Ukusetshenziswa kwezinto zokushisela kanye nama-gaskets ukulungisa ama-valve

Ukusetshenziswa kwezinto zokushisela kanye nama-gaskets ukulungisa ama-valve

I-Welding isetshenziselwa kakhulu ukuvelela kwe-valve sealing surface, ukulungisa ukushisela kokulimala kokuphonsa kanye nokushisela kwesakhiwo somkhiqizo. Ukukhethwa kwezinto zokushisela kuhlobene nendlela yenqubo, i-arc welding manual, i-plasma spray welding, i-arc automatic welding, i-carbon dioxide gas shielded welding, izinto ezisetshenziswayo zihlukile. Lapha sethula kuphela indlela yokushisela evame ukusetshenziswa kakhulu - i-arc welding manual esetshenziswa ezintweni ezihlukahlukene. Izinto zokubeka uphawu ebusweni ziye zafakwa esigabeni sesibili sezinto zangaphakathi, lesi sahluko sigxile ekushiselweni kokulungisa ukubunjwa, ukushiselwa kwe-arc ye-manual ye-welding yesakhiwo yama-electrode ahlukahlukene.
Izinto zokushisela
I-Welding isetshenziselwa kakhulu ukuvelela kwe-valve sealing surface, ukulungisa ukushisela kokulimala kokuphonsa kanye nokushisela kwesakhiwo somkhiqizo. Ukukhethwa kwezinto zokushisela kuhlobene nendlela yenqubo, i-arc welding manual, i-plasma spray welding, i-arc automatic welding, i-carbon dioxide gas shielded welding, izinto ezisetshenziswayo zihlukile. Lapha sethula kuphela indlela yokushisela evame ukusetshenziswa kakhulu - i-arc welding manual esetshenziswa ezintweni ezihlukahlukene. Izinto zokubeka uphawu ebusweni ziye zafakwa esigabeni sesibili sezinto zangaphakathi, lesi sahluko sigxile ekushiselweni kokulungisa ukubunjwa, ukushiselwa kwe-arc ye-manual ye-welding yesakhiwo yama-electrode ahlukahlukene.
1 Izimfuneko zamashisela
Abashiseli bazophasisa ulwazi oluyisisekelo nokusebenza kokuhlolwa kwe-Boiler kanye ne-Pressure Vessel Welder Examination Rules eyakhiwe uMnyango Wezabasebenzi Nezabasebenzi we-People's Republic of China, futhi baphathe isitifiketi sokufaneleka ngaphambi kokwenza imisebenzi yokushisela phakathi nesikhathi sokufaneleka.
I-valve ingeyomkhumbi wokucindezela, izinga lobuchwepheshe le-welder kanye nenqubo yokushisela ithinta ngokuqondile izinga lomkhiqizo nokukhiqizwa kokuphepha, ngakho-ke kubaluleke kakhulu ezidingweni eziqinile zama-welders, ukushisela kuyinqubo ekhethekile emabhizinisini okukhiqiza ama-valve, inqubo ekhethekile kufanele ibe nezindlela ezikhethekile, kuhlanganise nabasebenzi. , izinto zokusebenza, ukuphathwa kwempahla nokulawula.
2 Izidingo zesitoreji sezinduku zokushisela
(1) Naka umswakama wemvelo ukuze uvimbele i-electrode kusuka kumswakama, umswakama ohlobene emoyeni ungaphansi kuka-60%, futhi ushiye umhlabathi nodonga ibanga elithile (cishe 30cm).
(2) ukuhlukanisa uhlobo electrode, ezibekiweko ayikwazi ukudideka.
(3) Inqubo yokupakisha yokuthutha kufanele iqaphele ukuthi ingalimazi isikhumba somuthi, ikakhulukazi i-electrode yensimbi engagqwali, i-cast iron electrode, njll.
Induku yokushisela evame ukusetshenziselwa ukuphonsa i-welding yokulungisa kanye nokushisela kwesakhiwo kwemikhiqizo yama-valve
Bheka kuThebula 1-3-1 ukuthola amamaki enduku yokushisela avame ukusetshenziswa ekulungiseni ukushisela ukulungisa nokushisela kwesakhiwo semikhiqizo yamavalvu.
Ithebula 1-3-1 Amabanga wenduku yokushisela evamile
isigaba
uphawu
imodeli
AWS
ejwayelekile
I-Carbon steel welding rod
J422
J502
E4303
E5003
I-GB/T 5117
J507
*CHE508-1
E5015
I-E5018-1
E7015
I-E7018-1
I-electrode yensimbi engagqwali
R507
A102
A132
A002
A202
A212
A022
A302
A402
I-Chromium 202
E1-5MoV-15
E0-19-10-16
E0-19-10Nb-16
E00-19-10-16
E0-18-12Mo2-16
E0-18-12MoNb-16
E00-18-12Mo2-16
E1-23-13-16
E2-26-21-16
E1-13-16
I-E502-15
E308-16
E347-16
I-E308L-16
E316-16
E318-16
I-E316L-16
E309-16
E310-16
E410-16
I-GB/T 983
Qhubeka. 1-3-1 Amamaki wenduku yokushisela evamile
I-electrode yensimbi ekwazi ukumelana nokushisa ingxubevange ephansi
R337
I-E5515-B2-VNb
R107
R307
R407
I-E5015-A1
I-E5515-B2
I-E6015-B3
I-E7015-A1
I-E8015-B2
I-E9015-B3
I-GB/T 5118
I-electrode yensimbi ebophayo ephansi
707 wena
I-E5515-C1
I-GB/T 5118
907 nxa
I-E5515-C2
I-E8015-C2
107 wena
I-E7015-G
I-electrode ye-Monel
I-R-M3NiCu7
I-ERNiCu-7
Intambo yensimbi engagqwali
I-H0Cr20Ni10Ti
I-H0Cr21Ni10
I-H0Cr19Ni12Mo2
I-H00Cr21Ni10
I-H00Cr19Ni12Mo2
I-GB/T 4241
* I-CHE 508-1 ilingana ne-Chinese electrode factory brand GB E5018-1.
1, 2, 3, 4, 1, ukugcinwa kwe-valve egcinwe isikhathi eside, ukuhlolwa okuvamile kufanele kwenziwe, ngoba ukuvuza kwendawo yokucubungula kufanele kuhlanzeke, * * * ukungcola, ukugcinwa futhi kuphele lapho i-valve yebhola kufanele ivinjwe indawo evulekile, i-valve yesango, i-valve yeglobhu, i-valve yokuhlola, iziphetho zesiteshi kufanele zivalwe futhi zivaliwe, zigcinwe kahle endaweni eyomile yasendlini nengena umoya, Ukupakisha noma ukugcinwa okuvulekile akuvunyelwe ngokuphelele.
I-2, ngaphambi kokufakwa, kuyadingeka ukuhlola ngokucophelela ukucindezela kophawu lwe-valve, kungakhathaliseki ukuthi ububanzi buhlangabezana nezidingo, ukuqeda ukukhubazeka okubangelwa inqubo yokuthutha, nokuqeda ukungcola kwezingxenye ze-valve.
3. Lapho ufaka, i-valve ingafakwa ngokuqondile epayipini ngokusho kwemodi yokuxhuma. Ngokuvamile, ingafakwa kunoma yisiphi isikhundla sepayipi, kodwa idinga ukuba kube lula ukusebenza nokulungisa. Qaphela ukuthi isiqondiso sokugeleza kwe-globe valve medium kufanele sibe phezulu ukusuka phansi kwediski eqondile, futhi i-valve yokuhlola yokuphakamisa ingafakwa kuphela ngokuvundlile.
I-4, i-valve yebhola, i-globe valve, i-valve yesango, ivuliwe kuphela noma ivaliwe ngokugcwele, ayivunyelwe ukulungisa ukugeleza, ukuze ugweme ukuguguleka kokuvala indawo, ukusheshisa ukuguga. Kukhona idivayisi yokuvala ehlanekezelwe kuvalvu yesango kanye nevalvu yeglobu yentambo engenhla, futhi isondo lesandla liqiniswa endaweni ephezulu ethi ** ukuvimbela imidiya ukuthi ingavuzi ekupakisheni.
I-5, i-valve yebhola, i-globe valve, i-valve yesango ivule futhi ivale ukusetshenziswa kwe-handwheel, ungasebenzisi izinsimbi noma amanye amathuluzi, ukuze ungalimazi i-valve. Uma isondo lesandla lizungeza ngokwewashi, livaliwe, ngaphandle kwalokho, livuliwe.
I-6, ukupakisha ama-bolts we-gland kufanele aqiniswe ngokulinganayo, akufanele acindezelwe esimweni esigwegwile, ukuze angaphazamisi ukunyakaza kwe-stem noma abangele ukuvuza.
I-7, i-valve ngesikhathi sokusebenzisa, kufanele ihlale ihlanzekile, intambo yokushayela kufanele igcotshwe njalo, itholakale iphutha, kufanele imise ngokushesha ukusebenzisa, thola imbangela yokwehluleka.