Sarudzo yekupisa tembiricha yePC simbi induction yekupisa vira

(1) Nheyo yekusarudza tempering tembiricha yePC simbi Iyo yakanakisa chimiro chePC simbi pasi pemamiriro ebasa yakatsiga troostite. Sangano iri rine yakanakira kuramba kusagadzikana kutandara. Hukama huri pakati pekupisa kwetembiricha uye michina zvivakwa zveatatu epasi-alloy steels epamusoro, epakati nepasi. Yakadzora Troostite inogona kuwanikwa nekupisa pakati nepakati tembiricha (350 ~ 500 ° C), uye yayo yekuzorora chiyero idiki diki, ndiko kuti, kuramba kushushikana kwekuzorora ndiko kwakanyanya. Naizvozvo, PC simbi

Iko kusarudzwa kwetembiricha yekupisa yeiyo induction kupisa chira inofanirwa kuona kuti iyo yakadzimwa martensite inoshandurwa kuita troostite, ndiko kuti, yepakati tembiricha tempering inoshandiswa. Iyo tembiricha yekupisa yesilicon ingot yakaderera-alloy PC simbi induction yekupisa choto ndeye 400-500 ° C.

(2) Iyo dhizaini yekushushikana yekuzorodza kuramba kwePC simbi Iko kushushikana kutonhodza kusagadzikana kwesimbi ndiyo michina chivakwa chinoenderana nehupenyu hwebasa rePC simbi. Icho chinoreva maitiro ayo iyo elastic deformation yesimbi inoshandurwa kuita deformation yepurasitiki pasi pekunetsekana. Iyo inomhanyisa iyo shanduko maitiro, iko kukuru kwepurasitiki deformation yesimbi uye iko padyo iko iko kutyoka. Kana iyo deformation yepurasitiki yasvika pamuganhu, simbi inoputsika. Naizvozvo, zvinotarisirwa kuti yakaderera kumhanya kweshanduko iyi, hurefu hwehupenyu hwesimbi. Nechikonzero ichi, zvinodikanwa kuti iwo zororo zororo rezvinhu zvesimbi idiki sezvinobvira. Nzira inoshanda yekudzora zororo rekuzorora ndeyekuwedzera simba rezvibereko uye kuchengetedza kuomarara kwakanaka. Iko kushushikana kwekuzorora kuramba kwePC simbi kune hukama hushoma nemakemikari ayo. Izvo zvinowanzoenderana nesimbi yesimbigraphic yesimbi yakapera. Maitiro ekuongorora kwekushushikana kwekuzorodza kusagadzikana kweakatsamwa masisitimu eakadzima martensite anotevera.

Yakapfava troostite chigadzirwa chakadzikama pane tembiricha ine mwero uye ine yakanakisa kuramba kurwisa kushushikana kutandara. Yakapfava Troostite yakapararira kwazvo granular cementite chimiro chakagoverwa pane iyo flake simbi tambo muviri. Rudzi rwe microstructure runopa simbi simba repamusoro rekukohwa uye kumwe kuomarara, uye kurwisa kwakasimba kuchipurasitiki.

Yakapfava sorbite chibereko chekupisa kwakanyanya tempering, uye kusagadzikana kwayo kwekuzorora kusagadzikana kwakadzikira zvishoma pane iyo yeiyo tempered troostite. Yakapfava sorbite chimiro chakaumbwa ne polygonal ferrite uye granular cementite. Simba rayo rakakwira, asi nekuda kwehupamhi hwepurasitiki uye kuomarara, kuramba kwayo deformation yepurasitiki haina kusimba.

Yakadzora martensite ndeye yakaderera-tembiricha yakatsamwa chigadzirwa, uye kumirisana kwayo nekushushikana kwekuzorora ndiko kwakanyanya. Chikonzero chikuru ndechekuti tempered martensite is supersaturated solid solution yekabhoni mune ferrite. Kunyangwe simba rayo uye kuomarara kwakakwira, iri brittle, isina kugadzikana uye inokanganisa shanduko yesimba, zvichikonzera kushomeka kwekushushikana kwekuzorora kuramba.

Zvichienderana neongororo iri pamusoro, Troostite yakapfava ine hunhu hwesimba dhizaini uye kuenzanisa kwakaringana kweanosiyana michina zvivakwa, kuitira kuti iyo simbi ine yakanakira kuramba kurwisa kushushikana kutandara.