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12/04/19 | Adhesives, Sealing Systems, Electro Casting Resins, Dispensing Systems & Robots

Sealing, Bonding. Casting. At the Speed of Light.

RAMPF Polymer Solutions and RAMPF Production Systems have further developed the use of microwave technology in applying foam gaskets, electro casting resins, and adhesives – with resounding success!

When applying reactive resin systems using conventional methods, components A and B are mixed in the mixing head of the dispensing system. This activates the resin system, which is then immediately applied to the component, where it finally cures.

However, adding heat to the process can accelerate the reaction of the components. This is achieved using microwave technology.

Attaching an applicator below the mixing head of the dispensing system makes it possible to further heat the reactive mixture with the help of microwaves, speeding up the system and thus ensuring the foam or casting resin cures faster.The key advantages of this are significantly shorter cycle times with reduced outlay required for cleaning the mixing head.


Further benefits of RAKU® Microwave Curing include:

Faster component handling

Microwave activation cures the two-component reactive resin about four times faster. The component can thus be loaded or passed to the next processing step much faster.

Greater machine availability

In a two-component low-pressure machine, the material is mixed and activated in a single step. The patented* RAMPF microwave technology is the first to separate the mixing and activation process. As a result, there is significantly less soiling in the mixing head. There are fewer rinsing procedures, which increases both the service life of the mixing head and machine availability.

Greater cost-efficiency

The microwave technology activates the material, making it possible to shorten curing sections considerably. In the case of an oven-curing system, it may even be possible to cut out the curing oven entirely, thus reducing users’ investments in energy and plants. The plant’s footprint is also significantly smaller as a result.


Heating material using microwave technology

Microwaves are electromagnetic waves with a frequency of 300 MHz - 300 GHz. They are used in a range of different applications, such as radar technology, wireless communication systems, and for heating materials, the best-known form of this being microwave ovens. Particularly when it comes to heating materials, using microwaves has a number of advantages. Unlike with conventional heating, microwaves heat materials from the inside out, providing a faster, more even heat. 
Heating material using microwaves is a form of dielectric heating, which occurs in an alternating field. However, for a material to heat up in an alternating electrical field, it must exhibit an asymmetrical molecular structure. This is because molecules with an asymmetrical structure have electrical dipoles, which always turn in the direction of the alternating electrical field. This creates rotational oscillations that generate intermolecular friction and thus heat energy.

Use the contact form to arrange an appointment with our experts to find out more about how innovative microwave technology is being used at RAMPF Polymer Solutions and RAMPF Production Systems!

Download flyer of Microwave Technology from RAMPF

Contact us for more information about microwave technology!