摘要
参照国内外气压式定量浇注系统,进行保温炉结构设计。根据几何相似原理,用有机玻璃制作实验装置,对气压式定量浇注系统进行了水模拟实验研究。结果表明,浇注速度随着气流量的增加而增大,气流量恒定时,浇注量和浇注时间成正比;连续浇注时,需要对升液压力和浇注压力进行大小为ρgΔh的补偿,才能保持浇注速度不变,从而通过控制浇注时间来控制浇注量;气流量恒定时,升液管内径由10 mm增大到15 mm,单位时间内浇注量有所增大。
The structure of holding furnace was designed by reference to pneumatic quantitative pouring system domestic and abroad. According to the principle of geometric similarity, design experimental facility used plexiglass. Pneumatic quantitative pouring system was studied by water simulation experiment. The result indicates the pouting rate raises with the increasing of gas flow. When the gas flow is constant, the pouring quantity is proportional to pouring time. In order to keep the pouring rate, the lift pressure and the pouring pressure should be compensated in the process of continuous pouring, the value is ρg△h, and so the pouring quantity can be controlled by the controlling of pouring time. When the gas flow is constant, the pouring quantity in unit time increases with the change of diameter of lift tube from 10 mm to 15 mm.
出处
《热加工工艺》
CSCD
北大核心
2014年第3期76-78,91,共4页
Hot Working Technology
关键词
气压
定量浇注
模拟
气流量
air pressure
quantitative pouring
simulation
gas flow
