Ultrasonic Filter Welding
Ultrasonic welding: in the ultrasonic industry, filtration is the treatment of materials used to create objects filtrate air, liquids or dust.
One of the applications in which ultrasonic technology is most commonly efficient is the sewing of filter fabrics finely hatched made of polyamide and with filtration degree at a micrometric level, normally used in the biomedical field.
Ultrasonic technology in the filtration sector
Normally, ultrasonics are used on pleated filters, which, in the majority of situations are made of thermoplastic materials like polypropylene or with silicon-free treatments, in order to create tubular filters of various dimensions, according to the use.
Sonic Italia offers automatic, semi-automatic or manual ultrasonic welding systems for the filters’ production.
Systems can integrate rotative solutions (electric rotary tables) or linear ones (with brushless motors) both electronically controlled.
The ultrasonic applications developed by Sonic Italia can be used in clean rooms with or without soundproofing system.
Applying the ultrasonic technology it is possible to obtain repeatability, quality and strength.
These factors are constant during the ultrasonic welding process.
Furthermore, during the step by step ultrasonic welding process, the materials are not subjected to stress due to the plastification of the welded areas thanks to the extremely short processing times .
The continuous welding process, instead, grants a homogeneous and linear welding along the entire line, while the speed of the process is determined by the thickness of the fabric and by the surface of the welding area.
The energy consumption is extremely low in both welding processes.
Ultrasonic applications in the filtration industry
With ultrasonic technology it is possible to weld:
- Single/multi-layered pleated filters;
- Bag filters;
- Plastic ring on a tube filter;
- Air-oil filters ;
- Filtering nets/fabrics;
- Outer plastic protection of oil filters;