Seattle, Washington (PressExposure) June 11, 2008 -- Green Sand Information and stats on the various types of Casting Sand and Foundry Sand can now be found at a new section on Metal Casting website that is all about Green Sand and what you need to cast sand. The new Green Sand section can be accessed by users and non-users by visiting the following web address: http://www.metalcastingzone.com/casting-sand/.
Here is an excerpt from the Green Sand section page on Metal Casting Zone:
âGreen Sand: Green sand is also called as foundry sand or molding sand. This is utilized for sand casting. When this sand is oiled or moistened, it has a tendency to pack well and retain the shape. Green sand is a mix of pulverized coal, water, bentonite clay and sand. Out of these four components, the biggest part is that of the sand. There are several proportions of these four components. The different ratios are used to adjust the surface finish, moldability and capacity of the hot molten metal to degas. The prime use of this sand is in the metal casting. The coal is usually called as sea coal in foundries. The amount of sea coal is less than 5 percent. It undergoes partial combustion when there is molten metal present and this causes offgassing of organic vapors.
Green sand is stored in flasks (as the casters call the container). These are boxes that do not have a bottom or lid. This box is divided into two half parts and these are connected together. These halves are called as the top or cope and bottom or drag flask.â
The new Green Sand webpage is there to provide users with all of the information they need on the Casting Sand and learning the basics of Casting Sand. It can be visited for free at: http://www.metalcastingzone.com/casting-sand/. This new section of Green Sand information will continue to be updated with the latest and greatest information on the basics of Casting Sand at: http://www.metalcastingzone.com.