On the one hand, the refrigeration equipment and the number of doors opened by the cold storage board manufacturers are too many, on the other hand, the cold storage itself is not insulated. In addition to the construction is not suitable, cold storage is not another important reason is the poor quality of cold storage board. Refrigerated panels not insulated: Owner, Engineer and Manufacturer damaged.

This season is the season when grapes are listed in large quantities. The storage and preservation of grapes is an important link affecting the output value of grapes. The weather is hot, mosquitoes are many, and the harvest grapes are kept fresh for a short time. If it is not sold in time, it will deteriorate in two days.

As a result, many companies choose to refrigerate, believing that refrigeration can increase the value of grapes and extend delivery times. Unexpectedly, due to the poor heat insulation performance of the cold storage board, the cold storage cannot be stable at about 0.1°C, and the grapes are hairy, moldy, and deteriorated.

It was an accident that should not have happened. The result should be a win-win for cold storage board manufacturers, engineers and fruit growers. However, just because of the problem of cold storage board, cold storage board manufacturers and engineers do not make money, but compensation, fruit farmers lost a year of hard work.

As the insulation performance, dimensional stability, service life and other key performance indicators of polyurethane cold storage insulation materials can not be seen, touched, and the quality is only one line, so it is particularly important to choose a reliable manufacturer.

Refrigerated board insulation: This is the basic ethics of cold storage board manufacturers

The composition of the refrigerated plate is very simple. Color steel and polyurethane core material. Color steel is related to the durability and appearance quality of the refrigerated plate. Some customers only install refrigerated plates for a year or two, then rust and take off the paint. This is the quality problem of color steel. Others have been used for one to two years and have water on the surface, which proves that there is a problem with the thermal insulation performance of the core material.

Therefore, regardless of the cold storage system is good or bad, we can not ignore the insulation material. Other accessories can be replaced when damaged. If there is a problem with the insulation material, it is equivalent to the foundation and exterior walls of the house not being done well. It is difficult to replace them again.

In the view of cold storage board manufacturers, although users and engineers rarely pay attention to the insulation performance, but for the factory, the insulation is not good is equal to the insulation material is false.

It is understood that the thermal insulation effect of polyurethane cold storage insulation material has a parabolic linear relationship with its bulk density. Cold storage board manufacturers check the unit weight of insulation materials every year. The bulk density of thermal insulation material is an important index to determine the thermal conductivity, strength and dimensional stability of the plate.

In general, the unit weight of qualified insulation materials is 40kg 2/m3. However, in order to improve the oxygen index, some enterprises add a large number of inorganic materials to greatly increase the unit weight of the material to more than 60kg per cubic meter, which seriously damages the physical structure and thermal insulation performance of the thermal insulation material, not only loses the thermal insulation function, but also sharply increases the quality problems such as water absorption, shelling and shedding. If the unit weight is too low, it will be deformed and the heat insulation performance will be reduced.

In addition, it also realizes higher mechanical automation from blanking to foaming process, reduces the dependence on labor, makes the product quality more stable, and greatly shortens the product production time.