Method for the blasting calibration of a chill mold
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United States of America Patent
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Dec 7, 2004
Grant Date -
Jun 12, 2003
app pub date -
Nov 27, 2002
filing date -
Dec 7, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for blasting calibrating a chill mold (1) is provided. A calibrating mandrel is inserted into chill mold (1), thereafter an explosive material is placed on the outer surface (4) of chill mold (1) and is ignited. The inner side (3) of chill mold (1) is pressed against the calibrating mandrel by the explosive force, and brought to the setpoint measure. In the mold wall (2), chill mold (1) has bores (5) for cooling means and for measuring elements, which extend in the longitudinal direction (LR) of chill mold (1) and exit at the end faces (6, 7) of mold wall (2). Before the blasting calibration, the bores (5) are filled up with a free-flowing material and tightly closed. The free-flowing material is preferably an incompressible fluid and/or a bulk material.
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