Introduction of manual welding

As you know, construction industry requires the technology of welding and the more common method is manual welding instead of machine. However, what is manual welding? How to conduct it? It is the case that manual welding is a kind of welding with the equipment of welding rod which is clamped into a holder. The welding rod can fuse steel sheet to form a steel pipe such as welded steel pipe. Besides, it can also fuse two pieces of steel together. The most commonly manual welding is known as stick welding. The welder can fuse the steel together by electricity in either AC, alternating current as well.

Do you know how welding happened? We all know that a welding rod is coated with a flux coating. When the coating melts, the rod will be burned into the gap between the two pieces of steel which will create a shielding gas. Of course, welding defect will happen with improper operation. If you want to know more information about welding defect, you can read the article ‘welding defect’ for your reference. In fact, manual welding adopts different flux coatings for specific steel or welding applications. According to the thickness as well as application of product, the range of amperage will need to be alternated. Wire welders are often equipped with a cylinder of shielding gas so as to protect the fresh weld from contamination, which is different from manual welding. Do you know the application of manual welding?

The application range of manual welding is wide such as ship building, construction of sky-scrappers. However, different application requires different techniques. The practice of joining steel pipe such as cold rolled steel pipe appear to adopt the same technique with the ship building. Weld speed is also different. For example, weaving style is different, in one application, a single welding pass is all right, while another might need a string of beads.

As it is nomination indicate, manual welding needs more individual input than other forms. Welder’s skill and expertise play a significant role in manual welding which ask steel pipe manufacturer to train employers in regular time. Welder should know how to control the speed of the weld, how to keep puddle size uniform. The standard of welding is strict including welding equipment. We should be meticulous about some details which is vital for the overall project. Do you have any questions about manual welding? Hope to hear from you.