The rise of temperature of bore surface caused by the heat effect of propellant gas is the main reason of wear and erosion, however the direct reason of it is the scouring of propellant gas, the chemical effect, and the mechanical wear of band.

• 高温火药气体的加热引起的壁面温度升高是身管烧蚀磨损的主要原因，而火药气体的冲刷、化学作用及弹带的机械磨损则是在热作用的影响下造成膛面金属损失的直接原因。