Iwe unonzwa semi-solid metal casting uye mabhurocha anopenda mufananidzo wekukwana: pedyo-net-shape zvikamu, fantastic mechanical properties, shoma porosity. Asi famba uchipinda mune yekutanga yakaedza kuishandisa, uye nyaya yacho inokanganisa. Haisi imwe bara yemashiripiti; inzira inogara mufafitera rakamanikana kwazvo rekutonga, uye kuikanganisa kunodhura. Zvitoro zvakawanda zvinofunga kuti ingori nezve tembiricha, asi ndezvechokwadi nezve semi-solid metal casting slurry's thixotropic maitiro-iyo inoshamisa mamiriro ayo anoyerera semvura iri pasi pekugera asi ane chimiro chakasimba kana chakamira. Zvipikire izvozvo, uye une chimwe chinhu. Zvipotsa, uye unenge wakatarisa pabillet rezvimedu zvinodhura.
Iyo Core Idea uye Panogumburwa Vanhu
Nheyo inokosha iri nyore nokunyengera. Panzvimbo yekudurura simbi yakazara yakazara, unoshanda nealloy mune mushy, semi-solid state, kazhinji inotenderedza 30-50% yakasimba chikamu. Slurry iyi inobva yaiswa mudhishi. Pfungwa isiriyo huru? Kuti uku kungoita cooler casting. Hazvisizvo. Kugadzirira slurry ndizvo zvese. Iwe unogona kuenda iyo rheocasting nzira, kwaunotonhodza simbi yemvura munzvimbo yehafu-yakasimba uchikurudzira, kana thixocasting, kwaunotanga neyakagadzirirwa yakasimba billet uye woipisa zvakare. Rheocasting inoratidzika kunge yakananga, asi kudzora kutonhora uye kusagadzikana kuti uwane yunifomu, yakanaka globular chimiro mune slurry-ndihwo hunyanzvi. Ndakaona kuseta uko kubvongodza kwainge kwakadzimwa nekamuti kadiki, uye chikamu chakazobuda chaive nenzvimbo dzisina kusimba dzawaisatomboona kusvika pakuyedzwa kwekuneta.
Vazhinji vanofungidzira chero aluminium kana magnesium alloy ichashanda. Kwete chokwadi. Iyo alloy kuumbwa kunoda kufarira kuumbwa kwechikamu chealpha-Al munzvimbo iyoyo mushy. Zvakajairwa iA356 uye A357 aluminium, asi kunyangwe zvakadaro, zvidiki zvekutevera zvinhu zvinogona kurasa morphology. Isu takambove nebatch yeA356 ine zvishoma-kunze-kwe-spec iron yemukati. Iyo slurry viscosity yakanga isina kururama, zvichiita kuti kuzadza kunotyisa muzvikamu zvitete. Metallurgy inofanirwa kuve iripo kubva pakutanga.
Zvadaro pane mudziyo musungo. Iyi haisi standard die casting ine tweak. Iyo yekupfura kamuri uye piston system inoda kubata iyo viscous, abrasive slurry pasina kuunza mhirizhonga inoparadza chimiro. Magedhi uye vanomhanya vakagadzirwa zvakasiyana-kazhinji yakakura uye yakatsetseka kuchengetedza laminar kuyerera. Ndinoyeuka chimwe chirongwa chatakaedza kushandura muchina wekare wokukandira. Mhedzisiro yaive yakawandisa kuveura pagedhi, iyo yakaparadza chimiro cheglobular chatakashanda nesimba kugadzira, kushandura slurry kudzoka kuita dendritic, isina simba mess. Icho chaive chidzidzo chevanhu vatanhatu chekusagura makona.
Nyaya Inoshanda: Kubatanidza tsvimbo uye iyo Porosity Hondo
Ngatitaure nezve application chaiyo: yakakwirira-inoshanda mota yekubatanidza tsvimbo. Apa ndipo semi-solid metal casting inofanira kupenya-yakakwirira simba, pasi porosity, hupenyu hwakanaka hwekuneta. Takashanda pane prototype kumhanya kune motorsport mutengi. Chinangwa chaive chekutsiva simbi yakagadzirwa nesimbi yakareruka, yakakanda aruminiyamu imwe pasina kurega kuvimbika.
Mapfuti gumi ekutanga aive akanaka. Izvo zvikamu zvakabuda zvine matte, yakatsetseka pamusoro, dimensional kurongeka kwaive mukati me 0.1mm. Asi patakaongorora X-ray, takawana sporadic micro-porosity munzvimbo ye shank. Kwete gasi porosity, asi shrinkage. Nyaya yacho? Kunyangwe mune semi-yakasimba mamiriro, kudya kwakakosha. Iko kusimba kunodzorwa zvakanyanya, asi kana tembiricha yekufa isina kukwana, iwe uchiri kuwana madziva ega anoderera. Isu taifanira kuwedzera chiteshi chekutonhodza chiteshi mufa uye tikweshe tembiricha yekunyungudika nekungori 15 ° C kutungamira kumberi kwekusimbisa zvakanaka. Yakanga iri vhiki yekugadziriswa kwemaminiti, matanda ekupfura, uye maCT scans.
Izvi zvinosungirirana mune yakafara pfungwa: process monitoring. Mukukandira kwakajairika, iwe unotarisisa tembiricha uye kudzvanywa. Pano, iwe unoda data pane slurry viscosity kana chidimbu chakasimba mune chaiyo-nguva, iyo yakaoma zvinoshamisa kuyera yakananga pane yekugadzira pasi. Isu takazoshandisa proxy: iyo simba mbiri pane jekiseni piston. Iyo chaiyo curve yakabatana neyakanaka slurry mhando. Yakanga iri nzira isina kukwana, asi yakaita kuti basa riitwe. Urwu ndirwo rudzi rwemaoko-pakugadzirisa matambudziko ausingamboverenge mumapepa ezvidzidzo.
Zvinhu Zvishoma uye Mubvunzo weAlloy
Nepo aruminiyamu nemagnesium zvichiwana kutariswa kwese, ko nezvesimbi kana alloys akakosha? Zvipingamupinyi zvehunyanzvi zvinowanda. Iyo tembiricha yekugadzirisa yakakwira zvakanyanya, uye kudzora slurry chimiro chinhu chinotyisa. Ndinoziva mapurojekiti eR&D pasimbi isina simbi, asi kugona kwekutengesa kuri kure. Apa ndipo apo hunyanzvi hweakarebesa machining uye wekukanda mudiwa hunova hwakakomba.
Tora kambani yakafanana Qingdao Qiangsenyuan Technology Co., Ltd. (QSY). Neanopfuura makore makumi matatu mugomba mold uye kukanda mari, pamwe neCNC machining, vaona maitiro achiuya nekuenda. Kushanyira nzvimbo yavo pa tsngtaocnc.com, iwe unowana pfungwa ye pragmatic nyanzvi. Ivo vanoshanda nesimbi yakakandwa, simbi, isina tsvina, uye iwo anonyengera akakosha alloys senge cobalt uye nickel-based. Kwavari, kusvetukira mune semi-yakasimba yeiyi yakakwirira-yemhepo zvinhu zvinoda yakakosha kugadziridzwazve uye mutengi base anoda kubhadhara mari yakawanda. Izvo hazvigoneke, asi bhizinesi nyaya inofanirwa kuve-yakasimba-pamwe kune yakakosha chikamu chemuchadenga uko huremu uye simba zvakakosha, uye mutengo ndewechipiri.
Maitiro avo epakati-kukandira mari, kuumba ganda-kuunza kuomarara kusingadaviriki uye kupedzisa kwepamusoro kune iwo akanyanya-kuita alloys. Dzimwe nguva, nzira yakaedzwa-uye-yechokwadi ndiyo chaiyo. Kusundira nzira itsva semi-yakasimba munzvimbo iyoyo haingori dambudziko rehunyanzvi; zviri pamusoro kunzwisisa yose kukosha cheni, kubva mbishi zvinhu sourcing kuti post-kukanda kupisa kurapwa uye machining. QSY's yakabatanidzwa maitiro kubva pakukanda kuenda kuCNC machining mukana wakakura wekubatanidzwa kwechikamu, asi yakamisikidzwa mumatanho avakagona kwemakumi emakore.
Iko Kubatanidza Musoro Wemusoro: Kubva Kukandira kuenda kuMachining
Iyi ihombe. Semi-solid cast part haisi nguva dzose yakapedzwa. Kazhinji inoda machining. Uye maitiro ekugadzira anogona kunge akasiyana. Izvo zvinhu zvakaomesesa, neiyo yakanaka globular chimiro, asi maturusi ezvishandiso anogona kunge asingatarisirwe. Isu takaona kuti nepo general machinability yakavandudzwa nekuda kwekudzika porosity, iyo yakaoma, yakawedzera yunifomu chimiro dzimwe nguva chaitungamira kukurumidza kushatisa kwechishandiso mune mamwe mashandiro, sekuchera makomba akadzika. Iwe haugone kungoshandisa iwo mafeed akafanana uye nekumhanyisa seyeyakajairwa die-cast chikamu.
Ndokusaka kuve nemachining mumba, kana mukubatana kwakasimba, kusingagone kutaurirana. Mhinduro yemhinduro inofanira kuva pfupi. Iwo machinists anofanirwa kuudza timu yekukanda kana vachiona zvisina kujairika maturusi ezvishandiso kana nyaya dzekupedza pamusoro, izvo zvinogona kudzoka kumashure kudiki mutsauko mukugadzirira slurry zuva iroro. Uku kusanganisa kwakamira-sezvakavakwa neQSY-izvo zvinobvumira kunyatsoita maitiro. Chikwata chekukandira hachisi kungokanda zvikamu pamusoro pemadziro.
Ndinorangarira chikamu chegiya bhokisi chatakagadzira. Iyo as-cast dimensional kugadzikana yaive yakanaka, asi panguva yekutarisana nekuvhiya, takava nekutaura kushoma. Zvakazoitika kusawirirana kudiki muchikamu chakasimba pachikamu (chisingagone kuyerwa) chakagadzira kuomarara kudiki. Iyo gadziriso yaive yadzoka padanho rekubata slurry, kuve nechokwadi chekuwedzera yunifomu tembiricha munda. Pasina machinist akaimisa nekukasira, tingadai takainyora sechinhu chekushandisa uye tikapotsa chikonzero.
Saka, Zvinoita Rini?
Pashure pezvose, izvi semi-solid metal casting zvakakodzera here? Kwete pazvinhu zvese. Mutengo wekuseta wakakwira, hwindo rekuita rakasimba, uye rinoda mwero wekudzora maitiro ayo akawanda foundries haana kushongedzerwa. Ndezvekukosha kwepamusoro-soro, kuomarara kwezvikamu uko mabhenefiti-kuderedza huremu, simba, uye kuderedzwa machining stock-zvinoshandura zvakananga mukuita kana mari yekuchengetedza pasi.
Funga zvinhu zvekuchengetedza mota (mabviro, mabhuraketi), premium simba rekushandisa dzimba, kana mamwe mafittings emuchadenga. Kune yakakwirira-vhoriyamu, midziyo yemidziyo, yakajairwa high-pressure die casting ichiri mambo. Kune akanyanya-kuoma maumbirwo mu superalloys, kukanda mari kunogona kunge kusingakundike. Semi-yakasimba inogara mune niche pakati pavo.
Ramangwana? Iri mune zvirinani, zvakachipa chaiyo-nguva slurry yekutarisa uye yakawanda yakasimba alloy maumbirwo. Pamwe otomatiki uye AI inogona kubatsira kudzikamisa iyo maitiro hwindo. Asi ikozvino, inoramba iri nzira yenyanzvi. Icho chishandiso chine simba mubhokisi rematurusi, asi iwe unofanirwa kuziva nguva chaiyo yekuisvika, uye unoda timu uye kushivirira kuti uinaye mukati. Haisi yekutsiva dzimwe nzira; ndezvekuve neimwe sarudzo yekuti kana iyo specs yaoma. Uye dzimwe nguva, yakanakisa kufamba ndeyekuziva nguva yekusaishandisa zvachose, uye kuomerera nenzira yakasimbiswa inounzira mutengi, zuva nezuva.
