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济南外墙保温材料的行情

  有0人浏览   日期:2019-10-29

文章摘要: 在我国,外墙保温材料主要分为四个等级:甲级、B1级、B2级和B3级。甲级不燃,属于无机保温材料。乙类绝缘材料分为三个等级,B1不行燃,B2易燃,B3易燃。......

  在我国,外墙保温材料主要分为四个等级:甲级、B1级、B2级和B3级。甲级不燃,属于无机保温材料。乙类绝缘材料分为三个等级,B1不行燃,B2易燃,B3易燃。

  In China, the external wall insulation materials are mainly divided into four grades: Grade A, B1, B2 and B3. Class A is non combustible and belongs to inorganic thermal insulation material. Class B insulation materials are divided into three grades, B1 is not combustible, B2 is flammable, B3 is flammable.

  B1级:普通如聚苯乙烯/聚苯乙烯保温板经过特殊处分后增加阻燃剂。B2类:可燃保温材料,主要是发泡聚苯乙烯泡沫保温板和挤塑聚苯板,也称为普通板。这种材料的燃点低,焚烧时会开释大批有害气体。

  Class B1: flame retardant is added to ordinary polystyrene / polystyrene insulation board after special treatment. Class B2: Combustible insulation materials, mainly foamed polystyrene foam insulation board and extruded polystyrene board, also known as ordinary board. This kind of material has a low ignition point and will release a large number of harmful gases when burned.

  B3级:易燃隔热材料,主要由聚苯乙烯泡沫制成。由于这种材料极易焚烧,是以已不再用作外墙保温材料。

  Class B3: flammable thermal insulation material, mainly made of polystyrene foam. Because this kind of material is easy to burn, it is no longer used as insulation material for external walls.

华钦保温

  隔热材料通常是轻质松散材料,多孔、纤维状或粉末状,里面含有大批静态空气。由于空气是不良导体,这些密封的空气在保温方面起着很好的作用。但是,如果绝缘材料受潮,即水分侵入绝缘材料的里面,少许空气将被水分替代。水的导热率比静态空气高20多倍。如果水中的水分冻结成冰,冰的热导率比静态空气高80倍以上。由此可见,受潮湿影响的隔热材料的导热系数明显增加,而隔热性能大大降低。材料的含水量越高,隔热性能越差。是以,绝缘材料在运输、储存和应用过程当中必须保持干燥,以避免受潮。

  Thermal insulation materials are usually lightweight loose materials, porous, fibrous or powdery, which contain a large amount of static air. Because air is a bad conductor, these sealed air plays a good role in heat preservation. However, if the insulation is damped, i.e. moisture intrusion into the insulation, a little air will be replaced by moisture. The thermal conductivity of water is more than 20 times higher than that of static air. If the water in the water freezes into ice, the thermal conductivity of ice is 80 times higher than that of static air. It can be seen that the thermal conductivity of the heat insulation materials affected by humidity is significantly increased, while the thermal insulation performance is greatly reduced. The higher the moisture content of the material, the worse the insulation performance. Therefore, insulating materials must be kept dry during transportation, storage and application to avoid moisture.

  外墙保温系统选定应遵循的原则

  Principles to be followed in the selection of external wall insulation system

华钦保温

(1)外保温系统的抗裂性优于内保温系统的原则(2)逐层渐进变化、灵活开释应力的手艺原则(3)普通水泥砂浆不应作为外保温系统表面的找平保护层材料的原则(4)进步无空腔或小空腔布局系统稳定性的原则(5) 保护层的抗裂性是控制裂痕的主要冲突原则(6)所有外保温系统的抗裂性原则通过大规模耐候试验得到验证(7)尽量选定涂层外饰面系统的原则(8)应充分考虑各层材料的相容性和匹配性原则(9)在保温截止片面材料变化时增强密封的原则(10)应充分考虑外墙保温系统供应商系统材料的完全供应原则。

  (1) the principle that the crack resistance of the external insulation system is superior to that of the internal insulation system (2) the technical principle of gradual change layer by layer and flexible release of stress (3) the principle that ordinary cement mortar should not be used as the leveling protective layer material for the surface of the external insulation system (4) the principle of improving the stability of the distribution system without cavities or small cavities (5) the principle that the crack resistance of the protective layer is the main conflict principle of controlling cracks (6) all external insulation systems The principle of crack resistance is verified by large-scale weathering test (7) the principle of selecting coating external facing system as far as possible (8) the principle of compatibility and matching of materials in each layer should be fully considered (9) the principle of enhancing sealing when the insulation cut-off material changes (10) the principle of complete supply of system materials from the supplier of external wall insulation system should be fully considered.


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