500°F Jumbo Walk-In Oven Cures Large Parts

Grieve’s No. 1019 is a 500°F electrically-heated walk-in batch oven designed for curing coatings onto large discs.

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Grieve’s No. 1019 is a 500°F electrically-heated walk-in batch oven designed for curing coatings onto large discs. With workspace dimensions of 18 × 18 × 10 feet, it features 260 kW installed in Incoloy-sheathed tubular elements to heat the oven chamber, while two 30-hp recirculating blowers generate 66,000 cfm airflow to the workload.

The oven features 6-inch insulated walls, aluminized steel exterior and interior, 2-inch insulated flooring with built-in oven truck wheel guide tracks, and motorized dampers on the intake and exhaust for accelerated cooling of the oven chamber. It also includes safety equipment required for handling flammable solvents, including explosion-venting door hardware. 

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Can Electroplated Fe-C be an Environmentally Friendly Alternative to Hard Chromium and DLC Coatings?

Electroplated FeC is an efficient surface treatment based on non-aggressive chemicals with a deposition rate of ~20 μm/h at a process temperature of 50°C.  The FeC coating is carbide-free and temperature stable up to ~250°C with a hardness of 750 HV, which is comparable to frequently applied hardened steels.  The FeC coating has reasonable friction properties and have high affinity towards lubricants because of incorporated amorphous carbon.  Hence, for certain applications, the FeC coating might be an interesting wear-protective alternative to hard chromium and to PVD-deposited low-friction diamond-like carbon coatings (DLC’s), which are rather difficult and costly to deposit on larger items.