Fiberglass wrapped rovings play a crucial role in the industrial field, with many magical aspects waiting for us to explore. Now, let's unveil its mysterious veil together.

Basic concept of glass fiber wrapped roving

Fiberglass wrapped rovings are a type of fiber material composed of many continuous fiberglass filaments bundled together. These glass fiber raw fibers are usually made from mineral materials such as pyrophyllite, quartz sand, limestone, etc., through a series of complex processes such as high-temperature melting and wire drawing. The diameter of its single filament is generally between 5-24 microns, and different diameters can affect the performance and use of the yarn.

From the appearance, glass fiber wrapped yarn presents a shape similar to silk thread, but it is more tough and durable than ordinary silk thread. It has excellent properties such as high strength, high modulus, corrosion resistance, and electrical insulation, which have made it widely used in many fields.

For example, in the chemical industry, due to its corrosion resistance, glass fiber wrapped rovings are used to manufacture various chemical pipelines and containers. Like some large acid and alkali storage tanks, tanks made of glass fiber wrapped rovings can effectively resist acid and alkali corrosion, extend the service life of the tank, and reduce maintenance costs.

Production process of glass fiber wrapped roving

The production process of glass fiber wrapped rovings mainly includes several key steps such as raw material preparation, melt drawing, wetting agent application, and bundle forming.

The first step is raw material preparation, which requires precise proportioning of various mineral raw materials according to a certain ratio. The quality and proportion of these raw materials directly affect the performance of glass fibers. Then put the prepared raw materials into a high-temperature furnace and melt them into glass liquid at a high temperature of 1300-1600 ℃.

The next step is the melt drawing process, where the molten glass liquid flows out through the small holes on the leakage plate, forming continuous glass fiber strands. The number and size of holes in the leakage plate determine the quantity and diameter of the raw fibers. The drawing speed is also an important process parameter, which affects the strength and uniformity of the raw wire.

During the drawing process, it is necessary to apply a wetting agent to the glass fiber precursor. The function of the wetting agent is to protect the surface of the fibers, improve the cohesiveness between fibers, and enhance compatibility with the resin. Different application scenarios require the use of different types of wetting agents.

Finally, multiple glass fiber filaments coated with wetting agents are bundled together to form glass fiber wrapped rovings. The bundling method and tension control can also affect the quality of the yarn.

Taking a certain glass fiber production enterprise as an example, they have continuously optimized their production process and adopted advanced automation equipment to improve the production efficiency and quality of glass fiber wrapped rovings. The roving produced by it has strong competitiveness in the market and is widely used in high-end fields such as wind turbine blades and automotive components.