I-flange licandelo le-disc elimilisekileyo elixhaphake kakhulu kubunjineli bemibhobho.Iiiflangezisetyenziswa ngababini kwaye ngokudibeneyo kunye neeflange ezihambelanayo kwivalve.Kwimibhobho yobunjineli, iiflange zisetyenziselwa ukudibanisa imibhobho.Kwimibhobho apho iimfuno zixhunyiwe, izixhobo ezahlukeneyo zineplate yeflange.
Ukuthelekisa phakathiiiflange zensimbi ezingenasicikwayecarbon steel flanges:
1. I-thermal conductivity iphantsi, malunga nesinye kwisithathu se-carbon steel.Ukuthintela ukubola kwamehlo okubangelwa ukufudumeza kwe-flange cover, i-welding current ayifanele ibe nkulu kakhulu, malunga ne-20% ngaphantsi kwee-carbon steel welding rods.I-arc akufanele ibe yinde kakhulu, kwaye ukupholisa kwe-interlayer kufuneka kube ngokukhawuleza.Kucetyiswa ukuba usebenzise i-welding pass encinci.
2. Izinga le-electronegative liphezulu, malunga namaxesha ama-5 e-carbon steel.
3. I-coefficient yokwandiswa komgca inkulu, i-40% iphezulu kuneyekhabhoni yensimbi, kwaye njengoko izinga lokushisa linyuka, ixabiso le-coefficient yokwandiswa komgca nalo landa ngokufanelekileyo.
I-Carbon steel yintsimbi ye-carbon alloy kunye nomxholo wekhabhoni ukusuka kwi-0.0218% ukuya kwi-2.11%.Ikwabizwa ngokuba yi-carbon steel.Ngokuqhelekileyo, iqulethe ixabiso elincinci le-silicon, i-manganese, isulfure kunye ne-phosphorus.Ngokuqhelekileyo, ukuphakama kwekhabhoni kwintsimbi yekhabhoni, ubukhulu bobunzima kunye namandla, kodwa iplastiki iphantsi.
Nguwuphi umahluko phakathi kwentsimbi yekhabhoni ephantsi, intsimbi yekhabhoni ephakathi, kunye nentsimbi ephezulu yekhabhoni?
1. Intsimbi yekhabhoni ephantsi luhlobo lwentsimbi yekhabhoni enomxholo wekhabhoni ongaphantsi kwe-0.25%, kubandakanywa uninzi lwentsimbi eqhelekileyo ye-carbon structural kunye nentsimbi ekumgangatho ophezulu wekhabhoni yesakhiwo, uninzi lwazo lusetyenziselwa amacandelo obunjineli obungadingi bushushu. unyango.Abanye baye bafumana unyango lwe-carburization okanye ubushushu.
2. Intsimbi yekhabhoni ephakathi ineempawu ezilungileyo zokusebenza ezishushu kunye nokusika, kodwa iipropati ze-welding ezimbi.Amandla kunye nokuqina kwayo kuphezulu kunentsimbi ephantsi kwekhabhoni, ngelixa iplastiki kunye nokuqina kwayo kuphantsi kunentsimbi ephantsi kwekhabhoni.Ukuqengqeleka okubandayo kunye nezinye iinkqubo zingasetyenziselwa ngokuthe ngqo ukucwangciswa okubandayo ngaphandle konyango lobushushu, okanye ukucwangciswa kwe-machining okanye ukubunjwa kunokwenziwa emva konyango lobushushu.Intsimbi yekhabhoni eqinileyo ephakathi ineempawu ezibalaseleyo zoomatshini.Obona bunzima bufikelelekayo bumalunga ne-HRC55 (HB538), σ B yi-600-1100MPa.Ke ngoko, intsimbi yekhabhoni ephakathi isetyenziswa ngokubanzi kwizicelo ezahlukeneyo ezinamanqanaba aphakathi amandla.Ayisetyenziswa nje ngokubanzi njengesixhobo sokwakha, kodwa nakwimveliso yamacandelo ahlukeneyo omatshini.
3. Insimbi ephezulu yekhabhoni idla ngokubizwa ngokuba yi-Tool steel, kwaye umxholo wayo wekhabhoni ngu-0.60% ~ 1.70%.Iyakwazi ukucima kwaye iyancipha, kwaye ukusebenza kwayo kwe-welding kubi.Izando, i-crowbars, njl. Zonke zenziwe ngentsimbi enomxholo wekhabhoni we-0.75%.Izixhobo zokusika ezifana ne-drills, iitephu, kunye ne-reamers zinomxholo wekhabhoni we-0.90%
Ixesha lokuposa: Jun-08-2023
