TECHNOLOGY #02
Boron Nitride
Boron Nitride (BN) is used as a release agent in aluminum extrusion. BN is known for its high-temperature stability and lubricating properties.
Its adoption is influenced by specific process requirements such as die complexity, extrusion speed, product surface finish quality, and worker health considerations due to potential particle suspension in the plant.
How it works
Boron Nitride (BN) is a synthetic ceramic material composed of boron and nitrogen atoms.
BN forms a thin, lubricating layer on the surface of the die, reducing friction and preventing sticking or galling of the aluminum as it is extruded.
BN maintains its lubricating properties at high temperatures, typical in the extrusion process, ensuring consistent performance.
Product application:
BN can be applied as a suspension in a solvent or binder, which is then sprayed or brushed onto the die surface.
It can also be applied in powder form or as part of a pre-fabricated coating.
After application, the coating often requires curing, where it is heated to form a stable, adherent layer on 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 Acetylene Flame lubricants in a common aluminum extrusion process.
Strengths & Weaknesses
Let´s explore the strengths and weaknesses of using Boron Nitride lubricants in a common aluminum extrusion process.
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