镀锌彩钢板焊接用什么方法及注意哪些？

在当今社会，镀锌彩钢板是各行各业和各种建筑结构中的主要构件之一。那么，镀锌板是如何制作的，采用什么方法焊接镀锌板，应注意什么？
镀锌彩钢板实际上是一种钢板，但它上面覆盖一层锌，以防止铁与外界空气和湿气接触，然后氧化生锈。由于其外形美观、性能高等优点，镀锌板在世界各地很受欢迎，产量也很大。因此，如何高效地焊接镀锌铁一直是企业用户的难题。我们知道现在常用的焊接方法有几种。
1手工电弧焊
这是 镀锌彩钢板的手工电弧焊方法。它起源于19世纪的俄罗斯。经过两个世纪的不断发展和完善，手工电弧焊已经进入各大生产车间，甚至出现在家庭中。值得注意和理解的是：

In today's society, galvanized sheet is one of the main members in all walks of life and all kinds of building structures. So, how is galvanized sheet made, what methods are used for galvanized sheet welding and what attention should be paid to?

Galvanized sheet is actually a kind of steel plate, but it is covered with a coat of zinc to prevent the iron from contacting with the air and moisture outside, and then oxidizing and rusting. Because of its beautiful appearance, high performance and other advantages, galvanized sheet is very popular all over the world, and its output is very large. Therefore, how to weld galvanized iron efficiently has always been a problem for business users. We can know that there are several welding methods commonly used now.
1. Manual arc welding
This is a manual arc welding method for galvanized sheet. It originated from Russia in the 19th century. After two centuries of continuous development and improvement, manual arc welding has entered the major production workshops, and even appeared in the family. It is worth noting and understanding that:
There are two kinds of power sources for arc welding: DC power source and AC power source; there are two kinds of welding strips: acidic welding strip and alkaline welding strip. The acid bar is suitable for both kinds of current, but the basic bar can only be welded by direct current. The advantages of manual arc welding are also obvious, such as convenient operation, simple machinery, various ways, suitable for a variety of welding materials and so on. However, its disadvantages are also prominent: its work efficiency is relatively low and requires relatively large labor intensity, so it is not suitable for large-scale production operations
2. Gas metal arc welding
This method uses welding wire and arc as heat source to melt metal to achieve welding purpose. In the whole process of operation, the welding wire and welding position will be in the gas protection (inert or active), which can prevent the harm of the surrounding gas. The advantages of GMAW are as follows: