Cold storage; refrigerator car; heat preservation

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Cold storage; refrigerator car; heat preservation

Due to the great temperature difference between the inside and outside environment and the serious seepage pressure of the water vapor, the building of the thermal insulation refrigerator for the cold storage and refrigerated truck needs to select the heat preservation material of the cold storage building carefully.
Excellent resistance to water penetration in Midas and high compression performance, make its application advantages in the construction of cold storage in the obvious, and can be used in various parts of. Including floor and floor, inside and outside wall, roof or ceiling, etc..

We use plate in cold storage, its excellent performance in:
Because the material has a closed cell structure, it is high moisture resistant and vapor resistant, preventing condensation and condensation.
Even in the harsh working environment, insulation performance remains unchanged, to ensure the use of cold storage building function.
It is difficult to deform under pressure and ensures the structural characteristics of the building. When applied to the floor of the building, it provides excellent load support for the floor.

The difference between dligence polystyrene board and polyurethane

Serial number	Contrast item	Polystyrene board insulation system	Polyurethane spray insulation
1	Thermal conductivity (the lower the thermal conductivity, the better the insulation effect)	Extruded polystyrene board:0.03-0.035W/M.K	0.028-0.032W/M.K，The theory of thermal conductivity of polyurethane insulation material than the thermal conductivity of polystyrene board is low, but because of the foam, affected by various factors, the stability coefficient of thermal conductivity is poor, as the factory processing board or polystyrene board is stable, reliable.
2	Difficulty degree of construction	The extruded polystyrene board insulation system is simple in structure, mature in construction technology and node processing. The workers are easy to operate, and the construction quality of the heat preservation system is easy to guarantee.	Technology, node processing and other mature technologies. The workers are easy to operate, and the construction quality of the heat preservation system is easy to guarantee. PU spraying process is not easy to construct, so it is difficult to control the thickness. Can only be painted more than once, in order to achieve the standard thickness, a spray thickness is too large, flatness is difficult to control, a spray thickness is too small, the insulation layer density may increase, waste raw materials, increase costs.
3	Environmental impact	Construction temperature is generally more than 0 degrees Celsius, the wind is not greater than 5. Less affected by humidity.	Polyurethane foam spraying is affected by many factors. The temperature is above 15 degrees, and the relative temperature is lower than 70%. If one of the conditions do not meet, it is easy to cause foaming bad, seriously affect the insulation effect and long-term stability. The requirements of the spray process is also very high, the need to strictly in accordance with the standard distance and angle and spraying pressure for construction, otherwise foam will be uneven.
4	Late quality stability	Because the heat preservation plate is formed by the factory chemical, the stability of the dimension, the stability of the insulation effect and the mechanical strength are relatively stable, and the change with time is little.	As the insulation layer is sprayed forming foam, foam has a contraction process, if the construction time is tight, spraying after a very short period of time for the construction of surface layer, prone to surface layer crack.
5	compressive strength	150-400kpa	Usually150-300kpa

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source：http://www.dgkingda.com/supply/13.html

Release time：2014/12/31 0:00:00