Sandvik Intellectual Property Ab

Stefan Backlund

A method for sorting hard metal including the steps of subjecting one or more bodies of hard metal to a heat treatment at a temperature of 500&#xb0; C. or higher in an atmosphere including at least one reactive gas component prone to form a reaction product with an element that may or may not be present in the one or more bodies. A sorting operation of the one or more bodies is performed based on a presence or absence of the reaction product in a surface portion of the heat treated one or more bodies.

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Osthammar, Sweden

Stefan Backlund