Technology

Process

GRP profiles and their production method for Pultrusion The pultrusion process is a continuous manufacturing method, as shown outlines and is used in the production of uniform section product using various resin types including polyester resin or epoxy estervinílica phenolic, reinforced with glass fibers, superior performance to the materials conventional and includes two stages in its manufacture.

Step 1: Impregnation of the fibers in a liquid resin into the heated mold, the shape of the desired section.
Step 2: Cure / solidification of the matrix resin into the mold, forming the desired geometry.

Characteristics of FRP

The STEP remains secure its strategy to develop, design and install solutions PFRV profiles, incorporating in their supplies and works the great advantages that these materials have relatively to steel and more traditional constructive solutions and briefly include:

• The GRP profiles are four times lighter than its equivalent steel and have a weight 30% less than aluminum.
• GRP have a high mechanical, electrical, thermal and corrosion resistance.
• Composite materials provide superior properties of each individual component because their properties are very high and can even exceed metals.
• By combining two or more different materials (components), we obtain specific mechanical properties such as strength and characteristics desired.

The most important conclusion to be drawn about the FRP is that these materials have specific properties higher than the said conventional materials as figure and table below:

• Linear elastic until breaking (no ductility).
• Orthotropic behavior.
• High longitudinal resistance (similar to steel).
• Lower modulus of elasticity than steel.
• Low density (less than 4 times that of steel).