I le taimi nei, o mea paipa o loʻo faʻaaogaina i taavale e mafai ona vaevaeina i ni vaega se tolu: paipa nylon, paipa paipa ma paipa uʻamea.Ole fa'aoga masani o le nailon paipa ole PA6, PA11 ma PA12.O nei mea e tolu o loʻo taʻua faʻatasi o le aliphatic Pa. PA6 ma le PA12 o le polymerization tatala mama ma le PA11 o le polymerization condensation.
1. O le lelei opaipa nilono lo'o taua i lalo: ▼ sili ona lelei le suau'u (gasoline, tiso), lubricating suau'u ma ga'o, ma kemikolo tetee.▼ maualalo le vevela a'afiaga: PA11 e mafai ona tatalia le maualalo o le vevela - 50 ℃ ma PA12 e mafai ona tatalia le maualalo o le vevela - 40 ℃.▼ lautele faʻaogaina o le vevela: o le faʻaogaina o le vevela o le PA11 o le - 40 ~ 125 ℃, ma le tulaga o le PA12 o le - 40 ~ 105 ℃.A maeʻa le suʻega matua i le 125 ℃, 1000h, 150 ℃ ma le 16h, PA11 paipa e lelei le faʻatinoina o aʻafiaga o le vevela.▼ tetee i le okesene ma le masima masima corrosion: tetee i le 50% zinc chloride fofo mo le sili atu i le 200H.▼ tete'e i ma'a acid ma osone.▼ o se mea e lubricating le tagata lava ia ma teteʻe teteʻe, ofuina teteʻe, vaivai teteʻe ma le maualalo o feseʻenaʻiga coefficient.▼ UV tetee ma le soifua matua o le ea: o le UV tetee o lanu masani PA11 e mafai ona faaaoga mo 2.3-7.6 tausaga e faalagolago i itulagi eseese;O le malosi o le anti ultraviolet o le PA11 uliuli na faʻateleina i le fa taimi pe a uma ona faʻaopoopoina le anti ultraviolet absorbent.
O le fa'agaioiga o le paipa nailon o le: ① fa'aulufaleina ② faiga fa'avae ③ fa'apotopotoga fa'atasiga ④ fa'ailoga.Faalaua'itele,paipa nilone sili ona lelei i le faatinoga pe a faatusatusa i paipa uʻamea, ae sili atu i vailaau corrosion tetee ma ofuina tetee faatusatusa ipaipa uamea, lea e tele sona sao i le faʻaitiitia o le mamafa o taavale ma le tau o le gaosiga.
2. E telefa'agaau pa'ufausaga mo taavale, ma o fausaga faavae e aofia ai ituaiga masani, ituaiga faamalosia ma ituaiga ufiufi.
O le fausaga faavae o le faagaau paʻu i le taimi nei, o mea sili ona faʻaaogaina paipa paipa i le maketi o FKM, NBR, Cr, CSM ma eco: ▼ le vevela auaunaga o FKM (fluororubber) o le 20 ~ 250 ℃, lea e masani ona faʻaaogaina mo O- mama, fa'amaufa'ailoga suau'u, vaega totonu ofa'agaau suauuma isi oloa fa'amau.▼ le vevela auaunaga o le NBR (nitrile paʻu) e 30 ~ 100 ℃, lea e masani ona faʻaaogaina mo paʻu paʻu, mama faʻamau ma faʻamaufaʻailoga suauu.▼ le vevela auaunaga o Cr (chloroprene paʻu) e 45 ~ 100 ℃, lea e masani ona faʻaaogaina mo lipine, faagaau, ufiufi uaea, paʻu ipu paʻu 'pefu ufiufi, ma isi. ▼ le vevela auaunaga o CSM (chlorosulfonated polyethylene paʻu) e 20 ~ 120 ℃, lea e masani ona faʻaaogaina mo paʻu, lipine, faʻaofuofu aloiafi, uaea, vaega eletise, O-mama, faitotoʻa ma faamalama faʻamau faʻamau, ma isi. lea e masani ona faʻaaogaina mo mama vevela, diaphragm, paʻu teʻi, paʻu paʻu, ma isi.
3. E pei o se ituaiga paipa malo,paipa uameaei ai le lelei o le mamafa mamafa, tau maualuga ma faigofie gau.O le mea lea, o le tele ma le tele o pisinisi taʻavale e filifili e tuʻu le faʻaogaina o paipa uʻamea.I le taimi nei, ua sili atu le talafeagai paipa alumini uʻamea mo faiga ea malulu.Ae ui i lea, o le malosi faʻamalosi, paʻu o le mamafa ma le matua tetee o paipa uʻamea e sili atu nai lo paipa nailoni ma paipa paipa.
Taimi meli: Me-24-2022