大家在选购复合板时要注意甄别，以防上当受骗，下面济南复合板厂总结了几点购买复合板材时需要注意的问题给大家参考。

When choosing composite boards, everyone should pay attention to discrimination to prevent being deceived. Below, Jinan Composite Board Factory has summarized a few points to pay attention to when purchasing composite boards for your reference.

1.复合板的外观质量：表面光滑，不能有任何的划痕、污渍和损坏。

1. Appearance quality of composite board: The surface is smooth and free from any scratches, stains, or damage.

2.复合板的引燃特性：引燃特性是指工程材料在燃烧或燃烧过程中所发生的所有物理和化学作用。这种特性是从材料的阻燃特性、火焰蔓延和产生的毒性等方面考虑的。

2. Ignition characteristics of composite plates: Ignition characteristics refer to all physical and chemical reactions that occur during the combustion or combustion process of engineering materials. This characteristic is considered from the aspects of flame retardancy, flame spread, and toxicity of the material.

3.耗能收敛温度：表示复合绝缘板的耐热性。将浸泡后的复合板材浸泡在温水中。当温度达到643℃时，电路板会慢慢收缩。结果显示，在643℃的环境下，板材会发生变形。

3. Energy dissipation convergence temperature: represents the heat resistance of the composite insulation board. Soak the soaked composite board in warm water. When the temperature reaches 643 ℃, the circuit board will slowly shrink. The results show that the board undergoes deformation in an environment of 643 ℃.

4.吸水率：吸水率是指在空气中吸收水分的能力。复合板的性能与原料的有机化学组成及结构有关。对于无机非金属材料，除了其表面物理性能之外，还与其结构有关。若有肌肤毛孔，则其吸水性佳。同时，也与孔的直径及结构有关。

4. Water absorption rate: Water absorption rate refers to the ability to absorb water in the air. The performance of composite boards is related to the organic chemical composition and structure of the raw materials. For inorganic non-metallic materials, in addition to their surface physical properties, they are also related to their structure. If there are skin pores, their water absorption is good. At the same time, it is also related to the diameter and structure of the hole.

5，决定复合绝热板材的关键信息就是复合板材的规格，一般范畴在kg/m3,100-250-15%，复合绝热板材的相对密度要达到产品质量的要求。

The key information determining the composite insulation board is the specification of the composite board, which generally ranges from kg/m3 to 250-15%. The relative density of the composite insulation board must meet the requirements of product quality.

以上就是购买复合板要注意的问题，网站http://sxhtyz.com上有很多的内容给大家进行参考，欢迎您来关注了解！

The above are the issues to pay attention to when purchasing composite boards, website http://sxhtyz.com There is a lot of content for everyone to refer to on, welcome to follow and learn!