Some customers are not very familiar with the process of the casing of the industrial computer, why did they design it like this? What kind of craft is in it? We are here to explain to you.
In terms of material, the housing material of industrial computer is generally aluminum alloy or aluminum-magnesium alloy. In terms of heat dissipation, the thermal conductivity of aluminum W/(m·K): 237. Metal thermal conductivity, also known as "thermal conductivity". It is a measure of the thermal conductivity of a substance. The symbol is λ or K. It refers to the heat transferred through the unit horizontal cross-sectional area in unit time when the vertical downward gradient of temperature is 1℃/m.
Let me talk about the material knowledge points. The thermal conductivity of gold, silver, and copper in metals is between 330 and 360, and the thermal conductivity of aluminum is 237, which are good conductors of heat. As thermal insulators, the thermal conductivity of cotton, plastic, asbestos, and concrete are all below 1. The thermal conductivity of liquid is about 0.07, and the thermal conductivity of gas is between 0.005 and 0.5.
In terms of price, the price of aluminum profiles or aluminum profiles is much cheaper than gold, silver and copper, and the heat dissipation effect is also good. This is the reason why aluminum profiles are often used on industrial computers. In addition, the cooling method of the industrial computer is passive cooling by a fan. The large-area heat sink is composed of a low-power industrial computer heat dissipation mechanical structure.
The casing of the industrial computer adopts a large-area heat dissipation block, and adopts a high-low drop fin design to increase the heat dissipation area. The outer shell of the cabinet is molded by pouring aluminum water (aluminum forms a liquid at high temperature).
The housing of the industrial computer is made into a long strip, and the width is required, and it can be cut according to the size.
After the cabinet model of the industrial computer is completed, use the machining process to slot the cabinet, and the corresponding VESA holes, screw holes, and rivet posts will be installed on the surface and inside of the cabinet.
The last step of the housing of the industrial computer is black oxidation treatment. This is a common method of chemical surface treatment. The principle is to produce an oxide film on the metal surface to isolate the air and achieve the purpose of rust prevention.
The approximate process of black oxidation treatment is: workpiece clamping → degreasing → cleaning → pickling → cleaning → oxidation → cleaning → saponification → hot water boiling → inspection.
The role of the black oxidation treatment of the casing of the industrial computer is: 1. Eliminate reflection; 2. prevent the aluminum oxide layer; 3. increase the beauty of science and technology. At present, many military-grade industrial computers use black oxidation treatment.
