Ts’ebetso ea moetlo oa ho koetlisa spheroidizing le mathata a teng a teng

Tloaelo ea spheroidizing ho koala kalafo e arotsoe ka mekhahlelo e ‘meli e latelang.

(1) Mothating oa ho itokisetsa spheroidization, tšepe e lokelang ho qhekelloa le ho koaheloa e futhumetse ho 30-50 ° C kaholimo ho ntlha ea bohlokoa mme e ts’oaroe bakeng sa lihora tse 1 ho isa ho tse 2 bakeng sa austenitization, e le hore li-carbide li qhibilihe ho ba austenite. Joale e pholile ka potlako ho ea tlase ho ntlha ea bohlokoa Ac ho fumana lithollo tse ntle tsa kristale le ho ntlafatsa li-carbide ho tsamaisa spheroidization e latelang. Ho hloekisa lithollo le ho hloekisa li-carbide ho etsa maemo a boreleli a spheroidization, ka hona sethala sena se bitsoa mohato oa boitokisetso ba spheroidization. Hangata, sethala sa ho itokisetsa spheroidization se qala ho futhumatsa tšepe ho isa ho 850 ~ 900 ° C le ho e ts’oara 1 ~ 2h, e nkang lihora tse ka bang leshome ka kakaretso.

(2) Boemong ba spheroidizing, tšepe e matlafatsoa mme e pholile ho 700 ~ 750 ° C mme e bolokiloe lihora tse ka bang 10, e le hore li-carbide tse ntlafalitsoeng li tla theha li-carbide tse chitja ka ho kopanya le ho hasanya, ho phethela ts’ebetso ea spheroidizing le annealing.

Ho tsoa ts’ebetsong e kaholimo ea spheroidization, ho ka fihlela qeto ea hore tšepe ea eutectoid le tšepe ea hypereutectoid e nang le khabone e phahameng, tlasa ts’ebetso ea mocheso o phahameng nako e telele, pele e baka ho ts’oaea le ho cheka hoa tšepe holim’a tšepe, e fokotsang boleng ba bokaholimo ba tšepe; Ho boloka mocheso ka nako ea spheroidization ho eketsa ts’ebeliso ea matla le ho fokotsa ts’ebetso ea tlhahiso. Ka hona, ho ts’epa hore ts’ebetso e potlakileng ea ho koala spheroidizing e ka ithutoa ho khutsufatsa potoloho e kenyang matla le ho ntlafatsa boleng ba tšepe.