Objective Method to Grade Reflectivity of Aluminum Alloys
We are trying to find an objective method to grade reflectivity of aluminum alloys in our extrusion plant.
If anyone knows of a piece of test equipment that will allow us to check reflectivity in a production (not laboratory) setting, please contact me.
Thanks,Howard R. Stewart
Mid-States Aluminum Corp. - Fond Du Lac, Wisconsin, USA
I know of one plating company which measured the reflectivity of cold rolled sheet. It was done with flat rolled samples approximately 12" x 12". Not a lab, but an office near the plating line. The dirtier or smuttier the sheet, the more difficult it was to electro plate. A small instrument was used. It was merely a light, which could measure its own reflectivity. Good reflectivity = clean surface. Less reflective = dirtier surface. They had to develop their own scale of suitable reflectivity.
Unfortunately, I don't remember the name of the company which manufactured the light.The plating company was a major steel company in Cleveland, OH.
Good Luck,Terry Magyar
Berwick Steel Co. - Columbus, Ohio, USA
April 12, 2008
Gloss Meter from UK may be of use in differentiating the gloss thereby idea on reflectivity, but is offline & not online. Instrument is portable type & can be used anywhere.Shankar Nayak
- Mumbai, India
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