The key of the technology was designing ideal process by using suitable preheating method.
该技术的关键是采用合理的预热方式，设计出理想的工艺流程。
Submerged nozzle must be preheated before casting. Now, burning the coal gas is the usual preheating method.
浸入式水口在浇钢以前必须进行充分预热，利用燃烧的煤气烘烤水口是常用的预热烘烤方式。
The preheating method includes heat-pipe exchanger, tubular heat exchanger, plate heat exchanger, heat medium exchanger and regenerative hot stove.
预热法包括用热管换热器、管式换热器、板式换热器、热媒式换热器和蓄热式热风炉。
Through experiment from reason and practice, the influence of the preheating method on eliminating crack of pinch roller in the surfacing welding was discussed .
本文经过实验，从实践和理论上，研究了预热方法对消除夹送辊堆焊冷裂纹和热裂纹的影响。
Single pass laser surface of the specimens using powder feeding method were obtained by varying the powder feeding rate and the preheating temperature of the substrate.
通过改变送粉激光熔覆过程中的扫描速度、送粉速率、基体预热温度等工艺参数，获得了单道激光熔覆层。
Now, most of them are used to shorten the starting time of the engine with the method of installing the preheating plug.
现在大多数都是采用给发动机安装预热塞的方法来缩短启动时间的。
In addition, a calculating method on welding preheating temperature and a selective principle and method on welding component matching are concluded.
同时总结了一套计算焊接预热温度确定方法和焊接接头匹配的选取原则与方法。
Compared with electric resistance bake-out, thermal bake-out provides better preheating control, so thermal bake-out is a kind of very good method for preheating aluminum reduction cells.
与电阻焙烧相比，热焙烧提供了更好的预热控制，因此热焙烧是很好的预热铝电解槽的方法。
Depending upon the requirements of cold end temperature of tube wall of air preheaters, the method of cold air preheating and the criterion of selection for air heater are put forward.
根据空气预热器冷端壁温的要求，提出了冷风预热的方法以及暖风器选择的原则。
The computational results show that the ring coke bed is the best method of the coke preheating which has the least thermal stress in the cathode when anodes are arranged averagely.
研究结果表明，在阳极平均排列时，环形焦粒床所产生的热梯度最小，为最佳的焦粒焙烧方案。
The computational results show that the ring coke bed is the best method of the coke preheating which has the least thermal stress in the cathode when anodes are arranged averagely.
研究结果表明，在阳极平均排列时，环形焦粒床所产生的热梯度最小，为最佳的焦粒焙烧方案。
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