エスエスシー Company Profile

Development of new functional coatings through the development of a new thermal spraying device and powder supply system via joint research.

SSS Co., Ltd. is a company specializing in contract processing of thermal spraying, primarily focusing on HVAF thermal spraying. HVAF uses combustion gases from kerosene and compressed air as the working gas. Because the combustion temperature is low, when spraying cermet (WC-based) materials primarily aimed at wear resistance, by using HVAF, by-products such as W2C, which typically occur with HVOF, do not form. If the temperature of HVAF can be lowered to the temperature range of cold spray or warm spray, it can reduce operating costs since it does not use industrial gases. However, liquid fuels have a narrower range for maintaining stable combustion compared to gaseous fuels, making it difficult with existing thermal spraying equipment. To address the above issues, we developed "Low-Temperature HVAF for Thermal Spraying" through joint research with Oshima National College of Maritime Technology. The working gas temperature can be adjusted between 450 and 800°C. Since we do not use industrial gases, we have a cost advantage. Additionally, there is a challenge in the stable supply of fine powders below several micrometers in dry spraying. To solve this problem, we are conducting joint research with Oita National College of Technology. Although practical application is still pending, a prototype has been completed, and it has reached a stage where it can be tested without issues in our in-house contract processing.