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Usually the formation of glass bubble for several reasons
by：Lisson
2020-11-11
bottles of bubble diameter and number of bubbles per unit volume to rank.
Products in the shape of the bubble can be round, oval, elongated, deformation and forming process of it.
Most of the bubble is colorless transparent, can also be colored, such as white glauber's salt.
Too small according to the diameter of bubble is grey bubble or dust bubble.
Bubbles of gas in: 0 2, N 2, H 2 O and CO 2, CO and H 2, H 2 S 2, SO, NO. 2, etc.
Sometimes bubble for vacuum bubble or air bubble.
Residual bubble formation
in the process of glass bottle glass melted, powder of various salts will decompose at high temperature, such as of the release of a large number of gas continuously out of the melt. The melt into the clarification stage continue to eliminate air bubbles. To accelerate to eliminate air bubbles, generally USES the high temperature melting system in order to lower the viscosity of the glass, or added to reduce the surface tension, or lower the furnace pressure to make the bubbles to escape. But even so, some bubbles will still remain in the glass, or due to the interaction between glass and furnace gas bubbles and failed to rule out, after the residual bubbles are formed.
to prevent this kind of defect, must strictly abide by the ingredients and melted system, or adjust the temperature of the melted, change the kind and amount of clarifying agent, or proper glass composition change, reduce the melt viscosity and surface tension, etc. Above is conducive to eliminate air bubbles in the glass. The formation of secondary air bubble
the formation of the secondary air bubbles may have two reasons, namely the physical and chemical. Liquid after the clarification, glass liquid in gas liquid two phase equilibrium state, if the glass heating up again after cooling exceeds a certain limit, the dissolved glass due to increased temperature of gas solubility decreased, so the precipitation of the tiny and uniform distribution, quantity, a lot of bubbles, this is the second bubble. This kind of circumstance belongs to physical reasons.
due to chemical causes of secondary air bubbles can be varied. In the use of glass of glauber's salt, glauber's salt not decompose completely in the cooling stage continue to break down to form a secondary air bubbles; Because of barium peroxide containing barium glass at low temperature decomposition form bubbles; To sulfide colored glass and glass containing sulfate contact also produce secondary air bubbles, etc.
due to the secondary air bubbles in the glass of the low temperature condition, the viscosity is very big, and very difficult to rule out tiny bubbles, and because the glass is high viscous liquid, to establish a new equilibrium is relatively slow. Because the cause of the secondary air bubbles is different, should have corresponding measures to prevent the secondary bubbles. The formation of the refractory bubble
glass and refractory bubbles resulting from the interaction of physical chemistry. Refractory material itself has certain porosity, when in contact with the glass, by capillary action, the glass into the gap and to squeeze gas bubbles, refractory porosity is larger, thus the amount of gas released is considerable.
refractory iron oxide in the glass by the remaining salt decomposition plays a catalytic role, which makes glass bubble. By reducing flame burning of refractory material, on the surface or cracks will have carbon, the carbon line and base oxide in the glass and generate bubbles.
in order to prevent the production of this kind of air bubbles, must improve the quality of refractory lower porosity, and on the melted process operations strictly abide by the operating system to reduce temperature fluctuations.
iron caused by bubbles in cold or hot trim glass furnace, is likely to fall into the iron in the kiln, for a long time the iron will gradually oxidation and dissolved in the glass, the glass into brown, and the carbon in iron will be oxidized to CO and co2 to form bubbles. Thus caused by iron bubble on the perimeter is often associated with the brown glass membrane. Other reason for the formation of air bubbles
due to the air between the powder particles in the high temperature melt when does not rule out in time, or by forming due to choose material into the air, or mixing blade into the air and can form the air bubble. When the surface of glass by quenching and make the hard outer, and the inner layer will continue to shrink, then as long as there is tiny air bubbles in the inner creates a vacuum condition, make the tiny air bubbles grow up rapidly and formed the vacuum bubble. In the process of fused eco-friendly tube, if current density is too large, can produce oxygen bubbles near the electrodes.
Technology is a foundational component of today's fast-paced business environment. Guangzhou Lisson Plastic Co.,Ltd who are digital natives are especially equipped to harness technology's power to establish, promote and grow our businesses.
Guangzhou Lisson Plastic Co.,Ltd looks forward for the meeting and the association with your esteemed company.
The same determination is critical for business owners. The journey in luxury cosmetic packaging business is both a challenging and rewarding experience.
in the process of glass bottle glass melted, powder of various salts will decompose at high temperature, such as of the release of a large number of gas continuously out of the melt. The melt into the clarification stage continue to eliminate air bubbles. To accelerate to eliminate air bubbles, generally USES the high temperature melting system in order to lower the viscosity of the glass, or added to reduce the surface tension, or lower the furnace pressure to make the bubbles to escape. But even so, some bubbles will still remain in the glass, or due to the interaction between glass and furnace gas bubbles and failed to rule out, after the residual bubbles are formed.
to prevent this kind of defect, must strictly abide by the ingredients and melted system, or adjust the temperature of the melted, change the kind and amount of clarifying agent, or proper glass composition change, reduce the melt viscosity and surface tension, etc. Above is conducive to eliminate air bubbles in the glass. The formation of secondary air bubble
the formation of the secondary air bubbles may have two reasons, namely the physical and chemical. Liquid after the clarification, glass liquid in gas liquid two phase equilibrium state, if the glass heating up again after cooling exceeds a certain limit, the dissolved glass due to increased temperature of gas solubility decreased, so the precipitation of the tiny and uniform distribution, quantity, a lot of bubbles, this is the second bubble. This kind of circumstance belongs to physical reasons.
due to chemical causes of secondary air bubbles can be varied. In the use of glass of glauber's salt, glauber's salt not decompose completely in the cooling stage continue to break down to form a secondary air bubbles; Because of barium peroxide containing barium glass at low temperature decomposition form bubbles; To sulfide colored glass and glass containing sulfate contact also produce secondary air bubbles, etc.
due to the secondary air bubbles in the glass of the low temperature condition, the viscosity is very big, and very difficult to rule out tiny bubbles, and because the glass is high viscous liquid, to establish a new equilibrium is relatively slow. Because the cause of the secondary air bubbles is different, should have corresponding measures to prevent the secondary bubbles. The formation of the refractory bubble
glass and refractory bubbles resulting from the interaction of physical chemistry. Refractory material itself has certain porosity, when in contact with the glass, by capillary action, the glass into the gap and to squeeze gas bubbles, refractory porosity is larger, thus the amount of gas released is considerable.
refractory iron oxide in the glass by the remaining salt decomposition plays a catalytic role, which makes glass bubble. By reducing flame burning of refractory material, on the surface or cracks will have carbon, the carbon line and base oxide in the glass and generate bubbles.
in order to prevent the production of this kind of air bubbles, must improve the quality of refractory lower porosity, and on the melted process operations strictly abide by the operating system to reduce temperature fluctuations.
iron caused by bubbles in cold or hot trim glass furnace, is likely to fall into the iron in the kiln, for a long time the iron will gradually oxidation and dissolved in the glass, the glass into brown, and the carbon in iron will be oxidized to CO and co2 to form bubbles. Thus caused by iron bubble on the perimeter is often associated with the brown glass membrane. Other reason for the formation of air bubbles
due to the air between the powder particles in the high temperature melt when does not rule out in time, or by forming due to choose material into the air, or mixing blade into the air and can form the air bubble. When the surface of glass by quenching and make the hard outer, and the inner layer will continue to shrink, then as long as there is tiny air bubbles in the inner creates a vacuum condition, make the tiny air bubbles grow up rapidly and formed the vacuum bubble. In the process of fused eco-friendly tube, if current density is too large, can produce oxygen bubbles near the electrodes.
Technology is a foundational component of today's fast-paced business environment. Guangzhou Lisson Plastic Co.,Ltd who are digital natives are especially equipped to harness technology's power to establish, promote and grow our businesses.
Guangzhou Lisson Plastic Co.,Ltd looks forward for the meeting and the association with your esteemed company.
The same determination is critical for business owners. The journey in luxury cosmetic packaging business is both a challenging and rewarding experience.
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