lost foam sand casting_

4. Select the Die Casting Machine Based on the calculated tonnage, choose a machine that can accommodate or exceed this requirement.

In the realm of metal casting, sand plays a vital and often underappreciated role. The use of sand in casting processes is a time-honored tradition that dates back thousands of years, dating from ancient civilizations that recognized its unique properties for creating molds. Today, the process has evolved, but the fundamental importance of sand remains unchanged. This article explores the types of sand used in casting, its characteristics, and the reasons why it continues to be a primary material in foundries around the world.

Creating green sand involves a careful mixing process. First, the silica sand and bentonite are measured in precise proportions, usually around 90-95% sand to 5-10% clay by weight. It's important to ensure the clay is evenly distributed throughout the sand. This is typically achieved by dry mixing the components before adding water.