How to control the thickness deviation and surface quality in epoxy board manufacturing?
Publish Time: 2025-02-26
As a high-performance composite material, epoxy board is widely used in electrical, electronic, aerospace and other fields. In its manufacturing process, controlling thickness deviation and surface quality is a key step to ensure product performance. This article will explore how to effectively control its thickness deviation and surface quality in the manufacturing process of epoxy board.1. Control of thickness deviationThe thickness deviation of epoxy board is mainly affected by raw materials, production process and equipment accuracy. In order to control the thickness deviation, it is first necessary to ensure that the specifications of the glass fiber cloth (substrate) are consistent, including thickness, density and fiber arrangement. During the production process, the coating amount of epoxy resin should be strictly controlled to ensure that the resin can evenly penetrate into the gaps of the glass fiber cloth. In addition, the temperature, pressure and time in the pressing process are key factors affecting the thickness deviation. By precisely controlling these factors, it can be ensured that the epoxy board forms a uniform thickness during the pressing process.To achieve this goal, manufacturers usually use advanced automated production equipment such as precision coating machines and high-pressure hot presses. These equipment can accurately control the coating amount and pressing conditions, thereby effectively reducing thickness deviation. At the same time, regular calibration of equipment and testing of products are also important measures to ensure thickness consistency.2. Control of surface qualityThe surface quality of epoxy board directly affects its appearance and performance. In order to obtain good surface quality, it is necessary to strictly control each link in the production process. First, the surface of the raw material should be clean and free of impurities to ensure that the resin can be evenly attached. Secondly, during the pressing process, defects such as bubbles and cracks should be avoided. This requires manufacturers to fully pre-treat the raw materials before pressing, such as degreasing, dust removal and drying.In addition, the design and manufacture of the mold are also key factors affecting the surface quality. The mold should have good demoulding and wear resistance to ensure that the epoxy board will not be damaged during the demoulding process. At the same time, the cleaning and maintenance of the mold are also important measures to maintain surface quality.In summary, controlling the thickness deviation and surface quality of epoxy board requires comprehensive consideration of multiple factors such as raw materials, production processes and equipment accuracy. By adopting advanced production equipment and processes, strictly controlling the quality of raw materials, and strengthening the design and maintenance of molds, the manufacturing quality of epoxy board can be effectively improved to meet the needs of various application fields.
