Nzira yekupinda muchoto
Carburizing agent inokodzera kunyungudutswa muchoto chemukati, asi iyo chaiyo yekushandisa haina kufanana zvinoenderana nezvinodiwa nemaitiro.
(1) Muchoto chepakati-frequency kunyunguduka uchishandisa carburizing agent, zvinoenderana nereshiyo kana kabhoni yakaenzana zvinodiwa nechinhu chakawedzerwa kune chikamu chepasi chechoto, chiyero chekudzoreredza chinogona kusvika kupfuura 95%;
(2) mvura yesimbi inonyunguduka kana huwandu hwekabhoni husina kukwana kugadzirisa nguva yekabhoni, tanga watamba bhiza rechoto, wobva wawedzera carburizing agent, kuburikidza nekudziya kwesimbi yemvura, electromagnetic inomutsa kana kuti artificial kusimudzira kunyungudutsa carbon absorption, chiyero chekudzoreredza. inogona kunge inosvika makumi mapfumbamwe, kana iyo yakaderera tembiricha carburizing process, kureva kuti, iyo yekuchaja inonyungudusa chete chikamu chesimbi yakanyungudutswa tembiricha yakadzikira, iyo carburizing agent yakambowedzerwa kune simbi yemvura, Panguva imwecheteyo, inotsikirirwa mumvura. simbi ine chaji yakasimba kuti ichengetedze kubva pamusoro pesimbi yemvura. Iyi nzira inogona kuwedzera carburization yesimbi yemvura neinopfuura 1.0%.
Kushandiswa kwakakodzera kwecarburizing agent mu induction furnace
1, kushandiswa kwe5T kana yakawanda yevira yemagetsi, iyo mbishi haina kugadzikana uye yakagadzikana, tinokurudzira nzira yekuwedzera yekuparadzira. Zvinoenderana nezvinodiwa zvekabhoni yemukati, zvinoenderana nechiyero chezviyo, iyo carburizing agent uye simbi yekuchaja nebheti rega rezvinhu kuti ubatanidze choto muchikamu chezasi, dhizaini yesimbi inochaja chikamu che carburizing agent, carbon absorption rate inogona. kusvika 90% -95%, carburizing agent mukunyunguduka usaite slag, zvimwe zviri nyore kuputirwa mumarara slag, zvichikanganisa kutorwa kwekabhoni;
2. Iyo yepakati frequency induction furnace inosvika 3T inoshandiswa, uye iyo yakasvibira haina imwe uye yakagadzikana. Tinokurudzira nzira yekuwedzera yepakati. Kana chidimbu chidiki chesimbi yakanyungudutswa yakanyungudutswa kana kusara muchoto, iyo carburizing agent inowedzerwa pamusoro pesimbi yakanyungudutswa mune imwe nguva, uye simbi yekuchaji inowedzerwa nekukurumidza. Iyo carburizing agent inotsikirirwa musimbi yakanyungudutswa, kuitira kuti iyo carburizing agent inosangana zvizere nesimbi yakanyungudutswa, uye mwero wekunyura unodarika 90%;
3, kushandiswa kwechoto chidiki chepakati frequency yemagetsi, zvigadzirwa zvine nguruve iron uye zvimwe zvakakwirira kabhoni zvinhu, isu tinokurudzira carburizing agent kugadzirisa zvakanaka. Mushure mekunyunguduka kwesimbi/simbi yakanyungudutswa, gadzirisa kabhoni yemukati, inogona kuwedzerwa pamusoro pesimbi/simbi yakanyungudutswa, kuburikidza needdy yazvino inobvongodza yesimbi (simbi) mvura kana kuti simbi inokonzeresa kunyunguduka nekunyudza chigadzirwa, mwero wekunyudza kabhoni uri. vanenge 93%.
Kunze kwechoto carburization nzira
1. Pfaya graphite poda mukati mebhegi
Graphite poda senge carburizing agent, ichivhuvhuta muhuwandu hwe40kg/t, inogona kutarisirwa kugadzira iyo kabhoni yemukati memvura iron kubva pa2% kusvika 3%. Sezvo kabhoni yemukati yesimbi yemvura yakawedzera zvishoma nezvishoma, chiyero chekushandiswa kwekabhoni chakadzikira. Tembiricha yesimbi yemvura isati yaitwa carburization yaive 1600 ℃, uye avhareji tembiricha mushure mecarburization yaive 1299 ℃. Graphite poda carburization, inowanzo shandisa nitrogen semutakuri, asi mumamiriro ekugadzirwa kwemaindasitiri, mweya wakatsikirirwa uri nyore, uye okisijeni mumhepo yakadzvanywa yekupisa kuti ibudise CO, kemikari inogadzirisa kupisa inogona kubhadhara chikamu chekudonha kwekushisa, uye CO kuderedza mhepo. inobatsira kuvandudza iyo carburization effect.
2, kushandiswa kwesimbi carburizing agent
100-300 graphite poda carburizing agent inogona kuiswa mupakeji, kana kubva mugomba resimbi nekuyerera mukati, mushure mekunge simbi yabuda mumvura yanyatsomutswa, nepazvinogona napo kunyungudutsa kabhoni kunyura, mwero wekudzoreredza kabhoni wave kuda. 50%.
Mukushandiswa kwecarburizing agent inofanirwa kuterera kune dambudziko
Kana iyo nguva yekuwedzera ye carburizing agent ichiri kumberi, zviri nyore kuisungirira padyo nepasi pechoto, uye iyo carburizing agent yakasungirirwa pamadziro echoto hazvisi nyore kusanganiswa musimbi yemvura. Pane zvinopesana, kuwedzera nguva yakanonoka, icharasikirwa nemukana wekuwedzera kabhoni, zvichikonzera kunyunguduka, kupisa nguva inononoka. Izvi hazvingononoke nguva yekuongorora nekugadziriswa kwemakemikari, asiwo zvinokanganisa kukuvadzwa kunokonzerwa nekupisa kwakanyanya. Naizvozvo, carburizing agent kana mukuita kwekuwedzera simbi kuchaji zvishoma nezvishoma kuti ubatane.
Zvakadai senge mune yakakura yekuwedzera yekuwedzera, inogona kusanganiswa nechoto chekupinza kana iyo yemvura simbi yekupisa kushanda yakasanganiswa nekufunga, kuve nechokwadi chekuti iyo carburizer mune yemvura simbi yekunyudza nguva ye10Min, kune rumwe rutivi kuburikidza ne electromagnetic inomutsa. Mhedzisiro yecarburizer yakazara kunyura kunyura, kuve nechokwadi chekunyura. Kune rumwe rutivi, huwandu hwenitrogen hunounzwa mucarburizer hunogona kuderedzwa.
Usawedzera kamwe chete, wedzera mabheti, uye pakupedzisira unyunguduke chikamu, isa chikamu chesimbi inopisa (inenge pakiti) muhomwe, uye wozodzokera kuchoto carburizer 1-2 nguva, uye ipapo slag, wedzera alloy.
Pane zvinhu zvakati kuti zvinofanira kutariswa:
1. Carburizing agent yakaoma kutora (pasina calcination);
2, carburizing agent ash particle kugovera haisi yunifomu;
3. Kubatana kunonoka;
4. Nzira yekubatanidza haina kururama, uye kubatanidzwa kwe layered kunogamuchirwa. Dzivisa girazi resimbi yemvura uye slag yakawandisa kana yawedzerwa;
5. Edza kusashandisa zvinhu zvine ngura zvakawandisa.
Hunhu hwemhando yepamusoro carburizing agent
1, saizi yepakati iri pakati nepakati, iyo porosity yakakura, iyo yekunyura inokurumidza.
2. Yakachena kemikari inoumbwa, yakakwira kabhoni, yakaderera sarufa, idiki kwazvo inokuvadza zvikamu, yakanyanya kunyura.
3, chigadzirwa graphite crystal chimiro chakanaka, kuvandudza yepakutanga mvura simbi nucleation kugona. Wedzera huwandu hwenodular iron nodules muinoculation, uye wedzera iyo graphite nucleus mumagetsi choto chemvura yesimbi. Natsa uye kunyange kugovera fossil ingi mu castings.
4. Kuita kwakanakisa uye kugadzikana.
Kusarudzwa kweakakodzera carburizing agent kunobatsira kuderedza kunyungudutsa mari yekugadzira, kuvandudza kunaka kwekunyungudutsa simbi uye kukanda, kuitira kuti kunyungudutsa chirimwa, kukanda.
Nguva yekutumira: Zvita-02-2022