泡沫陶瓷过滤器净化原理及含过滤器浇注系统的设计  

Filtration Mechanesium of Foam Ceramic Filters and Design of Gating System with the Filters

作　　者：贾天敏[1] 李军文[1] 江度 刘素英[1] 安阁英[2] 

机构地区：[1]辽宁工学院 [2]哈尔滨工业大学

出　　处：《铸造技术》1998年第5期20-23,共4页Foundry Technology

摘　　要：对浇注系统、夹杂产生物来源及金属液体流态进行分析，氢气泡流体动力学实验表明，在浇注系统中过滤器的主要功能是对液态金属产生“整流”净化作用。采用相似理论通过水力模拟实验利用最小二乘法得到过滤器流动阻力的表达式，提出泡沫陶瓷过滤器在浇注系统中放置位置和放大截面积的设计方法。Based on the analysing of gating system and the sources of slag and the experiments on hydrokinetics of meltal with hydroen bubbles,it is believed that the most important function of filter in gating system are t cleaning of melt metal and the changing of characteristics of the liquid metal flow. The factors effecting flow resistance in filters are analyzed by dimension analysis and similarity theory and the mathematical and physical analysis on flow resistance of the filters. By minimum differences square method, design methods of the gating systems with this kind filters have been proposed.

关 键 词：过滤净化 夹杂物 净化机理 铸造 浇注系统 

分 类 号：TG244[金属学及工艺—铸造] TG232.7