通过金相组织分析，初步摸清铜锌合金快速凝固组织在不同温度下保温组织演变的特点。
By microstructure analysis the evolutive characteristic of structure of rapidly solidified Cu Zn alloy in different temperature preservation was initially made clear.
复合硅酸盐保温材料可塑性强、导热系数低、耐高温、浆料干燥收缩率小等特点。
Composite silicate insulation material plasticity, low thermal conductivity, high temperature resistant, low pulp drying shrinkage rate, etc.
简要介绍了用泡沫塑料保温、密封、防水的拱形彩钢屋面的特点、构造、材料、设备、施工工艺、生产成本和应用。
The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.
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