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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。
Reference to domestic and foreign pressure quantitative pouring system, holding furnace design. According to the principle of geometric similarity, an experimental device is made from plexiglass, and a water simulation experiment is carried out on a pneumatic quantitative pouring system. The results show that the pouring speed increases with the increase of gas flow rate, and the pouring quantity is proportional to the pouring time when the gas flow rate is constant. When continuous pouring, the size of lift pressure and pouring pressure need to be compensated by the size of ρgΔh, Speed constant, so as to control the pouring time to control the pouring time; gas flow constant, riser diameter increased from 10 mm to 15 mm, pouring amount per unit time has increased.