2020/06/28

How to identify inferior quality square tube machine equipment

Substandard square tube machines simply present folding. Folding is a variety of fold lines in the appearance of the square tube. This defect often runs through the entire longitudinal direction of the product. The reason for folding is that inferior manufacturers seek high efficiency, the reduction amount is too large, ears occur, and folding occurs during the next rolling process. The folded product will crack after bending, and the strength of the steel will be greatly reduced.

2020/06/29

What should be paid attention to when using a welding machine group?

Generally speaking, the formulation of a welding pipe machine must comply with safety operating procedures. Operators must not come into contact with the mold during operation, and must pay attention to placing their hands in the pipe outlet direction to avoid any health and safety risks due to improper operation. In addition, before operating the welding pipe machine, operators should check whether each lubrication point is properly lubricated. If not, add some lubricating oil to ensure the normal operation of the machine. During the use of the welding pipe machine, it is important to use high-temperature resistant synthetic composite aluminum-based lubricating grease to prevent damage to the welding pipe machine.

2020/07/01

What should be paid attention to when using high-frequency welding pipe machine groups?

First, during use, we must strictly follow the operating procedures in the instruction manual. We must not overload the machine. Before starting production, that is, before operating the machinery, we must check whether all parts of the machinery are functioning normally and whether there are any malfunctions. Only when all parts and indicators of the machinery are normal can the machine be started and put into production; otherwise, it will cause damage to the machinery.

2020/07/06

The pipe blank was scratched by the welding machine in the pipe welding unit.

Scratches in the guiding section generally occur on both sides of the tube blank. If the guiding structure with the guide sleeve is improperly adjusted, frictional scratches will also appear on the upper and lower surfaces of the tube blank. These scratches are characterized by a relatively large and continuous wound area. This is mainly because the height of the guide sleeve is incorrect, or the bearings of the upper and lower guide rollers are damaged, resulting in poor control of the tube blank and friction with the guide sleeve. In addition, scratches on both sides of the tube blank can also be caused when the guide roller deviates too far from the rolling center line, or when the axial difference between the guide sleeve and the guide roller is too large.

2020/07/14

The manufacturing process of a longitudinal welded pipe machine?

The production process of straight seam welded pipes is simple, with high production efficiency and low cost, and it has developed rapidly. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. It can produce welded pipes with larger diameters using narrower slabs, and it can also produce welded pipes with different diameters using slabs of the same width. However, compared with straight seam pipes of the same length, the weld length increases by 30~100%, and the production speed is lower.

2020/07/20

What should I do if there is a crack in the welding pipe equipment?

When using pipe welding equipment, especially in welding techniques, we often encounter the problem of seam cracking. Seam cracking refers to the inability of the weld seam to fully adhere during welding, resulting in substandard product quality. Cracks in pipe welding equipment are typically several centimeters or even larger. So, what causes seam cracking during pipe welding?

2020/07/30

The process of producing oil casing pipes with a welding machine group

The application of pipe welding units in daily production is very common. Using pipe welding units to produce oil casing pipes has also become a trend, mainly due to the advantages of pipe welding units. Generally speaking, oil casing pipes can be produced using hot-rolled seamless steel pipes, or by welding with pipe welding units. The latter is more common in daily life. Because oil casing pipes produced by welding have a weld seam, issues such as matching the toughness of the base material and the weld seam, weld seam gray spots, and weld seam groove corrosion need to be addressed. When welding oil casing pipes, care should be taken to avoid these problems.

2020/08/04

Points to note when producing welded pipes

First, it is a major component of light steel industrial buildings (mostly single-story, some 2-3 stories), such as roof panels, wall panels, floor panels, beams, columns, purlins (roof and wall), supports, and door and window frames. The general steel usage is about 40 kg/square meter. Based on an annual completed area of 5 million square meters, 200,000 tons of steel are needed, including 150,000 tons of cold-formed steel.

2020/08/10

What conditions must precision welding pipe machines meet?

Regarding the use of the Xinfengxiang automatic welding machine, a specialized manufacturer of welded pipe machines in Yangzhou, high-quality welding performance requires strict quality standards for the pipes themselves. Precision welded pipe machine equipment requires the following conditions

2020/08/13

What adjustment methods are available for welding machine unit malfunctions?

When scratches occur, this usually happens on both sides of the transverse and longitudinal axes of the pipe section, often caused by the edges of the horizontal and vertical roll dies. In this case, we need to check if the rolls are displaced, if the bearings are damaged, and if the machine parameters are misaligned. Although this is a phenomenon that should not occur due to human error, it is unavoidable in reality.