veining


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veining

[′vān·iŋ]
(metallurgy)
Lines in a polished and etched metal surface marking slight imperfections in structure of an otherwise single grain.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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This was a severe test that allowed good evaluation of expansion veining. The veining was evaluated by measuring the length and height of the veins and calculating the total surface (Table 1).
In total, 15 silica sands were evaluated using the veining test casting.
Unearthing secrets: new sand core expansion control method revealed
Most aluminum foundries can reduce and/or eliminate veining characteristics through formulation changes in the core mixture.
Reducing surface defects with proper vein reduction: while vein reduction compounds can lead to improvements in iron castings--such as reduction in metal penetration and core erosion--they can result in varying degrees of tensile property reduction

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