电磁屏蔽门是保持屏蔽系统总性能免于退化的最关键的部件，也是系统中唯一可动部分和直观的部件公司生产大型电动及手动：平移屏蔽门、平开屏蔽门、提升屏蔽门、推拉屏蔽门等。一、应用范围:主要用于高性能大小型电磁屏蔽室、涉密机房、高压测试实验室及防无线电干扰实验室等领域．二、性能指标：按国家GB12190-90标准测试屏蔽指标满足GJBZ-20219-94C级标准。 频率范围 (≥)屏蔽效能 14KHz ≥70dB 100KHz ≥90dB 200KHz ≥100dB 50MHz～1GHz ≥110dB 1GHz～10GHz ≥100dB 三、制作工艺:程控密码平移屏蔽门采用二层气囊与二层锁紧定位机构,完整的屏蔽结构.屏蔽板与衬条用螺钉固定连接,接缝处用导电粘合剂和二氧化碳保护焊密封,防止了电磁波的辐射和外界电磁波干扰,屏蔽簧片可拆卸式，局部如有损坏易于更换,簧片和屏蔽刀口均属同性材料电位差相近不会产生电腐,能够确保良好的屏蔽效果.屏蔽门在室内外均可操作,根据需要还可安装逃生机构。 四、电（手）动屏蔽门：电（手）动屏蔽门均为插刀式屏蔽门采用熔焊工艺（Co2二氧化碳保护焊）进行连续焊接，传动结构为铰连转动双点锁紧机构，三层电磁密封簧片制作。屏蔽簧片采用铍青铜材料加工成形经真空热处理后达到较好的弹性和耐磨性。簧片为可拆卸式局部如有损坏易于更换，无需专业人员维修。插刀式屏蔽门的刀口采用磁导性较好的铜板制作，使其固有磁性高导电性能及兼顾整个频带来满足屏蔽效能的要求。 由于簧片和其接触部分（屏蔽门的刀口）均属同性材料，电位差相近，所以在互相接触点上不会产生电腐蚀，确保长时间的屏蔽效能。 电手互换锁紧机构装置在门板中部，其齿轮机构大大减轻开启屏蔽门的力度，在门框左边装有双点斜楔锁紧配件，斜楔座架的运行采用轴承滑槽结构，运行平稳轻巧。 电动锁紧屏蔽门设有联动开启，室内外均可操作，根据需要可特殊制作。
英文：The permanent advantage company is the global electromagnetic screen, the EMC specialized manufacturer. The company and the domestic numerous well-known company as well as the numerous well-known colleges and universities, scientific research institution's expert and the scholar have many year cooperations, is this company strong technical support. Causes this company in the product development, technology advancement various aspects to grow swiftly and violently, can develop and the contract independently completes each kind of electromagnetic screen project, has the unit ability, realizes the coordinated process service. The company in the product quality, the technology, the time has the obvious superiority. Is one defends the contract heavy credit the unit. The permanent advantage company develops the high performance electromagnetism screened room, fords the dense shield engine room, the high-pressured test bureau to put shields the workshop, the nuclear magnetic resonance screened room, electromagnetic pulse products and so on protection room, micro wave darkroom, electromagnetic wave shield gate, electromagnetic screen cabinet, follows close on the international vanguard technology unceasing development new product, provides the high performance price for the user compared to the quality product. The product widely uses in domains and so on army, government, aerospace, privacy system, foreign organization, information industries, machinery, medical equipment, research institute, customs, radar navigation, transformer substation electric power and scientific research institute. The permanent advantage company product in the processing, installed and serves each link to follow the international standard strictly, the product already passed the ISO9001:2000 quality control system authentication. The permanent advantage company in the product development, in the engineering design work uses the independent development the special-purpose software and the general CAD technology, guaranteed that fast, precise completes the engineering design and the material choice and the layout. The company has management sound thorough to have the combatant spirit leadership team, to have a research and development troop as well as a technology comprehensive, the experienced mechanic troop, can provide the ideal product and the omni-directional service for the customer. Supplies the product already through the Chinese People's Liberation Army electromagnetic pulse protection examination center examination, as well as the National security agency and so on many departments examines. The permanent advantage company produces the shield gate, each performance is in the leading position in the shield profession. The company produces each kind of standard series shield gate, moreover was skilled in each kind of special specification the electrically operated aeroseal translation shield gate, to lock electrically operated double spreads the tail to shade the gate, the electrically operated promotion shield gate, manual to lock double spreads the tail to shade the gate the research and development and the production, the craft already finalized the production. The permanent advantage company developed has used in the transformer substation mechanical and electrical room specially (electricity) the manual shield gate, gas tightness is good, has many merits, the user selects in abundance. Permanent advantage company equipment excellent, has the leading technique of manufacture and the shield potency test facility, the product target achieves national GB12190-90, the country keeps secret BMB-1999 and the GJBZ20219-94 standard, the product performance examines after the national Department concerned, the disposable qualified rate is 100%. The permanent advantage company take honest as the book, the Heavy tar weight, above the prestige is an objective, fast high quality service, nimble management mechanism, reasonable, and has the competitive power extremely the price, satisfies the user community the demand. The permanent advantage company welcome the general customers to come the electricity, the incoming letter, the visit communal development wholeheartedly, to cooperate together. |
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