Nkhaniyi ikufotokoza zovuta ndi zovuta za chikhalidweflangeforging ndondomeko, ndi kuchititsa phunziro mozama pa ndondomeko ulamuliro, kupanga njira, ndondomeko kukhazikitsa, kupeka kuyendera ndi pambuyo forging kutentha mankhwala a flange forgings osakaniza milandu yeniyeni. Nkhaniyi ikupereka dongosolo lokonzekera bwino la flange forging ndikuwunika mapindu a dongosololi. Nkhaniyi ili ndi phindu linalake.

The zovuta ndi mavuto chikhalidwe flange forging ndondomeko

Kwa mabizinesi ambiri opangira zida zopangira, cholinga chachikulu pakupanga ma flange ndikugulitsa ndi kukonza zida zopangira, pomwe njira zotulutsira zinthu zopangira sizimanyalanyazidwa. Malinga ndi kafukufukuyu, mafakitale ambiri nthawi zambiri amagwiritsa ntchito makina ocheka akagwiritsidwa ntchito, ndipo ambiri amagwiritsa ntchito macheka a semi-automatic komanso automatic band macheka. Chodabwitsa ichi osati kwambiri amachepetsa dzuwa la zinthu m'munsi, komanso ali ndi vuto lalikulu danga ntchito ndi kuona kudula madzimadzi kuipitsa chodabwitsa. Mu chikhalidwe flange forging ndondomeko nthawi zambiri ntchito ochiritsira lotseguka kufa forging ndondomeko, ndi forging kulondola ndondomeko ndi otsika, kuvala ndi kung'ambika kufa ndi lalikulu, sachedwa moyo otsika forgings ndi mndandanda wa zinthu zoipa monga. monga kufa molakwika.

Kukhathamiritsa kwa ma flange forgings

KUGWIRITSA NTCHITO KULAMULIRA

(1) Kuwongolera mawonekedwe a bungwe. Flange forging nthawi zambiri imakhala chitsulo chosapanga dzimbiri cha martensitic ndi chitsulo chosapanga dzimbiri cha austenitic ngati zida zopangira, pepalali linasankha 1Cr18Ni9Ti austenitic chitsulo chosapanga dzimbiri chopangira flange. Chitsulo chosapanga dzimbirichi kulibe kusintha kwa isotropic heterocrystalline, ngati kutenthedwa mpaka pafupifupi 1000 ℃, ndizotheka kupeza bungwe lofanana la austenitic. Pambuyo pake, ngati chitsulo chosapanga dzimbiri chotenthedwa chimakhazikika mwachangu, ndiye kuti bungwe la austenitic lomwe limapezeka limatha kusungidwa kutentha. Ngati bungwe likuzizira pang'onopang'ono, ndiye kuti n'zosavuta kuwoneka gawo la alpha, zomwe zimapangitsa kuti kutentha kwa pulasitiki zitsulo zosapanga dzimbiri kumachepetsedwa kwambiri. Chitsulo chosapanga dzimbiri ndi chifukwa chofunikira cha kuwonongeka kwa dzimbiri intergranular, chodabwitsa makamaka chifukwa cha m'badwo wa chromium carbide m'mphepete mwa tirigu. Pachifukwa ichi, zochitika za carburization ziyenera kupewedwa momwe zingathere.
(2) Tsatirani mosamalitsa zomwe zikuwotchera, komanso kuwongolera bwino kutentha kwanyengo. Mukawotcha 1Cr18Ni9Ti austenitic chitsulo chosapanga dzimbiri mu ng'anjo, pamwamba pa zinthuzo ndizovuta kwambiri ku carburization. Pofuna kuchepetsa kuchitika kwa chodabwitsa ichi, muyenera
Pewani kukhudzana pakati pa chitsulo chosapanga dzimbiri ndi zinthu zomwe zili ndi kaboni. Chifukwa cha kusayenda bwino kwa matenthedwe a 1Cr18Ni9Ti austenitic chitsulo chosapanga dzimbiri m'malo otentha kwambiri, imayenera kutenthedwa pang'onopang'ono. Kuwongolera kwa kutentha kwapadera kuyenera kuchitidwa motsatira kwambiri pamapindikira pa Chithunzi 1.

Chithunzi.1 1Cr18Ni9Ti austenitic chitsulo chosapanga dzimbiri chowongolera kutentha
(3) flange forging ntchito ndondomeko ulamuliro. Choyamba, zofunikira zenizeni za ndondomeko ziyenera kutsatiridwa mosamalitsa kuti musankhe zopangira zakuthupi. Pamaso Kutentha zinthu ayenera mabuku anayendera zinthu padziko, kupewa ming'alu, pindani ndi inclusions mu zopangira ndi mavuto ena. Kenako, popanga, ziyenera kuumirizidwa kumenya zinthuzo pang'onopang'ono ndikusintha pang'ono, ndiyeno kugunda mwamphamvu pamene pulasitiki yazinthuyo ikuwonjezeka. Mukakhumudwitsidwa, nsonga zakumtunda ndi zapansi ziyenera kung'ambika kapena zopindika, ndiyeno gawolo liyenera kuphwanyidwa ndikumenyedwanso.

KUPANGA NJIRA NDIKUFA

Pamene m'mimba mwake si upambana 150mm, ndi matako kuwotcherera flange akhoza kupangidwa ndi lotseguka mutu kupanga njira ndi seti kufa. Monga momwe tawonetsera pa Chithunzi 2, mu njira yotseguka yofa, ziyenera kudziwidwa kuti kutalika kwa chokhumudwitsa chopanda kanthu komanso chiŵerengero cha pulojekiti ya pad die aperture d imayendetsedwa bwino pa 1.5 - 3.0, radius ya kufa hole fillet R ndi. bwino 0.05d - 0.15d, ndipo kutalika kwa kufa H ndi 2mm - 3mm kutsika kuposa kutalika kwa kufota ndikoyenera.

Mkuyu. 2 Tsegulani njira yotsegulira
Pamene m'mimba mwake kuposa 150mm, izo m'pofunika kusankha flange matako kuwotcherera njira lathyathyathya mphete flanging ndi extrusion. Monga momwe tawonetsera mkuyu 3, kutalika kwa chopanda kanthu H0 kuyenera kukhala 0.65 (H + h) - 0.8 (H + h) mu njira ya flat ringing. Kuwongolera kwa kutentha kwapadera kuyenera kuchitidwa motsatira kwambiri pamapindikira pa Chithunzi 1.

Mkuyu. 3 Njira yokhotakhota ya mphete ndi extrusion

KUTSATIRA NTCHITO NDIKUYENEKERA ZOPHUNZITSA

Papepalali, njira yometa zitsulo zosapanga dzimbiri imagwiritsidwa ntchito ndikuphatikizidwa ndikugwiritsa ntchito njira zometa zotsekera kuti zitsimikizire kuti gawoli likuyenda bwino. M'malo mogwiritsa ntchito njira yojambulira yotseguka yotseguka, njira yotsekera yotsekedwa imatengedwa. Njira iyi sikuti imangopanga zojambulajambula
Njirayi sikuti imangowonjezera kulondola kwa kupanga, komanso imachotsa kuthekera kwa kufa kolakwika ndikuchepetsa njira yodulira m'mphepete. Njira imeneyi osati kumatha kumwa zidutswa m'mphepete, komanso kumatha kufunika m'mphepete kudula zida, m'mphepete kudula amafa, ndi kugwirizana m'mphepete kudula antchito. Chifukwa chake, njira yotsekera yotsekedwa ndiyofunika kwambiri kuti tisunge ndalama ndikuwongolera magwiridwe antchito. Malinga ndi zofunikira, kulimba kwa dzenje lakuya la chinthu ichi kuyenera kukhala kosachepera 570MPa ndipo elongation siyenera kuchepera 20%. Potenga zitsanzo mu gawo lakuya la khoma lakuya kuti mupange mayeso oyesa ndikuyesa mayeso okhazikika, titha kudziwa kuti mphamvu yolimba ya 720MPa, mphamvu zokolola ndi 430MPa, elongation ndi 21.4%, ndipo kuchepa kwagawo ndi 37% . Zitha kuwoneka kuti mankhwalawa amakwaniritsa zofunikira.

POYAMBA NTCHITO YOCHULUKA

1Cr18Ni9Ti austenitic zosapanga dzimbiri flange pambuyo forging, kupereka chidwi chapadera kwa maonekedwe intergranular dzimbiri chodabwitsa, ndi kusintha plasticity zinthu mmene ndingathere, kuchepetsa kapena kuthetsa vuto la kuumitsa ntchito. Kuti mupeze kukana kwa dzimbiri, flange yopangira mbande iyenera kukhala yothandiza kutentha, chifukwa cha izi, ma forgings ayenera kukhala olimba njira yothetsera. Kutengera kusanthula pamwambapa, zopangira zimayenera kutenthedwa kuti ma carbides onse asungunuke kukhala austenite pamene kutentha kuli pakati pa 1050 ° C - 1070 ° C. Pambuyo pake, mankhwalawa amakhazikika mwachangu kuti apeze gawo limodzi la austenite. Zotsatira zake, kukana kwa kutu kupsinjika komanso kukana kwa crystalline corrosion of forgings kumakhala bwino kwambiri. Pankhaniyi, kutentha kutentha kwa forgings kunasankhidwa kuti kuchitidwe pogwiritsa ntchito kuwombera zinyalala kutentha kuzimitsa. Popeza forging zinyalala kutentha quenching ndi mkulu-kutentha mapindikidwe quenching, poyerekeza ndi tempering ochiritsira, sikuti amafuna Kutentha amafuna quenching ndi kuzimitsa zida ndi zokhudzana opareta kasinthidwe zofunika, komanso ntchito forgings opangidwa ntchito ndondomeko zambiri. apamwamba kwambiri.

Kusanthula kwatsatanetsatane kwa phindu

Kugwiritsa ntchito njira yowongoleredwa kuti mupange ma flange forgings bwino kumachepetsa machining allowance ndi kufa kotsetsereka kwa forgings, kupulumutsa zopangira kumlingo wina. Kugwiritsa ntchito tsamba la macheka ndi kudula madzimadzi kumachepa popanga, zomwe zimachepetsa kwambiri kugwiritsa ntchito zinthu. Ndi kukhazikitsidwa kwa forging zinyalala kutentha tempering njira, kuchotsa mphamvu zofunika kuzimitsa matenthedwe.

Mapeto

Popanga ma flange forgings, zofunikira zenizeni ziyenera kutengedwa ngati poyambira, kuphatikizidwa ndi sayansi yamakono ndiukadaulo kuti mupititse patsogolo njira yopangira zachikhalidwe ndikukwaniritsa dongosolo lopanga.