thermal expansion factor

To enhance thermal-wear resistance of the mandrel, it is required to use mandrel material which has dispersed carbide, linear expansion factor of the base metal close to that of the chide film, minimum elastic modulus and maximum thermal conductivity factor.

为了提高芯棒的抗热损伤性能，应使芯棒材料的碳化物弥散化，基体金属与氧化膜的线胀系数相接近，弹性模量尽量低，热传导系数尽量高。

The impacts of degree of gelatinization, relative crystallinity, moisture content, expansion temperature and expansion duration on thermal-expansion property were investigated through single factor experiments using expansion ratio and fracture energy as indicators.

通过单因素实验，以膨化率和断裂能为指标综合考察了糊化度、相对结晶度、饼坯水分含量、膨化温度及膨化时间对淀粉热膨化性质的影响。

A thermal expansion lag of the dense vapor core was observed for the first time and this thermal lag was shortened by an increased overheat factor.

首次观察到电爆丝中金属蒸汽喷发的热滞后现象，热滞后时间随过热系数增大而减小。