Selection techniques and methods of health computer chassis

The main criterion for judging the health of the PC chassis is whether the radiation capability is excellent, and the primary factor in judging the radiation is the material of the chassis. Typically, all parts and enclosures inside the quality chassis are not painted, because the paint contains resin ingredients, it will oxidize the plate and reduce the chassis radiation and thermal conductivity. Seemingly simple substance is one of the most direct and effective means of radiation protection. Of course, high-grade chassis will be on the surface of the steel plate through a special process of zinc plating, the thicker zinc layer means that the more radiation-proof ability. General Market Common chassis is basically the use of galvanized steel, according to the way of galvanizing, production technology and the amount of zinc plating, mainly divided into hot-dip galvanized steel (GI) and electrolytic galvanized steel (EG). Due to the different production process, the characteristics of the two kinds of materials differ greatly:

1, the GI zinc can reach more than 45 grams per square metre, and eg galvanized volume of only about 20 grams, galvanized volume will directly affect the radiation and antioxidant capacity of the steel plate;

2, compared to eg,gi electromagnetic waves, especially for low-frequency electromagnetic waves have stronger adsorption, at the same time with better heat dissipation and conductivity, can effectively withstand high-frequency electromagnetic waves;

3, the GI zinc plating layer and steel plate can form a layer of zinc-iron alloy, so that galvanized layer will be more solid, and eg galvanized layer is relatively thin, so GI anti-corrosion and anti-corrosion characteristics to be far superior to eg.

Therefore, the latter cost is lower, the process is simple, for the sake of cost, some chassis will adopt electrolytic galvanized steel plate or brush paint of ordinary steel plate, use these materials to produce the chassis is naturally difficult to have excellent radiation protection capability. Please make sure you choose carefully when you purchase. If you do not know how to distinguish, www.xker.com recommended that users choose a good brand of large manufacturers chassis, the more famous is Foxconn, a full range of chassis are using GI materials, and the surface of the steel plate "chromate coating treatment" and "fingerprint-resistant skin membrane treatment", So as to effectively avoid the oil stains and fingerprints may cause the paint off and uneven and so on, the quality of nature trustworthy.

And this use of double-sided paint chassis, radiation-resistant ability is poor. Because the inside of the chassis side panel paint thickness is not enough, incredibly can see the gray background! How does such material endure to live for a long time?

Second, the chassis of a high degree of tightness in order to cut off the electromagnetic radiation leakage path. We mainly look at the chassis panel, the front bezel seamless optical drive design, the posterior side baffle tightness.

This kind of kitchen chassis without iron front board design, the chassis can not be shielded EMI electromagnetic radiation inside the chassis, also can not protect the chassis parts of the external electromagnetic signal interference and normal work, resulting in radiation damage to the human body. At the same time, the plastic panel does not have the Iron Front board to do the backing, the impact strength is seriously insufficient.

and the quality of the chassis are set up metal front plate, the ability to prevent and the strength of the degree of nature can not be compared. And many other chassis will ignore the front of the interface of seamless tightness, often so that electromagnetic leakage, please buy when users must look carefully.

Third, EMI Shrapnel is also an important measure of the ability of a chassis to prevent radiation is excellent. The quality of the chassis will be based on the thickness of the material to specify the EMI-resistant points of the pitch, and the internal mechanism closely combined to ensure a higher radiation-proof capability. is measured by the workmanship and design of the EMI shrapnel, not by the sheer quantity.

In a word, PC chassis is the computer "home", every day and the user daily, buy the time we are still more than a little thought, do some more comparison, choose a solid work, protect health, affordable products for the good