Vanhu vazhinji pavanonzwa 'stainless steel precision casting', vanofananidzira chinhu chisina kukanganisa, chinopenya kubva mubhurocha. Ndiyo yekutanga kusanzwisisa. Chokwadi ndechekuti 'chaizvo' pano inguva ine hukama, nhaurirano yenguva dzose pakati peiyo yakanaka yeCAD modhi uye yakasindimara fizikisi yesimbi yakanyungudutswa. Hazvisi zvekungoshivirira kwakasimba; ndezve kugadzirisa kukanganisa, kufanotaura kuderera kwegiredhi rega rega resina tsvina, uye kuziva kuti ndeipi kupera kwepamusoro kunogoneka 'se-cast' maringe nezvinodiwa post-machining. Ndakaona akawanda magadzirirwo anotsanangudza kuisa mari kune kuoma kwayo asi zvoda kushivirira kwemuchina pane imwe neimwe nzvimbo - inzira yechokwadi yekuridza bhajeti. Unyanzvi hwechokwadi huri mukuziva izvo maitiro anogona kukupa iwe pachako uye kwaunofanirwa kupindira.
Iyo Core Yekuita: Zvese Nezve Shell
Zvose zvinoenderana neganda receramic. Vazhinji vatsva pakutsvaga vanofunga kuti simbi ndiyo nyeredzi, asi goko ndiro danho, mutungamiriri, uye mugadziri wezvipfeko zvese mune imwe. Goko risina simba zvinoreva nhava kana chimbi; goko risina kuenzana rinotungamira kune kusaenderana kwemadziro ukobvu. Isu tinopedza mazuva, dzimwe nguva mavhiki, tichingori pakugadzira slurry uye stuccoing process. Kune yakakosha pombi impeller mu316L, semuenzaniso, isu tinogona kushandisa yakasanganiswa silica primary jasi kuti ive nani kupera kwepamusoro, asi chinja kune zircon yebhachi rekuchengetedza nekuda kwekukwirira kwayo kwepamusoro. Ndidzo sarudzo idzi, kazhinji dzisingaonekwe muchikamu chekupedzisira, dzinoona kubudirira kana yadhi izere nezvimedu.
Kudzora tembiricha panguva dewaxing imwe mhondi chinyararire. Kukurumidza, uye goko rinotsemuka kubva pawakisi iri kukura. Kunyanya kunonoka, uye iwe unosiya zvakasara zvinoshanduka kuita kabhoni inclusions panguva yekudira. Ndinoyeuka bhechi remugungwa patakanga tine hovhoni duku yokuyeresa—yaingova madhigirii 15 pane imwe nguva. Mhedzisiro yakanga isiri kukundikana kwekukurumidza; makungu aitaridzika zvakanaka. Asi panguva yekudira, iwo madiki-akatsemuka akabvumira simbi kupinda, ichigadzira yakakasharara, isingagamuchirwe yemukati pamusoro iyo yaisaonekwa kusvika yekutanga machining yapfuura. Icho chaive chidzidzo chinodhura mukuvimba, asi kusimbisa, yega yega parameter.
Uye ipapo pane kupera simba. Hazvisi zvekunyungudusa wakisi chete. Inyaya yekushandura chero yasara patani zvinhu kuita madota anogona kudzingwa, achisiya pasina kabhoni kumashure kuti isvibise simbi isina tsvina. Kune duplex mamakisi senge 2205, izvi zvakakosha nekuti kabhoni yemukati inokanganisa corrosion kuramba. Iwe haugoni kungopisa zvakanyanya; unotevera kutenderera kwekushisa chaiko. Apa ndipo panoitwa makumi emakore ekudzidzira, serudzi rwakavakwa pafemu yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), ita musiyano. Unokudziridza kunzwa nezvazvo. Kutarisa kwavo kwenguva refu shell mold casting uye Investment casting inopa ruzivo rwakadzama, rwekushanda kwematanho aya asina kunaka asi akakosha.
Material Haisi Ingori Chete Chete
Kudoma Stainless simbi kwakafanana nekutaura mota — haina zvazvinoreva pasina mhando. 304, 316, 17-4PH, 2205-vose vanozvibata zvakasiyana-siyana mucrucible uye mold. 304 inoregerera, asi kuderera kwayo kwakakosha. 17-4PH, giredhi rekunaya-kuomesa, rakanaka kune simba-kusvika-huremu, asi idambudziko rekubvarura kupisa kana geji rako nekusimuka system isina kugadzirwa kuti igadzirise maitiro ayo ekusimba. Iwe haugone kushandisa imwechete yekudyisa logic kune yega alloy.
Isu takadzidza izvi nenzira yakaoma neiyo prototype yeaerospace bracket. Kudhinda kwakadaidzira 17-4PH muH900 mamiriro. Isu takaikanda, takaigadzira, takaipisa nekupisa. Yakapfuura dimensional cheki asi yakakundikana ultrasonic inspection. Tumisodzi tunopisa mukati. Nyaya yacho? Yedu inosimuka, yakanakira 316, haina kupa yakakwana kutungamira kusimba kune iyi chaiyo alloy. Isu taifanira kudzoka, kutevedzera kusimba zvakare nechaiyo zvinhu zvivakwa, uye nekugadzirisazve iyo yese gating marongero. Yakawedzera vhiki nhatu kupurojekiti. Ikozvino, kune chero alloy nyowani, kunyanya iyo special alloys senge nickel-based, isu tinoomerera pakumhanyisa coupon diki yekuyedza kutanga kuti tione kuti inodyisa sei uye inodzikira munzvimbo yedu chaiyo inowanikwa.
Ichi ndicho chikonzero kudyidzana neakawana anonzwisisa zvechokwadi simbi isingagone kutaurirana. Hazvisi zvekunyunguduka nekudira; ndezvekuziva kuti kune yakakwira-nickel alloy, iwe unofanirwa kudzora tembiricha yekudurura kusvika mukati me30-degree hwindo kuti udzivise kupatsanurwa, kana kuti kune mamwe maapplication, unogona kutopa zano rakasiyana, rinokandwa giredhi rinosangana nezvinodiwa zvinoshanda panjodzi yakaderera. Chitoro chine makore makumi matatu mumutambo, seQSY, chinenge chakatarisana nemadhimoni akanangana neaya uye kuvaka mhinduro mukuita kwavo. Iwe unogona kuwana tarisiro yehuwandu hwavo hwezvinhu pane yavo saiti pa https://www.tsingtaocnc.com.
Iko Kukandira Kunopera uye Machining Kunotanga
Uku ndiko kubata kukuru, uye ndipo panogumburwa mapurojekiti mazhinji. Kwete Stainless simbi yakarurama kukanda ndeyechokwadi mambure-chimiro chezvikamu zvinoshanda. Kune nguva dzose zviso zvedatum zvinogadzirwa, shinda dzinofanirwa kutepwa, kana nzvimbo dzekuisa chisimbiso kuti dzipedzwe. Chinokosha istrategic stock allowance. Isa masheya akawandisa kwese kwese kuti uve akachengeteka, uye uri kutambisa mari pane yakawandisa simbi uye machining nguva. Isa zvishoma, uye unoisa panjodzi yekupaza nepakati peganda, uchifumura zvingangoita subsurface porosity.
Iyo yakanaka ndeyekubatana neiyo machining timu kubva padanho rekugadzira. Isu tinogara tichivavarira kuona maratidziro akakosha kare - toti, chiso cheflange chinosangana nechimwe chikamu kana chiboo chekubereka. Idzi nzvimbo dzinowana yakanangwa, inowirirana stock allowance, kazhinji ingori 0.5-1mm. Nzvimbo dzisiri-dzakaoma dzinogona kusiiwa mu-as-cast state, iyo, kana yako shell process yakanaka, inogona kuve yakachena kwazvo kupedzisa. Iyi nzira yakabatanidzwa ndiyo inoparadzanisa mupi wezvikamu kubva kune anopa mhinduro. Zvakajeka kubva kuQSY kupa kwekusanganiswa CNC machining kuti vanoshanda pamusimboti uyu, vachidzora maitiro kubva pakuumbwa kusvika pakupera muchina chikamu, izvo zvinobvisa yakakura layer yekukanganisa kwekutaurirana uye kunaka kwemunwe-kunongedza.
Ini ndinorangarira purojekiti yemuviri wevhavha uko yekutanga kukanda dhizaini yaive neyunifomu 3mm stock. Iyo machinist akapedza 80% yenguva yake achibvisa simbi kubva munzvimbo dzisingashande. Nekugadzirisa patsva kukanda kuti tiwedzere zvinhu chete panodiwa machining datum uye zvisimbiso zvakakosha, takadzikisa huremu hwese hwekukanda ne18% uye takacheka nguva yekugadzira nepakati. Kuchengeta kwacho kwaishamisa. Tinodzidzei? Precision kukanda kwakawanda nezve hungwaru kubvisa zasi kwerwizi sekunge kuri kudzorwa kuwedzera mune yekutanga.
Chokwadi cheKushivirira uye Kupedzwa
Miyero yeindasitiri senge ISO 8062 inokupa mabhendi ekushivirira, asi ari kutanga mapoinzi, kwete vimbiso. A CT5 kushivirira pa50mm dimension inonzi ± 0.35mm. Asi iwe unogona here kubata iyo pane iyo batch yese, pane ese maficha? Hazvigoneki. Zvimiro pamutsara wekuparadzana zvichava nemusiyano wakawanda. Madziro matete anonetsa kudzora pane akakora. Iyo chaiyo nyanzvi kutonga kuri mukuziva kuti ndezvipi zvibvumirano zvekutengesa (general geometry) uye izvo zvakakosha (zvakakodzera, basa). Iwe unotaurirana uye tarisa maitiro ako ekutonga pane akakosha.
Surface finish ndiyo imwe nzvimbo yakagadzirira kusanzwisisa. A typical Investment casting inogona kuwana Ra ye 3.2 kusvika 6.3 micrometers as-cast. Zvakanaka, asi hazvina kukwenenzverwa. Kana iwe uchida Ra 0.8 yechisimbiso chine simba, iwe unozoda machining kana polishing. Kukandira kunogona kukuswededza pedyo, asi hakugoni kuita minana. Ndakaita kuti vatengi vakumbire girazi rinopedzisa rakananga kubva muforoma. Hazvishande nenzira iyoyo. Iwe unofanirwa kutsanangura saizi yezviyo zveceramic, iyo interface pakati pejasi rekutanga slurry uye simbi-iyo muganho wemuviri.
Visual inspection standards inodawo kujekeswa. Chii chinogamuchirika kusakwana kwepamusoro? Idiki inosanganisirwa pane isina-kumanikidzwa, isiri-yekuzora nzvimbo inogona kugashirwa zvakakwana maererano neASTM miyero, asi mutengi anoshandiswa kugadzira kana zvidimbu zvemichina anogona kuzviramba. Kuisa tarisiro idzi kumberi, nemasampuli emuviri kana zvichibvira, kwakakosha. Zviri nani kuratidza sampuli ine yakajairwa pamusoro pemagadzirirwo pane kuita nharo mushure memazana mashanu zvidimbu zvagadzirwa.
Kukundikana Ndivo Vadzidzisi Chaivo
Iwe haudzidzisi kurongeka kubva kumirairo yakakwana; unozvidzidza kubva kumabhini ezvikara. Isu takambove nedambudziko rinodzokororwa ne micro-porosity muhub yevhiri diki returbine. Yakapfuura X-ray asi yakakundikana pasi pekuedzwa kwekunetseka. Isu takagadzirisa zvese: kudira temp, shell preheat, alloy kuumbwa. Hapana chakashanda nguva dzose. Pakupedzisira, munguva yekushungurudzika, takatarisa patani yewakisi pachayo. Gedhi rejekiseni rakanamirwa panzvimbo inonetsa, kugadzira hotspot yenzvimbo. Nekungofambisa nzvimbo yegedhi uye nekuwedzera kutonhora kudiki muforoma panzvimbo iyoyo, takanangisa kumberi kwekusimbisa uye kubvisa porosity. Dambudziko rakanga risiri simbi; yaive thermal geometry yatakagadzira.
Imwe kutadza kwekirasi kufunga kuti zvese post-processing zvakaenzana. Isu takatumira batch ye316 castings yekufambisa kune mutsva mutengesi. Vakashandisa nitric acid bath, standard practice. Asi kugeza kwavo kwakanga kwasvibiswa nechlorides kubva kubasa rekare. Mhedzisiro yacho yaive chikamu chepamusoro chakatadza bvunzo yekupfapfaidza munyu zvinoshamisa. Kukandira kwacho kwaive kwakanaka, asi yedu yekugovera cheni control yanga isiri. Ikozvino, isu tinokwanisa kupedzisa vatinoshanda navo zvakasimba semaitiro edu pachedu. Iyi yekupedzisira-ku-kuguma kutonga, mukuona kwangu, chiratidzo chemutengesi akura. Ndiyo mhando yekutarisa kwakazara iyo kambani inovaka pamusoro anopfuura makore makumi matatu mubhizinesi, kutonga zvese kubva ku simbi yakakandwa kune ekunze alloys pasi pedenga rimwe.
Saka, paunotarisa Stainless simbi yakarurama kukanda, usangoona iyo yekupedzisira geometry. Ona iyo slurry tank, tembiricha machati, iyo yekusimbisa simulation, handoff kumuchina weCNC, uye zvidzidzo zvakahwina kubva mukukanganisa kwakapfuura. Iko kurongeka kunowanikwa, kwete kupihwa, kuburikidza nechuru diki, nhanho dzinodzorwa uye kunzwisisa kwakadzama kwekuti maitiro echisikigo anorara papi uye paanofanira kumanikidzirwa zvine simba mumutsara. Ndizvo zvauri kutenga chaizvo.
