Malinga ndi machitidwe amakampani pamakina olemera, makina osindikizira aulere omwe amapangidwa pogwiritsa ntchito makina osindikizira a hydraulic omwe amatha kupanga matani opitilira 1000 amatha kutchedwa kufota kwakukulu. Kutengera mphamvu yopangira makina osindikizira a hydraulic for forging forging, izi zimafanana ndi ma shaft forging omwe amalemera matani 5 ndi ma disk forging omwe amalemera matani awiri.
Makhalidwe akuluakulu komanso ofunikira a forgings akulu ndi makulidwe awo akulu ndi kulemera kwake. Mwachitsanzo, kukula kwa 600MW turbine turbine generator rotor forging ndi φ1280mm×16310mm, kulemera matani 111.5. Kukula kwa 2200-2400MW jenereta ya jenereta yopangira nthunzi ndi φ1808mm×16880mm, yolemera matani 247.
Chifukwa cha kukula kwake ndi kulemera kwake, zokopa zazikulu ziyenera kupangidwa mwachindunji kuchokera kuzitsulo zazikulu zachitsulo. Zimadziwika bwino kuti zitsulo zazikulu zachitsulo nthawi zambiri zimakhala ndi nkhani zazikulu monga kulekanitsa, porosity, shrinkage, inclusions non-metallic inclusions, ndi mitundu yosiyanasiyana ya structural non-uniformity. Amakondanso kukhala ndi mpweya wambiri, ndipo zolakwikazi zimakhala zovuta kuzichotsa pakapita nthawi. Zotsatira zake, mitundu yayikulu yamankhwala osafanana, zolakwika zamapangidwe osiyanasiyana, komanso kuchuluka kwamafuta owopsa agasi nthawi zambiri amapezeka m'mafakitale akulu. Izi zimapangitsa njira yochizira kutentha kwa ma forgings akulu kukhala ovuta, kuwononga nthawi, komanso okwera mtengo. Choncho, kusamala kuyenera kuperekedwa panthawi ya chithandizo cha kutentha.
Komanso, chifukwa cha kukula kwawo kwakukulu ndi kulemera kwake, ma forgings akuluakulu amakhala ndi kutentha kwakukulu, zomwe zimapangitsa kuti zikhale zosatheka kukwaniritsa kutentha kwakukulu ndi kuziziritsa panthawi yopangira kutentha. Choncho, kwa forgings zazikulu zomwe zimafuna kusintha kwakukulu mkati mwa kutenthetsa kapena kuzimitsa kuti zikwaniritse zofunikira zogwirira ntchito komanso zamtundu wapamwamba, zokhazikika kwambiri za supercooled austenite ndi zitsulo zowuma kwambiri ziyenera kugwiritsidwa ntchito. Zitsanzo zikuphatikizapo Ni-Cr-Mo, Ni-Mo-V, ndi Ni-Cr-Mo-V mndandanda wazitsulo. Komabe, zitsulo zokhala ndi kukhazikika kwakukulu kwa supercooled austenite ndizosavuta kutengera cholowa, zomwe zimapangitsa kuti pakhale kukula kolimba komanso kosafanana kwambewu muzopangira zitsulo za aloyi. Kuti athetse vutoli, njira zapadera komanso zovuta zothandizira kutentha zimafunika nthawi zambiri.
Ngati mukufuna zambiri za WELONG forgings za turbine ndi jenereta, chonde omasuka kulumikizanani
Nthawi yotumiza: Jan-23-2024
