Ceramic Casing For Fuse Link

When subjected to the high-voltage DC interruption process, standard ceramics may suffer from localized melting or insulation breakdown due to the extremely high-temperature electric arcs generated (which can reach several thousand degrees Celsius). In contrast, high-purity alumina ceramics possess an exceptionally high melting point, superior resistance to arc erosion, and outstanding thermal shock stability; they are capable of maintaining their structural integrity and insulation properties even under extreme temperatures, making them a critical choice for ensuring battery safety.

This is achieved through a combination of highly dense sintering processes and precision metallization-welding techniques. By carefully controlling the powder particle size distribution and sintering profiles, the ceramic body is processed to achieve a density approaching its theoretical maximum. Simultaneously, advanced processes-such as Active Metal Brazing (AMB) or Direct Plated Copper (DPC)-are employed to establish an atomic-level metallurgical bond between the ceramic and the metal terminals, thereby guaranteeing that the weld joints remain leak-proof throughout prolonged thermal cycling and high-frequency vibration.

Absolutely. Although high-voltage fuses are governed by general industry standards, the internal spatial layouts adopted by different automotive manufacturers and energy storage integrators vary significantly. Based on drawings provided by the client, we can undertake extensive customization of the ceramic casing's external dimensions, internal cavity structure, mounting hole positions, and metal terminal layout to precisely meet specific electrical parameters and assembly requirements.