ferrous products
⇲ IRON AND CAST IRON PRODUCTS
- non ferrous products
⇲ NON-FERROUS PRODUCTS

ALUMINIUM

After years of deepened research on the topic of non-ferrous alloys melt quality control, Duedi S.r.l. designed and developed a whole new system based on solidification thermal analysis that is able to check the quality of the melt according to the casting procedures of foundries. Within a few minutes all the main quality criteria are checked with our innovative Patented system.

Precise estimation of different quality control aspects of Aluminum alloys give the possibility to control 2 important group of variables: Firstly, the amount of modifiers and the amount of alloying elements can be checked and controlled by our system. Secondly, with our system foundries are able to check the quality of the molten metal for casting in mould with different thickness and different critical casting sections. Moreover, the susceptibility of the molten material to produce macro and microstructural defects as hot tearing, segregations and other important structural defects can be detected.

Our innovative equipment can be adapted to real cooling condition for simulating the solidification situation inside of the mold. With this innovative method, microstructural characteristics of the solidified parts are precisely estimated. Our system is fully flexible and can check all aspects of final industrial parts quality control online.

The new system will be available for foundries and research departments soon.

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DUEDI’s R&D department is honored to announce officially that on 29/08/2022 the PATENT IT 102020000014695 (PCT) – APPARATUS FOR THE ANALYSIS OF NON-FERROUS METAL ALLOYS AND PARTICULARLY FOR ‘S.T.A.’ TYPE ANALYSES, A SYSTEM FOR THE QUALITY CONTROL OF LIGHT ALLOYS COMPRISING SUCH APPARATUS AND A METHOD OF OPERATION OF SUCH APPARATUS has been released.

After years of development of solidification thermal analysis as an online method for monitoring the melt quality of nonferrous alloys, a whole new system based on a nonequilibrium thermodynamical approach has been developed at the industrial level for the first time for nonferrous alloys.
In the last years, the main goal was to develop a unique combination of hardware and software that could guarantee the high reproducibility and sensitivity of the measurements.

The system named “TAL” is currently passing the last stages of development and quality assurance which can accurately detect all solidification events during the analysis. This revolutionary online method is designed to detect even slight changes in melt quality in less than 5 minutes, which is a breakthrough in technological advancement in melt quality control of nonferrous alloys.

Some of the key output data of the system are briefly described below:

  • Chemical compositional data of main alloying elements based on alloy under evaluation (e.g., Silicon, Boron, Titanium, Strontium, Copper, Magnesium, etc.)
  • Microstructural characteristics (e.g., the effectiveness of the grain refiner addition, silicon modification level, etc.).
  • Iron contamination level and intermetallic compounds weight percentage and shape.
  • Percentage of various precipitates based on the alloy under examination.

The system is developed focusing on the simplicity of acquisition and on the ease of perception of the measured parameters.
The processing procedure consists of:

  1. Automatic acquisition at the pouring of the melt inside the chamber.
  2. Automatic ejection of the solidified part after the end of data acquisition.
  3. Removal and numbering of the solidified part.
  4. Possibility of new acquisitions.