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Our offered Product range includes dynamic sealing, SIGRACOMP CFRP components, SIGRACOMP CFRP Friction Materials, Racing Brake Disks and Carbon Fiber-Reinforced Carbon (C/C).

Graphite Electrodes

Graphite electrodes are used for the recycling of steel in the electric arc furnace industry, so called "mini-mills." We do not simply provide graphite electrodes and connecting pins as standalone products to our customers. Rather, the focus is on the delivery of an entire "product system", supported by sales and technical experts from the receipt of the customer's order, throughout the entire production process, to final consumption in the steel plants.

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Carbon Electrodes

SGL Group has more than 100 years of experience in the manufacture of carbon electrodes. Over the years we have worked to increase the quality of our amorphous carbon electrodes. In our technology and innovation center in Meitingen our continuous improvement efforts ensure that our electrodes meet the ever-growing requirements of our customers. SGL Group has more than 100 years of experience in the manufacture of carbon electrodes. Over the years we have worked to increase the quality of our amorphous carbon electrodes. In our technology and innovation center in Meitingen our continuous improvement efforts ensure that our electrodes meet the ever-growing requirements of our customers.

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cathode blocks

One of the key products of the Performance Products Business Unit is cathodes. Cathode blocks are used in the lining of aluminum electrolysis cells. Sidewall blocks and ramming pastes round up the cathode product portfolio - providing complete custom-made solutions to optimally fit the requirements in the Aluminum Smelter. SGL Group is offering the complete product range from amorphous, graphitic and graphitized cathodes. In addition, the Technical Service provides professional and highly qualified support around the application of cathodes, sidewalls, ramming pastes in customers' processes. The continuous development of next generation products supports optimal solutions to the increasing challenges in the smelting process such as cell life, productivity, and energy efficiency. SGL Group serves the leading Aluminum producers.

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Furnace Linings

The Blast FurnaceBlast Oxygen Furnace route was developed for the production of high quality primary steel. It is the most successful route to produce primary steel. As the availability of scrap metal and electricity increases, the number of EAF (Electric Arc Furnaces) will increase to recycle the scrap. The EAF steel will not be sufficient to cover the steel demand in the world, and both production routes have a bright future. In the beginning of the 60ies, the refractory lining of the lower part up to the middle stack of blast furnaces was turned successfully to carbon and graphite materials. SGL Group actively pushed this development. The improvement of material and design solutions has significantly increased the productivity and campaign life of Blast Furnaces since then. SGL Group has been an expert partner to the steel industry since the beginning. SGL Group is able to meet all specific requirements for Blast Furnaces due to the most comprehensive product range of the Furnace Linings Industry. The range consists of carbon and graphite grades including supermicroporous carbons and microporous ceramic carbons, glues and cements to cater to the specific needs of the different areas in the Blast Furnace or Submerged Arc (Reduction) Furnace. Intensive development work ensures continued best solutions for the future. SGL Group provides state-of-the-art machining with the tightest tolerances. Several assembly plates shorten lead-times and reduce the number of inspections.

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dynamic sealing

Carbon and graphite materials are put to a wide range of uses in the chemical industry thanks to their exceptional sealing properties. Many processes involve the pumping, stirring and transport of corrosive, toxic or explosive media. The pumps used have rotating shafts with axial seal rings which must dependably keep out gases or fluids with low hydrodynamic lubricity. We assist our customers with our long-standing experience in sealing applications and our extensive knowledge on materials with innovative, often tailor-made solutions – even in small production runs.

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SIGRACOMP CFRP components

Carbon fiber-reinforced plastics (CFRP) are materials consisting of several components: a basic or carrier substance known as the “matrix”, as well as a reinforcing second component – carbon fiber – which is embedded in the matrix. This combination results in high-performance materials with new properties. Depending on the matrix material and fiber type, these properties can vary widely and be optimized for use in the requested application. Carbon fiber-reinforced plastics are indispensable in high-tech applications, where high strength and good rigidity are just as essential as low weight. The properties of CFRP materials bring to bear precisely when other materials reach their limits. Typical properties of CFRP components: low weight high strength and break resistance good rigidity corrosion resistance vibration resistance low thermal expansion

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SIGRACOMP CFRP Friction Materials

CFRP wet friction materials consist of woven carbon fiber embedded in a synthetic matrix system. Thermosetting plastics are used mainly to serve as a binding constituent. Our CFRP materials show excellent performance in wet friction applications. SIGRACOMP® CC Friction Materials CarbonCarbon wet friction materials are composed of woven carbon fiber with a pyrolytic carbon binder produced by chemical vapor deposition (CVD) of hydrocarbon gas. The carbon binder holds the fibers together but is porous to allow oil flow. The woven surface provides natural oil flow channels. Major Benefits Excellent compressive strength Very low wear over lifetime Constant CoF over lifetime High misuse friction energy capability Good green shift ability Broad oil compatibility Applications Transmission synchronizers Slip differentials Torque converter clutches Wet brakes and clutches

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Racing Brake Disks

Automotive Racing Products: CarbonCarbon (CC) brakes are at their premium performance levels in high energy situations. They have outstanding thermal shock resistance, do not fade, offer consistent brake performance, are light weight and wear resistant. The brake rotor and pads are made entirely from CC as it provides both structural and frictional properties. We developed the first automotive racing application of CarbonCarbon brakes for Formula One teams. Today we utilize the focused concept to develop and produce friction products for a growing list of customers on the move. This concept concentrates our expert personnel and production equipment to support existing and new friction products and customers, optimizing throughput and service while minimizing costs.

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Carbon Fiber-Reinforced Carbon (C/C)

We have been manufacturing carboncarbon (CC) brake materials from their initial development on high performance military aircraft through the wide spread acceptance on commercial aircraft. Our CC materials are qualified on a number of military and commercial aircraft. Years of production and development of aircraft brakes have led to new products and applications utilizing the technology and unique properties of carboncarbon.

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Carbon-Ceramic Brake Discs

At the IAA in Frankfurt in 1999, the carbon-ceramic brake disk had its world premiere. The use of the high-tech material had revolutionized the brake technology: In comparison to the conventional grey cast iron brake disk the carbon-ceramic brake disk weighed round 50 per cent less reducing the unsprung mass by almost 20 kilograms. Further significant advantages are: improved brake response and fading data, high thermal stableness, no hot judder, excellent pedal feel, improved steering behavior, high abrasion resistance and thus longer life time and the advantage of avoiding almost completely brake dust. At first Porsche AG built the carbon-ceramic brake disk in 2001 into the 911 GT2 as series equipment. Since that time also other premium brands use the advantages of this innovative brake technology for more security and comfort. These are for example sports cars and luxury class limousines from Audi, Bentley, Bugatti and Lamborghini. Dimensioning and Design The overall car braking system is designed to match a car´s layout and take advantage of the ceramic brake disk material´s properties. We cover the designing of the brake – the construction of the brake disk as well as the selection of the friction layers and the caliper – and adjust the brake into the concept of the vehicle. The main parameters determining the braking system design are a car´s maximum speed, the time sequence of full brake applications possible to bring a car to a stop from top speed and the mass to be braked, in addition to the axle load distribution and the car´s aerodynamics. The purpose of brake disk dimensioning and design is to ensure that a car can be stopped safely under any conceivable driving conditions. Braking system design also needs to ensure that neither the disk itself nor any other component in its direct vicinity is exposed to excessive thermal loads. The optimal cooling vane geometry is determined by numerical methods (Computational Fluid Dynamics) for each car model. The design calculation also takes account of the air pressure building up underneath the car and inside the wheel arch as a function of the car´s aerodynamic design and traveling speed.

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  • Steve Hagy
  • 10130 perimeter parkway dr suite 500 charlotte, nc 28216, United States