnamafagalanw lakanani na ni 50% bɛ ɲɔgɔn dafa sɛrɛkili kelen na. Kaseti kunw ka kan ka barika bonya ni PTFE kase walima kabali sirilanw ye minnu bɛ bɛn ɲɔgɔn ma walasa ka u bali ka bɔ u la ka dafa nɔrɔlen donna kɔfɛ ni kunnafonidilanw ye.
3. Lakanali dakun – waati min na aw ka kan ka aw yɛrɛ tanga PTFE kaseti ma pewu
Nin kunnafonidilan juguman ninnu na, kaseti minnu bɛɛ bɛ ni nɔrɔ biologikiw ye, olu lakananen tɛ :
Fluor d’hydrogène (HF) .
Tobili min bɛ kɛ ni alkali barikama ye min hakɛ ka ca (>80%) .
Klori trifluoride (ClF3) .
Fɛɛrɛ wɛrɛ: Aw bɛ wuli ka taa PTFE fini dafalen na walima finimugu jɔlen weldalen na (nɛgɛ tɛ a la).
4. Fɛɛrɛ minnu bɛ kɛ ka fɛnw kɛlɛ minnu bɛ se ka wuli ka bɔ u nɔ na ani minnu tɛ se ka bɔn
Ni pibiliki bɛ fɛnw lase minnu bɛ se ka tasuma bɔ ani ni dalajɛ statiki bɛ se ka kɛ, aw bɛ PTFE kase anti-statique sugandi (a ka c’a la, a ɲɛ ye nɛrɛmuguma ye ni carbone filler ye, surface resistivity 106-109 Ω) walasa ka charge static jɛnsɛn lafiya la.
Kuma surun – PTFE kasɛti sugandili gafe teliya la kemikoro baarakɛcogo la
Ni aw ka sigida ye...
Sugandi...
Fɛngɛ...
200-260°C, asidi/alkali/waji
Silikoni PSA + fibre de verre substrat
PSA acrylique (a bɛna tiɲɛ) .
120-150°C, fɛnɲɛnamafagalanw
PSA acrylique (min bɛ se ka furajiw kɛlɛ) .
Silikoni PSA (funu bɛ kɛ furajiw la) .
>150°C, fɛnɲɛnamafagalanw
Film PTFE saniyalen + fixation mécanique
Kaseti nɔrɔlen suguya o suguya
HF, tobili >80% alkali, ClF3
PTFE dɔrɔn de bɛ kɛ (a tɛ kɛ ni nɛgɛ ye) .
Kase o kase ni nɔrɔ biologique ye
Fɛn minnu bɛ se ka tasuma don, farati min tɛ wuli
PTFE kase anti-statique (min falen bɛ carbone) la
Base standard min tɛ conducteur ye
Filɛri sigili, gap filling
Skived pure PTFE kasɛti filimu
Kase min barika ka bon ni fibre de verre ye
Aokai PTFE bɛ PTFE kasɛti suguya bɛɛ dilan ka kɛɲɛ ni kemikɛli ye – silikoni PSA min bɛ kɛ ka asidi/alkali baara kɛ ni funteni caman ye, akiriliki PSA min bɛ kɛ ka furajiw kɛlɛ, ani ka kɛ anti-statique grades ye. Aw ye anw sɔrɔ ni aw ka kemikɛlifɛnw ye, funteni hakɛ, ani masinko wajibiyalenw walasa ka sugandili kɛ ka kɛɲɛ ni aw sago ye.
Ni aw mago bɛ fɛn ɲɛfɔlenw na, baarakɛminɛnw ani furaw la minnu bɛ kɛ ka kɛɲɛ ni aw sago ye an ka fɛn dilannenw bɛɛ lajɛlen na i n’a fɔ PTFE fini min bɛ funteni caman bɔ, PTFE kasɛti nɔrɔlen min bɛ funteni caman na, PTFE cɛsirilan min bɛ funteni caman bɔ, PTFE cɛsirilan min tɛ fɛn tiɲɛ, PTFE fini min bɛ kɛ fan kelen fɛ, fɛnɲɛnamafagalan min bɛ se ka funteni caman kɛlɛ ani fini min bɛ se ka funteni kɛlɛ, aw bɛ se ka ɲɔgɔn sɔrɔ anw ka tɛmɛn kanw fɛ minnu bɛ duguma:
An bɛ tugu baarakɛlaw ka baarakɛcogo hakilila la tuma bɛɛ, min ɲɛsinnen bɛ danbe ma, ka izini ɲɛnabɔcogo kelenw di ni an dusukun bɛɛ ye ani ka kiliyanw dɛmɛni kɛ ni hakili ye jɛɲɔgɔnw bɛɛ ye!
