Technology Parameters for Sandblasting Room
Sandblasting is a fast and effective method of surface preparation that can be applied to a wide range of materials. In the industrial sector, sandblasting is used to clean and treat metal parts. The process of sandblasting offers numerous benefits over traditional methods of surface preparation such as grinding and polishing. The process is cleaner and requires much less effort and less time to complete.
The sandblasting room consists of several pieces of equipment that work together to produce a clean, uniform finish on the metal parts. Many of the components that make up a sandblasting room are not often visible to the untrained eye, so it is important to understand the technology parameters for the finer details of the system in order to optimize its performance.
The first step in a sandblasting room is to select the correct blasting media. The media should be chosen according to the specific requirements of the project. Different abrasive media are available, including sand, aluminum oxide, steel grit, and glass beads.The blasting media selection depends on the material being treated, the finish desired, the abrasiveness of the media and the size of the parts being treated.
Once the blasting media is selected, the next step is to determine the air pressure of the sandblasting chamber. The air pressure should be adjusted until the desired finish is achieved.Typically, the air pressure should be between 60 and 90 pounds per square inch (psi). Sandblasting systems typically use compressed air as the power source.
The next important parameter is the micrometres or blast pressure, that is, the amount of pressure applied to the parts during the sandblasting process. The optimum blast pressure depends on the material being treated and the desired finish, but a minimum of 80 to 120 psi is normally used for most applications.
The fourth parameter to consider is the particle size of the blasting media. Particle size is measured in microns, with finer particles achieving a smoother finish than larger particles. Generally, particles ranging in size from 40 to 110 microns are most effective for achieving a uniform finish.
The final parameter to consider is the length of the sandblasting cycle. This is the time required to clean and treat the parts in the sandblasting room. Usually, parts treated with steel grit take a longer time to be treated, while parts treated with aluminum oxide or glass beads require a shorter amount of time.
It is important to ensure that the above parameters are set correctly in order to optimize the results of the sandblasting process. Selecting the correct blasting media, establishing the correct air pressure, determining the correct blast pressure, choosing the correct particle size, and setting the correct sandblasting cycle time are all important factors for achieving the desired results. When all of these parameters are properly set, a sandblasting room can offer an efficient, reliable and cost effective solution for surface preparation of metals.
