Sisiza umhlaba okhulayo kusukela ngo-1991

Kunezinto eziningana ezidinga ukunakwa ekufakweni kwama-gaskets

I-gasket yingxenye yokuvala uphawu emile exazulula "ukugijima, ukukhipha, ukuconsa nokuvuza". Njengoba kunezakhiwo eziningi zokubekwa uphawu kwe-static, ngokusho kwalezi zinhlobo zokubeka uphawu kwe-static, ama-gaskets ayizicaba, ama-gaskets ama-elliptical, ama-lens gaskets, ama-gasket wesigaxa, ama-gaskets amanzi, ama-O-rings, nama-gaskets wokuzibopha ahlukahlukene avele ngokufanele. Ukufakwa okulungile kwe-gasket kufanele kwenziwe lapho isakhiwo sokuxhuma i-flange noma isakhiwo sokuxhuma esinezintambo, indawo yokumiswa kwe-static kanye ne-gasket ngokungangabazeki kuhlolwe, kanti ezinye izingxenye ze-valve aziphelele.

1. Ngaphambi kokufaka i-gasket, gcoba ungqimba we-graphite powder noma i-graphite powder ehlanganiswe namafutha (noma amanzi) endaweni yokubekwa uphawu, i-gasket, intambo nebhawodi nezingxenye ezijikelezayo zamantongomane. I-gasket ne-graphite kufanele igcinwe ihlanzekile.

2. I-gasket kufanele ifakwe endaweni yokubekwa uphawu ukuze igxile, ilungile, ingaphambukiswa, inganwebeki emgodini we-valve noma iphumule ehlombe. Ububanzi obungaphakathi be-gasket kufanele bube bukhulu kunembobo yangaphakathi yendawo yokufaka uphawu, futhi ububanzi obungaphandle bube bube bincane kancane kunobubanzi obungaphandle bendawo yokufaka uphawu, ukuze kuqinisekiswe ukuthi i-gasket icindezelwe ngokulinganayo.

3. Kunye kuphela ucezu lwegasket oluvunyelwe ukufaka, futhi akuvumelekile ukufaka izingcezu ezimbili noma ngaphezulu phakathi kwezindawo zokubekwa uphawu ukuqeda ukuntuleka kwegebe phakathi kwalezi zindawo ezimbili zokuvala.

4. I-gasket e-oval kufanele ivalwe ukuze izindandatho zangaphakathi nezangaphandle ze-gasket zithintane, futhi izinhlangothi zombili ze-gasket akufanele zixhumane nezansi komsele.

5. Ngokufakwa kwama-O-rings, ngaphandle kokuthi indandatho ne-groove kufanele ihlangabezane nezidingo zomklamo, inani lokucindezelwa kufanele lifanele. Ubucayi bensimbi engenalutho ama-O-rings ngokuvamile ayi-10% kuye kuma-40%. Izinga lokucindezelwa kwe-raber O-rings liyindilinga. Ukufakwa uphawu kwe-static engxenyeni engenhla kungu-13% -20%; ukumiswa kokumiswa okungama-static kungu-15% -25%. Ekucindezelweni okuphezulu kwangaphakathi, ukucindezelwa kokucindezela kufanele kube ngaphezulu lapho usebenzisa i-vacuum. Ngaphansi kwesisekelo sokuqinisekisa ukubekwa uphawu, kuncane izinga lokucindezelwa kokuncipha, okungcono, okungakhulisa impilo ye-O-ring.

6. I-valve kufanele ibe sesikhundleni esivulekile ngaphambi kokuba i-gasket ibekwe esembozweni, ukuze ingathinti ukufakwa futhi ilimaze i-valve. Lapho uvala ikhava, qondanisa indawo, futhi ungathinti i-gasket ngokucindezela noma ngokudonsa ukugwema ukufuduka nokuklwebheka kwegasket. Lapho ulungisa ukuma kwekhava, kufanele uphakamise ikhava kancane, bese uyiqondanisa kahle.

7. Ukufakwa kwama-gaskets aboshiwe noma afakwe intambo kufanele kube njengokuthi ama-gaskets asendaweni evundlile (ikhava ye-gasket yokuxhuma okuhlanganisiwe akufanele isebenzise ama-wrenches wepayipi uma kunesikhala sokudonsa). Ukuqiniswa kwesikulufa kufanele kuhambisane nendlela ehambisanayo, eguqukayo, kanye nokusebenza, futhi amabhawodi kufanele aboshwe ngokuphelele, acocekile futhi angaxegi.

8. Ngaphambi kokuba i-gasket icindezelwe, ingcindezi, izinga lokushisa, izakhiwo zento emaphakathi, kanye nezinto ezibonakalayo ze-gasket kufanele kuqondwe ngokucacile ukuthola amandla wangaphambi kokuqina. Amandla okuqinisa ngaphambi kwesikhathi kufanele anciphiswe ngangokunokwenzeka ngaphansi kwesimo sokuthi ukuhlolwa kwengcindezi akuvuzi (amandla okuqinisa ngokweqile ngokweqile azolimaza i-gasket kalula futhi enze i-gasket ilahlekelwe ukuqina kwayo).

9. Ngemuva kokuthi i-gasket iqinisiwe, kufanele kuqinisekiswe ukuthi kukhona igebe lokuqinisa kusengaphambili locezu lokuxhuma, ukuze kube khona indawo yokuqinisa ngaphambili lapho i-gasket ivuza.

10. Uma kusebenza emazingeni okushisa aphakeme, amabhawodi azobhekana nokushisa okuphezulu, ukukhululeka kwengcindezi, nokwanda kokukhubazeka, okuholele ekuvuza ku-gasket futhi kudinge ukuqiniswa okushisayo. Ngokuphambene nalokho, ngaphansi kwezimo zokushisa okuphansi, amabhawodi azoncipha futhi adinga ukukhuluphaliswa amakhaza. Ukuqina okushisayo ukucindezela, ukuxegisa okubandayo ukukhululeka kwengcindezi, ukuqina okushisayo nokuxegisa okubandayo kufanele kwenziwe ngemuva kokugcina izinga lokusebenza lisebenza amahora angama-24.

11. Lapho i-gasket ewuketshezi isetshenziselwa indawo yokufaka uphawu, indawo yokufaka uphawu kufanele ihlanzwe noma ilashwe ngaphezulu. Ubuso bokubekwa uphawu obuyisicaba kufanele buhambisane ngemuva kokugaya, futhi okunamathiselwe kufanele kusetshenziswe ngokulinganayo (i-adhesive kufanele ihambisane nezimo zokusebenza), futhi nomoya kufanele ukhishwe ngangokunokwenzeka. Isendlalelo sokunamathela ngokuvamile si-0.1 ~ 0.2mm. Intambo yesikulufu iyafana nendawo yokubekwa eyisicaba. Zombili lezi zindawo zokuxhumana kumele zigaqwe. Lapho ugoqa ngaphakathi, kufanele kube sesimweni esime mpo ukuze kusize ukukhishwa komoya. I-glue akufanele ibe yimbi kakhulu ukugwema ukuchitheka nokungcoliswa kwamanye ama-valve.

12. Uma usebenzisa itheyiphu yefilimu ye-PTFE yokufaka uphawu ngentambo, indawo yokuqala yefilimu kufanele yelulwe ibe mncane futhi inamathele ebusweni bomucu; khona-ke iteyipu eyeqile ekuqaleni kufanele isuswe ukwenza ifilimu inamathele entanjeni ibe sesigaqweni. Ngokuya ngegebe lentambo, livamise ukulinywa izikhathi ezi-1 kuye kwezi-3. Ukuqondisa okugoqayo kufanele kulandele ukuqondiswa kwe-screwing, futhi iphuzu lokugcina kufanele liqondane nendawo yokuqala; idonse ifilimu kancane kancane ibe sesimweni somugqa, ukuze ukushuba kwefilimu kulimale ngokulingana. Ngaphambi kokungena ngaphakathi, cindezela ifilimu ekugcineni kwentambo ukuze ifilimu ikwazi ukusikwa ngentambo yangaphakathi kanye nesikulufu; isikulufu kufanele sihambe kancane namandla kufanele alingane; unganyakazi futhi ngemuva kokuqinisa, futhi ugweme ukujika, ngaphandle kwalokho kuzoba lula ukuvuza.


Isikhathi Iposi: Jan-14-2021