Akatswiri akamanena za kuponyedwa kwa mchenga pazigawo zazitsulo zolondola kwambiri, samangosankha njira-akudzipereka kuti azitha kukhazikika, kusasinthika kwapang'onopang'ono, komanso kudalirika kogwira ntchito pansi pa zovuta zenizeni. Chifukwa chake "Precision Sand Casting fakitale” si kutsatsa mawu. Ndi gawo laukadaulo pomwe zoyambira zochepa zimakumana - makamaka pogwira ma aloyi a cobalt-nickel, zigawo za AMS 5387, kapena nyumba zosakhala zapampu zomwe zimagwira ntchito pa 350 bar ndi 220 ° C.
Chifukwa Chake Kuponyera Mchenga Wamba Kumalephera Komwe Kumafunikira Kupambana
Taziwona mobwerezabwereza: makasitomala amalandira ma castings ndi ± 0.8 mm kulolerana pamabowo ovuta-kungopeza kuti nyumba ya silinda imasokoneza panthawi ya kutentha, kapena mpando wa valve umalephera kuyesa kupanikizika chifukwa cha porosity pafupi ndi malo olowera. Kuponyera mchenga kozolowereka kumadalira kuvala kwapatani, kusintha kwa ma ramming pamanja, ndi ma generic binder system. Kuponyera mchenga mwatsatanetsatane kumalowa m'malo mwazosinthazo ndikugawika kwambewu za silika, zomangira utomoni wokhazikika, komanso kuwunika kwenikweni kwa kutentha kwa bokosi. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., nkhungu iliyonse yamchenga imayika mapu a X-ray kachulukidwe asanatsanulidwe - ndipo nkhungu zokha zomwe zimadutsa ASTM E94 Level 2 zovomerezeka za radiographic zimayamba kuthiridwa.
Chilango ichi chimakhala chofunikira kwambiri ndi zida zapamwamba za alloy. T800 yochokera ku Cobalt ndi AMS 5387 zimasungunuka pa 1,380 ° C. Kutentha kwawo ndi 37% kuposa chitsulo chotuwa. Chikombole chokhazikika chamchenga wobiriwira chimang'ambika pansi pa shrinkage imeneyo. Njira yathu yopangira mchenga yolondola imagwiritsa ntchito nkhungu za silika zokutidwa ndi ceramic zokhala ndi njira zopumira komanso njira zotsatizana zolimba - zimatsimikiziridwa pakupanga kulikonse pogwiritsa ntchito MAGMASOFT® kuyerekezera kutentha.
Mizati Inayi Yolondola Yeniyeni—Osati Kulekerera Kolimba Kwambiri
Kulekerera kolimba kokha sikumatanthauzira kulondola. Ndiwo chizindikiro - osati chifukwa. Chomwe chimapereka kulondola kobwerezabwereza pamagulu onse ndikuphatikiza:
- Kufufuza kwazinthu zophikidwa mu tag ya nkhungu: Gulu lililonse limakhala ndi malipoti athunthu a mayeso a mphero, kulumikizana kwa nambala ya kutentha, ndi zolemba zowunikira - palibe kuchotserapo, ngakhale ma prototypes.
- Mu-process metrology musanayambe makina: Timayang'ana ngati-cast geometry pogwiritsa ntchito ma CMM a Zeiss DuraMax-osati zigawo zomaliza. Ngati nyumba ya pampu ya pisitoni ikuwonetsa kupatuka kwa 0.12 mm pakuwongolera kokhazikika, timasintha malo oyambira - osataya gawolo.
- Kuponyera-machining handoff yopangidwa munjira: Akatswiri athu amapanga makina opangira ma gating okhala ndi zida za CNC m'malingaliro. Izi zikutanthauza kuti zokwera zimayikidwa pomwe sizingasokoneze kukhazikitsidwa kwa 5-axis-ndi ma angles okonzekera bwino kuti azitha kugwedeza bwino komanso kumaliza kwapambuyo.
- Kutsimikizika kogwira ntchito musanatumize: Kuponyera valavu iliyonse kumayesedwa kukhetsa kwa helium pa 1.5 × kugwira ntchito. Winch center shaft roller iliyonse imayendetsa macheke amphamvu pa 3,200 RPM.
Kumene Kuponyera Mchenga Wolondola Kumakumana ndi Zolephera Zenizeni Zamakampani
Ena angatsutse kuti kuyika ndalama kumapereka kutha kwapamwamba kwa ma geometries ovuta. Koma pazigawo monga hydraulic cylinder housings kapena mafuta & gasi pampu maziko - komwe makulidwe a khoma amaposa 45 mm ndi njira zoziziritsa zamkati zimafunikira kulimba kolowera - kupambana kwa mchenga. Chifukwa chiyani? Chifukwa zipolopolo zopangira ndalama zimaphwanyidwa chifukwa cha kutenthedwa kwamafuta ochulukirapo. Zomwe timaumba pamchenga wathu wolondola kwambiri zimatenga mphamvuzo. Tapereka zitsulo zolemera makilogalamu 120 ndi monga-cast pamwamba roughness Ra ≤ 6.3 µm-yotsimikiziridwa ndi Mitutoyo SJ-410 profilometers-osati akupera.
Kupambana kwakukulu kwagona pakuwongolera mtengo wamayendedwe apakatikati. Makasitomala ku Germany amafunikira mayunitsi 420/chaka cha AMS 5387 nozzles. Kuyika ndalama kwatenga $2,180/gawo. Njira yathu yopangira mchenga yolondola-pogwiritsa ntchito zitsulo zokutidwa ndi zipolopolo za ceramic ndi makina opangira nkhungu - idafika pa $1,340/unit. Palibe kunyengerera pa mphamvu zamakokedwe (≥1,120 MPa) kapena kukana kwa corrosion intergranular pa ASTM G28A.
Zomwe Mumapeza Mukamayanjana Ndi Factory Yowona Yopanda Mchenga Yolondola
Mumapeza kuwunikira kwaukadaulo-osati kungobwereza mawu. Pamene kampani yaku North America pump OEM idatitumizira ma callout a GD&T opangira nyumba yatsopano yapampu ya pistoni, gulu lathu lidawonetsa zinthu ziwiri zomwe zingachitike: choyamba, kulolerana kowona komwe kwatchulidwa padoko la 12-mm-diameter kunali kolimba kuposa momwe kungatheke ndi kukhazikika kwa pini yapano; chachiwiri, kufunikira komaliza pamwamba pa chipsepse cha kutentha kwamkati kumasemphana ndi ngodya zotulutsa nkhungu. Tidapereka malingaliro amitundu ina ndikukonzanso ma angles olembera - kutsitsa kukana kukana kuchoka pa 18% kufika pa 0.7% yeniyeni kuposa maere 14 opanga.
Mumapeza kutsimikizika kwa kutumiza—osati zongoyerekeza. Kuyenda kwathu kowonda kumaphatikizapo kukonza zinthu zopanda chitetezo panjira zovuta: kuchuluka kwa zipinda zoyambira, nthawi yozungulira ng'anjo, ndi malo oyendera a CMM onse amapangidwa munthawi yeniyeni. Pakuyitanitsa ma prototype, nthawi yotsogolera imakhazikitsidwa pamasiku 28 - palibe "kutengera kupezeka kwa zinthu." Popanga, timatsimikizira ± 2 masiku a kalendala pazotumiza zomwe zakonzedwa, ngakhale zitachedwa kuperekedwa kwa satifiketi.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. imagwira ntchito ngati a Precision Sand Casting fakitale chifukwa kulondola ndi momwe timayezera chipambano, osati kupitilira. Zili mu kubwerezabwereza kwa 0.008 mm kwa dongosolo lathu loyika mabokosi. Mu labu yovomerezeka ya ISO 17025 yotsimikizira kutentha kulikonse kofanana ndi kaboni musanathire. 91% ya cobalt aloyi castings sitima popanda rework-ngakhale ntchito m'mphepete mwa kuthekera zitsulo.
Yang'anani m'tsogolo: malire otsatirawa salolera movutikira. Ndi njira zosakanizidwa-monga mchenga wapafupi ndi ukonde wokhala ndi zida zophatikizika zamakina zomangidwira mkati mwa nkhungu. Ndipamene kuponyera kolondola kumasiya kukhala gawo lopanga-ndikukhala gawo la DNA yogwira ntchito.
