What are extruded and vibration molded graphites?

What are extruded and vibration molded graphites?

 

What are extruded and vibration molded graphites?

Extruded graphite is manufactured through an extrusion process, exhibiting a coarser grain size and lower strength compared to isostatic graphite. However, it boasts higher thermal and electrical conductivity. On the other hand, vibration-molded graphite is known for its uniform structure, typically featuring a medium grain size. This material demonstrates planar isotropic properties and can be produced in large formats.

 

Typical properties of extruded and vibration molded graphites

 

Extruded and vibration-molded graphites are two common forms of graphite materials with distinct properties. Here are the typical properties of each:

Extruded Graphite:

Density: Extruded graphite typically has a high density, which contributes to its strength and durability.

Strength: It exhibits good mechanical strength, making it suitable for applications that require structural integrity.

Porosity: Extruded graphite tends to have lower porosity compared to other forms of graphite, making it less permeable to gases and liquids.

Surface Finish: The surface finish of extruded graphite is generally smooth and uniform.

Thermal Conductivity: It possesses excellent thermal conductivity, making it suitable for applications where heat transfer is critical.

Electrical Conductivity: Like other forms of graphite, extruded graphite is an excellent conductor of electricity.

Machinability: Extruded graphite is often machinable, allowing for the creation of complex shapes and precision components.

Resistance to Thermal Shock: It can withstand thermal cycling without significant damage, making it suitable for high-temperature applications.

Vibration-Molded Graphite:

Density: Vibration-molded graphite typically has a lower density compared to extruded graphite, which can make it lighter.

Strength: While it may have slightly lower mechanical strength compared to extruded graphite, it still exhibits good strength properties.

Porosity: Vibration-molded graphite tends to have higher porosity, making it more permeable to gases and liquids.

Surface Finish: The surface finish of vibration-molded graphite may be less smooth compared to extruded graphite.

Thermal Conductivity: It retains excellent thermal conductivity, similar to extruded graphite.

Electrical Conductivity: Like other graphite forms, vibration-molded graphite is an excellent electrical conductor.

Machinability: It is generally machinable, allowing for the creation of various shapes and designs.

Resistance to Thermal Shock: Vibration-molded graphite can also exhibit good resistance to thermal shock, depending on the specific formulation and manufacturing process.

Applications where extruded and vibration molded graphite is used

We support the metal industry with innovative and powerful materials. Thanks to their technical characteristics, these materials ensure quality, cost-effectiveness and environmental compatibility, from the achievement of the highest purity grades through to the streamlining of mechanical processing and on to saving on flushing gas. In addition, our materials and products enhance the performance of systems and processes in numerous applications.

• Aluminum treatment
• Melt treatment
• Continuous casting

Frequently Asked Questions (FAQs):

1. Which industries commonly use extruded graphite?

   • Extruded graphite finds applications in industries such as electronics, metallurgy, and aerospace.

2. What are the key advantages of molded graphite?

   • Molded graphite boasts unique physical characteristics, including high density and fine-grain structure, making it ideal for specific applications like crucibles and molds.

3. Is extruded graphite more cost-effective than molded graphite?

   • The cost-effectiveness of graphite types depends on the application; extruded graphite may be more cost-effective in some scenarios, while molded graphite excels in others.

4. Are there any environmental concerns associated with graphite production?

   • Manufacturers are increasingly adopting sustainable practices, but it's essential to consider the environmental impact and explore recycling possibilities.

5. How can businesses stay updated on the latest trends in the graphite industry?

   • Keeping an eye on industry publications, attending conferences, and networking with experts are effective ways to stay informed about graphite industry trends.