Magadzirirwo eSimbi Castings
Yakatumirwa naAdmin
Ichi chinyorwa chinokurukura zvivakwa uye alloying zvinhu zvesimbi uye mashandisirwo avanoita mukugadzira simbi castings.Isu tichabatawo pamusoro pemitengo ine chekuita nesimbi castings.Verenga kuti udzidze zvakawanda!Pazasi pane matanho akasiyana anobatanidzwa mukugadzira simbi yekukanda.Kana wapedza, unogona kubuda uye kutenga simbi yako casting.Akanyorwa pazasi mamwe matanho akakosha anosanganisirwa mukugadzirwa kwesimbi.Alloying zvinhu musimbiSimbi inoumbwa neakasiyana-siyana alloying zvinhu izvo zvinonatsiridza mashandiro ayo.Muchikamu che austenite, ivo vakada kugovaniswa zvakafanana.Apo iyo austenite inopisa kunharaunda ye austenitic, inowanzoora kuva musanganiswa weferrite uye carbide.Iyo carbide yekugadzira chinhu inofarira kupinda muchikamu chesimenti.Zvimwe zvinhu zvinoumba alloy zvinogovaniswazve pakati pezvikamu zveferrite necementite kuburikidza nekupararira.Ivo zvakare vanoita iyo austenite shanduko kuita pearlite yakaoma uye kuwedzera nguva inodiwa kuti iite.Nzira yekugadzira simbi castingsMaitiro ekugadzira masimbi esimbi anosanganisira kudira simbi yemvura muforoma uye kuisiya ichioma.Pakupera kwekuita, tundish inenge isina chinhu uye tambo yakasimbiswa.Zvadaro, mipumburu inofambiswa inofambisa cheni yekutangisa munzvimbo yechipiri yekutonhodza.Munguva iyi nhanho, ketani yekutanga inobviswa kubva kune tambo uye inotonhorera.Push-out roll inozokwidzwa kumusoro muforoma uye cheni yekutangisa inodhonzwa pasi.Zvinhu zvesimbiTensile zvimiro zvesimbi castings chiyero chekugona kwesimbi kutakura mitoro pasi pekunonoka kurodha mamiriro.Izvi zvimiro zvinoyerwa nekuisa mumiririri akakandwa sampu kune inodzorwa tensile kurodha, kureva kudhonza mauto pane tensile bar kusvika chikamu chakundikana.Nzvimbo yechikamu chidiki chemuchinjikwa mushure mekukundikana ndiyo chiyero chesimba rekukanda kwesimbi.Pamusoro peizvi, kukanda kwesimbi kunoratidza chiyero chakafanana chekuomarara semasimbi avo.Mutengo wesimbi castingsSimbi castings inogadzirwa uchishandisa akasiyana maitiro, uye mazhinji acho ari pasi pekuongororwa.Mumiriri akakandwa sampu inoiswa kune inodzorwa tensile kurodha.Izvi zvinosanganisira kuisa masimba ekudhonza kune imwe mugumo wetensile bar kusvika yakundikana.Iyo inoguma yakabhenda bar inoongororwa chero inopokana nekutsemuka.Imwe mhando yekuongorora ndeye kukanganisa kuyedza, iyo inosanganisira kuyera huwandu hwesimba rinodiwa kutyora yakajairwa notched sample.Iyo yakakwirira yezinga resimba, iyo inoomesa zvinhu zvekukanda.Kukanganiswa kwesimbi castingsChinhu chakakosha chemhando yesimbi castings ndiko kugona kwavo kurwisa kukanganisa panguva yekupisa-kurapa maitiro.Iyi nzira inozivikanwa se annealing.Tembiricha inodiwa pakukandira simbi iri pakati pe300掳C ne700掳C.Uhu huwandu hwetembiricha hunodiwa kune akakura castings ane yakakosha kushushikana zvinhu.Kupisa-kurapa kunowanzoitwa nekufanodziisa uye nekudzitonhodza zvishoma nezvishoma kana annealing yapera.
