This paper has put forward a cokeless cupola with equi-blast(or:oxygen and natureal gas)and non-watercooled,which has adopt inside and outside double snial-like wind boxes to replace the T-shaped structure,and has adopt a circular-arch refractory bed to replace the watercooled refractory bed,and these can raise a molten iron temperature together,to conquer this fatal weakness.
本文提出均匀送氧供气、无水冷无焦冲天炉,采用内外交叉双重蜗螺形风箱(且两相出口各各相套)以代替T形结构,采用圆拱形耐火炉床以代替水冷耐火炉床,两者共同提高铁水温度,以克服这个致命致点。
Development and application of fire-resistant sealing device of pipe for warships;
DGM-NG型船用管路通舱耐火密封装置的研制和应用
increasing highness and span of construction need higher construction steel, base on "USA 911-AFFAIR", we will pay attention to technology guideline for fire-resistant of construction steel more and more.
高度和跨度不断增加的建筑领域钢结构的发展对建筑用钢的综合性能提出了更高的要求,基于美国911事件的教训,建筑用钢的耐火性这一指标得到了世界更大的关注。
The paper tested the performance of noise insulation, heat insulation and fire-resistance of bamboo wall, and graded them by the GB/T 15225—94 Graduation of physical performance fo.
此外,还测得竹材墙体的耐火极限为20min,说明将其用于民居房屋的建造,还需要进一步的改进研究。
