Electrical Alumina Ceramic Fused Body
Products Description
Our Electrical Alumina Ceramic Fused Body are made from high-purity alumina through high-temperature sintering, resulting in a signature ivory yellow or crystalline texture. Unlike ordinary ceramics, this special ceramic, developed for the power industry, possesses excellent thermodynamic stability.
Geometric Precision: The square structure is precision-molded to ensure a micron-level fit with the metal end cap, effectively preventing leakage of the filled silica sand.
Dense Microstructure: Extremely low water absorption and extremely high fracture toughness allow it to maintain its physical integrity even under the immense stress generated by a short-circuit current.
Surface Inertness: Excellent resistance to electrochemical corrosion, maintaining insulation performance for decades even in humid or chemically corrosive substation environments.
Production Process and Manufacturing Advantages: The Transformation from Powder to Finished Product
| Advanced Isostatic Pressing Technology | This is key to ensuring uniform product density. Unlike traditional mechanical pressing, isostatic pressing uses a liquid medium to transmit pressure, causing the Ceramic Body for DC Fuse Link powder to be uniformly compressed in all directions. This process eliminates density gradients within the green body, completely preventing deformation, delamination, or internal cracking after sintering, ensuring the uniformity of each fuse from core to surface. |
| High-Temperature Tunnel Kiln Firing | We have introduced a modern high-temperature tunnel kiln with a fully automated temperature control system. The product undergoes three stages-preheating, firing, and cooling-in a high-temperature environment above 1600°C. The temperature curves for each stage have been verified through numerous experiments. This precise temperature control not only ensures the full sintering of alumina crystals but also achieves industry-leading product consistency. |
| Precision Cold Working Capability | The sintered Ceramic Body for Littelfuse has an extremely high hardness, approaching that of diamond. We are equipped with a professional ceramic precision machining center to perform precision grinding and polishing on the sintered tubes. This process not only gives the product a smooth, mirror-like surface but also eliminates micro-crack sources, greatly improving the product's bending strength and appearance. Each "yellow square ceramic body" is finely polished, with a warm touch and sharp edges. |
Core Functions: Performance Under Extreme Conditions
Pressure Vessel Function
At the instant of short-circuit current interruption, the internal pressure increases dramatically. As a pressure vessel, the Ceramic Body for Mersen must withstand this instantaneous high pressure without bursting.
Electrical Isolation Function
Provides reliable electrical creepage distance and clearance after a high-voltage system fault.
Mechanical Support Function
Bears the mechanical load of the fusible element, silica sand, and external terminals over the long term.
Product Details
Front View
A neat, yellow square shape with a smooth, bubble-free glaze and clearly visible rounded corners.
01
Side Sectional View
Uniform internal cavity wall thickness; high-precision machining of positioning grooves and terminal holes, free of burrs for Ceramic Body for Fast Fuses.
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End Face Close-up
High flatness of the metal cap mounting surface; standardized threaded or slotted interfaces.
03
Glaze Layer Magnified Details
High-temperature molten glaze tightly fuses with the Fuse Link Ceramic Body substrate, forming a seamless protective layer.
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Sintered Cross-Section Microscopic View
Densely arranged grains, free of microcracks and pores, ensure long-term stable performance.
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contact us
If your Ceramic Body for DC Fuse Link is seeking a fuse supplier with stable manufacturing capabilities and mature electroceramic technology, our engineering team can provide professional manufacturing and technical support tailored to your fuse structural requirements. Please feel free to submit an inquiry to communicate with us further.
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