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冷镀锌管的生产离不开哪些技术?

来源:http://www.jnxxjm.com

【 发布于:2018-08-13 14:59:42 】


冷镀锌管就是电镀锌,镀锌量很少,只有10-50g/m2,其本身的耐腐蚀性比热镀锌管相差很多。正规的镀锌管生产厂家,为了保证质量,大多不采用电镀锌(冷镀)。只有那些规模小、设备陈旧的小企业采用电镀锌,当然他们的价格也相对便宜一些。目前建设部已正式下文,淘汰技术落后的冷镀锌管,今后不准用冷镀锌管作水、煤气管。 冷镀锌钢管镀锌层是电镀层,锌层与钢管基体独立分层。锌层较薄,锌层简单附着在钢管基体上,容易脱落。故其耐腐蚀性能差。在新建住宅中,禁止使用冷镀锌钢管作为给水管。

Cold galvanized pipe is galvanized, the amount of galvanized is very small, only 10-50g/m2, its corrosion resistance is much different than hot galvanized pipe. Regular galvanized pipe manufacturers, in order to ensure quality, most do not use galvanized (cold plating). Only small businesses with obsolete equipment adopt galvanizing, and their prices are relatively cheap. At present, the Ministry of Construction has formally set down the following, the elimination of backward technology of cold galvanized pipes, cold galvanized pipes are not allowed to be used for water, gas pipes. The galvanized layer of cold galvanized steel pipe is an electroplating layer, and the zinc layer is separately separated from the steel tube substrate. The zinc layer is thin, and the zinc layer is simply attached to the steel tube substrate, so it is easy to fall off. Therefore, its corrosion resistance is poor. In new buildings, cold galvanized steel pipes are not allowed to be used as water pipes.

1、涂料式冷镀锌

  1. Coating cold galvanizing

    20171214420440.jpg

这种冷镀锌方管,主要是利用涂锌料来在方管的表面进行涂层的,这样会是的方管的表面形成一个带有金属锌的涂层,这个涂层就能很大程度上隔绝方管和外界的接触,也有效的避免了大气对方管的腐蚀。但是其缺点是由于是涂层式的镀锌,所以镀锌层不是很稳定,容易划伤和碰掉。但是也有其优点和便利。因为一旦发现有所损坏,我们可以利用涂料进行补救在损坏处,不用进行重新的镀锌处理。这是其他镀锌方管无法比拟的。

This kind of cold galvanized square pipe is mainly coated with zinc coating material on the surface of the square pipe. This will form a zinc coating on the surface of the square pipe. This coating can greatly isolate the square pipe from the outside contact and effectively prevent the atmospheric corrosion of the square pipe. But its disadvantage is due to the coating galvanizing, so the galvanizing layer is not very stable, easy to scratch and brush off. But it also has its advantages and convenience. Because once we find any damage, we can use paint to remedy the damage without re-galvanizing. This is comparable to other galvanized square tubes.

2、电镀式冷镀锌

2. Galvanized cold galvanizing

这种方法所生产出的镀锌方管是现在冷镀锌方管中为主要的产品。因为这种镀锌方法具有生产成本低、易操作、镀锌层较为稳定等特点。这也是我们很多镀锌方管厂家看中这种镀锌方管的原因。

The galvanized square tubes produced by this method are the most important products in the cold galvanized square tubes. Because this galvanizing method has the characteristics of low production cost, easy operation and stable galvanizing coating. This is why many of our galvanized square tube manufacturers look at this galvanized square tube.

电镀锌其原理主要是靠就是利用电解,在制件表面形成均匀、致密、结合良好的金属锌沉积层的过程。这种镀锌方法所产生的锌层是相对稳定的,是不容易脱落的这也就给这种冷镀锌管在耐腐蚀性能上大大加分。有效解决了其它冷镀锌方法在锌层的稳定上的问题。

The principle of zinc electroplating mainly depends on the formation of uniform, compact and well-bonded zinc deposits on the surface of the parts by electrolysis. The zinc coating produced by this galvanizing process is relatively stable and is not easy to fall off, which greatly adds to the corrosion resistance of this cold galvanized tube. The problem of stabilizing the zinc layer in other cold galvanizing methods is effectively solved.



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