Iwe unonzwa 'kurasika wax investment casting' uye vanhu vazhinji, kunyangwe vamwe vari mukutengesa, vanofananidza iyi isina gwapa, ingangoita yemashiripiti maitiro apo unodira simbi mugoko receramic uye uwane chikamu chakakwana. Ndiyo shanduro yebhurocha. Chokwadi, kugayiwa kwaro kwezuva nezuva, ikurukurirano yenguva dzose nezvinosiyana-siyana-kuumbwa kwewakisi, slurry viscosity, saizi yezviyo zvestucco, nzira dzekudzikisa, tembiricha yepreheat. Zvishoma zvekutevera resipi yakakwana uye zvimwe nezve kuziva kuti ndeipi knob yekutendeutsa kana humidity spikes kana batch nyowani yebinder inoita. Chikamu 'chakarasika' hachisi chekunyangarika kwenamo chete; ingangoita maawa asingaverengeki ekugadzirisa dhizaini izvo zvisingamboite kune spec sheet.
Nheyo: Zvese Zvinotanga (uye Inogona Kupera) nePateni
Munhu wese anotarisa pamusoro pesimbi, asi nzvimbo chaiyo yekudzora ndiyo patani yewakisi. Isu taifunga kuti chero wakisi yejekiseni yaizoita, chero yakazadza mold. Kukanganisa kukuru. Iyo pateni ine kushushikana kwemukati kana kushoma kutsveyama kudzokorodza icho chikanganiso nekutendeka kuburikidza nenhanho yega yega inotevera, ichizopedzisira yave yekukanda ine dimensional drift hapana huwandu hwemachining hunogona kugadzirisa zvizere. Ndinoyeuka batch yemitumbi yevharuvhu yatakamhanyira kune mutengi, uko mapatani aitaridzika zvakakwana kuziso. Asi panguva yekuungana, zviteshi zvaisaenderana. Mupari wemhosva? Musanganiswa wewakisi wakanyanya kupfava kukamuri yedu inodzorwa nemamiriro ekunze svondo iroro; mapatani acho akanga adonhera pasi pasi pehuremu hwawo pamuti. Kudirwa kwese kwaive marara. Ikozvino, isu tiri kupengereka pamusoro pekuongorora kwepateni, tichishandisa kuyera kuyera pamatanho emuenzaniso wemabasa akakosha, kwete kungokandira kwekupedzisira.
Kuunganidzwa kwemuti wewakisi humwe hunyanzvi hwekunyepedzera senzira. Haisi kungonamira zvikamu pane sprue. Iyo gating dhizaini-makona, nzvimbo dzekubatanidza, madhayamita-inotungamira kuyerera kwesimbi uye kusimba. Ita zvisizvo, uye iwe unounza mhirizhonga kana kugadzira nzvimbo dzinopisa dzinotungamira kune shrinkage porosity. Takadzidza kushandisa simulation software kwete semudonzvo, asi senzvimbo yekutanga yekukurukurirana. Iyo software inogona kuratidza marongero, asi vedu vepasi vakomana, vane makore emeso-kutsemuka mapatani mumakanda akatyoka, anowanzo gadzirisa makona zvichienderana nekuti slurry inodonha sei kubva kune imwe cluster geometry. Iyo maoko-on mhinduro loop haigone kutsiva.
Uye ipapo pane wakisi pachayo. Kudzoreredza uye kushandisazve wakisi chiyero chemutengo, asi kuderedzwa kwepolymer cheni mushure mekutenderera kwakawanda kunoshandura zvimiro zvayo. Inowedzera brittle, inokanganisa kupera kwepamusoro. Panzvimbo yedu, isu tinotarisisa iyo melt flow index yemabhachi akadzoserwa wax mune zvekunamata. Kusanganisa mhandara uye kudzoreredzwa wakisi kurova hwindo rekuita chaiko ibasa renguva dzose asi rakakosha. Ndiyo imwe yeaya akashata mameseji anopatsanura anoenderana mhando kubva kune zvimiro zvisina kujeka.
Iyo Shell Kuvaka: Iyo Layer-ne-Layer Hondo
Kuvaka iyo ceramic shell ndiko uko maitiro anowana zita rayo 'investment'. Iwe urikudyara nguva uye zvinhu mune isina kusimba isina kusimba iyo inofanirwa kumirisana nekuvhunduka kwekupisa. Iyo yekutanga jasi ndiyo zvese. Iyo ndiyo interface inobata iyo pateni mamiriro epamusoro. Isu tinoshandisa zircon-based slurry kune yakawanda simbi uye alloy basa-yayo yakanaka zviyo chimiro chinopa yakatsetseka 'se-cast' kupera. Asi iyo viscosity inofanirwa kuongororwa nguva dzose, inogadziriswa kune tembiricha. Yakanyanya kukora, uye iwe unowana coating-up mune yakanaka maficha; yanyanya kutetepa, uye goko harina simba rakasvibira.
Iyo stuccoing process inoita seyakatwasuka: dip, drain, jecha. Asi kusarudzwa kwezvinhu zve stucco uye saizi yezviyo kune imwe neimwe layer ine hunyanzvi. Bhachi rekutanga rinogona kuwana yakanaka 80-mesh zircon jecha kuti idzokorore zvakadzama. Anotevera akaturikidzana anogona kushandisa akaomesesa alumina-silicate zvinhu kuti zvirinani inter-layer bonding uye permeability. Ndakaona mabhomba achikundikana mu dewaxing autoclave nekuti shanduko pakati pemagiredhi e stucco yakangoerekana yavepo, ichigadzira nzvimbo yekushushikana. Yakatsemukira kunge zai. Ikozvino, isu tine chirongwa chestucco chakapedza kudzidza chakanyorwa pasi, asi nyanzvi inotungamira ichine hungwaru hwekuwedzera imwe yepakati-jasi dip kana goko riri pachikamu chakakura kwazvo chemuti richiita sekufungidzira.
Kuomesa pakati pejasi ndiyo yechokwadi nguva-kunyura. Kuchimhanyisa ndiyo gomba rinonyanya kuitika. Kusaomesa zvakakwana kunoteya unyoro, hunoshanduka kuita hutsi panguva yekudonha uye kupeperetsa goko kubva mukati. Takatamira kumakamuri ane hunyoro, asi kunyangwe zvakadaro, mafambiro emhepo akatenderedza muti wakakora haana kuenzana. Isu tinotenderedza miti nemaoko pakati pema cycles-yakadzika-tech mhinduro yedambudziko repamusoro-soro. Iko hakuna otomatiki inokwanisa kutevedzera iyo yakadzidziswa tepi yegumbo pagoko kuti uteerere iyo chaiyo, isina kuoma kuoma.
Dewaxing & Kupfura: Iyo Poindi yekusadzoka
Dewaxing ndiko kuberekwa kwechisimba kwegomba re mold. Isu tinoshandisa high-pressure steam autoclaves. Kiyi imhanyiro - simudza tsinhiro nekukasira kunyungudisa wakisi yepamusoro ipapo uye kugadzira mhepo inoputika inosunda huwandu hwewakisi kunze nemusprue. Kunonoka, uye wakisi inowedzera kupisa, ichitsemura goko. Asi pane kuenzana. Kune mahombe, akasimba mapatani, isu dzimwe nguva tinoboora maburi ekuyamura munzvimbo dzisiri dzakakosha dzewakisi kudzivirira kumanikidzwa kuvaka-up. Kugadziridzwa kudiki kune wakisi pateni inochengetedza zviuru mukurasikirwa negoko.
Mushure mekubvisa wakisi, unosiiwa negoko risina kusimba rizere nemadota ewakisi asara. Kupisa kutenderera kunopisa izvi kunze uye kunopisa ceramic kuita yakasimba, monolithic mold. Tembiricha ramp rate yakakosha. Kukurumidza, uye kusara kwemwando kana kuparara kunogona kukonzera njodzi kuparara kwegoko. Tinopisa kusvika ku1000 ° C, asi nguva yekubata yakakosha setembiricha yepamusoro. Izvo ndezvekuwana yakazara ceramic shanduko uye thermal equilibrium. Goko rakabatidzwa zvakanaka rine rin'i chaiyo pariri parinorohwa zvishoma-kurova kunoreva dambudziko, kazhinji kacho kusaneta kwakakwana, izvo zvinozokonzera kukanganisa kwegasi mukukanda.
Iyo goko rinopfurwa rinobva raendeswa kunzvimbo yekudira. Nguva iri pakati pekubviswa kwechoto nekudururwa kwesimbi ndeye mujaho. Rega goko racho ritonhore zvakanyanya, uye unogona kufambisa mhute kana kuvharwa nechando sezvo simbi yekumberi inoomesa nguva isati yakwana. Isu tinovavarira kudurura negoko pakati pe800-1000 ° C, zvichienderana nealloy. Izvi zvinoda kurongeka kwehutsinye pakati pevashandi vechoto nechikwata chekudyara mari. Hapana nzvimbo yekunonoka.
Kudurura & Knock-Out: Ipo Dzidziso Inosangana Nepasi
Kudurura kunoratidzika kunge kunoshamisa, asi panguva ino, mazhinji ekupedzisira ekukanda atoiswa chisimbiso. Chinangwa chikuru ikozvino ndechekuzadza mold nekukurumidza uye zvakachena. Isu tinoshandisa argon kudzivirira kune reactive alloys senge nickel-based kuti kudzivirira oxidation. Iyo geting system yakagadzirwa mavhiki apfuura panguva yekubatanidza wax ikozvino inoratidza kukosha kwayo. Iwe unotarisa simbi ichikwira mumukombe wekudira, uchitarisira kuti inotsvedzerera, laminar kuyerera pasina kuputika kunogona kudhirowa mu slag.
Mushure mekusimba uye kutonhora, inguva yekugogodza. Iri ibasa rinotyisa asi rine njodzi. Iyo shell ine brittle asi inogona kushamisa kutsungirira. Isu tinoshandisa michina inozunguza uye dzimwe nguva sando dzepneumatic pakukanda kukuru. Chinangwa ndechekubvisa goko pasina kukuvadza kukanda kusina kusimba kana kuisa kushushikana zvisina kufanira pazvikamu zvitete. Kune yakaoma yemukati geometries, ceramic musimboti kubviswa ndiro rinotevera dambudziko. Mamwe madota esoda anoshanda, asi kune akaomesesa macores mu alloy simbi mativi, isu tinowanzo tendeukira kune yakanyanya-kudzvanywa kwemvura jetting kana nzira dzekungwarira dzekuvhundutsa. Inguva inosemesa, inobata basa rinokuyeuchidza kuti iyi haisi nzira yakachena yekamuri.
Chauchasara nacho muti une rough casting, sprue, masuwo, and all. Kuongorora kwekutanga kwekuona kunoitika pano. Kukanganisika kwakakura senge shrinkage yakakura, kutsemuka, kana kuzadza kusina kukwana zviri pachena. Asi nyaya dzisiri pachena - mapini epamusoro kubva pakuita kwegoko, kukanganiswa kudiki-zvinoda ziso rakadzidziswa. Isu tinowanzo cheka sampuli yekukanda kubva pamuti kwekukurumidza kucheka-uye-etch kuti titarise subsurface porosity tisati tazvipira kune yakazara cutoff uye kupedzisa.
Kupedzisa & Iyo Chaiyo-Nyika Compromise
Cutoff, kazhinji ine mavhiri abrasive kana bhendi masaha, ndiko kutanga kwekupedzisa. Zvino kunouya kugaya kubvisa magedhi. Apa ndipo panowanikwa kushivirira kwedimensional—kana kuti kwete. Nzira yakanyatsogadzirwa inosiya shoma shoma yekuchenesa. Isu tinovavarira pedyo-neti-chimiro, asi chengetedzo muganho we 0.5-1mm ndiyo yakajairwa kune mazhinji madiki kuti azvidavirire kune madiki ekukanda shanduko. Kune kambani yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), pamwe nekubatanidzwa kwayo CNC machining kugona, ichi chinhu chakakosha chinongedzo. Iko kukanda kwakagadzirwa uine machining datums mupfungwa. Rutivi rwekutanga runoburitsa kukanda kusiri kungoita geometrically ruzha, asi zvakare ine inopindirana madziro stock yekuti machinists ashande nawo. Iko kusanganisa kwakatwasuka uku kubva shell mold casting uye Investment casting mune chaiyo machining iyo inotibvumira kubata zvinhu kubva ductile simbi yakakandwa kuhope-ku-muchina cobalt-based alloys uye endesa chikamu chakapedzwa.
Kuongorora kwekupedzisira ndiko uko kudzorwa kwese kunobhadhara. Dimensional cheki, dhayi inopinda bvunzo yehurema hwepamusoro, X-ray yekutendeseka kwemukati. Kune yakakwirira-chaiyo zvikamu mune alloys akakosha, isu tichaita yakazara zvinhu certification, tichitsvaga iyo inopisa nhamba yeingot kumashure kuburikidza nekuita kwese. Izvo zvinopedza, asi ndiyo chete nzira yekuvimbisa kuita mumashandisirwo akakosha.
Ndichitarisa kumashure, yakarasika wax investment kukanda iketani yezana madiki maitiro. Simba reketani harisi mune imwe nzira yakakwana, asi mukunzwisisa kuti chinongedzo chega chega chinobata sei chinotevera. Zviri pamusoro pekufungidzira kuti shanduko yejekiseni rewakisi ingakanganisa sei nguva yekuomesa goko rechikamu chakakora, kana kuti sarudzo ye simbi isina tsvina giredhi inokanganisa iyo goko preheat tembiricha inodiwa pakuzadza kwakachena. Iyo yakazara, dzimwe nguva intuitive tsika yakavakirwa pahwaro hwezvinodzorwa zvinosiyana uye zvakaoma-kuhwina ruzivo. Ndizvo zvakaita makore makumi matatu mubhizinesi iri, sepa QSY, chaizvoizvo zvinoreva-kwete kungoita matanho, asi kuziva zvakadzika, kazhinji zvisingataurwi pakati pazvo. Iwe unogona kuwana kutarisa kwakadzama kwemaitiro avo ekubatanidza kukanda uye machining panzvimbo yavo, https://www.tsingtaocnc.com, iyo inoratidza uzivi hunoshanda, hwekupedzisira kusvika kumagumo.
