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镀锌管的热镀锌和冷镀锌从哪些方面区分?

来源:http://www.jnxxjm.com

【 发布于:2018-11-02 17:09:47 】


1.工艺的区别:

1. the difference between processes:

热镀锌是将工件除油、酸洗、浸药、烘干后浸入溶化的锌液里一定时间,提出来即可。

Hot-dip galvanizing is to remove oil, pickle, dip medicine, and immerse the workpiece in the dissolved zinc solution after drying for a certain time, then put forward.

冷镀锌也叫电镀锌,是利用电解设备将工件经过除油、酸洗后放入成分为锌盐的溶液中,并连接电解设备的负极;在工件的对面放置锌板连接在电解设备的正极 ,接通电源,利用电流从正极向负极的定向移动,就会在工件上沉积一层锌。

Cold galvanizing, also known as galvanizing, is the use of electrolytic equipment to remove oil and pickle the workpiece into the solution of zinc salts, and connect the negative electrodes of the electrolytic equipment; on the opposite side of the workpiece, place a zinc plate to connect the positive electrodes of the electrolytic equipment, turn on the power supply, and use the current to move from the positive to the negative electrodes in a directional way, it will sink on the workpiece. Deposit a layer of zinc.

2.外观的区别:

20171219787446.jpg

2. the difference between appearance and appearance:

电镀锌外表比较光滑、明亮,采用彩色钝化工艺的电镀层也黄绿色为主色,呈七彩。采用白色钝化工艺的电镀层呈青白色或白色呈绿光,白色钝化工艺的镀层与阳光呈一定角度下略显七彩。镀锌管知识门户网

The appearance of galvanizing is smooth and bright. The electroplating layer with color passivation process is also yellow-green, showing seven colors. The white passivation coating is blue-white or green, while the white passivation coating is slightly colorful from a certain angle to the sunlight. Knowledge portal for galvanized pipes

在复杂工件的角棱部位容易产生“电烧”而成灰暗,该部位锌层较厚。在阴角部位易形成电流死角而产生欠电流灰暗区,该区域锌层较薄。工件整体无锌瘤、结块等现象。镀锌管的相关知识

In the corners of complex workpieces, it is easy to produce "electric burn" and become dark. The zinc layer is thicker. It is easy to form a current dead angle in the negative corner and produce an undercurrent dark area, which is thinner in the area. The workpiece has no zinc nodules and lumps. Knowledge of galvanized pipe

3.热镀锌外观较电镀锌稍微粗糙,呈银白色,外观容易产生工艺水纹和少许滴瘤,尤其是在工件的一端较为明显。但热镀锌的锌层比电镀锌厚几十倍,防腐蚀性能 是电镀锌的几十倍。

3. The appearance of hot-dip galvanizing is slightly rougher and silver-white than that of galvanizing. The appearance of hot-dip galvanizing is prone to process water marks and a few droplets, especially at one end of the workpiece. However, the zinc coating of hot dip galvanizing is several times thicker than that of zinc electroplating.



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