RTM Concept
31Pages

B. Matrasur Composites RTM Concept G. STANDARD RTM CONFIGURATION SPECIFICATIONS ■ Automatically-locking rotating mold carriages ■ Quick change of the mold ■ Gelcoat ventilation booths Venus-Gusmer H.I.S. (Hydraulic Injection System) ■ Resin and gelcoat heaters ■ Venus-Gusmer Gelcoat spraying machine ■ Supply station and thermoregulation ■ Vacuum regulation unit for mold closure, resin injection and degassing ■ Molds and resin tank thermoregulation unit ■ Pneumatic and electrical control panel Pre-set quantity display ■ Injectorfixed on the upper mold ■ Additional RTM Concept configuration

Matrasur Composites 1. Mold manipulation and pressing system 2. Rotating mold carrier 3. Thermo-regulated male mold 4. Thermo-regulated female mold 5. Advanced technology mold sealing technique 9. Quick change system for male mold 10. Pneumatic control cabiriet 11. Electrical control cabinet 12. Easy reach control unit of the pressing 15 Vacuum regulation panel 16 Low pressure injection and casting unit 19. Automatic injection gun head unit 20. Material monitoring system 21. Mixing, holdingand air bubble removal vessel 25. Low pressure Gelcoat spraying unit 27. Needle-less Gelcoat spray-gun...

The word composites reflects the notion of innovation and performance. However, the sector of composite material processing is primarily made up of small to medium-sized businesses that will rapidly be confronted with problems if they don't implement technological change. Businesses must comply with current air quality legislation and control staff exposure to styrene emissions with a concentration of 20 to 50 PPM. As a general rule, odor is perceived at 0.1 ppm, i.e., 0.42 mg per cubic meter. What is currently the best method to avoid styrene escaping from resins if not the use of closed...

With the many advantages of industrial RTM applications, it is surprising this method is only used by a handful of companies. The benefits can be applied to many different industries. Advantages include: ■ Significant styrene emission reduction in the work place ■ Styrene emission is eliminated during injection ■ Reduced handling of raw material ■ Optimum hygiene and safety ■ Depending on the item, 3 to 5 gelcoated parts per hour with only one operator • Superior surface quality ■ Smooth dual surfaces ■ Monolithic and sandwich construction ■ Accurate control of raw material ■ More...

Twenty processes are incorporated into the RTM Concept: 1. Semi-automation allows the operator to complete multi-tasking 2. Every component is provided in one self-contained unit 3. Low-pressure, internal mix gelcoat system using an air assist nozzle—produces a consistent spray pattern and lowers styrene emissions 4. Needle-less Pro gun—provides fewer moving parts and fewer adjustments 5. Low-pressure injection of filled or unfilled resins—controls emissions 6. Gun remains permanently in place on the mold, according to the type of part—this full automation maximizes the ability to create...

Matrasur Composites researches your company's specific production requirements. We also provide complete specifications for parts and equipment, including the ergonomics of the operator. Matrasur Composites frequently deals with companies with a limited amount of experience with low pressure injection. To support these companies, we provide a full spec- trum of expertise to ensure long-term success. The complete system design of the RTM Concept will ensure the upgrade of your current technology to the RTM technique, mold design, production of the prototype part, chemistry of materials and...

G. STANDARD RTM CONFIGURATION SPECIFICATIONS ■ This mold handling rig has electromechanically operated columns. These columns provide different lift heights depending upon the height of the mold. ■ The speed at which the upper mold is raised or lowered can be varied between O'/min and ■ The rig is designed to maintain a level mold as it is lowered. ■ The electromechanical equipment connecting the columns ensures that the level of the plate remains stable. ■ In the event of a malfunction, the machine will stop automatically due to a system of double half-shell nuts that instantly block each...

AUTOMATICALLY-LOCKING ROTATING MOLD CARRIAGES The two non-motorized carriages have frames made from heavy-duty rectangular hollow tubing. Grooved wheels ensure easy maneuverability under heavy loads. The carriage is designed to allow the operator to transport the two lower molds from the gelcoat booths to The carriage is automatically locked in place beneath the upper mold. This automatic locking mechanism is designed for easy mold change. The two carriages are also equipped with rollers for rapid mold removal. The Matrasur RTM Concept provides a maximum degree of flexibility within a...

(NJECTION/CASTING PROCESS The Venus-Gusmer H.I.S. (Hydraulic Injection System) meter/mix pump continuously meters and mixes resin and hardner. Resin and hardner pumps are designed for positive displace- ment to ensure a highly accurate metering ratio control. In the case of polyester resin, the catalyst amount may be set between 1/2-3% by volume. The catalyst pump supplies catalyst through a non-pressurized, gravity fed system. Accumulators prevent pressure hesitation during pump reversal to ensure smooth delivery of composite The slave-arm design provides linked metering for precision in...

RESIN AND GELCOAT HEATERS Resin heater - A remote controlled, high pressure, explosion proof resin heater is located adjacent to the point of injection. Because it is heat regulated, resin output will be consistent all year. This temperature control ensures that the viscosity of the mix remains constant and ensures accurate control of the gelling process. I A low resin viscocity allows for a higher reinforcement content. The digital display indicates to the operator the actual and desired temperature. Gelcoat heater-A remote controlled, high-pressure, explosion proof gelcoat heater is...

SUPPLY STATION AND THERMOREGULATION A100 or 200 gallon (400 or 800 liters) horizontal tank with blades allows the resin and fillers to be vacuum loaded. A more uniform mix is achieved because of the even distribution of fillers into the tank. Once gas and air bubbles are removed from the resin, mixing is com- pleted under vacuum. The tank is then pressurized to constantly supply the injection machine Following a prolonged stoppage, the blades, which brush against the sides of the tank, are slowly rotated, allowing the fillers to remain suspended. This "vacuum pressure" horizontal tank is...