Mumakore achangopfuura, polytetrafluoroethylene (Teflon) rudzi rweanopokana nekusvibisa zvigadzirwa zvemasimba emagetsi uye indasitiri yepetrochemical. Nekudaro, anotevera matambudziko anofanirwa kubhadharwa kutarisisa kune iyo iyo PTFE yakarongedzwa hosipaipi tambo yakasungwa, zvikasadaro hupenyu hwebasa uye kuchengetedzeka kweiyo PTFE yakaiswa pombi inozokanganiswa. 1. Kana uchichenesa gungano remusangano, zvinorambidzwa zvachose kukuvadza hwaro hwesimbi. Izvo zvinorambidzwa kurova arc pachigadziko chesimbi panguva yekumonera. 2. Muchikamu chefillet weld, kukwirira kweflet weld kunofanira kuve kwakakura kupfuura 5mm, kona yekufungidzira ichave yakakura kudarika kana yakaenzana ne3mm, uye kona yemukati ichave yakakura kudarika kana yakaenzana ne10mm. 3. Paunenge uchirovera ganda rePTFE yakatetepa pombi, zvirinani kutora nzira yekutungidza yemaviri-mativi magaro esimbi. Izvi zvinoda hunyanzvi padanho revashandi vedu, iyo weld inofanira kunge yakati sandara (yakatsetseka kana kutsetseka shanduko), isina pores, Welding musono uye slag inosanganisirwa chiitiko, uye kukwirira kweiyo weld hakufanirwe kuve kwakakura kupfuura 2mm. Mushure mekudonha, chipenga chinokonzereswa newelding chinofanira kubviswa zvachose. 4. Kuenderera mberi kwekutsvaira kunofanirwa kutorwa mukuwisira PTFE yakarongedzwa pombi, uye iyo weld musono haizove nekutsemuka kana kuenderera undercut.

Polytetrafluoroethylene (PTFE) rimwe remazita anowanzo shandiswa e polytetrafluoroethylene. PTFE hosipaipi inoshandiswa mune isina simbi hosipaipi, saka hupenyu hwese hose hwakareba kupfuura pombi yerabha kana pombi yerabha yakaputirwa nesimbi isina chinhu. Iine mikana yakawanda pamusoro pezvigadzirwa zverabha.

Kirasi I: PTFE yakarongedzwa yakatwasuka pombi uye pombi fittings

Inowanzozivikanwa seyakasununguka liner pombi. Mukuita uku, PTFE inoshandiswa kudzosera bhaa. Iyo inokodzera kumanikidza kumanikidza uye yakanaka yekumanikidza yekufambisa pombi (senge matatu marara pombi yekurapa, nezvimwewo), uye haifanire kushandiswa kune iyo pombi ine mutoro (senge inlet uye nzira yekubuda kwepombi uye pombi iyo inogona kuburitsa yakaipa kumanikidza. nekudonha kana kutonhora kamwe kamwe).

Dhayamita tsanangudzo: dn25-500mm

Tembiricha yebasa: - 40-180oc

Basa rekumanikidza: 1.6Mpa

Kirasi II: PTFE yakasimba yakarongedzwa yakatwasuka pombi uye pombi fittings

Inowanzozivikanwa seyakaomeswa lining pombi yakaputirwa newaya yesimbi.

Mukugadzira muitiro: chokutanga, akaturikidzana akawanda PTFE firimu vari ronda pamusoro Foroma, ipapo simbi waya (Ø 0.5-1mm) iri zononoka ronda pamusoro PTFE firimu, uye ipapo akaturikidzana akawanda PTFE dzakaonda firimu vari ronda panze kunze simbi waya, uye pakupedzisira yakaputirwa muvira rekuumba. Rusvingo rwemukati rwe PTFE yakakomberedzwa pombi yakagadzirwa neiyi nzira inotsvedzerera, uye rusvingo rwekunze rwakakora nekuda kwehuwandu uye simba rakasununguka resimbi yesimbi.

Iyo nzvimbo pakati pekunze rusvingo rwe PTFE yakakomberedzwa pombi uye yemukati madziro esimbi pombi yakazadzwa neine resin (isina mweya wakasara). Iyo yekuzadza resin inogona kusungwa zvakasungwa kune iyo simbi pombi. Panguva imwecheteyo, inogona kusungwa zvakapamirwa pamadziro ekunze emhepo PTFE liner. Mushure mekurapwa kweiyo yakazara resini, iyo mweya wekutenderera unoumbwa uyo wakavezwa pamwe nekunze rusvingo ripple yemutsara. Ichi chimiro chakafanana nekubatanidzwa kwe nati uye bhaudhi. Kune rimwe divi, inogona kunyatsoganhurira uye kuripa iyo yekuwedzera kupisa uye kutonhora kudzvinyirira kwePTFE lining; kune rimwe divi, iyo simbi waya kuomarara kunogona zvakanyanya kugadzirisa kusagadzikana kwekumanikidza kwePTFE lining.

Dhayamita tsananguro: dn25-200 mm

Kushanda tembiricha: - 50-180oc

Kushanda kumanikidza: 0.5-1.6mpa

Rudzi rwechitatu: PTFE Push (svina) pombi yakasungwa yakarongedzwa nepombi yakatwasuka

Inowanzozivikanwa sePush (kusvina) yakanamirwa pombi yakatwasuka, inoshandiswa zvakanyanya munyika dzakabudirira muma1990.

Kugadzira maitiro: chekutanga, iyo yekunze PTFE upfu inoshandiswa kusunda (extrude) iyo pombi, uyezve inomanikidzwa kupinda isina musono simbi pombi (iyo yekunze dhayamita ye liner yakati kurei zvishoma kupfuura yepakati dhayamita yepombi yesimbi ne 1.5- 2mm) kugadzira isina musono yakaoma lining. Kuti ubvise kumanikidzwa, inoiswa muvira uye inopisa kusvika 180oC yekurapa tembiricha yenguva dzose, kuitira kuti igone kushandiswa mukati mekupisa pazasi pe180oC. Panguva imwecheteyo, pusha (svina) shaft yepombi

Iyo tensile simba iri pachena iri nani pane iyo yemaronda chubhu. Iyo pombi ine yakanakira kuramba kune yakanaka uye yakaipa kumanikidza.

Musiyano uripo pakati PTFE lining uye yerabha lining

Lining tetrafluoroethylene inoitwa kushandiswa kwe fluorine's corrosion resistance, high tembiricha yekudzivirira, yakasimba asidi uye alkali kuramba, kunamatira kwakanakisa, hupenyu hwakareba hwebasa uye yakasimba kupinda mukati kusagadzikana. Iyo yese yekumwaya tetrafluoroethylene ibasa repamusoro-soro, ndeapi maitiro ayo anoyerera? 1. Usati wamwaya, iyo yepamusoro inoda kuiswa sandblasted uye roughened, uye rukoko rweyakakosha primer inosaswa. 2. Ipapo iyo fluoroplastic powder inobhadhariswa nemagetsi emagetsi emagetsi, uye zvakaenzana adsorbed pamusoro peiyo workpiece pasi pechiito chemunda wemagetsi. 3. Mushure mekudziya kwakanyanya kwekubheka, iyo inonamira inonyungudika ikaita dense yekudzivirira, iyo yakasungirirwa pamusoro peiyo workpiece. Semuenzaniso, 1 mm gobvu yekumonera firimu inodawo kumwayiwa uye kubikwa kakawanda kwe5-6 nguva. Kazhinji, iyo yakanyanya ukobvu inogona kusaswa kusvika 2mm. PTFE lining tekinoroji inoshandiswa zvakanyanya parizvino. Inoshandisa zvizere fluorine's ngura kuramba, kuchena kwakanyanya, utsanana, kusanamira, kusanyorova, kuzvigadzira lubrication, kupfeka kuramba, yakakwira uye yakadzika tembiricha kuramba, kuputira, nezvimwe mukuita kwekuvaka, iwo magetsi uye azvino anogara achigadziriswa kune iyo yakanaka mamiriro kuti vabudirire unhani maturo. Rubber lining inonziwo lining yerabha. Iko kunamatira iyo yakagadziriswa rabha ndiro pane yesimbi pamusoro pamwe nekunamatira kupatsanura iyo inoparadza simbi kubva kune simbi matrix nechinangwa chekudzivirira. Natural rabha uye chakaita zvokugadzirwa rabha anoshandiswa lining. Mazhinji erabha anoshandiswa mumakemikari ekushandisa lining ndeye yakasikwa rubber. Chinhu chikuru chesiki yerabha ndeye cis polymer yesoprene, iyo inogadzirwa nekuwedzera sarufa. Irabha yakagadziriswa ine kumwe kupisa kupisa uye simba remuchina. Inogona kukamurwa yakapfava rabha, semi-yakaoma rabha uye yakaoma rabha matatu marudzi. Hard rabha ine yakanaka ngura kuramba, kukwegura nemishonga uye yakasimba yekubatanidza simba nesimbi. Soft rabha ine yakanaka kutonhora kuramba, kupisa kupisa uye kukanganisa kusagadzikana, uye ine kumwe kusimba; semi yakaoma rabha iri pakati pezviviri. Pamusoro peakasimba maokisheni uye mamwe manyoro, akaomarara rabha anokwanisa kurwisa kuora kweakawanda asiri maorganic acids, organic acids, alkalis, munyu uye alcohol. Naizvozvo, iyo yakaoma yerabha lining inoshandiswa seyakanyanya isiri yesimbi anti-ngura zvinhu. Vulcanized rabha inogona kuganhurwa mu pre vulcanized rabha, zvakajairika kumanikidza inopisa mvura inopisa uye yakasanganiswa rabha. Pre vulcanized rubber inoshandiswa mumidziyo mikuru yekunhonga.