Iimfuno zobugcisa zeumbhobho flange forgings(kubandakanywayenzekilekwayeiziqwenga ezisongiweyo).
1.Ibakala kunye neemfuno zobugcisa zeforgings(kubandakanywaiziqwenga ezibunjiweyo zazisongwa) iya kuhlangabezana neemfuno ezihambelanayo ze-JB4726-4728.
2.Uxinzelelo lwe-PN 0.25 MP 1.0 MPa carbon steel kunye ne-austenitic stainlessizixhobo zentsimbikuvumeleke ukusetyenziswa kwenqanaba Ⅰ lokubunjwa.
3.Ukongeza kula malungiselelo alandelayo, uxinzelelo lwegama le-PN 1.6 MPa ukuya kwi-6.3 MPa yokubunjwa kuya kuhambelana nenqanaba Ⅱ okanye ngaphezulu kwenqanaba Ⅱamanqanaba forgings.
4.Kwenye yezi zilandelayo kufuneka ihambelane nemfuno Ⅲ kunyeforgings: (1) uxinzelelo lwe-PN acuity 10.0 MPaiflange forging;(2) chromium-molybdenumizixhobo zentsimbingoxinzelelo lwegama PN>4.0MPa;(3) ferriticizixhobo zentsimbingoxinzelelo lwe-PN> 1.6MPa kunye nobushushu bokusebenza ≤-20 ℃.

Impunduukuwelda ngentamo, welding flat ngentamo, welding socketkwayeiflange enemisontozenziwe ngokubanzi ngokubunjwa okanyeukuqengqelekainkqubo.Xa ipleyiti yentsimbi okanye intsimbi yecandelo isetyenzisiweyo, ezi mfuno zilandelayo kufuneka zifezekiswe:
1.Ipleyiti yensimbi iya kuhlolwa nge-ultrasonic ngaphandle kwesiphene se-stratification;
2.Iya kunqunyulwa ibe yimicu ecaleni kwendlela yokuqengqeleka yentsimbi, kwaye idityaniswe ibe yindandatho ngokugoba, kwaye wenze ubuso bentsimbi bube yicylinder yeringi.iiflange ezineentamo;
3.I-weld yokungena ngokupheleleyo iya kwamkelwa kwi-butt weld yeringi;
4.I-butt weld yeringi iya kunyango lobushushu emva kwe-weld kwaye yenze i-100% ye-X-ray okanye i-ultrasonic flaw kufunyaniswe, kwaye ukufunyaniswa kwesiphene se-X-ray kuya kuhlangabezana neemfuno zeklasi II ze-JB4730 kwaye ukufunyaniswa kwesiphene se-ultrasonic kuya kuhlangabezana neklasi I. iimfuno zeJB4730.