Grünkörper und Partikelmischung

Details

Veröffentlichungs-Nr.

EP4803498

Anmeldetag

5. März 2025

Veröffentlichung

9. September 2026

Rechtsraum

EP

Abstract

A green body for manufacturing a porous abrasive article by sintering is formed by a mixture of particles which comprises an amount of abrasive particles constituting at least 70% of the weight of the mixture, and a plurality of binder particles (1) dispersed between the abrasive particles and constituting at least 5% of the weight of the mixture. Each binder particle (1) comprises a binder material having a flux temperature of 600°C or higher. The binder material is adapted to be solid at room temperature, to be flowable at the sintering temperature, to wet, at the sintering temperature, two abrasive particles of the amount of abrasive particles, and to form, after sintering, a solid bond binding the two abrasive particles together at room temperature, so that the two abrasive particles and the binder material of the binder particle form a portion of the porous abrasive article. Before sintering, each binder particle (1) comprises a hollow void (10) surrounded by a void wall (20) formed by a portion of the binder material. The geometric volume of the void (10) is adapted to form, after sintering, a pore in the porous abrasive article.

Anmelder

Firma

NCM Investments XXV B.V.

Land

🇳🇱 Niederlande