Paunonzwa 'AISI 8620 yekukandira mari', iyo pfungwa yekukurumidza kune vakawanda ndeyekuviga zvivakwa zvegiya kana shafts. Ndizvozvo, asi ndipo panotangirawo kuwedzeredza. Muchokwadi, kutsanangura 8620 yekukandira hakusi kungomaka bhokisi rezvinhu padhirowa; iri kuzvipira kune cheni yekugadzira apo hunyanzvi hwemuvambi mukubata yakaderera-alloy simbi yekusimbisa maitiro inova yakakosha semakemikari pachayo. Ndakaona magadzirirwo akawandisa achikundikana kwete nekuti 8620 yaive sarudzo isiriyo, asi nekuti maitiro ekukanda akange asina kurongedzerwa kune ayo chaiwo maitiro, zvichitungamira kune isingaenderane kesi kuoma kana yakavanzika shrinkage. Iyi haisi nyaya yedzidziso; idambudziko remaoko.
The Alloy's Nature uye Casting Compromise
AISI 8620 is workhorse nickel-chromium-molybdenum simbi, inorumbidzwa nekusimba kwayo kwepakati uye mhinduro yakavimbika kune carburizing. Zvisinei, maitiro ayo ekukanda akasiyana nemaitiro ayo akaitwa. Chinokosha ndechekugadzirisa kabhoni gradient kubva pakutanga. Mukudyara kwekudyara, kukurumidza kutonhora kwezvikamu zvitete dzimwe nguva kunogona kutungamira kune yakatsetseka-kupfuura-inotarisirwa se-yakandwa chimiro, icho chakanaka, asi zvakare inowedzera njodzi ye micro-porosity kana iyo gating uye yekudyisa system isina kugadziridzwa kune iyi chaiyo alloy's solidification renji. Iwe haugone kungoshandisa imwe chete dhizaini yekusimudza yaungashandisa kune yakapfava kabhoni simbi.
Ndinoyeuka purojekiti yeimba yekunzwa iyo yaida zvese zviri zviviri kudzvanywa uye nekupfeka-inodzivirira pamusoro. Mutengi akasimbirira aisi 8620 investment casting. Mabheji mashoma ekutanga akapfuura macheki ediki asi akakundikana mukuyedzwa kwekumanikidza. Nyaya yacho? Isolated micro-shrinkage. Isu takanga tisina kunyatso tsanangura kuti molybdenum muna 8620 inoshandura sei zvishoma zvinodiwa zvekudyisa. Kugadziriswa kwacho kwaisanganisira kwete kungokudza makwikwi, asi kuaisa patsva kuti agadzire kusimba kwakawanda kune zvikamu zvakakosha. Chaive chiyeuchidzo chekuti iyo alloy's spec sheet hainyore hunhu hwayo hwekukanda.
Apa ndipo apo ruzivo rwenguva refu yekuwana inobhadhara. Kambani yakadai Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), iine makumi matatu emakore emugoko uye kuisa mari, ingadai yakavaka raibhurari ye data rakadaro. Ivo vaizoziva, semuenzaniso, kuti kune 8620, tembiricha yekudira inoda hwindo rakaomarara pane kune mamwe akaderera-alloy simbi kuenzanisa fluidity uye saizi yezviyo. Ndirwo ruzivo rwakanyanya, rwekuita-chairwo runoparadzanisa kukanda kunoshanda kubva kune yakavimbika-yepamusoro.
Iko Maitiro Anoita kana Kuputsa Chikamu
Iko kukwezva kwekudyara kwekudyara kwe8620 zvikamu zviri pachena: yakaoma geometries, yakanakisa yepamusoro pekupedzisira, uye padyo-net-chimiro fomu. Asi iyo shell-yekugadzira maitiro pachayo inopindirana nealloy. Iyo ceramic shell inofanirwa kunge iine yakanyanya kugadzikana yekupisa kudzivirira kuita nemanganese uye chromium muna 8620 panguva yekudira, izvo zvinogona kutungamira kune kuremara kwepamusoro. Iyo yakashata-yemhando goko kana isiriyo pre-kupisa tembiricha inogona kuunza pamusoro carburization kana decarburization kunyangwe chikamu chisati chapinda muchoto chinopisa, kukanda kunze kwese kuomesa kuverenga.
Post-casting, mugwagwa wakaenzana nuanced. Kubvisa kushushikana kunenge kusingagone kutaurirana usati wagadzira, kunyanya kune zvikamu zvine mativi akasiyana-siyana. Ndakaita chikanganiso chekuchisvetuka kamwe chete pane prototype batch yekubatanidza maoko, ndichifungidzira se-kukanda kushushikana kwakadzikira. Mhedzisiro yacho yaive kukanganisa panguva yekugadzira yakaoma iyo yakarasa hafu yebhechi. Mutengo weiyo dhizaini yekuzorodza idiki kana uchienzaniswa nemutengo wezvimedu zvemuchina.
Ipapo kunouya kupisa kurapwa. Muitiro wakajairika ndeye carburizing uye kudzima. Asi yekutanga kukanda mhando inoraira zvese. Kana paine chero dendritic segregation kana madiki kubatanidza mabhendi kubva pakukanda muitiro, kudzima kunogona kuawedzeredza, zvichiita kuti kusaenzana kuoma kana kudzima kutsemuka. A akanaka muvambi shamwari haangobudisi kukanda; ivo vanozopa yakasimbiswa yekupisa kurapwa protocol zvichienderana nemamiriro chaiwo ekukanda. Kubva pane tsananguro yeQSY yekushanda neakakosha alloys, iyi nzira yakabatanidzwa kune zvinhu uye maitiro ingangove chikamu chakajairwa chesevhisi yavo, iyo yakakosha kune chinhu chakaita se8620 uko yekupedzisira zvivakwa zvinogadzirwa.
CNC Machining: The Critical Finish
Apa ndipo apo 'investment' inobhadhara zvechokwadi. Chikamu chakakandwa zvakanaka 8620 chinofanirwa kunge chine mari shoma yekubvumidzwa, asi iyo stock inofanirwa kunge yakafanana. Iwo machinability e-as-cast 8620 akasiyana neayo annealed akaitwa mumwe wake. Ganda rakakandwa rakaomarara uye rinogona kubvongodza pamidziyo. Maitiro akasimba anoshandisa kucheka kwakapfava kupaza nemukati meganda risati raenda kune rinorema machining. Kuedza kuchengetedza nguva nekushandisa kugadzirwa zvinhu maparamendi kunowanzo tungamira mukupfekedzwa kwechishandiso uye kusatendeseka kwepamusoro pachiso chekupedzisira chakagadzirwa.
Kune chikamu chakaita seyekutakura nyika inotakura, majenari anotakura uye splines anogadzirwa mushure-kukanda. Kubatana kwekuoma kwekukanda uye kusavapo kwemukati voids kunokosha. Kana maitiro ekukanda akaunza porosity pazasi pepamusoro, machining pass anogona kuivhura, ichigadzira kurambwa. Ichi ndicho chikonzero kudzora kwemaitiro muchikamu chekuwana chirikudyara mukugadzira goho. Mutengesi anopa akabatanidzwa Investment casting uye CNC machining, seQSY, ine yakananga mhinduro loop. Chikwata chavo chekugadzira michina chinogona kukurumidza kuratidza kukanganisa kunoramba kuchiitika kuchikwata chavo chevatangi, zvichigonesa gadziriso yemidzi yekuti shopu yemuchina yekunze inogona kungotaura se 'batch rakashata'.
Synergy ndiyo yakakosha. Ivo vanogona kuronga kutaridzika kwekukanda uye nzvimbo dzegedhi vaine ekupedzisira machining zvigadziriso mupfungwa, dzimwe nguva kunyange kukanda mune yekutanga datum maficha. Iyi nhanho yekubatanidza inoderedza yakazara nguva yekugadzira uye mutengo, kushandura mbishi yekukanda kuita yakapedzwa, yakakwirira-chaiyo chikamu zvinobudirira.
Real-World Applications uye Misapplications
8620 kushambadzira kwekudyara kunopenya mumashandisirwo anoda kuomarara kosi uye yakaoma, isingapfekere nzvimbo. Funga nezvemiviri ye hydraulic valve, uko zviteshi zvemukati zvinoda nzvimbo yakaoma kudzivirira kukukurwa kubva mukuyerera kwemvura, asi muviri unoda simba rekubata kumanikidza. Kana zvimwe zvisiri-magineti sensor zvikamu uko zvimiro zvayo zvakanaka. Nekudaro, isarudzo isina kunaka yesevhisi yekupisa kana nzvimbo dzinotyisa zvakanyanya-ndipo panouya nickel kana cobalt-based alloys, nzvimbo QSY's material portfolio inovhara zvakare.
Kushandisa zvisizvo kuishandisa uko kuburikidza-kuomesa kunodiwa. 8620 isimbi inoomesa nyaya. Ndakaona dhizaini ichidaidza kuti 8620 kukanda kuve nekuomeswa kusvika ku40 HRC. Zvinogona kuitwa, asi hausi kushandisa mukana wayo wekutanga, uye unogona kushandirwa zvirinani ne4140 kana 4340 giredhi rakagadzirirwa izvozvo. Sarudzo inofanirwa kutungamirwa nebasa, kwete kungoziva chete.
Iko kuverenga kwehupfumi kunokosha zvakare. Kune akareruka, akakura maumbirwo, kuforoma kana kutogadzira kubva kubhawa stock inogona kunge yakachipa. Kukosha kwe aisi 8620 investment casting yakavhurwa neakaomarara, 3D geometries izvo zvingada yakakura machining kana akawanda-chikamu gungano neimwe nzira. Mutengo wepamusoro wekushandisa patani yewakisi unoenderana nekudzikiswa kwemuchina wepasi nekusevha kushanda.
Kufambisa Supplier Selection
Kusarudza mutengesi we8620 investimendi castings haisi yekungotora quote. Inyanzvi yekuongorora. Iwe unofanirwa kubvunza nezve chiitiko chavo chakanangana neakaderera-alloy simbi: Ndeipi yavo yakajairika inclusion control level? Ivo vanogadzira sei gedhi reaya alloys? Vanogona here kupa metallurgical mishumo kusanganisira saizi yezviyo uye kuomarara bhendi bvunzo? Chido chemutengesi kukurukura idzi ruzivo chiratidzo chakanaka chekudzika kwavo.
Kureba kwekambani mumunda, senge QSY yemakore makumi matatu nhoroondo, inowanzoenderana neyakaunganidzwa-yekugadzirisa matambudziko ruzivo. Vangangove vakasangana-uye vakagadzirisa-nyaya dzegasi porosity muzvikamu zvakakora kana kuwana yakakwana yekupedzisa pamusoro penzira yakaoma cored. Chiitiko ichi chinoshandura kune zvishoma zvinoshamisa panguva yekugadzirwa.
Pakupedzisira, tsvaga kubatanidzwa. Mudiwa akakodzera anotungamira rwendo kubva kusimbi yakanyungudutswa kusvika pakupera chikamu. Izvi zvinovimbisa kuzvidavirira. Kana dambudziko rekupisa kupisa rikamuka, hapana kusajeka pamusoro pekuti yaive chimiro chekukanda kana kutenderera kwekupisa. Kune zvakakosha zvikamu, iyi isina musono kudzora kubva shell mold casting kusvika machining ekupedzisira haisi umbozha; chinhu chinodiwa kuti uwane kuita kwakafanana uko AISI 8620 inokwanisa kuburitsa.
