Mukamva 'zigawo zamagalimoto zopangira ndalama', chithunzi chomwe chilipo nthawi zambiri chimakhala cha mawilo ovuta, onyezimira a turbocharger kapena mabulaketi odabwitsa a injini. Ndizowona, koma ndipamenenso malingaliro olakwika amakampani amayambira: kuganiza kuti ndizongopanga zinthu zapamwamba, zotsika kwambiri. M'malo mwake, ndondomekoyi imaphatikizidwa mwakachetechete mukupanga zambiri, koma zovuta zimasinthiratu. Sikuti amangopanga mawonekedwe; ndi za kupangitsa kuti ipulumuke ma 200,000 mailosi a matenthedwe ndi kugwedezeka popanda kulephera, ndikuchita izi pamtengo womwe sizimapangitsa woyang'anira zogula kuti adziwike. Ndawonapo mapulojekiti omwe mapangidwe ake anali okongola pazenera koma zowopsa m'makina oyambira, ndi ena pomwe kuwongolera kosavuta kwa ngodya yolembera kunapulumutsa ndalama zambiri pakukonza makina. Tiyeni tikambirane zimene zimafunika.
Apilo Yachikulu: Chifukwa Chake Magalimoto Akubwereranso Kukuponya Ndalama
Zimatengera geometry ndi kukhulupirika kwa zinthu. Za magawo ngati magawo amagalimoto oponyera ndalama monga ma sensa housings okhala ndi mayendedwe amkati, kapena ma node opepuka a mafelemu a batri a EV, simungathe kuwapanga kapena kuwapanga kuchokera pamtengo wolimba. Kuthekera kwapafupifupi-mawonekedwe ndikopambana koyamba. Mukupulumutsa pa zinyalala zakuthupi, makamaka ndi ma aloyi okwera mtengo, ndipo mukuchepetsa kwambiri makina achiwiri.
Koma nazi pang'ono zomwe nthawi zina zimaphonya: kusasinthika kwazitsulo. Gawo labwino la ndalama, pamene ndondomekoyi ikuyimbidwa, imakhala ndi yunifolomu, yopangidwa bwino. Izi ndizofunikira kwambiri pazinthu zomwe zili pansi pa cyclic stress. Ndikukumbukira ntchito ina ya injini ya dizilo yautsi wochuluka kwambiri magawo amagalimoto oponyera ndalama ntchito. Vuto silinali mawonekedwe; zinali kuletsa misozi yotentha m'zigawo zoonda pakati pa madoko. Tinadutsa maulendo atatu a chophimba cha chipolopolo cha ceramic ndikusintha kutentha kothira ndi 25 ° C kuti tipeze kulimba kutsogolo. Ndiwo mtundu wakusintha kwapansi pa sitolo komwe mitundu ya CAD samakuwonetsani.
Apa ndipamene mabwenzi a nthawi yayitali amawonetsa phindu lawo. Kampani ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd., ndi zaka makumi atatu mu zipolopolo ndi kupanga ndalama, ali ndi zochitika zophikidwa. Iwo awona zomwe zimagwira ntchito pazitsulo zosapanga dzimbiri za EGR valve motsutsana ndi nyumba ya turbine ya nickel-based alloy turbine. Chidziwitso chachindunji chimenecho - kudziwa momwe, tinene, 17-4PH chosapanga dzimbiri chidzachitira panthawi yochotsa zipolopolo - sichingalowe m'malo. Zimalepheretsa kuyesa-ndi-kulakwitsa kokwera mtengo pa dime yanu.
The Gritty Reality: Kulekerera, Zowoneka, ndi Machining Handshake
Palibe amene ali mumayendedwe operekera magalimoto omwe ali ndi mwayi woponyera kuti amalize pazinthu zofunika kwambiri. Lonjezo la kulolerana kwa as-cast nthawi zambiri limakhala ndi chiyembekezo pa malo okwerera. Chigawo chilichonse chimafuna datum, ndipo ndipamene makina a CNC amabwera. Zojambula zenizeni zili mukukonzekera: kusankha malo oti muponyedwe pafupi ndi ukonde ndi kusiya katundu wochuluka kuti mudule.
Ndinaphunzira izi movutirapo ndikuyamba kugwiritsa ntchito bulaketi yotumizira. Tidazipanga kuti zizikhala zowoneka bwino ngati ukonde, ndicholinga chothana ndi makina. Kulakwitsa kwakukulu. Kupotoza pang'ono kuchokera ku chithandizo cha kutentha kunapangitsa kuti mabowo a bolt asunthike mokwanira kuti apangitse vuto pamzere wolumikizira. Tinayenera kusiya gulu lonse la oyendetsa ndege. Kukonza? Tidazipanganso kuti zipangitse thupi lalikulu kuti liwonekere koma tidasiya ndalama zopangira makina pankhope zonse zovuta. Mtengo wa gawo lililonse unatsika chifukwa zokolola zinakwera. Njira yophatikizikayi ndi chifukwa chake ntchito zomwe zimaphatikiza kuponyera ndi kukonza pansi padenga limodzi, monga QSY imachitira ndi awo kuponya ndalama ndi m'madipatimenti a CNC, khalani ndi kayendedwe kabwino ka ntchito. Opanga makina amalankhula ndi anyamata opeza tsiku ndi tsiku; amadziwa momwe gawolo lingathe kugwedezeka ndipo akhoza kukonza ndondomeko yoyenera.
Kumaliza pamwamba ndi bwalo lina lankhondo. Malo oponyedwa amatha kuwoneka bwino, koma mbali yomwe imawona kuthamanga kwa mafuta kapena kukhala ndi O-ring groove, as-cast porosity ikhoza kukhala njira yodutsira. Nthawi zambiri timatchula mapeto opangidwa ndi makina osindikizira, ngakhale atawonjezera sitepe. Chinsinsi ndicho kufotokozera izi momveka bwino muzojambula. Kodi Ra 3.2 μm ndiyofunikira gawo lonse, kapena nkhope ya flange? Kusamveka bwino kuno kumawononga ndalama komanso nthawi.
Kusankha Zinthu: Sikuti Ndi Mphamvu Yokha
Yendani mumsonkhano uliwonse waumisiri wamagalimoto, ndipo zokambirana zakuthupi zimayendetsedwa ndi mphamvu zolimba komanso zokolola. Za magawo amagalimoto oponyera ndalama, ndiye tikiti yolowera basi. Muyenera kuganizira za castability, weldability (kwa sub-assemblies), ndi machinability kutsika.
Yendani kupita kuzinthu zambiri zotulutsa mpweya muzitsulo zosapanga dzimbiri kuti musawononge dzimbiri. AISI 316 ndiyabwino pakuwononga, koma ndiyabwino pamakina. Kusinthira ku giredi yosinthika kwambiri ngati 303, kapenanso mtundu wina waulere waulere kuchokera pazoyambira, zitha kuchepetsa kuvala kwa zida za CNC ndikuzungulira nthawi. Wothandizana nawo ngati QSY, yemwe amalemba ukadaulo wazitsulo zosapanga dzimbiri komanso zapadera monga cobalt ndi faifi tambala, akhoza kulangiza pazamalondawa. Akhoza kusonyeza, mwachitsanzo, mtundu wachitsulo wochepa wa carbon grade ngati gawolo lidzawotchedwa pambuyo pake, kuteteza mvula ya carbide m'madera omwe akukhudzidwa ndi kutentha.
Ndiye pali choyezera chowonjezera cha kutentha. Pamsonkhano womwe umaphatikiza nyumba za aluminiyamu ndi choyikapo chitsulo, muyenera ma alloys omwe amasewera motenthetsa bwino. Kulakwitsa koteroko kumabweretsa kupsinjika kotsalira komanso kutopa msanga. Ndi zosankha zamitundu yosiyanasiyana zomwe zimalekanitsa mawonekedwe ogwirira ntchito ndi okonzeka kupanga, okhazikika.
Njira Zolephera ndi Maphunziro Amene Amaphunzitsa
Simukumvetsetsa njira yopanga mpaka mutayiwona ikulephera. Chikumbukiro chimodzi chowoneka bwino ndi gulu la matupi a aluminiyamu othamanga. Adapambana macheke onse koma adalephera kuyesa kukakamiza m'malo a injini. Wolakwa? Micro-shrinkage porosity m'zigawo zokhuthala pafupi ndi matumba okwera, osawoneka ndi X-ray pamasankho athu pafupipafupi. The foundry adayenera kusintha kachitidwe ka gating kuti adyetse bwino maderawo panthawi yolimba. Zinali zachikale kwambiri zopangira ntchito koma osati za kupangidwa.
Vuto lina lodziwika bwino ndikuchepetsa mtengo wa zovuta. Kuonjezeranso kuti chinthu china chamkati chikhoza kuwoneka ngati chaulere pamapangidwewo, koma ngati pakufunika chitsulo cholimba cha ceramic chomwe ndi chosalimba komanso chosweka kwambiri panthawi yochotsa zipolopolo, mtengo wa unit wanu ukhoza kuwirikiza kawiri. Ndakhala ndi akatswiri opanga ma process pomwe tidayesa mtengo wowonjezera pachimake motsutsana ndi kubowola gawolo mu ntchito yachiwiri ya CNC. Nthawi zina, makina amatchipa. Cholinga cha kuponya ndalama sikuthetsa makina onse; ndikukwaniritsa mtengo wonse wa gawo lomalizidwa, lovomerezeka.
Zochitika izi zikutsimikizira chifukwa chomwe protocol yowongolera khalidwe la woperekera sichitha kukanizidwa. Sikuti kungoyendera komaliza. Ndi za kuwongolera njira pagawo lililonse: kusasinthika kwa jakisoni wa sera, kukhuthala kwa ceramic, kutulutsa kotulutsa, chemistry yosungunula zitsulo, ndi mapindikidwe opangira kutentha. Dongosolo lolimba limagwira zopotoka zisanakhale zinyalala. Ndikawunika gwero, nthawi zonse ndimafunsa za kuwongolera njira zowerengera (SPC) pamiyeso yovuta komanso kuzama kwawo kwa lipoti loyendera nkhani yoyamba.
Tsogolo: Kupepuka, Kupangira Magetsi, ndi Kusintha kwa Njira
Kuyendetsa kwa magalimoto amagetsi kukusintha magawo amagalimoto oponyera ndalama malo. Magawowo ndi osiyana: mbale zoziziritsa zotsogola kwambiri zamapaketi a batri, aluminiyamu yopepuka kapena zida zomangira magnesiamu, ndi mabulaketi amphamvu kwambiri amagetsi amagetsi. Ma voliyumu ake ndi okwera, zomwe zimakankhira ndondomekoyi kuti ikhale yowonjezereka pomanga sera ndi kumanga zipolopolo kuti zikhale zokhazikika komanso zotsika mtengo.
Palinso ntchito yosangalatsa munjira zosakanizidwa. Mwachitsanzo, kuponyera zochulukira muzitsulo zosapanga dzimbiri koma kusiya zolembera zaluso kuti akonzenso madoko a sensor. Kapena kugwiritsa ntchito makina osindikizira a 3D kuti mupange ziboliboli zadongo zachindunji za zigawo zowoneka bwino kwambiri, kudutsa zida zachikhalidwe zonse za sera pakanthawi kochepa. Apa ndi pamene makampani akulowera-kuphatikiza matekinoloje akale ndi atsopano.
Pamapeto pake, kuchita bwino pankhaniyi sikukhala ndi kabuku konyezimira kwambiri. Ndizokhudza kukhala ndi chidziwitso chakuzama kuti muyang'anire zosagwirizana pakati pa zolinga zamapangidwe, fizikisi yazinthu, ndi chuma chopanga. Ndi za abwenzi omwe angayang'ane zojambula ndikuwonetsa malo omwe atha kutenthedwa, kupereka malingaliro ozungulira ma fillet osavuta, kapena kupangira giredi yazinthu yomwe ingachite bwino muutumiki. Ubale wothandiza, wothetsa mavuto umenewo ndi umene umapangitsa kuti mapangidwe abwino akhale odalirika, okwera mtengo kwambiri a magalimoto omwe amachoka pamzere, chaka ndi chaka. Ndilo phindu lenileni la ndondomekoyi, kupitirira kukhoza kwake kupanga maonekedwe okongola.
