Thermal Spray Gun

A cost-effective way for improving surface characteristics is to utilize a thermal spray gun. All common thermal sprinkling techniques are provided, with options to meet your surfacings and other application factors including run size, component scale, environmental concerns, and portability needs. The medium is applied to the subject material using these guns (rod, wire, powder).

What is Thermal Spray?

The coating that is created is not homogenous and typically includes a specific level of porosity, and, in the situation of sprayed metals, the coating will carry oxides of the metal. The raw material may be any substance that can be dissolved, including metals, metallic composites, cement, oxides, glass beads, and polymers. The raw materials can be diffused as powders, wires, or rods. The connection between the substrate and the coating may comprise mechanical, chemical, metallurgical, or a mixture of these. The characteristics of the used coating are dependent on the raw material, the thermal spray process and purpose parameters, and the support method of the applied coating. 

Characteristics of Thermal Spray Coatings

• Hardness, density, and porosity:- Thermal spray coatings are usually used because of their high degree of hardness related to painting coatings. Its hardness and corrosion protection make them particularly important for high-wear purposes. The hardness and thickness of thermal spray coatings are typically cheaper than for the raw material from which the coatings were formed. In the matter of thermal spray metallic coatings, this hardness and density of the coating depend on the thermal spray material, type of thermal spray material, and the spray parameters. Overall, the higher the particle speed, the harder and denser the coating. Particle speeds for various thermal spray processes in decreasing order are discharge, high-velocity oxygen flame (HVOF Gun), temperature, and the kind of atomization gas utilized. The porosity of the coating works on the thermal spray process, purpose parameters, and thermal spray material.
•  Corrosion resistance:- Metallic thermal spray coatings may be both anodic or cathodic to the underlying metal substrate. Because corrosion happens at the anode, anodic coatings will rust in corrosive conditions and the cathode will not. Anticorrosive coating methods are generally created such that the covering element is anodic to the substrate element. Anodic coatings will destroy or reduce to defend the substrate. In some cases, the corrosion protection of the thermal spray element itself is great. For very high-temperature treatments and for chemical publications, the thermal spray coating needs to be highly corrosion-resistant. For such purposes, the coating gives a corrosion-resistant fence to preserve the substrate.

Types of Thermal Spray Gun

There are many types of thermal spray guns-

Metalizing Gun

The metalizing gun takes place with the use of heat in this gun. The metal wire melts into the liquid as a result of the heat. It is then sprayed on the subject’s surface. We can feed rod, wire, and powder into the gun as part of the abrasive media.

Flame Spray Gun

Spraying with a Flame Spray Gun normally simply necessitates the use of low-cost equipment. It may be utilized in both stationary and mobile setups and is appropriate for single-piece and series manufacturing. Corrosion and wear protection are the most common applications. The use of wire or powder is determined by the substance and the rate at which it is applied. The wire is mostly treated with zinc, aluminum, and molybdenum. The majority of metals and strong alloys are applied in powder form.

Arc Spray Gun

With the help of an electric supply anode and cathode, the two-wire arc is generated in this gun. When these wires are touched, a spark is created, which causes the two-wire to heat up. It melts and splatters all over the subject. It’s also known as a Twin Arc Spray Gun or an Electric Arc Spray Gun.

HVOF Gun

The name HVOF stands for High-Velocity Oxy-Fuel Gun. The HVOF Gun is a thermal spray technology that works by burning gasses or liquids. Hydrogen and liquid fuels like kerosene are employed in the combustion process. Within the combustion area, fuel and oxygen combine and atomize under settings that monitor the proper combustion mode and pressure required for coating.

Zinc Spray Gun

Various abrasive media can be sprayed on the topic with this type of pistol. Anti-corrosive abrasives, for example, are often used to protect surfaces from corrosion. The Aluminum spray gun is used more frequently than the zinc spray gun.

Uses of Thermal Spray

• Thermal spray coatings are more accepted for electrical purposes. Conductive elements such as copper slag can be applied to conductors. Ceramic elements may be utilized for electrical packing. Conductive metals are more applied to magnetically shield delicate electronics.
• Very solid and thick thermal spray deposits have been applied on an innovative basis as cavitation tight materials and in combination with weld overlays as a replacement technique.

Applications of Thermal Spray Gun

• The development of process control equipment continues (robotics, motion control, gas pressure technology, real-time sensors, and so on).
• Nondestructive coatings testing and assessment methods have been improved.
• Understanding and optimization of the thin film technique have improved.
• Interpretation and optimization of the cold spray process have been improved.
• Thermal spray formation of components with a near-net shape.
• Spray forming of high-temperature essentials (Tc ) Ceramics made of superconducting oxides

Thermal Spray Gun Manufacturer in India

Micro Blaster is the leading manufacturer of Thermal Spray Gun, spray parts, Products & equipment in Jodhpur, Rajasthan, India.

Only “Micro Blaster” can provide all solutions for Thermal Spray processes & with the application needed for the thermal spray coating. We have proven reliable & promising to our customers that we offer a complete package of Thermal Spray Equipment. Our focus is to improve the Thermal Spray Gun in terms of Efficiency of spraying, Proficiency coating, etc. Some of the parameters we are still working to provide full flesh solutions towards the Thermal Spraying techniques. As we deal in various blast machines such as sand blasting machine & shot blasting machine.