Mumamva kuponyedwa kwazitsulo zolimba kwambiri ndipo timabuku timajambula chithunzithunzi chaungwiro: mbali zooneka ngati ukonde, zida zamakina odabwitsa, kulimba pang'ono. Koma yendani kumalo oyambira omwe ayesera kuti agwiritse ntchito, ndipo nkhaniyo imakhala yosokoneza. Sichipolopolo china chamatsenga; ndi njira yomwe imakhala muwindo lopapatiza kwambiri lowongolera, ndipo kuyipanga molakwika ndikokwera mtengo. Mashopu ambiri amaganiza kuti ndi kutentha chabe, koma kwenikweni ndi za kuponya kwachitsulo kolimba Khalidwe la thixotropic la slurry-lomwe limayenda ngati madzi akumeta ubweya koma limakhala lolimba ngati lokhazikika. Msomali zimenezo, ndipo inu muli nacho chinachake. Kuphonya, ndipo mukuyang'ana pa billet yamtengo wapatali.
Lingaliro Lachikulu ndi Kumene Anthu Amapunthwa
Mfundo yofunika kwambiri ndiyosavuta mwachinyengo. M'malo mothira zitsulo zonse zamadzimadzi, mumagwira ntchito ndi alloy mushy, semi-solid state, nthawi zambiri mozungulira 30-50% kagawo kolimba. Kenaka matope awa amabayidwa mu ufa. Maganizo olakwika aakulu? Kuti uku ndikuponya kozizira. Si. Kukonzekera slurry ndi chirichonse. Inu mwina kupita rheocasting njira, kumene ozizira madzi zitsulo mu theka-olimba zone pamene akuyambitsa, kapena thixocasting, kumene inu kuyamba ndi mwapadera okonzeka olimba billet ndi kutenthetsanso izo. Rheocasting ikuwoneka yolunjika, koma kuwongolera kuziziritsa ndi chipwirikiti kuti mutenge mawonekedwe, mawonekedwe abwino a globular mu slurry-ndizo luso. Ndawonapo makonzedwe pomwe chipwirikiticho chidachotsedwa pang'onopang'ono, ndipo gawo lotsatira linali ndi malo ofooka omwe simumatha kuwona mpaka kuyezetsa kutopa.
Ambiri amaganiza kuti aluminium kapena magnesium alloy imagwira ntchito. Osati zoona. Kapangidwe ka aloyi kuyenera kuthandizira kupangidwa kwa gawo lozungulira la alpha-Al muzone ya mushy. Zodziwika bwino ndi A356 ndi A357 aluminiyamu, koma ngakhale zili choncho, zinthu zazing'ono zimatha kutaya morphology. Nthawi ina tinali ndi gulu la A356 lokhala ndi chitsulo chosowa pang'ono. Kukhuthala kwa slurry kunali kolakwika, zomwe zimatsogolera kudzaza koyipa m'zigawo zopyapyala. Metallurgy iyenera kukhala yokhazikika kuyambira pachiyambi.
Ndiye pali msampha wa zida. Izi sizomwe zimaponyera kufa ndi tweak. Chipinda chowombera ndi pisitoni chimayenera kuthana ndi slurry yowoneka bwino, yoyipa popanda kuyambitsa chipwirikiti chomwe chimawononga kapangidwe kake. Zipata ndi zothamanga zimapangidwira mosiyana-nthawi zambiri zimakhala zazikulu komanso zosalala kuti zisunge laminar. Ndikukumbukira ntchito yomwe tinayesa kusintha makina akale oponyera zinthu. Chotsatira chake chinali kumeta ubweya wambiri pachipata, chomwe chinawononga kapangidwe ka globular komwe tidagwira ntchito molimbika kuti tipange, kutembenuza matopewo kukhala dendritic, chisokonezo chofooka. Limenelo linali phunziro la anthu asanu ndi limodzi la kusadula ngodya.
Nkhani Yothandiza: Kulumikiza Ndodo ndi Nkhondo ya Porosity
Tiyeni tikambirane za ntchito yeniyeni: ndodo zolumikizira magalimoto apamwamba kwambiri. Apa ndi pamene kuponya kwachitsulo kolimba ayenera kuwala-mphamvu mkulu, otsika porosity, wabwino kutopa moyo. Tidagwira ntchito yothamangira kwa kasitomala wa motorsport. Cholinga chake chinali chosinthira ndodo yachitsulo chopukutira ndi chopepuka, chopangidwa ndi aluminiyamu popanda kusiya kudalirika.
Zithunzi khumi ndi ziwiri zoyambirira zinali zokongola. Ziwalozo zidatuluka ndi matte, zosalala, zowoneka bwino mkati mwa 0.1mm. Koma titayang'ana ma X-ray, tidapeza ma sporadic micro-porosity m'dera la shank. Osati gasi porosity, koma shrinkage. Nkhani yake? Ngakhale mu gawo lolimba, kudyetsa ndikofunikira. Kulimbitsa kumayendetsedwa bwino, koma ngati kutentha kwa kutentha sikuli bwino, mumapezabe maiwe omwe amacheperachepera. Tidayenera kuwonjezera njira zoziziritsira m'malo mwake ndikuwongolera kutentha kwa slurry ndi 15 ° C chabe kuti tiwongolere kutsogolo kolimba bwino. Inali sabata yakusintha kwa mphindi, zipika zowombera, ndi ma CT scans.
Izi zikugwirizana ndi mfundo yaikulu: kuyang'anira ndondomeko. Mu kuponyera ochiritsira, inu kuwunika kutentha ndi kuthamanga. Apa, mufunika deta pa slurry viscosity kapena kagawo kolimba mu nthawi yeniyeni, yomwe ndi yovuta kwambiri kuyeza molunjika pamalo opangira. Tinamaliza kugwiritsa ntchito proxy: mbiri yamphamvu pa pistoni ya jakisoni. Mpendero wina wake wolumikizidwa ndi mtundu wabwino wa slurry. Inali njira yopanda ungwiro, koma idamaliza ntchitoyo. Uwu ndiye njira yothetsera mavuto yomwe simunawerengepo m'mapepala a maphunziro.
Zochepa Zofunika ndi Funso la Aloyi
Ngakhale aluminium ndi magnesium zimatengera chidwi chonse, nanga bwanji zitsulo kapena ma aloyi apadera? Zovuta zaukadaulo zimachulukitsidwa. Kutentha kwa processing kumakhala kokwera kwambiri, ndipo kuwongolera kapangidwe ka slurry ndikovuta. Ndikudziwa mapulojekiti a R&D pazitsulo zosapanga dzimbiri, koma kutheka kwamalonda kuli kutali. Apa ndipamene ukadaulo wa mnzako wopanga makina ndi woponya kwanthawi yayitali umakhala wofunikira.
Tengani kampani ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd.. Pazaka zopitilira 30 mu nkhungu za zipolopolo ndikuponya ndalama, kuphatikiza makina a CNC, awona njira zikubwera ndikupita. Kuyendera malo awo ku tsngtaocnc.com, mumapeza chidziwitso cha pragmatic specialization. Amagwira ntchito ndi chitsulo chosungunula, chitsulo, chosapanga dzimbiri, ndi ma aloyi apadera apadera monga cobalt ndi nickel. Kwa iwo, kulumphira kukhala olimba pazida zotentha kwambiri izi kungafune kukonzanso zida komanso kasitomala wokonzeka kulipira ndalama zambiri. Sizingatheke, koma bizinesi iyenera kukhala yolimba-mwinamwake pagawo lofunika kwambiri lazamlengalenga komwe kulemera ndi mphamvu ndizofunika kwambiri, ndipo mtengo wake ndi wachiwiri.
Zochita zawo zazikulu - kupanga ndalama, kuumba zipolopolo - kumapereka zovuta kwambiri komanso kutha kwa pamwamba pa ma alloys ochita bwino kwambiri. Nthawi zina, njira yoyesera ndi yowona ndiyolondola. Kukankhira njira yatsopano ngati yolimba pang'ono mu danga sizovuta chabe; ndi za kumvetsetsa unyolo wonse wamtengo wapatali, kuchokera kuzinthu zopangira zopangira kupita kumankhwala otenthetsera ndikuwotcha. Njira yophatikizika ya QSY kuchokera pakupanga kupita ku makina a CNC ndi mwayi waukulu pakuphatikizana, koma imakhazikika m'njira zomwe aphunzira kwazaka zambiri.
Kuphatikizana Kumutu: Kuchokera Kuponya mpaka Machining
Ichi ndi chachikulu. Gawo la semi-solid cast simakhala gawo lomaliza. Nthawi zambiri zimafunika makina. Ndipo mawonekedwe a makina amatha kukhala osiyana. Zakuthupi ndizowonjezereka, ndi mawonekedwe abwino a globular, koma kuvala kwa zida kungakhale kosayembekezereka. Tidapeza kuti ngakhale kusinthasintha kwanthawi zonse kumayenda bwino chifukwa chakuchepa kwa porosity, kulimba, mawonekedwe ofananirako nthawi zina kumapangitsa kuti zida ziwonongeke mwachangu pamachitidwe ena, monga kuboola mabowo akuya. Simungangogwiritsa ntchito ma feed ndi liwiro lomwelo ngati gawo lokhazikika la kufa.
Ichi ndichifukwa chake kukhala ndi makina m'nyumba, kapena mgwirizano wolimba, sikungakambirane. Chiyembekezo chotsatira chiyenera kukhala chachifupi. Okonza makinawa amayenera kuuza gulu loponya ngati akuwona zida zachilendo kapena zovuta zomaliza, zomwe zingayambirenso kusintha pang'ono pakukonzekera tsikulo. Ndi kuphatikiza koyima uku - monga zomwe QSY yamanga - zomwe zimalola kukhathamiritsa kwenikweni. Gulu loponya silimangoponya mbali zake pakhoma.
Ndikukumbukira gawo la gearbox lomwe tidapanga. Kukhazikika kwa mawonekedwe a as-cast kunali kwabwino kwambiri, koma poyang'anizana ndi opareshoni, tinali ndi macheza pang'ono. Zinapezeka kuti kusagwirizana kwakung'ono mu gawo lolimba la gawo lonselo (losawerengeka) lidapanga kuuma kwakung'ono. Kukonzekera kunali kubwereranso pa slurry hold stage, kuonetsetsa kuti kutentha kuli kofananako. Popanda katswiri wamakina kuti atchule nthawi yomweyo, tikanalemba ngati chida chothandizira ndikuphonya zomwe zidayambitsa.
Ndiye, Kodi Zimamveka Liti?
Pambuyo pa zonsezi, ndi kuponya kwachitsulo kolimba kufunika kwake? Osati kwa chirichonse. Mtengo wokhazikitsira ndi wokwera, zenera lantchito ndi lolimba, ndipo limafuna kuwongolera njira zomwe ma foundries ambiri alibe zida. Ndi zamtengo wapatali, zovuta kwambiri zomwe phindu-kuchepetsa kulemera, mphamvu, ndi kuchepetsa makina opanga makina-amamasulira mwachindunji ku ntchito kapena kupulumutsa mtengo kutsika.
Ganizirani zachitetezo pamagalimoto (zowongola dzanja, mabulaketi), zida zopangira magetsi apamwamba, kapena zotengera zina zakuthambo. Kwa zida zamphamvu kwambiri, zida zamtengo wapatali, kuponya kwamphamvu kwamphamvu kwakadali mfumu. Pamawonekedwe ovuta kwambiri mu superalloys, kuyika ndalama kungakhale kosagonja. Semi-solid imakhala mu niche pakati pawo.
Tsogolo? Zili m'njira yabwinoko, yotsika mtengo yeniyeni yowunikira komanso yolimba kwambiri. Mwina automation ndi AI zitha kuthandiza kukhazikika zeneralo. Koma pakadali pano, ikadali njira ya akatswiri. Ndi chida champhamvu m'bokosi la zida, koma muyenera kudziwa nthawi yomwe mungafikire, ndipo muyenera gulu ndi kuleza mtima kuti muyimbe. ndi za kukhala ndi njira ina pamene zofotokozera zimakhala zovuta. Ndipo nthawi zina, kusuntha kwanzeru kwambiri ndikuzindikira nthawi yoti musagwiritse ntchito konse, ndikumamatira ndi njira yotsimikizika yomwe imapereka kwa kasitomala, tsiku ndi tsiku.
