Apparatus and methods for high pressure leaching of polycrystalline diamond cutter elements
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United States of America Patent
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May 29, 2018
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app pub date -
Dec 30, 2013
filing date -
Dec 31, 2012
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Abstract
A method for leaching a PCD table for a cutter element includes (a) positioning a PCD table within a leaching chamber. The method also includes (b) submerging the PCD table in an acid within the leaching chamber. In addition, the method includes (c) sealing the leaching chamber. Further, the method includes (d) increasing the pressure within the leaching chamber to a pressure greater than or equal to 20,000 psi after (c).
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