HF welder RF welder RF welding machines
HF welder RF welder RF welding machines
What is HF welding or RF welding?
High Frequency (HF) or Radio Frequency (RF) welding is a technique used to join thermoplastic materials. It employs radio waves and pressure to create strong, high-quality welds. Operating at 27.12 MHz, this process uses electromagnetic energy to generate heat within the materials being joined.
How does HF welding or RF welding work?
HF welding involves a few key steps:
- Energy Generation: A generator produces HF energy.
- Energy Application: An electrode tool delivers this energy to the material surfaces.
- Heat Generation: The energy causes the molecules within the material to move, generating heat internally.
- Material Softening: This internal heat softens the material, allowing it to fuse.
- Cooling Under Pressure: As the material cools under pressure, a strong, durable weld is formed.
Unlike other welding methods, HF welding does not require an external heat source. The heat is generated within the material itself, leading to weld seams that are often as strong or stronger than the surrounding material.
Why use high frequency or radio frequency?
HF-welding is by far the best method for joining PVC and PU materials. The weld is much stronger, compared to other technologies, such as hot air, hot wedge or impulse welding. The resulting weld is also airtight and waterproof.
Repeatable, reliable technology
HF welding uses high-frequency electromagnetic energy to generate heat, ensuring consistent results with each weld. The precision and control of this technology lead to repeatable outcomes, reducing the likelihood of errors or defects in the welding process.
Strong, durable and even welds
HF welding creates strong bonds between materials, resulting in durable and long-lasting welds. The process effectively fuses materials together, forming a seamless joint that can withstand considerable stress and strain. Moreover, HF welding produces even welds without inconsistencies, enhancing the structural integrity of the final product.
Air, Gas and Waterproof welds
The nature of HF welding ensures that the welds are airtight, gas-tight, and waterproof. This characteristic is particularly valuable in applications requiring a barrier against air, gases, or liquids, such as in the production of inflatable products, liquid tanks, or biogas covers.
Multi-Layer Welding Capability
HF welding can weld multiple layers of material simultaneously, providing versatility in manufacturing processes. This capability allows for the creation of complex products with layered components, enhancing design possibilities and production efficiency.
Environmentally Friendly
Compared to traditional welding methods that may involve adhesives, solvents, or other chemicals, HF welding is more environmentally friendly. It typically does not require additional consumables or generate harmful byproducts, contributing to sustainable manufacturing practices.
What Materials Can Be HF or RF welded?
The material most commonly used with HF-welding is PVC (polyvinyl chloride), also called vinyl and PU (Polyurethane). The material can be thick or thin, reinforced or coated. It can also be plain, coloured or patterned.
Who uses HF welding or RF welding?
Forsstrom’s customers manufacture a great variety of end products in these materials, such as truck and boat covers, tarps, tents, structures, pool liners, sunshades, billboards, inflatable products, liquid tanks, movie screens, waterbeds, stretch ceilings, valve membranes and oil booms.
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Services for REG high-frequency welding machines
REG is more than custom production of high-frequency welding machines; we round out our offer with a range of additional services making our customers’ lives easier.
REG’s primary activity consists of designing and manufacturing custom radio-frequency welding machines for all industrial fields. However, our customers also have more evolved and complex needs, to satisfy which specific services are needed: and in accordance with our approach of total customer satisfaction, REG offers such services daily.
Presampling
Certainty of a project’s success depends on running the right tests with the appropriate welding machines, to ensure final results and their compatibility with the required specifications. REG presamples finished pieces according to customer designs upon request, to give actual proof of the quality of the finished work.
Prototyping and electrode molds manufacture
High-frequency welding requires the use of high-precision welding electrode molds, if impeccable results are to be ensured; tolerances are minimal, and difference in performance may prove significant. REG offers to all customers the design and manufacture of all electrode molds required for their projects, including prototyping, to ensure a perfect final result and its exact match to required customer specifications.
Installation, setup, technical support
A radio-frequency welding machine’s perfect operation begins with correctly executed installation and setup, as only competent, specialized technicians can ensure. REG installs and sets up our welding machines all over the World, and grants tecnical support at all times for quick resolution of any kind of difficulty.
Personnel training
Fully realizing a high-frequency welding machine’s potential in complete safety requires trained and competent personnel with a complete knowledge of the welder’s functions and workings. REG directly trains personnel on the customer’s premises or on our own, both at first installation and in case new worker teams are hired.
