镀锌钢管尺寸规格表图

作者: 镀锌管 来源: www.niutoug.com 日期: 2019-05-14 08:48:52 人气: - 评论: 24

镀锌钢管尺寸规格表图在我们的建筑施工过程中用途广泛,技术人员根据设计图纸,结合镀锌钢管的使用用途选择相应的规格尺寸。对照规格表图就能选择对应的镀锌管尺寸。是承重还是水压消防管道等等下面给大家介绍:


镀锌钢管尺寸规格表图钢管在我们日常生活中应用广泛。

石油、天然气的运输,制造建筑结构网架,制造公路桥梁等领域,可以说钢管不仅减轻了支架重量,节省了建材,还使得施工也变得越来越简易。想必在钢材买卖和建筑施工中了解钢管的重量是必要的。


镀锌钢管尺寸规格表图镀锌钢管应用


镀锌钢管表面有热浸镀或电镀锌层的焊接钢管。镀锌可增加钢管的抗腐蚀能力,延长使用寿命。镀锌钢管用途很广,除作输水、煤气、油等一般低压力流体的管线管外,还用作石油工业特别是海洋油田的油井管、输油管,化工焦化设备的油加热器、冷凝冷却器、煤馏洗油交换器用管,以及栈桥管桩、矿山坑道的支撑架用管等。热镀锌带钢管被广泛应用于各类现代制造工业。


镀锌钢管尺寸规格表图热镀锌钢管


热镀锌钢管是使熔融金属与铁基体反应而产生的合金层,从而使基体和镀层二者相结合。热镀锌是先将钢管进行酸洗,去除钢管表面的氧化铁,酸洗后送入氯化铵或氯化锌水溶液或氯化铵和氯化锌混合水溶液槽中进行清洗,然后再送入到热浸镀槽中。热镀锌具有镀层均匀、附着力强、使用寿命长等优点。热镀锌钢管基体与熔融镀液发生复杂的物理及化学反应,形成耐腐蚀且结构紧密的锌一铁合金层。合金层与纯锌层、钢管基体融为一体,其耐腐蚀性能强。


镀锌钢管尺寸规格表图冷镀锌钢管


冷镀锌钢管就是电镀锌,镀锌量很少,只有10-50g/m2,其本身的耐腐蚀性比热镀锌刚管差很多。为了保证质量,正规的镀锌管生产厂家一般不采用电镀锌,只有那些规模小、设备陈旧的小企业才会采用电镀锌,而他们的价格自然也比较便宜。冷镀锌钢管的镀锌层是电镀层,锌层与钢管基体独立分层。锌层较薄,简单附着在钢管基体上,比较容易脱落,其耐腐蚀性能差。建设部早已正式下文,淘汰技术落后的冷镀锌刚管,不准将其作给水、煤气管。在新建住宅中,也严令禁止使用冷镀锌钢管作为给水管。


镀锌钢管尺寸规格表图镀锌管是什么


镀锌钢管分为冷镀锌管、热镀锌管,最初镀锌钢管作为水管使用,几年后管内就产生了大量锈垢,流出黄水不仅污染洁具,而且夹杂着不光滑内壁滋生的细菌,锈蚀造成水中重金属含量过高,严重危害人体健康。于是在六七十年代,发达国家开始研发新型管材,并陆续禁用镀锌钢管。我国也发文明确从2000年起禁用镀锌钢管,目前大多新建小区已很少使用镀锌钢管了,但也有些小区还在使用镀锌钢管。


镀锌钢管尺寸规格表图表中规格包含国标所需的各种规格如DN20-DN25-DN32~DN200等等不一一例举了。总之我们都要对应相应工程选择相应的镀锌管品种。好了就到这里吧,祝大家发财!

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