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We have also learned a lot about the knowledge of the three comprehensive test box, but most of what we have learned before was about its use. What I want to share with you is about the materials used in some of the main structural components of the three comprehensive test box. This way, it can also deepen our understanding and understanding of this product.

For the convenience of everyone's understanding, we will first divide it into two parts, namely the outer box and the inner box. From an overall perspective, the structural form of the three comprehensive test boxes is an integral combination structure, using independent internal and external box structures. The middle part is made of polyurethane hard foam and high-quality ultrafine glass wool insulation. The refrigeration/dehumidification unit is located in the chassis at the bottom of the equipment. The equipment mainly includes the test box, refrigeration unit, and electrical control part. Next, we will introduce the material conditions of each part separately.

Firstly, let's take a look at the material application of the box. Usually, the outer box of the equipment is processed and formed using high-quality A3 steel plate CNC machine tools, and the surface of the shell also needs to be sprayed with plastic to make the product appearance beautiful and smooth. The inner box of the three comprehensive test boxes is made of imported stainless steel.

Secondly, let's introduce some of the materials used by some of its internal mechanisms. In order to achieve better insulation effect, the insulation material of the three comprehensive test boxes is composed of polyurethane hard foam and high-quality ultrafine glass wool insulation. As for the door of the equipment, it is usually installed with a door frame and heating wire at the door frame, which can solve the problem of frost formation. As for the lighting device, it is located above the observation window of the gate and can prevent moisture.

In addition to the main structural components mentioned above, we often use observation windows, which are convenient for us to check the internal conditions of the test box at any time. The size specification of the observation window is usually 480 × 330mm, installed at the gate of the three comprehensive test boxes. In addition, test holes can also be set according to user requirements.