防火电缆桥架重要的局部即是防火板，防火板选用硅质材料和钙质材料为主要原料，与必定比例的纤维材料、轻质骨料、黏合剂和化学添加剂混合，经抢先的蒸压技艺制成。加工成型后断面外形平均、无迂回、拧曲、裂痕、边缘等缺陷。

　　Fireproof cable tray is the most important local fire board, fireproof board with siliceous material and calcareous materials as the main raw material, and fiber material, lightweight aggregate, adhesives and chemical additives mixed by a certain percentage, the first made of autoclaved technology. After machining, the profile has the same average shape, no winding, buckling, crack and edge.

　　钢质骨架主要选用冷轧板经机械加工制造而成，具有承载才干高，运用寿命长的特性。钢质骨架的断面规整无毛刺尖角，槽内光滑平整无尖利凸起。内层加防火板或喷防火涂料，且确保防火板与桥架固定可靠。

　　The steel skeleton is mainly made of high quality cold rolled plate, which is made by mechanical processing. It has the characteristics of high bearing capacity and long service life. The steel skeleton has regular section, no burrs and sharp corners, and the grooves are smooth and smooth without sharp bumps. The inner layer is provided with a fireproof board or a fireproof coating, and the fireproof board is ensured to be reliable with the bridge frame.

　　电镀法制造镀锌钢板具有良好的加工性能.但镀层较薄,耐腐蚀性不如热浸法镀锌板. 冷镀锌就是电镀锌，镀锌量很少，只在外管壁镀锌(热镀---内外都镀)，只要10-50g/m2，其自身的耐腐蚀性比热镀锌管相差很多。

　　Manufacture of galvanized steel electroplating method has good processing performance. But the coating is thin, corrosion resistance than hot dip galvanizing plate. Cold galvanizing is galvanized, galvanized galvanized pipe wall rarely, only in the outer (hot dip plating, both inside and outside), as long as 10 50g/m2, the corrosion resistance of hot dip galvanized pipe is better than many of its own.

　　防火涂料是一种钢构造维护商品。它精选高分子合成树脂为成膜物质，加以阻燃剂、发泡剂、炭化剂及高温耐火材料制造而成的。

　　Fire retardant coating is a kind of high efficiency steel structure maintenance commodity. It selects high molecular synthetic resin as film forming material, and is made of flame retardant, foaming agent, charring agent and high temperature refractory material.

　　它在高温条件下，涂层发作接连发泡收缩效应，构成柔韧的海绵状的炭化隔热层，使承载的钢构造不会因高温烈焰的效果而急剧软化变形，强度不会急剧降落。外表防火涂料层喷涂请求平均、光亮、无明显色差。

　　It is in the condition of high temperature, coating foaming contraction effect attack successively, a heat insulation layer carbonization spongy flexible, the bearing steel not because of the high temperature flame effect and rapid softening deformation, not a sharp decline in strength. Surface fire retardant coating spraying request average, bright, no obvious color difference.

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