3D Hot Bending Glass Graphite Mold

With the development of technology, industry demands carbon materials with more uniform, fine-grained structures and more stable properties. Against this backdrop, pioneers in the artificial graphite industry developed isotropic graphite. This graphite material is formed through cold isostatic pressing (CIP), followed by sintering and high-temperature graphitization, resulting in a fine-grained, isotropic structure and properties. Today, isotropic graphite is widely used in many industries, such as rapid quenching heat treatment, the rapidly developing semiconductor industry, the e

nvironmentally friendly new energy industry, the high-precision mold industry, and the nuclear energy industry requiring extremely high reliability. In the past two years, high-end isostatic graphite has gained a new application—for making molds for hot-bent 3D curved glass.

Currently, 3D curved glass is entering a stage of rapid development. Curved screens are more in line with consumer usage habits, offering a softer appearance and feel, and allowing for the addition of more edge-mounted virtual shortcut buttons and alert functions. Curved displays are also currently being used in wearable devices; as a fashionable trend, their use is expected to become even more widespread in the future.

Advantages of Semicorex 3D Hot Bending Glass Graphite Mold

Currently, mainstream forming equipment for 3D hot bending glass graphite molds requires excellent thermal stability, wear resistance, corrosion resistance, self-lubrication, thermal conductivity, and a coefficient of thermal expansion similar to that of hot-bent glass. Good thermal stability ensures the mold does not deform significantly during repeated high and low temperature use. Wear resistance and corrosion resistance help reduce defects such as minor surface peeling and pitting. Self-lubrication prevents the glass from sticking to the mold during hot bending and demolding. Good thermal conductivity allows for rapid and uniform heating of the glass, thus shortening the hot bending process time, improving production efficiency, and uniform heating helps avoid defects in the hot bending process.

In addition, the 3D hot bending glass graphite mold should ideally have good machinability, economy, and sustainable supply to achieve a better cost-performance ratio and ensure timely supply during mass production. From the development stage of hot bending equipment to the present, high-end isostatic graphite has been considered the most suitable material for hot bending molds. Compared with materials such as stainless steel, ceramics, and tungsten carbide, graphite has the best evaluated properties.

Benefits of 3D Hot Bending Glass Graphite Mold:

1. Improves glass surface finish;

2. Non-wetting of glass;

3. Reduces glass stress and minimizes overheating and cracking;

4. Extends mold life;

5. Provides balanced oxidation resistance;

6. Improves machinability;

7. Reduces wear and tear and improves corrosion resistance;

8. Increases yield;

9. Minimizes production downtime;

10. Coefficient of thermal expansion suitable for commonly used high CTE glasses;

11. Consistent processing helps reduce total cost of ownership.