I. Core Aggregate / Base Material for Ceramic Bodies (Primary Application)
1. Wear-Resistant Structural Alumina Ceramic Parts
Applicable products: wear-resistant liners, ceramic plungers, valve cores, pipeline linings, shot blasting machine components, textile ceramic yarn guides
Selection logic: Coarse-grade white fused alumina (80#–320#) acts as the main skeletal aggregate, while fine-grade white fused alumina micropowder (600#–1500#) fills interparticle voids to improve the packing density of green bodies.
Functions: Enhance the flexural strength, wear resistance and impact resistance of finished products, and deliver stable dimensional performance under high temperatures for heavy-duty abrasive working conditions. Low-iron formulations prevent black spot defects on finished ceramics.
2. Porous / Filter-Type Alumina Ceramics
Applicable products: ceramic filter plates, industrial ceramic filter tubes, porous ceramics for wastewater / molten material filtration, catalyst carriers
Selection logic: White fused alumina micropowder in grades 400#, 500#, 600#, 700# and 800# forms the main skeleton, and is blended with finer powder to adjust pore size and porosity.
Functions: Produce uniform pore structures during forming with stable sintering shrinkage and outstanding acid & alkali corrosion resistance, suitable for filtration scenarios including metallurgical molten aluminum treatment, chemical waste liquid purification and photovoltaic slurry separation.
3. Electronic Insulation Alumina Ceramics
Applicable products: ceramic insulating bases, power device ceramic pedestals, small-circuit insulating components
Selection logic:High‑purity low‑sodium white fused alumina micropowder (1000# & finer) is the primary raw material, with tight Na₂O and Fe₂O₃ impurity control.
Functions：It delivers stable insulation and thermal conductivity, preventing impurity‑induced leakage and sinter blistering in small/medium‑power electronic components. High‑precision substrates mainly use submicron high‑purity alumina powder; coarse white fused alumina is added only for minor gradation tuning
4. Heat-Resistant Kiln Furniture / High-Temperature Ceramic Components
Applicable products: ceramic setter plates, saggers, high-temperature thermocouple protection tubes
Functions: Match the thermal expansion coefficient of the base material to deliver superior thermal shock resistance, resisting cracking during repeated heating and cooling cycles and enduring direct open-flame high-temperature exposure.