Our Technologies

Our manufacturing company uses various technologies and methods for molding products from composite materials. Knowing and applying them, we can produce parts of any complexity and the required quality.

Shaping is a manufacturing process in which the components of the product: the reinforcing substance and the matrix are combined, taking on a given shape. For thermoset polymer matrix materials, the molding process consists of a chemical curing reaction. For thermoplastic polymer matrices, the molding process consists of solidification from the molten state.

Hand or Contact Molding

Hand or contact molding, as the most common and cheapest method of creating a laminate, has a number of serious disadvantages:

• A large amount of resin in the product, which leads to its fragility
• Difficulty in achieving ideal proportions of matrix and reinforcing agent
• Irregularities in laminate thickness and air traps inside

All this leads to the fact that the product becomes fragile, fragile, heavy, unable to withstand mechanical stress. Air traps inside the laminate eventually begin to destroy it from the inside. More advanced molding technologies eliminate some or all of the shortcomings of hand molding, here are some of them.

Vacuum Forming

This process uses an open tooling in which the components of the composite material are placed. From above, the equipment is closed with a polymer film (vacuum bag) or a silicone membrane. Then a vacuum is applied. The process can take place at room or elevated temperature and at atmospheric pressure. Variations of this technology use increased air or steam pressure from the outside of the film (membrane).

Vacuum Infusion (Cacuum Impregnation)

The vacuum infusion process is a technique that uses the force of vacuum pressure to inject resin into a laminate. The materials of the future composite are laid out in a dry form in a tooling, then a vacuum is applied until the resin is introduced. Once the vacuum pressure is reached, the resin is sucked into the laminate through special tubes. This process uses a set of auxiliary materials and tools.

Autoclave

The process uses tooling and a membrane or polymer film. Materials are placed in a tooling, as a rule, impregnated fibers, prepreg are used. Resin film and dry reinforcing materials are sometimes used. After installing the membrane, a vacuum is applied to the tooling. The structure is placed in an autoclave, where it is subjected to pressure and temperature.

RTM (Resin transfer molding) Closed Mold Injection

RTM is a production method for medium series products. In this process, binders are injected into a closed mold already containing dry reinforcing material. Products molded by the RTM method have two smooth sides and precisely maintained shape and size. Variations of the technology use vacuum or pressure to inject the resin. The process can be carried out at room or elevated temperature.

Other types such as pultrusion, winding, SMC (Sheet Molding Compound), BMC (Bulk Molding Compound), open molding (contact molding and spray molding) will not be considered in detail as specific.