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ARC Applications
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A bauxite discharge chute was originally lined with ceramic tiles. Since the tiles were subjected to constant abrasion, they disbonded rapidly and the chute was blocked. To protect against further unscheduled shutdowns to repair the chute, the remaining tiles were removed and the entire chute was coated with a protective monolithic ARC ceramic surface. The problems of failing tiles have been eliminated permanently and unscheduled shutdowns are a thing of the past.
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Pulp and paper equipment (bark, woodchip, and parascrews) at a European paper mill were extensively damaged because of abrasion. Even the special alloys and hard-face welding coating the equipment were no match for the abrasive particles. After coating the affected pieces with ARC, the lifetime has been increased 45 times and new equipment is regularly upgraded before use.
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At an aluminum refinery, the casing of a cast-iron pump was beginning to wear away after only six weeks in operation. The conventional approach to repair was to re-face the pump with pure nickel, and while this doubled the service life, the procedure took seven weeks to weld and cost $10,000. The customer switched to ARC products to repair the pumps and now estimates his costs at $2,500 initial coating and an additional touch-up at $200 after 18 months of service. In one year, the savings per pump are approximately $55,000 and ARC has saved this customer over two million dollars.
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