Raw Material Proportioning
The raw materials for electronic ceramics typically include alumina, silicon nitride, aluminum nitride, and magnesium oxide. Different material proportions result in different products, and the ratios and proportions of each raw material are key factors affecting product performance. In raw material proportioning, it is necessary to strictly adhere to the mixing ratios to ensure thorough and uniform mixing.
Grinding
Grinding is a crucial step in electronic ceramic production. It grinds the raw materials into powder, simultaneously eliminating impurities and agglomerates. Modern electronic ceramic production typically employs dry or wet grinding. The ground powder should meet the fineness and uniformity requirements for product processing.
Molding
Molding refers to shaping the ground raw materials into the desired form using methods such as pressing. Electronic ceramic products typically come in various shapes, including spheres, tubes, and plates. Different shapes have different requirements for the molding process, which needs to be adjusted according to the actual situation to ensure that the product's dimensions, shape, density, and other properties meet the requirements.
Sintering
Sintering refers to the process of heating the molded ceramic product at high temperatures, causing the oxide particles to flow and fuse, forming a dense structure. Sintering temperature, holding time, and atmosphere control are crucial factors affecting product performance and quality. Sintered electronic ceramic products should possess high strength, wear resistance, corrosion resistance, and stable electrical and mechanical properties.
Product Processing After sintering, electronic ceramics require processing such as cutting, grinding, trimming, and cleaning to ensure their shape, dimensions, and surface finish meet requirements. This processing stage plays a vital role in product quality and appearance and requires strict control.
Electrical Performance Testing The electrical properties of electronic ceramic products are critical to their application. After processing, electrical performance tests are necessary, such as dielectric constant, dielectric loss, temperature characteristics, and capacitance, to verify that the product's quality and performance meet requirements.