The three important factors of the cold storage panel are the density of the cold storage panel, the thickness of the two-side steel plate, and the load-bearing capacity. The density of the cold storage insulation board is high, so the foaming of the board is to increase the amount of polyurethane, and at the same time increase the thermal conductivity of the polyurethane board, so that the insulation performance of the cold storage board will decrease and the cost of the board will increase. If the foaming density is too low, it will cause The load-bearing capacity of the cold storage board is reduced. After testing by the relevant national departments, the foaming density of the general polyurethane cold storage insulation board is 35-43KG as the standard.
