Kana zvasvika kune kupisa-resistant simbi castings, tinofanira kutaura indasitiri yekurapa kupisa; kana zvasvika pakupisa kupisa, tinofanirwa kutaura nezve moto wemumaindasitiri matatu, kudzima, kudzimisa, uye kudzikisira. Saka ndeupi musiyano pakati pevatatu?
(Poshi). Mhando dze annealing
1. Kuzadza annealing uye isothermal annealing
Complete annealing inonzi zvakare recrystallization annealing, inowanzonzi annealing. Iyi annealing inonyanya kushandiswa kukanda, forgings uye inopisa-yakakungurutswa profiles eakasiyana kabhoni simbi uye alloy simbi ane hypoeutectoid nziyo, uye dzimwe nguva inoshandiswa kune akasungwa zvimiro. Iyo inowanzo shandiswa seyekupedzisira kupisa kupisa kwemamwe asina kukosha maworkpieces, kana seye pre-kupisa kurapwa kwemamwe maworkpieces.
2. spheroidizing annealing
Spheroidizing annealing inonyanya kushandiswa kune hypereutectoid kabhoni simbi uye alloy chishandiso simbi (semhando dzesimbi dzinoshandiswa mukugadzira maturusi ekucheka, maturusi ekuyeresa, uye mold). Chinangwa chayo chikuru ndechekudzikisa kuoma, kuvandudza machinability, uye kugadzirira kudzima kunotevera.
3.Stress relief annealing
Kuderedza kushushikana kwepfungwa kunonzi zvakare kudzika-tembiricha annealing (kana kudziya kwakanyanya). Rudzi urwu rwe annealing runonyanya kushandiswa kubvisa kusara kwekushushikana mu castings, forgings, welding parts, heat- rolled parts, cold-drawn parts, nezvimwewo imwe nguva yenguva kana panguva dzinotevera dzekucheka.
(Piri). Quenching
Nzira huru dzinoshandiswa kuvandudza kuoma kupisa, kuchengetedza kupisa, uye kutonhora nekukurumidza. Iyo inonyanya kushandiswa kutonhora media ndeye brine, mvura uye mafuta. The workpiece kudzimwa mumvura munyu zviri nyore kuwana yakakwirira kuomarara uye yakatsetseka pamusoro, uye haatarisiri nyoro makwapa asina kudzimwa, asi zviri nyore kukonzera zvakakomba deformation of workpiece uye kunyange kuputika. Kushandiswa kwemafuta semudziyo wekudzima kwakakodzera chete kudzima mamwe masimbi alloy kana madiki-saizi kabhoni simbi workpieces uko kugadzikana kwe supercooled austenite yakakura.
(Tatu). Tempering
1. Deredza brittleness uye kubvisa kana kuderedza kushushikana kwemukati. Mushure mekudzima, zvikamu zvesimbi zvichave nekunetseka kukuru kwemukati uye brittleness. Kana vasina kushatirwa nenguva, mativi esimbi anowanzo kanganisa kana kutotsemuka.
2. Wana anodiwa ma mechanical properties ye workpiece. Mushure mekudzima, iyo workpiece ine yakakwirira kuoma uye yakakwirira brittleness. Kuti usangane nezvinodiwa zvakasiyana-siyana zvekushanda kweakasiyana maworkpieces, kuomarara kunogona kugadziridzwa kuburikidza nekudziya kwakakodzera, kuderedza brittleness uye kuwana kuomarara kunodiwa. Plasticity.
3. Yakagadzikana workpiece saizi
4. Kune mamwe masimbi alloy ayo akaoma kupfava neannealing, kupisa-kupisa kwepamusoro kunowanzoshandiswa mushure mekudzima (kana kuti normalizing) kuunganidza zvakanaka carbides musimbi uye kuderedza kuoma kufambisa kucheka.
Nguva yekutumira: Kubvumbi-10-2024