1- Kodi Investment Casting ndi chiyani?
Investment kuponyera, amene amadziwikanso anataya sera kuponyera kapenakuponya molondola, amatanthauza mapangidwe a ceramic mozungulira sera kuti apange nkhungu yambiri kapena gawo limodzi kuti alandire zitsulo zosungunuka. Njirayi imagwiritsa ntchito jekeseni wonyezimira wopangidwa ndi phula kuti akwaniritse mawonekedwe ovuta komanso apamwamba kwambiri. Kuti apange nkhungu, ndondomeko ya sera, kapena masango amitundu, amalowetsedwa muzinthu za ceramic kangapo kuti apange chipolopolo chochindikala. Njira yochotsera sera imatsatiridwa ndi kuuma kwa chipolopolo. Kenako chigoba cha ceramic chopanda sera chimapangidwa. Chitsulo chosungunula chimatsanuliridwa m'zigoba za ceramic kapena masango, ndipo kamodzi kolimba ndi kuzizira, chipolopolo cha ceramic chimathyoledwa kuti chiwonetse chinthu chomaliza chachitsulo.Precision Investment castingsakhoza kukwaniritsa kulondola kwapadera kwa zigawo zing'onozing'ono ndi zazikulu zoponyera muzinthu zosiyanasiyana.
2- Ubwino Wotani pa Investment Casting?
✔ Kumaliza kwabwino komanso kosalala pamwamba
✔ Kulekerera kolimba kwambiri.
✔ Mawonekedwe ovuta komanso otsogola okhala ndi kusinthasintha kwamapangidwe
✔ Kutha kuyika makoma owonda kwambiri chifukwa chake ndi gawo lopepuka
✔ Kusankhidwa kwakukulu kwazitsulo ndi ma aloyi (zachitsulo komanso zopanda chitsulo)
✔ Kujambula sikofunikira pamapangidwe a nkhungu.
✔ Chepetsani kufunika kwa makina achiwiri.
✔ Kuwononga zinthu zochepa.
3- Kodi Njira Zoyendetsera Ndalama Ndi Chiyani?
Panthawi yopangira ndalama, phula la sera limakutidwa ndi zinthu za ceramic, zomwe, zikaumitsidwa, zimatenga geometry yamkati ya kuponyedwa komwe kumafunikira. Nthawi zambiri, magawo angapo amawunikiridwa pamodzi kuti agwire bwino ntchito pomangirira phula pa ndodo yapakati yotchedwa sprue. Sera imasungunuka kuchokera papatani - ndichifukwa chake imatchedwanso ndondomeko yotayika - ndipo zitsulo zosungunuka zimatsanuliridwa muzitsulo. Chitsulo chikalimba, nkhungu ya ceramic imagwedezeka, ndikusiya mawonekedwe apafupi a ukonde wofunidwa, kutsatiridwa ndi kutsiriza, kuyesa ndi kuyika.
4- Kodi Ma Investment Castings Amagwiritsidwa Ntchito Bwanji?
Zogulitsa zamalonda zimagwiritsidwa ntchito kwambirimapampu ndi ma valve, magalimoto, magalimoto,ma hydraulics, magalimoto a forklift ndi zina zambirimafakitale. Chifukwa cha kulekerera kwawo kwapadera komanso kutsirizika kwabwino, zotayika za sera zimagwiritsidwa ntchito mochulukira. Makamaka, azosapanga dzimbiri ndalama castingszimagwira ntchito yofunika kwambiri popanga zombo ndi mabwato chifukwa ali ndi mphamvu yolimbana ndi dzimbiri.
5- Kodi Kulekerera Kwanu Kungathe Kufikira Bwanji Popanga Investment?
Malinga ndi zida zosiyanasiyana zomangira zomwe zimagwiritsidwa ntchito popanga chipolopolocho, ndalama zopangira ndalama zitha kugawidwa kukhala silika sol casting ndi kuponyera magalasi amadzi. Njira yopangira ndalama za silica sol ili ndi Dimensional Casting Tolerances (DCT) ndi Geometrical Casting Tolerances (GCT) kuposa njira yamagalasi amadzi. Komabe, ngakhale ndi njira yoponyera yomweyi, Gulu la Kulekerera lidzakhala losiyana ndi aloyi iliyonse chifukwa cha kuthekera kwawo kosiyanasiyana.
ZathuInvestment casting foundryndikufuna kulankhula nanu ngati muli ndi pempho lapadera pa zololera zofunika. Apa m'munsimu muli kalasi yololerana yomwe titha kufikira onse ndi silika sol kuponyera ndi njira zoponyera magalasi amadzi padera:
✔ Gulu la DCT lolemba Silica Sol Lost Wax Casting: DCTG4 ~ DCTG6
✔ Gulu la DCT ndi Madzi Galasi Otayika Sera: DCTG5 ~ DCTG9
✔ Gulu la GCT lolemba Silica Sol Lost Wax Casting: GCTG3 ~ GCTG5
✔ Gulu la GCT ndi Galasi Yamadzi Yotayika Sera: GCTG3 ~ GCTG5
6- Kodi Malire Akukula Kwa Investment Cast Components Ndi Chiyani?
Zopangira ndalama zitha kupangidwa m'mitundu yonse kuyambira kagawo kakang'ono, pamakina a mano, mpaka ma 1,000 lbs. (453.6 kg) pazigawo zovuta za injini ya ndege. Zigawo zing'onozing'ono zimatha kuponyedwa pamazana pamtengo, pamene zolemera kwambiri nthawi zambiri zimapangidwa ndi mtengo umodzi. Kulemera malire a kuponya ndalama zimadalira nkhungu akugwira zida pakupanga kupangat. Magawowo amatha mpaka 20 lbs. (9.07kg). Komabe, malo ambiri apakhomo akuwonjezera kuthekera kwawo kutsanulira zigawo zazikulu, ndi zigawo za 20-120-lb. (9.07-54.43-kg) osiyanasiyana akukhala wamba. Chiyerekezo chomwe nthawi zambiri chimagwiritsidwa ntchito popanga ndalama ndi 3: 1-pa 1-lb iliyonse. (0.45-kg) ya kuponyera, payenera kukhala 3 lbs. (1.36 kg) kwa mtengo, malingana ndi zofunika zokolola ndi kukula kwa chigawo chimodzi. Mtengowo nthawi zonse uyenera kukhala waukulu kwambiri kuposa chigawocho, ndipo chiŵerengerocho chimatsimikizira kuti panthawi ya kuponyera ndi kulimbitsa, mpweya ndi kuchepa zidzathera mumtengo, osati kuponyera.
7- Ndi Zomaliza Zamtundu Wanji Zomwe Zimapangidwa Ndi Investment Casting?
Chifukwa chipolopolo cha ceramic chimasonkhanitsidwa mozungulira mawonekedwe osalala opangidwa ndi kubaya sera muzitsulo zopukutidwa za aluminiyamu, kuponyedwa komaliza ndikwabwino kwambiri. Kumaliza kwapang'ono kwa 125 rms ndikokhazikika komanso kumalizidwa bwino kwambiri (63 kapena 32 rms) ndikotheka ndi ntchito zomaliza zachiwiri. Malo oponyera zitsulo pawokha ali ndi miyezo yawoyawo ya zilema zapamtunda, ndipo ogwira ntchito pamalowo ndi akatswiri opanga mapulani/makasitomala azikambirana za kuthekera uku dongosolo la zida lisanatulutsidwe. Miyezo ina imadalira kugwiritsa ntchito komaliza kwa chinthucho komanso zodzikongoletsera zomaliza.
8- Kodi Investment Castings Ndiokwera mtengo?
Chifukwa cha mtengo ndi ntchito ndi nkhungu, zopangira ndalama nthawi zambiri zimakhala ndi ndalama zambiri kuposa zida zopukutira kapenakuponya mchengandi njira zokhazikika zoponyera nkhungu. Komabe, amapanga mtengo wokwera kudzera pakuchepetsa kwamakinazimatheka chifukwa cha kulekerera kwa as-cast near-net-shape. Chitsanzo chimodzi cha izi ndi luso la zida za rocker zamagalimoto, zomwe zimatha kuponyedwa popanda makina ofunikira. Ambirizitsulo mbalizomwe zimafuna mphero, kutembenuza, kubowola ndi kupera kuti zitsirize zitha kuponyedwa ndalama ndi 0.020-0.030 yokha yomaliza. Kuphatikiza apo, kuyika ndalama kumafunikira ma angles ocheperako kuti achotse mawonekedwe pazida; ndipo palibe kusanja kofunikira kuti muchotse castings zitsulo ku chipolopolo chandalama. Izi zitha kulola kuti ma angles okhala ndi ma degree 90 apangidwe popanda makina owonjezera kuti apeze ma angles amenewo.
9- Ndi Zida Ziti ndi Zitsanzo Zomwe Zili Zofunika Pakuponyera Sera?
Kuti apange mawonekedwe a nkhungu ya sera, chitsulo chogawanika (chokhala ndi mawonekedwe omaliza) chiyenera kupangidwa. Kutengera ndi zovuta zoponya, mitundu yosiyanasiyana yazitsulo, ceramic kapena soluble cores zitha kugwiritsidwa ntchito kuti zilole kusinthidwa komwe mukufuna. Zida zambiri zopangira ndalama zimawononga pakati pa $500- $10,000. Ma prototypes othamanga (RP), monga stereo lithography (SLA) angagwiritsidwenso ntchito. Mitundu ya RP imatha kupangidwa m'maola ndikutenga mawonekedwe enieni a gawo. Magawo a RP amatha kusonkhanitsidwa palimodzi ndikukutidwa ndi ceramic slurry ndikuwotchedwa kuti pabowo lopanda kanthu lipeze gawo lopangira ndalama. Ngati kuponya kuli kokulirapo kuposa envelopu yomanga, zigawo zingapo za RP zitha kupangidwa, zosonkhanitsidwa kukhala gawo limodzi, ndikuponyedwa kuti zikwaniritse gawo lomaliza. Kugwiritsa ntchito mbali za RP sikuli koyenera kupanga kwambiri, koma kungathandize gulu lojambula kuti lifufuze gawo lolondola ndi mawonekedwe, lokwanira ndikugwira ntchito musanapereke dongosolo la chida. Zigawo za RP zimalolanso wopanga kuyesa masanjidwe angapo kapena ma aloyi ena popanda kugwiritsa ntchito ndalama zambiri.
10- Kodi Pali Porosity ndi / kapena Shrinkage Zowonongeka ndi Investment Castings?
Izi zimatengera momwe zitsulo zoponyera zitsulo zimapangidwira bwino gasi kuchokera kuchitsulo chosungunula ndi momwe zigawozo zimalimba. Monga tanenera kale, mtengo womangidwa bwino udzalola kuti porosity itsekedwe mumtengo, osati kuponyera, ndipo chipolopolo cha ceramic chotentha kwambiri chimalola kuzizira bwino. Komanso, zida za vacuum-investment cast zimachotsa chitsulo chosungunula cha zolakwika za gassing pomwe mpweya umachotsedwa. Kuyika ndalama kumagwiritsidwa ntchito pazovuta zambiri zomwe zimafuna x-ray ndipo ziyenera kukwaniritsa zomveka bwino. Ungwiro wa kuyika ndalama ukhoza kukhala wapamwamba kwambiri kuposa magawo opangidwa ndi njira zina.
11- Ndi Zitsulo ndi Zosakaniza Ziti Zomwe Zingatsanuliridwe ndi Investment Casting pa Foundry Yanu?
Pafupifupi ambiri achitsulo ndi nonferrous zitsulo ndialoyiakhoza kuperekedwa ndi ndondomeko ya ndalama. Koma, pa malo athu otaya phula otayika, timaponyera makamakacarbon steel, aloyi chitsulo, chitsulo chosapanga dzimbiri,wapamwamba duplex chitsulo chosapanga dzimbiri, chitsulo chotuwa, chitsulo chosungunuka,zitsulo za aluminiyamu ndi zamkuwa. Kuphatikiza apo, ntchito zina zimafunikira kugwiritsa ntchito ma alloys ena apadera omwe amagwiritsidwa ntchito makamaka m'malo ovuta. Ma aloyi awa, monga Titanium ndi Vanadium, amakwaniritsa zofunika zina zomwe sizingachitike ndi ma aloyi wamba a Aluminium. Mwachitsanzo, ma aloyi a Titanium nthawi zambiri amagwiritsidwa ntchito popanga ma turbine masamba ndi ma vanes a injini zakuthambo. Cobalt-base ndi Nickel-base alloys (omwe ali ndi zinthu zingapo zachiwiri zomwe zimawonjezeredwa kuti akwaniritse mphamvu zenizeni zamphamvu, corrosion-mphamvu ndi katundu wosagwira kutentha), ndi mitundu yowonjezera yazitsulo zotayidwa.
12- Chifukwa Chiyani Investment Casting Imatchedwanso Precision Casting?
Kuponyera ndalama kumatchedwanso precision casting chifukwa kumakhala bwino kwambiri komanso kulondola kwambiri kuposa njira ina iliyonse yoponyera. Makamaka silika sol kuponyera ndondomeko, castings yomalizidwa akhoza kufika CT3 ~ CT5 mu geometrical kuponyera kulolerana ndi CT4 ~ CT6 mu dimensional kuponyera kulolerana. Kwa ma casings opangidwa ndi njira yopangira ndalama, padzakhala zochepa kapena sizifunikanso kupanga njira zopangira makina. Kumbali ina, kuponya ndalama kungalowe m'malo mwa makina ovuta.
13- N'chifukwa Chiyani Kutaya Sera Kumatchedwa Investment Casting?
Kupanga ndalama kumatchedwa dzina lake chifukwa mapatani (wax replicas) amayikidwa ndi zida zotchingira zozungulira panthawiyi.kuponyera ndondomeko. "Woyika ndalama" apa akutanthauza kuzunguliridwa. Zofananira za sera ziyenera kuyikidwa (zozunguliridwa) ndi zida zomangira kuti zipirire kutentha kwa zitsulo zosungunuka zomwe zikuyenda panthawi yoponya.