Lokacin da injiniyoyi suka ƙididdige sassa don tsarin na'ura mai aiki da karfin ruwa ko manyan taro na famfo, "masana'antar simintin gyaran ƙarfe" ba kawai kalmar nema ba - buƙatu ne da ba za a iya sasantawa ba. Kwanciyar kwanciyar hankali a ƙarƙashin hawan keken zafi. Microstructural mutunci bayan zafi magani. Ƙarshen saman da ke tsira daga kwararar ƙura. Wadannan ba hakuri ba ne; ƙofofin gazawa ne. Mun ga abokan ciniki sun ƙi dukan batches samarwa saboda 0.015 mm karkata a cikin wani piston famfo Silinda gidaje haifar cavitation-jawo gajiya a 3,200 psi. Wannan shine dalilin da ya sa samo asali daga masana'antar simintin ƙarfe na gaske yana nufin fiye da takaddun shaida na ISO - yana buƙatar ingantattun horo na ƙarfe, ƙayyadaddun yanayin aiki, da ingantaccen aiki - ba kawai yarda da ƙima ba.
Me yasa Cobalt-Nickel Alloys ke ayyana ma'auni
Yawancin madaidaicin masana'antar simintin ƙarfe suna ɗaukar bakin karfe 316 ko ASTM A108 carbon karfe. Kadan daga cikin manyan abubuwan haɗin gwiwar cobalt-nickel-musamman AMS 5387 da kayan-T800-inda taurin mashin ɗin ya wuce HRC 45 da haɓakar haɓakar thermal na buƙatar ƙaramin simintin simintin ƙararrawa. A real-duniya deployments, mun lura cewa daidaitattun yashi-simintin gidaje ga AMS 5387 famfo sassa crack a lokacin nitriding idan hatsi tsarin ba a sarrafa zuwa ASTM E112 Level 7. Our tawagar validates kowane cobalt gami zuba tare da spectrographic bincike * kafin * mold rufe-da giciye-duba dendrite hannu tazara da solidification samfuri. Wannan ba ka'idar ba ce. Shi ne abin da ke kiyaye nozzles na cobalt na aiki na tsawon watanni 18 a cikin rijiyoyin allurar iskar gas ba tare da tsangwama ba.
Haɗin Kai Tsaye Ba Kalma Bace Ba—Layin Rayuwa ne Mai Girma
Fitar da simintin gyare-gyare, sannan injina, sannan maganin zafi yana haifar da tushe guda uku masu zaman kansu na kuskuren tarawa. Matsakaicin 0.05 mm a cikin simintin yashi ya zama 0.08 mm bayan m CNC milling-da 0.12 mm bayan damuwa-taimakon annealing-sai dai idan duk tafiyar matakai rayuwa a karkashin rufin daya tare da raba bayanai nassoshi. A wurin aikinmu na Qingdao, CMM iri ɗaya yana tabbatar da lissafin simintin simintin simintin gyare-gyare, ma'auni kafin kammalawa, da kuma kiran GD&T na ƙarshe ta amfani da daidaitattun matakan bincike da daidaita yanayin zafi. Mun auna har zuwa 40% matsakaicin juriya na matsayi akan injinan abin hawa winch center rollers lokacin da ake yin injina akan simintin gyare-gyaren da har yanzu dumi daga shakeout-saboda ƙwaƙwalwar zafi a cikin microstructure yana rage sake yin aiki. Wannan haɗin kai tsaye yana ba da kwanciyar hankali mai aunawa - ba maganganun talla ba.
Ikon Ingancin da ke Amsa Tambayoyi na Gaskiya-Ba Lissafin Bincike kawai ba
"Kin duba shi?" tambaya ce ba daidai ba. Wadanda suka dace sune: *Wane Layer na fatar simintin ne aka tabbatar don haɗa abun ciki? Shin an duba yanayin da ke da mahimmanci a cikin farar 0.1 mm-ko kawai an gwada shi a maki 5? Shin log ɗin bincikenku ya haɗa da ainihin lambar zagayowar tanderu don rukunin da aka yi wa zafi?* Ka'idar binciken mu ta amsa duka ukun. Kowane bawul ɗin matsa lamba yana karɓar cikakken sashe na ƙarfe akan saman rufewa. Kowane simintin ƙarfe na ƙarfe yana fuskantar gwajin eddy mai mitoci biyu don ƙarancin ƙasa - ba kawai mai shigar rini ba. Kuma a-muna riƙe takaddun shaida na ɗanyen abu, jadawalin yanayin zafi, da rahotannin CMM na shekaru 10. Domin lokacin da tushen famfo ya gaza a sa'o'i 12,000, "mun bi hanya" ba ya sake farawa samarwa. Cikakken gano yana aikatawa.
Zaɓan Ma'aikatar Simintin Ƙarfe na Ƙarfe-Ainihin Abin da ke Motsa Allura
Duba littattafan da suka wuce. Nemi shaidar abubuwa uku: Na farko, tabbacin iyawar cikin gida don takamaiman gami da neman rahoton gwaji don ainihin darajar ku (misali, T800, ba “tushen cobalt” ba). Na biyu, tambaya ta yaya suke tabbatar da kwanciyar hankali *bayan* gamawa — shin suna auna 20°C, 25°C, da 30°C don yin samfura na zahirin yanayin zafi? Na uku, tabbatar da ko nazarin su na GD&T ya haɗa da simintin aiki-ba kawai tari na haƙuri ba. Mun taɓa taimaka wa OEM ta Turai ta rage ɗigon bawul da kashi 68 cikin ɗaiɗai ta hanyar daidaita kusurwar simintin gyare-gyare don ɗaukar mashin bayan-machining a cikin zoben wurin zama. Wannan fahimtar ta fito ne daga gudanar da FEA akan simintin simintin simintin gyare-gyaren-ba daga jerin abubuwan dubawa na zane ba. Ba a bayyana madaidaicin ta hanyar karatun micrometer ba. An bayyana shi ta yadda ɓangaren ke aiki lokacin shigar, matsawa, da hawan keke. Zaɓi abokin tarayya wanda ya auna duka biyun.
