subject: Pipe Welding and Post Weld Heat Treatment – What You Need to Know About Them [print this page] Pipe Welding and Post Weld Heat Treatment What You Need to Know About Them
Pipe welding is the most cost-effective way to fuse pipes together. It uses both heat and cold to turn multiple pieces of pipe into one flush pipe without any fittings.
Why is that so important?
Fittings can slow down pipes from start to finish. They take longer to install that simply welding the pipes together, so they make entire construction projects take longer. And, fittings can get in the way once a pipe is installed meaning that they can cause flow restrictions, which makes your pipes less effective.
Because it's a faster and more effective way of manufacturing, pipe welding has become incredibly important to the manufacturing world. In fact, it has become so important that it has turned into a huge industry that introduces new technology all the time. A lot of that new technology focuses on
Post weld heat treatment is the work done after something has been welded. It uses new heat to improve old welding work. Post weld heat treatment can eliminate brittleness that has evolved on metal pipes over time, or it can be used to strengthen metal that has been weakened by lots of use.
Induction bending is the most common form of post weld heat treatment. It uses an incredibly hot coil; as the pipe starts to get hot, the metal becomes pliable. Induction bending is literally used to bend steel pipes.
Induction bending is such a common form of pipe welding because it leaves the metal with a high quality finish. All of the bends and curves are smooth, which makes the pipes themselves more effective.
However, as pipe welding tools and techniques get better and better, the need for post weld heat treatment diminishes a bit. Butt welding is a great example of technology that isn't completely dependent on post weld heat treatment.
Butt welding joins two pieces of metal or plastic together along a single edge. The two pieces are laid side-by-side and welded together. If it's done correctly, you will never see a seam. And, the work is so durable that you won't need post weld heat treatment later to make any improvements.
Because it's so effective, butt welding has become a common technique for manufacturing various machines, tools, and equipment.
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