玩弄少妇的肉体K8经典_亚洲AV无码专区亚洲AV不卡_精品国产天堂综合一区在线_国模杨依粉嫩蝴蝶150p

Welcome to the official website of Shenzhen Shengding Building Materials Co., Ltd.!
Service Hotline:

0755-82046743

全球服務(wù)熱線:400-180-6181
全球服務(wù)熱線:400-180-6181

contact us

Shenzhen Shengding Building Material Co., Ltd.

Contact: Mr. Lv

Contact number: 13922838540

Address: No. 333 Longfei Avenue, Huanggekeng Community, Longgang District, Shenzhen

Shenzhen Shengding Building Materials Co., Ltd. Guangzhou Branch

Contact: Miss Rong

Fixed line: 020-38689032   Miss Rong: 13922388560

Guangzhou Branch Address: Building 606, Building D, Youke Business Center, Kexin Road, Tianhe District, Guangzhou

company news

What is an anti-static floor? How to choose an anti-static floor?

Source: Time:2019-01-11 17:13:13 views:

What is an anti-static floor? Anti-static floor is also called a dissipative static floor. When it is grounded or connected to any lower potential point, the charge can be dissipated and the resistance is characterized by a 1.0x105-10Ω. How to choose an anti-static floor better, then how do we choose it when faced with many anti-static floors in the market? Let's take a closer look at it.
What is an anti-static floor? Anti-static floor is also called a dissipative static floor. When it is grounded or connected to any lower potential point, the charge can be dissipated and the resistance is characterized by a 1.0x105-10Ω. How to choose an anti-static floor better, then how do we choose it when faced with many anti-static floors in the market? Let's take a closer look at it.
        1. Firstly, the total area (or number of blocks) of anti-static floor required for the construction of the computer room and the number of various accessories (standard ratio 1:3.5) must be accurately provided, and a margin should be left to avoid waste or shortage.
   
       2. Fully understand the variety and quality of anti-static flooring produced by manufacturers, as well as various technical performance indicators. The technical performance of the anti-static floor mainly refers to its mechanical and electrical properties. Mechanical properties mainly consider its bearing capacity and wear resistance. Install the entire anti-static floor on the lapped girders. After flat anti-static floor, the load-carrying capacity should reach a uniform load greater than 1000kg/m2. The concentrated load on any part of the anti-static floor should be greater than 300kg. When the load of 300kg is loaded on the 6cm loading point, the deflection should be less than 2mm and there is no permanent deformation. The adjustable support should be able to withstand a vertical load of more than 1000kg, and the board surface should have a certain degree of abrasion resistance. Electrical properties are mainly system resistance and surface resistance. The system resistance should be 106Ω-109Ω. When the temperature is 21±1.5°C and the relative humidity is 30%, the electrostatic voltage of the anti-static floor should be lower than 2500V, and the surface resistance should be 106Ω-109Ω.
       

       3. The load of the anti-static floor should be determined based on the weight of the heaviest equipment in all equipment in the equipment room. This can prevent some equipment from being overweight and causing permanent deformation or damage to the floor.
     
      4. The anti-static floor is subject to small changes due to the influence of external environmental conditions. That is to say, the external environment temperature is too high or too low, and the anti-static floor expands and expands, and cannot be removed and replaced. When the temperature is low, the anti-static floor shrinks and produces a loose feeling. The amount of shrinkage of the anti-static floor affected by the environment should be less than 0.5mm, and the deflection of the board surface should be less than 0.25mm.
     
      5, anti-static floor surface should not reflect, no slip, corrosion resistance, no dust, no vacuum, easy to clean.
夜夜躁婷婷AV蜜桃妖精 | 亚洲无码在线免费观看 | 国产精品嫩模被猛烈进入灌浆 | 女人乱子伦免费视频 | 国产又黄又猛视频 | 三人成全免费观看电视剧高清完整版 | 妺妺窝777777野大粗-百度 | 日本強姦少婦一級A片中文字幕 | 国产传媒中文字幕 | 另类老妇性BBwBBw门国产 | 少妇搡BBBB搡BBB搡视频一级 | japanxxxxx| 性欧美BBw性A片仙踪林 | 成人做爰黄A片免费看三区爱奴 | 最新AV片免费网站 | 欧美亚洲在线视频 | 人妻不卡的中文字幕视频在线 | 中文无码精品一区二区三区明星 | 四川野外少妇极品BBB | 中国产真人一级A爱做片喷水 | 亚无毛码大u免费七mhrd和 | 亚洲中文字幕一区二区三区四区 | 99精品久久久久久 | 色综合久久天天综合网 | 日本高清免费不卡一区二区三区在线 | 特级丰满大乳巨爆乳奶水多毛 | 麻豆av大片免费观看 | 日本一区二区在线 | 成人片全裸直播在线观看 | 亚洲小视频在线观看 | 欧美日韩黑人激情 | 中文字幕精品久久久久人妻红杏1 | 亚洲精品一区二区三区四区五区 | 国产精品18禁久久久久久久久 | 日韩网站在线观看 | 日韩av男人天堂 | 影音先锋中文字幕在线一区二区 | 亚洲精品国产成人无码区 | 国产一区中文字幕手机在线 | AV无码专区亚洲AV毛片不卡 | 日韩一级无码Av |