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Eps Sandwich Panel Application
Feb 13, 2019
Energy-Saving Lightweight EPS Sandwich Panel.jpg

EPS color steel sandwich panels are most likely to have problems in terms of bond strength, areal density, peeling performance, and dimensional deviation. The poor bonding strength causes the sandwich panel to not withstand sufficient external force, which is easily damaged and easily torn. The sandwich panel cannot withstand sufficient mechanical force during the actual installation process; the difference in surface density will result in insufficient bending performance of the sandwich panel and cannot withstand pressure. For example, when used on a sandwich panel on a roof, if a heavy object is accidentally added, it is easy to cause indoor personal injury. The envelope structure used in the light combination house cannot withstand large thrust and has poor stability. In fact, as long as the manufacturer organizes the production of raw materials according to the standard of JC689.1998{Metal-faced polystyrene sandwich panel, the index of areal density is very easy to reach. If the peeling performance is poor, the service life of the cold storage with the sandwich panel insulation will not meet the design requirements, and the consumer's economic interests will be seriously injured. The dimensional deviation will make the specification smaller, the usage of the user will increase, and the construction cost will increase. The standard has deviations on the length, width and thickness. In addition, the company does not understand the standard, and the product specifications and models reported are quite different from the actual production. The width series specified by the standard is 1150mm, 1200mm, and the tolerance is ±2mm.

1. Construction problems

Pay attention to whether the connection between the steel structure skeleton and the EPS color steel sandwich panel is firm, and whether the joint is not covered with the fireproof coating leaves a weak point of fire prevention. Pay attention to the steel structure, whether the color steel sandwich panel construction is equipped with lightning rods, and whether there is a good grounding point.



2, the scope of application

Since EPS auto-ignition and ignition temperature are 495 ° C and 370 ° C, respectively, EPS color steel sandwich panels can not be used in the decoration of the kitchen, can not be used in high-power lamps, can not be close to the location where the power consumption is high and the frequency is high.


EPS color steel sandwich panels can not be used as building materials for temporary low and high voltage power distribution rooms in the plant. EPS color steel sandwich panels can be used as the envelope material for clean workshops. As a new building energy-saving material, EPS color steel sandwich panels are widely used in the construction industry.


On the basis of learning the fire lessons, the standard use of EPS color steel sandwich panels under the conditions of ensuring energy conservation and safety is still a major issue that the majority of firefighters need to study and explore in the future.




3, quality problems

In terms of quality problems, EPS color steel sandwich panels are most likely to have problems in terms of bond strength, areal density, peeling performance, and dimensional deviation.


The poor bonding strength causes the sandwich panel to not withstand sufficient external force, which is easily damaged and easily torn. The sandwich panel cannot withstand sufficient mechanical force during the actual installation process;


The difference in areal density will result in insufficient bending resistance of the sandwich panel and no pressure. For example, when used on a sandwich panel on a roof, if a heavy object is accidentally added, it is easy to cause indoor personal injury. The envelope structure used in the light combination house cannot withstand large thrust and has poor stability. In fact, as long as the manufacturer organizes the production of raw materials according to the standard of JC689.1998{Metal-faced polystyrene sandwich panel, the index of areal density is very easy to reach.

If the peeling performance is poor, the service life of the cold storage which is insulated by the sandwich panel will not meet the design requirements, and the interests of the consumer are seriously injured. The dimensional deviation will make the specification smaller, the usage of the user will increase, and the construction cost will increase.


The standard has deviations on the length, width and thickness. Many companies do not understand the standard. The product specifications and models reported are quite different from the actual production. The width series specified by the standard is 1150mm, 1200mm, and the tolerance is ±2mm. And some manufacturers will report 1150mm specifications to l200mm. In addition, some manufacturers are also likely to cause dimensional deviations due to insufficient precision of equipment unloading.



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