Lokacin da injiniyoyi suka bayyana a bawul keji factory, Ba wai kawai yin oda ba - suna zaɓar abokin tarayya wanda zai iya riƙe ± 0.01 mm haƙuri a ƙarƙashin matsin lamba na 350, yana riƙe da amincin microstructural bayan maganin zafi, da kuma isar da cikakkun abubuwan ganowa don ASME Sashe na VIII ko API 6A yarda. Wannan shine gaskiyar aiki-ba harshen talla ba.
Mun ga ayyuka da yawa sun tsaya cak saboda mai "ƙwararrun" mai ba da kayayyaki ba zai iya riƙe kiran GD&T akan cages na cobalt-nickel ba yayin tabbatarwar CMM ta ƙarshe. Ɗaya daga cikin famfo OEM na Arewacin Amurka ya yi asarar makonni shida lokacin da mai siyar da su na baya ya yi kuskuren fassarar buƙatun girman hatsi na AMS 5387-wanda ya haifar da fashewa da wuri a wurin wurin zama. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Muna ɗaukar kowane kejin bawul a matsayin tsarin aiki: rufewa saman geometry, haɓaka haɓakar zafi, da rarraba damuwa ba damuwa bane na biyu. An gina su a cikin mashin ɗin farko.
Kayan aikinmu mai yarda da ISO a cikin Qingdao yana ɗaukar cikakken jerin - yashi yashi na ASTM A48 Class 35 baƙin ƙarfe gidaje, Multi-axis CNC karewa na hanyoyin kwarara na ciki, da kuma bayan-machining maganin zafi wanda aka inganta ta taswirar tauri da samfurin ƙarfe. Ba mu fitar da matakai masu mahimmanci ba. Lokacin da masana'anta na hydraulic na Turai ke buƙatar 220 mm diamita piston famfo silinda gidaje tare da taurara 42CrMo4 bores da nitrided sealing filayen, muna sarrafa daidaiton ƙarfe daga raw billet zuwa ƙarshen saman ƙasa - babu bambancin tsari-zuwa-batch a yanayin zurfin ko taurin gaske. Wannan haɗin kai na tsaye yana kawar da gazawar mu'amala tsakanin kayan aiki da kayan aikin injina.
Hukunce-hukuncen fasaha guda uku sun raba abin dogaron samar da kejin bawul daga injinan kayayyaki:
- Dabarun samun kayan aiki: Mu kawai muna amfani da allurai na tushen cobalt (T800, Stellite 6, AMS 5387) ƙwararrun ƙwararrun rahotannin gwajin niƙa tare da cikakkun bayanan sinadarai da ingantattun kayan inji-ba kawai sunaye masu daraja a kan daftari ba. Ƙungiyarmu ta fasaha ta haɗu da masu samar da kayayyaki ta amfani da ASTM E112 ƙididdigar girman hatsi da gwajin microhardness ASTM E384 a fadin sassan giciye.
- Tsari-tsarin lissafi na farko: Kafin yankan karfe, injiniyoyinmu suna kwaikwayi murdiya mai zafi yayin zagayowar rage damuwa don manyan gidajen simintin gyaran kafa. Don wani oda na nadi na cibiyar winch a cikin tekun kwanan nan, mun daidaita hanyoyin kayan aiki don rama abin da aka annabta na 0.018 mm warp — kawar da sake yin aikin da zai jinkirta bayarwa da kwanaki 11.
- Binciken da aka haɗa-ba a haɗa shi ba: Kowane cage na bawul yana yin bincike na CMM guda uku: bayan m machining (don tabbatar da izinin hannun jari), bayan kammala machining (cikakken GD&T), da kuma bayan tsaftacewa ta ƙarshe (don gano lalacewar kulawa). Bayanan gani na gani yana bincika ƙimar saman Ra ƙasa zuwa 0.2 µm—an tabbatar da ƙayyadaddun ƙayyadaddun ma'auni na abokin ciniki, ba ƙaƙƙarfan ƙofa ba.
Wasu suna ɗauka cewa cages na cobalt alloy suna buƙatar kayan aiki na musamman. Gaskiyar ita ce, nasara tana kan maimaitawa-ba sabon abu ba. Muna gudanar da saitin kayan aiki iri ɗaya a cikin injunan HAAS VF-6 guda biyar don AMS 5387 nozzles, tare da saka idanu akan kayan aiki da kayan aiki mai sarrafa kansa. Lokacin da mai ba da sabis na filayen mai na kudu maso gabashin Asiya ya ba da umarnin 47 cobalt alloy matosai tare da kujerun conical na 12°, mun sami yawan amfanin ƙasa na farko na 99.4% - ba saboda “ci-gaba AI ba,” amma saboda ma’aikatanmu suna sake sake duba bayanan bincike kowane awa 8 da log coolant pH matakan kowane motsi.
Ba a rage yawan kuɗi ta hanyar yanke sasanninta. Ana sarrafa shi ta hanyar kawar da rashin tabbas. Binciken injiniyanmu ya haɗa da amsawar ƙirƙira a cikin sa'o'i 48: tuta sassan bangon bakin ciki masu iya yin magana, suna ba da shawarar madadin radi don guje wa alamun ƙona EDM, ko ba da shawarar sauye-sauyen tsarin kula da zafi don hana shafin yanar gizo a cikin geometries asymmetric. Abokin ciniki ɗaya ya rage jimlar kuɗin aikin da kashi 22% bayan mun ba da shawarar sauyawa daga saka hannun jari-T800 zuwa simintin yashi + daidaitaccen mashin ɗin 17-4PH — ba tare da lalata ƙimar matsin lamba ba.
A bawul keji factory yana samun amincewa lokacin da yake jigilar takardu tare da kowane bangare: takaddun shaida, bayanan kula da zafi, rahotannin CMM tare da rarrabuwar kawuna, da hotunan dubawa na gani da ke nuna cikar yanayin saman. Muna yin wannan don kowane oda-har ma da samfura. Domin a cikin manyan matsi na hydraulics ko tsarin kula da teku, kejin ba wani abu bane. Ita ce iyaka tsakanin aiki da gazawa.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ya ci gaba da inganta tsarin aikin injinsa na simintin gyare-gyaren don samar da famfo na gaba-musamman yana niyya daidaiton daidaiton kwararar kwarara (<± 1.5%) da kuma tsawaita rayuwar sabis a cikin mahallin slurry. Manufar ba ta canzawa: sanya kwanciyar hankali mai faɗi, mai iya tabbatar da aikin ƙarfe, da lokacin isar da saƙo.
