AEROSPACE
Aerospace Industry makes an extensive use of Ultra-High Strength Steels (UHSS), that present improved mechanical properties, in several aircrafts’ systems. On the other hand, UHSS suffer poor corrosion resistance and have to be coated by electrochemical deposition, the only process capable of applying a very thin protective layer on complex shape component. Furthermore atomic hydrogen formation and absorption in the metal substrate is possible during plating.
In order to avoid H to have a deleterious effect on the steel substrate, a stringent quality control procedure results to be indispensable to assure safety of electrochemically plated steel parts and can be performed using HELIOS Technology.
THE NEW INSTRUMENT FOR ELECTROCHEMICAL HYDROGEN PERMEATION
HELIOS 2 PERMEATION is an innovative laboratory instrument that can measure both permeability and hydrogen diffusion coefficient through metallic steel sheets. HELIOS 2 PERMEATION is suitable for evaluating the effectiveness of barrier coatings for hydrogen flux, which is essential for identifying materials in the new hydrogen economy.
The test is carried out referring to ASTM G148 and ISO 17081 Standards.
The traditional equipment used for this type of experiments is the so-called Devanathan-Stachurski double cell, HELIOS 2 PERMEATION replaces the anodic cell with a probe which contains the hydrogen gas sensor.
HELIOS 2 PERMEATION does not require the passivation preparation of the anodic side of the sample and it can assess also diffusivity and hydrogen flux through the coated samples.
Once acquired, the signal that depends on the hydrogen flux through the examined test sample, is processed by proper mathematical codes (by means of a dedicated panel PC) and hydrogen diffusion parameters are evaluated.
HELIOS 2 PERMEATION is a completely automated instrument!
Letomec offers customized instruments and consultancy to define optimal hydrogen charging conditions (current density, electrochemical solution, re-circulation of the test solution, air circulation, etc.), set-up, which depends on the hydrogen charging side that can be electrochemical or gaseous.
The HELIOS Platform including HELIOS 2 PERMEATION is coverd by the Patent N. EP 2912452 B1.
The instrument can be customized according to the user's need.
THE FIRST NON-DESTRUCTIVE MEASUREMENT OF DIFFUSIBLE HYDROGEN CONCENTRATION WITHOUT ANY SAMPLE CUTTING
HELIOS 4- HOT PROBE is an innovative instrument useful to perform diffusible hydrogen measurements on metallic samples or directly on semi-products or finished components. It consists of a portable equipment and is based on a solid-state gas sensor
The special hot probe can locally heat the sample in order to get fast, precise and repeatable measurement of diffusible hydrogen content in the metal without any damage to the sample itself.
HELIOS 4- HOT PROBE is versatile, it operates with no fixed geometry, moreover, as it is portable, it can perform measurements directly in situ or on production line.
Once acquired, the signal is processed by proper mathematical codes (on by means of a dedicated panel PC), in order to return the diffusible hydrogen content.
Letomec offers a customized probe according to the test samples shape and dimensions.
EP2912452
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PROCESS CONTROL IN FURNACE
HELIOS MAGMA, is an innovative equipment under development. It is meant to achieve a real time monitoring of the furnace atmosphere in order to return an alarm in case of presence of anomalous amount of certain substances. The main aim is the prevention of dangerous situations and production scraps.
HELIOS MAGMA can be applied to:
-Hot Stamping furnace for Automotive Industry;
-Enamelling furnace for home appliance industry.