MTI® IS THE ABBREVIATION FOR MEMBRANE TUBE INFUSION AND DESCRIBES A SUCTION HOSE SHEATHED WITH MEMBRANE FOR VACUUM INFUSION
The MTI® hose is an air-permeable and resin-blocking line for the evacuation of air. It impresses with its ease of use and a considerable simplification of the infusion process for the user. The MTI® hose can be used for any part, size and any degree of complexity, from small trim parts up to the rotor blade of a wind turbine. The MTI® hose significantly increases process safety. Parts produced in the MTI® process feature a superior laminate quality. By utilising the MTI® hose, even inexperienced users will succeed in the production of complex parts with surfaces that will be free of porosity and pinholes as well as feature fibre volume contents of > 50%.
The MTI® infusion process is often a cost-effective alternative to the production of components in an autoclave without having to sacrifice part quality and often producing better surface quality. Furthermore, vacuum pressing can be replaced by manual lamination, often achieving significantly higher parts quality as well as a cost reduction without additional effort.
THE FIVE MOST IMPORTANT
BENEFITS OF THE MTI® HOSE:
1) Low investment costs
2) Higher process safety
3) High portion in fibre volume ratio
4) Minimising the consumption of resin
5) Freely designable route of the resin
of the manufacturing process
HOW DOES THE MTI HOSE WORK?
MTI VALVE AUSTRALIA
WITH THE MEMBRANE TUBE INFUSION PROCESS (MTI®) DD-COMPOUND HAS DEVELOPED AN INNOVATION FOR VACUUM INFUSION. THE NEW, UNIQUE MTI® VALVE!
The MTI® valve is used in the resin line and controls the resin infusion by means of pressure. During the infusion it represents for the resin infusion a counter-pressure to the under pressure in the part. If this counter-pressure is too big, the valve closes. The resin infusion stops. No more resin enters the part. The valve is adjusted that the counter-pressure becomes too great for the resin at precisely the point when the necessary under pressure in the part for the fibres to reach an optimum height to be covered in resin is achieved – thus also achieving an optimum fibre volume ratio. Supervising the resin supply is not necessary any more, provided that enough resin exists. The MTI® valve provides for the steady infusion of the resin in the part. The fibers are evenly covered with resin. It provides for the highest quality of the parts with reproducible results. Besides, it is safe and simply in the use.
At the beginning of the vacuum infusion a vacuum is placed on the part. During the subsequent infusion the pressure on the part changes compared to the surrounding pressure in line with the quantity of resin infused. By these means, the individual fibres of the textile or fabric are raised during the infusion and covered with resin. The closer the under pressure on the part approaches the surrounding pressure, the higher the fibres are raised. This allows them to be covered with even more resin. However, the optimum fibre volume ratio is achieved prior to the highest possible erection of the fibres and the associated quantity of infused resin.
DD COMPOUND SQUEEZE
Squeezee® from DD-Compound are the solution for adjusting the resin flow and disconnecting resin lines in the vacuum infusion. The tube clips are easy to use and allow exact control of the resin flow. They allow disconnecting the resin line without much force. Squeezee® is suitable for different kinds of tubes with an outer diameter up to 15mm.
MTI hose is available in various lengths sent by Express Post or Courier within Australia. For orders outside mainland Australia please use the inquiry form. For orders of multiple products please message us for combined shipping discounts.