The unique combination of thermal, mechanical, electrical and physical properties makes Boron Nitride a unique material for hot metal processing and refractory applications. Boron Nitride, a truly versatile material, is commonly used in powder form as solid lubricants or mold release agents, in liquid coating form as liquid release agents, and in solid form as hot-presses intricately shaped solid components for furnace construction, crucibles, and insulators.
The key properties that contribute to Boron Nitride's versatility in metal processing applications are:
Combat® Boron Nitride Powder is the lubricant of the future for the aluminum extrusion industry. Its lubricity, economy, and ease of application far exceed those of other more commonly used lubricants today.
The lubricity of boron nitride is unmatched. Experience has shown that boron nitride need only be applied to every 3 - 5 billets. The quantity used is easily controlled, and the billet usually transfers enough to the dummy block that no further lubricant is required.
Combat® Boron Nitride Machinable Ceramic Component, Grade ZSBN has long combined the properties demanded by horizontal continuous casters. Saint-Gobain has reliably supplied the world's casters for many years. Resistant to corrosion, wear and thermal shock, it is machinable to tight tolerances and has the thermal conductivity needed for successful casts.
Combat Boron Nitride Powders are the backbone of high temperature mold release products. They are used as the main ingredient in coatings of molds for secondary aluminum processing, superplastic forming or forging, and glass casting.
Combat® Boron Nitride Powders may also be burnished as a dry powder onto metal or graphite surfaces that come in contact with molten and often corrosive glass, ceramic and metallic materials to provide separation and protection.
Combat Boron Nitride Coatings are the backbone of high temperature mold release products. They are used as the main ingredient in coatings of molds for secondary aluminum processing, superplastic forming or forging, and glass casting.
When used as a barrier release agent Combat® Boron Nitride Coatings form a unique layer between the forming surface and the casting material. This layer resists wetting by molten glasses and slags up to 1370°C in reducing atmospheres preventing adhesion to the working surface.
Saint-Gobain is the world's largest producer of Boron Nitride materials for high temperature metals applications. Boron Nitride is a refractory ceramic with low expansion and high thermal conductivity, making it the ideal choice where thermal shock and resistance to molten metals are critical. Its machinability makes threads, small holes and fine detail very easy to design with precision and tight tolerance.
Combat® Boron Nitride Machinable Ceramic Component, Grades ZSBN, AX05, and HP are all currently being used for powder metal nozzles. All grades offer excellent thermal shock resistance and are non-wet by molten metals. Many specialty metal alloys can have their specific particle size distributions designed and controlled to increase yield from the first cast.
Combat® Boron Nitride, Grade ZSBN Machinable Ceramics and its tailored composites are the ideal combination of properties required for the demanding application of side dams. With thermal-shock resistance, corrosion resistance, high temperature strength, lubricity and machinability, ZSBN-composites are the only materials that can survive and allow dependable, performance over the maximum number of casts demanded by thin-strip steel casting.
Metal / alloy forming using high temperatures and pressures require lubrication to reduce friction during material elongation. With forming temperatures up to 800°C, Combat® Boron Nitride Coating is an excellent option to reduce galling / surface forces while maintaining surface finish.