顶部加热

电阻顶部加热炉电力元件设计及选择

Design and Selection of Electric Element Used in the Top Resistance Heating Stove

塑料焊接用电热膜性能的研究电阻顶部加热炉电力元件设计及选择

THE PROPERTIES OF ELECTRICALLY HEATING FILM LOR PLASTIC WELDING Design and Selection of Electric Element Used in the Top Resistance Heating Stove

结果表明：当碎石道碴层顶、底面之间的温差较小时，顶部加热及底部加热两种试验条件下测得的导热系数基本相同；

The test results show that the thermal conductivity of the railway ballast is almost the same for the two thermal conditions when the temperature difference between the top and bottom of the ballast is smaller .

从加热炉的供电设计及选择和加热炉温度电气控制系统的设计及方案选择两个方面阐述了顶部电阻丝加热金属热浸镀炉有关电气方面的设计及选择方法。

Based on the speciality of the hot-dip furnace , from the design and methodic selection of the furnace 'S electric supplying and temperature-control system , to describe the electric appliance design and methodic selection of the hot-dip furnace heated by the top electric resistance wire .

在产品生产方面，提出将铝质壳体的浇铸口设置于模具顶部，同时采用加热金属铸模与立式浇铸并举的方法，使毛坯一次性浇铸成型完好率达到了98%以上。

In the production , the proposed aluminum shell mold casting port settings in the top , while the metal mold by heating simultaneously with the vertical casting method , casting off the rough shaping good rate reached 98 % .