Process for the production of an element comprising at least one block of dense material constituted by hard particles dispersed in a binder phase : application to cutting or drilling tools - Archive ouverte HAL Accéder directement au contenu
Brevet Année : 2008

Process for the production of an element comprising at least one block of dense material constituted by hard particles dispersed in a binder phase : application to cutting or drilling tools

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Alfazazi Dourfaye
  • Fonction : Auteur
Hedi Sellami

Résumé

A process is presented which produces at least one block of dense material constituted by hard particles dispersed in a binder phase, it being possible for the dense material to be enriched locally with binder phase by imbibition. The process includes bringing at least one imbibition area of a surface of the block, preferably coated with a coating material, into contact with an imbibiting material which locally enriches the block with binder phase. The block in contact with the imbibiting material is then subjected to a suitable thermal cycle constituted by heating, temperature maintenance and cooling. This serves to bring some or all of the imbibiting material and the binder phase of the block into the liquid state in such a manner that the enrichment with binder phase takes place solely through the imbibition area. The block is used in connection with the building of a drill bit or tool.
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Dates et versions

hal-00749128 , version 1 (06-11-2012)

Identifiants

  • HAL Id : hal-00749128 , version 1

Citer

Alfazazi Dourfaye, Christophe Colin, Elodie Sorlier, Hedi Sellami. Process for the production of an element comprising at least one block of dense material constituted by hard particles dispersed in a binder phase : application to cutting or drilling tools. United States, Patent n° : US 2008/0240879 A1. 2008, pp.12. ⟨hal-00749128⟩
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