Tempering inzira yekupisa yekupisa iyo iyo workpiece inodzimwa uye inopisa kune tembiricha iri pasi peAc1 (iyo yekutanga tembiricha yepearlite kune austenite shanduko panguva yekupisa), inobatwa kweimwe nguva yenguva, uye yozotonhodzwa kusvika kukamuri tembiricha.
Kupisa kunowanzo kuteverwa nekudzima, nechinangwa che:
(a) Bvisa zvakasara kushushikana kunogadzirwa panguva yekudzima workpiece kudzivirira deformation uye kuputika;
(b) Gadzirisa kuoma, simba, plastiki, uye kuoma kweiyo workpiece kusangana nezvinodiwa zvekushanda zvekushandisa;
(c) Kurongeka kwakagadzikana uye ukuru, kuve nechokwadi chechokwadi;
(d) Kuvandudza uye kuwedzera mashandiro ekugadzirisa. Naizvozvo, kudziya ndiyo yekupedzisira yakakosha maitiro ekuwana inodiwa kuita kweiyo workpiece. Nekubatanidza kudzima uye kupisa, izvo zvinodiwa zvemichina zvinogona kuwanikwa. [2]
Zvinoenderana nematembiricha ekupisa, kupisa kunogona kukamurwa kuita yakaderera tembiricha tembiricha, yepakati tembiricha tembiricha, uye yakanyanya kupisa tembiricha.
Tempering classification
Kudzika kwekushisa
Kupisa kweiyo workpiece pa 150-250 °
Chinangwa ndechekuchengetedza kuomarara kwakanyanya uye kupfeka kuramba kweakadzimwa workpiece, kuderedza kusara kunetseka uye brittleness panguva yekudzima.
Tempered martensite inowanikwa mushure mekupisa inoreva iyo microstructure inowanikwa panguva yakadzika-tembiricha kudziya kwekudzima martensite. Mechanical zvivakwa: 58-64HRC, kuomarara kwakanyanya uye kupfeka kuramba.
Chiyero chekushandisa: Inonyanya kushandiswa mumhando dzakasiyana-siyana dzepamusoro kabhoni simbi maturusi, maturusi ekucheka, maturusi ekuyeresa, molds, rolling bearings, carburized and surface kudzimwa zvikamu, etc. [1]
Tembiricha iri pakati nepakati
Kupisa kweiyo workpiece pakati pe350 ne500 ℃.
Chinangwa ndechekuwana yakakwira elasticity uye goho poindi, nekuoma kwakakodzera. Mushure mekupisa, troostite inodziya inowanikwa, iyo inoreva iyo duplex chimiro cheferrite matrix yakaumbwa panguva yemartensite tempering, uko yakanyanya kudiki spherical carbides (kana simentite's) inogoverwa mukati me matrix.
Mechanical zvivakwa: 35-50HRC, yakakwirira elastic muganho, goho poindi, uye kumwe kuoma.
Chiyero chekushandisa: chinonyanya kushandiswa kune zvitubu, zvitubu, kuforoma kunofa, maturusi ekushandisa, nezvimwe. [1]
Kupisa kwakanyanya
Kupisa kweworkpieces pamusoro pe500 ~ 650 ℃.
Icho chinangwa ndechekuwana yakazara mechini zvivakwa zvine simba rakanaka, plastiki, uye kuoma.
Mushure mekupisa, sorbite yakatsamwa inowanikwa, iyo inoreva duplex chimiro cheferrite matrix yakaumbwa panguva yemartensite tempering, apo madiki spherical carbides (kusanganisira simenti) anogoverwa mukati me matrix.
Mechanical zvivakwa: 25-35HRC, ine yakanaka yakazara mekinika zvivakwa.
Chiyero chekushandisa: Inoshandiswa zvakanyanya kune akasiyana akakosha anotakura zvinhu zvimiro, senge matanda ekubatanidza, mabhaudhi, magiya, uye shaft zvikamu.
The composite kupisa kurapwa maitiro workpiece quenching uye yakakwirira-tembiricha tembiricha inonzi quenching uye tempering. Kudzima uye kupisa hakugone kushandiswa chete kwekupedzisira kupisa kwekupisa, asiwo kune pre-kupisa kurapwa kwezvimwe zvikamu zvakaringana kana zvikamu zvakadzimwa.
Email:oiltools14@welongpost.com
Nyasha Ma
Nguva yekutumira: Nov-03-2023
