耐火管

NHK耐火管托；

NHK fire resistant pipe bracket ;

结果表明，研制的无石棉硅酸钙板具有密度较低、强度较高、高温线收缩率小的特性，设计、制造的新型耐火风管的耐火极限大于2.5h。

The results show that , the said board has excellent physical characteristics , and the fire duct has a fire endurance time of not less than 2.5 h.

耐火砖管在铸钢件砂芯中的应用

Application of the refractory brick tube in sand core of steel casting

新型耐火风管的研究

Study on new type fire resistant air-duct

研究了一种新型耐火风管的制造方法，探讨了在一定的工艺条件下耐火风管主材-无石棉硅酸钙板的模压成型配方。

By a given moulding technique condition , the details of contents for producing asbestos-free calcium silicate board , the primary material for the fire duct , were discussed .

金属翅片换热器和非金属耐火材料光管换热器能够改善烟叶外观质量，以金属翅片换热器效果最好。

Metallic fin tube heat exchanger and refractory nonmetallic smooth tube heatexchanger could improve appearance quality of tobacco leaf , and metallic fin tube heat exchanger performed better .

耐火板组装风管的设计

Design of Air Duct Assembled by Refractory Plate