TECHNOLOGY #03
Graphite and Boron Sticks
Graphite suspensions are used as release agents in aluminum extrusion. These materials are known for their high-temperature stability and excellent lubricating properties.
Their effectiveness is influenced by application methods and process consistency, as well as worker health and safety considerations.
How it works
Graphite and Boron sticks are solid lubricants that, when applied to the die surface, form a thin, lubricating layer. This layer reduces friction and prevents sticking or galling of the aluminum as it is extruded.
Both materials maintain their lubricating properties at high temperatures, typical in the extrusion process, ensuring consistent performance.
Product application:
Graphite and Boron sticks are typically applied by manually rubbing them onto the die surface, though this method can present challenges in achieving uniform coverage.
Ensuring a consistent layer is crucial for optimal performance, as uneven application can lead to variable lubrication and increased wear.
For improved consistency and efficiency, automated systems can be employed to apply the lubricant uniformly across the die surface.
References:
Boron Nitride – Solutions for Aluminum Extrusion - Christiane Klöpfer, ESK Ceramics GmbH & Co. KG, A Ceradyne Company, Kempten, Germany (here).
Strengths & Weaknesses
Let´s explore the strengths and weaknesses of using Graphite and Boron Stick lubricants in a common aluminum extrusion process.
Strengths & Weaknesses
Let´s explore the strengths and weaknesses of using Graphite and Boron Stick lubricants in a common aluminum extrusion process.
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