Process for heat treatment of glass and fluidised bed for carrying out the processGlass is tempered by contact with solid particles fluidised with a gas to ensure that transfer from the glass the glass to the particles. The fluidised material is kept in a steady state of uniform fluidisation....
The invention provides a process capable of heating sol-gel tubes used in the manufacture of glass optical fibre preforms, or other bodies (11,27) in a manner that both limits the amount of undesir
Annealing is the second type of heat treatment procedure. It is mostly used to change the properties of metals. Nonetheless, glass and plastic can also go through the annealing process to improve its physical and chemical properties. Once the annealing process is done the polymer and or other ...
Glass and glass ceramics with the molar composition 60SiO 2–30Na 2O–10Nb 2O 5 (mol%) were prepared by the melt-quenching method. Sodium niobate (NaNbO 3) crystallites were precipitated on the surface of the glass through a controlled heat-treatment (HT) process. The NaNbO 3 crystallite...
Among the Enhanced Oil Recovery (EOR) methods, gas-based EOR methods are very popular all over the world. The gas injection has a high ability to increase microscopic sweep efficiency and can increase production efficiency well. However, it should be not
Beverage filling and sealing for glass bottle and crown cover. This machine adopts international advanced technology, scientific and reasonable design, beautiful appearance, complete functions, convenient operation and maintenance, high degree ...
examined the use of “low cost reactors” at neutral pH for removal of contaminants of emerging concern and found they could remove 80 % of them within 15 min of treatment. The optimisation of the process at a neutral or near neutral would also result in many different benefits for the ...
Alloy for glass fibre centrifuges A nickel-based alloy useful in the manufacture of a glass fibre centrifuge of which the composition consists essentially of the following elements expresse... V Stella - US 被引量: 2发表: 1995年 Influence of Composition and Aging Heat Treatment on the ...
Temkin isotherm (Equation (4)) assumes that the heat of adsorption of the molecules on the surface of the adsorbent decreases linearly, instead of logarithmic. These isotherm models were studied before in similar system by Bao et al. (2018), Dawodu et al. (2014) and Morcali et al. (...
4. A process according to claim 2, wherein the size of the microcracks is determined by subsequent heat treatment. 5. A process according to claim 4, wherein the extent of the microcracks perpendicular to the surface does not exceed 0.5×thickness of the glass wall. ...