Glass Why Do Bubble Scratches Appear?
- Author:Demi
- Source:Sunny Glassware
- Release Date:2022-11-01
Sunny Group has offered glassware since 1992 with all kinds of products being exported to more than 30 countries and regions.Glass is a very common material in our life. It is widely used in aromatherapy, candlestick, cup and other products, but why does glass appear bubble marks? There are several reasons, Sunny Glassware will take you to understand:
(1) Uneven thickness. This refers to the uneven distribution of the glass on the glass bottle. The main reason is that the temperature of the glass gob is uneven. The part with high temperature has low viscosity and is easy to blow thin. The part with low temperature has high resistance and is thicker. The temperature of the model is not uniform, the glass with the high temperature cools slowly, and the is easy to blow thinly, and the glass with the low temperature is blown thick because the glass cools quickly.
(2) Cracks. Cracks are the most common shortcomings of glass bottles. They may be very thin. Some can only be found in reflected light. The most frequent parts are the mouth, neck and shoulders of the bottle, as well as the body and bottom of the bottle. There are cracks.
(3) Insufficiency, if the temperature of the gob is too low or the model is too cold, the mouth, shoulders, etc. will not be fully blown, resulting in defects such as gaps, shrunken shoulders and unclear patterns.
(4) Deformation, the temperature of the gobs and the action temperature are too high, the bottle ejected from the forming die has not been completely set, and tends to collapse and deform. Sometimes the bottom of the bottle is still soft and the traces of the conveyor belt will be printed on the bottom of the bottle, which makes the bottom of the bottle uneven.
The above are the four factors why glass candlesticks have bubble marks,Sunny Glassware Product quality is the major focus in Sunny. Sunny once demolished 80,000 pcs of glass vessel with barely visible blemish.
(1) Uneven thickness. This refers to the uneven distribution of the glass on the glass bottle. The main reason is that the temperature of the glass gob is uneven. The part with high temperature has low viscosity and is easy to blow thin. The part with low temperature has high resistance and is thicker. The temperature of the model is not uniform, the glass with the high temperature cools slowly, and the is easy to blow thinly, and the glass with the low temperature is blown thick because the glass cools quickly.
(2) Cracks. Cracks are the most common shortcomings of glass bottles. They may be very thin. Some can only be found in reflected light. The most frequent parts are the mouth, neck and shoulders of the bottle, as well as the body and bottom of the bottle. There are cracks.
(3) Insufficiency, if the temperature of the gob is too low or the model is too cold, the mouth, shoulders, etc. will not be fully blown, resulting in defects such as gaps, shrunken shoulders and unclear patterns.
(4) Deformation, the temperature of the gobs and the action temperature are too high, the bottle ejected from the forming die has not been completely set, and tends to collapse and deform. Sometimes the bottom of the bottle is still soft and the traces of the conveyor belt will be printed on the bottom of the bottle, which makes the bottom of the bottle uneven.
The above are the four factors why glass candlesticks have bubble marks,Sunny Glassware Product quality is the major focus in Sunny. Sunny once demolished 80,000 pcs of glass vessel with barely visible blemish.