+90 224 361 19 40

info@bursamak.com

CSS3 dropdown menu

Composite Curing Press

The fastest and most economical way to produce composite parts is to shape the resin-impregnated PrePreg composite sheet under heat and pressure. With the standard sliding table and extractor mechanism in the presses we produce, we make production much faster and reduce labor costs. We reduce production costs with the heating technology and heat control system we developed. We produce machines that meet today's needs with features such as production monitoring, energy monitoring, and server connection.

Today, many composite materials, especially Carbon Fiber, are produced as PrePreg sheets ready for curing. The production of more and more types of composite materials ready for pressing is increasing. This also makes the production of presses under heat and pressure widespread in composite production. We also offer technological solutions with the machines we have developed in this field. With the features such as automatic lubrication, heater monitoring, relay monitoring offered by our machines, we ensure that they provide service without the need for maintenance and service.

Our machines produce high power continuously with their strong mechanical structure and cooled hydraulic power unit. In addition, active ventilation, active and passive safety measures provide the highest level of protection for operator health and safety. Our machines protect their electronic components from possible electrical problems by constantly checking voltage highs-lows and phase directions.

With the mold heating feature in our machines, high energy savings and rapid heating can be achieved by heating from the mold in addition to the heating from the table if desired. With the mold recording feature of our composite presses, you can save 1000 molds with all their parameters and call the parameters of the desired mold with a single touch whenever you want.

Composite Curing Press

MODEL	RP403	RP406	RP410	RP610	RP615	RP620	RP915	RP920	RP925
Table Dimension	400 X 400			600 X 500			900 X 600
Pressing Force (250 Bar)	40 Tons	80 Tons	125 Tons	125 Tons	200 Tons	250 Tons	200 Tons	250 Tons	300 Tons
Pressing Force (200 Bar)	30 Tons	60 Tons	100 Tons	100 Tons	150 Tons	200 Tons	150 Tons	200 Tons	250 Tons
Engine Power (kW)	3	5,5	7,5	7,5	11	15	11	15	18,5
Table Heating Power (kW)	15	15	15	25	25	25	35	35	35
Number of Cylinders	1	1	1	1	2	2	2	2	3
Cylinder Diameter	150	200	250	250	230	250	230	250	230
Stroke	200 mm			250 mm			300 mm
Maximum Clearance	250 mm.			300 mm.			350 mm.
Minimum Clearance	50 mm.			50 mm.			50 mm.
Table Movement	With hydraulic piston.
Closing Speed	10 mm/sn.
Auto Start	You can program the machine to work automatically and heat the mold by setting the days and hours you want.
Smart Resistance Technology	Automatically detects resistance breakdown and SSR relay breakdown thanks to multi-point temperature control.
Temperature Control	Heat control is provided with PID and Direct control options.
Safety Barrier	Available.
Control Unit	All functions and measurements are controlled by PLC.
Memory	1000 Molds can be saved with all their parameters.
Control Panel	7" Touch panel
Hydraulic Oil Cooling	Temperature controlled, separate pump prevents oil temperature from increasing.
Ventilation	Harmful gases and excess heat are removed from the operator with temperature-controlled automatic fans.
Heating from the mold	If desired, a heater can be added to the mold to shorten the heating time and save energy.
Automatic Lubrication	The machine automatically lubricates its columns and sliding table, eliminating the need for daily maintenance.
Middle and Side Scraper	There are hydraulic middle and side pushers. You can easily remove the products from the mold by moving the middle plate of the mold separately.
Shift Tracking	Records the production amount of 3 monthly shifts and stores it in its non-erasable memory.
Online Connection	It transfers data instantly to the server computer. It can be controlled remotely.
Consumption Tracking	It tracks the energy consumption amount of 3 monthly shifts. You can easily see the unit energy per product and the energy consumption of the machine.

Prepreg Composite Boards

PrePreg is a combination of a matrix (or resin) and fiber reinforcement. In other words, prepreg is a general term for fibers that have been impregnated with resin into a reinforcement fabric and are ready for use. The component is ready for use in the manufacturing process. Prepregs are fiber-reinforced resins that cure under heat and pressure to create extremely strong yet lightweight components.

Advantages of Using Prepreg:

1. Maximum power specifications:

It is not easy to achieve a 50% resin structure in the normal hand series. This situation shows that the finished laminate weight is 50% resin and 50% fabric structure. Classic hand laminates result in a high resin content even in the presence of a vacuum bag. The high resin content reduces the general properties and increases the brittleness. In addition, prepregs generally contain around 35% resin content. This is an ideal feature for maximum hardening.

2. Part regularity:

Parts produced with prepregs are structurally more regular than other methods. This reduces time loss. In addition, each part produced is produced with the same thickness, the same features and similar to each other.

3. Less mess and less waste:

The amount of resin that will emerge and flow during the composite preparation and curing process is higher in the hand lay-up method than in prepregs.

4. Less curing time:

Once the heat cure process is complete, the part is ready for service. You do not have to wait the standard 48 hours to ensure a full cure as with typical hand lamination.

5. Better aesthetic appearance:

Mold preparation and mold release are still required and will directly affect the aesthetic appearance of the part, such as a hand lay-up laminate. Parts made with prepregs can have a better appearance. However, glass prepregs virtually eliminate air bubbles and a smooth, glossy surface is more easily achieved.

Production methods of thermoplastic matrix composites (PrePreg)

Extrusion coating method,

Film coating/stacking method,

Powder coating method,

Solution coating method.

Types of Fibers Used in PrePreg Composite Materials

Glass Fiber

Glass fibers are widely used in composite materials. Glass fibers are amorphous polymers, reinforcement materials with high chemical resistance, long life, high electrical insulation, high density, flexibility, lightness, workability, high tensile strength, low heat transfer coefficient and low cost.

Glass fibers are produced with the desired properties according to the materials used in their production. In order to produce high quality fibers, high purity materials must be melted homogeneously, drawn at high temperatures and then a protective coating must be applied. Glass fiber types;

• A (Alkali) Glass: It is the most commonly used glass type. Since it contains high levels of alkali, it has poor electrical insulation properties. It has high chemical resistance. It is used in window glass and bottle production. It is rarely used in composite materials.

• C (Corrosion) Glass: Shows high chemical resistance. Used in the production of storage tanks.

• E (Electrical) Glass: Due to its low alkaline properties, its electrical insulation is much better than other glass types. It is the most common type of glass fiber used as a reinforcement component in polymer matrix composite materials. The reason for using E-glass fibers in composite materials is due to their high tensile strength, heat, fire, chemical and moisture resistance properties. E-glass is known as economical glass.

• S (Strength) Glass: It has a tensile strength value that is 33% higher than E glass. In addition to being a high strength glass, it is also highly resistant to fatigue at high temperatures. Due to these features, it is used in industries that require high mechanical properties and thermal resistance, such as space and aviation. S-glass fiber diameters are small (half of E glass), so the number of fibers is high. Since the number of fibers is high, it has a higher bonding feature.

Carbon Fiber

Carbon is a nonmetal that forms the main element of coal and organic compounds. The density value of carbon fiber varies between 1.6-2.2 g/cm3 depending on the type of raw material used in carbon fiber production and the processing temperature. Carbon fibers have positive properties such as low density, high strength, toughness, high hardness, high fatigue resistance and negative thermal expansion coefficient, but also negative properties such as high cost, low impact resistance and high electrical conductivity. Its low density has made it possible to produce lightweight and high strength materials. For this reason, it is used in sectors where cost can be ignored such as space, aviation, automotive, medical and marine.

Aramid Fiber

Aramid fiber is made up of aromatic polyamide chemical. Aramid fiber has advantageous properties such as low density, high tensile strength, high abrasion resistance, high chemical resistance, high tensile strength and high impact resistance. The compressive strength of aramid fiber is 20% of the tensile strength. For this reason, it is not recommended for use in structural applications that include high compressive loads in aramid-reinforced composite structures. Some aramid fiber types degrade when exposed to sunlight for a long time. Due to this feature, the place of use of aramid fiber is very important. The appropriate material should be selected for the area of use. Aramid fiber is used in ballistic, protective clothing, marine, aircraft, automotive, electromagnetic cables and friction linings in clutches.

BURSAMAK MACHINE LTD
Yaylacık mh. 44. sk. No:13 16280 Nilüfer / BURSA /TURKEY
+90 224 3611940-41 info@bursamak.com