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With the development and wide application of communication technology , communication networks has widened. Electromagnetic interference on the transmission of information will have some impact . How to avoid electromagnetic interference between devices , and to improve the quality of information transmission , communications equipment manufacturing industry has long been a focus of attention . Communication cabinets plays an important role in the electromagnetic interference shielding , it can not only solve the problem of the appearance of the packaging of the communications equipment , support , dustproof , waterproof , but also to achieve the key electromagnetic shielding . This paper combines the operational needs of the production of the Beijing C \u0026 W Technology switching equipment manufacturing company for U.S. customers CDMA cabinet mask area rust , affecting the complaints made by the cabinet shielding and corrosion resistance , electromagnetic shielding technology of communication cabinet comprehensive , in-depth research relates to the principle of the shielding , the choice of shielding material , the formation of the cabinet of the shield , the shield of the connection region implementation problems . A lot of experiments and testing , to identify the cabinet rust, shielding and anti-corrosion performance degradation , a specific process improvement program . Customers to test confirmed by the United States , the use of improved technology, the communications cabinet to overcome the shortcomings of the original , to meet customer requirements . The main results achieved in this paper : (1) rational choice of the connection area for the surface treatment of the thickness of the conductive paint ; pass the test proved that the thickness of its conductive properties of the conductive paint , conductive properties only contain conductive and conductive paint The particle concentration . (2 ) optimization of the treatment process of convergence of the connection area conductive paint and insulating plastic powder layer . (3 ) through process improvements, to address customer complaints local area rust, shielding performance degradation . (4) proposed the idea of electromagnetic shielding, corrosion, dust joint design considerations .
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