Litlhoko tsa tekheniki bakeng sali-pipe flange forgings(ho kenyeletsoaqapalelikotoana tse tšetsoeng).
1.Litlhoko tsa kereiti le botekgeniki tsaforgings(ho kenyeletsoalikotoana tse qapiloeng le tse phuthoang) e tla fihlela litlhoko tse tsamaellanang tsa JB4726-4728.
2.Khatello ea lebitso PN 0.25 MP 1.0 MPa carbon steel le austenitic stainlesslintho tse entsoeng ka tšepee lumelletse ts'ebeliso ea boemo ba Ⅰ forgings.
3.Ho phaella ho lipehelo tse latelang, khatello ea lebitso la PN 1.6 MPa ho 6.3 MPa forgings e tla lumellana le boemo ba Ⅱ kapa ka holimo ho boemo ba Ⅱ.maemo a forgings.
4.Ho e 'ngoe ea tse latelang e lokela ho lumellana le tlhokahalo ea Ⅲ leforgings: (1) khatello ea lebitso PN acuity 10.0 MPaflange forging;(2) chromium-molybdenumlintho tse entsoeng ka tšepeka khatello ea lebitso PN> 4.0MPa;(3) ferriticlintho tse entsoeng ka tšepeka khatello ea lebitso PN> 1.6MPa le mocheso oa ho sebetsa ≤-20 ℃.

Buttho tjheseletsa ka molala, tjheseletsa e bataletseng ka molala, socket weldingleflange e khoelehangata li etsoa ka ho qhekella kapaforging rollingprocess.Ha tšepe ea tšepe kapa tšepe ea karolo e sebelisoa, litlhoko tse latelang li tlameha ho finyelloa:
1.Letlapa la tšepe le tla hlahlojoa ke ultrasonic ntle le sekoli sa stratification;
2.E tla khaoloa likotoana ka tsela e bilikang ea tšepe, 'me e kenngoe ka lesale ka ho kobeha, ebe e etsa hore bokaholimo ba tšepe bo be le moqomo oa selikalikoe.flanges ka melala;
3.Weld e kenang ka ho feletseng e tla amoheloa bakeng sa ho cheselletsa butt ea lesale;
4.The butt weld of thering e tla kengoa kalafo ea mocheso ka mor'a weld 'me e bone 100% X-ray kapa ultrasonic flaw flaw,' me tlhahlobo ea X-ray e tla kopana le litlhoko tsa sehlopha sa II sa JB4730 'me tlhahlobo ea ultrasound e tla kopana le sehlopha sa I. litlhoko tsa JB4730.