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首页 > 供应产品 > 镀锌钢管 镀锌管 厂家加工 一站式供应
镀锌钢管 镀锌管 厂家加工 一站式供应
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产品: 浏览次数:20镀锌钢管 镀锌管 厂家加工 一站式供应 
加工服务: 可按需加工
可售卖地: 全国
执行标准: 国标
单价: 4000.00元/吨
最小起订量: 1 吨
供货总量: 99 吨
发货期限: 自买家付款之日起 3 天内发货
有效期至: 长期有效
最后更新: 2021-10-20 10:55
  询价
详细信息
 "热镀锌管,为提高钢管的耐腐蚀性能,对一般钢管进行镀锌。镀锌钢管分热镀锌和电镀锌两种,热镀锌镀锌层厚,电镀锌成本低,表面不是很光滑。
热镀锌管
热镀锌管是使熔融金属与铁基体反应而产生合金层,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,为了去除钢管表面的氧化铁,酸洗后,通过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,然后送入热浸镀槽中。热镀锌具有镀层均匀,附着力强,使用寿命长等优点。钢管基体与熔融的镀液发生复杂的物理、化学反应,形成耐腐蚀的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。故其耐腐蚀能力强。
1、镀锌层的均匀性:钢管试样在硫酸铜溶液中连续浸渍5次不得变红(镀铜色)。
2、表面质量:镀锌钢管的表面应有完整的镀锌层,不得有未镀上的黑斑和气泡存在,允许有不大的粗糙面和局部锌瘤存在。
3、镀锌层重量:根据需方要求,镀锌钢管可作锌层重量测定,其平均值应不小于500g/平方米,其中任何试样不得小于480g/平方米。ta:image/svg+xml;charset=utf-8,%3Csvg class='icon' viewBox='0 0 1024 1024' xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cdefs%3E%3Cstyle%3E@font-face{font-family:feedback-iconfont;src:url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.eot?%23iefix) format(%26apos;embedded-opentype%26apos;),url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.woff2) format(%26apos;woff2%26apos;),url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.woff) format(%26apos;woff%26apos;),url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.ttf) format(%26apos;truetype%26apos;),url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.svg%23iconfont) format(%26apos;svg%26apos;)}%3C/style%3E%3C/defs%3E%3Cpath d='M862.057 708.024H774.74a22.958 22.958 0 0 0-22.565 23.35V910.72a23.743 23.743 0 0 0 6.671 16.483 21.78 21.78 0 0 0 15.894 6.671h87.318a21.584 21.584 0 0 0 15.698-6.671 23.743 23.743 0 0 0 6.672-16.483V731.57a24.724 24.724 0 0 0-6.476-16.678 22.565 22.565 0 0 0-15.894-6.868z' fill='%23ddd'/%3E%3Cpath d='M861.861 517.886h-699.92a22.958 22.958 0 0 0-22.76 23.547v89.476a22.958 22.958 0 0 0 22.76 22.958h268.43a14.913 14.913 0 0 1 14.717 14.913v242.136a22.958 22.958 0 0 0 6.672 16.287 22.173 22.173 0 0 0 15.894 6.671h88.3a22.173 22.173 0 0 0 15.893-6.671 22.958 22.958 0 0 0 6.671-16.287V668.387a15.698 15.698 0 0 1 4.317-10.792 14.717 14.717 0 0 1 10.4-4.317h268.626a22.958 22.958 0 0 0 22.958-23.154v-88.691a22.958 22.958 0 0 0-22.958-23.547z' fill='%23ddd'/%3E%3Cpath d='M261.033 708.024h-87.318a22.958 22.958 0 0 0-22.565 23.35V910.72a23.743 23.743 0 0 0 6.671 16.483 21.78 21.78 0 0 0 15.894 6.671h87.318a22.37 22.37 0 0 0 15.894-6.671 24.724 24.724 0 0 0 6.476-16.68V731.375a22.958 22.958 0 0 0-22.37-23.35zm213.292-427.761h87.122q22.566 0 22.566 22.565v145.007q0 22.566-22.566 22.566h-87.122q-22.565 0-22.565-22.566V302.828q0-22.565 22.565-22.565zM161.746 90.125H861.86q22.566 0 22.566 22.565v85.553q0 22.565-22.566 22.565H161.746q-22.566 0-22.566-22.565V112.69q0-22.565 22.566-22.565zm612.993 190.138h87.122q22.566 0 22.566 22.565v145.007q0 22.566-22.566 22.566H774.74q-22.565 0-22.565-22.566V302.828q0-22.565 22.565-22.565zm-601.024 0h87.122q22.566 0 22.566 22.565v145.007q0 22.566-22.566 22.566h-87.122q-22.565 0-22.565-22.566V302.828q0-22.565 22.565-22.565z' fill='%23ddd'/%3E%3C/svg%3E"); height: 1000px; position: absolute; top: 0px; left: 0px; width: 750px;" alt="" />
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