Mukamva 'CPP Investment casting,' kuyanjana komweko kwa ambiri ndi njira yokhazikika ya zipolopolo za ceramic. Koma ndi pamene msampha woyamba wamba. M'zaka zanga zomwe ndikuchita ndi ma geometri ovuta komanso magawo owoneka bwino kwambiri, ndawonapo zambiri zomwe zimathandizira CPP-zomwe zimatanthawuza mawonekedwe a Cast Polypropylene-monga chinthu china chotheka. Chowonadi ndi chosasinthika. Kugwiritsa ntchito kwake, makamaka molumikizana ndi ma aloyi apamwamba, kumafuna kukhudza kwina komwe sikumakhala ndi maupangiri amtundu uliwonse. Ambiri amaganiza kuti zonse zimangotengera nthawi yayitali, koma nkhaniyo imayamba kale kwambiri, ndikusokonekera kwapatuni komanso zipinda zotayirira. Ndikukumbukira ntchito ina koyambirira komwe tidakumana ndi ming'alu yazigoba yosalekeza pazitsulo zosapanga dzimbiri; tidathamangitsa zoikamo za ng'anjo kwa milungu ingapo tisanazindikire kuti vutolo linali kusakanikirana kwa kutentha kwa sera ndi CPP pakuwonjeza. Limenelo linali phunziro lovuta.
Pakatikati pa Njirayi: Sizokhudza Nkhungu Yokha
Tiyeni tiwononge mwayi wa CPP. Phindu lake lalikulu ndikukhazikika kwamitundu yayikulu, yosalala poyerekeza ndi sera yeniyeni. Kwa kampani ngati Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), yomwe imagwira ntchito zosiyanasiyana kuchokera ku zidutswa zamtengo wapatali zodzikongoletsera mpaka kuzinthu zolemera zamafakitale, chisankho ichi chimakhala chanzeru. Pa nsanja yawo, tsngtaocnc.com, mukhoza kuona maganizo awo kuponya ndalama kudutsa zipangizo zosiyanasiyana. Ndondomeko ya CPP imawala mukamagwira ntchito ndi zitsulo ndi ma aloyi opangidwa ndi nickel omwe amawagwiritsa ntchito mwapadera. Chitsanzocho chiyenera kukhala ndi mawonekedwe ake osati panthawi yosonkhanitsa, koma kupyolera mu kuviika koyamba koyambirira. Ngati kutentha kwa slurry kwazimitsa, kapena chinyezi chambiri, mutha kumamatira movutikira pamtunda wa CPP, zomwe zimatsogolera kuzinthu zina pambuyo pake. Ndi chinthu chobisika kuti mumangophunzira ndikuwononga gulu.
Kumene ukatswiri weniweni umabwera ndikusintha kumanga zipolopolo. Mchenga wokhazikika wa stucco sungakhale bwenzi lapamtima la CPP. Takhala ndi zotsatira zabwinoko ndi mchenga wa zircon wonyezimira, wokulirapo kuti malaya angapo oyamba atsike kwambiri polima. Izi sizinthu zamabuku; idachokera ku kuyesa ndi zolakwika. Ulamuliro wautali wa QSY, womwe udadziwika zaka 30+ akugwira ntchito, ukuwonetsa kuti adutsa m'njira zophunzirira izi. Ntchito yawo ndi ma aloyi opangidwa ndi cobalt ndi zitsulo zopangidwa ndi nickel ikunena makamaka. Ma alloys awa amatsanulira pa kutentha kwakukulu, kotero chipolopolo chomwe chimamangidwa pamtundu wa CPP chiyenera kukhala ndi kukana kwapadera kwa kutentha. Chigoba chofooka kuchokera ku chovala choyamba chosauka chidzasweka, kuchititsa kuti chiwonongeko chiwonongeke. Ndi kulephera kochititsa chidwi komanso kokwera mtengo.
Mfundo ina yothandiza yomwe nthawi zambiri imanyalanyazidwa ndi mapangidwe a gating system a CPP. Chifukwa chakuti zinthuzo ndi zolimba pang'ono, zimatha kupirira zazikulu, zowongoka kwambiri za sprue, zomwe zingathandize kudyetsa magawo olemera. Koma kuuma uku kumatanthauzanso kuti sikukhululuka kuthana ndi kuwonongeka. Ndikukumbukira gulu la mapatani a nyumba yopopera yomwe idapanga ming'alu yatsitsi pamphambano zachipata chifukwa chogwira movutikira pambuyo pomanga. Sitinachigwire mpaka titaviika, ndipo zotsatira zake zinali kutayikira kwa zipolopolo panthawi ya dewaxing. Chigawo chonsecho chinali chopanda pake. Zinatiphunzitsa kuti ndondomeko yoyendetsera ndondomeko ya CPP iyenera kukhala yolimba kwambiri kuposa sera.
Synergy Yazinthu: Kumene CPP Imakumana Ndi Zitsulo
Kusankhidwa kwa zinthu zachitsanzo ndi zopanda pake popanda kuganizira zitsulo zomaliza. Apa ndipamene maziko a foundry amafunikira kwambiri. Chithunzi cha QSY chitsulo chosapanga dzimbiri, zitsulo zotayidwa, ndi zosakaniza zapadera si mndandanda chabe; imatchula magawo awo a ndondomeko. Kuthira aloyi wapamwamba wa nickel mu chipolopolo chopangidwa kuchokera ku chitsanzo cha CPP kumafuna kupsa mtima koyendetsedwa bwino. Mpweya uliwonse wotsalira kuchokera pa chitsanzo ukhoza kuyambitsa carburization pamwamba pa kuponyera, kusokoneza kukana kwa dzimbiri. Tidaphunzira kugwiritsa ntchito nthawi yayitali, yowotcha ya okosijeni pazifukwa zotere, nthawi zina ngakhale kuwonjezera siteji ya kutentha kwapang'onopang'ono kuti muchepetse CPP pang'onopang'ono isanakwere mpaka kutentha kwa sintering.
Zazigawo monga matupi a valve kapena masamba a turbine mkati zitsulo zopangidwa ndi nickel, kufunika komaliza pamwamba ndikofunika kwambiri. Mapeto amtundu wa CPP amasunthira mwachindunji ku nkhungu ya ceramic. Chizindikiro chilichonse chakuya kapena mzere woyenda papataniyo udzatulutsidwanso mokhulupirika. Chifukwa chake, mtundu woyamba wa jekeseni wa CPP ndi wofunikira kwambiri. Si chinthu chamtengo wapatali. Tidasinthapo kale ogulitsa chifukwa cha kusasinthasintha kwapatali komwe kunapangitsa kuti titha kumaliza ntchito zodula pomaliza. Nthawi zina, kukonza kunali kophweka ngati kusintha mpweya wa jekeseni, koma kuzindikira kuti kunatengera sleuthing yodutsa pakati pa sitolo ya chitsanzo ndi malo oyambira.
Mosiyana ndi izi, pazitsulo zina za carbon kapena zitsulo zotayidwa, zofunikira zimakhala zosiyana. Apa, kuyang'ana kwambiri kungakhale pakuchita bwino kwa mathamangitsidwe akuluakulu. Mapangidwe a CPP amatha kukhala olimba pakusonkhanitsa zipolopolo mobwerezabwereza, koma muyenera kuyeza izi potengera mtengo woyambira wopangira jakisoni wa pulasitiki motsutsana ndi kufa kwa sera. Kwa njira zazifupi, sizingakhale zomveka. Ndawonapo mapulojekiti pomwe kusanthula kwamitengo yakutsogolo kudapha njira ya CPP, kumatikankhira ku sera yachikhalidwe pagulu la zidutswa 50. Kugwiritsa ntchito ndalama ndi gawo limodzi la ndondomekoyi monga zitsulo.
Kugwirana Chanza kwa Machining: Kuchokera Kuponya mpaka Gawo Lomaliza
Palibe zokambirana zomwe zatha popanda kukhudza zomwe zachitika pambuyo poponya. Mphamvu yayikulu ya wothandizira wophatikizika ngati QSY, wopereka onse awiri kuponya ndalama ndi CNC makina, ndi ulamuliro pa kayendedwe ka ntchito yonse. Mukaponya kuchokera pamtundu wa CPP, kusasinthasintha komwe mumapeza kumamasulira mwachindunji pakukonza makina. Wopanga makinawo sakumenya nkhondo kuti apeze malo amtundu wa datum pamitundu yosiyanasiyana. Tikufuna pafupi ndi net-shape, koma 'pafupi' ndi mawu achibale. Njira yoyendetsedwa bwino ya CPP imatha kupirira zolimba, zomwe zikutanthauza kuti katundu wocheperako angachotsedwe pa CNC mphero kapena kutembenuka.
Izi ndizofunikira pamakina opangira makina olimba ngati ma aloyi opangidwa ndi cobalt. Kuchotsa zinthu zochulukirapo kumatenga nthawi komanso kumawononga zida. Mwa kukhathamiritsa njira yoponyamo kuti muchepetse kuchulukirachulukira, mtengo wake umatsika kwambiri. Ndi synergy yomwe nthawi zambiri imachepetsedwa. Ndathandizana ndi mapulojekiti omwe gulu lokonza makina limapereka ndemanga pa mawanga olimba obwerezabwereza kapena makulidwe a khoma losagwirizana, ndipo tidatengeranso ku mapangidwe apangidwe kapena kuyanika kwa zipolopolo. Ndemanga zotsekekazi ndizofunika kwambiri ndipo ndichinthu chomwe mumangopeza pansi pa denga limodzi.
Palinso vuto la fixturing. Kuponyedwa kuchokera pamtundu wokhazikika wa CPP kumapangitsa kuti pakhale mawonekedwe odalirika pabedi la CNC. Nthawi ina tidakhala ndi ntchito yamabulaketi angapo pomwe zoyikapo zoyikapo zinali zosemphana ndi kuchucha kwa sera kotero kuti aliyense amafunikira chizindikiro. Kusinthira ku mtundu wa CPP wa gawolo la banja kunalinganiza mapepalawo, kudula nthawi yopangira makina ndi pafupifupi 15%. Ndi zochulukirachulukira, zopindulitsa izi zomwe zimatanthawuza kupambana, osati kungotulutsa zokolola.
Zowona Zogwirira Ntchito ndi Njira Zolephera
Patsiku ndi tsiku, chiphunzitsocho chimakumana ndi zenizeni. Cholinga chachikulu cha ntchito ndi CPP ndikuwongolera zinyalala. Utsi wopserera ndi wosiyana ndi sera weniweni. Mufunika mpweya wabwino komanso nthawi zambiri zowotcha kuti mukwaniritse miyezo ya chilengedwe. Ndi mtengo wowonjezera womwe uyenera kuwonjezeredwa. Kuphatikiza apo, chipolopolo chomwe chimagwiritsidwa ntchito chimakhala choipitsidwa kwambiri ndi zotsalira za polima, zomwe zimatha kusokoneza kukonzanso kapena kutayika poyerekeza ndi zipolopolo zotsukidwa ndi sera. Izi sizongophwanya mgwirizano, koma ndizomwe zimapangitsa kuti ntchito yanthawi yayitali ikhale ndi machitidwe ake.
Kusanthula kulephera ndi gawo lina lodzala ndi maphunziro. Chilema chofala chomwe tidathamangitsa chinali chotchedwa 'mitsempha' - mawonekedwe abwino, ngati mtsempha pamalo oponyedwa. Zinali zofala makamaka pazikuluzikulu, zathyathyathya zopangidwa kuchokera ku machitidwe a CPP. Chifukwa chake? Nthawi zambiri ankaloza ku chigobacho. Lingaliro lomwe tidakhazikikapo linali loti CPP, panthawi yomwe ikukulirakulira kwambiri, idapanga ming'alu yaying'ono mu chovala choyamba cha ceramic. Kenako zitsulo zosungunukazo zinalowa m’ming’alu imeneyi. Yankho lake lidaphatikizapo kukonza slurry kupanga mphamvu yobiriwira bwino ndikusintha mpweya wowuma kuti ukhale wofanana, kuteteza kupsinjika mu chipolopolo. Zinatenga miyezi yambiri kuti DOE (Design of Experiments) iyambe.
Ndiye pali chinthu chaumunthu. Kuphunzitsa akatswiri kuti agwire ndikusonkhanitsa ma CPP amafunikira malingaliro osiyanasiyana. Sangadalire kusinthasintha pang'ono kwa sera kuti 'apike' mfundo yolakwika kuti ikhale m'malo mwake. Kukonzekera kuyenera kukhala koyenera kuyambira pachiyambi. Tinayambitsa ma jigs osavuta komanso owonetsa pamisonkhano yovuta, zomwe zidachepetsa kwambiri zolakwika zokhudzana ndi zipolopolo. Ndizing'onozing'ono, zosinthidwa zokhazikika zomwe zimalekanitsa mzere wogwira ntchito kuchokera ku zokolola zambiri.
Malingaliro Omaliza: Chida mu Arsenal
Ndiye, kodi ndalama za CPP zikuponya chipolopolo chasiliva? Ayi ndithu. Ndi chida chapadera. Mtengo wake umatsegulidwa mukakhala ndi pulogalamu yoyenera: magawo omwe amafunikira kukhazikika kwapamwamba kwambiri, nthawi zambiri kukula kwake kapena ndi ma geometries enaake, ndikuphatikizidwa ndi zitsulo zomwe zimapindula ndi kulondola uko. Kwa olimba ngati QSY omwe ali ndi chidziwitso chozama pazida ndi njira, ndi imodzi mwamakina ofunikira omwe amawathandiza kuthana ndi ntchito zovuta - zigawo zapadera za aloyi zazamlengalenga, mphamvu, kapena mafakitale olemera pomwe kulephera sikungachitike.
Ulendo wokhala ndi njira iliyonse ngati iyi ndi yobwerezabwereza. Mumatengera mfundo yayikulu, mumakumana ndi zolephera zapadera, mumasintha, ndikuyeretsa. Mbiri yazaka 30 yotchulidwa ndi QSY imalankhula za kuzungulira kwa maphunziro. Chidziwitso chenicheni sichimangodziwa momwe mungayendetsere ndondomekoyi, koma kudziwa nthawi yogwiritsira ntchito, momwe mungasinthire zitsulo zomwe zili pafupi, ndi momwe mungaphatikizire mopanda malire ndi masitepe otsika ngati makina. Kumvetsetsa kokwanira, konyowa pang'ono, koyendetsedwa ndi zochitika komwe kumasintha ukadaulo kukhala chigawo chopangidwa modalirika. Izi, pamapeto pake, ndi zomwe malondawa ali nawo.
