Mainjiniya akamatchula magawo a aloyi opangidwa ndi cobalt, sasankha zinthu - akudzipereka kuti agwire ntchito pamoto. Ma valve othamanga kwambiri a hydraulic. Miyendo yozungulira m'machitidwe a winchi akunyanja. Manozzles amavumbulutsidwa ndi slurry ya abrasive pa 600 ° C. Izi si "zabwino kukhala nazo" kulolerana. Iwo sangakambirane. Ndipo ndipamene kuyesa kwenikweni kumayambira-osati mu datasheet, koma pansi pa fakitale amatha kugwira ± 0.01 mm pa AMS 5387 cobalt alloy pambuyo pa kutentha kwa kutentha, kugaya, ndi kuyeretsa kwa ultrasonic.
Chifukwa chiyani zigawo za alloy zochokera ku cobalt zimafuna zambiri kuposa makina
Ma aloyi opangidwa ndi cobalt-makamaka ngati T800 ndi AMS 5387-amakana kukwapula, okosijeni, ndi kulira komwe fayilo kapena zitsulo zosapanga dzimbiri zimalephera. Koma mphamvu yawonso ndi chilango chawo: kuuma mpaka 45 HRC ngati kuponyedwa, kulimbikira ntchito komwe kumachepetsa zida za carbide pakati, komanso matenthedwe otsika kwambiri kotero kuti kutentha komweko kumadzetsa chiwopsezo cha microcracking. Tawona makasitomala akukana magulu chifukwa kupatuka kumodzi kwa 0.02 mm taper pa pulagi yapampu kudapangitsa kuti chisindikizo chitsike pa 3,000 psi. Kumeneko sikulephera kwa QC - ndi kusiyana kwa ndondomeko.
Kuthekera kowona kumayamba musanadule zitsulo. Zimayamba ndi kufufuza kwazitsulo: kudziwa nambala yeniyeni yosungunuka, mpweya wa okosijeni, ndi kagayidwe kake kagawidwe ka cobalt-nickel billet iliyonse. Imapitilirabe kuziziritsa koyendetsedwa pambuyo popanga ndalama - palibe njira zazifupi, palibe kuzimitsa mpweya. Kenako pamabwera makina ambiri a CNC okhala ndi zoziziritsa kukhosi za cryogenic, osati zoziziritsa kukhosi. Pomaliza, kutsimikizira kukhulupirika kwapamwamba: palibe kung'ambika kwapansi panthaka, palibe wosanjikiza, palibe kupsinjika kotsalira. Gawo lirilonse liyenera kulembedwa, kubwereza, komanso kuwerengeka.
Mphamvu zinayi zosakambidwa za fakitale yoyenerera ya cobalt yochokera ku aloyi
Fakitale yomwe imadzitcha yokha a fakitale ya aloyi ya cobalt Ayenera kusonyeza luso pamagulu anayi ogwirizana kwambiri:
- Utumiki wakuthupi: Kupeza mwachindunji kuchokera ku mphero zovomerezeka-osati ogawa-ndi kuyesa pamodzi ndi ogulitsa kuti atsimikizire kulimba kwamphamvu, kutalika, ndi intergranular corrosion resistance pa ASTM A992 ndi AMS 2269.
- Kuwongolera kwa hybrid process: Kulumikizana kosasunthika pakati pa kuyika ndalama (kwa ndime zovuta zamkati) ndi mphero ya 5-axis (pamalo osindikizira), ndikuwunika kwa CMM pamalo aliwonse osinthira matenthedwe.
- Kumaliza ntchito: Osati "monga-makina" kapena "nthaka" -koma electropolished nozzles ndi Ra ≤ 0.2 µm, kapena kuwomberedwa pakati shaft rollers ndi compressive residual stress ≥ -400 MPa.
- Chilango cham'mbali: Kutsata kwa GD&T kumatsimikiziridwa motsutsana ndi mitundu yonse ya CAD-osati ma callouts osindikiza-otsata ndondomeko ya statistical process (SPC) ya mikhalidwe yovuta monga kukhazikika, kusalala, ndi mawonekedwe a pamwamba.
Mavenda ena amatulutsa kuponyera kapena chithandizo cha kutentha. Izo zimaphwanya kuyankha. Pamene nyumba ya cobalt alloy valve ikulephera kuyesa kutopa, mukufunikira gulu limodzi lomwe liri ndi unyolo wonse-kuchokera ku bar yaiwisi mpaka ku hydrotest yomaliza.
Zomwe makasitomala amafunsa-ndi zomwe akutanthauza
"Kodi mungapange zojambula zathu?" si funso loyamba. Zowona zimabwera pambuyo pake:
- "Kodi mutha kukhala ndi malo enieni pamabowo a 12 × M6 okhudzana ndi datum A-B-C pomwe gawolo ndi 320 mm kutalika ndi 45 kg?" → Matembenuzidwe: “Kodi kupotoza kwa matenthedwe mkati mwa makina kudzataya mayanidwe ake?”
- "Kodi mumatsimikizira microstructure post-heat-treat?" → Kumasulira: "Kodi munaletsa kupanga gawo la sigma mu HAZ yowotcherera?"
- "Kodi nthawi yanu yotsogolera pazidutswa 8 za mutu wapampu wa AMS 5387 ndi uti?" → Kumasulira: “Kodi mungatumize zinthu popanda kuthamangira nthawi yothetsa kupsinjika maganizo—ndikufikirabe tsiku lathu lotumidwa?”
Tinakumana ndi zonse zitatu. Yankho si liwiro-ndikuwunika kwaukadaulo kokhazikika. Timayika chizindikiro chilichonse cha GD&T panjira yoyezeka. Timayimitsa zida zomwe zingasokoneze pulogalamu isanayambe. Timatsanzira kutentha kwa pulogalamu ya CAM ndikusintha malo okonzera moyenerera. Umu ndi momwe timatumizira ma nozzles a aloyi a cobalt ndi zero rework-ngakhale pamapangidwe a nkhani yoyamba.
Kuyang'ana m'tsogolo: kulondola sikukhazikika
Malire otsatirawa samangokhalira kulolerana movutikira. Ndizolosera zolosera. Tikuphatikiza zojambula zotenthetsera mkati mwa makina kuti tizindikire kutenthedwa komweko kusanasinthe mawonekedwe a cobalt. Tikuyenerera ma hybrid AM + machining azinthu zotsika kwambiri, zovuta kwambiri za cobalt-kudula nthawi yotsogolera ndi 40% osapereka kachulukidwe. Ndipo tikukulitsa zolembedwa zolumikizidwa ndi ISO 13485 zamagawo oyeserera a mafupa a cobalt-chromium, kutsimikizira kukhwima komweko kumagwiranso ntchito kupitilira ma hydraulics a mafakitale.
Ngati ntchito yanu ikufuna mphamvu ya cobalt koma ikukana kuvomereza kubwerezabwereza, kukhulupirika kwapang'onopang'ono, kapena kukhulupirika kwakuthupi - ndiye fakitale ya aloyi ya cobalt ayenera kuchita zambiri kuposa chitsulo chodulidwa. Iyenera kumvetsetsa chifukwa chake cobalt amachitira momwe amachitira, kuyembekezera momwe angayankhire nthawi iliyonse, ndikupanga umboni - osati magawo okha - pa sitepe iliyonse.
