Basalt fiber cloth
Basalt fiber cloth is divided into basalt fiber roving and basalt fiber fine gauze. Untwisted rovings are bundled from parallel strands or parallel monofilaments. The monofilament diameter of basalt fibers used in the production of rovings varies from 3 to 23 μm. Basalt fiber fine gauze refers to various fabrics woven with basalt fiber yarns less than 150TEX.
Basalt fiber roving fabric
Basalt fiber roving
Basalt fiber roving is made up of parallel strands or parallel monofilaments. The monofilament diameter of basalt fibers used in the production of rovings varies from 3 to 23 μm. The number of rovings ranges from 150 to 9600 (tex). Untwisted rovings can be directly used in some composite material forming methods, such as winding and pultrusion processes, because of their uniform tension, they can also be woven into untwisted rovings and fabrics. In some applications, untwisted rovings are further Chopped.
An important use of basalt fiber roving is to weave plaid or unidirectional roving fabrics of various thicknesses, which are mostly used in the hand lay-up FRP forming process.
Requirements for roving for strength
- Good wear resistance;
- Good banding;
- Twistless roving for weaving needs to be forced to dry before weaving;
- The untwisted roving has uniform tension, and the drape should meet certain standards;
- The untwisted roving has good disintegration property;
- The roving has good penetration.
Basalt fiber gingham
Basalt fiber gingham is a roving plain weave fabric, which is an important base material for hand lay-up FRP. The strength of the gingham fabric is mainly in the warp and weft directions of the fabric. For occasions requiring high warp or weft strength, it can also be woven into twill roving and unidirectional roving under special circumstances. Twistless rovings are arranged in many directions and can be cut into narrow strips and ribbons.
The fabric is uniform, the edge of the cloth is straight, the cloth surface is flat and mat-like, and there is no stain, fluff, creases, wrinkles, etc.;
Warp and weft density, area weight, fabric width, and roll length all meet the standards;
It is wound on a firm paper core, and the winding is neat;
Rapid and good resin permeability;
The dry and wet mechanical strength of the laminate made of the fabric shall meet the requirements.
Basalt fiber non-woven fabric felt
- Chopped strand mat
- Continuous strand mat
- Surface felt
- Needle felt
- Stitched felt
Basalt fiber fine gauze
Basalt fiber fine gauze refers to various fabrics woven with basalt fiber yarns less than 150TEX. Mainly used in the production of various electrical insulating laminates, printed circuit boards, various vehicle bodies, storage tanks, boats, molds, etc. The properties of fabrics are determined by fiber properties, weft and warp density, yarn structure, and texture. The warp and weft density is determined by the yarn structure and texture. The warp and weft density plus the yarn structure determines the physical properties of the fabric, such as weight, thickness, and breaking strength. There are five basic weaves: plain, twill, satin, rib, and mat. Basalt fiber webbing is divided into selvage (smooth) and non-woven (fluid), the main weaving method is plain weave. It is used to manufacture electrical equipment parts with high strength and good dielectric properties.
Basalt fiber unidirectional fabric
Unidirectional fabrics are characterized by high strength in the direction of warp 0 degrees or weft 90 degrees. The warp unidirectional fabric is a four-warp broken satin or long-axis satin fabric woven by thick warp yarns and fine weft yarns.
Basalt fiber three-dimensional fabric
Compared with the flat fabric, the three-dimensional fabric has developed from one-dimensional two-dimensional to three-dimensional, so that the composite material with this reinforcement has good integrity and profiling, and greatly improves the interlaminar shear of the composite material. Shear strength and damage tolerance. It is developed for the special needs of aerospace, aviation, weapons, ships, and other departments, and its application has been extended to automobiles, sports equipment, medical equipment, and other departments. There are five main categories: woven three-dimensional fabrics, knitted three-dimensional fabrics, orthogonal and non-orthogonal non-woven three-dimensional fabrics, three-dimensional woven fabrics, and other forms of three-dimensional fabrics. The shapes of three-dimensional fabrics include blocks, columns, tubular, hollow truncated cones, and variable thickness profiled sections.
Basalt fiber shaped fabric
The shape of the special-shaped fabric is very similar to the shape of the product to be reinforced, and it must be woven on a special loom. Symmetrically shaped special-shaped fabrics include: round covers, cones, caps, dumbbell-shaped fabrics, etc., and can also be made into asymmetric shapes such as boxes and hulls.
Basalt Fiber Slotted Fabric
The groove core fabric is a fabric composed of two layers of parallel fabrics connected by longitudinal vertical bars, and its cross-sectional shape can be triangular or rectangular.
Basalt fiber stitched fabric
Stitched fabric, also known as knitted felt or woven felt, is not only different from ordinary fabrics but also different from felts in the usual sense. The most typical stitched fabric is a layer of warp yarns and a layer of weft yarns overlapped, and the warp yarns and weft yarns are woven together to form a fabric by stitching.
- Stitched fabrics can increase the ultimate tensile strength, delamination strength under tension, and flexural strength of FRP laminates;
- Reduce the weight of FRP products;
- The smooth surface makes the surface of FRP products smooth;
- Simplify hand lay-up operations and improve labor productivity. This reinforcing material can replace continuous strand mats in pultrusion FRP and RTM, and can also replace roving in centrifugal FRP tube production.
Combined basalt fiber fabric reinforcement
That is to say, the composite cloth reinforcement materials that combine chopped strand mats, continuous strand mats, roving fabrics, rovings, etc. in a certain order, generally include the following:
- Chopped strand mat + roving fabric
- Chopped strand mat + untwisted roving + chopped strand mat
- Chopped strand mat + continuous strand mat + chopped strand mat
- Chopped original ratio felt + random roving
- Chopped strand mat or cloth + unidirectional fiber
- Chopped strand + surface felt
- Basalt cloth + unidirectional roving or thin rod + basalt cloth