Basic structure of aluminum box

A plywood: the competition is fierce. In order to reduce the box price, some colleagues used materials that did not meet the design requirements, such as using 8mm instead of 9mm plywood, or even using some worse boards (density board, large core board). In this case, the polar plate will expand after the box is wetted, so it can no longer be used normally.

B aluminum: aluminum is also divided into thickness. Aluminum is the skeleton of the box. The thickness not only determines the beauty of the box, but more importantly, it keeps the box stable when it is impacted by external force. Aluminum must be oxidized, because aluminum without oxidation process will naturally oxidize and become dull as long as it is left for a period of time, which will directly affect the beauty of the box.

C Hardware: The structure of hardware and the thickness of material directly affect the service life of the box. Many manufacturers or users like to use rhodium-plated hardware products, because they look beautiful in a short time, but in practice, once rhodium-plated products are hit, the electroplating layer is easy to be damaged, and it will rust after being damaged; Although the appearance of galvanized hardware products is ordinary, it can automatically release the decomposition protection layer and has strong anti-damage ability, thus achieving good anti-rust effect.

D shockproof layer: high density (EVA glue) and pearl cotton are stuck in the box. The density, hardness and thickness of these two kinds of cotton determine the degree of protection and shock resistance of the items they carry; The three parameters must be moderate, and too high density and hardness will affect its seismic effect; Too low, easy to sag, affecting the service life.

The last and most important accessory is the wheel. There are many kinds of wheels, such as PVC wheels, PU wheels and load-bearing wheels. And according to other parameters of the wheel, such as single bearing, double bearing, single brake, double brake, steel thickening, high and low temperature and tolerable weight; Prices range from a few to dozens, and the quality of wheels directly determines the normal transportation, placement and use time of boxes.