Generally, 50 parts per billion (ppb) of oxygen is the lowest practical level that can be achieved with vacuum degasification.
The disclosed vacuum degassing method for alkali-free glass can apply optimal vacuum degassing conditions to a plurality of types of alkali-free glass having different viscosities.
The inventive method comprises the following steps consisting in: (i) subjecting the casing to vacuum degassing, and (ii) covering the lid with a hermetic layer (107) which is preferably made from silicon oxide.
A method for automatically degassing circulated liquid using wall-flow vacuum degassing machine is provided.
Provided is a vacuum degassing apparatus having a means for measuring the flux line level of the molten glass in a vacuum degassing tank.
Also disclosed is a vacuum degassing apparatus which is suitable for the method for producing molten glass.
The method for vacuum-degassing a molten glass comprises passing the molten glass through a vacuum-degassing tank, the inside of which is kept in a vacuum state, to thereby vacuum-degas the molten glass.
This invention and the addition technique are not limited in application to RH vacuum-degassing equipment.
Disclosed is a method in which optimal vacuum-degassing conditions are used when a molten glass is vacuum-degassed using a chloride-based clarificant.
We have developed and designed a degassing system for the treatment of hydrogenated liquid radioactive effluents from the nuclear test reactor RES by performing a low temperature vacuum deaerating.
The invention aims to provide an improved dispensing device according the above preamble, wherein the drawbacks of under pressure, the occurrence air bubbles and degassing is not present.
It is a complete and customized solution that includes membrane ultra-filtration, sulphate removal and vacuum deaeration.
It is a complete and customized solution that includes membrane ultra-filtration, sulphate removal and vacuum deaeration.
Disclosed is a method for producing molten glass, wherein decrease in the vacuum degassing effect due to an enlarged foam layer is prevented.
The simplest method to determine the amount of air or another gas in the oil is high vacuum degassing.
The apparatus can remove limiting factors of suspending a continuous vacuum degassing refining process and thus prolong lifetime of the vacuum vessel and save manufacturing cost.
We are also now able to provide the Vacuum Outgassing/Deposition Kinetics Apparatus (VODKA) as a turn-key unit.
Then there are also fish kills that have no other explanation that could be a result of underwater outgassing...
A process for producing a glass, in which the synergic effect of vacuum deaeration (vacuum clarification) and clarificant is enhanced by regulation of glass composition, thereby obtaining a high clarification effect.
This outgassing can be seen in this artist’s impression as a subtle cloud being ejected from the side of the object facing the sun.
This outgassing can be seen in this artist's impression as a subtle cloud being ejected from the side of the object facing the Sun.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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