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Graphites for Sintering

Sintering is the process used to form shaped metals, ceramics and plastics by using heat and/or pressure without melting it to the point of liquefaction. The basic theory behind it can be observed when ice cubes in a glass of water stick to each other.

Olmec Advanced Materials Ltd graphite is used throughout the pressure sintering industry to produce graphite moulds. Our isostatically moulded graphite provides superb performance in extreme heat and pressure environments used in the sintering process.

There are many advantages of using Olmec Advanced Materials Ltd graphite in the sintering process. These include:

  • Low-cost graphite

  • Fast heating-cooling cycle of graphite

  • Excellent temperature and pressure control at all temperature ranges

  • High mechanical strength of our graphite

What Grade Graphite to Use for Sintering

Understanding changes in the coefficient of thermal expansion is very important when designing a sintering mould. Our grades offer remarkable stability and have been studied over a wide range of temperatures.

The material used to manufacture a sintering mould is selected based on the process temperature and pressure requirements. Some of our grades are selected when the material's electrical and thermal conductivity are the prioritised parameters in order to reduce cycle time. However, when the process pressure is too high, the mechanical strength of the mould is prioritised.

Our in-house team of experts are at your disposal to discuss the best grades to your specific needs.

Fine Grained Graphites

Fine Grained Graphites
Fine grained graphite rods are stocked in a variety of different specifications to enable us to offer grades for the vast majority of applications where fine grained graphites are required. Learn More

Medium Grained Graphites

Medium Grained Graphites
We stock around ten different grades of medium grained graphites with our most popular grade being MCCA. Learn More

Coarse Grained Graphites

Coarse Grained Graphites
Coarse grained graphite rods are primarily used as graphite electrodes for electric arc and ladle furnaces in the steel industry. Learn More

Graphite Manufacturing Process

Manufacturing Process
Synthetic (artificial) graphite is a petroleum-based composite used in a variety of applications requiring superior to natural graphite properties.
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Graphites for EDM

Graphites for EDM
Olmec Advanced Materials Ltd has become increasingly involved in the production of graphite electrodes important in Electrical Discharge Machinery (EDM) where design and precision is required. Learn More