Lokacin da injiniyoyi suka ƙididdige sassan gami na tushen cobalt, ba sa zabar wani abu ba - suna yin aiki a ƙarƙashin wuta. Babban matsi na hydraulic bawuloli. Juyawa a cikin tsarin winch na teku. Nozzles da aka fallasa su da slurry a 600 ° C. Waɗannan ba juriya ba ne na "kyakkyawan-da-da". Ba za a iya sasantawa ba. Kuma wannan shine inda ainihin gwajin ya fara - ba a cikin bayanan bayanai ba, amma a cikin ma'auni na ma'aikata na iya riƙe ± 0.01 mm akan AMS 5387 cobalt alloy bayan maganin zafi, nika, da kuma tsaftacewa na ultrasonic.
Me yasa sassan gami na tushen cobalt ke buƙatar fiye da machining
Alloys na tushen Cobalt-musamman maki kamar T800 da AMS 5387-suna tsayayya da rarrafe, iskar shaka, da galling inda nickel ko bakin karfe suka kasa. Amma ƙarfinsu kuma shine hukuncinsu: taurin har zuwa 45 HRC kamar simintin simintin gyare-gyare, ƙimar aiki mai ƙarfi wanda ke lalata kayan aikin carbide a tsakiyar yanke, da ƙarancin zafin jiki wanda ke haifar da haɓakar zafi a cikin gida. Mun ga abokan ciniki sun ƙi batches saboda 0.02 mm taper ƙetare akan filogin famfo ya haifar da zubar hatimi a 3,000 psi. Wannan ba gazawar QC ba ce - rata ce ta tsari.
Iyawar gaskiya tana farawa kafin yanke karfe. Yana farawa da gano ƙarfe na ƙarfe: sanin ainihin lambar narkewa, abun cikin iskar oxygen, da rarraba girman hatsi na kowane cobalt-nickel billet. Yana ci gaba ta hanyar zagayowar sanyaya mai sarrafawa bayan simintin saka hannun jari-babu gajerun hanyoyi, babu quenching na yanayi. Sa'an nan kuma zuwa Multi-axis CNC machining tare da cryogenic coolant bayarwa, ba ambaliya coolant. A ƙarshe, tabbatar da ingancin saman: babu tsagewar ƙasa, babu abin da aka sake watsawa, babu ragowar damuwa. Dole ne a rubuta kowane mataki, a sake maimaitawa, kuma a duba.
Ƙarfin da ba za a iya sasantawa ba na ƙwararrun masana'anta na tushen gawa na cobalt
Wata masana'anta da ke kiran kanta a Cobalt tushen gami sassa factory dole ne ya tabbatar da ƙwarewa a cikin yankuna huɗu masu haɗe-haɗe:
- Kula da kayan abuSamfuran kai tsaye daga ingantattun masana'anta-ba masu rarrabawa ba-da gwajin haɗin gwiwa tare da masu kaya don tabbatar da ƙarfin ƙarfi, haɓakawa, da juriya na lalata tsaka-tsaki ta ASTM A992 da AMS 2269.
- Hybrid tsari ikoHannun hannu mara kyau tsakanin simintin saka hannun jari (don hadaddun hanyoyin shiga ciki) da milling 5-axis (don rufe saman), tare da bincikar CMM na cikin aiki a kowane wurin canjin zafi.
- Ƙarshen aiki: Ba kawai "as-machined" ko "ƙasa" -amma electropolished nozzles tare da Ra ≤ 0.2 µm, ko harbi-peened cibiyar shaft rollers tare da matsa lamba saura danniya ≥ -400 MPa.
- Girman horo: An tabbatar da yardawar GD&T akan cikakkun samfuran CAD-ba kawai buga kiran kira ba-tare da bin diddigin tsarin ƙididdiga (SPC) don halaye masu mahimmanci kamar daidaitawa, ɗaki, da bayanin martaba na saman.
Wasu dillalai suna fitar da simintin gyare-gyare ko magani mai zafi. Wannan yana karya lissafi. Lokacin da cobalt alloy bawul gidaje ya kasa gwajin gajiya, kuna buƙatar ƙungiya ɗaya wacce ta mallaki dukkan sarkar-daga ɗanyen mashaya zuwa hydrotest na ƙarshe.
Abin da abokan ciniki ke tambaya-kuma abin da suke nufi
"Za ku iya yin zanenmu?" ba shine tambaya ta farko ba. Na gaske suna zuwa daga baya:
- "Shin za ku iya riƙe matsayi na gaskiya akan ramukan zaren 12 × M6 dangane da datum A-B-C lokacin da ɓangaren ya kai 320 mm tsayi da 45 kg?" → Fassara: "Shin gurɓacewar yanayi yayin aikin injina zai jefar da jeri?"
- "Shin kuna inganta microstructure bayan-zafi?" → Fassara: "Shin kun hana samuwar lokaci na sigma a cikin walda HAZ?"
- "Mene ne lokacin jagoran ku don guda 8 na AMS 5387 famfo kai?" → Fassara: "Shin za ku iya bayarwa ba tare da gaggawar sake zagayowar damuwa ba-kuma har yanzu kuna buga ranar ƙaddamar da aikinmu?"
Mun shiga cikin duka ukun. Amsar ba sauri ba ce - nazarin aikin injiniya ne da aka tsara. Muna taswirar kowace alamar GD&T zuwa matakin tsari mai aunawa. Muna nuna yiwuwar tsangwama kayan aiki kafin fara shirye-shirye. Muna kwaikwayon nakasar zafi a cikin software na CAM kuma muna daidaita wuraren daidaitawa daidai. Wannan shine yadda muke jigilar nozzles na cobalt tare da sake yin aikin sifili-har ma akan abubuwan gini na farko.
Duba gaba: daidaito ba a tsaye ba ne
Iyaka na gaba ba kawai juriya mai ƙarfi ba. Yana da ikon tsinkaya. Muna haɗa hoton zafi a cikin tsari yayin injina don gano zafi mai zafi na gida kafin ya canza ƙirar cobalt. Muna cancantar injin ɗin AM + don ƙaramin ƙarami, manyan abubuwan haɗin cobalt mai ƙarfi-yanke lokacin jagora da 40% ba tare da sadaukar da yawa ba. Kuma muna haɓaka takaddun daidaitattun ISO 13485 don sassan gwaji na cobalt-chromium orthopedic na likitanci, yana tabbatar da wannan ƙaƙƙarfan ya shafi na'urorin lantarki na masana'antu.
Idan aikace-aikacen ku yana buƙatar ƙarfin cobalt amma ya ƙi yarda da sulhu akan maimaitawa, amincin girma, ko amincin kayan aiki-to naku Cobalt tushen gami sassa factory dole ne ya yi fiye da yanke karfe. Dole ne ya fahimci dalilin da yasa cobalt ke nuna halin da yake yi, yayi tsammanin yadda zai amsa a kowane mataki, kuma ya gina shaida-ba kawai sassa ba-a kowane mataki.
