Zircaloy-2 and zirconium tubes have been drawn down to 0.22 mm wall thickness. Some factors affecting the finished product have been studied : lubrication, shape of the dies and thermal treatment after each pass. The lubrication mechanism during the drawing has demonstrated the necessity of a well-bonded underlayer to fix the lubricant ; as underlayers have been studied: oxide, phosphate and bonderisation layers. The latter is to be preferred. Good results were obtained with tungsten carbide dies having an entry angle of 30° and a cylindrical part of 3mm length.
Original language | English |
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Publisher | SCK CEN |
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Number of pages | 10 |
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State | Published - Apr 1964 |
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Name | SCK CEN Reports |
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Publisher | SCK CEN |
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No. | BLG-347 |
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