
Quenching oil plays an important role in industrial heat treatment. Its cooling characteristics affect heat transfer during quenching and can influence the hardness, distortion, and consistency of treated components. For this reason, standardized cooling curve testing is widely used to evaluate quenching oil performance. Two important methods in this field are ASTM D6200 and ISO […]
Quenching oil plays an important role in industrial heat treatment. Its cooling characteristics affect heat transfer during quenching and can influence the hardness, distortion, and consistency of treated components. For this reason, standardized cooling curve testing is widely used to evaluate quenching oil performance. Two important methods in this field are ASTM D6200 and ISO […]


Quenching oil plays an important role in industrial heat treatment. Its cooling characteristics affect heat transfer during quenching and can influence the hardness, distortion, and consistency of treated components. For this reason, standardized cooling curve testing is widely used to evaluate quenching oil performance. Two important methods in this field are ASTM D6200 and ISO […]
Since 1994, Zhengzhou Kehui technology has been providing customized automated turnkey welding solutions throughout the world, Our technology product are designed, developed and fabricated exclusively by Kehui technology to ensure optimum compatibility. Our technical solutions are designed to seamlessly integrate robots, welding equipment, automated welding lines, servo control positioners, intelligent work cells and software. From 2014, Kehui technology is a listed company (stock code: 831045) that has certified by the lSO9001CE and CU-TR certifications.




Providing industrial upgrading services to more than 200 international companics
300 welding experts in 4 province ofChina work with customers to detemmine the best combination of components for their specific needs.
41 patents and 11 software copyright register certificates.
Since 1994, Zhengzhou kehui technology has been providing customized automated turnkey welding solutions throughout the world.