Posts made in May, 2019

What is Abrasive Sandblasting?

»Posted by on May 20, 2019 in Blasting | 0 comments

Abrasive sandblasting will create a result that can be both a cleaning and finishing. However, the result of finishing is directly affected by the rigidity of the grit, grit size, speed of blasting, positioning of the gun, distance from the surface to work on, strategy for application and work process.

Dustless Blasting

Most usually, blasting is used more for preparing the surface before finishing it. And it is commonly used to substitute sanding, or other forms of removing a surface stain, paint, coat, or rust and any other unwanted things.

Abrasive blasting can spare 25% to 75% of the time typically required by hand cleaning. And aside from being time-efficient, it is also cost-efficient. There won’t be a need for a big team of professionals. The ratio of man to hours work to clean and finish the project is reduced.

With abrasive blasting, surfaces can become more polished. It increases the adherence of paint, coat, or plating. Here are some aspects of abrasive blasting that you might want to learn about.

Pressure

Basically, there are two types of pressure machines – direct pressure machine and siphon machine. Direct pressure machines don’t need much pressure while the siphon machine is the exact opposite. Each of them has its own pros and cons.

Gun

Blasting abrasively should be a scouring activity, not a peening procedure. For the best results to come out, the blasting gun should be in a 60° to 45° angle to the surface that one wants to blast. If it’s at 90°, peen will happen and will result in poor quality blasting results.

The siphon pressure machine’s gun ought to be kept six inches or more from the surface being blasted. This enables the spray to spread out and reach a bigger zone. Impacting a bigger hover takes into account better cover and results in a more even and engaging finish. Direct pressure blasting machines can efficiently work at separations of one foot or more.

Gun Nozzle

Tungsten and carbide make the best options when it comes to nozzles. Making do with a more affordable, lower quality nozzle will only cost more problems and expenses. In the event that your blower can’t handle the blaster, pick a littler nozzle for the gun. In the event that you have a lot of pressure measured but don’t appear to feel it at the gun, search for a blockage in the abrasive line or something may be stuck in the nozzle.

After every nozzle changes or replacements, don’t forget to change the air jet located at the back of the nozzle. A spent air jet will divert the stream inside the gun and cause the abrasive particles to create a hole inside the gun. On the off chance that you have enough pressure at the gun, yet poor progression of the abrasive particles, your nozzle is spent. There is a gap in the siphon machine’s tube hose. Either that or the texture of the abrasive particles is fine to the point that it won’t stream down to the pickup region.

There’s a lot to learn about blasting as well as its types like dustless blasting, soda blasting, and more. For all your blasting concerns or needs, contact an expert near you.

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