imfuneko yokusebenza
(1) Amandla aphezulu: ngokuvamile, amandla ayo okukhiqiza angaphezulu kuka-300MPa.
(2) Ukuqina okuphezulu: ubude obudingekayo bungu-15%~20%, futhi ukuqina komthelela ekamelweni lokushisa kungaphezulu kuka-600kJ/m~800kJ/m.Ezingxenyeni ezinkulu ezishiselwe, ukuqina kokuphuka okuphezulu kuyadingeka.
(3) Ukusebenza okuhle kwe-welding kanye nokusebenza okubandayo kokwakha.
(4) Izinga lokushisa eliphansi elibandayo le-brittle transition.
(5) Ukumelana nokugqwala okuhle.
3. Izici zokubunjwa kwepayipi likathayela
(1) Ikhabhoni ephansi: ngenxa yezidingo eziphezulu zokuqina, ukushisela kanye nokusebenza okubandayo kokwakheka, okuqukethwe kwekhabhoni akumele kudlule u-0.20%.
(2) Isici sengxube ye-manganese siyengezwa.
(3) Ukwengezwa kwe-niobium, i-titanium noma i-vanadium: inani elincane le-niobium, i-titanium noma i-vanadium lakha i-carbide enhle noma i-carbonitride ensimbi, ewusizo ekutholeni okusanhlamvu okuhle kwe-ferrite nokuthuthukisa amandla nokuqina kwensimbi.Ngaphezu kwalokho, ukwengeza inani elincane lethusi (≤ 0.4%) kanye ne-phosphorus (cishe i-0.1%) kungathuthukisa ukumelana nokugqwala.Ukwengeza inani elincane lezinto zomhlaba ezingavamile kungasusa isibabule negesi, kuhlanze insimbi, futhi kuthuthukise ukuqina nokusebenza kwenqubo.
Isikhathi sokuthumela: Dec-26-2022