The process of removing undesirable materials from the surface of a metal is known as shot Blasting. This process makes use of air guns and rotating paddles. Depending on the type of material that has accumulated on the surface of the metal, different materials are used to blow. It is used in the removal of materials such as paint, rust, etc. Surface, materials such as sand, tiny steel balls, silicone, etc. are used.
Blast cleaning uses various materials such as water, air, ice, sand, glass, and baking soda. With an adequate pressure setting, all materials can be used to remove the residues on the surface of the required material.
With regard to finishing and cleaning operations, the shot blasting surface treatment technique is a very effective option. The blasting technique uses high speed steel abrasives in a controlled manner. This high-speed controlled jet creates an abrasive impact that removes contaminants from the surface, which makes it an effective method for cleaning iron, steel, forgings, machine parts, accessories, etc. You must know this technique.
Shot Blast Machine: Types of Abrasive Supply Options
Blasting techniques use two different methods to reinforce steel shot. The criteria for choosing the appropriate technique will be based on the area of application, such as surface condition, finish specifications, etc. Here are two abrasive supply options that you can choose according to your requirements:
Compressed air (pneumatic): this sanding option is ideal for low production applications. Here, compressed air is used to speed up steel shots. These systems are quite flexible because the shots can be directed horizontally. It is particularly suitable for finishing welds and steel frames, eliminating the need for hand tools.
Centrifugal Turbine: Centrifugal wheel technology is a more commonly used and economical option for finishing and cleaning. The abrasive blows are propelled in a specific direction at a speed and a quantity controlled by means of a centrifugal turbine. This type of sander can use one or more turbines. The power of the centrifugal turbine used will depend on the degree of cleaning required.
Shot Blast Technique: Tips and Precautions
Here are some tips and precautions to consider when blasting:
1. An incorrectly adjusted control cage can cause considerable damage to the machine, which can be very expensive.
2. If the turbine is worn out, not only will this increase the overall cleaning time, but it could also cause costly machine damage.
3. Adding abrasives in an incorrect report will result in longer sanding times and a rougher finish. An incorrect addition may also result in significant relief of surface texture.
Shot blasting is commonly used for industrial purposes to clean the metal surface, which includes several techniques such as:
• Grit blasting: A method used to scrape the smooth metal surface using sandy sand particles as a propellant.
• Abrasive blasting: includes the use of air, sand or water at a very high force. This type of method is commonly used to polish the surface of the metal.
• Bread Blasting: uses small glass particles as propellants instead of water or sand. It is used to clean soil stains and also to clean cars and pools.
For a perfect blast cleaning, you need an expert at your side. This involves the projection of harmful materials such as small glass particles. Therefore, you must take all precautions before the start of the screening.