Advantages of Thermal Spray Technology

       Advantages of thermal spray technology

1. The equipment is portable and can be constructed on site.

2. The process is flexible and the operation procedures are few. Can be repaired quickly and reduce processing time.

3. Strong adaptability, generally not limited by the size of the workpiece and the site.

4. The coating thickness can be controlled.

5. In addition to spray welding, the heating temperature of the base material is low, the deformation of the workpiece is small, and the changes in metallographic structure and performance are also small.

6. It is suitable for parts of various base materials, and various protective coatings and functional coatings can be prepared on the surface of almost all solid materials.

Features of Thermal Spray Technology

From the analysis of the principle and process of thermal spraying technology, thermal spraying technology has the following characteristics.

1. Due to the wide temperature range of the heat source, the coating materials that can be sprayed include almost all solid-state engineering materials, such as metals, alloys, ceramics, cermets, plastics and their composites. Therefore, it can endow the substrate with a surface with various functions (such as wear resistance, corrosion resistance, high temperature resistance, oxidation resistance, insulation, heat insulation, biocompatibility, infrared absorption, etc.).

2. The heating degree of the surface of the substrate during the spraying process is small and can be controlled, so it can be sprayed on various materials (such as metal, ceramics, glass, cloth, paper, plastic, etc.), and the organization and performance of the substrate There is almost no influence, and the deformation of the workpiece is also small.

3. The equipment is simple and the operation is flexible. It can not only spray large areas of large components, but also spray the designated parts; it can be sprayed indoors in the factory or constructed on the outdoor site.

4. There are fewer procedures for spraying operation, shorter construction time, high efficiency and more economical. With the improvement of thermal spraying application requirements and the expansion of the field, especially the progress of spraying technology itself, such as the increasing energy and sophistication of spraying equipment, the gradual increase in the variety of coating materials, and the gradual improvement of performance, thermal spraying technology has achieved great success in the past ten years. The rapid development has not only greatly expanded the application field, but also the technology has developed from the preparation of general protective coatings in the early stage to the preparation of various functional coatings; from the maintenance of a single workpiece to the manufacture of a large number of products; from a single coating Preparation has developed to spray system engineering including product failure analysis, surface pretreatment, coating material and equipment development, selection, coating system design and coating post-processing; it has become a very active discipline in the field of material surface science. And in the modern industry, independent material processing technologies such as casting, forging, welding and heat treatment are gradually formed. It has become an important technological means for the industrial sector to save valuable materials, save energy, improve product quality, extend product service life, reduce costs, and improve work efficiency, and has been more and more widely used in various fields of the national economy.