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 simbi yevira, wobva wawedzera carburizing agent, kuburikidza nekupisa kwesimbi yemvura, electromagnetic inomutsa kana kukonzeresa kunyungudutsa kunyunguduka kwekabhoni, chiyero chekudzoreredza chinogona kunge chiri makumi mapfumbamwe, kana iyo yakaderera tembiricha carburizing process, kureva kuti, chikamu chesimbi chinopisa chinenge chakanyunguduka. kamwe yakawedzerwa kune simbi yemvura, Panguva imwe chete, inotsikirirwa musimbi yemvura 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 yekuchaja chikamu che carburizing agent, carbon absorption rate inogona kusvika 90% -95%, carburizing agent mukunyunguduka usaite slag, zvikasadaro zviri nyore kuputirwa nekabhoni;
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 ikozvino inobvongodza yesimbi (simbi) mvura kana yekugadzira inobvongodza kunyungudutsa uye kutora chigadzirwa, iyo carbon absorption rate inenge 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, mhepo yakamanikidzwa iri nyore, uye okisijeni mumhepo yakadzvanywa yekupisa kuti ibudise CO, kemikari inopisa kupisa inogona kubhadhara chikamu chekudonha kwetembiricha, uye CO yekudzikisa mamiriro ekunze inobatsira kuvandudza iyo carburization mhedzisiro.
2, kushandiswa kwesimbi carburizing agent
100-300 graphite poda carburizing agent inogona kuiswa mupakeji, kana kubva muchigero chesimbi nekuyerera mukati, mushure mekunge simbi yabuda mumvura yanyatsomutswa, nepazvinobvira kunyungudutsa kabhoni kunyura, mwero wekudzoreredza kabhoni ungangoita 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 iron yekupisa kushanda yakasanganiswa nekufunga, kuve nechokwadi chekuti iyo carburizer mune yemvura simbi yekunyudza nguva ye10Min, kune rimwe divi kuburikidza nemagetsi inokurudzira mhedzisiro ye carburizer yakazara diffusion absorption, kuve nechokwadi chekunyudza. 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