Grieve Electric Walk-In Oven Cures Coatings on Titanium

Originally titled 'Electric Walk-In Oven Cures Coatings on Titanium'

Grieve’s No. 946 is a 1,000°F, electrically heated, vertical-airflow walk-in oven currently used for curing coatings on titanium screens.

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Grieve’s No. 946 is a 1,000°F, electrically heated, vertical-airflow walk-in oven currently used for curing coatings on titanium screens. Workspace dimensions measure 72" × 156" × 96". Power is provided by 360 kW installed in Incoloy-sheathed tubular heating elements, while a 24,500-cfm, 20-hp recirculating blower provides vertical downward airflow to the workload.

The oven features 8" insulated walls; a Type 304L, 2B-finish stainless steel interior; a stainless steel exterior with a #4 brushed finish; and a 6" insulated floor with integral truck wheel guide tracks for easy loading and unloading. An inner door gasket seals against the door plug, while an outer gasket seals directly against the front of the oven. A removable, top-mounted heat chamber is also provided.

No. 946 also features a digital programming temperature controller; manual-reset, excess temperature controller with separate contactors; recirculating blower airflow safety switch; and SCR power controller.

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The Systems View in Automotive Finishes: Essential, but Overlooked - The 38th William Blum Lecture

This article is a re-publication of the 38th William Blum Lecture, presented at the 84th AES Annual Convention in Detroit, Michigan on June 23, 1997.  This lecture reviews a number of works in automotive finishing R&D in which understanding of the overall system was absolutely essential to success, from classical nickel-chromium plating to work in vacuum/electroplated hybrids for plated plastics, electrogalvanized zinc and hard chromium in stamping dies.