Coated Abrasives substrate type and production deal

Belt as a substrate composed of three elements, one is abrasive and adhesive belt carrier, while many aspects of belt characteristic also reflected by the substrate, such as a flexible belt is transferred from the substrate from, sizes also depends on the size of the substrate, the joint is mainly in the form of the substrate is. Visible substrate belt will directly affect the processing characteristics and life. The process again from the watch belt, the transmitted power required substrate to withstand  abrasive sanding belt the mechanical forces in the processing of high temperature and neither stretching nor broken. This requires not only a substrate having a certain tensile strength, shear strength, burst strength, thermal stability, and have a certain toughness, dimensional accuracy of the operation to reduce belt fatigue damage, shock and vibration, and also Because the quality of the substrate will be reflected through the abrasive and the workpiece surface up. Different substrates, woven substrates of different manufacturing process will determine the manner and nature of the substrate and the Sanding Sheets  different applications, the research and development of the coated abrasive substrate is also an extremely important aspect. Application of a substrate types and
Common base with the following categories: paper, film, cloth, vulcanized fiber, polyester fiber and composite substrates and so on. Each substrate and in accordance with the required flexibility, strength and material removal can be divided into different intensity levels.
1 base paper substrate and film
Paper used as the substrate has a long history, low cost, and its smooth surface, low surface roughness  material, but poor strength and toughness, load capacity is better cloth material. Film is used as the base country also rare, existing applications and the development direction of high-precision grinding as one in a foreign country (such as the UK), but it is subject to the same paper and light load roughing pass power, to withstand high pressure restrictions commonly used in light-load manual polishing and wood processing.
With advances in manufacturing technology, it has been able to produce high-intensity heavy-duty paper, heavy paper production process by adding a polymer to further enhance its strength. A conventional paper substrate sheet is laminated to three or four or more layers together to obtain the desired strength, the strength of the paper only reload one or more further layers are obtained, and Thermal sensitivity is small. Paper substrate in terms of length or width are relatively easy to obtain, and therefore more and more popular paper substrate. The original trial of a ring of paper only for low-load belt grinding or polishing, but since the introduction of two coated abrasive sand production line can produce different specifications and uses existing paper-based belt for selection, and the intensity higher, but the lack of development of heavy-duty paper. However, heavy paper substrate is an important direction of development. To improve the strength of a paper substrate and a flexible wet grinding often added or coated with the rubber, resin, or other materials in the paper base.
2 cloth material made from cotton or synthetic fibers made to increase the strength of the matrix polymer impregnated. Cotton cloth divided into two categories: one is a better light load flexible fabric - fine twill (J), the other is a heavy-duty fabric - denim fabric (X). Clearly, denim strength, poor flexibility for modifications on the machine grinding, but also for the disc grinder or belt grinder roughing. When the surface of the complex and just keep its shape, use of non-woven substrate is more suitable, but lower removal rate. Cloth material also often divided abrasive paper sheet  into four models for selection: J type, X-, Y-, S-type. J-type fabric is lightly loaded, soft, coarse molding for polishing: powerful X-type cloth, durable, suitable for heavy duty grinding: Y-type fabric weight of 30% compared to X-type, the overloaded Bucky not only tensile strength, but also to pierce, cracked, wrinkled or split stack are more resistant. It turns out the wire, wide belt grinding plate is very suitable, S-type cotton cloth, used a combination of wide belt machine. Cloth material widest range of applications, adding polymers or fiber cotton cloth material of various coolants have better resistance. In high-speed belt grinding, after a reasonable choice of abrasive must match the base of high-intensity, then often considered cloth material. 3 vulcanized fiber base
This substrate is laminated by a vulcanized fibers. Vulcanized fiber is broken cotton as raw material and then chemically treated cotton fibers to make gelled together, which is characterized by hard, powerful, good toughness, but still retains its soft music performance and is not sensitive to the coolant. The several layers of paper overlap gelled together and ground smooth vulcanized fiber substrate produced and made available for the production of coated abrasive grinding can be used to roll grinder.