What Is a Laminate Saw?

Laminate is one of laminates. Laminated products are made of two or more layers of resin-impregnated fibers or fabrics that are laminated and combined by hot pressing. Laminated products can be processed into a variety of insulation and structural parts and are widely used in motors, transformers, high and low voltage electrical appliances, electrical instruments and electronic equipment. Laminates can be plates, tubes, rods, or other shapes.

With the development of the electrical industry, high insulation. High-strength, high-temperature-resistant and adaptable lamination

The performance of the laminate depends on the substrate and adhesive and the molding process. According to its composition, characteristics and

The quality problem of the laminate is a comprehensive reflection of the quality problems of the resin, gluing and pressing processes. Although pressing is the last key step in the manufacture of laminates, the quality of the semi-finished products produced in the previous steps will directly affect the quality of the laminates. Therefore, a comprehensive analysis of the quality problems of the laminate must be carried out in order to find the exact cause, and effective measures should be taken to solve it in time to improve the quality of the laminate.

(1) The phenomenon of surface pitting tends to occur easily in thin sheets, mainly adhesive tape, especially the surface material contains a small amount of glue, a low soluble resin content, and poor resin fluidity. The second is uneven pressure during pressing. In some cases, the preheating time is too long and the pressure is low. Therefore, when preparing a thin sheet, special attention must be paid to the soluble resin content of the adhesive tape, and a good surface material is used. It is best to press the thin plate and the thick plate together to increase the elasticity of the blank and make the heat and pressure uniform. For example, due to the limitation of product specifications, only thin sheet tasks need to be thickened and replaced frequently. The preheating time should not be too long and the pressure must be kept up. In addition, the temperature of the hot plate should not be too high during glue dispensing.

(2) The surface is uneven and corrugated. This phenomenon often occurs when the resin content is large and the solubility is small.

(1) It should be kept away from light, otherwise, the light will cause the product color to change and may cause the board to warp.

(2) It should not be stored in warehouses with excessively high temperature such as over 40 degrees Celsius in humid or corrosive gas, because this will cause the performance of the board to decrease, warp and discolor.

(3) It should be laid flat to prevent warping.

(4) Pay attention to directional characteristics. Laminated products have two directions: vertical and horizontal. In general, the vertical direction is superior to the horizontal direction (higher strength warpage, small dimensional change, etc.) In particular, square boards should be stored in the same direction (note the direction signs of the manufacturer) ^[2] .