the more is cast ingot size, the more bulky is the structure, so powder metallurgy become the main research technology.
因此,粉末冶金技术就成为研究铍材料的主要工艺。
the invention solves the problem that cast ingot produces cracks caused by stress concentration as the existing crystallizer is not even in water-cooling distribution.
本发明解决了现有的结晶器因水冷分布不均,致使铸锭因应力集中产生铸锭裂纹的问题。
the composition design, melting process theory and defect control on cast ingot of aluminium standard sample were described in this paper.
阐述了铝块状光谱标样的成分设计、标样熔炼工艺理论及铝标样铸锭缺陷的控制。
the mathematic models of the temperature holding of continuous cast ingot in the pit and the in line control are established, and the temperature holding effectiveness of the pit discussed.
建立了保温坑内连铸坯保温过程数学模型及在线控制数学模型,并讨论了保温坑的保温效果。
the cast ingot is homogenizing treated in a vacuum heat treating furnace at 850-1020 deg. c for 6-15 hr before being cooled inside the furnace to room temperature.