Metal sandblasting, also known as abrasive blasting or grit blasting, is a surface preparation process that uses abrasive materials propelled at high velocity to remove contaminants, rust, or coatings from metal surfaces. Here's a simple explanation:
Preparation:
The metal surface is prepared by cleaning and masking any areas that should not be blasted.
Abrasive Material:
Abrasive materials, such as sand, grit, or shot, are used as the blasting media.
Blaster Equipment:
A sandblasting machine or nozzle is used to propel the abrasive material at high speed onto the metal surface.
Impact and Removal:
The abrasive particles impact the metal surface, removing rust, paint, scale, or other contaminants.
Cleaning and Roughening:
Sandblasting not only cleans the surface but can also create a rough texture, improving adhesion for coatings or paints.
Dust Collection:
Dust and debris generated during the process are collected to maintain a clean working environment.
Types of Sandblasting:
Different techniques include bead blasting, shot blasting, and soda blasting, each with specific applications.
Applications:
Used in various industries for preparing metal surfaces before painting, coating, or welding.