Ceramic edging wheel for glass edging machine and preparation method thereof

Abstract

The invention relates to a ceramic edge rolling wheel for a glass edge roller and a preparation method thereof. The edge rolling wheel comprises an edge rolling wheel body and wheel teeth which are annularly arranged on the periphery of the edge rolling wheel body, wherein the edge rolling wheel body and wheel teeth are integrally prepared by molding a ceramic raw material by an injection process and subjected to reactive sintering, which is a crystalline mixture containing a glass phase and a SiAlON phase. The ceramic raw material is composed of the following components in percentage by weight: 25-30% of silicon powder, 10-20% of powdered boron, 50-65% of silicon carbide, and sodium carboxymethyl cellulose which accounts for 0.5-1% of the total weight of the silicon powder, powdered boron and silicon carbide powder. The silicon carbide is composed of 200-mesh fine powder and 74-120-micrometer granules, and the 200-mesh granules account for not less than 45% of the total weight of the silicon carbide. The surface roughness of the edge rolling wheel reaches 0.002 micrometer; and the edge rolling wheel can not pollute the glass or react with the glass liquid when being pulled to float on the tin pot liquid surface.

Description

technical field [0001] The invention relates to a head wheel of a glass edging machine, in particular to a ceramic edging wheel for a glass edging machine and a preparation method thereof. Background technique [0002] The float glass edging machine is used in the forming section of the float glass production line. Its function is to rely on the edging wheel at the front end of the edging machine to pull the glass ribbon floating on the liquid surface of the tin bath forward, and adjust the line of the edging wheel to move forward. The speed, the horizontal deflection angle and the plane inclination angle of the edge wheel can achieve the purpose of controlling the thickness of the glass ribbon and stabilizing the width of the glass plate. [0003] Among them, the edge wheel directly contacts the glass liquid, which is the most important mechanical component that affects glass thinning or thickening and glass quality. For a long time, the edging wheels of the float glass ed...

AI Technical Summary

Problems solved by technology

The edging wheel made of steel material needs to be cooled by cooling water when the tin bath is under the high temperature condition of 1100 ℃. The temperature difference between the side wheel and the glass strip is relatively large, which causes the local temperature of the glass strip to be too low, which is not conducive to glass forming and glass quality; at the same time, it will also cause a large temperature difference in the working condition of the tin bath, and the temperature at the position of the side pulley is low , it is necessary to supplement the heat, especially when a large number of edge machines are used, generally more than 20 pairs of edge machines are used, especially when producing high-quality special glass (ultra-thin / ultra-thick)

The edge pulley made of graphite does not need to be cooled by cooling water, but the wear of the graphite material and the glass plate is relatively large. Replacement, which will adversely affect the working condition of the tin bath and normal production

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