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Imiba emininzi efuna ingqwalasela ekufakweni kweegaskets

Igasket yinxalenye emileyo yokutywina esombulula “ukubaleka, ukukhupha, ukuvuza, kunye nokuvuza”.Kuba zininzi izinto ezimile zokutywina, ngokwezi fom zokutywina ezimileyo, iigaskets ezisicaba, ii-elliptical gaskets, ii-lens gaskets, ii-cone gaskets, iigaskets ezingamanzi, ii-O-rings, kunye nee-gaskets ezahlukeneyo zokuzitywina ziye zavela ngokufanelekileyo.Ufakelo oluchanekileyo lwe-gasket kufuneka luqhutywe xa i-flange yokudibanisa i-flange okanye i-threaded connection structure, 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 ukuba sifake, kwaye akuvumelekanga ukufaka iinqununu ezimbini okanye ngaphezulu phakathi kweendawo zokutywina ukuphelisa ukungabikho kwesithuba phakathi kweendawo ezimbini zokutywinwa.

4. I-oval gasket kufuneka ivalwe ukwenzela ukuba amakhonkco angaphakathi nangaphandle e-gasket adibane, kwaye iziphelo ezimbini ze-gasket akufanele zidibanise nezantsi kwe-groove.

5. Ukufakwa kwee-O-rings, ngaphandle kokuba i-ring kunye ne-groove kufuneka ihlangabezane neemfuno zokuyila, ubungakanani bokunyanzeliswa kufuneka bufaneleke.I-flatness yentsimbi ye-O-rings evulekileyo ihlala 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-compress 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 ikhava ngokukhawuleza, kwaye ulungelelanise ngobumnene.

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, iipropati ze-medium, kunye neempawu ze-gasket eziphathekayo kufuneka ziqondwe ngokucacileyo ukumisela amandla okuqinisa kwangaphambili.Amandla okuqinisa kwangaphambili kufuneka ancitshiswe kangangoko kunokwenzeka 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 nokunyuka kwe-deformation, okukhokelela ekuvuzeni kwi-gasket kwaye kufuna ukuqina kwe-thermal.Ngokuchasene noko, phantsi kweemeko zokushisa eziphantsi, iibholiti ziya kuncipha kwaye zifuna ukubanda zikhulule.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;ke i-tape engaphezulu kwindawo yokuqala kufuneka isuswe ukwenza ifilimu inamathele kumsonto ibe yimilo ye-wedge.Ngokuxhomekeke kwi-gap yentambo, ngokuqhelekileyo i-1 ukuya ku-3 amaxesha.Ulwalathiso olujikelezayo lufanele 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