MalungaPTFE o-amakhonkcokunye nembali ye-PTFE elayishwe entlakohlaza ngolu hlobo lulandelayo:
Kwizicelo eziguquguqukayo ezifuna ukutywinwa kwizantya ezisezantsi ukuya phakathi kunye noxinzelelo, iinjineli zoyilo zithatha indawo ye-elastomeric engasebenzi kakuhle.O-amakhonkconge PTFE "C-ring" elayishiweyo entwasahlobo.
Xa ii-O-rings kunye nezinye iindlela zokutywina zesintu zingasebenzi, iinjineli zesixhobo sokuxilonga kunye nokuhanjiswa kweziyobisi zithatha indlela entsha, eneendleko ezingaphezulu ukonyusa ukusebenza koyilo lwezixhobo ezikhoyo: PTFE “C-Ring” spring seals.
I-C-seals yayiphuhliselwe okokuqala izixhobo zokuxilonga kusetyenziswa ipiston ephindaphindayo kwi-5 yeenyawo ngomzuzu isebenza kwindawo yokuhlambela amanzi malunga ne-100 ° F.Iimeko zokusebenza zincinci, kodwa ngokunyamezela okukhulu.Uyilo lwantlandlolo lwabiza i-elastomeric o-ring yokutywina ipiston, kodwa i-o-ring ayikwazanga ukugcina itywina esisigxina, ibangela ukuba isixhobo sivuze.
Emva kokuba iprototype yakhiwe, iinjineli zaqala ukukhangela ezinye iindlela.I-U-rings okanye i-standard lip seal, esetyenziswa ngokuqhelekileyo kwi-pistons, ayifanelekanga ngenxa yokunyamezela okukhulu kwe-radial.Akukwazeki ukuba zifakwe kwiindawo zokuphumla ezipheleleyo.Ufakelo ludinga ukunweba kakhulu, okukhokelela kwi-deformation kunye nokungaphumeleli kwangaphambi kwetywina.
Ngo-2006, i-NINGBO BODI SEALS .,LTD yeza nesisombululo somfuniselo: i-cated helical spring esongelwe kwi-PTFE C-ring.Ushicilelo lusebenza kanye njengoko kulindelekile.Ukudibanisa iipropathi zokukhuhlana okuphantsi kwe-PTFE kunye nejometri ye-boot ephuculweyo, "i-C-Rings" ibonelela ngetywina elithembekileyo, elisisigxina kwaye ligudile kwaye lithule kune-O-Rings.Ukongezelela, i-C-rings ifanelekile kwi-o-inqanaba elipheleleyo le-o-rings, ngokuqhelekileyo ayikhuthazwa kwizinto eziphathekayo ze-inelastic.Ngaloo ndlela, i-C-ring inokufakwa ngaphandle kokutshintsha idizayini yesixhobo sokuqala okanye ukusebenzisa naziphi na izixhobo ezikhethekileyo.
I-C-seal yokuqala yayineminyaka emibini ubudala.Ukusetyenziswa kwe-C-rings kuphucula ukusebenza kwemveliso kunye nokwandisa ubomi bezixhobo ngokunciphisa ixesha lokuphumla kunye neendleko zokugcina.
Izixhobo zokucinga zonyango, iimpompo ze-insulin, ii-ventilators, kunye nezixhobo zokuhanjiswa kweziyobisi zihlala zisebenzisa i-O-rings ukutywina izithuba ezimfutshane ze-axial.Kodwa xa i-radial deflection ifaneleka kakhulu, ii-O-rings azikwazi ukuhlawulela oku, okuhlala kukhokelela ekunxibeni, ukuguqulwa okusisigxina kunye nokuvuza.Ngaphandle kwezi ntsilelo, iinjineli ziyaqhubeka nokusebenzisa i-o-rings kuba ezinye izisombululo (umz. Iikomityi ze-U-cups, i-lip seal) azikwazi ukuhlangabezana neemfuno ze-radial deflection kwaye zifuna indawo ye-axial engaphezulu kune-o-rings.
I-C-ring yahlukile kuba inokungena kwindawo encinci ye-axial ngokuqhelekileyo ebonelelwe i-O-ring, ngelixa izitywina eziqhelekileyo zingenako.Ukongeza, i-C-rings inokwenziwa ngokwezifiso ngokupheleleyo ukuze ihambelane neemfuno zesicelo.Inokulungiswa kunye ne-ultra-thin and flexible lip yezicelo ze-cryogenic okanye umlebe ongqindilili wokusetyenziswa okuguquguqukayo apho itywina lifuna ukuxhathisa ukunxiba.
Ngenxa yokuba i-C-rings ivumela ukunyakaza okujikelezayo kunye nokuphindaphinda, zisisombululo esiguquguqukayo soluhlu olubanzi lweemveliso ezifuna ukutywinwa kwesantya esisezantsi ukuya kuphakathi, kubandakanywa iirobhothi zonyango, izixhobo zonyango eziphathekayo, kunye ne-probe / tubing connectors.I-C-rings ivumela ukunyamezela okukhulu ngokungaqhelekanga-ubuncinci ngokuphindwe kahlanu kunezitywina eziqhelekileyo zecandelo elifanayo elinqamlezayo.Uluhlu lokunyamezela luxhomekeke kuxinzelelo lwe-ambient, uhlobo oluphakathi kunye neemeko zonyango ezingaphezulu.I-C-rings iphinda isebenze kakuhle kwizicelo ze-static apho amacandelo kufuneka akhuselwe kwizinto ezingcolileyo zokusingqongileyo.
Ngokususa izinto ze-PTFE kuyilo lokuqala lwe-C-ring boot, iinjineli zakwazi ukunyusa ukuqina kunye nokuguquguquka.Ngenxa yoko, i-C-rings ibonakalise ukuba ilula kwaye iguquguqukayo kunokuba ilindeleke ekuqaleni, iyenze ifaneleke kwizicelo ezingezizo iisetyhula.I-C-rings isetyenziswe kwiimpompo zokuhanjiswa kweziyobisi kunye neepiston ze-oval.Ngenxa yokuba umlebe wetywina unokwenziwa kwi-PTFE enyulu okanye izaliswe yi-PTFE, i-C-ring litywina eliguquguqukayo kakhulu elihambelana nentsimbi kunye neenxalenye zeplastiki.
I-C-rings, ekuqaleni eyenzelwe ukusetyenziswa kunye nezixhobo zokuxilonga ezisekelwe emanzini, ziquka i-PTFE-jacketed springs helical.Kodwa i-C-rings inokwenziwa kusetyenziswa imithombo ye-helical band njenge-activators.Ngokutshintsha imithombo ye-helical ene-canted kunye ne-helical band springs, i-C-rings inokubonelela ngoxinzelelo oluphezulu lokutywina, olulungele ukusetyenziswa kwe-cryogenic okanye i-static.
Ubunjineli beBal Seal bubiza i-C-ring "yetywina eligqibeleleyo lehlabathi elingafezekanga" ngenxa yokukwazi ukubonelela ubomi obude benkonzo kwiindawo apho izithuba, ukugqitywa komphezulu kunye nezinye iimpawu zoyilo zahluka kakhulu.Nangona kungekho sitywina sigqibeleleyo, ukuguquguquka kunye nokwenziwa ngokwezifiso kwe-C-rings ngokuqinisekileyo kubenza babe yinto enomdla kwaye enokuba luncedo kwezinye izixhobo zonyango kunye nokuxilongwa.Olu luphawu olulula olufanelekileyo kuxinzelelo oluphantsi (<500 psi) kunye nesantya esiphantsi (<100 ft/min) izicelo apho ukungqubana okuphantsi kuyadingeka.Kule mimandla, i-C-rings inokubonelela ngesisombululo esingcono sokutywinwa kune-elastomeric O-rings okanye ezinye iindidi zokutywinwa eziqhelekileyo, ezinikezela abaqulunqi amandla okunyusa ubomi benkonzo kunye nokunciphisa amanqanaba engxolo ngaphandle kokuguqulwa kwezixhobo ezibizayo.
UDavid Wang nguMphathi weNtengiso yeHlabathi kwiZixhobo zoNyango kwiBal Seal Engineering.Injineli eneminyaka engaphezu kwe-10 yamava oyilo, isebenza kunye ne-OEMs kunye nabanikezeli be-Tier 1 ukudala ukutywinwa, ukudibanisa, ukuqhutyelwa kombane kunye nezisombululo ze-EMI ezinceda ukubeka imigangatho emitsha ekusebenzeni kwezixhobo.
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Ixesha lokuposa: Aug-10-2023