Tsarin masana'antu ba sa kasawa saboda ƙira mara kyau - sun gaza saboda kayan suna ba da hanya ƙarƙashin matsin lamba, zafi, ko damuwa na cyclic. Mun gan shi a cikin gidajen famfo na hydraulic yana fashewa a mashaya 350, a cikin cobalt alloy nozzles yana lalacewa bayan sa'o'i 8,000 na aiki, a cikin winch center shaft rollers suna kama yayin hawan sanyi a cikin rigs na tekun Arctic. Waɗannan ba lokuta ba ne. Sigina ne - suna gaya wa injiniyoyi cewa daidaitattun abubuwan da aka gyara ba za su yanke shi ba lokacin da aikin ba zai yiwu ba.
Nan ke nan gami sassa gyare-gyare don dorewa - ba kawai yarda ba - ya zama mahimmin manufa. Ba duk kayan haɗin gwiwa ba ne ke yin abu ɗaya a ƙarƙashin girgizar zafi. Ba duk shagunan inji ba ne ke iya riƙe ± 0.01 mm akan wurin zama na tushen cobalt na T800 yayin da suke riƙe amincin microstructure AMS 5387. Kuma ba kowane mai sayarwa ba ne ke gano lambobin zafin ɗanyen abu zuwa ga tanderun narke. AMINCI na gaske yana farawa daga nan.
Me ya sa Cobalt-Nickel da High-Alloy Castings suka fi Ƙarfafa Madaidaicin Madadin
Yawancin masu siyan masana'antu sun saba zuwa bakin karfe ko ductile baƙin ƙarfe-har sai sun fuskanci slurry, kogunan mai da aka ɗora H₂S, ko lodi sama da 40 Hz. Sannan suka yi pivot. Mai sauri. Domin cobalt-nickel gami kamar waɗanda ke saduwa da ƙayyadaddun AMS 5387 suna ba da fa'idodi guda uku masu aunawa: na farko, riƙe taurin sama da 600 ° C; na biyu, juriya ga galling a cikin majalissar tuntuɓar zamiya kamar gidaje na famfo na silinda; na uku, ƙarfin gajiyar lalata a cikin mahalli masu wadatar sinadarin chloride inda bakin 316 ya kasa yin shiru.
Mun gwada wannan a cikin jigilar fage a fadin dandamalin kudu maso gabashin Asiya na bakin teku. Abokin ciniki ɗaya ya maye gurbin 42CrMo4 ƙirƙira bawul ɗin bawul tare da filogi na cobalt AMS 5387. Rayuwar sabis ta yi tsalle daga watanni 14 zuwa sama da watanni 41-duk da matsi na aiki iri ɗaya da bayanan yanayin zafi. Bambancin? Karancin kwanciyar hankali. Babu hazo carbide iyakar hatsi. Babu harin intergranular. Ƙarfin samar da ƙima kawai a kowane yanki.
Amma zaɓin gami kaɗai bai isa ba. Kuna buƙatar haɗin gwiwa-machining. Simintin saka hannun jari yana isar da siffa ta kusa-net don hadaddun hanyoyin shiga ciki a cikin bawul ɗin matsa lamba-amma kawai idan ƙirar ƙirar ƙira ta ƙima ta T800's 12.3 µm/m·°C na haɓakar haɓakar thermal. Sa'an nan CNC machining dole ne cire haja ba tare da haifar da saura damuwa da cewa jawo murdiya a lokacin karshe zafi magani. Wannan haɗin kai tsaye-simintin gyare-gyare, milling multi-axis, rage damuwa, ƙarewar saman-shine inda aikin aiki ke kullewa.
Hudu Marasa Tattaunawa Lokacin Ƙayyadaddun Ƙungiyoyin Alloy don Aikace-aikace Masu Mahimmanci
Ƙungiyoyin sayayya sukan mayar da hankali kan farashin kowace kilogram. Injiniya sun fi sani. Ga abin da ainihin ke ƙayyade farashi na dogon lokaci:
- Abubuwan ganowa zuwa lambar zafi-ba kawai takaddun shaida na niƙa ba, amma cikakkun rahotanni na ƙarfe suna nuna ainihin carbon, boron, da abun ciki na silicon a cikin ± 0.02% na ƙayyadaddun bayanai.
- Tabbatarwa mai girma a matakai uku: pre-zafi magani (don kama warpage), post-machining (kafin dubawa na karshe), da kuma bayan danniya taimako (lokacin da hakikanin duniya kwanciyar hankali bayyana)
- Tabbatar da ingancin saman, ba kawai darajar Ra ba - ta yin amfani da tsaka-tsakin haske mai haske don tabbatar da rashin ƙananan ƙananan ƙananan ƙananan ƙananan hanyoyi daga hanyoyin kayan aiki masu tsanani.
- Gwajin aiki mai daidaitawa tare da zagayowar aiki na ƙarshen amfani, kamar hawan hawan keke na sake zagayowar 10,000 akan tushen famfo kafin jigilar kaya
Wani OEM na Arewacin Amurka ya koyi wannan hanya mai wahala. Umurnin su na farko sun yi amfani da mai ba da farashi mai rahusa don nozzles na cobalt alloy. Bayan sa'o'i 3,200, raka'a biyar sun nuna micro-pitting a radiyon makogwaro - wanda ya haifar da rashin daidaituwar girman harbin harbi, ba darajar kayan abu ba. Sauya su farashin 3.7 × farashin ɓangaren asali a cikin raguwa kawai. Gyaran ba ya canza allo. Yana canzawa zuwa abokin tarayya wanda ke tabbatar da danniya mai matsi-ba kawai taurin kai ba.
Abin da Ake nufi da “Babban Aiki” A Aiki
Yana nufin riƙe kiran GD&T kamar haƙurin matsayi Ø0.05 mm akan bores coaxial guda takwas a cikin gidaje guda AMS 5387 na famfo-ko da bayan annealing bayani a 1175°C. Yana nufin isar da abin hawa injiniyoyi a kan winch center shaft rollers tare da Cpk ≥1.67 a fadin tauri, mai da hankali, da zurfin shari'a - tsari bayan tsari. Yana nufin tabbatar da duk abubuwan haɗin gwal na T800 da ASTM E112 don girman hatsi, ASTM E1268 don ƙimar haɗawa, da ISO 4287 don aikin shimfidar yanayi - ba kawai wucewa ta gani ba.
Wannan matakin sarrafawa baya faruwa a cikin sarƙoƙin samar da kayayyaki. Yana buƙatar wuraren da suka dace da ISO inda masu shirye-shiryen CNC ke bitar bayanan GD&T * tare da injiniyoyi masu tushe kafin sakin mold. Inda kayan aunawa na gani ke bincika bayanan CMM akan mahimman bayanai. Inda kowane filogi na cobalt alloy yana ɗauke da lambar QR mai haɗawa zuwa cikakkiyar takaddar bincikensa: lambar zafi, lanƙwan gwajin tensile, sakamakon binciken ultrasonic, rahoto na ƙarshe.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ya gina sunansa akan wannan horo-ba da'awar talla ba. Ayyukansu tare da masu kera tsarin na'ura mai ba da hanya tsakanin hanyoyin sadarwa suna nuna yadda tsarin simintin gyare-gyare da injina ke rage jimillar lokacin gubar da kashi 22% tare da fitar da kayayyaki na jeri-ba tare da sadaukar da maimaitawa ba. Zuba jarinsu a cikin masana'antar simintin gyare-gyare na R&D ba bisa ka'ida ba ne. Ana iya gani a cikin tushen famfo waɗanda ke yin nauyin kilogiram 42 duk da haka suna kula da ± 0.03 mm lebur a cikin nisan mita 1.2.
Abubuwan gami ba kayayyaki ba ne. Su ne layin tsaro na ƙarshe tsakanin ci gaba da aiki da gazawar bala'i. Zaɓi bisa tushen sarrafa tsari da aka rubuta-ba ƙayyadaddun bayanai ba. Bukatar ganowa kafin ku nemi kwanakin bayarwa. Kuma ku tuna: mafi arha sashi shine wanda baya buƙatar maye gurbin.
