Welding
When we work with technical textiles, welding is one of the most important parts of the process. This is where the materials are joined and gain the strength, density, and durability required to withstand harsh environments and long-term use. At Kungsäter Industri , we Kungsäter Industri several different welding methods including HF welding, hot wedge welding, and hot air welding and we always select the technique that best suits the material, the design, and the requirements of the final product. By combining the right method with our experience and precision, we create joints that last over time and meet high quality standards. Below, you can read more about the different techniques and how they are used in our projects.
HF – Welding
HF welding is the welding method we most frequently use when manufacturing our products. HF welding uses electromagnetic waves to heat and fuse the material from the inside, resulting in extremely strong and completely leak-proof joints. Our HF welders are mounted on long welding tables where they can be moved sideways, either manually or automatically.
Because there are multiple machines on each welding table, we can either work individually on smaller products at each machine or coordinate multiple machines to work on larger products. HF welding is best suited for straight welds and for smaller welds with a specific shape. In terms of the work environment, HF welding has the major advantage that it produces neither smoke nor odor during the welding process.
Heat-wedge welding
We primarily use hot wedge welding for long welds that are not straight. In hot wedge welding, two fabric layers are joined together using a heated wedge that creates a smooth and controlled melt. We have several hot wedge welders that are essentially designed like large sewing machines, but with welding units instead of sewing needles.
Some of our machines are mobile and can be moved around; these are used for our very large products, while the stationary machines are used for our smaller products. We also have smaller, freestanding heat-wedge welders that are manually controlled during welding.
Hot-air welding
We use hot-air welding, among other things, to join together very large sheets of fabric that cannot fit into our HF welders or hot-wedge welders. We also use this method to perform repairs and modifications on products in the field.
In hot-air welding, a stream of hot air is used to soften the surface of the material before it is pressed together. Heat exposure is the most critical factor in hot-air welding. In the hot-air welders we use in production, the drive, temperature, and air flow are controlled very precisely to ensure optimal heat exposure.
Choice of technicla textile
The choice of fabric material is crucial for the finished product’s functionality, durability, and lifespan. Different materials have unique properties, such as strength, flexibility, weather resistance, chemical resistance, or UV resistance, and the choice of fabric is based on how and where the product will be used.
Did you know that we can also help you achieve crisp, professional printing on your product? Discover the printing techniques we offer and find out which one would best suit your specific needs.