Njira Zazikulu Zopangira Ndalama

Investment castingamagwiritsa ntchito sera zomwe zimapangidwa ndi zida zapadera komanso zapadera monga momwe zimafunikira. Mapanidwe a sera (zofanana) azunguliridwa ndi zigawo zomangira zomangira zomangira kuti apange chigoba cholimba kuti chitha kupirira zitsulo ndi zitsulo zosungunuka. Kuchotsa sera kumachotsa sera kuti pabowo likhale lobowoka kotero kuti chitsulo chosungunulacho chidzaze ndi kupanga zigawo zoponyera zomwe mukufuna. Ichi ndichifukwa chake kuponyera ndalama kumatchedwanso kutayika kwa sera. M'malo opangira ndalama zamakono, zida zomangika zimatanthawuza silika sol ndi galasi lamadzi, lomwe limatha kuonetsetsa kuti pamwamba pake pali bwino.ndalama castings. Njira yopangira ndalama nthawi zambiri imagwiritsidwa ntchito popanga zitsulo za kaboni, zopangira zitsulo za aloyi,zitsulo zosapanga dzimbirindi zojambula zamkuwa. Pano m'nkhaniyi, timayesetsa kufotokoza njira zazikulu zopangira ndalama.

Konzani Zida Zothira Sera
Malinga ndi zomwe akufunikira komanso poganizira za kutha kwa makinawo komanso kucheperako, akatswiri opanga makina opangira ndalama ayenera kupanga ndi kupanga nkhungu yachitsulo (yomwe imatchedwanso "kufa") ndi zida zopangira phula.

Kupanga Chitsanzo cha Sera
Masiku anozida zoponyera phula zotayika, mapatani a sera amapangidwa pobaya phula mu chida chachitsulo kapena "kufa" ndi makina apadera a jakisoni. Popanga kangapo, chida cha silicon nthawi zambiri chimapangidwa kuchokera ku chosema cha ojambula ndipo sera imabayidwa kapena kutsanuliridwa pabowo.

Msonkhano wa Mitengo ya Sera
Nthawi zambiri zimakhala zopanda ndalama kupanga tizigawo tating'onoting'ono kamodzi kamodzi, kotero mawonekedwe a sera nthawi zambiri amamangiriridwa ndi sera. Sera pakati pa mapatani ndi sprue amatchedwa zipata, chifukwa amatsitsa njira ndikuyenda kwa aloyi wosungunuka kulowa mumpanda wopangidwa ndi pateni. The sprue amagwira ntchito ziwiri
- 1. Amapereka malo okwera kuti asonkhanitse mapatani angapo kukhala nkhungu imodzi, yomwe pambuyo pake imadzazidwa ndi aloyi
- 2. Amapereka njira yoyendera ya aloyi wosungunula mumpanda wopangidwa ndi mapangidwe a sera.

Zomangamanga za Shell
Chotsatira pochita izi ndikumanga chigoba cha ceramic kuzungulira mtengo wa sera. Chigoba ichi pamapeto pake chidzakhala nkhungu yomwe zitsulo zimathiridwamo. Kuti amange chipolopolocho, mtengowo umamizidwa mumadzi osambira a ceramic kapena slurry. Pambuyo kuviika, mchenga wabwino kapena umagwiritsidwa ntchito pamtunda wonyowa. Chikombolecho chimaloledwa kuuma, ndipo ndondomekoyi imabwerezedwa kangapo mpaka nkhungu ya ceramic yosanjikiza, yomwe imatha kupirira kupsinjika kwachitsulo chosungunuka ndi ma alloys panthawi yothira.

Dewax / Kupsa
Musanathire chitsulo mu nkhungu, sera imachotsedwa potenthetsa chipolopolo. Izi nthawi zambiri zimachitika mumoto-dewax autoclave, yomwe ili ngati chophikira chachikulu, chamakampani. Njira ina ndiyo kugwiritsa ntchito ng'anjo yoyaka moto, yomwe imasungunuka ndi kutentha sera. Sera ikhoza kusonkhanitsidwa ndikugwiritsidwanso ntchito popanga phula lotsatira. Mabungwe ambiri opangira ndalama amagwiritsa ntchito njira ziwirizi mu konsati. Moto wonyezimira umayatsa sera yotsalira ndikuchiritsa chipolopolo, kukonzekera kulandira chitsulo chosungunula ndi aloyi.

Kuthira Chitsulo
Chitsulocho chisanatsanulidwe mu nkhungu ya ceramic kapena chipolopolo, nkhunguyo imatenthedwa ndi kutentha kwapadera kuti alloy yosungunuka ikhale yolimba kapena kuzizira musanadzaze nkhungu yonse. Aloyi amasungunuka mu kapu ya ceramic (yotchedwa crucible) pogwiritsa ntchito njira yotchedwa induction melting. Mphamvu yamagetsi yamagetsi imapanga mphamvu ya maginito kuzungulira aloyi, imapanga minda yamagetsi mkati mwazitsulo (mafunde a eddy). Mafunde a eddy amatenthetsa aloyi chifukwa cha kukana kwamagetsi kwazinthuzo. Alloy ikafika kutentha kwake, imatsanuliridwa mu nkhungu, ndipo nkhungu imaloledwa kuziziritsa.

Shell Knock Off
Zikazizira, chipolopolocho chimachotsedwa muzitsulo pogwiritsa ntchito njira zamakina monga nyundo, kuphulika kwa madzi othamanga kwambiri kapena tebulo logwedezeka. Kuchotsa zipolopolo kungathenso kuchitidwa ndi mankhwala, pogwiritsa ntchito njira yotentha ya potaziyamu hydroxide kapena sodium hydroxide, koma njirayi ikutha chifukwa cha chilengedwe ndi thanzi.

Dula
Chigobacho chikachotsedwa, sprue ndi zipata zimadulidwa pamanja kapena ndi macheka, torchi laser kudula. Malo odulira amafunika kuwapukuta kuti akhale abwino.

Munthu payekha Castings
Zigawozo zitachotsedwa ku sprue, ndipo zipata zimachotsedwa, pamwamba pake imatha kumalizidwa kudzera mu njira zingapo monga kugwedezeka, kutsirizitsa media, kumangirira, kugaya manja, kupukuta. Kumaliza kumatha kuchitidwa ndi manja, koma nthawi zambiri ndi makina.Kuponya magawoKenako amawunikiridwa, amaikidwa chizindikiro (ngati pakufunika), amapakidwa ndi kutumizidwa. Kutengera ndikugwiritsa ntchito, magawo opangira ndalama amatha kugwiritsidwa ntchito ngati "mawonekedwe a ukonde" kapena kupitiliramakinakwa malo olondola.