The basic components of glass fiber reinforcement production equipment include yarn frame, guide plate, resin impregnation tank, preform mold, winding device, scraper, heating and curing device, cooling section, traction device, and cutting device.

Not only can GFRP anchor rods be produced for rock, soil, and coal mine support, with a diameter between 16-32mm, but they can also be used to produce GFRP bars with a diameter of 8-36mm. There is a certain difference between the two, which is reflected in the higher thread accuracy requirements of anchor rods to facilitate the combination of anchor rods and nuts. In addition, coal mine support requires flame retardancy and anti-static properties, so flame retardants need to be added to the resin.

Fiberglass rebar in various shapes

Reinforcement steel is widely used in reinforced concrete structures, as it is an elastic-plastic material with a yield point and high fracture elongation, exhibiting good bending performance. In recent years, GFRP reinforcement has successfully replaced traditional steel bars with its high axial tensile strength and low shear strength, as well as its non sparking cutting characteristics, and has been widely used in shield tunnel head retaining pile structures in subway engineering. However, due to the performance limitations of GFRP reinforcement products themselves, they cannot be bent, welded, and other processes like traditional steel bars after forming, which leads to their inability to be applied in irregular structures in civil engineering (non linear, such as folded end caps, square reinforcement for retaining piles, circular reinforcement, etc.), greatly limiting their scope of use. In response to this issue, by changing the curing and molding process of GFRP bars, various products with irregular GFRP bars have been successfully developed, and customized GFRP bars of various shapes and specifications can be made according to the specific requirements of customers. This has received unanimous praise from customers and greatly expanded the product line of GFRP bars.