国产精品99久久久久久猫咪,亚洲国产精品一区二区制,亚洲 欧美 国产 日韩 字幕,亚洲男人的天堂色偷免费

Welcome to Shenzhen Zhongyuan Plastic Co., Ltd!

News



Tel:(0755)27151698
Fax:(0755)27150611
Mailbox:szzyzcl@163.com / szzy@szzy99.com
Add:Building A1 and A2, No.1 Industrial Zone, yuliu property company, Gongming town, Bao'an District, Shenzhen
Industry information

當前位置:

首頁 News Industry information

Material properties of plastic shell of power supply

Release time:2024-06-19

1、 Light weight

LED WaterproofPlastic shell of power supplyIt is a light material with a relative density of 0.90~2.2. Obviously, can the plastic shell of LED waterproof power supply float to the water? In particular, the foamed led waterproof power supply plastic shell has micropores, so the texture is relatively light, and the relative density is only 0.01. This feature makes the plastic shell of LED waterproof power supply can be used to produce products that need to reduce self weight.


2、 Excellent chemical stability

Most of the waterproof plastic shells of LED power supply have good corrosion resistance to acid, alkali and other chemicals. In particular, the chemical stability of polytetrafluoroethylene (F4), commonly known as the plastic shell of LED waterproof power supply, is even better than gold. It will not deteriorate after boiling in "aqua regia" for more than ten hours. F4 is an ideal corrosion-resistant material because of its excellent chemical stability.

汽車配件殼9.jpg


3、 Excellent electrical insulation

The plastic shell of ordinary led waterproof power supply is a poor conductor of electricity, and its surface resistance and volume resistance are very large, which can reach 109~1018 ohms in numbers. The breakdown voltage is large, and the dielectric loss tangent is very small. Therefore, led waterproof power plastic shell is widely used in the electronic industry and machinery industry.


4、 It is a poor conductor of heat, which has the effect of silencing and shock absorption

Generally speaking, the thermal conductivity of the plastic shell of LED waterproof power supply is relatively low, equivalent to 1/75-1/225 of steel. The pores of the plastic shell of foam led waterproof power supply contain gas, so its heat insulation, sound insulation and seismic performance are better. For example, the thermal conductivity of polyvinyl chloride (PVC) is only 1/357 of steel and 1/1250 of aluminum. In terms of thermal insulation capacity, single glass plastic windows are 40% higher than single glass aluminum windows, and double glass windows are 50% higher. The window of LED waterproof power supply plastic shell can be used in residential buildings, office buildings, wards and hotels after being combined with insulating glass, saving heating and air conditioning costs in winter and summer, with obvious benefits.

Copyright: Shenzhen Zhongyuan Plastic Co., Ltd. | mold processing customized manufacturer. If you want to know the processing price of the factory, how much is it, and which is good, please contact us Yue ICP Bei No. 17060480
久久夜色精品亚洲艾草网| 尤物福利视频在线免费观看| 欧美国产在线一区二区三区| 日韩综合网一区二区三区| 宅男午夜视频在线观看解说| 久久99精品国产首页热| 人妻精品久久久久中文字幕| 欧美性大战xxxxx久久| 欧美xxxx黑人又粗又长精品| AV无码久久久精品免费| 久久国产视频网| 国产麻豆剧传媒精品国产av| 熟女精品色一区二区三区| 国产精品国产三级国产专区53| 最新的av网站在线播放| 一区二区三区欧美亚洲精品| 久久蜜精品国产亚洲av| 亚洲成av人精品自偷拍| 欧美a在线观看| 91自拍偷拍一区二区三区| 毛片一区二区三区的视频| AV无码久久久精品免费| 亚洲男女一区二区三区| 岛国免费动作片av无码| 日日噜噜夜夜狠狠久久av| 久久久亚洲国产一区二区| 加勒比东京一区二区三区| 99视频精品热播免费观看| 亚洲av自偷自拍亚洲一区| 亚洲欧美日韩不卡一区二区| 在线观看国产生活动作片| 精品免费一区二区三区视频 | 国精产品一区一区三区有限在线| 欧美高清免费精品国产自| 亚洲福利片视频在线观看| 免费av手机在线观看片| 青娱乐亚洲天堂| 六月丁香婷婷久久久久久久| 最近中文字幕在线mv视频在线 | 国产精品又爽又粗又长又硬| 日韩欧美亚洲另类激情一区|