Mafotokozedwe aukadaulo opangira shaft yayikulu ya jenereta ya turbine yamphepo

1. Kusungunula

Chitsulo chachikulu cha shaft chiyenera kusungunuka pogwiritsa ntchito ng'anjo yamagetsi, ndikuyenga kunja kwa ng'anjo ndi vacuum degassing.

2.Kupanga

Mtsinje waukulu uyenera kupangidwa mwachindunji kuchokera kuzitsulo zachitsulo. Kuyanjanitsa pakati pa mzere wa shaft waukulu ndi mzere wapakati wa ingot uyenera kusungidwa momwe zingathere. Ndalama zokwanira zothandizira ziyenera kuperekedwa kumapeto onse a ingot kuonetsetsa kuti shaft yaikulu ilibe mabowo ochepetsera, kulekanitsa kwakukulu, kapena zolakwika zina zazikulu. Kupanga kwa shaft yayikulu kuyenera kuchitidwa pazida zopangira zokhala ndi mphamvu zokwanira, ndipo chiŵerengero cha forging chikuyenera kukhala chachikulu kuposa 3.5 kuti zitsimikizire kuti zida zonse zimapangidwira komanso zofananira.

3. Chithandizo cha kutentha Pambuyo popanga, shaft yaikulu iyenera kuchitidwa ndi mankhwala ochizira kutentha kuti apititse patsogolo mapangidwe ake ndi machinability. Kuwotcherera tsinde lalikulu sikuloledwa panthawi yokonza ndi kupanga.

4.Chemical kapangidwe

Woperekayo ayenera kusanthula kusungunuka kwa gulu lililonse lazitsulo zamadzimadzi, ndipo zotsatira zake ziyenera kutsata malamulo oyenera. Zomwe zimafunikira pa haidrojeni, oxygen, ndi nayitrogeni (gawo lalikulu) muzitsulo ndi izi: hydrogen zomwe sizidutsa 2.0X10-6, mpweya wosapitirira 3.0X10-5, ndi nayitrogeni osapitirira 1.0X10-4. Pakakhala zofunikira zapadera kuchokera kwa wogula, wogulitsa amayenera kusanthula zomaliza za shaft yayikulu, ndipo zofunikira zenizeni ziyenera kufotokozedwa mu mgwirizano kapena dongosolo. Kupatuka mkati mwa malire ovomerezeka pakuwunika kwazinthu zomalizidwa kumaloledwa ngati kufotokozeredwa ndi malamulo oyenera.

5.Mechanical katundu

Pokhapokha ngati tafotokozedwa mwanjira ina ndi wogwiritsa ntchito, makina amakina a shaft yayikulu ayenera kukwaniritsa zofunikira. Kutentha kwa Charpy impact test kwa 42CrMoA main shaft ndi -30°C, pomwe kwa 34CrNiMoA main shaft, ndi -40°C. Mayamwidwe a mphamvu ya Charpy akuyenera kutsimikiziridwa kutengera masamu a zitsanzo zitatu, kulola kuti chitsanzo chimodzi chikhale ndi zotsatira zoyesa zotsika kuposa mtengo womwe watchulidwa, koma osachepera 70% ya mtengo womwe watchulidwa.

6.Kuvuta

Kufanana kwa kuuma kuyenera kuyang'aniridwa pambuyo pa chithandizo cha kutentha kwa shaft yayikulu. Kusiyana kwa kuuma pamwamba pa tsinde lalikulu lomwelo sikuyenera kupitirira 30HBW.

7.Kuyesa kosawononga Zofunikira Zonse

Mtsinje waukulu suyenera kukhala ndi zolakwika monga ming'alu, mawanga oyera, mabowo ochepetsera, kupukutira, kulekanitsa kwakukulu, kapena kudzikundikira kwakukulu kwa zinthu zopanda zitsulo zomwe zimakhudza ntchito yake ndi khalidwe lapamwamba. Pazitsulo zazikulu zokhala ndi mabowo apakati, mkati mwa dzenjelo liyenera kuyang'aniridwa, lomwe liyenera kukhala loyera komanso lopanda banga, kutentha, dzimbiri, zidutswa za zida, zipsera, zokopa, kapena mizere yozungulira. Kusintha kosalala kuyenera kukhala pakati pa ma diameter osiyanasiyana popanda ngodya zakuthwa kapena m'mphepete. Pambuyo quenching ndi tempering kutentha mankhwala ndi akhakula kutembenukira padziko, waukulu kutsinde ayenera kukumana 100% akupanga cholakwa kuzindikira. Pambuyo pokonza mwatsatanetsatane pamwamba pa tsinde lalikulu, kuyang'ana kwa tinthu ta maginito kuyenera kuchitidwa pamtunda wonse wakunja ndi nkhope zonse ziwiri.

8.Kukula kwambewu

Kukula kwapakati pa tsinde lalikulu pambuyo pozimitsa ndi kutentha kuyenera kukhala kwakukulu kuposa kapena kofanana ndi magiredi 6.0.