News Category Home > Industry News

The 21st century development status of thermal spraying technology in surface engineering

Views : 1147
Author : Pei ze technology
Update time : 2019-07-01 10:17:18

    Surface engineering is a systematic engineering that changes the morphology, chemical composition, organization structure and stress state of solid metal surface and non-metal surface through surface coating, surface modification or composite treatment of various surface engineering technologies after surface pretreatment, so as to obtain the required surface properties.

    At the end of the 20th century, thermal spraying technology developed rapidly and was quickly popularized.By the end of the 20th century, plasma spraying was still dominant.It is worth noting that high-speed flame spraying (HVOF) is growing rapidly and will account for 25% of the market, ranking second.Arc spraying technology, because of its good economy and better coating performance than flame spraying layer, will replace part of flame spraying technology to the third place.

 

    Thermal spraying technology is an important branch of surface engineering, it is through the flame, arc or plasma and other heat sources, some linear and powdery materials heated to molten or semi-melted state, and will accelerate the formation of droplet high-speed spray to the substrate to form a coating.The coating has excellent properties such as wear resistance, corrosion resistance and high temperature insulation, and can repair the size reduction caused by wear, corrosion or machining error.The application of thermal spraying technology mainly includes four aspects: long-term anti-corrosion, mechanical repair and advanced manufacturing technology, mold making and repair, and manufacturing special functional coatings.At present, thermal spraying technology has been widely used in almost all industries and household products (such as non-stick cooker, infrared health care electric heater, etc.).

    Surface engineering integrates the basic theory, technology and latest achievements in many fields.Surface engineering technology in manufacturing base material surface with a layer of coating or film, or through the surface modification with many special properties, make the surface of the material performance is better than that of matrix material greatly, not only can greatly extend the application field of substrate material, and solved in the field of many materials can meet environmental requirements of the subject.Surface engineering technology plays an irreplaceable role in solving common problems of resources, energy and environment in human development.

    The surface engineering technology saves energy and materials, thus protecting the precious resources that human beings rely on for survival, and plays a very key role in environmental protection.Surface engineering technology will permeate all walks of life in the 21st century, promoting social civilization and improving the quality of life.

 

Harbin peize material technology co., LTD

July 1, 2019