Search results
Results from the WOW.Com Content Network
In addition to the basic components, the batch also contains cullet from recycled glass to save energy. The cullet content can be up to approx. 85% - 90% (green glass), depending on the requirements of the desired glass color. When changing the glass color (recoloring), the entire process often takes several days in large glass melting furnaces.
The first is the "bubble method", [2] where a glass marble is turned into liquid and then blown into a bubble. It is then smashed into glass flakes and sieved by particle-size distribution. The second method is the "centrifuge method", [3] in which high-temperature liquid glass in a rotating tub creates glass flakes due to the centrifugal force.
This can be utilised to modify or enhance the material properties, or as a way to improve and control the processing charasteristics. [4] Another reason to use fillers is to reduce costs by replacing part of the expensive core material with a cheaper filler. Most of the filler materials used in plastics are mineral or glass based filler ...
Float glass is a sheet of glass made by floating molten glass on a bed of molten metal of a low melting point, typically tin, [1] although lead was used for the process in the past. [2] This method gives the sheet uniform thickness and a very flat surface. [ 3 ]
Glass container manufacture in the developed world is a mature market business. World demand for flat glass was approximately 52 million tonnes in 2009. [9] The United States, Europe and China account for 75% of demand, with China's consumption having increased from 20% in the early 1990s to 50%. [9]
There are many advantages to the engineering and design of the IBC model: Being cubic in form, they can transport more material in the same footprint compared to cylindrical-shaped containers, and far more than might be shipped in the same space compared to packaging in consumer quantities.
Glass disease, also referred to as sick glass or glass illness, is a degradation process of glass that can result in weeping, crizzling, spalling, cracking and fragmentation. [ 1 ] [ 2 ] Glass disease is caused by an inherent instability in the chemical composition of the original glass formula. [ 3 ]
Every metric ton (1,000 kg) of waste glass recycled into new items saves 315 kilograms (694 lb) of carbon dioxide from being released into the atmosphere during the manufacture of new glass. [7] But recycling glass does not avoid the remelting process, which accounts for 75% of the energy consumption during production.