Ukanzwa 'metal poda jekiseni molding' kana MIM, kukwirira kwacho kunowanzo kuve kwezvimiro zvakaomarara, mavhoriyamu akakwira, uye mashiripiti emumbure. Asi ndanga ndakatenderedza zvikamu zvinobva pamutsetse wekubvisa uye izvo zvinopinda mugungano rekupedzisira, ndagara ndichinzwa kuti nyaya chaiyo haisi vimbiso yebhurocha rinopenya. Iri mune gritty kushivirira inobata pagiya riri pasi pe10mm, kana kurwisa kukanganiswa kwe sintering mune refu, nhete yekuvhiya chiridzwa chikamu. Vazhinji vanoitora sekuchinjana kwakananga kwemachining kana kuisa mari, inova nzira yekukurumidza kuenda kune yakundikana yekusimbisa batch. Chokwadi ndechekuti, MIM inogara mune yayo niche-inoshamisa ine simba kana iwe uchinzwisisa mutauro wayo wekudyisa, simba rakasvibira, uye sintered density, uye inozivikanwa kusaregerera kana iwe usingaite.
Iyo Alloy Haisi Ingori Yakatsanangurwa Sheet
Iwe unowana kudhirowa kudana 17-4PH isina tsvina. Standard, handiti? In simbi poda jekiseni kuumba, ndipo panoonekwa muti wekutanga wesarudzo. Iyo poda morphology - spherical, padyo-spherical, satellite-yakazara - inokanganisa zvakananga kuti binder inonyorovesa sei, izvo zvinozoraira viscosity yechipfuwo chako. Ndakaona mapurojekiti achimira nekuti hupfu, ukuwo hwemakemikari, hwaive nehusope hwepombi hwakagadzira nyaya dzekuumba, zvichitungamira kumavoids aingoonekwa mushure mekunyura. Hazvisi zvemakemikari chete; zviri maererano nemaitiro emuviri weiyo chaiyo batch yehupfu kubva kumutengesi.
Apa ndipo panokosheswa nhoroondo yekushanda kwesimbi yakakura. Kambani yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nemakumi emakore ekukanda uye CNC machining, vaizowana izvi intuitively. Vanoziva kuti zvinhu hazvisi chitupa chete; hunhu. Chiitiko chavo neakakosha alloys mukudyara kwekudyara, senge nickel-based, inoshandura kunzwisiso yakadzama yekuti maalloys akafanana anogona sei kupera uye kuchinjika panguva yeMIM sintering. Kuti ruzivo rwekuchinjika igoridhe.
Uye tichitaura nezve sintering, mamiriro ekunze ndizvo zvese. Chikamu che316L chinoda kumira zvakanaka kwecorrosion chinogona kuparadzwa nemhepo ine kabhoni-rine zvishoma, kugadzira chromium carbides uye kuuraya kufambisa kwayo. Hausi kungobika chikamu; urikunyatso gadzirisa a solid-state diffusion process. Iro curve yevira, dova, kuyerera kwegasi-chimwe nechimwe chinosiya chigunwe pane yekupedzisira microstructure. Idanho vazhinji vatsva vanorerutsa, vachifunga kuti kushanda nesimba kunopera mushure mekuumba.
Kusunga: Muchengeti Wegedhi Akanyarara
Dai ndaifanira kunongedza kune chimwe chikamu uko kwakawanda prototyping kuedza kwakatarisana-chirimwa, inosungirira. Inononoka, ine tsvina, uye inonzwa sepateni yekubata. Asi mhanyisa thermal debind cycle kuti uchengetedze nguva, uye unobva waita kuputika kana kutsemuka sezvo binder ichiedza kubuda nekukurumidza kupfuura mapores anogona kuvhurika. Icho chidzidzo chakadzidzwa nenzira yakaoma. Chikamu chegirinhi mushure mekuumbwa chine uhwu hwekunzwa kwakasimba, asi chinonyanya kusungirira chakabata izvo zvimedu zvesimbi mune isina kusimba truce.
Catalytic debinding kune dzimwe feedstocks imwe mhuka. Zvinoda maasidhi chaiwo uye kudzora. Mari yekuseta uye kubata kunoita kuti isanyanya kuwanda kumabhechi madiki, ayo anosundira vanhu kunzira dzekupisa. Iwe unofanirwa kugadzira chikamu chine yunifomu yemadziro ukobvu kubva pakutanga, kwete sekufunga kwekupedzisira, kubvumira kunyange binder kubviswa. Iyo gobvu hubhu padivi pekatete flange iresiphi yekusimbisa kushushikana uye kutadza panguva ino.
Ndinoyeuka chikamu chidiki chekubatanidza, pamwe magiramu mashanu, chakaramba chichitsemuka. Magadzirirwo acho aive nembabvu inoyevedza yaive yakati kurei. Yakanga isiri nyaya inoshanda, asi mukubvisa, yaiita sedhamu. Isu taifanira kugadzirisa iyo thermal ramp profile, tichiwedzera maawa kutenderera, kungoitira icho chimwe chete. Ndicho chokwadi-chikamu dhizaini chinoraira maitiro sekunge maitirwo anoraira chikamu.
Iko MIM Chokwadi Inorova Machining & Casting
Ngative anoshanda. Kune bhuraketi rakareruka rine maburi matatu, CNC machining kana kutodhinda inohwina pamutengo nguva dzese. Nzvimbo inotapira ye simbi poda jekiseni kuumba ndicho chikamu chinoda akawanda machining setups, chechipiri mashandiro, kana ane geometries ayo anongove asingagoneke kubva kune yakasimba stock. Funga nezvekanhu kadiki diki kemabhonzo ane ma organic curves uye undercuts, kana chikamu chepfuti chine machanera emukati akabatana.
Uku ndiko kupindirana nenyika yeQSY. Vanodaro shell mold casting uye Investment casting. Kune zvikamu zvakakura, zvisinganyanyi kuoma kunzwisisa mumavhoriyamu akakwirira, kukanda ndimambo. Asi kana iwe uchidzika pasi kune zvikamu zviri pasi, toti, zana magiramu, ane ruzivo rwunoda ± 0.3% kushivirira se-sintered, MIM inotanga kudhonzera kumberi. Hakusi kukwikwidzana; ndiyo portfolio. Mugadziri anopa zvese anonzwisisa kuti ndechipi chishandiso chekushandisa pabasa ripi. Chikamu chekudyara-chakakandwa chingada kupedzisa CNC, nepo chikamu cheMIM chakanyatso itwa chingangoda imwe chete yakakosha pasi kana gomba rakadzokororwa.
The material consistency ndeimwe kukunda. Paunotanga nehomogenous feedstock, iyo sintered chikamu isotropic mune yayo mechaniki zvivakwa. Hapana kuyerera kwezviyo senge mukugadzira, hapana njodzi yekusagadzika shrinkage cavities senge mukukanda kana geji risina kukwana. Kune chikamu chiri kutarisana ne-multi-directional stress, iyi ndiyo mukana mukuru wekugadzira.
Iyo Tooling Mindset: Haisi Plastic Mold
Uyu musungo wekirasi. Mainjiniya ane majekiseni epurasitiki ekuumba ruzivo anotarisa paMIM uye funga, Tinogona kuzvishandisa nenzira imwechete. Iyo shrinkage ndiyo inouraya musiyano. Plastic shrinkage ingangoita 0.5-2%. MIM sintering shrinkage yakakura 15-20%, uye haina kunyatso mutsara. Iwe uri kugadzira dhizaini rekushandisa iro rakanyanya vhezheni yakasimudzwa yechikamu chekupedzisira, asi iyo yekuyera chinhu haina kufanana pamativi ese. Izvo zvinoenderana neiyo particle kurongedza panguva yekuumbwa uye kuzvidzora panguva yekupisa.
Kupfeka kwemidziyo kwakasiyana zvakare. Iyo abrasive simbi poda feedstock inobvisa simbi nekufamba kwenguva, kunyanya mumakona akasimba uye matete masuwo. Unoda simbi dzakaomarara, kukwenenzverwa kwakakodzera, uye dzimwe nguva, iwe unogadzira hupenyu hupfupi hwematurusi kubva pakutanga kwepamusoro-vhoriyamu kumhanya, kuronga kugadzirisa. Iyo capital cost inoda kubhadharwa nemazvo. Chishandiso chakachipa chinoburitsa zvakachipa, zvisingaenderane zvikamu zvinotadza QC, kutambisa zvese zvinhu uye mutengo wekuita pasi.
Kupinza mhepo kunonyanya kukosha zvakare. Hausi kungobata nemhepo; uri kusangana nemhepo ichiedza kutiza nepamubhedha wehupfu. Mapombi asina kukwana anotungamira mukutsva, kupfurwa mapfupi, uye kusiyana kwedensity. Ndechimwe chezvaunodzidza iwe chete nekuona mazana mashoma epfuti uye correlating mold flow simulations (iyo inonyengera yehupfu) ine chaiyo sintered hurema.
Kubatanidzwa uye Iyo Chaiyo-World Supply Chain
Saka wagona kuita basa racho. Iwe unogona kugadzira yakanaka, in-spec MIM chikamu. Zvino chii? Kashoma kupinda muvacuum. Inounganidzwa. Apa ndipo panosangana mugwagwa. Iyo MIM-yakagadzirwa giya ingangoda mesh neCNC-muchina shaft. Iyo yekumusoro kupedzisa kwese-sintered MIM chikamu yakanaka, asi kwete nguva dzose yakakwana yakakwana yechisimbiso chine simba. Iwe unogona kuda kudonha kwechiedza, kupera kwekuzunguza, kana yakasarudzika plating.
Iri ndiro simba remupi webasa rakazara. Tarisa muenzaniso weQSY: vanayo CNC machining mumba. Izvi zvinoreva kuti chikamu cheMIM chinogona kucheneswa, wobva wananga kuchiteshi cheCNC kuti chibhorani chakakomba chibatwe mukushivirira kwakasimba, kana kuti datum face igayiwe kuti igadziriswe. Uku kusanganisa kwakamira kunogadzirisa dambudziko rekare rekubvisa ruoko pakati peMIM imba nechitoro chemuchina, uko kushivirira kurongedza uye kunonoka kuronga kunouraya pundutso.
Hunhu hutongi hunodawo maonero aya akabatanidzwa. Iwe hausi kungoita CMM cheki pane iyo sintered chikamu. Uri kuita density cheki (kazhinji kuburikidza neArchimedes' nzira), micrograph ongororo yeporosity, uye mechaniki kuyedza. Iyo data kubva kune iyi bvunzo inodyisa kumashure kune sintering cheto ma paramita uye kunyangwe kune feedstock yekusanganisa batch. Iyo yakavharwa-loop system, uye kutyora icho loop nekuburitsa nhanho dzakakosha kazhinji kunotyora kuwirirana.
Pfungwa dzekupedzisira: Maitiro, Kwete Panacea
Kupedzisa izvi, simbi poda jekiseni kuumba harisi bara remashiripiti. Iyo inodakadza, capital-intensive process iyo inopa mubairo zvakadzika zvinhu zvesainzi kunzwisisa uye nekuchenjera maitiro ekutonga. Kukosha kwayo hakusi mukuve yakachipa sarudzo, asi mukuva iyo yega sarudzo inogoneka kune imwe kirasi yezvikamu. Makambani anobudirira nazvo, mukuona kwangu, ndeaya asingazvione semanomano akazvimirira, asi sechishandiso chimwe mune yakazara dhizaini yekugadzira-sekuti QSY inomira sei kukanda kwayo, machining, uye nekuwedzera, inogona kuita MIM pamwe chete.
Ramangwana? Iri muhupfu hwakatsetseka kuitira kupedzisa kwepamusoro pepamusoro, mukukurumidza kubvisa denderedzwa, uye mune yakanyanya kusimba simulation software. Asi dambudziko repakati rinoramba rakafanana: kutonga rwendo rwehupfu hwesimbi kubva kune yakasununguka, inoyerera feedstock kune dense, yakakwirira-kutendeseka metallurgical chikamu. Nhanho yega yega, kubva pakugadzira mold kusvika kuchoto, chinongedzo chetani. Uye sekuziva kunoita chero nyanzvi, cheni inongosimba senge link yayo isinganyatsonzwisisike.
Indima inonakidza chaizvo nekuti haina kumbogadziriswa. Chese chikamu chitsva geometry, chese chitsva alloy chikumbiro, ipuzzle nyowani. Uye ndizvo zvinoita kuti irege kungova imwe mutsara wekugadzira-inogara iri chikamu chesainzi, chikamu chehunyanzvi, uye yakawanda yakawanda yechitoro-pasi-kugadzirisa matambudziko.
