Increase the compression degree can make arc of high temperature plasma jet extended, form more uniform high temperature area, and increase the speed of the jet, can reduce the width of the poor.
The uniform axis compression capability of spherical pore Al alloy foam was studied and the relationship between compression strength and relative density was acquired.
研究了球形孔泡沫铝合金的单轴压缩性能，得到了抗压强度与相对密度的关系；
3
The strength analysis of a drop-shaped tube is resolved into the following problem: axial compression together with a plane state of strain with uniform internal pressure.