Kana vanhu vazhinji vakanzwa 'kurasika zvekukanda wakisi', vanobva vangofunga nezvewakisi pachayo. Ndiyo yekutanga kusanzwisisa. Iyo wakisi patani ingori pekutanga, scaffold yenguva pfupi. Nyaya yenyaya chaiyo inotanga mushure mekunge wakisi yaenda. Iri nezve refractory slurry, stucco, simbi yaunodurura, uye kunyangwe mweya uri muchoto chako chekutsva. Kuwana ipi neipi yeizvi zvisizvo zvinoreva musiyano uri pakati pekukandira ruzha nemurwi wezvirasha zvinodhura. Ndakaona mapurojekiti akawandisa achikundikana nekuti mumwe munhu akaraira 'yakajairwa' yekudyara poda pasina kufunga nezvekuwedzera kwekupisa kwealloy kana chikamu chegeometry.
Nheyo: Zvose Zvinotanga neShell Yakanaka
Ngatitaure nezve mold. Iyo goko rekudyara haisi 'plaster' chete. Kune akawanda einjiniya maapplication, kunyanya ane yakakwira-yakanyungudika alloys, uri kubata ne silica-based system, inowanzosanganiswa silica kana zircon hupfu. Iyo binder ndiyo kiyi - ethyl silicate kana colloidal silica. Iwo colloidal silica binders akajairika ikozvino nekuda kwekuenderana kwawo, asi iyo ethyl silicate masisitimu anogona kukupa yakapinza pamusoro pekupedzisira pane mamwe majeometri, kunyangwe iwo ari trickier kubata. Sarudzo pano inoraira hurongwa hwako hwese hwekuomesa. Kukurumidza, uye iwe unowana mitswe; yanyanya kunonoka, uye mutsara wako wekugadzira unogaya kusvika wakamira.
Ini ndinorangarira batch yenickel-based superalloy turbine blades atakaita. Kudhinda kwacho kwaida madziro akatetepa zvisingaite. Takashandisa yedu yakajairwa zircon primary slurry, asi stucco yaive giredhi isiriyo - jecha raive rakaomarara. Yakanga isina kukiyira mune slurry zvakanaka pamapendero akatsetseka. Zvakaguma nei? Metal kupinza, rough as-cast surface yakatora mazera kuti muchina uchene. Chidzidzo chaive chekuti zvakarasika zvekukanda wakisi nokuti goko rinoda kuenzaniswa kwete nesimbi chete, asi nehukuru hwechimiro. Kuti uwane ruzivo rwakanaka, unoenda zvakanaka nestucco yako kubva pajasi rekutanga, kunyangwe zvichireva kuwedzera rimwe jasi kana maviri kuti usimbise.
Apa ndipo panokosha ruzivo kubva kuchitoro chenguva refu. Kambani yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nemakore avo 30 mukati Investment casting uye machining, vachange vaine slurry mafomula uye stucco gradations inodhairirwa mukati kumhuri dzakasiyana dzezvinhu. Havasi kungotenga generic 'investment'; ivo vari kutonga raibhurari yezvinhu zvakasanganiswa zvesimbi yakakanda maringe necobalt-based alloys, semuenzaniso. Irwo ruzivo rwemasangano mune zvekugadzirira zvinhu ndizvo zvauri kubhadhara chaizvo.
Wakisi pachayo: Haasi ese Akasikwa Akaenzana
Dzokera kune wakisi. Zvinoita sezviri nyore, asi ndeye chaiyo polymer musanganiswa. Iwe une yako pateni wax, yako mumhanyi wax, uye yako kugadzirisa wax. Vane nzvimbo dzakasiyana dzekunyungudika, viscosities, uye shrinkage rates. Kushandisa wax yakaderera-yakanyunguduka-inogadzirisa wax pane yakakwirira-yakanyunguduka-point pattern inogona kukonzera kukanganisa panguva yegungano kana mumatanho ekutanga ekudonha. Musoro mukuru wakanyanya kuwedzera wakisi. Kana fomura yako yewakisi ikawedzera zvakanyanya pane imwe tembiricha, inogona kutsemura ganda rakasvibira rakasvibira panguva ye autoclave dewaxing process. Poof, hezvo kuumbwa kwako.
Takambochinjira kumutengesi wewakisi 'akachipa' kuti awane mari yakawanda yesimbi isina tsvina. Majekiseni emajekiseni akange akadzimwa zvishoma, uye wakisi yaive nepamusoro vhoriyamu kukwenya. Zvaiita sezvakanaka kudzamara tatanga kuunganidza masumbu - iwo mapatani aigara-zvidiki-zvidiki akamonyoroka, zvichikonzera kusapindirana kwemitsara pane yekupedzisira castings. Mari yakachengetwa pawakisi yakadzima zvakapetwa kagumi nekuwedzera kweNDT nemachini anodiwa. Iye zvino, isu tinonamatira nemavhenji akaratidzwa uye tinomhanyisa mabheti madiki ebvunzo kune chero chirongwa chitsva. Wakisi ndiyo purani; kana zvisirizvo, zvese zviri pasi pemvura hazvina kunaka.
Iyo Metal Kuzadza: Iko Material Sayenzi Inowana Chaiyo
Ichi ndicho chikamu chiri pachena, asi chizere nekunyengera. Iyo data sheet ye316L isina tsvina chinhu chimwe; kuti kupisa kwesimbi kunopindirana sei negoko rako chairo pakudurura tembiricha yako ndeimwe. Fluidity, kupisa kubvarura tsika, shrinkage maitiro - zvese zviri muhuwandu. Iine alloys akakosha senge nickel kana cobalt-yakavakirwa QSY rondedzero, kutonga kwakatonyanya kusimba. Aya alloys anowanzo shanda. Kana goko rako riine kemesitiri isiriyo kana kuti isina kunyura zvizere, unogona kuwana yakashata pamusoro pekuita dhizaini iyo inotyisa kubvisa.
Gating uye dhizaini yekudyisa chikamu che zvakarasika zvekukanda wakisi hurukuro, zvakare. Iyo inosimudza zvinhu (kazhinji yakafanana alloy) chibayiro chakaverengerwa. Kukura kwayo uye kuiswa ibasa reiyo alloy's solidification renji. A alloy-refu-range alloy inoda nzira yakasiyana yekudyisa pane yenguva pfupi. Ndakaona magoko akanaka achidururwa zvakakwana, kungowana shrinkage porosity muchikamu chakakora nekuti riser yakarasika kana kuti idiki. Iyo simbi yaive 'yekufungidzira', asi dhizaini yaisaremekedza zvinhu zvayo.
Mutambi Asingaoneki: The Burnout Cycle
Kazhinji inofuratirwa mune zvinyorwa zvinyorwa ndeye mhepo yevira. Kutsva kunoita mabasa maviri akakosha: inobvisa wakisi (pasina kutsemura goko) uye inopinza goko kuita mold yakasimba, yakagadzikana mumakemikari. Matembiricha ematembiricha, mabatiro, uye nharaunda (mhepo, nitrogen) zvese chikamu che'material process'. Yakanyanya-hasha rampu inogona kuvhuvhuta magomba kunze kwekumanikidzwa kwemhepo. Kupisa kusina kukwana kwekupedzisira kunosiya goko risina simba uye richida kupinda nesimbi.
Kune yakaoma cores kana ceramic mafirita mukati me mold, kutenderera kwekupisa kunotonyanya kukosha. Izvi zvakasiyana-siyana zveceramic zvinhu zvine avo ekuwedzera macurves. Kana iwo asingaenderane neiyo huru shell material kuwedzera kwemafuta, iwe unowana kushushikana kutsemuka. Ihurongwa. Iwe haugone kungotenga 'yakanaka' shell zvinhu uye 'yakanaka' yepakati zvinhu; iwe unofanirwa kuve nechokwadi kuti vanoshanda pamwechete kuburikidza nekutenderera kwese kwekushisa. Iyi igomba remhando yepamusoro mune prototyping.
Kukundikana seMudzidzisi: Maonero Akashata
Kukundikana kwangu zvakanyanya padzidzo yaive yakati sandara, sendiro-sechikamu muductile iron. Isu takashandisa yakajairwa fused silica shell. Chikamu chakabuda chakakotama, sechipu chembatatisi. The material was fine, shell was intact. Nyaya yaive yekutonhodza zvakasiyana. Micheto yakatetepa yakagomara uye yakabatana kutanga, ichikwevera panzvimbo ichiri-yakanyungudutswa, iyo yakabva yasimba mukushushikana. Iyo shell zvinhu pachayo, ichiri refractory, yakanga isina kukwana kwakaringana kana kupisa conductivity kukurudzira kutonhora kwakafanana. Isu takazvigadzirisa nekuchinjira kushell system ine yakakwira alumina yemukati kune iro basa chairo, iro rakachinja kupisa kwekubvisa dynamics, uye nekuwedzera strategic chill mbabvu mune wax patani pachayo. Zvakandidzidzisa kuti mold zvinhu inotora chikamu mukusimbaradza, kwete chigaba chega.
Kuunza Zvose Pamwe Chete: The Shop Floor Reality
Saka paunenge uchiongorora zvakarasika zvekukanda wakisi, hausi kutora zvinhu pasherufu. Uri kuronga zvinhu zvinofambirana, zvinogadzirisa zvinhu. Wakisi inofanira kushanda pamwe chete nekushandisa kwako uye kugadzirisa. Zvigadzirwa zvematehwe zvinofanirwa kushanda nenzira yako yekubvisa wakisi, tembiricha yako yekudururira simbi, uye kuomesa kwayo. Simbi inofanira kuva yegiredhi uye hunhu hunoenderana nezvinonetsa zvichaonekwa nechikamu. Chekupedzisira, maitiro ese anofanirwa kuve akagadzikana zvakakwana kuti adzokororwe, batch mushure mebatch.
Ndosaka kubatirana neane ruzivo foundry kusiri kwekungoburitsa nhanho. Iwe uri kubaya mune yavo yakadzika, kazhinji yakaoma-kuhwina, zvinhu uye process database. A firm like QSY hakusi kungotengesa zvidhori; vari kutengesa iko iko kushandiswa kwemakumi matatu emakore ekudyidzana kwezvinhu - vachiziva kuti ndeipi maumbirwo egoko rinopa nzvimbo inogoneka pane yavo. special alloys, kana kuti kugadzirisa sei preheat kune yakaoma nhete-madziro simbi chikamu. Zvishandiso ndizvo zvinogadzirwa, asi resipi chaiyo iri mumabhuku ezvitoro uye hunyanzvi hwenyanzvi. Iwe unogona kutenga iwo akafanana poda nemawakisi avanoita, asi pasina iwo mamiriro, iwe uri kungotarisira zvakanakisa. Mumutambo uyu, tariro haisi zano.
