There is no absolute "best" gas in the glass blowing process. The choice depends on the specific application requirements and cost considerations. The following are several commonly used gases and their characteristics:
1.Air
Advantages: low cost and easy to obtain.
Disadvantages: may contain moisture and impurities, affecting the quality of glass.
2.Nitrogen
Advantages: inert gas, not easy to react with glass, relatively low price.
Disadvantages: relatively poor thermal insulation and sound insulation performance.
3.Argon
Advantages: inert gas, provides good thermal and sound insulation, suitable for high-quality glass products4.
Disadvantages: high cost, belongs to rare gas.
4.Oxygen
Advantages: used to adjust the redox potential of glass liquid and improve melting efficiency.
Disadvantages: may promote oxidation reaction of some materials and requires precise control.
In practical applications, these gases are sometimes mixed according to specific needs to achieve the best blowing effect. For example, in the manufacture of insulating glass, a mixture of argon and nitrogen may be used to balance cost and performance.