The molding process refers to a process in which a certain amount of SMC sheet/BMC pellets is put into the preheated mold cavity, and after the mold is closed, the molding material melts and flows under the action of high temperature and high pressure, fills the cavity, and solidifies and sets the shape. method. Mainly used for the molding and processing of thermosetting plastics, rubber products, and composite materials.
The molding process refers to a process in which a certain amount of SMC sheet/BMC pellets is put into the preheated mold cavity, and after the mold is closed, the molding material melts and flows under the action of high temperature and high pressure, fills the cavity, and solidifies and sets the shape. method. Mainly used for the molding and processing of thermosetting plastics, rubber products, and composite materials.
Advantages of molded products
1. The molding cycle is short, the production efficiency is high, it is suitable for mass production, and the cost is relatively low.
2. It can produce large-scale products and products with complex structures.
3. Molded products have high dimensional accuracy, smooth surface, good appearance and dimensional repeatability.
4. The processing is automated and mechanized, reducing labor intensity and operating difficulty.
Classification of main compression molding processes
1. The fiber material molding method is a method of putting premixed or pre-impregnated fibrous molding material into a metal mold, and forming a composite material product at a certain temperature and pressure.
2. Shredded cloth molding method cuts the leftover material of glass fiber cloth or other fabrics such as linen cloth, organic fiber cloth, asbestos cloth or cotton cloth soaked with resin glue into pieces, and then heats and presses in a metal mold to form a composite Material products.
3. The fabric molding method impregnates a two-dimensional or three-dimensional fabric woven into a desired shape with resin glue, and then puts it into a metal mold to heat and press to form a composite product.
4. Laminate molding method: Cut glass fiber cloth or other fabric pre-impregnated with resin glue into the required shape, and then heat or press in a metal mold to form a composite product.
5. Winding and molding method: The continuous fiber or cloth (tape) pre-impregnated with resin glue is wound on the core mold through a special winding machine to provide a certain tension and temperature, and then put into the mold for heating and pressing to form a composite Material products.
6. Sheet plastic (SMC) molding method cuts the SMC sheet according to the product size, shape, thickness, etc., and then stacks the multi-layersheet and puts it into a metal mold to heat and press the product.
7. The preformed blank molding method firstly puts the preformed blanks with similar shapes and sizes of the chopped fibers into a metal mold, and then injects the prepared binder (resin mixture) into the mold. Molding under high temperature and pressure.
PHP specializes in manufacturing composite servo hydraulic presses, and has a good understanding of the molding process of SMC, GMT, and LFT-D. If you have any related questions, please contact us, email: cindy@wuxipd.com or phone: 0510 83394311.
