Thermal spraying of landing gear components
Why You Need To Arc Spray More Often?
Also referred to as metallizing, as well as spray welding, arc spray is simply a way of depositing materials on a surface using either high speeds or high temperatures. If it is a high temperature, this is considered to be a thermal spray which typically uses a detonation gun, flame or arc spray. Here is an overview of how metallizing occurs, and National Alloy Solutions says what industries this is used in today.
Arc Spray Metallizing
Spray welding is an economical and productive way to do thermal spraying, a way of coaching surfaces with different materials. It utilizes a DC power source, one that will allow the user to energize a couple of conductive wires, one of which is going to be negative in the other positive. When these energized wires go through what is called a theater, directly into the gun head, this is where the wires can meet, and they will arc against each other which can melt the material. No matter what type of thermal spraying that you are doing, whether you are doing plasma, high velocity or wire arc spraying, you are going to leave a fragile layer of this material.
How Thick Is A Typical Layer?
The thickness can vary from about a half a mile to four, and the thickness is typically the result of making multiple passes. It requires special equipment to accomplish this helping to prevent injuries from occurring to the person that is using the arc welder who could be anything from burns to blindness. Once the person has chosen a type of material to use which could be zinc, aluminum, or even a type of ceramic or plastic, it will make this material much more resistant to decomposition, which is why this procedure is often done. Click on this WordPress Blog for even more information about spraying!
Safety Precautions To Consider
On the same topic, even though this is the most economical way to do this type of layering, as well as the most productive, it can also be the most dangerous. The sheer volume of materials that can be coated may cause a person to do this type of work for many hours on end, which can lead to significant damage or injuries. Whether they are breathing the fumes, being exposed to the light, or the heat, this can all lead to problematic situations. As mentioned earlier, if the two wires come together, creating the arc, actually put into contact with the person, it could leave them with permanent scarring or damage. Proper gloves, clothing, and goggles must be worn to do this type of work.
Summary Of Arc Spray Coating
In summary, the term arc spray is essentially any process that involves the use of the two hot wires in an attempt to coat a material using powder, a rod, or wire. If the molten powder is used, this is typically associated with plasma arc welding, whereas HVOF uses an oxidized fuel in the form of pressurized gas. No matter what type of arc spray that is done, it must be done under proper safety guidelines in using the right source material. Once completed, the materials that have the coating will last as much as 75 percent longer after they are treated, making this a very popular treatment for certain materials.
#1 Components Of HVOF?
HVOF is a thermal spray that is utilized by many individuals who are wanting to restore their metals and steels. This could be for various reasons. However, this simple spray will help elongate the life of your material for you. Reason as to why so many people are drawn towards this spray is its price. It offers a low price, and in return gives you a great finishing as well as protection of your steels and metals. The majority of the people who use this spray are pleased with the results that come with it. They state that it also improves the performance of the items that they have used it on. Many components go into the making of HVOF that should be looked at to get a better understanding of how it works.
The process that it works with is by using flames it coats the equipment. The flames have a ton of chemicals and ingredients within them that will aid to restore the metal and the steels that you are going to be applying the thermal spray on. It will help restore the material and it make it all better for you to use again.
Speed Plays A Huge Role
Another great component that goes into making HVOD a great big hit is the speed factor. Due to the high speed, it can coat different parts of the material in no time at all. Otherwise, if it took too long, you would be having a very dangerous situation at your hand because flames are not the safest to be working with. However, because the process is so quick it is not something that you need to worry about, and you do not end up harming your material as well. It coats in no time at all.
Reason you should utilize HVOF as a thermal spray rather than the other methods that are also present is because of the heat factor. This process has more heat, which is why it works better. If you are going to be investing both your time and energy, you might as well do it with a spray that will give you the results you want. Due to the high heat, you can seem the restore you want within the material that you are woking with.
HVOF can be bought online or at your hardware store. You may wish to talk to a specialist before you put your hands on this as you are going to be working with flames. You want to make sure you know everything about how it works and how to be safe. If you have any questions, you should talk to a specialist just incase as you do not want to risk your safety. Other than that it is very simple to use and does the trick right away. Make sure you read the bottle for further instruction as they should be listed on there.
Thermal Spray Technologies Available Today?
There is a process that is used when coating certain types of materials in order to improve their longevity, as well as increase or decrease how conductive they actually are. This is called thermal spray, and it is an assortment of techniques in which a particular substance is heated, or melted, and subsequently sprayed onto a particular surface. The coaching precursor also referred to as a feedstock, is made to liquefy using an arc or plasma device. It can also be done by chemical means such as a combustion flame, to get the desired result. Let’s take a look at the different types of thermal spraying that are used today, and the benefits that they provide.
Different Types Of Thermal Spraying
There are several different types of thermal spring which include plasma, flame, warm, cold, and wire arc spraying. These were initially developed back in the early 1900s using a flame that could do what is called wire arc spring at velocities that were extremely low. The raw materials were actually melted into a molten state, and then deposited onto the material, and plasma spraying actually made this much more efficient. Using higher temperatures at about 15,000 K made it possible for a to reels such as oxides to actually be used.
What Do You Need For Thermal Spraying?
There are several things that you will need in order to do this type of work which include a spray gun, a feeder, a type of media, a robot if you are not using a person that can manipulate their torch, and a power supply. There may also be a console that is used an integrated with all of the other materials in order to make the process much more efficient.
Detonation And Plasma Spraying
Plasma spraying uses a type of feedstock which is sometimes in a liquid form, but traditionally with a wire, or perhaps even a powder, that is introduced directly into what is called a plasma jet. This will come from a plasma torch, with the temperatures 10,000 K and above, which will not only melt the material that is going to be applied, but propels it toward the substrate itself. Sometimes the molten drops will simply flatten out, rapidly solidifying. Other times, there will be a long barrel that is used to provide the fuel and oxygen, typically a settling, which is how detonation thermal spraying is done. It is the high kinetic energy that is consistent with the use of these hot powder particles that can build up with each coating. It just depends on how to thick the client wants the coding to be, and the buildup can be several millimeters thick.
Dangers Of Thermal Spray Technologies
There are actually quite a few concerns regarding those that use this technology to spray these materials which include the high intensity light that is involved which could blind to if you are not wearing the proper safety goggles. It is also possible that some of the material may splatter which is extremely hot, causing damage to the skin. If you have the proper safety gear on, these are not an issue, and then there is also the potential of the acetylene tank actually exploding if it is introduced to some type of spark within.
Thermal spray technologies have come a long way in the last few decades. They are being used on a much larger scale as new and innovative products are created. You can find out more about these at websites where companies do this every day, and find out how they can help you if you need to have this type of process done on the products that you sell from your business.