摘要
通过墙体砖压机压制蒸压砖坯实验时得到的油缸位移、压力曲线,确定粉料的压制特性方程,包括压制、摩擦以及脱模特性,对川北方程进行了修正,提高了计算精度;得到摩擦系数与侧压系数的乘积fξ以及随着压缩率变化的规律;并通过试验给出常用的蒸压砖的压制特性方程中的系数,为压机和模具设计以及压制工艺优化提供依据。
The powder compaction equation is determined by the cylinder displacement and pressure curvesobtained in the experiment of pressing autoclaved brick, including pressing, friction and the characteristics ofdemoulding; The Kawakita equation is modified, thus improving the calculation precision; And the productcoefficient of friction and lateral pressure and its variation law with compression rate are obtained. Theseprovide the basis for design of pressure and mould and the pressing optimization.
出处
《砖瓦》
2015年第2期10-14,共5页
Brick-tile
基金
河北省科技支撑计划项目(项目编号:13211917)
关键词
蒸压砖粉料
压制特性
压制力
摩擦力
侧压系数
autoclaved brick powder
pressure characteristics
pressure
friction
coefficient of horizontal pressure
