Qgraphites supplies you with custom isostatically formed carbon graphite as well as synthetic graphite in extruded forms. In addition, carbon graphite material that is formed by vibrations is also part of our high-quality product portfolio.
Our technical specialists have many years of experience and a lot of know-how in the field of these production methods. That is why we dare to assure you of the highest quality at all times. You can therefore contact us for a tailor-made delivery for all your specific carbon graphite applications.
Isostatically formed carbon graphite: the strongest results
The strongest synthetic graphite shapes are realized by the isostatic printing technique. Graphite production generally uses raw materials in the form of powder that is fine-grained. The isostatic printing technique, however, differs from the extrusion method, for example, by the way in which the semi-finished products are formed. In contrast to the extrusion method for extruded graphite shapes, the method of isostatic pressing is used here. This process takes place under normal temperatures using a liquid substance. In doing so, a uniform pressure is exerted on all sides of the raw graphite.
A higher cubic density
The result of this isostatic printing technique is that a higher cubic density is created and a higher hardness. At the same time, isostatically formed carbon graphite has a lower porosity. These characteristics and properties make isostatic carbon graphite material particularly suitable for the manufacture of a variety of applications. Especially in applications for continuous pressure casting of non-ferrous metals, but also for sintering, mechanical applications and EDM processing. Furthermore, purified materials are suitable for semiconductor and solar technology. The same applies to metalworking where a clean environment is required.
Applied in various industries
The production of isostatic graphite material began in the 1960s. A manufacturer in Bonn (Germany) was one of the first in the world to produce material with a consistent quality. This material was suitable for applications in the metallurgical and nuclear industries in particular. Today, isostatic carbon graphite represents a large portion of the fine grain graphite material market. It is used in many different industries. It is used in as many as 30 different industries. Besides the metallurgical and nuclear industries, these are also industries for semiconductors, solar energy, EDM, continuous die casting and so on.
Produced by Qgraphites
Qgraphites produces different isostatic graphite grades. Each with different properties. This makes them ideally suited to specific application environments. Our fine-grained graphite production is similar to that of the ceramic industry. This means that the solid raw materials are first ground together with graphite. Then the result is mixed in special equipment with binder pitch. Thus a homogeneous mass is formed. Subsequently, a forming process takes place, which in the case of isostatic carbon graphite is referred to as isostatic printing technique. We call the bodies created by this ‘green’ material. This material is carbonized in an oxygen-free environment. During this process, binder bridges are formed between the solid particles.
Widely appreciated features and attributes
In graphitization, the second thermal processing step takes place. The amorphous carbon is thereby transformed into 3D ordered graphite. After that, further mechanical processing operations can be performed. This, to realize more complex shapes and applications. Further refinements such as purification and coating are also possible. Among other things, using silicon carbide (SiC). With the final result, Qgraphites is guaranteed to offer you all the features and properties that carbon graphite is widely appreciated for:
- Extremely high thermal and chemical resistance
- High electrical conductivity
- High thermal conductivity
- Increasing power with rising temperature
- Easy to modify for complex applications
