Abrasive medium comprising a phosphate-based filler
AssigneeRhodius Schleifwerkzeuge GmbH & Co. KG
InventorsGunnar BÜHLER, Herbert PÜTZ, Thorsten KONZACK
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Abstract
The invention relates to an abrasive medium which is bonded with a thermosetting material and comprises abrasive particles, a thermosetting binder and optionally further fillers, and contains a phosphate-based additive, the percentage of the phosphate-based additive being 1 to 10 wt.-% of the starting mixture of the abrasive medium. The phosphate-based additive is homogeneously distributed in the abrasive medium. The invention also relates to a method for producing corresponding thermosetting resin-bonded grinding disks.
Claims15
An abrasive medium bonded with a thermosetting material comprising abrasive particles, thermosetting binder, and optionally further fillers,
- characterized in that
- the abrasive medium contains a phosphate-based additive, wherein the proportion of the phosphate-based additive is 1 to 10 wt. % of the starting mixture of the abrasive medium and wherein the phosphate-based additive is distributed homogeneously in the abrasive medium.
A method of producing a grinding wheel bonded with a thermosetting material, which comprises the following steps:
- preparing a pulverulent phosphate-based additive, wherein the proportion of the phosphate-based additive is 1 to 10 wt. % of the starting mixture of the grinding wheel,
- mixing the pulverulent phosphate-based additive with abrasive particles, binder and optionally further fillers, with the result that the phosphate-based additive is distributed homogeneously in the starting mixture;
- pouring the starting mixture into a mould;
- adding glass fabric;
- pressing the mixture to form a green compact;
- curing the green compact to obtain a grinding wheel.
Dependencies are inferred from the claim text.