Categories of Thermal Spraying Technology and Related Application Industries？-Xike (Yancheng) Surface Coating Technology Co., Ltd.

Thermal spraying technology is a method used to extend the lifespan of products by protecting them from volatile environmental influences. There are various thermal spray powders and application processes available in the market, such as tungsten carbide spraying technology. Here, we will explore different types of thermal spray powders.

Types of Thermal Spraying Technology

Corrosion-Resistant Thermal Spraying:
When it comes to metallic coatings, there are two basic categories: engineering coatings and decorative coatings.
- Engineering Coatings: These can refer to barrier coatings or wear-resistant coatings, such as tungsten carbide coatings.
- Decorative Coatings: These may include decorative or anti-corrosion coatings.
The metal spraying engineering and corrosion protection markets encompass industries including construction, petrochemical, marine, and oil and gas.
Metal Thermal Spraying Process:
In metal thermal spraying, small molten particles are projected onto a surface in a continuous layer and adhere to it. While the concept is straightforward, the actual process is much more complex, involving atomization methods, spraying materials, and heat source technologies.
Common Metal Powders:
Different industries utilize various types of coating materials. Some commonly used metal powders include:
- Tungsten carbide powder
- Zinc powder
- Tin powder
- Black and red copper oxide
- Nickel powder
- Manganese powder
- Iron powder
- Granular copper
- Cadmium oxide powder
- Bismuth powder
- Aluminum powder
The particle size distribution for these powders can vary significantly depending on their applications.
Non-Metallic Materials:
Not all thermal spraying involves metal powders. Although thermal spraying processes are typically associated with metal powder spraying, non-metallic materials such as plastics, ceramics, alloys, and composites can also be thermally sprayed onto surfaces.

Increased particle velocity generally correlates with improved coating quality. Various measurements are used to evaluate coating quality, including surface roughness, adhesion strength, micro and macro hardness, oxide content, and porosity.

Variants of Thermal Spraying Technology

In addition to the various materials that can be thermally sprayed, there are many variants of thermal spraying technologies. These include:

Cold spraying
Warm spraying
Air-fuel (IA) spraying
High-velocity oxy-fuel (HVOF) spraying
Flame spraying
Wire arc spraying
Detonation spraying
Plasma spraying

Industries Utilizing Thermal Spraying Coatings

The applications of thermal spraying technology are extensive and may be broader than you might think. It has permeated many aspects of our lives. Below are some industries that utilize thermal spraying technology: