Introduction
Traditional sanitaryware typically maintains a density between 2.3-2.5g/cm3. With rising logistics costs and the popularity of wall-hung fixtures, the development of high-strength, low-density ceramics has become an industrial imperative. we believe the essence of lightweighting lies in balancing porosity engineering with mechanical integrity.
1. Key Technical Paths
Precision Control of Closed-Pore Microstructures:
By introducing specific organic or inorganic pore-forming agents into the slip, closed micro-pores are formed during Firing.
The secret lies in "homogenization" and "miniaturization". When pore diameters are kept within 10-50mum, materials can achieve a 15-20% weight reduction while retaining over 85% of their original mechanical strength.
Hollow Micro-sphere (Cenosphere) Reinforcement:
Integrating high-strength hollow ceramic spheres into High-Pressure Casting slurries creates an internal "scaffolding." These spheres reduce mass and act as crack-blunting agents.
According to , a 10% inclusion of lightweight components can reduce thermal conductivity by 12%, enhancing the insulation performance of smart bathroom components.
2. The Role of High-Pressure Casting (HPC) in Lightweighting
The production of lightweight ceramics demands higher precision in forming, particularly regarding wall-thickness uniformity.
Lightweight additives often lead to segregation. Sunlets utilizes a proprietary Composite Deflocculation system to ensure a homogenous distribution of these components even under 1.2 MPa of pressure.
Using our High Pressure Casting Machines, we apply digital pressure compensation to manage the uneven drying shrinkage typical of lightweight green bodies. Testing shows that gradient pressurization can boost the yield rate of lightweight products to over 95%.
3. Future Outlook: Functional Lightweighting
Research is shifting toward multi-scale structural design, such as developing self-cleaning lightweight glazes or using graphene-enhanced lightweight bodies to improve thermal conductivity, paving the way for full-lifecycle green manufacturing.