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标题: 宝钢压型彩钢板深蓝色彩钢瓦定制暗扣瓦楞板锁边瓦复合瓦 [打印本页]

作者: fsminQ    时间: 2021-12-28 11:26
标题: 宝钢压型彩钢板深蓝色彩钢瓦定制暗扣瓦楞板锁边瓦复合瓦
彩钢板基材钢板的材质从屈服强度300Mpa550Mpa、厚度从0.3mm~0.8mm都有。材质和厚度的选择是为彩钢板的承载力服务。
由于各供应商的板型不一样、各自要求的檩条间距不一样,所以无法给出一个普适标准。彩钢板基板镀层防腐镀层中镀铝锌或镀锌的含量,
保证了彩钢板的抗腐蚀性能。其中防腐镀层有两种:镀铝锌(其中55%铝)、镀锌。其中镀铝锌的防腐性能更好,如果用于屋面板,
可以不需要外覆彩涂、直接用镀铝锌原色,当然也可以在镀铝锌上加彩涂;镀锌的防腐性能稍差,但是因为铝贵、锌便宜,
且加大镀锌的镀层量之后,用于有彩涂的彩钢板防腐性能也是不错的选择。钢铁的活泼性不如铝、锌,所以,在钢板表面镀上铝锌,
当然是铝和锌先被氧化;然后产生的氧化铝、氧化锌会在钢铁表层形成致密的保护膜,保护内层的钢板不被腐蚀。
所以,镀铝锌/镀锌的量保证了彩钢板的抗腐蚀性能。
The material of color steel plate ranges from yield strength of 300Mpa to 550Mpa and thickness from 0.3mm~0.8mm.
The material and thickness are chosen to serve the bearing capacity of the color steel plate.
A universal standard cannot be given due to different plate types and different purlin spacing.
The content of aluminum galvanizing or galvanizing in color steel plate substrate plating ensures the corrosion resistance of color steel plate.
There are two kinds of corrosion coating: galvanized (55% aluminum) and galvanizing.Aluminum galvanized corrosion performance is better,
if used for house panel, can not need external color coating, direct aluminum galvanized color, of course,
can also be added to aluminum galvanized color; galvanizing corrosion resistance is slightly poor, but because aluminum is expensive, zinc cheap,
and increase the amount of galvanized coating, for the color steel coating corrosion performance is also a good choice.
The activity of steel is not as lively as aluminum and zinc, so plating aluminum and zinc, of course, aluminum and zinc are oxidized first;
then the aluminum oxide, zinc oxide will form a dense protective film on the steel surface, to protect the inner steel plate from corrosion.
Therefore, the amount of aluminum galvanizing / galvanization ensures the corrosion resistance of the color steel plate.

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