Mukamva 'ceramic core for investment casting', ambiri amaganiza kuti ndi chosungira, mawonekedwe ansembe. Ndilo lingaliro lolakwika loyamba. M'malo mwake, ndiye wopanga zovuta zamkati. Chingwe chopangidwa molakwika chingathe kugwa, kusuntha, kapena kulephera kutuluka, kuchotsa tsamba lonse la turbine kapena implant. Ndawonapo masitolo akudzudzula aloyi kapena chipolopolo, koma kupeza chomwe chimayambitsa chinali maziko omwe sakanatha kupirira kutenthedwa kwa kutentha kwa superalloy kutsanulira. Sichigawo; ndi kudzipereka kulondola kuyambira pachiyambi pomwe pakupanga mapangidwe.
Zofunika Si Ceramic Yokha
Kuyitana a maziko a ceramic zili ngati kuitana zitsulo 'zitsulo'. Kapangidwe kalikonse. Miyendo yokhala ndi silika ndi yofala, koma pazitsulo za nickel zapamwamba zomwe zimatsanuliridwa pamwamba pa 1500 ° C, mukuyang'ana machitidwe opangidwa ndi alumina kapena zirconia. Kusiyana kwake sikungotengera kutentha. Coefficient of thermal expansion (CTE) iyenera kupangidwa kuti igwirizane ndi nkhungu yozungulira. Kusagwirizana, ngakhale pang'ono, kumapangitsa kuti pakhale ming'alu yachisokonezo panthawi yozizira. Ndikukumbukira projekiti ya a cobalt-based alloy zambiri pomwe tidagwiritsa ntchito pachimake aluminiyamu. Zinkawoneka bwino pambuyo pa sera, koma mutathira, ming'alu yaying'ono pakatikati idamasuliridwa kukhala ming'alu yapakatikati pamayendedwe amkati. Zofunika kwambiri zinali 'zabwino', koma sizinali 'zolondola'.
Ndiye pali binder system. Sikuti amangogwirizanitsa njere za ceramic panthawi yobiriwira. Zili pafupi kugwa molamulirika panthawi yowombera kuti akhazikitse mphamvu yomaliza ndipo, movutikira, kuwongolera kusungunuka mu bafa ya caustic kenako. Ma cores ena opangidwa ndi silika amagwiritsa ntchito chomangira chomwe chimasiya gawo losalimba, lagalasi, zomwe zimapangitsa kuti zisawonongeke. Luso lenileni ndi kupanga zinthu zomwe zimakhala zamphamvu zokwanira kuti zisamamangidwe ndi kutsanulira zipolopolo, koma zimakhala zofooka kuti zichotsedwe popanda njira zamakina zomwe zingawononge makoma opyapyala.
Apa ndipamene zokumana nazo zokhala ndi ma aloyi enieni zimalipira. Kugwira ntchito ndi zitsulo zopangidwa ndi nickel, mwachitsanzo, mumaphunzira kuti ali ndi mitundu yayitali yolimba komanso kusungunuka kwakukulu. Pachimake pamafunika mphamvu zotentha kwambiri kuti zitsulo zisamalowe ndi kukokoloka kwa nthawi yayitali. Pachimake pazifukwa zambiri zitha kutsukidwa, ndikusiya malo owoneka bwino amkati omwe amapha kutuluka kwa mpweya mugawo la turbine. Ndikulephera mwakachetechete - mumangowona panthawi ya X-ray kapena kuyezetsa magazi.
Kupanga: Kumene Chiphunzitso Chimakumana ndi Foundry Floor
Mitundu ya CAD ndi yabwino. Cores ayi. Kusiyana kwakukulu kuli mu ngodya zolembera ndi chithandizo. Opanga nthawi zambiri amafuna zero zolembera zamkati kuti apititse patsogolo mphamvu ya aerodynamic kapena hydraulic. Koma pachimake ndi chinthu chakuthupi chomwe chiyenera kuchotsedwa pakufa kapena kukanikizidwa mu chida. Tinalimbana ndi zimenezi kwa zaka zambiri. Kunyengerera nthawi zambiri kumakhala kocheperako, mwachitsanzo 0.5 mpaka 1 digiri, kuphatikizidwa ndi kugwiritsa ntchito bwino zisindikizo zapakatikati-zowonjezera zomwe zimapeza ndikuzikika pachimake panjira ya sera komanso pambuyo pake chipolopolo.
Ndikukumbukira kamangidwe kake kovutirapo kotulutsa mafuta azamlengalenga. The maziko a ceramic anali ndi mikono ingapo yopyapyala, yokhala ndi cantilever. Poyerekeza, inali yokhazikika. Pochita jekeseni wa chitsanzo cha sera mozungulira, kupanikizika kunayambitsa kusokonezeka. Chotsatira? Kusiyanasiyana kwa makulidwe a khoma kuposa momwe zimakhalira. Kukonzekera sikunali koyenera bwino; inali kukonzanso zitseko zojambulira phula ndikuwonjezera zogwiriziza zanthawi yochepa (kenako zidachotsedwa pogayidwa) kuti zimangirire pachimake panthawiyi. Idawonjezera mtengo ndi sitepe, koma idapulumutsa gawolo. Uwu ndi mtundu wa kuponya ndalama nuance simupeza m'mabuku ophunzirira.
Kumutu kwina kothandiza ndikutulutsa mpweya. Pamene chitsulo chosungunula chikudzaza m'bowo, mpweya womwe uli mkati mwake uyenera kutuluka. Ngati sichoncho, kupanikizika kumbuyo kumalepheretsa kudzaza kwathunthu, kapena gasi amatsekeka poponya. Timabowola timabowo tating'onoting'ono m'malo osafunikira kwenikweni, koma kuyika kwawo ndi luso. Zambiri zimafooketsa pachimake; zochepa kwambiri zimayambitsa zolakwika. Ndi chigamulo chotengera kuchuluka kwa ma core ndi geometry, nthawi zambiri amayengedwa kudzera m'mayesero.
Mgwirizano ndi Wopanga Katswiri
Izi sizinthu zomwe mumayitanitsa kuchokera mgulu. Ndi njira yachitukuko. Kwa zaka zambiri, takhala tikudalira kwambiri akatswiri. Kampani ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd. zimabweretsa mtengo wake pano. Ndi zaka zawo 30 chipolopolo nkhungu kuponyera ndi kuponya ndalama, amamvetsetsa ndondomeko yonseyi. Mukakambirana nawo za kapangidwe kake, sikuti amangoganiza zapakatikati paokha. Akuganiza za momwe zimagwirizanirana ndi zipolopolo zawo, ma autoclave awo otsekemera, kutsanulira kwawo. chitsulo chosapanga dzimbiri motsutsana ndi a aloyi wapadera.
Ndidayendera malo awo kamodzi, ndikuwunikanso ntchito yopangira ma valve mu duplex zitsulo zosapanga dzimbiri. Pakatikati pake panali thumba lakuya, lopapatiza. Mainjiniya awo nthawi yomweyo adawonetsa vuto lomwe lingakhalepo. Lingaliro lawo linali loti asinthe pang'ono kuchuluka kwa thumba ndi kutchulanso kapangidwe kamene kamakhala kocheperako m'dera lomwelo kuti afulumizitse kusungunuka kwa mankhwala. Ndiko kuganiza kophatikizana. Zimabwera chifukwa chokhala ndi CNC makina Kuthekera m'nyumba komanso - amatha kusintha mwachangu zida za sera pachimake potengera mayankho ochokera ku mayesero oyamba, kufupikitsa kuzungulira kwachitukuko. Mutha kuwona njira zawo patsamba lawo https://www.tsingtaocnc.com.
Ubale ndi wofunikira chifukwa pambuyo popanga maziko, udindowo sutha. Pali kuyang'ana koyamba kwa nkhani, nthawi zambiri pogwiritsa ntchito CT scanning kufananitsa maziko a ceramic ndi chitsanzo cha CAD, kuyang'ana kupotoza. Kenako pali ndondomeko yokonza pakati pa jekeseni wa sera. Wopanga katswiri nthawi zambiri amapereka zosintha kapena ma protocol atsatanetsatane. Wogulitsa ma generic core amangotumiza bokosi la magawo osalimba.
Kulephera ndi Data Point
Simunagwire nawo ntchito zida za ceramic mpaka mwakhala mukulephera modabwitsa. Chimodzi chomwe chimandimamatira chinali cha makina opopera amagetsi akuluakulu. Zolembazo zinali zazikulu komanso zovuta. Iwo anawombera mokongola ndipo anapulumuka kumanga zipolopolo. Kuthira kwa chitsulo chachitsulo zidayenda bwino. Vutoli lidawonekera pakugwedeza. Pakatikati pake sichikanatuluka. Tinayesa anawonjezera leaching, matenthedwe mantha, ngakhale akupanga osambira. Zidutswa zinakhala zosakanikirana m'ndime zamkati. The post-mortem inaulula nkhaniyi: core binder idalumikizana ndi zonyansa zinazake mu dongo lomwe limagwiritsidwa ntchito pachovala choyambirira cha chipolopolo, ndikupanga mawonekedwe osakanikirana a ceramic kutentha kwambiri. Zinthu zapakati zinali zabwino. Chigobacho chinali chabwino. Koma kuphatikiza kwawo, pansi pa mikhalidwe yeniyeniyo, kunali kwatsoka.
Kulephera kumeneko kunatiphunzitsa kuti nthawi zonse tiziyesa kuyesa kufananiza - kuwombera kachidutswa kakang'ono pakatikati pa chipolopolo chomwe tikufuna kugwiritsa ntchito, kenako ndikuwunika ngati chimamatira. Ndi sitepe yosavuta kuti tsopano muyezo mu ndondomeko yathu. Zinandiphunzitsanso kuti mu kuponya ndalama, chinthu chilichonse ndi gawo la dongosolo. Simungathe kukhathamiritsa imodzi mumsewu.
Kulephera kwina kofala, kopanda phokoso ndiko kutengeka pang'onopang'ono. Pakatikati ikhoza kukhala yabwino pazidutswa 100 zoyambilira, ndiye mumayamba kuwona zomwe zikupita kumlingo wapamwamba wololera. Nthawi zambiri zimakhala zida - ufa womwe umagwiritsidwa ntchito popanga sera - kugwa. Kapena kungakhale kusintha kosaoneka bwino mumlengalenga wa ng'anjo yoyaka moto. Kugwira izi kumafuna kuwongolera kokhazikika kwa ziwerengero, kuyeza osati kungoponya komaliza, koma pachimake cha ceramic pamagawo angapo. Ndizotopetsa, koma zimalepheretsa ngozi yoyenda pang'onopang'ono.
Malipiro Osasulidwa
Zonse zikafika palimodzi, the maziko a ceramic ndicho chimene chimachititsa kuti kuponya kosatheka. Ganizirani za chibowo cha turbine chomwe chili ndi ngalande zozizirira bwino kwambiri zomwe zimatsata mizere ya mpweya. Palibe njira ina yomwe ingathe kukwaniritsa geometry yamkati ngati-cast. Phindu silimangopanga malo opanda kanthu; ndi kupanga njira yoyendera yokonzedwa bwino yomwe imalola injini kuthamanga kwambiri, mogwira mtima. Ndiko komwe mtengo wokwera wopangira ndi kupanga ma coreswa ndi oyenera.
Kwa kampani ngati Mtengo wa QSY, omwe ntchito yawo imachokera ku mafakitale chitsulo chachitsulo zigawo kuti mkulu-ntchito ma aloyi opangidwa ndi cobalt, teknoloji yaikulu ndi mlatho pakati pa misika iyi. Mfundo ndi zofanana, koma kuphedwa sikelo mwatsatanetsatane ndi zinthu sayansi. Kutha kuyang'anira sipekitiramu pansi pa denga limodzi ndizomwe zimalekanitsa malo ogulitsa ntchito ndi mnzake weniweni wa uinjiniya.
Chifukwa chake nthawi ina mukadzayang'ana pakupanga ndalama zovuta, kumbukirani msana wosawoneka mkati. Kuti maziko a ceramic anayamba ngati phala, kuumbidwa, kuwotchedwa, kugwiridwa, kuzunguliridwa ndi phula, kupaka, kuwotchedwanso, kumizidwa muzitsulo zosungunula, ndipo potsirizira pake kusungunuka. Kukhalapo kwake konse ndikuchita kwakanthawi kolondola, kumangotsala pang'ono pang'ono. Kulondola kumeneko ndi theka la nkhondo yopanga kuyimba komwe sikuli kwabwino, koma koyenera kuwuluka, kuyika-giredi, kapena kofunikira kwambiri. Sichimangokhala chosungira malo.
