Lokacin da injiniyoyin sararin samaniya suka ƙididdige Inconel 718 don injin turbine, nozzles na man fetur, ko ginshiƙan tsari, ba kawai zaɓin wani abu bane—suna ƙaddamar da sarkar masana'anta wanda dole ne ya sadar da matakan ƙananan matakan, tsarin hatsi mai maimaitawa, da sifili porosity a kowane simintin. Shi ya sa ake neman wani Inconel 718 zuba jari simintin gyaran kafa factory ba kasafai yake farawa da ƙididdigan farashi—kuma kusan koyaushe yana ƙarewa tare da bayyana gaskiya, ƙirar ƙarfe, da ingantacciyar ƙwarewar kayan aikin jirgin.
Me yasa Inconel 718 Ya Bukaci Fiye da Daidaitaccen Simintin Simintin Ilimi
Inconel 718 ba a jefa kamar 316 bakin karfe. Babban nickel (50-55%), niobium (4.75-5.5%), da titanium (0.65-1.15%) abun ciki yana haifar da matsananciyar ƙarfin ƙarfi. Ƙunƙarar kogon suna samuwa cikin sauƙi. Microsegregation yana kaiwa zuwa hazo lokaci na Laves-musamman a cikin sassan lokacin farin ciki. Kuma tagogi na maganin zafi suna da kunkuntar: maganin anneal a 950-1050 ° C, sa'an nan kuma tsufa a 720 ° C na 8 hours sannan 620 ° C na 8 hours. Rasa siga guda ɗaya, kuma ƙarfin ɗaure ya ragu da kashi 15%.
Mun ga abokan ciniki sun ƙi dukan kuri'a saboda bambance-bambancen tazarar hannu na dendritic - wanda ba a iya ganewa ga ido tsirara amma an tabbatar ta hanyar taswirar SEM-EDS. Wannan shine dalilin da ya sa ƙarewar saman kawai ba ya ƙayyade inganci. Yana da game da yadda ƙirar kakin zuma ke sarrafa ƙimar sanyaya na gida. Yadda harsashi mold preheat zafin jiki ke shafar ciyarwar interdendritic. Yadda raɓa yanayin tanderu ke rinjayar ƙididdige yawan hada oxide.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., muna ɗaukar kowane Inconel 718 simintin gyare-gyare a matsayin taron thermomechanical-ba aikin kwafi ba. Kamfanonin mu masu yarda da ISO suna amfani da zubewar harsashi mai vacuum, sarrafa sanyaya bayan simintin simintin gyare-gyare, da bayanin yanayin zafi na ainihi a kowane yanayin zafi. Kowane tsari yana ɗauke da cikakkun MTRs: sinadaran sinadaran kowane ASTM B637, girman hatsi kowane ASTM E112, da sakamakon gwajin injina daga samfuran lab da aka tantance da aka yanke daga zubo ɗaya.
Haɗin Kai Tsaye Yana Warware Matsala "Cikakken-zuwa-Machining Handoff".
Yawancin masu samar da sararin samaniya suna fitar da injina bayan simintin gyare-gyare. Wannan yana haifar da maki uku na gazawa: murdiya mai zafi yayin jin daɗin ɗanɗano, rashin daidaituwa tsakanin simintin datum da saitin ƙayyadaddun kayan aikin CNC, da daidaiton saman ƙasa kafin milling na ƙarshe.
Mun mallaki duka layin simintin saka hannun jari da sel CNC mai axis biyar a ƙarƙashin rufin ɗaya. Wannan yana nufin ƙungiyar metrology iri ɗaya tana tabbatar da ɓangaren simintin simintin a kan Zeiss CONTURA CMM-sannan kai tsaye tsara aiki na gaba ta amfani da firam ɗin GD&T iri ɗaya. Babu fassarar tsarin daidaitawa. Babu sake-datuming. Babu mamaki bambance-bambancen jari.
Misali: yawan man fetur na abokin ciniki yana buƙatar ± 0.025 mm kauri na bango akan haƙarƙarin 1.2 mm. Wanda suka rigaya ya kera waɗancan haƙarƙarin bayan simintin simintin gyare-gyare-amma ragowar damuwa ya haifar da baka 0.04 mm cikin kashi 30% na sassa. Mun sake fasalin gating ɗin don rage ƙarancin zafin jiki, mun ƙara riƙe danniya a 850°C kafin yin aiki mai tsauri, kuma mun yi amfani da hanyoyin niƙa trochoidal tare da zurfin radial 0.1 mm. Yawan amfanin ƙasa ya tashi daga 68% zuwa 99.2%.
Wannan haɗin kai kuma yana ba da damar hanyoyin haɗin kai-kamar simintin sifofi na kusa-net tare da izinin hannun jari na 0.3 mm, sannan ƙarasa saman rufewa mai mahimmanci tare da gogewa na lantarki zuwa Ra ≤ 0.2 µm. Babu niƙa ta sakandare. Babu haɗarin microcrack.
Tabbatar da Gaskiyar Duniya: Daga Zane zuwa Kayan Aikin Jirgin Sama
Takaddun takaddun takaddun ba sa kasawa. Abubuwan da ke yi. Don haka muna matsa lamba-gwajin kowane Inconel 718 aerospace simintin gyare-gyare-ba kawai hydrostatically, amma tare da aikin kwaikwayo. Wani odar gidaje na famfo na baya-bayan nan ya haɗa da gwajin matsi na keken keke a mashaya 420 don zagayowar 10,000 yayin sa ido kan hayaƙin sauti. Raka'a biyu sun nuna sa hannun ƙananan leak a zagayowar 7,842. Tushen dalili? Karamin kyawon harsashi yana fashe yayin lalata, ganuwa ga X-ray amma ana iya gano shi ta hanyar shigar rini da aka inganta ta hanyar tashin hankali na ultrasonic.
Yanzu muna gudanar da duk inconel 718 harsashi ta atomatik dubawa pre-zuba-duba micro-cracks, shafi kauri uniformity, da kuma abin da ya saura. Yana ƙara sa'o'i 4.2 a kowace kuri'a amma yana kawar da 92% na kin amincewa da ƙarshen mataki.
Abokan cinikinmu suna jigilar waɗannan sassan zuwa Tier 1 Aerospace OEMs a duk Arewacin Amurka da Turai. Suna dogara da cikakkiyar gano mu: kowane simintin yana ɗauke da lambar QR mai alaƙa da lambar zafin albarkatun ƙasa, ID ɗin harsashi, log ɗin makera, rahoton CMM, da takaddun shaida na NDT. Ba a ɗauka komai. Ana auna komai.
Zaɓin Inconel ɗinku 718 Kamfanin Simintin Zuba Jari-Abin da Ake Mahimmanci
Kar ku tambayi "Za ku iya jefa Inconel 718?" Tambayi maimakon:
- Menene mafi dadewa na ci gaba da samar da AMS 5662 Inconel 718 - ba tare da karkatar da kayan aiki ba?
- Kuna yin gwaji mai zafi akan takaddun shaida da aka ciro daga kowace zuba?
- Shin za ku iya samar da taswirar kwararar hatsi da ke nuna daidaitawar dendrite dangane da hanyoyin lodi?
- Ta yaya kuke tabbatar da amincin harsashi kafin shigowar ƙarfe?
- Menene matsakaicin ƙimar amincewar labarin farko don zanen sararin samaniya tare da buƙatun AS9102?
Waɗannan tambayoyin sun keɓance wuraren da ke bin ƙayyadaddun bayanai daga waɗanda suka fahimci dalilin da yasa kowane takamammen ya wanzu. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., muna amsa su da bayanai-ba ƙasidu ba. Domin lokacin da bangaren ku ke aiki a 650°C a ƙarƙashin 12,000 RPM, haƙuri ba bisa ka'ida bane. Bambanci ne tsakanin nasarar manufa da gazawar bala'i.
Idan kana bukatar wani Inconel 718 zuba jari simintin gyaran kafa factory wanda aka gina don lissafin darajar sararin samaniya-ba kawai iyawar simintin gyare-gyare ba-farawa da ikon mallakar tsari, ƙaƙƙarfan ƙarfe, da gano rashin daidaituwar sifili. Sauran ya biyo baya.
