Measuring and testing – Surface and cutting edge testing – Roughness
Patent
1996-08-28
1998-07-14
Noland, Thomas P.
Measuring and testing
Surface and cutting edge testing
Roughness
72 3101, 73159, G01N 3320
Patent
active
057807264
ABSTRACT:
An embossed cold rolled metal (e.g. steel) sheet for use in manufacturing appliances and method of making same wherein the surface attributes of the embossed sheet are optimized to improve corrosion resistance of the painted product, promote uniform paint coverage of the sheet surface, reduce paint consumption, enable repainting without loss of pattern crispness, and provide consistent and aesthetically pleasing appearance of the painted sheet. The embossed sheet has a plurality of plateaus and impressions defined therein in a manner such that the arithmetic average surface roughness (Ra) of the plateaus is from about 50 to 100 microinches, the maximum impression depths over a given area are from about 0.0025 to 0.0032 inches, the impression walls define maximum slopes of from about 8-17 degrees, and there are no sharp corners or ridges at the transition points between plateaus and impressions.
REFERENCES:
patent: 3087329 (1963-04-01), Von Grodek et al.
patent: 3123999 (1964-03-01), Judd
patent: 3313149 (1967-04-01), Spragg
patent: 3372578 (1968-03-01), Harmon
patent: 3543571 (1970-12-01), Whitehouse
patent: 3583216 (1971-06-01), Milewski
patent: 3754873 (1973-08-01), Bills et al.
patent: 4059000 (1977-11-01), Bodner
patent: 4092842 (1978-06-01), Oser et al.
patent: 5182171 (1993-01-01), Aoyama et al.
patent: 5272443 (1993-12-01), Winchip et al.
Bastawros Adel F.
Speer John G.
Bethlehem Steel Corporation
Noland Thomas P.
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