Kana vanhu vazhinji vachifunga nezvehupfu metallurgy (PM), vanosvetuka vakananga kudzvanya uye kunyura. Kugadzirwa kwehupfu chaiko kunowanzotorwa sedanho rekutengesa, chimwe chinhu chaunongotenga. Ndiko kutarisisa kunodhura. Hunhu hwehupfu — morphology yahwo, kupatsanura saizi yechidimbu, kuyerera, uye kuzara kunooneka — zvakavharirwa muno chaimo. Iwe haugone kudzvanya kana kunyudza nzira yako kubva muhupfu hwakaipa. Inotsanangura zvese zvinouya mushure.
Iwo Core Nzira uye Chokwadi cheSarudzo
Iwe une nzira huru: atomization yesimbi, kuderedza kemikari yezvinhu zvakaita se tungsten, uye nzira dzemuchina sekugaya. Mvura atomization ihombe kune akawanda ferrous hupfu-inodhura-inoshanda, inokupa iyo isina kujairika, zvishoma oxidized particles anobatana zvakanaka. Asi kana iwe uchida spherical poda yemhando yepamusoro-inoshanda senge yekuwedzera kugadzira kana simbi jekiseni molding (MIM), gasi atomization ndiyo yega mutambo chaiwo muguta. Iyo inert gasi, kazhinji argon kana nitrogen, inopwanya rukova rwekunyunguduka kuva pedyo-akakwana mativi. Iko kusvetuka kwemutengo kwakakosha, asi ndizvo zvakaitawo kuita.
Heino snag inoshanda yatakamhanyira mairi nesimbi isina tsvina 316L batch yeMIM. Iyo spec yakadana D90 pasi pe22 microns. Iyo gasi atomized poda yakadzoka ichiita seyakakwana pasi peSEM, mativi akanaka. Asi kuongorora sieve kwakaratidza muswe wakakora wefaindi-zvimedu zviri pasi pe10 microns. Ndiro dambudziko rekuita debinding; inoshandura kuyerera kwecapillary, inogona kutungamirira kukuputika. Mutengesi akanga aita kuti gasi riite kuti rirove goho repamusoro, nekusaziva achigadzira faindi dzakawanda. Yakanga isiri kunze kweiyo, asi yakapotsa yaparadza dhizaini yekugadzira. Yakandidzidzisa kugara ndichikumbira iyo yakazara PSD curve, kwete chete iyo D10, D50, D90 mapoinzi.
Apa ndipo pane hukama hwenguva refu nevanovaka uye nyanzvi dzezvinhu. Kambani yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nemakumi emakore ekukanda uye alloys, anonzwisisa izvi kubva kune rumwe rutivi. Havasi vagadziri vehupfu, asi ruzivo rwavo rwakadzama rwemaitiro alloy-kunyanya iwo anonyengera nickel-based kana cobalt-based superalloys-inozivisa zvavanoda kubva kune avo vanovapa hupfu kune dzinotevera maitiro sekukanda mari yepedyo-neti-maumbirwo ezvikamu. Kuchena kwehupfu uye kusimba kunokanganisa zvakananga mhedzisiro yavo yekukanda goko.
Beyond the Data Sheet: Kubata uye Zvakavanzwa Variables
Chitupa chekuongorora inzvimbo yekutanga, kwete nyaya yese. Inooneka density uye kuyerera mwero (inoyerwa neHoro flowmeter) yakakosha pakuzadza kufa mumashini otomatiki. Hupfu hunogona kuve nePSD yakakura asi kuyerera kwakashata nekuda kwemasetiraiti particles-ayo madiki mativi akabatiswa kune akakura kubva mukudhumhana mushongwe yeatomu. Vanoita sezvibatiso zvidiki.
Kubata post-kugadzirwa nderimwe gomba dema. Ndakaona hupfu hwakakwana hwakadzikiswa nekusachengetedzwa zvakanaka. Kutora unyoro muhupfu hweferrous ndeyemhando yepamusoro. Kunyangwe mumidziyo yakavharwa, kana imba yekuchengetera isiri kudzorwa nemamiriro ekunze, unowana oxidation yepasi inokuvadza kusimba uye simba rekupedzisira. Zvezvinoita zvekushandisa senge titanium kana aruminiyamu alloys, ndiyo imwe nhanho yese yekuchengetera-inowanzoda argon backfilling. Mutengo wehupfu chinhu chimwe; mari yekuchengetedza mamiriro ayo kusvika yarova kufa ndeimwe.
Dzimwe nguva, mhinduro ndeyekusanganiswa. Takambove nechikamu chaida simba rakasvibira rakakura asiwo geometry yakaoma. Hupfu hwehupfu hwakanga husiri kucheka. Takapedzisira tasanganisa mabheji maviri kubva kune imwechete base alloy asi aine mashoma akasiyana saizi kugovera-imwe yakakora yekuyerera, imwe yakatsetseka yekusunga. Iko kusanganisa nzira pachayo kwakava kwakakomba; kusanganisa kaviri-koni maringe neV-kusanganisa kwakapa kwakasiyana homogeneity, zvichikanganisa chikamu-kune-chikamu kuenderana. Yakanga iri fiddly, inopedza nguva maitiro yawaisazomboona pane glossy PM bhurocha.
Iyo Special Alloys Conundrum uye Inoshanda Sourcing
Apa ndipo panosangana mugwagwa. Kushanda nesimbi yakajairwa, mhangura, kana simbi isina hupfu hwakati twasu. Iyo yekugovera cheni yakakura. Asi kana dhizaini yako ichida yakakwira-tembiricha nickel-based alloy seInconel 718, kana kupfeka-inodzivirira cobalt-based alloy seStellite 6, zvese zvinoshanduka.
Iyo yekunyungudutsa tsika isati yasvika atomization yakakosha. Chengetedza zvinhu, gasi remukati (okisijeni, nitrogen), uye homogeneity ye master alloy zvese zvinodhindwa pahupfu. Kuparadzaniswa kuduku muingot kunogona kutungamirira kune nzvimbo dzinopisa kana kusapindirana sintering gare gare. Kune machining nyanzvi yakadai QSY, uyo anozoita CNC machining paSintered PM zvikamu, kuomarara kusingaenderane kana kuvepo kweakaomarara, brittle zvikamu kubva mukusachena kudzika kunogona kuparadza zvishandiso. Vanoda zvinofungidzirwa, zvinhu zvakafanana kumuchina kune kushivirira kwakasimba, izvo zvinodzosera mutoro kumashure pakugadzirwa kwehupfu kuti upe kuenderana kwakazara.
Kutsvaga poda idzi kunonetsa. Iwo mavhoriyamu ari pasi, iyo inotungamira nguva yakareba. Iwe unowanzo kutarisana zvakananga neguyo rinogadzira alloy bar stock kana neatomizer yakasarudzika. Haisi kutenga kunze-pasherufu. Iwe uri kunyanya kubatanidza kugadzirwa kwezvinhu. Ini ndinorangarira purojekiti yechisimbiso chemuchadenga uko gwaro reupfu rakareba mapeji gumi nemaviri. Zvainzwa zvakanyanyisa panguva iyoyo, asi zvakadzivirira kukundikana pasi pemutsara.
Kukundikana uye Zvidzidzo Zvavanonyora
Iwe unodzidza zvakawanda kubva muboka rinokundikana pane kubva zana rinopfuura. Pakutanga munguva yangu, takava nekumhanya kwekuneta-kwakakosha magiya akatanga kutadza mukuyedza. Kutyoka kwepamusoro kwakaratidza kuchena, kukundikana kwe intergranular. Isu takatarisa zvese: kudzvanya kumanikidza, sintering tembiricha uye mhepo, kupisa kurapwa. Zvese kune spec. Pakupedzisira, takadzokera kunzvimbo yehupfu ndokuita dive yakadzika. Acid digestion ongororo yakaratidza yakakwira zvishoma pane yakajairika nitrogen yemukati. Iyo atomizer yakanga yashandisa sosi yeargon ine yakakwira nitrogen tsvina yebatch iyoyo. Kuwedzera kudiki ikoko kwenitrogen yepakati kwakamisa miganhu yezviyo zvakakwana. Iyo poda yaive mune spec kemikari, asi iyo gasi yekuongorora spec yaive yakawandisa. Takaisimbisa, uye dambudziko racho rakapera. Ikozvino, ndiri kushamisika nezve gasi zvitupa zveatomization gasi pacharo.
Chimwe chidzidzo chaive chekukwira kumusoro. Hupfu hunoshanda zvakakwana mu50kg batches ye prototyping inogona kuita zvakasiyana mu2-ton yekugadzira yakawanda. Mwero wekutonhodza mushongwe yeatomization inogona kusiyanisa, zvichitungamira kune zvisizvo shanduko mune microstructure. Iwe unofanirwa kusimbirira pamutyairi wendege ari pedyo-yekugadzira chiyero usati wasaina. Inodhura uye inotora nguva, asi yakachipa pane kurangarira kuzere.
Iko Izvi Zvese Zvinobatanidza: Iyo Yakabatanidzwa Supply Chain
Izvi zvinondiunza kune imwe pfungwa yakakura. Kugadzirwa kwehupfu harisi danho rega. Ndiyo yekutanga chinongedzo muketani inosanganisira kuumba, sintering, uye kazhinji sekondari mashandiro senge CNC machining kana kurapwa kwepamusoro. Mhedzisiro yakanaka inouya kana paine mhinduro pachetani yese.
Kambani inobata zvese zviri zviviri kukanda kwepamberi (shell mold casting, Investment casting) uye kunyatsogadzira, senge yaunowana pairi https://www.tsingtaocnc.com, inomiririra kubatanidzwa uku. Vanoona kuguma-kushandiswa kwekuita. Kana chikamu chavanoshandisa kubva kuSintered PM isina chinhu chiine hupenyu husina kunaka hwekushandisa kana kusatarisika kugadzikana, iyo mhinduro inoda kudzokera kune sinterer, uye pakupedzisira kumugadziri wehupfu. Yaiva oxide kuiswa muupfu here? Chikamu chegomba chakadonha panguva yekupisa? Iyi yakavharwa-loop nzwisiso ndiyo inoparadzanisa zvikamu zvakanaka kubva kune yakavimbika, yepamusoro-inoshanda zvikamu.
Saka, paunotarisa chikamu chePM chapera, hausi kungotarisa simbi yakatsikirirwa uye yakasvibiswa. Iwe uri kutarisa nhoroondo yekunyunguduka, iyo fizikisi yeatomization nozzle, iyo Logistics yekubata, uye nhevedzano yeanodzorwa kukanganisa. Hupfu ndiyo DNA. Uye kufanana neDNA, chikanganiso chiduku, chisingaonekwi chinogona kuziva magumo emuviri wose. Kuzvigadzirisa kushoma nezve tekinoroji inopenya uye zvimwe nezve kutarisisa kusingadzoreki kune zvakadzama, zvinodzidzwa kazhinji kuburikidza neyakakunda-yakakunda ruzivo.
