Method for producing large thin-wall integral-ring vitrified grinding wheel

Abstract

The invention relates to a method for producing a large thin-wall integral-ring vitrified grinding wheel. The method for producing the large thin-wall integral-ring vitrified grinding wheel includes the following steps that first, vitrified bond, grinding material and resin are evenly mixed according to a certain proportion; second, the raw materials in the first step are filled into a mold and undergo hot press molding; third, demolding is performed; fourth, high pressure firing is performed, and the large thin-wall integral-ring vitrified grinding wheel is obtained after the firing is completed and the grinding wheel passes inspection. The integral-ring thin-wall grinding wheel with the diameter larger than 200mm and the thickness smaller than 10mm can be directly produced with the production method, yield of the products can reach 99%, and demolding yield of the products can reach 100%. Because the large thin-wall integral-ring vitrified grinding wheel produced with the production method does not have bonding seams in the prior art, the surfaces of the ground products are uniform, and corrugation does not exist.

Description

technical field

[0001] The invention relates to a production method of a ceramic grinding wheel, in particular to a production method of a large thin-walled full-ring ceramic grinding wheel. Background technique

[0002] The production method of general vitrified grinding wheel is: vitrified bond and abrasive are evenly mixed, cold-pressed, fired at high temperature, and the excess part of the surface is processed to obtain vitrified grinding wheel. After the grinding wheel is cold-pressed and formed in the mold, it needs to be demoulded, the formed grinding wheel is taken out, and fired in a high-temperature firing device. Due to the cold press forming, the combination of the vitrified bond and the abrasive is not very fixed, and it is easy to cause deformation or breakage of the formed grinding wheel during demoulding. Especially for some grinding wheels with a diameter greater than 200mm and a thickness less than 10mm, if the whole ring is used for pressing, it is easy t...