Vanhu vakawanda pavanonzwa ‘giravhiti rakaumbwa nesimbi,’ vanofungidzira kudirana kuri nyore muforoma yejecha. Ndiyo yakajairika nzvimbo yekutanga, asi mukuita, kunyanya kune zvikamu zvinoda kurongeka chaiko, ndipo panotanga kuoma. Shoko racho pacharo rinogona kutsausa—harisi resimbi negiravhiti chete; ndezvekudzorwa kusimba, dhizaini yekuumbwa, uye kutonga hunhu hwesimbi nenzira iyo mamwe maitiro akaita seyepamusoro-kukanda kufa-kukanda haagone kubata kune mamwe maapplication. Ndakaona mifananidzo yakawandisa ichiuya iine zvinhu zve'cast iron' uye chirongwa chekudaidzira 'gravity casting' pasina kunzwisisa kwakajeka kwekutengeserana. Iko fungidziro kazhinji ndeyekuti yakachipa, yakaderera-hunyanzvi maitiro. Inogona kudhura, hongu, asi kuipa kunodhura, uye kuigadzirisa kunoda ruzivo rwakadzama rwekuita izvo zvisiri pachena.
Iyo Core Yekuita: Iri muMold uye Metal
Iyo chaiyo inosiyanisa muhutano inotanga nguva refu simbi isati yarova ladle. Zviri muforoma. Zvekuumba shell, iyo kambani inoda Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) ine ruzivo rwakadzama mukati, iyo mold pachayo inopora resin-jecha inoumbwa. Kupedzwa kwepamusoro kwakakwirira kune jecha rakasvibira, uye kurongeka kwedimensional kwakawedzera. Asi pakukandira giravhiti, gadziriro yokugezera—iyo mikoto inotungamirira simbi yakanyungudutswa—ndicho chinhu chose. Iwe hausi kumanikidza simbi pasi pekumanikidzwa; uri kuvimba negiravhiti uye kumanikidzwa kwemhepo kuti uzadze mhango. Kana masuwo asina kunaka, unowana mistruns kana mhirizhonga inoyerera inokwevera maokisi muchikamu, ichigadzira isina simba mapoinzi. Ini ndinorangarira batch ye hydraulic valve miviri yataive neinopfuurira shrinkage porosity muchikamu chakakora. Kugadzirisa kwanga kusiri tembiricha yekudurura yakakwirira; yaigadzira patsva gedhi kuti rikurudzire kusimba kwakanangana nekusimuka kwataigona kuzogura. Zvakatora kudzokorora katatu.
Ipapo pane simbi pachayo. 'Simbi yakakandwa' haisi chinhu chimwe chete. Pakukanda giravhiti, simbi yegrey (flake graphite) uye ductile iron (spheroidal graphite) ndiyo inonyanya kuzivikanwa, asi maitiro avo enyika akaparadzana. Grey iron ine yakanyanya kunyorova uye machinability asi ine brittle. Ductile iron ine simba rakanyanya kusimba uye kumwe kurebesa. Kusarudza pakati pavo hakungori cheki chemichina; ndezvekuti vanosimba sei. Ductile iron inoda kungwarira inoculation kurapwa nguva pfupi isati yadirwa kuti ive nechokwadi chekuti magirafu anoumba mumativi. Kana kurapwa ikoko kuchipera (ine 'hwindo' shoma), kana kana paine sarufa yakawandisa musimbi yepasi, unowana graphite yakashata, uye kuita kwechikamu kunodonha. Iyo inogara hurongwa hwekutonga nyaya pane yekutanga pasi, kwete chinhu chaunogona kutsanangura padhirowa wokanganwa.
Apa ndipo apo kudyidzana kwenguva refu kwekutanga kunokosha. Mutengesi anobata zvese zviri zviviri kukanda uye zvinotevera CNC machining, sezvakaitwa neQSY, ine chido chekuwana kunzwika kwekukanda kubva pakutanga. Vanoziva kuti nzvimbo yakaoma kubva kusimbi yakanyungudutswa kana pasi pevhu inoputika inoparadza mudziyo wekucheka panguva yekugadzira, kushandura kukanda kunoratidzika kunge kwakanaka kuita zvimedu. Maitiro avo ekudzora kwavo giravity cast iron parts zvinokanganisa zvakananga dhipatimendi ravo rekugadzira. Inomanikidza maonero akabatanidzwa ekugadzira iyo yausingawanzo kuwana kubva kune foundry inongodurura simbi.
Iko Kukandwa kwegiravhiti kunoita zvine musoro (Uye kwazvisingaite)
Iwe haushandise giravhiti kukanda kune dzakatetepa-madziro, akakwira-vhoriyamu zvikamu zvevatengi. Ndiyo nzvimbo yekufa-casting. Gravity casting's niche iri pakati nepakati kusvika kuzasi mavhoriyamu ezvikamu zvakaomarara, zvine hukobvu hwakasiyana-siyana hwemadziro, uye zvinoda zvakanaka zvemuchina. Funga mabhesi emuchina, dzimba dzepombi, inorema-basa gearbox makesi, kana mabhuraketi mahombe mumidziyo yemaindasitiri. Iyo nzira inobvumira kushandiswa kwejecha cores kugadzira ndima dzomukati-chimwe chinhu chakaoma zvikuru mukufa-kukanda. Semuenzaniso, bhachi remvura remukati recompressor cylinder head is classic candidate.
Asi pane yekutadza modhi yandakasangana nayo: kunyanya-kugadzira maitiro. Mainjiniya anoshandiswa kugadzira simbi dzimwe nguva anozogadzira chikamu chine mbabvu dzakawanda dzakatetepa uye mawebhu kudzikisa huremu. Mune giravhiti rakakandwa simbi, izvi zvinogona kuva njodzi. Zvikamu zvitete zvinotonhora nekukurumidza, zvichidzivirira kudya kwakakodzera kubva kune anosimuka, zvichitungamira kune network ye micro-shrinkage. Chikamu chinogona kupasa ongororo yekuona asi chichitadza pasi pekumanikidzwa kuyedzwa kana musevhisi. Chidzidzo ndechekuti kugadzira simbi inokwevera pasi kunoda kunzwisiswa kwezviganho zvekutanga-zvishoma zvinokurudzirwa ukobvu hwemadziro, machinjiro pakati pezvikamu zvakakora uye zvitete, uye kwekuisa kusimbisa. Kushandirapamwe dhizaini, kwete kungokanda kukanda pamusoro pemadziro.
Imwe pfungwa inoshanda ndeye post-casting mashandiro. Zvinenge zvese giravity cast iron parts ichada mamwe machining pazviso zvekusangana, maburi ebhaudhi, uye nzvimbo dzekuisa chisimbiso. Iyo as-cast ganda rakaoma. A foundry ane Integrated CNC machining kugona, sezvakaratidzwa muQSY's service profile, inowedzera kukosha kwakakosha. Ivo vanogona kugadzirisa chikamu vachishandisa cast datum maficha, kunzwisisa iyo yemukati yekukanda musiyano, uye muchina kusvika kumamita ekupedzisira mune imwe setup. Izvi zvinoderedza nguva yekutungamira uye zvinobvisa nyaya dzekugadzirisa dzinomuka apo kukanda uye machining zvakakamurwa pakati pevatengesi vaviri pasina kutaurirana.
Material Nuances uye iyo Alloy Mubvunzo
Nepo mwero grey uye ductile irons inovhara 80% yezvido, dzimwe nguva unoda chimwe chinhu. Apa ndipo panoedzwa hunyanzvi hwezvinhu zve foundry. Kutaurwa kweQSY kwekushanda nema alloys akakosha senge nickel-based inonakidza mune ino mamiriro. Kunyange isiri yakajairika kune yakajairwa giravhiti yakakandwa simbi zvikamu, inoratidzira kugona spectrum. Semuyenzaniso, chimwe chikamu chinogona kunge chine muviri mukuru wedare resimbi asi chinoda chigaro kana kupfeka nzvimbo ine ngura yakasarudzika kana kupisa kupisa. Dzimwe nguva, nheyo inogona kupa mazano ekushandisa simbi yakasanganiswa-seNi-Resist yekudzivirira kuora kana SiMo ductile iron yekushanda kwepamusoro-panzvimbo yekusvetukira kune imwe yakasiyana zvachose, inodhura zvakanyanya.
Dambudziko nezvinhu izvi zvakasarudzika mukukandira giravhiti ndeye fluidity uye shrinkage. Nickel-based alloys, semuenzaniso, ane tembiricha dzakasiyana dzekudurura uye maitiro ekusimba kupfuura iron. Kuadira mujecha rakagadzirirwa simbi kunogona kukonzera kukanganisa kana kupisa kubvarura kana kuumbwa kwe mold uye kutonhora kwemazinga kukasagadziriswa. Haisi nzira yaunochinja kwairi pakuda; zvinoda kuvandudzwa kwemaitiro akazvipira. Urwu ndirwo rudzi rwekumashure kugona kunoparadzanisa basa-shopu inowanikwa kubva kune yehunyanzvi mudiwa. Inopa zano kuti ivo vakashongedzerwa kubata zvisiri-yakajairwa kubvunza, izvo zvinowanzobva mukutadza kwepasirese kutadza kwezvinhu zvakajairwa.
Kune mapurojekiti mazhinji, zvakadaro, kuomerera kumagiredhi ane chimiro chesimbi ndiyo nzira yakachenjera. Iwo ezvinyorwa dhatabhesi akawandisa, iwo machining paramita anozivikanwa, uye mutengo unofanotaurwa. Kiyi iri kutsanangura giredhi nemazvo pakudhirowa: kwete chete ASTM A48 Kirasi 35, asiwo inodiwa microstructure, inogona kupisa kurapwa (sekunge kudzoreredza kushushikana mushure mekukanda, uko kwakakosha pakugadzikana mumachining), uye chero bvunzo dzakakosha senge radiographic ongororo yenzvimbo dzakaoma. Kujeka uku kunodzivirira kusanzwisisika uye kunovimbisa iyo yekutanga - ingave iri QSY kana imwe - inonyatsoziva bar yavanoda kusangana nayo.
Iyo Yekubatanidza Yakanakira: Kubva Mold kusvika Yakapedzwa Chikamu
Tichifunga nezveketani yakazara, kunyatsoshanda mukugadzira kwakavimbika giravity cast iron parts inobva mukubatanidza kwakatwasuka. Kana chinhu chimwe chete chinodzora pateni/kugadzira mold, kunyunguduka nekudururwa, kurapwa kwekupisa, uye kunyatsogadzira machining, zvishwe zvemhinduro zvipfupi. Iye machinist anosangana nenzvimbo yakaoma anogona kufamba achidzokera kune foundry maneja ovaratidza. Vanogona kuona pamwe chete kana yaive nyaya yekutonhora yemunharaunda kubva mukuumbwa kana kusarongeka kwemetallurgical. Uku kugadzirisa kwekubatana hakugoneke neakakamukana ekutenga cheni apo bato rega rega rinopomera mumwe.
Nhoroondo yekambani yemakore makumi matatu mukukanda uye kugadzira, seQSY's, inotaura zvakajeka nezvekubatanidza uku. Pamusoro peiyo nguva yakatarwa, ivo pasina mubvunzo vaona zvese zvinogoneka kukanganisa uye kutadza maitiro. Irwo ruzivo rwemasangano runoturikira mukuronga kurinani kwepamberi. Ivo vanoziva, semuenzaniso, nzira yekumisikidza chikamu chakaoma mu mold kudzikisa shrinkage munzvimbo dzakakosha, kana maitiro ekugadzira chigadziriso chinonongedza se-kukanda nzvimbo kuti kuwedzere machining kubviswa kwemasheya munzvimbo dzakakodzera. Urwu harusi ruzivo rwemabhuku; ruzivo rwemadzinza rwakawanikwa kubva mumakumi emakore ekugadzira zvikamu, kubvisa zvimwe, uye kudzidza chikonzero.
Kuinjiniya ari kutsvaga zvikamu izvi, izvi ndizvo zvisingabatike zvauri kutsvaga. Haisi yekungowana koti pakirogiramu. Izvo ndezvekubatana nemutengesi anobvunza mibvunzo nezve basa rechikamu, mamiriro emutoro, uye chimiro chayo nezvimwe zvikamu. Vanogona kupa zano rekuwedzera diki dhizaini rawakapotsa, kana kukurudzira radius yakakura kupfuura yako yakapinza kona yakapinza kudzivirira kumisa kushushikana uye kugadzirisa mold kuzadza. Iyi nhaurirano, yakadzika midzi mune inoshanda yekugadzira ruzivo, ndiyo inoshandura dhizaini kuita yakasimba, inogadzirwa, uye yakavimbika. giravhiti yakakanda simbi chikamu. Inofambisa hukama kubva pakutengeserana kuenda kune yekudyidzana, iyo, pakupedzisira, ndiyo nzira yaunoderedza nayo njodzi uye kuona kubudirira kweprojekiti.
Mafungiro Ekupedzisira: Nzira Yekugadziriswa Kwekugadzirisa
Magetsi anokandira simbi haazombove nekupenya, kwepamusoro-tekinoroji aura yekuwedzera kugadzira kana kuputika kumhanya kwekufa-kukanda. Inzira yakakura. Asi kukosha kwayo kuri mukushanduka kwayo, zvinhu zvenyama, uye, kana yaitwa nehunyanzvi, kuwirirana kunoshamisa. Chinangwa hachisi kukwana muchidimbu; iri kuwana chiyero chakakodzera chemutengo, kuita, uye nguva yekutungamira yeimwe indasitiri yekushandisa. Misungo yacho—kushata kugadzira chakuvhe, kubata zvinhu zvisiri izvo, kusadyisa zvakakwana—zvose zvinonyatsozivikanwa uye zvinodzoreka nokudzora maitiro akaomarara.
Iyo yekutora kune chero munhu anotsanangura zvikamu izvi kutarisa kupfuura iyo yekutanga kugona rondedzero. Tarisa humbowo hweiyo integrated process control, kubva kusimbi kusvika kumichina. Tsvaga nhoroondo inoratidza kudzika kwekugadzirisa matambudziko. Uye zvinonyanya kukosha, tora nguva. Bata iyo yekutanga semubatsiri-mugadziri, kwete chete mutengesi. Goverana zvinodikanwa zvinoshanda uye uve wakavhurika kune avo mazano ekugadzirisa dhizaini yekugadzira. Kudyidzana ikoko ndiko kukwevera kwechokwadi kunokwevera dhizaini yakanaka kusvika muchikamu chinobudirira, chinogara kwenguva refu.
Munyika inomhanya yakananga kudhijitari uye otomatiki mhinduro, kuchine nzvimbo yakakosha yeiyi analogi, kupisa-uye-simbi maitiro. Ndezvekunzwisisa uye kushandisa hunhu hwechisikigo hwezvinhu pazvinochinja mamiriro. Kuigadzirisa kunonzwa kushoma sekukunda kwepamusoro-soro uye kufanana nehunyanzvi hunodzidzira-izvo, munzira dzakawanda, zvichiri.
