HTS Vacuum Furnaces: Pioneers in Component Maintenance with H-FIC

HTS Vacuum Furnaces: Pioneers in Component Maintenance with H-FIC

HTS Vacuum Furnaces is excited to present our latest innovation, H-FIC (Fluoride Ion Cleaning), a revolutionary thermo-chemical cleaning process specifically designed for the pre-brazing maintenance of turbine components.

The Challenge

Turbine components, both rotors and stators, are exposed to extreme temperatures and significant thermomechanical stresses. These conditions lead to various types of damage, including thermal fatigue cracks, oxidation, and contamination. OEM (Original Equipment Manufacturers) maintenance manuals specify that, prior to any brazing repair, all types of damage such as oxidation, sulphidation, and hot corrosion must be completely removed from the components.

The Solution: H-FIC

H-FIC offers a highly effective method for cleaning turbine components using controlled hydrogen fluoride ions. This process is ideal for removing oxides and deeply embedded contaminants from superalloys containing significant amounts of aluminium and titanium. At temperatures above 950°C, the fluoride ions react with the formed oxides, converting them into gaseous metallic fluorides, which can be easily removed. By adjusting the partial or total pressure, the system pulses HF in and out of cooling channels, cracks, and small holes, ensuring thorough cleaning of oxidised and hard-to-reach areas, which is essential for effective brazing. The thorough cleaning provided by H-FIC ensures that the brazing filler metal can properly wet and diffuse into the base material and the sidewalls of the cracks, resulting in a functional rather than cosmetic repair.

Clean components allow for more effective brazing, improving the structural integrity and reliability of repairs, reducing the need for frequent replacements thanks to durable and reliable elements.

HTS Vacuum Furnaces is also committed to providing continuous support to our clients. Our team of experts is always ready to assist with any technical queries, maintenance needs, and process optimisation. We offer comprehensive after-sales support to ensure that your operations run smoothly and efficiently.

With H-FIC, HTS Vacuum Furnaces reaffirms its commitment to innovation and excellence in the field of industrial maintenance and repair. This revolutionary technology represents a significant advancement in ensuring the performance and durability of turbine components.

For further information and to discover how H-FIC can transform your maintenance processes, do not hesitate to contact us.


HTS Vacuum Furnaces

HTS is an innovative player among the manufacturers of vacuum furnaces: design and production based on the customer’s objectives.