Igasket yinxalenye emileyo yokutywina esombulula “ukubaleka, ukukhupha, ukuvuza, kunye nokuvuza”.Kuba zininzi izinto ezimile zokutywina, ngokwezi fom zokutywina ezimileyo, iigaskets ezisicaba, ii-elliptical gaskets, iilens gaskets, cone gaskets, liquid gaskets, O-rings, kunye neegaskets ezahlukeneyo zokuzitywina ziye zavela ngokufanelekileyo.Ufakelo oluchanekileyo lwe-gasket kufuneka luqhutywe xa isakhiwo sokudibanisa i-flange okanye isakhiwo sokudibanisa i-threaded, indawo yokutywina e-static kunye ne-gasket ngokungathandabuzekiyo ihlolwe, kunye nezinye iindawo ze-valve zichanekile.
1. Ngaphambi kokufaka i-gasket, sebenzisa uluhlu lwe-graphite powder okanye i-graphite powder ehlanganiswe neoli (okanye amanzi) kwindawo yokutywina, i-gasket, intambo kunye ne-bolt kunye ne-nut ejikelezayo.I-gasket kunye negraphite kufuneka zigcinwe zicocekile.
2. I-gasket kufuneka ifakwe kwindawo yokutywina ukuba igxininiswe, ichanekileyo, ingaphambuki, ingadluli kwi-valve cavity okanye iphumle ehlombe.I-diameter yangaphakathi ye-gasket kufuneka ibe nkulu kunomngxuma wangaphakathi wokutywina, kwaye ububanzi bangaphandle kufuneka bube buncinci kunobubanzi obungaphandle kwendawo yokutywinwa, ukwenzela ukuba kuqinisekiswe ukuba i-gasket ixinzelelwe ngokulinganayo.
3. Isiqwenga esinye kuphela se-gasket sivunyelwe ukufaka, kwaye akuvumelekanga ukufaka ezimbini okanye ngaphezulu phakathi kweendawo zokutywina ukuphelisa ukungabikho kwesithuba phakathi kweendawo ezimbini zokutywinwa.
4. I-oval gasket kufuneka ivalwe ukwenzela ukuba iindandatho zangaphakathi nangaphandle ze-gasket zidibene, kwaye iziphelo ezimbini ze-gasket akufanele zidibanise nezantsi kwe-groove.
5. Ukufakwa kwe-O-rings, ngaphandle kokuba i-ring kunye ne-groove kufuneka ihlangabezane neemfuno zokuyila, inani lokunyanzeliswa kufuneka lifaneleke.I-flatness yentsimbi ye-O-rings evulekileyo ngokubanzi i-10% ukuya kwi-40%.Izinga lokuguqulwa koxinzelelo lwe-rubber O-rings yi-cylindrical.Ukutywinwa kwe-static kwindawo ephezulu yi-13% -20%;indawo yokutywina emileyo yi-15% -25%.Uxinzelelo oluphezulu lwangaphakathi, i-deformation deformation kufuneka ibe phezulu xa usebenzisa i-vacuum.Ngaphantsi kwesiseko sokuqinisekisa ukutywinwa, i-compression deformation rate encinci, ingcono, enokwandisa ubomi be-O-ring.
6. I-valve kufuneka ibe kwindawo evulekileyo phambi kokuba i-gasket ifakwe kwikhava, ukuze ingachaphazeli ukufakwa kunye nokonakalisa i-valve.Xa uvala isigqubuthelo, lungelelanisa isikhundla, kwaye ungaqhagamshelani ne-gasket ngokutyhala okanye ukutsala ukuphepha ukufuduka kunye nemikrwelo ye-gasket.Xa ulungelelanisa indawo yesigqubuthelo, kufuneka uphakamise isigqubuthelo ngokuthe chu, uze ulungelelanise ngobunono.
7. Ukufakwa kwee-bolted okanye i-threaded gaskets kufuneka ibe yinto yokuba i-gaskets ibe kwindawo ethe tye (i-gasket cover for threaded connections akufanele isebenzise izitshixo zombhobho ukuba kukho indawo yokuqhawula).I-screw tightening kufuneka ithathe i-symmetrical, enye, kunye nendlela yokusebenza, kwaye iibholithi kufuneka zibotshwe ngokupheleleyo, zicoceke kwaye zingakhululeki.
8. Ngaphambi kokuba i-gasket ixinzelelwe, uxinzelelo, ubushushu, iipropathi ze-medium, kunye neempawu zezinto ze-gasket kufuneka ziqondwe ngokucacileyo ukumisela amandla okuqinisa kwangaphambili.Amandla okuqinisa kwangaphambili kufuneka ancitshiswe ngokusemandleni phantsi kwemeko yokuba uvavanyo loxinzelelo aluvuzi (amandla amaninzi angaphambili aqiniswe ngokukhawuleza aya kulimaza i-gasket kwaye enze i-gasket ilahlekelwe ukuqina kwayo).
9. Emva kokuba i-gasket igxininiswe, kufuneka kuqinisekiswe ukuba kukho i-gap yangaphambili yokuqinisa isiqwenga sokudibanisa, ukwenzela ukuba kubekho indawo yokuqinisa kwangaphambili xa i-gasket ivuza.
10. Xa usebenza kumaqondo okushisa aphezulu, iibholiti ziya kuba neqondo lokushisa eliphezulu, ukuphumla koxinzelelo, kunye nokwandiswa kwe-deformation, okukhokelela ekuvuzeni kwi-gasket kunye nokufuna ukuqiniswa kwe-thermal.Ngokuchasene noko, phantsi kweemeko zokushisa eziphantsi, iibholiti ziya kuncipha kwaye zifuna ukukhululeka ngokubanda.Ukuqiniswa okushushu kuxinzelelo, ukukhulula okubandayo kukunciphisa uxinzelelo, ukuqiniswa okushushu kunye nokukhulula okubandayo kufuneka kwenziwe emva kokugcina ubushushu bokusebenza iiyure ezingama-24.
11. Xa i-gasket ye-liquid isetyenziselwa indawo yokutywina, indawo yokutywina kufuneka icocwe okanye iphathwe.Indawo yokutywina ecwecwe kufuneka ihambelane emva kokugaya, kwaye i-adhesive kufuneka isetyenziswe ngokulinganayo (i-adhesive kufuneka ihambelane neemeko zokusebenza), kwaye umoya kufuneka ungabandakanyi kangangoko kunokwenzeka.Umaleko wokuncamathelisa ngokubanzi 0.1 ~ 0.2mm.Umsonto ojijwayo uyafana nomphezulu wokutywina osicaba.Yomibini imiphezulu yokudibanisa kufuneka igqunywe.Xa i-screw in, kufuneka ibe kwindawo ethe nkqo ukuququzelela ukukhutshwa komoya.Iglu kufuneka ingabi kakhulu ukuphepha ukuchitheka kunye nokungcolisa ezinye iivalve.
12. Xa usebenzisa i-PTFE ifilimu tape ukutywinwa kwentambo, indawo yokuqala yefilimu kufuneka yolulwe incinci kwaye idityaniswe kumphezulu wentambo;emva koko i-tape engaphezulu kwinqanaba lokuqala kufuneka isuswe ukwenza ifilimu inamathele kumsonto ibe yi-wedge shape.Ngokuxhomekeke kwi-gap yentambo, ngokuqhelekileyo i-1 ukuya ku-3 amaxesha.Ulwalathiso olujikelezayo kufuneka lulandele ulwalathiso lwe-screwing, kwaye indawo yokugqibela kufuneka ihambelane nendawo yokuqala;ukutsala ngokukhawuleza ifilimu ibe yimilo ye-wedge, ukwenzela ukuba ubukhulu befilimu buboshwe ngokulinganayo.Ngaphambi kokungena, cinezela ifilimu ekupheleni kwentambo ukuze ifilimu ifakwe kwintambo yangaphakathi kunye ne-screw;i-screwing kufuneka icothe kwaye amandla kufuneka alingane;musa ukuhambisa kwakhona emva kokuqinisa, kwaye ugweme ukujika, ngaphandle koko kuya kuba lula ukuvuza.
Ixesha lokuposa: Jan-14-2021