Apo mainjiniya anotsanangura mativi esimbi akanyatsonaka zvemavharuvhu ehydraulic, pombi dzepombi, kana mawinch shafts—kunyanya pasi pekumanikidzwa kukuru, kupfeka kwakanyanya, kana ngura—haadi chete mutengesi. Vanoda a mim simbi jekiseni molding process fekitori iyo inonzwisisa hunhu hwesimbi, kugadzikana kwedimensional, uye maitiro ekutadza kushanda-kwete chete kushivirira padhirowa.
Isu takaona mapurojekiti akawanda achimira padanho reiyo prototype nekuti mugadziri akasarudzwa akabata MIM se "imwe nzira yekuumba." Muchokwadi, MIM yakabudirira yemishini-yakakosha zvikamu zvinoda kubatanidzwa kwakasimba pakati pekusarudza kwehupfu, binder kuumbwa, debinding kinetics, sintering profil control, uye post-sinter machining. PaQINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Tinobata chikamu cheMIM chega chega sechigaro checobalt-nickel alloy valve: imwe misstep mukudzora kabhoni panguva yekupisa inogona kukonzera microcracking pasi pe300-bar cyclic loading. Ndosaka nzvimbo yedu inoenderana neISO muQingdao isingabudisi kubvisa kana kunyunguduka - isu pachedu izere kupisa kutenderera, kubva pa650 ° C catalytic debind kusvika 1280 ° C vacuum sintering ine chaiyo dova-yekutarisa.
Vatengi vazhinji vanofuratira chisungo chakakomba: MIM inokunda pakuoma-mambure-asi mukati memiganho yakaoma yejometri. Kukora kwemadziro kunofanirwa kugara pakati pe1.5 mm ne8 mm. Aspect ratios pamusoro 6:1 ngozi density gradients. Undercuts? Zvinogoneka-asi chete neinodonha ceramic cores, kwete yakajairika tooling. Isu takabatsira vatengi kugadzirisazve AMS 5387 cobalt alloy pombi zvikamu kubvisa zvakapinza mukati meradii, kucheka sintering kukanganisa ne40% uku uchichengetedza kuyerera-nzira kuperera. Izvo hazvisi zvekufungidzira. Ndizvo zvinoitika kana wako mim simbi jekiseni molding process fekitori inomhanyisa 120+ MIM mijenya pagore pane aerospace-giredhi feedstocks-uye inoisa yega yega shrink mwero, warpage vector, uye density kutsauka pabatch.
Hezvino izvo zvinopatsanura chaiyo MIM kubva kune commodity MIM:
- Material traceability inotanga hupfu husati hwapinda muhopi: Isu tinopa yakasimbiswa gasi-atomized CoCrMo uye T800 alloy poda ine yakazara PMI mishumo-uye simbisa okisijeni yemukati, particle size distribution (D50 = 8.2–9.6 µm), uye inooneka density batch-by-batch.
- Kubhadhara hakuna kuverengerwa nguva - kunotariswa: Panzvimbo peyakagadziriswa soak durations, isu tinoteedzera chaiyo-nguva kurasikirwa kwemazhinji kuburikidza ne gravimetric sensors. A 0.3% residual binder inokonzeresa otomatiki kugadzirisa-nekuti kubviswa kusina kukwana kunokonzera kuputika; over-debinding inokoka kutsemuka.
- Sintering profiles ine chikamu-chaiyo, kwete choto-chaiyo: Imba yepiston pombi humburumbira inowana rampu inononoka kusvika 800–1000°C pane mutete-chikamu nozzle. Isu tinogadzirisa nguva dzekugara zvichibva pane thermal mass modelling-kwete master chart.
- Post-sinter geometry haigone kutaurirana: Chese chikamu cheMIM chinoongororwa neCMM zvichipesana neGD&T callouts-kwete chete zviyero. Isu tinoyera flatness panzvimbo yekuvharisa kusvika ±1.2 µm, cylindricity pamajenari eshaft kusvika ku0.8 µm, uye kushata kwepamusoro (Ra) panzira dzemvura kuenda ku ≤0.4 µm-yakasimbiswa neoptical profilometry.
Vamwe vanogona kupokana kuti CNC machining inoburitsa zvirinani kupfuura MIM. Chokwadi - kune ma geometries ari nyore. Asi edza kubata ± 0.015 mm concentricity pane mashanu coaxial bores mune imwechete 316L Stainless simbi pombi hwaro, imwe neimwe iine tambo dzemukati uye muchinjika-wakacherwa lubrication ports. Kugadzira icho chikamu chinoda setups matanhatu, matatu ekugadzirisa shanduko, uye isingadzivisike yekushisa kudonha. Iyo MIM vhezheni? Imwe yegirini chikamu, imwe sinter, imwe yekupedzisa-kutendeuka kushanda-uye 22% yakaderera mutengo wakakwana pamavhoriyamu ari pamusoro pe500 pcs / gore. Isu tinozviratidza: kota yapfuura, takaendesa 1,200 T800 alloy centre shaft rollers yeinjiniya mota winch system. Yese yakapfuura 100% inoshanda mutoro wekuyedza pa18,500 N axial simba-zero rework.
Kuvimbika ikoko kunobva mukubatanidza kwakatwasuka kwaunogona kuona. Nzvimbo yedu haingori maMIM mashini uye sinter mavira-asi zvakare chaiwo CNC nzvimbo inokwanisa kuomesa-kutenderedza sintered zvikamu zveCoCr pa85 HRC, mahovhoni ekupisa anoiswa ku ± 2 ° C, uye mitsetse yekufambisa inoenderana neASTM A967. Kana mutengi akatumira dhirowa yeplug yeAMS 5387 ine maburi mapofu uye zviso zvakasimwa zvakasungwa, isu hatibvunze "Unozvikwanisa here?" Tinobvunza kuti: "Ndeipi mamiriro ezvinhu akaipisisa-kushungurudzika? Chii chinotarisirwa hupenyu hwebasa? Ndeipi nzira yekukundikana inoita kuti urambe wakamuka?" Ipapo isu tinosarudza iyo yakakwana feedstock, kutevedzera sintering kukanganisa muSimufact Additive, kuvaka mold neyakaomeswa H13 simbi uye conformal kutonhora nzira, uye kukiya mukuita maparamita pamberi pekutanga kupfura.
Kana uri kuongorora a mim simbi jekiseni molding process fekitori, svetuka mabhurocha anopenya. Bvunza: (1) sintering lots marekodhi anoratidza density mutsauko pane imwe nguva yekugadzira, (2) CMM inoshuma ichienzanisa as-sintered vs. yapera geometry pachikamu chakafanana nechako, uye (3) umboo hwezvinhu zvitupa zvegiredhi yako chaiyo alloy-kwete chete "ISO 13322-2 inowirirana poda." PaQINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., magwaro iwayo haana kuvharwa mubhabhineti yemafaira. Ivo vakanamatira kune yega yega PO, yakagadziridzwa munguva chaiyo, uye yakagovaniswa pamberi pekushandisa mvumo. Nekuti kunyatsoita harisi dhipatimendi. Ndiko kugadzika kwacho.
