Kuwotcherera kumatanthauza zipangizo kuwotcherera pansi mikhalidwe kumatanthauza ntchito yomanga membala mogwirizana ndi zofunika kamangidwe, ndi luso kukwaniritsa zofunika za utumiki anakonzeratu.Ndi kuwotcherera zipangizo, kuwotcherera, chigawo mtundu ndi ntchito zofunika zimakhudza zinthu zinayi.
Low carbon steel kuwotcherera
Chifukwa cha carbon zili otsika mpweya zitsulo (mwachitsanzo: mpweya zitsulo chitoliro), manganese, pakachitsulo zili zochepa, choncho kawirikawiri sadzakhala ndi kuwotcherera kwambiri kuzimitsa anaumitsa minofu kapena minofu.Low mpweya zitsulo kuwotcherera mafupa plasticity ndi kulimba mtima ndi zabwino, kuwotcherera, zambiri popanda preheating, kulamulira kutentha ndi kutentha pakati pa zigawo, ntchito pambuyo kuwotcherera kutentha mankhwala musati kusintha bungwe, ndondomeko yonse sayenera kutenga miyeso ndondomeko kuwotcherera wapadera, weldability.
Kuwotcherera kwachitsulo chapakati cha carbon
Mpweya wochuluka wa 0,25% ~ 0.60% wa carbon carbon steel wapakati.Pamene misa gawo la mpweya ndi manganese zili pafupifupi 0,25% si mkulu, weldability wabwino.Ndi kuchuluka kwa mpweya wa carbon, weldability pang'onopang'ono analowa.Ngati mpweya zili za 0,45%, pamene kutengera kuwotcherera wofatsa zitsulo kuwotcherera ndondomeko ntchito kutentha bwanji zone akhoza kupanga brittle martensite, zosavuta mng'alu, kuti mapangidwe ozizira akulimbana.Pamene kuwotcherera, kuchuluka kwa zinthu m'munsi ndi kusungunuka mu kuwotcherera, kuwotcherera kuti carbon okhutira kuchuluka, kulimbikitsa matenthedwe akulimbana mu kuwotcherera, makamaka pamene okhwima kulamulira zosafunika sulfure, zambiri.Mng'alu uwu umakhala wovuta kwambiri pachibowocho pakugawika kwa kutentha mu ng'anjo yowotcherera komanso mizere yopindika kwambiri yolowera ku weld.
High carbon steel kuwotcherera
Pamene mkulu-mpweya mpweya zitsulo carbon zili wamkulu kuposa 0,60%, kuumitsa, kuwotcherera mng'alu tilinazo pambuyo chizolowezi chachikulu choncho weldability osauka, sangagwiritsidwe ntchito popanga nyumba welded.Ayenera kwambiri ambiri ntchito kupanga kuuma kapena abrasion mbali ndi zigawo zikuluzikulu, ntchito kuwotcherera makamaka kukonza kuwotcherera.Chifukwa champhamvu kwambiri yamphamvu ya carbon zitsulo makamaka mu 675MPa kapena kupitirira apo, kotero wamba elekitirodi chitsanzo E7015, E6015, akhoza kusankha E5016, E5015 elekitirodi dongosolo pamene mamembala kufunsa zambiri.Komanso, tingagwiritse ntchito chrome-nickel austenitic zitsulo maelekitirodi kuti kuwotcherera.Chifukwa cha zigawo zapamwamba za carbon zitsulo kuti zipeze kuuma kwakukulu ndi kukana kuvala, zinthuzo zimayikidwa pamoto wotentha, kuwotcherera kuyenera kutsogoleredwe ndi annealing kuti atenthedwe.Ziyenera kuchitidwa pamaso kuwotcherera preheat, kutentha preheat zambiri pamwamba 250 ~ 350 ℃, ndondomeko kuwotcherera sayenera kukhala m'munsi kuposa kutentha akugwira wosanjikiza pakati pa kutentha preheating.Kuwotcherera pambuyo kuwotcherera kumafuna kutentha pang'onopang'ono kuzirala ndipo nthawi yomweyo mu ng'anjo ya 650 ℃ kuti muchepetse kupsinjika kwa kutentha.
Nthawi yotumiza: Feb-17-2023