Kana mainjiniya achitsanangura kukanda kwejecha kune yakakwirira-chaiyo simbi zvikamu, ivo havasi kungosarudza maitiro-vari kuita kuzvipira kune kugadzikana kwedimensional, microstructural consistency, uye kuvimbika kwekushanda pasi pekushushikana kwepasirese. Ndosaka"Precision Sand Casting fekitari” haisi kushambadzira jargon. Chikumbaridzo chehunyanzvi chinosangana mashoma-kunyanya kana achibata cobalt-nickel alloys, AMS 5387 components, kana asiri-standard pombi dzimba dzinoshanda pa350 bar ne220°C.
Nei Kukandwa Kwejecha Kwakajairwa Kunotadza Iko Kunodiwa Kunoda Kubudirira
Takazviona kakawanda: vatengi vanogashira ma castings ne ± 0.8 mm kushivirira pamabore akakosha-kungoona kuti silinda yeimba inoshatisa panguva yekupisa, kana chigaro chevharuvhu chinotadza kumanikidza kuyedzwa nekuda kwenzvimbo yeporosity padyo nenzvimbo yegedhi. Kukandira jecha kwakajairwa kunoenderana nekupfeka kwepateni, manyorerwo ekumhanya kusiyanisa, uye generic binder masisitimu. Kukandwa kwejecha kwakanyatso kutsiva izvo zvinochinjika neyakadzorwa silica zviyo kugovera, thermally stable resin binders, uye chaiyo-nguva yepakati bhokisi tembiricha yekutarisa. PaQINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., mold yese yejecha inofanodururwa X-ray density mepu-uye mold chete dzinopfuura ASTM E94 Level 2 radiographic yekugamuchira nzira inoenderera mberi nekudurura.
Ichi chirango chinonyanya kukosha nepamusoro-alloy zvinhu. Cobalt-based T800 uye AMS 5387 inonyunguduka pa1,380°C. Kupisa kwavo kwekushisa kune 37% yakakwirira kudarika grey iron. A standard green-sand mold inotsemuka pasi peiyo shrinkage. Yedu chaiyo yekukanda jecha maitiro anoshandisa ceramic-yakavharwa silica molds ine enjiniya nzira dzekufambisa uye inoteedzana solidification modelling-inosimbiswa mune yega yega dhizaini inomhanya uchishandisa MAGMASOFT® thermal simulation.
Mbiru Ina Dzokururama Kwechokwadi—Kwete Kungoshivirira Kwakasimba
Tight tolerances chete haitsananguri kunyatso. Ndivo chiratidzo-kwete chikonzero. Izvo chaizvo zvinopa kudzokororwa kurongeka mumabhechi kubatanidzwa:
- Material traceability yakabikwa mu mold tag: Batch yega yega inotakura yakazara mill test mishumo, kupisa nhamba yekubatanidza, uye spectral yekuongorora logs-hapana kunze, kunyangwe kune prototypes.
- In-process metrology isati yagadzirwa: Isu tinoongorora as-cast geometry tichishandisa Zeiss DuraMax CMMs-kwete chete zvikamu zvekupedzisira. Kana iyo pombi yepiston imba ichiratidza 0.12 mm kutsauka mubore concentricity pre-machining, isu tinogadzirisa core positioning-kwete kurasa chikamu.
- Casting-machining handoff yakagadzirirwa mukuita: Mainjiniya edu anobatanidza gating masisitimu ane CNC maturusi enzira mupfungwa. Izvi zvinoreva kuti zvikwiriso zvakaiswa pazvisingakanganise 5-axis gadziriso yekumisikidza-uye dhizaini angles yakagadziridzwa kune ese ari maviri shakeout kunyatsoshanda uye post-machining pamusoro pekupedzisira.
- Kushanda kusimbiswa kusati kwatumirwa: Yese yekumanikidza valve yekukanda inopinda helium leak kuyedzwa pa1.5 × kushanda kumanikidza. Yese winch centre shaft roller inomhanyisa chiyero chekutarisa pa3,200 RPM.
Iko Precision Jecha Kukandira Kunosangana Nechokwadi Maindasitiri Kukundikana Modes
Vamwe vanogona kupokana kukanda kwekudyara kunopa kupedzisa kwepamusoro kweiyo yakaoma geometries. Asi kune zvikamu zvakaita se hydraulic cylinder housings kana oiri & gasi pombi nheyo-uko ukobvu hwemadziro hunodarika 45 mm uye nzira dzekutonhora dzemukati dzinoda kusimba-kukanda jecha kuhwina. Sei? Nekuti mari yekukanda magomba anotsemuka pasi pekuvhundutsa kwemafuta kubva kune gobvu-chikamu chinodira. Maumbirwo edu ejecha chaiwo anotora simba iroro. Takaendesa 120-kg simbi yekukanda nayo as-cast kushata kwepamusoro Ra ≤ 6.3 µm-yakasimbiswa neMitutoyo SJ-410 profilometers-kwete mushure mekugaya.
Iko kuhwina kukuru kuri mukudzora mutengo wepakati-vhoriyamu kumhanya. Mutengi muGermany aida 420 units/gore zveAMS 5387 nozzles. Investment casting yakatora $2,180/unit. Yedu chaiyo jecha rekukanda mhinduro-ichishandisa ceramic shell-coated cores uye otomatiki mold musangano-yakamhara pamadhora zviuru gumi nemazana matatu nemakumi mana. Hapana kukanganisa pakusimba kwesimba (≥1,120 MPa) kana intergranular corrosion resistance paASTM G28A.
Izvo Zvaunonyatsowana Paunodyidzana Neyechokwadi Yechokwadi Sanding Fekitori
Iwe unowana ongororo yeinjiniya-kwete kungotora mashoko. Apo pombi yeNorth America OEM yakatitumira maGD&T macallouts eimba itsva yepiston pombi silinda, timu yedu yakaratidzira zvinhu zviviri zvingangoitika: chekutanga, iyo yakatsanangurwa yechokwadi chinzvimbo kushivirira pachiteshi chegumi nemaviri-mm-diameter yaive yakaoma kupfuura zvinogoneka neikozvino core pin rigidity; chechipiri, iyo yepamusoro pekupedzisira inodiwa pane yemukati kupisa-yekuchinjisa fin inopokana neinodiwa mold kuburitsa angles. Isu takakurudzira mamwe maumbirwo edatum uye akagadziridza maekiseni ekudhirowa-kudzikisa kurambwa kwekurambwa kubva payakafungidzirwa 18% kusvika chaiyo 0.7% pamusoro pemijenya gumi nemana yekugadzira.
Iwe unowana chokwadi chekutumira-kwete fungidziro ine tariro. Kufamba kwedu kwakaonda kunosanganisira buffer-yemahara kurongerwa kweakakosha nzira mashandiro: yepakati kamuri kugona, choto kutenderera nguva, uye CMM yekuongorora slots ese akateedzerwa munguva chaiyo. Kune prototype maodha, nguva yekutungamira inotarwa pamazuva makumi maviri nemasere-kwete "zvinoenderana nekuwanikwa kwezvinhu." Nekugadzira, isu tinovimbisa ± 2 mazuva ekarenda pane zvakarongwa kutumira-kunyangwe nekunonoka kwezvinhu zvitupa.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. inoshanda se a Precision Sand Casting fekitari nekuti kurongeka ndiko kuyera kwatinoita kubudirira—kwete kubudirira. Iri mu 0.008 mm kudzokorora kweyepakati bhokisi rekumisa system. Mune ISO 17025-yakaremerwa lab inosimbisa kupisa kwese kabhoni yakaenzana isati yadirwa. Mune chokwadi chekuti 91% yecobalt alloy castings yedu inotakura pasina rework-pasinei nekushanda pamucheto we metallurgical feasibility.
Tarisa mberi: muganhu unotevera hausi kushivirira kwakasimba. Iwo maitiro akasanganiswa-senge-net-shape majecha anokandwa ane akasanganiswa akagadzirwa maficha akavakwa akananga mugomba reforoma. Ndiko uko kukanda chaiko kunomira kuve danho rekugadzira-uye inova chikamu chechikamu chinoshanda cheDNA.
