METHOD FOR TABLETING SURFACE TREATMENT OF TABLETING PUNCH OR DIE, PUNCH OR DIE SUBJECTED TO SURFACE TREATMENT BY THIS METHOD, AND TABLET FORMED BY USING THIS TABLETING PUNCH OR DIE
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United States of America Patent
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app pub date -
Feb 7, 2009
filing date -
Feb 8, 2008
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Abstract
A method for tableting surface treatment of a tableting punch or die includes provisional filming and beam irradiation steps. In the provisional filming step, a tableting surface of a base metal material 1 is subjected to shot peening using different type metal grains 2 made of a different type of metal for adhesion, or the different type metal grains 2 are adhered by a binder whereby forming a different type metal film 3 on the surface. In the beam irradiation step, after the different type metal film 3 is formed, the surface is irradiated with an electron beam 4 or laser beam as energy beam to combine the different type metal film 3 and the base metal material 1.
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