Research of the test method of volume expansion coefficient for typical explosive

摘要

The volume expansion coefficient of typical pressed explosive was tested by the method of liquid infiltration, which was a method chalked up the volume expansion coefficient by immerging the sample in appropriate liquid and testing the changing of volume of the liquid and sample. Compatibility test and equilibrium swelling method were used for the confirming of the suitable liquid for typical sample, such as pressed explosive A. As results of theoretical calculation in a wide temperature range and screening experiment, the appropriate size of typical sample was height of 20 mm and 19 mm in diameter in the sample chamber, the size of which was height of 21.15 mm and 19.95 mm in diameter.