1. Intshayelelo:I-PTFEnjengoMtshintshi weMidlalo kwiTekhnoloji yeValve
Iivalvu zizinto ezibalulekileyo kwiinkqubo zolawulo lolwelo, apho ukusebenza kuchaphazela ngokuthe ngqo ukhuseleko, ukusebenza kakuhle, kunye neendleko zokusebenza. Nangona iintsimbi ezifana nentsimbi engagqwaliyo okanye ii-alloys bezisoloko zilawula ukwakhiwa kweevalvu, ziyasokola nokugqwala, ukuguguleka, kunye nokugcinwa okuphezulu kwiindawo ezinoburhalarhume.I-Polytetrafluoroethylene (PTFE), i-fluoropolymer esebenza kakhulu, ichaze ngokutsha uyilo lwevalvu ngokujongana nale mida. Iimpawu zayo ezikhethekileyo—ukungangeni kweekhemikhali, ukumelana nobushushu, kunye nokuzithambisa—zenza iivalvu zisebenze ngokuthembekileyo kwizicelo ezibolayo, ezicocekileyo kakhulu, okanye ezishushu kakhulu. Eli nqaku lihlola indlela i-PTFE ephucula ngayo ukusebenza kweevalvu kumashishini, ukusuka ekucutshungulweni kweekhemikhali ukuya kumayeza, kunye nendima yayo ekuqhubeni uyilo olutsha kubuchwepheshe bokuvala kunye nesayensi yezinto eziphathekayo.
2. Indlela i-PTFE ejongana ngayo nemingeni yevalvu ebalulekileyo
Ulwakhiwo lwemolekyuli ye-PTFE, oluphawulwa ziibhondi ze-carbon-fluorine ezinamandla, lubonelela ngomxube weempawu ezoyisa ukusilela kwevalvu eqhelekileyo:
Ukungangeni kweekhemikhali: I-PTFE imelana phantse nazo zonke izinto ezihlaselayo, kuquka ii-asidi ezinamandla (umz., i-sulfuric acid), ii-alkali, kunye nezinyibilikisi zendalo. Oku kuphelisa ukuvuza okubangelwa kukubola, ingxaki exhaphakileyo kwiivalvu zesinyithi.
Ukunyamezelana kobushushu obuBanzi: Ngoluhlu olusebenzayo oluqala kwi -200°C ukuya kwi +260°C, i-PTFE igcina ukuguquguquka kwizicelo ze-cryogenic kunye nozinzo kumphunga wobushushu obuphezulu, inciphisa ukungaphumeleli kwevalvu kwi-thermal cycling.
Umphezulu ongaphantsi kweFriction kunye noNganamatheliyo: I-coefficient ye-PTFE yefriction (~0.04) inciphisa i-activation torque kwaye ithintela ukwakheka kwezinto (umz., ii-polymers okanye iikristale), ukuqinisekisa ukusebenza kakuhle kwi-viscous okanye kwi-slurry media.
Akukho Kungcoliswa: Njengento ecocekileyo, i-PTFE ihlangabezana nemigangatho yobumsulwa bamayeza kunye nokulungiswa kokutya, ithintela ungcoliseko lwemveliso.
Ezi mpawu zivumela i-PTFE ukuba yandise ubomi bevalvu ngokuphindwe ka-3-5 xa kuthelekiswa nezixhobo zesiqhelo, ngelixa inciphisa amaxesha okugcinwa kunye nexesha lokungasebenzi.
3. Izinto Ezintsha Eziphambili Kwiinxalenye Zevalvu Ezisekelwe Kwi-PTFE
3.1 Iinkqubo zokutywina eziPhambili
I-PTFE iguqula ukutywinwa kwevalvu ngokusebenzisa uyilo oluhlawulela ukuguguleka kunye nokuguquguquka koxinzelelo:
Izizalisi zePTFE ezineekhoni: Ukutshintsha iipakeji zemveli ezimile okwe-V, izizalisi zePTFE ezineekhoni ezinensimbi engagqwaliyo zibonelela ngoxinzelelo lokutywina oluzilungelelanisayo. Phantsi koxinzelelo lwangaphakathi, uyilo lwekhoni luyaqina ngamandla, luthintela ukuvuza kwizicelo ezisebenza ngesantya esiphezulu.
Ii-PTFE-Graphite Stacks ezineeLayer ezininzi: Kwiziqu zeevalvu, ii-PTFE-graphite composites ezineeleya zigcina ukuthembeka kwetywina phantsi kokutshintsha kobushushu. Iileya ze-PTFE ziqinisekisa ukumelana neekhemikhali, ngelixa i-graphite iphucula ukuhanjiswa kobushushu, inciphisa ukuqhekeka koxinzelelo.
3.2 Iibhodi zeevalvu ezinemigca
Ukuze kukhuselwe ngokupheleleyo ulwelo, iivalvu zisebenzisa i-PTFE lining—umaleko oyi-2–5 mm odityaniswe kwimizimba yeevalvu zesinyithi. Le ndlela ihlukanisa imidiya ebolayo kwimiphezulu yesinyithi, ebalulekileyo ekuphatheni izisombululo ze-hydrochloric acid okanye ze-chlorine. Iindlela zanamhlanje ze-lining, ezifana nokubumba kwe-isostatic, ziqinisekisa ukugqunywa okufanayo ngaphandle kwezithuba, nto leyo ibalulekileyo ekuthinteleni ukubola kwendawo.
3.3 Izinto zangaphakathi ezigqunywe yi-PTFE
Izinto ezifana neebhola, iidiski, okanye iidiaphragms ezigqunywe ngePTFE zidibanisa amandla esakhiwo sesinyithi kunye nokumelana nokugqwala kwefluoropolymer. Umzekelo, kwiivalvu zebhola, iibhola ezigqunywe ngePTFE zifumana ukutywinwa okuqinileyo kwamaqamza (ISO 5208 Class VI) ngelixa zixhathisa ukugqwala kwe-galvanic.
4. Uthelekiso lweNtsebenzo: Iivalvu zePTFE vs. Iivalvu zesiqhelo
| Ipharamitha | Iivalvu zeSinyithi zeMveli | Iivalvu eziphuculweyo ze-PTFE |
| Ukumelana neekhemikhali | Ilinganiselwe kwii-asidi/ii-alkali ezithambileyo; inokuba nemingxuma | Iyamelana ne-98% yeekhemikhali (ngaphandle kweentsimbi ze-alkali ezinyibilikisiweyo) |
| Ubude beSeal | Iinyanga ezi-6 ukuya kwezili-12 kwimidiya egqwalisayo | Iminyaka emi-3–8 (imijikelo engaphezu kwe-100,000) ngenxa ye-PTFE engagugiyo |
| Ubuninzi boLondolozo | Ukuhlolwa kwekota kokutshintshwa kwesitywino | Ukuhlolwa konyaka; Iimpawu zokuthambisa ze-PTFE zinciphisa ukuguguleka |
| Ukuguquguquka kobushushu | Ifuna izixhobo ezahlukeneyo zokusetyenziswa kwe-cryogenic vs. kwiqondo lobushushu eliphezulu | Izinto ezisetyenziswayo zisebenza ukusuka kwi -200°C ukuya kwi +260°C |
| Ixabiso lilonke lobunini | Iphezulu (ukutshintshwa kwenxalenye rhoqo + ixesha lokungasebenzi) | Iphantsi ngama-40% kwiminyaka emi-5 ngenxa yokuqina kwayo |
5. Impembelelo kwiMizi-mveliso ngokubanzi yezisombululo ze-PTFE Valve
Ukucubungula iikhemikhali: Iivalvu zebhola ezifakwe i-PTFE kwimibhobho ye-sulfuric acid zinciphisa izehlo zokuvuza ziye kufutshane no-zero, nto leyo ibalulekileyo ekuhlangabezaneni nemigangatho yokhuseleko lokusingqongileyo.
Amayeza: Ii-diaphragms ze-PTFE kwiivalvu ezicocekileyo zithintela ukunamathela kweentsholongwane, nto leyo ebalulekileyo ekuthobeleni imigaqo ye-GMP kunye ne-FDA.
Amandla kunye noNyango lwaManzi: Iivalvu zebhabhathane ezitywiniweyo ze-PTFE kwiinkqubo zokupholisa ziyamelana nokukhula kunye nokuvezwa kwe-chlorine, nto leyo enciphisa ukulahleka kwamandla ngenxa yokumelana nokuhamba kwamanzi ngama-30%.
Ukwenziwa kweeSemiconductor: Izixhobo zePTFE ezicocekileyo kakhulu zithintela ungcoliseko lwe-ionic kwiinkqubo zokuhambisa amanzi acocekileyo kakhulu kunye negesi.
6. Iindlela Zekamva: Ukuhlanganiswa kwe-Smart PTFE kunye noZinzo
Indima ye-PTFE iyaqhubeka nokukhula ngokweemfuno zoshishino:
Ii-PTFE Blends ezizinzileyo: Ii-PTFE composites ezisetyenzisiweyo zigcina i-90% yokusebenza kwezinto ezingabonakaliyo ngelixa zinciphisa umngcipheko wokusingqongileyo.
Iivalvu Ezisebenza Nge-IoT: Iisensors ezifakwe kwiiseal ze-PTFE zijonga ukuguguleka nokuvuza ngexesha langempela, nto leyo evumela ukugcinwa kwangaphambili kwaye inciphise ixesha lokungasebenzi elingacwangciswanga.
Izinto ezidityanisiweyo: Ii-composites ze-PTFE-PEEK kwiimeko eziqatha (umz., ii-valve zenyukliya) zidibanisa ukuthambisa kunye nokuqina koomatshini, nto leyo etyhala imida yoxinzelelo kunye nemida yobushushu.
7. Isiphelo
I-PTFE iphucule kakhulu iteknoloji yeevalvu ngokusombulula imingeni yexesha elide yokugqwala, ukungqubana, kunye nolawulo lobushushu. Ukuhlanganiswa kwayo kwiitywina, ii-linings, kunye neengubo zecandelo kuqinisekisa ukuthembeka kumashishini ahlukeneyo, ukusuka kwizityalo zeekhemikhali ukuya kwiifektri ze-semiconductor. Njengoko isayensi yezinto ezibonakalayo iqhubeka, i-PTFE iya kuqhubeka nokwenza izisombululo zeevalvu ezikhaphukhaphu, ezisebenzayo ngakumbi, nezihlala ixesha elide ezihambelana neendlela zehlabathi zokuzinza kunye nokuguquguquka kwedijithali.
I-Ningbo Yokey Precision Technology isebenzisa ubuchule be-PTFE compounding ukuphuhlisa izitywino ezenziwe ngokwezifiso kunye nezixhobo zeevalvu kwizicelo zeemoto, zamandla, kunye nezemizi-mveliso. Iziqinisekiso zethu ze-IATF 16949 kunye ne-ISO 14001 ziqinisekisa umgangatho ohambelanayo kwiindawo ezinobungozi obukhulu.
Amagama angundoqo: iivalvu ze-PTFE, ukutywinwa kwe-fluoropolymer, ukumelana neekhemikhali, ulawulo lolwelo lwemizi-mveliso
Iireferensi
Iipropati zezinto zePTFE kuYilo lweeValve – Ijenali yoBunjineli beKhemikhali (2025)
Imigangatho yePTFE Lining yeMedia Ekonakalisayo – ISO 9393-1
Isifundo seTyala: I-PTFE kwiZicelo zeValve yeKhemikhali - Ikota yoKhuseleko lweNkqubo (2024)
Uphuhliso oluPhambili lweFluoropolymer – Izinto ezisetyenziswa namhlanje (2023)
Eli nqaku lenzelwe iinjongo zolwazi. Ukusebenza kuyahluka ngokusekelwe kwiimeko ezithile zesicelo.
Ixesha leposi: Jan-16-2026