Glass Ball Manufacturer introduces the quality of glass balls:

The quality of the glass ball directly affects the stability of the glass fiber drawing operation and the improvement of labor productivity. Therefore, it is necessary to strictly control the appearance quality and inner quality of the glass ball.

1. The appearance quality of the glass ball:
The diameter of the glass ball is 19.5 ± 7mm, and the roundness is 0.5mm. Dense small bubbles with a diameter below 0.5mm are not allowed in the glass ball. Bubbles above 0.5mm: no more than 15 non-alkali glass balls; no more than 10 medium-alkali balls. Stones and colored impurities are not allowed in the glass ball. The surface of the glass ball is not allowed to have a burst of more than 5mm in diameter. The surface of the glass ball must not be contaminated with any oil, alkali powder, rust, serious pitting, and other impurities that cannot be cleaned. The depth of the scissor's scar of the glass ball shall not exceed 0.5mm.

2. The inherent quality of the glass ball
The chemical composition of the glass ball should be stable and meet the requirements of the regulations. The composition of the glass sphere must be analyzed regularly and regularly. When there is a problem or the component fluctuation is too large, the number of analyses should be increased until the component is controlled within the acceptable range. The chemical uniformity of the glass ball is good, which is the result of good melting temperature, clarification, and homogenization during the melting of the glass ball.