Yintoni ithumbu elifakwe kwi-ptfe |BESTEFLON

Kwiminyaka yakutshanje, i-polytetrafluoroethylene (i-Teflon) luhlobo lwe-anti-fouling kunye neemveliso ezichasayo zombane kunye neshishini lepetrochemical.Nangona kunjalo, ezi ngxaki zilandelayo kufuneka zinikwe ingqalelo ekhethekileyo xaI-PTFE inemigcaithumbuumgca udityanisiwe, ngaphandle koko ubomi benkonzo kunye nokhuseleko lombhobho we-PTFE owenziweyo uya kuchaphazeleka.

1. Xa uhlambulula indibano yendibano, kunqatshelwe ngokungqongqo ukulimaza isiseko sesinyithi.Akuvunyelwe ukubetha i-arc kwisiseko sesinyithi ngexesha le-welding.

2. Kwi-fillet inxalenye ye-fillet weld, ukuphakama kwe-fillet weld kuya kuba kukhulu kune-5mm, i-angle yokubonisa iya kuba nkulu okanye ilingane ne-3mm, kwaye i-angle yangaphakathi iya kuba nkulu okanye ilingane ne-10mm.

3. Xa welding iqokobhe PTFE lined umbhobho, kungcono ukwamkela indlela welding of double-sided butt welding.Oku kufuna umgangatho wobugcisa wabasebenzi bethu, i-weld kufuneka ibe tyaba (inguqu egudileyo okanye egudileyo), akukho pores, i-welding seam kunye ne-slag inclusion phenomenon, kunye nokuphakama kwe-weld akufanele kube ngaphezu kwe-2mm.Emva kwe-welding, i-spatter ebangelwa yi-welding iya kususwa ngokupheleleyo.

4. I-welding eqhubekayo kufuneka yamkelwe kwi-welding ye-PTFE ipayipi yelinen, kwaye i-weld seam ayiyi kuba neentanda okanye i-undercut eqhubekayo.Uphendlo oluNxulumeneyo:ephothiweyo ithumbu le-PTFE, PTFE umbhobho obhityileyo

I-Polytetrafluoroethylene (PTFE) lelinye lamagama asetyenziswa rhoqo epolytetrafluoroethylene.Ithumbu le-PTFE lisetyenziswa kumbhobho wentsimbi engatyiwayo, ngoko ke ubomi benkonzo yombhobho bude kakhulu kunethumbu lerabha okanye umbhobho werabha esongelwe ngentsimbi engatyiwayo.Ineenzuzo ezininzi kwiimveliso zerabha.

Iklasi yoku-I: I-PTFE ifakwe umbhobho othe tye kunye nezixhobo zombhobho

Ngokuqhelekileyo eyaziwa ngokuba ngumbhobho womgca okhululekileyo.Kule nkqubo, i-PTFE isetyenziselwa ukujika ibha.Ilungele uxinzelelo oluqhelekileyo kunye nombhobho wokuthutha woxinzelelo olulungileyo (njengombhobho wokucocwa kwenkunkuma emithathu, njl. njl.), kwaye akufanelekanga ukuba isetyenziselwe umbhobho onomthwalo (njengokungena nokuphuma kwempompo kunye nombhobho onokuvelisa uxinzelelo olubi. ngokuwisa okanye ukupholisa ngesiquphe).

Ukucaciswa kobubanzi: dn25-500mm

Ubushushu benkonzo: - 40-180oc

Uxinzelelo lwenkonzo: 1.6Mpa

Udidi lwesibini: I-PTFE igxininise umbhobho othe ngqo kunye nezixhobo zombhobho

Ngokuqhelekileyo kwaziwa ngokuba ngumbhobho oqinileyo osongelwe ngocingo lwentsimbi.

Inkqubo yokuvelisa: okokuqala, iileya ezininzi zefilimu ye-PTFE zilimala kumngundo, emva koko ucingo lwentsimbi (Ø 0.5-1mm) lulimale ngokuvunguza kwifilimu ye-PTFE, kwaye emva koko iileya ezininzi ze-PTFE ifilimu ebhityileyo inxeba ngaphandle kwentsimbi. ucingo, kwaye ekugqibeleni zisongelwe eziko ukuze kwenziwe.Udonga lwangaphakathi lwe-PTFE lufakwe umbhobho owenziwe yile nkqubo lugudileyo, kwaye udonga lwangaphandle luyi-spiral corrugated ngenxa yomthamo kunye namandla alastiki ocingo lwentsimbi.

Isithuba phakathi kodonga lwangaphandle lwe-PTFE umbhobho owenziweyo kunye nodonga lwangaphakathi lombhobho wensimbi luzaliswe nge-resin (ngaphandle komoya oseleyo).I-resin yokuzalisa inokudityaniswa ngokuqinileyo kumbhobho wensimbi.Ngaxeshanye, inokubotshwa ngokuqinileyo kudonga lwangaphandle lwe-PTFE liner.Emva kokunyangwa kwe-resin egcweleyo, i-spiral ripple yenziwa evalekile kunye nodonga lwangaphandle lwe-lining.Esi sakhiwo sifana nokudibanisa i-nut kunye ne-bolt.Kwelinye icala, inokunciphisa ngokufanelekileyo kwaye ibuyekeze ukwandiswa kwe-thermal kunye nokucutha okubandayo kwe-PTFE lining;kwelinye icala, ukuqina kocingo lwentsimbi kunokuphucula ngokubonakalayo ukunganyangeki koxinzelelo lwe-PTFE lining.

Ukucaciswa kobubanzi: dn25-200 mm

Ubushushu bokusebenza: - 50-180oc

Uxinzelelo lokusebenza: 0.5-1.6mpa

Uhlobo lwesithathu: PTFE tyhala (cudisa) umbhobho ofakwe ngokuqinileyo ngombhobho othe ngqo

Ngokuqhelekileyo eyaziwa ngokuba yi-push (cudisa) efakwe umbhobho othe tye, isetyenziswa kakhulu kumazwe aphuhlileyo kwiminyaka yoo-1990.

Inkqubo yokuvelisa: okokuqala, i-PTFE powder evela kumazwe angaphandle isetyenziselwa ukutyhala (i-extrude) umbhobho, kwaye emva koko inyanzeliswa kumbhobho wensimbi ongenamthungo (ububanzi obungaphandle bomgca bukhulu kancinci kunobubanzi obungaphakathi bombhobho wensimbi nge-1.5- 2mm) ukwenza umthungo oqinileyo welinen.Ukuze kupheliswe uxinzelelo, ifakwe kwisithando somlilo kwaye ifudunyezwe kwi-180oC ukwenzela unyango oluqhelekileyo lokushisa, ukwenzela ukuba lusetyenziswe kwiqondo lokushisa elingaphantsi kwe-180oC.Ngexesha elifanayo, tyhala (cofa) i-shaft yombhobho

Amandla okuqina ngokucacileyo angcono kunombhobho wenxeba.Umbhobho unokumelana okufanelekileyo noxinzelelo olulungileyo kunye nolubi.

Umahluko phakathi komgca we-PTFE kunye nomgca werabha

I-Lining tetrafluoroethylene isetyenziselwa ukuxhathisa kwe-fluorine kwi-corrosion, ukumelana nobushushu obuphezulu, i-asidi eqinile kunye nokumelana ne-alkali, ukunamathela okugqwesileyo, ubomi obude benkonzo kunye nokumelana nokungena okunamandla.I-tetrafluoroethylene yonke yokutshiza ngumsebenzi wobugcisa obuphezulu, yintoni inkqubo yayo ehamba ngayo?1. Ngaphambi kokutshiza, umphezulu kufuneka uhlanjululwe kwaye uhlanjululwe, kunye noluhlu lwe-primer ekhethekileyo lufafazwe.2. Emva koko i-fluoroplastic powder ihlawuliswa ngezixhobo eziphezulu ze-electrostatic, kwaye i-adsorbed ngokulinganayo phezu kwendawo yokusebenza phantsi kwesenzo sentsimi yombane.3. Emva kokubhaka okuphezulu kweqondo lokushisa, i-clinker particles iya kunyibilika kwi-dense layer yokukhusela, ehlanganiswe ngokuqinileyo phezu kwendawo yokusebenza.Ngokomzekelo, ifilimu yokugqoka i-1 mm iphinda ifune ukutshizwa kwaye ibhakwe ngokuphindaphindiweyo ngamaxesha angama-5-6.Ngokuqhelekileyo, ubukhulu obukhulu bunokutshizwa ukuya kwi-2mm.I-PTFE lining bubuchwephesha obusetyenziswa kakhulu ngoku.Isebenzisa ngokupheleleyo ukuxhathisa kwe-fluorine kwi-corrosion, ukucoceka okuphezulu, ukucoceka, ukungabambeleli, ukungazinzi, ukuzithambisa, ukumelana nokunxiba, ukumelana nobushushu obuphezulu kunye nokuphantsi, ukugquma, njl.nj imeko efanelekileyo yokufezekisa umphumo wokugquma.I-rubber lining ikwabizwa ngokuba yi-rubber lining.Kukuncamathela ipleyiti yerabha esetyenzisiweyo kumphezulu wesinyithi kunye ne-adhesive ukwahlula i-corrosive medium from the metal matrix ngenjongo yokukhusela.Irabha yendalo kunye nerabha yokwenziwa isetyenziselwa umgca.Uninzi lwerabha esetyenziswa kwilayini yezixhobo zekhemikhali yirabha yendalo.Inxalenye ephambili yerubha yendalo yi-cis polymer ye-isoprene, ehlanjululwa ngokufaka isulfure.Irabha ene-vulcanized inokumelana nobushushu obuthile kunye namandla omatshini.Inokohlulwa ibe yirabha ethambileyo, irabha engaqinanga kunye nerabha eqinileyo iindidi ezintathu.Irabha eqinileyo inokumelana nokugqwala okulungileyo, ukuxhathisa ukwaluphala kunye nokomelela okuqinileyo kwentsimbi.Irabha ethambileyo inokumelana nokubanda okuhle, ukuxhathisa ubushushu kunye nokumelana nempembelelo, kwaye inokuqina okuthile;irabha enzima iphakathi kwesibini.Ukongeza kwi-oxidants eyomeleleyo kunye nezinye izinyibilikisi, irabha eqinile inokuxhathisa ukubola kobuninzi be-acids ye-inorganic, i-organic acids, i-alkalis, ityuwa kunye ne-alcohols.Ngoko ke, i-rubber eqinile isetyenziswa njengeyona nto i-non-metallic anti-corrosion material.Irabha enevulcanized inokohlulwa ibeyirabha evulcanized yangaphambili, uxinzelelo oluqhelekileyo lwamanzi ashushu zerabha evulcanized kunye nerabha yendalo evulcanized.Irabha evuthwe ngaphambili isetyenziswa kwizixhobo zokuchola ezikhulu.