The results show that the spheroidalannealing structure in which the size and spacing of carbide particles are bigger can he gained through suitably rising the spheroidalannealing temperature.
结果表明：适当提高球化退火温度，可获得碳化物粒子尺寸及间距均较大的球化退火组织。
2
The microstructure morphology of spheroidal graphite cast steel after as-casting, annealing, normalizing, forging was investigated emphatically in this paper.
重点分析了球墨铸钢铸态、退火、正火、锻造后的组织特征。
3
Experiments show that the rapid prepare heat treatment spheroidization annealing (conditioning) get good results of spheroidal graphite.