VITRIFIED BOND GRINDSTONE
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United States of America Patent
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Issued Date -
Jun 8, 2023
app pub date -
Nov 18, 2022
filing date -
Dec 6, 2021
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Abstract
A vitrified bond grindstone includes abrasive grains and a bonding material for fixing the abrasive grains, the bonding material includes a parent material containing SiO2 as a main constituent, a sintering assistant oxide, and ZnO, and the content of ZnO is 11 to 15 wt % in weight ratio based on the bonding material. Preferably, the content of the sintering assistant oxide is 20 to 29 wt % in weight ratio based on the bonding material.
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