Paunonzwa 'air set sand casting', mufananidzo wepakarepo unongove mumwe musiyano wekukanda jecha, pamwe kuchena zvishoma. Ndiyo yekutanga kusanzwisisa. Haisi yekungoshandisa mhepo kurapa binder. Iyo chaiyo nuance, uye kutaura chokwadi panogumburwa zvitoro zvakawanda, iri mukudyidzana pakati pemusanganiswa wejecha reactivity, hunyoro hwepanzvimbo pauriri hwechitoro zuva iro, uye chaiyo binder catalyst nguva. Iro maitiro anonzwa kukanganwira kusvika zvachose kwete.
Iyo Core Mechanism uye Kugaya Kwayo Kwezuva Nezuva
Nheyo yacho yakatwasuka: a synthetic resin binder inosanganiswa nejecha rakaoma silica, uye mvura inokonzeresa inounzwa kuti itange kurapa. Iro zita rekuti 'air set' rinobva pakuti rinorapa patembiricha yemumba kana rapiswa. Asi heino kubata-nguva yebasa, kana kuti 'hupenyu hwebhenji', ine hutsinye. Muzhizha, nekunyorova kwepamusoro, musanganiswa wako unogona kutanga kumisikidzwa mumaminitsi mana akafuratira, achishandura batch yakakwana kuita bundu, risingagoneki misa isati yasvika pafurasiki. Kuoma kwechando kunogona kutambanudza nguva iyoyo, kuisa pangozi maumbirwo asina simba kana iwe ukakurumidza kubvisa muenzaniso. Iwe unogara uchigadzirisa catalyst ratios nekunzwa uye ruzivo, kwete chete nedata sheet.
Takadzidza izvi nenzira yakaoma pakufamba kwepombi dzimba dzemutengi. Iyo spec inodaidzira kupedzisa kwepamusoro pemvura yemukati, kugadzira air set jecha kukanda sarudzo yakanaka pane yechinyakare jecha rakasvibira. Zuva rekutanga rakafamba zvakanaka. Zuva rechipiri, kumberi kwakapinda, mwando wakawedzera, uye hatina kubhadhara. Zvakaguma nei? Nhevedzano dzezviumbwa zvine zvinyoro zvinonyunguduka, zvinyoro-nyoro izvo zvakachinjika zvakananga kune zvakakandwa. Imwe neimwe yaive chirahwe. Mutengo wacho wakanga usiri musimbi chete; yakanga iri munguva yakarasika uye kutatarika kurongazve mutsara wekugadzira.
Ndimo mune hunyanzvi chaihwo. Iyo nzira yekubata. Mushonga wakarungwa unobata chitsama chejecha rakasanganiswa, worisvinira, uye kutonga kutanga kwekurapa nekupisa kunoitwa uye nekutyoka kwayo. Hapana chiridzwa chinogona kutsiva icho chekukurumidza pasi. Iyo mukana, kana iwe uchiiroverera, ndeye yakasarudzika dimensional kurongeka uye kupedzisa kwepamusoro kunowanzoda kushoma machining, inova godsend yeakaoma geometries.
Material Kuenderana uye QSY's Niche
Iyi nzira haisi yesimbi yese. Inopenya nema alloys ayo anowanzo kuita gasi kana kuti anoda chaiwo iwo magradients ekupisa. Takava nebudiriro huru nesimbi ine ductile uye yakaderera-alloy simbi. Jecha rakaoma, rakasungwa nemakemikari rinoderedza kugadzirwa kwegasi kubva muhunyoro, kuderedza kukanganisa kwepinholing. Nekudaro, kune yakakwirira-chromium simbi isina tsvina kana superalloys, mutambo unochinja. Kuchengetedza kwekupisa kwe mold kwakasiyana, uye kuparara kwebinder dzimwe nguva kunogona kutungamira kune carburization kana ukasangwarira nejecha rakatarisana.
Izvi zvinopindirana zvakananga nehunyanzvi hweiyo foundry senge Qingdao Qiangsenyuan Technology Co., Ltd. (QSY). Nemakumi matatu emakore ekukanda uye machining, ivo vanonzwisisa kuti maitiro inongova hafu yehondo. Kambani yakaita seQSY, inonyora kuumbwa kwegoko, kukanda mari, uye kushanda nemaaloyi akakosha senge nickel-based, angasvika. air set jecha kukanda nekunzwisisa kwakajeka kwemiganhu yayo uye synergies. Semuyenzaniso, muviri wakaomarara wevharuvhu muduplex simbi isina tsvina unogona kutanga sejecha remhepo rinokandira kumusangano waro wepakati uye chimiro chikuru, wozoenda kuzvitoro zvavo zveCNC kuti unyatso kufinha uye kufuratira kwakatarisana. Mhepo yakagadzika maitiro inovapa pedo-net-chimiro nekutendeseka kwakanaka, kuderedza inodhura alloy tsvina panguva yekugadzira.
Ndinoyeuka purojekiti yezvigadziriso zvegiredhi remugungwa apo machira acho aive alloy yenickel-copper. Jecha regirini rakanga rabuda nekuda kwekunetsekana nehunyoro. Investment casting yaive yakawandisa uye inodhura pakukura kwechikamu. Air set yaive yakanaka yepakati pasi. Chinokosha chaive kugadzira tsika yakatarisana nejecha-zirconia-based mix-inopesana nemuenzaniso kudzivirira kusangana kwesimbi-mold, uchishandisa silika yejecha rinotsigira. Yakanga iri nzira yakasanganiswa iyo inoshanda zvakasiyana-siyana inovakirwa.
Mutoro WeMuiti Wemuenzaniso
Iyi nzira haina tsitsi pamhando yemhando. Chero undercut, chero diki backdraft yaunogona kuenda nayo mujecha rakasvibira, inokiya iyo pateni mumhepo set mold. Iyo resin bond yakasimba. Isu tinoshandisa makona ekudhirowa anonzwa akawandisa kune ziso remuchina-kazhinji 3 madhigirii mashoma panzvimbo yakatwasuka. Patani zvinhu zvine basa zvakare. Huni inogona kuchinjika pamwe ne exothermic reaction yeanorapa resin nekufamba kwenguva. Isu takachinjira kune yakakwira-density polyurethane kana simbi mapatani kune chero kugadzirwa kunomhanya pamusoro pe50 zvidimbu. Mutengo wekutanga wakakwira, asi kuenderana uye kuderedzwa kuderera kwepateni kugadzirisa kuripa.
Venting ndehumwe hunyanzvi husina kujeka. Zviumbwa zvacho zvakaoma. Iwe haugone kuvimba nejecha permeability chete kuti urege magasi kutiza panguva yekudira. Isu tinowedzera akajeka emhepo machani akavezwa munzvimbo inoparadzana kana kushandisa vent wax patani inotsva. Kuita izvi zvisizvo kunotungamira kune mistruns kana kuzvimba kukanda zviyero, hurema hunongowanikwa pakuwongorora kwekupedzisira.
Economic Reality uye Process Selection
Saka unoisarudza rinhi? Haisi yekugara. Kune akareruka, akakwira-vhoriyamu grey iron zvikamu, girinhi jecha rinokurumidza uye rakachipa. Nezvishongo zvakaomarara kana turbine blades, iwe unoenda kunodyara. Air set jecha kukanda inotora nzvimbo yakakosha yepakati: yakaderera kusvika pakati mavhoriyamu ezvikamu zvinoda kupera kuri nani uye kushivirira pane jecha rakasvibira, asi zvakakurisa kana geometrically zviri nyore kuratidza nzira yakazara yekudyara. Funga mabhuraketi einjini, makesi egiya, miviri mikuru yevharuvhu, kana hardware yekuvaka.
Iko kuverenga kwehupfumi kunosanganisira iyo binder mutengo, iyo yakakosha, asi inoibvisa nekudzikiswa kwekamuri yekuchenesa basa uye yakaderera machining mvumo. Kuchengetedzwa kwe2mm yestoko kumativi ese pa100kg simbi yekukandira inoshandura kuita maawa mashoma pane inogayo. Kune mugadziri akabatanidzwa seQSY, iyi maonero akazara-kubva kune yakawanikwa kusvika kune yakapedzwa muchina chikamu-ndipo uko kukosha kwechokwadi kwemaitiro kunotorwa. Zvinovabvumira kutora mazwi nemakwikwi pachikamu chakapedzwa, kwete kungokanda mbishi.
The takeaway? Icho chishandiso chenyanzvi. Inoda kuremekedzwa kwemakemikari uye zvakatipoteredza zvinhu. Hazvizoregereri kusava nehanya. Asi kana ikaiswa kuchikamu chekurudyi, nerutsigiro rwakakwana kubva pakugadzira patani kusvika kusvika kumabasa ekukanda, inoburitsa mibairo yakaoma kurova. Ndezvekukodzera maitiro kuhupenyu hwechigadzirwa, kwete kumanikidza chigadzirwa kuti chiite chakajairika. Ndiko kutongwa kunouya kubva mukuona zvese zviri zviviri kubudirira kwayo kwakajeka uye nekukanganisika kwayo, kutadza kunodhura pauriri hwechitoro.
