Paunonzwa 'Precision Sand Casting', mufananidzo uripo unogona kunge wakaoma kunzwisisa, pedyo-neti-shape zvikamu. Icho chikamu chayo, asi iyo chaiyo nuance-uye kune akawanda specs anoikanganisa-iri mukunzwisisa kuti 'chaiyo' pano haisi yekudzingirira micron-level kushivirira senge mukukanda mari. Iri nezve inodzorwa, inodzokororwa geometry uye kutendeseka kwepamusoro mune maitiro akanyanya kusimba kune mamwe chikamu mhuri. Iyo yakajairika gomba iri kuitora senzira yakachipa yekuumba goko kana kurasika-wakisi, kana iri chaiyo mhinduro yakasarudzika yekugadzirwa kwevhoriyamu yepakati-yakaomesesa zvikamu uko kugadzikana kwedimensional uye kunzwika kwemukati hazvigone kutaurirana.
Kushivirira Kusinganzwisiswi
Ini ndinorangarira chirongwa makore apfuura che hydraulic valve body. Iyo dhizaini yakadaidza ± 0.5mm pane dzakakosha bore nzvimbo. Mutengi pakutanga akasundidzira kukanda mari, achifunga kuti ndiyo chete nzira. Isu takaitirana nharo nezvejecha rechokwadi-tichishandisa zircon-based system uye yakanyatso kudzora maitiro ekuumba. Manomano akanga asiri ejecha chete; yakanga iri midziyo yepateni, magadzirirwo emagedhi, uye kutenderera kwakaoma kwekurapa. Isu takarova ± 0.4mm nguva dzose, asi zvinonyanya kukosha, iyo yekumanikidza kutendeseka yaive yepamusoro nekuda kweiyo yakanakisa zviyo chimiro chatakawana. Iyo 'chaiyo' yaive mukutonga kwemaitiro, kwete chete zvinhu zvekutanga.
Painodonha ipfupi, kutaura chokwadi, iri pamadziro akatetepa zvakanyanya. Kana iwe uri kuyedza kuenda pazasi 3mm pane yakakura kukanda, iwe uri mugoko kana nzvimbo yekudyara. Iyo binder system mune chaiyo jecha ine miganhu pakuyerera. Ndakaona ma foundries achiedza kuisundidzira, zvichikonzera mistruns inotaridzika zvakanaka kune rimwe divi uye iri crumb kune rimwe. Iganhuriro yezvinhu yaunofanira kuremekedza.
Izvi zvinobatana kune izvo chitoro chakaita seQingdao Qiangsenyuan Technology Co., Ltd. (QSY) yaizosimbisa nemakumi matatu emakore ekukanda. Vanonyora shell mold uye kuisa mari kukanda zvakasiyana nokuda kwechikonzero. Paunoshanda mukati memaitiro, unokudziridza pfungwa yakajeka yekuti imwe neimwe inokwana papi. Kushanda kwavo kwenguva refu kunoratidza kuti vaona mutengo wekushandisa zvisizvo - uko kumanikidza chikamu kuita chisiri icho kunotungamira kune nzira dzinodonha kana mutengo wakawandisa wekugadzira gare gare.
Iyo Core: Binders uye Sand Systems
Mwoyo wekuita ndeye binder-jecha chemistry. Phenolic urethane inotonhora bhokisi ndiyo workhorse, asi iyo 'chaiyo' inowanzobva kujecha pacharo. Silika ndiyo yakajairwa, asi yesimbi kana yakakwira-tembiricha alloys, kuenda kune chromite kana zircon jecha inoshandura-mutambo wekudzokorora kwedimensional. Thermal kuwedzera coefficient yakaderera. Kuwedzera kushoma panguva yekudira kunoreva kushoma geometric drift. Inodhura zvakanyanya, saka hauishandise kune chivharo chegomba, asi yepombi yekugara mune duplex isina tsvina? Essential.
Takadzidza izvi nenzira yakaoma pane batch yemapombi epombi muCF8M. Tichishandisa silika yakajairwa, takanga tiine nyaya dzinoenderana dzekudonha pamatipi eblade, zvinoda kugadziriswa kukuru kweweld. Kuchinjira kune zircon system, yakagadziridza zvakare vanofudza zvishoma, uye chiyero chezvimedu chakadonha kubva pa15% kusvika pasi pe2%. Mutengo wejecha wakakwira ne40%, asi mutengo wese wakaderera ne18%. Ndiwo rudzi rwekutengesa-off calculation inotsanangura chaiyo-yenyika chaiyo kukanda jecha.
Haasi mashiripiti. The binder ratio, nguva yegesi, kucheneswa-sekondi yega yega inokosha. Iyo mold isina kupora inosuka kunze. Iyo yakanyanya kurapwa inova brittle uye inogona kukonzera inclusions. Unyanzvi huri mukuidhaira mukati kune chaiyo chikamu geometry uye alloy. Apa ndipo panowanikwa chiitiko, senge chakavakwa pafemu seQSY, chinobatika. Iwe haugone kugadzirisa kutonga ikoko.
Gating uye Kudyisa: Iyo Isingaoneki Architecture
Apa ndipo apo mhando dzeCAD hadzitaridzike senge mold yekupedzisira. Gedhi rejecha chairo rinowanzova nehukasha pane jecha regirinhi. Iwe unoda kukurumidza kuzadza kuti ushandise iyo iri nani yekupedzisa kwepamusoro kugona. Asi kukurumidza kuzadza kunogona kureva kusagadzikana. Isu tinoshandisa mafirita eceramic zvine chekuita nechitendero izvozvi-zvivharo zvakapfava zvinoiswa mumhanyi. Inowedzera mutengo, asi kudzikiswa kweiyo oxide inclusions, kunyanya mune alloys senge nickel-based, inoshamisa. Icho chisingagone kutaurirana kune chero chikamu chakagadzirirwa dynamic loading.
Kudyisa dhizaini ndeimwe hunyanzvi husina kujeka. Kusimba kwepamusoro kweforoma yakarapwa kunoreva kuti inoramba kudzvanywa kwesimbi zvakanyanya, izvo zvinogona kutadzisa kudya kana ukasangwarira. Iwe dzimwe nguva unoda mafeeders makuru kana akawanda awo achienzaniswa nejecha rakasvibira rechikamu chimwe chete. Ndinoyeuka giya gobvu-ine madziro rakanga risina chinhu kwataikopa saizi yekudyisa kubva patani yejecha regirini. Yakaguma nehombe huru yekudonha pahub. Ndaifanira kudzoka, wedzera iyo yekudyisa mutsipa modulus, uye wedzera exothermic sleeve kuti irambe ichipisa. Zvakazvipedza. Ndiwo aya anodzokorodza anogadziridza anobikwa mudhipatimendi rekutanga.
Kutarisa pane zvinyorwa kubva Iyo kambani Qingdao Qiangsenyuan Technology Co., Ltd.-special alloys, cobalt-based, nickel-based-iwe unoziva vakafanirwa kugona izvi. Aya ma alloys ane hunhu hunotyisa hwekudyisa. Kuwana ruzha rwekukanda mukati mawo nejecha chairo ichokwadi chakakomba chekugona kweiyo foundry yehunyanzvi.
Machining Allowance: The Critical Interface
Iyi inzvimbo huru yekutengesa. Iyo inonyatso mhanya chaiyo jecha maitiro anogona kudonhedza machining stock kusvika 1.5-2mm pachiso, dzimwe nguva kunyange 1mm panzvimbo yakagadzikana. Ndiyo hombe inodhura sosi pane CNC nguva uye mapfekero emidziyo. Asi hazvina kuvimbiswa. Kubvumirwa kunofanirwa kutaurirana zvichienderana nechinhu chaicho. Nzvimbo yakati sandara? 1.5mm inogona kunge yakanaka. Kuyambuka mutsara wekuparadzana kana pedyo nepakati? Ungangoda 3mm. Ndave nehasha dzekufona kubva kumashopu emuchina kana batch ichipinda nezvavanofunga kuti 'isina kukwana stock', ndokuzongoona kuti mutsauko waive kubva pakuchinja kwepakati isu hatina kunyatsozvidavirira.
Kubatana nemachining kwakakosha. Ichi ndicho chikonzero mashandiro akabatanidzwa, senge chii QSY zvinokwidziridzwa pamwe nekukandira kwavo kwakasanganiswa uye CNC machining masevhisi, vane mukana. Chikwata chavo chekugadzira chinodyisa kumashure dimensional data zvakananga kune iyo yekutanga. Iyo yakavharwa loop inobvumira kuenderera kusimba kwemaitiro. Kana kukanda uye kugadzira zviri mumakambani akasiyana, iyo mhinduro inowanzononoka, kusefa, uye kuita zvematongerwo enyika.
Isu takaisa mutemo wakapfava: yekutanga chinyorwa chekuongorora mushumo kubva kumashini inoenda kune foundry process mainjiniya, kwete kungotengesa chete. Yakaderedzwa machining allowance gakava ne70% pagore. Zvakamanikidza munhu wese kutaura mutauro wakafanana wedhamu uye zvinhu zvinoyerwa.
Parinokundikana, uye Nei
Kukundikana kunodzidzisa. Iyo yakajairika yandinoona ndeye veining-iya mafin-akange akaremara panzvimbo. Kazhinji kacho kusapindirana pakati pekuwedzera kupisa kwejecha uye simba rinopisa rebhainda. Dzimwe nguva inogadziriswa nekuchinja magiredhi ejecha; dzimwe nguva zvinoda tweak kune binder catalyst ratio. Ibasa rehutikitivha.
Kunyanya kutadza kutadza kufamba kwemadziro eforoma panguva yekudira, zvichikonzera kukanganisa kukuru. Iyi inenge nguva dzose iri pateni kana musimboti webhokisi nyaya-yakapfekwa zvekushandisa, isina kukwana rutsigiro. Idambudziko guru, kwete maitiro. Chivako chinomhanya-chakasakara mapatani haakwanise kuunza kunyatsokandira jecha, nguva. Ichi chiratidzo chinyararire chehutano hwechitoro. Kana iwe ukashanyira uye ukaona pristine, yakanyatso chengetedzwa pateni michina, chiratidzo chakanaka. Kana mapatani acho akachekwa uye akabatwa pamwe chete ne tepi, famba uende.
Hupenyu hurefu hunorehwa neQSY's 30-year history inoratidza kuti vakafamba aya macapitals. Kuchengeta kurongeka kwemaitiro kwemakumi emakore ekugadzirwa kwevatengi vakasiyana ndiko kugona kwakakosha kusingaonekwe pane yakatarwa pepa.
Iyo Chaiyo-Nyika Niche
Saka, yakagara papi nhasi? Haisi ye prototyping - mutengo wepateni wakanyanya kukwirira. Haisi yezvikamu zviri nyore-jecha rakasvibirira rakachipa. Nzvimbo yaro inotapira ndeyepakati-kusvika-yakakwirira vhoriyamu (500-10,000 zvimedu pagore) zvikamu zvinoda zvirinani kudzora uye kupedzisa kupfuura jecha regirinhi rinogona kupa, asi hauna ruzivo rwekupedzisira-chakatsetseka kana madziro matete anoraira kuisa mari. Funga compressor dzimba, miviri yevharuvhu, epakati-saizi magiya mabhokisi, hydraulic manifolds.
The material flexibility is a great plus. Kufamba kubva kune ductile iron kuenda kune nickel-based alloy kazhinji kunongoda shanduko yejecha uye kugadziridzwa kwekupisa kwemafuta muforoma. The core process logic inoramba iripo. Uku kuita kwakasiyana-siyana ndosaka vagadziri vazhinji vakasanganiswa, kunyanya avo vanoshandira magetsi uye anorema makina zvikamu, vanovimba nazvo.
Pakupedzisira, kunyatsokandira jecha chiratidzo chekubvumirana kwakagadzirwa. Iyo inogashira iyo yakakosha granularity yejecha kuti iwane scalability uye kurongeka kwechimiro, yobva yashandisa chemistry, kudziya kwekutonga, uye kwakaomarara maitiro ekudzora kusundira iyo sisitimu kumuganhu wayo unoenderana. Iwo maitiro einjiniya anonzwisisa kuti kugadzira ndeyekusarudza yakanyanya kusimba mhinduro, kwete iyo chete ine nhamba yakasimba pabepa. Ndiko kutongwa kunongouya chete nekuona zvikamu zvichibudirira, nekutadza, pauriri hwechitoro kwemakore.
