I-flange iyingxenye emise okwediski evame kakhulu kubunjiniyela bamapayipi.Iama-flangeasetshenziswa ngababili futhi ngokuhambisana nama-flange afanayo ku-valve.Ebunjiniyela bamapayipi, ama-flange asetshenziselwa ngokuyinhloko ukuxhuma amapayipi.Epayipini lapho izidingo zixhunywe khona, amadivaysi ahlukahlukene anepuleti le-flange.
Ukuqhathanisa phakathiama-flange ensimbi engagqwalifuthicarbon steel flanges:
1. I-thermal conductivity iphansi, cishe ingxenye eyodwa kwezintathu yaleyo ye-carbon steel.Ukuvimbela ukugqwala kwamehlo okubangelwa ukushisa kwekhava ye-flange, i-welding current akufanele ibe nkulu kakhulu, engaphansi kuka-20% ngaphansi kwezinduku ze-carbon steel welding.I-arc akufanele ibe yinde kakhulu, futhi ukupholisa kwe-interlayer kufanele kusheshe.Kunconywa ukusebenzisa i-welding pass encane.
2. Izinga le-electronegative liphezulu, cishe izikhathi ezi-5 kune-carbon steel.
3. I-coefficient yokunwetshwa komugqa inkulu, ngo-40% iphakeme kune-carbon steel, futhi njengoba izinga lokushisa likhuphuka, inani le-coefficient yokunwetshwa komugqa nalo likhuphuka ngokufanele.
I-Carbon steel iyingxube ye-iron carbon alloy enokuqukethwe kwekhabhoni kusuka ku-0.0218% kuya ku-2.11%.Eyaziwa nangokuthi i-carbon steel.Ngokuvamile, iqukethe nenani elincane le-silicon, i-manganese, isulfure, ne-phosphorus.Ngokuvamile, ukuphakama kwekhabhoni ku-carbon steel, kukhulu ubulukhuni namandla, kodwa ukwehla kwepulasitiki.
Uyini umehluko phakathi kwensimbi ye-low-carbon steel, medium carbon steel, ne-high carbon steel?
1. Insimbi ye-carbon ephansi iwuhlobo lwensimbi ye-carbon ene-carbon content engaphansi kuka-0.25%, okuhlanganisa iningi lensimbi evamile ye-carbon structural kanye nensimbi yekhwalithi ephezulu ye-carbon structural, iningi lazo elisetshenziselwa izingxenye zesakhiwo zobunjiniyela ezingadingi ukushisa. ukwelashwa.Abanye baphinde bathole ukwelashwa kwe-carburization noma ukushisa.
2. Insimbi ye-carbon ephakathi inezindawo ezinhle zokusebenza ezishisayo nokusika, kodwa izakhiwo zokushisela ezimbi.Amandla nokuqina kwayo kuphakeme kunensimbi enekhabhoni ephansi, kuyilapho ipulasitiki nokuqina kwayo kuphansi kunensimbi enekhabhoni ephansi.Ukugoqa okubandayo nezinye izinqubo kungasetshenziswa ngokuqondile ekucubunguleni okubandayo ngaphandle kokwelashwa kokushisa, noma umshini noma ukukhwabanisa kungenziwa ngemva kokwelashwa kokushisa.Insimbi yekhabhoni eqinile emaphakathi inezakhiwo ezinhle kakhulu ezibanzi zemishini.Ubulukhuni obukhulu obufinyelelekayo bucishe bube ngu-HRC55 (HB538), σ B ngu-600-1100MPa.Ngakho-ke, i-medium carbon steel isetshenziswa kabanzi ezinhlelweni ezihlukahlukene ezinamazinga aphakathi kwamandla.Ayisetshenziswa kabanzi njengendawo yokwakha, kodwa futhi nasekukhiqizeni izingxenye zomshini ezahlukahlukene.
3. I-carbon steel ephezulu ivame ukubizwa ngokuthi i-Tool steel, futhi okuqukethwe kwayo kwekhabhoni kungu-0.60% ~ 1.70%.Kungacinywa futhi kuncishiswe, futhi ukusebenza kwayo kwe-welding kubi.Izando, izinsimbi, njll. zonke zenziwe ngensimbi enokuqukethwe kwekhabhoni engu-0.75%.Amathuluzi okusika anjengama-drill, ompompi, nama-reamer anokuqukethwe kwekhabhoni okungu-0.90%
Isikhathi sokuthumela: Jun-08-2023
