Ductile hlau muaj lub zog siab, zoo toughness, thiab muaj zog hnav tsis kam, ua rau nws siv dav hauv kev tsim tsheb, tshuab tsim, thiab cov khoom siv engineering. Kev ua tau zoo ntawm spheroidizing kev kho mob ntawm ferrosilicon-magnesium (FeSiMg) ncaj qha cuam tshuam rau qhov kawg graphite morphology thiab microstructure zoo ntawm cov hlau ductile.
Thaum spheroidizing tau ua kom raug, graphite cov ntaub ntawv kuj puag ncig kheej kheej thiab yog sib npaug ntawm cov hlau matrix. Qhov no txo cov nyhuv ntawm flake graphite ntawm lub matrix, uas ua rau cov khoom zoo tag nrho.
Yog tias qhov zoo ntawm FeSiMg tsis ruaj khov, lossis yog tias magnesium rov qab tus nqi thaum lub sij hawm spheroidizing tsis txaus, nws tuaj yeem ua rau txo qis ntawm cov graphite spheres, qhov txo qis hauv spheroidization tus nqi, thiab txawm tias cov tsos ntawm cov qauv txawv txav xws li flake graphite, yog li cuam tshuam rau kev ua haujlwm ntawm cov casting.
Yog li ntawd, txawm hais tias FeSiMg tsuas yog cov khoom siv hauv cov khoom siv hlau, nws qhov kev tswj xyuas zoo yog qhov tseem ceeb. Cov tuam txhab lag luam yuav tsum tau tswj xyuas cov khoom sib xyaw ntawm cov hlau molten, FeSiMg muaj pes tsawg leeg, cov nyiaj ntxiv, lub sij hawm cov tshuaj tiv thaiv, thiab qhov zoo ntawm cov hlau molten tom qab spheroidization thaum lub sij hawm tsim khoom.
