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利用计算机数值模拟技术与实验相结合，研究了喷射成型过程中棒坯的生长机制。结果表明:在雾化沉积棒坯过程中，当工艺参数合适且接收器后退速度＜ ·ｃｏｓф 时，在经过一个瞬时区域后，沉积态棒坯将以等直径的方式生长．在其它工艺参数恒定的条件下，调整接收器的后退速度 ，可制备出不同直径的沉积态棒坯．在结束阶段，随着中间包内金属熔体液面高度的降低，熔体质量流率不断减少，喷射轴中心的喷雾密度函数 ａ下降，此时，依靠相应降低接收器的后退速度 仍可保持沉积态棒坯以预定直径生长
The combination of computer numerical simulation and experiment was used to study the growth mechanism of billet during injection molding. The results show that when the process parameters are atomized and the receding speed of the receiver is <· cosф, the deposited billets will grow in an equal diameter after passing through an instantaneous area. In other conditions constant process parameters, adjust the receding speed of the receiver can be prepared in different diameters of the deposited state of the billet. At the end of the process, as the molten metal level in the tundish decreases, the melt mass flow rate decreases and the spray density function a at the center of the jet decreases. At this point, the retraction speed of the receiver can be maintained The as-deposited slab grows with a predetermined diameter