Drying Box Quality Discrimination
The drying box is divided into two categories: electric blast drying box and vacuum drying box according to the different drying materials. Nowadays, it has been widely used in chemical industry, electronic communication, plastic, cable, electroplating, hardware, automobile, photoelectricity, rubber products, molds. , spraying, printing, medical, aerospace and higher education industries. The huge market demand has diversified the types of drying boxes and the quality of the products are not the same. In order to make people understand the drying boxes more clearly, a pair of smart eyes are used to identify the quality of the drying boxes.
First, from the structural analysis, the general drying box shell is made of cold-rolled steel plate, but in terms of thickness, the difference is very large. Due to the vacuum environment inside the vacuum drying box, in order to prevent the box from being damaged by atmospheric pressure, the thickness of its shell is slightly larger than that of the blast drying box. Generally, the thicker the steel plate, the better the quality and the longer the service life. For the convenience of observation, the door of the drying box is provided with glass windows. Generally, there are tempered glass and ordinary glass inlaid on the door. All the drying box doors produced by Labideal use tempered glass. Although the price is slightly more expensive, the appearance is beautiful. It is a powerful guarantee for the safety of operators. From the outside and inside, there are two options for the inner container of the drying box, one is galvanized sheet, and the other is mirror stainless steel. Galvanized sheet is easy to rust during long-term use, which is not conducive to maintenance. Mirror stainless steel has a clean appearance, easy maintenance, and long service life. It is a high-grade liner material on the market, but the price is slightly higher than galvanized sheet. The sample rack of the liner generally has two layers, which can be added according to customer requirements. Because the quality of the sample rack is made of stainless steel, and the additional racks are not conducive to the circulation of internal hot air, which increases the quality requirements of the fan.
Speaking of temperature, I have to talk about insulation and sealing. At present, the thermal insulation material of domestic drying boxes is mainly fiber cotton, and a small number of polyurethanes are used. Let’s talk about the different characteristics of the two materials. In terms of thermal insulation effect, polyurethane has better temperature resistance and thermal insulation effect than fiber cotton. Generally, polyurethane can keep the high temperature in the box stable for a few hours. It is worth mentioning that the efficient thermal insulation performance of polyurethane can effectively prevent the operator from being burned by excessive temperature outside the cabinet. At high temperature, the drying box made of fiber cotton can only be controlled and adjusted by the temperature controller to keep the temperature in the box stable. This greatly increases the working intensity of the fan and the controller, thereby reducing the service life of the drying box. . From the perspective of post-maintenance, because the polyurethane is injection-molded into the box, it is particularly cumbersome for later maintenance. Before the repair, all the polyurethane needs to be pulled out, and the injection-molded after repairing. Fiber cotton is not so troublesome and easy to operate. Finally, from the market point of view, the price of fiber cotton is very cheap and can meet most of the thermal insulation requirements. It is widely used, and Labideal recommends that the thinner the fiber cotton, the larger the thickness, and the higher the thermal insulation quality. The sealing of the drying box is generally made of anti-aging silicone rubber, which has a good sealing effect.
In terms of circulating heating performance, the selection of fans is very important. There are mainly domestic and imported fans. Low-noise and high-performance fan does not produce the noise of domestic fans during use, and has a good cycle effect and fast heating. Of course, you can also choose according to the needs of customers.
Selection of accessories: If the general drying box is not required by the customer, there will be no time controller, that is, the drying time can only be controlled manually.
