The insulation board of cold storage includes polyurethane color steel plate and polystyrene color steel plate. The polyurethane color steel plate adopts advanced eccentric hook and slot hook connection structure. The eccentric connection mode realizes the correct connection between the storage board and the storage board. The excellent sealing performance * * greatly reduces the leakage of cold air and enhances the heat insulation effect.

T-plate, wall plate and corner plate combined cold storage can be set in any space to achieve the effect of scientific design, simple and practical, and save the construction cost of combined cold storage. The strength and heat insulation performance of polyurethane color steel plate are better than polystyrene color steel plate, so polyurethane color steel plate is often used in quick freezing or low temperature storage.

1、 Polyurethane color steel plate has the following characteristics:

1. Diversified specifications, such as enterprise type, H type, corrugated type, etc., and bright color, no surface decoration

2. The installation is flexible and convenient. The color steel composite plate not only greatly reduces the cost of foundation engineering and structural engineering, but also can be disassembled for many times. The construction and installation is flexible and convenient, and the comprehensive benefit is very significant.

3. The core material of fire-resistant color steel plate is B1 class flame-retardant material, its oxygen index is 26, it will not melt when burning, and there is no black smoke, no high-temperature decomposition drop.

4. The use temperature range of wide color steel plate core material is - 70 ℃ ~ + 120 ℃, and instantly reaches + 200 ℃. When it is used in low or even ultra-low temperature environment, it has small shrinkage and no embrittlement. It is an ideal insulation material for cryogenic (cold storage) engineering.

5. Low thermal conductivity (< = 0.041w / MK), thermal insulation performance

6. The non-toxic and odorless color steel plate core material does not use Freon foaming agent. It is non-toxic and odorless when burning, and the spilled gas is harmless to human body and environment. It meets the requirements of national environmental protection. It is a new type of green building materials.

7. The core material of waterproof and moisture proof color steel plate is an organic polymer foaming material, which has a closed cell structure and good water absorption resistance and water vapor permeability resistance.

Polystyrene sandwich panels are usually used in industrial and civil buildings such as ordinary low-temperature combined cold storage, high-temperature cold storage and food processing plants due to their good thermal insulation performance and moderate price.

2、 Characteristics of polystyrene sandwich board:

1. The weight of self weight light steel wire grid cement polystyrene sandwich board is 4kg per square meter. After 2.5cm cement mortar is applied on both sides, the weight per square meter is still less than 90kg, which is 65% lighter than the same brick wall.

2. According to the introduction of literature, the allowable compressive load of 1.22mx2.44mx0.lm wall is 74.4kn/m2, the allowable transverse bending load is 1.95kn/m2, and the test results of steel wire grid cement polystyrene sandwich panel wall are 6.7 times and 3 times of the allowable load respectively.

3. Through the test of sound insulation and heat preservation, the sound insulation index of 10cm thick standard steel grid cement polystyrene sandwich panel wall is 41 ~ 45dB, and the thermal resistance is 0.62 ~ 0.9 (m2. K) / W, which indicates that its sound insulation and heat preservation performance is very good.

4. The results show that the fire resistance limit of 10cm thick standard steel grid cement polystyrene sandwich panel wall is 1.22 ~ 1.35h, and the heat release, smoke, and CO2, CO production are very low at high temperature. If the mortar layer is properly thickened, the fire resistance limit can reach more than 2h, which can meet the fire protection requirements of different grades.