A Linde paper to be presented at this year’s International Thermal Spay Conference and Exposition held at the Long Beach Convention Center in Long Beach, California, May 11- 14.

The paper will discuss why more and more thermal spray applications on high performance substrates require the use of special cooling methods to increase the cooling efficiency and, in turn, optimize the process.

“Whether a substrate should be cooled – and with what – has been a topic of discussion for some time,” says Werner Kroemmer, project manager, thermal spraying for Linde AG, in his paper: The Importance of Temperature Management in Thermal Spraying and the Respective Advantages of CO2 for Cooling.

“On the one hand, it is not necessary for all applications, but it may be very important in other cases,” Kroemmer said. In his paper, he provides details on when the use of CO2 is required, including several examples which show clearly that cooling should be seen as an important parameter in the application as a whole.

Linde will also have a booth (#1515) at the Exposition, where Linde engineers will be available to discuss cold spray applications. “Linde has been a major player in the thermal spray market for decades and offers a variety of process and equipment solutions under the LINSPRAY® trade name,” says Jim Stanley, program manager, Manufacturing and Industrial Applications for Linde LLC in North America.

According to Kroemmer, Linde prototypes and conducts feasibility studies in its application technology center for clients, using all classic coating technologies. “We also continually work to develop new coating processes, such as cold spray, along with the required optimized supply equipment,” he said.

Cold Spray is a process of producing coatings on a metallic or dielectric substrate utilizing a high velocity jet of small particles accelerated by expanding compressed gas such as CO2. Cold spray coatings have extremely low amounts of oxidation and are exceptionally dense.

“New applications are being developed constantly,” said Kroemmer. “Current uses are found in the medical, aerospace, automobile and electronic industries for, among other things, protection against high temperatures, corrosion and wear. An ongoing objective of the gas industry is to offer the user hardware which not only exploits all the advantages of CO2, for example, but which is also suited to new applications.”

Conference attendees can hear Kroemmer’s presentation in the morning session on Wednesday, May 13. Kroemmer will be available during the Q&A session as well as at the Linde booth.