Ibyuma bidafite ingese ntibirwanya ingese gusa-birwanya kumvikana. Iyo inzu ya hydraulic valve igomba gufata akabari 420 idafite micro-yamenetse, mugihe silinderi ya pompe izunguruka saa 3.600 rpm munsi yubushuhe bukabije, cyangwa mugihe uruzitiro rwumuyaga rwihanganira igihu cyumunyu hamwe na torsion cycle kumyaka 15 - gusa birasobanutse neza. gutera ibyuma itanga ubunyangamugayo bwa metallurgiki hamwe nubudahemuka bukenewe.
Twataye ibyuma birenga 12,000 bitagira umuyonga kuva muri 2018-ntabwo ari nkibisanzwe, ariko nkinteko zikora hamwe na GD&T guhamagarwa kurenza mm 0.02 mm, ubuso burangirira kuri Ra 0.8 µm, hamwe nubushakashatsi bwuzuye kuva mubushuhe kugeza kuri raporo yubugenzuzi bwa nyuma. Mu musaruro nyawo, twabonye abakiriya banze ibice bitatewe no kwikinisha, ariko kubera ko gutandukana kwa mm 0,05 mu buringanire bwa flange byateje gasike mugihe cyo gutangiza umurima. Niyo mpamvu rero guta ibyuma bitagira umwanda atari ugusuka ibyuma-ahubwo ni ukugenzura kinetics ikomeye, gucunga kugabanuka kwa interdendritic, no guhuza imigozi yintete ninzira zipakurura mbere yuko urwego rwa mbere rutangwa.
Impamvu ishoramari ryatsindiye gutsindira ibyuma bitagira umuyonga Geometrie
Gutera umucanga bifata amazu manini n'ibice binini - ariko kubirindiro byumuvuduko ukabije, ibyuma byinshi, cyangwa ibyuma bitwara ibyuma bya turbine, gushora imari byiganje. Igikonoshwa cyacyo ceramic gifata ibintu byiza nka 0.3 mm imbavu no kwihanganira kugera kuri CT4 kuri ISO 8062.Twakunze gutera CF8M (ASTM A351) na F316L (UNS S31603) mubice bifite uburebure bwurukuta munsi ya mm 2,5 na geometrike idashoboka gukora imashini mubukungu kuva mukabari gakomeye.
Ariko intsinzi ishingiye kubintu bitatu bitaganira:
- Igishushanyo mbonera giteganya kugabanuka k'ubushyuhe- ntabwo kugabanuka kumurongo gusa (1.8-2,2% kuri 316), ahubwo ni kugoreka anisotropique hejuru yuzuye na cores;
- Igikonoshwa cyo kurasa umwirondoro uhujwe na chimie chimie- amanota menshi ya chromium / nikel isaba gutinda buhoro no gushyuha cyane kugirango wirinde gufata karubone;
- Gusuka ubushyuhe muri ± 15 ° C.—Bishyushye cyane bitumira macrosegregation; ubukonje bwinshi butera ubukonje mubiruka munsi ya mm 4 z'ubugari.
Umwe mu bakiriya ba peteroli yo muri Amerika ya Ruguru yavuye mu mucanga F22 yerekeza mu ishoramari CF8M yo guteranya umubiri. Igipimo cyabo cyo kunanirwa cyaragabanutse kiva kuri 7.3% kigera kuri 0.4% - ntabwo byatewe nicyuma cyiza, ariko kubera ko gushora imari byakuyeho inenge yibanze ihindura uburinganire bwumupaka.
Igiciro Cyihishe cya "Bisanzwe" Amashanyarazi
CF8, CF8M, CF3, CF3M - ibi ntibishobora guhinduka. Twabonye abajenjeri bagaragaza CF8 kumashanyarazi ya pompe yinyanja, gusa bavumbuye kwangirika nyuma y amezi 14. Kubera iki? CF8 irimo ≤0.08% karubone kandi nta molybdenum. Mubidukikije bikungahaye kuri chloride, PREN yayo (Piting Resistance ihwanye numubare) yicara kuri 18–20. CF3M, hamwe na 2.0-3.0% Mo na karubone yo hasi, isunika PREN kuri 25-28 - itandukaniro rikomeye.
Guhitamo ibikoresho ntabwo ari theoretical. Irakora:
- F304L: Biremewe kubatwara ibyiciro-byoherejwe -ntabwo kuri serivisi ya gaz isharira hejuru ya 60 ° C;
- F316L: Nibura kuri hydraulic ya offshore -ariko gusa niba igisubizo-gishyizwe hamwe na passivated post-cast;
- CA6NM (ASTM A995 Gr. 4A): Birakenewe kubatwara amazi yinyanja yihuta-4% Ni + 13% Cr + 0.05% N itanga imbaraga zumunaniro> 720 MPa.
Tugenzura ubushyuhe bwose hamwe na PMI (Ibyiza byo Kumenyekanisha Ibikoresho) kandi tugumana raporo yikizamini cyerekana urusyo rwerekana Cr, Ni, Mo, na N - ntabwo "ihura na ASTM." Kuberako icyiciro cyemewe kuri F316L kirashobora kugabanuka niba azote ari 0.03% aho kuba 0.06%.
Kuva muri Casting to Fonction: Impamvu Vertical Integrated Matters
Gutera ibyuma bidafite ingese ntibirangira mugihe igice gikonje. Ubuso busa burimo micro-porosity, imihangayiko isigaye, hamwe nubunini bwa oxyde - ntanimwe yemewe yo gufunga kashe cyangwa kuzunguruka. Aho niho guhuza vertical bihinduka ibyemezo.
Ku kigo cyacu cya Qingdao, ibyuma byose bidafite ingese birakorwa:
- Kuvura ubushyuhe- gukemura annealing kuri 1040–1120 ° C hakurikiraho kuzimya amazi, kugenzurwa no gushushanya amakarita ya termocouple;
- Imashini—Kuri 5-axis ya CNC ifite umwanya wukuri muri 0,01 mm kuri Ø12 mm bores;
- Kuzamura ubuso- gutoranya kugabanya Ra no kuvugurura ibyubaka, cyangwa kurasa kurasa kugirango uhangayike mukarere gakomeye.
Imodoka yubudage yubudage OEM yari ikeneye inzu ya piston pompe ya silinderi yibanda cyane <0,015 mm hagati yo kurambirwa no kuzamuka. Gutera umucanga wenyine ntibishobora kubitanga. Ibikorwa byacu bivangavanze - ishoramari ryerekana imiterere itoroshye, hanyuma kurambirana no kurambirwa muburyo bumwe - byagabanije ibice 62% kandi byongerera igihe cyo gukora kuva 8000 kugeza 14.500.
Mugihe ukeneye gutera ibyuma ikora - ntabwo yatsinze igenzura gusa - ukeneye abafatanyabikorwa bakemuye uburyo bwo gukomera kuri AMS 5387 cobalt alloys, kwemeza imyirondoro yubushyuhe bwa T800 ishingiye kuri pompe, kandi ugakurikirana 100% yubushyuhe bwibikoresho bigasubira mu itanura rya EAF. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yubaka ubwo bushobozi muri buri kintu - ntabwo ari ikirego, ahubwo ni inyandiko, ikurikiranwa. Precision ntabwo yongewe kumpera. Yakozwe mu ngano yambere.
