PNEUMSYS ADVANCE ENERGY SOLUTIONS (PAES) is proud to be represented as a prominent manufacturer and service provider in compressed air, pharmaceutical, automotive, plastic and food industries, and solutions.
We stock only the highest quality and most advanced products to ensure that your plant remains at elevated operating performance, with minimum downtime, which ensures a high yield and a healthy bottom line. We have adequate engineering experience and resources to offer you quality energy saving solutions.
Apparently, immediate advances in materials and welding techniques have resulted in impeccable improvements in the reliability of piping solutions implemented over industries.
As mentioned, however, there is still piping systems in use that is vulnerable to corrosion and seam-related defects. Consequently, these defects are identified with the help of integrity assessments and we take immediate initiative to repair it quickly.
In light of the same, ERW Piping solutions forwarded currently are subjected to non-destructive tests that include ultrasonic testing as well as pressure-testing. The principles of Resistance Welding.
Consequently, the principle involved in resistance welding is that when an electric current is passed through the junction, a high temperature is obtained by the resistance of the metal to the passage of the current. In addition, the contact surfaces are not in perfect contact and offer the highest resistance and are thus heated up first.
Accordingly, we test the pressure potential of each individual section of the piping solution during the actual construction process and leave no stones unturned to reach efficiency in our work.
The utility of ERP piping solutions could be seen in various engineering purposes, including fencing, scaffolding, lines pipes.
Now, the reason we recommend the ERW pipeline solution is due to the surface advantages. And the other vital advantage is these piping solutions are economic and works fine in low-pressure applications.
In another timeline, in context to attributes, Electric Resistance Welded steel pipes, ERW steel pipes or high frequency welded pipe for short, it has a number of advantages:- Offers high production efficiency at low cost and the price is comparative low for UOE steel pipes.
- The physical attributes include astuteness in size and high precision, better than roundness, spiral welded pipe, can save a lot of man-hours on-site counterparts;
- Has smooth surface, beautiful appearance, favor within external coating applicator.
- Water pipes. It could be used for agricultural and irrigation purposes.
- Gas pipelines (for natural gas)
- Tubes made of steel.
PNEUMSYS ADVANCE ENERGY SOLUTIONS (PAES) uses the electric resistance welding (ERW) process to obtain a continuous longitudinal weld on our tubing. This process depends on a number of important factors to ensure a complete weld.
The most important of these factors are:- Strip width
- Strip preparation through the mill forming and fin pass stands
- Induction of current in the strip, the concentration of the current, and resulting heating of the steel along the strip edges
- Presentation of the strip edges at the tube mill weld stand
- Squeeze-out of the resultant molten metal
Strip width Each size of the tube produced has its own unique strip width. The strip width is calculated using various parameters, including finished tube size, tube wall thickness, the radius of corners desired (for square and rectangular tubing) and theoretical squeeze-out of molten metal at the weld head.
PAES purchases steel coils from primary mill sources and slits the coils to width on its own slitters in-house. The strip width is controlled to ± 0.020 inches.
Strip preparation In particular, an integral part of obtaining a sound weld is ensuring the strip edges are prepared properly prior to welding. This is accomplished by passing the strip, through a series of rolls called fin passes.
Accordingly, the fin passes are designed to burnish the strip edges to clean them for welding and ensure the edges are beveled to the proper angle that allows the strip edges to come together evenly.
Therefore, the strip edges must meet in such a manner that there is no gap at the top (outside of the tube) or bottom (inside of the tube).
Furthermore, this ensures an even amount of extrusion, or squeeze-out at the weld head (sometimes referred to as weld pressure rolls), without mismatch. Mismatch occurs when one strip is higher or lower than the other when the two edges meet.
Welding There are two methods of heating the strip edge in electric resistance welding. One method is to induce current into the tube with contact shoes. The contact shoes are copper-based contacts that allow the current to flow into the base metal that is to be welded. The contact shoes are positioned close to the strip edges, in front of the weld pressure rolls. The second method utilizes a high-frequency induction coil
At a glance, our team is highly trained and experienced in servicing and producing ERW piping solutions or steel supplies.
Therefore, even if you've got a large construction project, or need parts for industrial machinery, our team of piping solution consultants will ensure that your project is provided with the parts you need when you need them.
This is a non-contact method of inducing the current into the strip. This is also positioned in front of the weld pressure rolls.
