Virto-Cuccolini on TCT Magazine | EU | Volume 27 Issue 5

Here is our ad on TCT Magazine | EU edition | Volume 27 Issue 5

VIRTO changes the screening game.

YOU CAN RECEIVE OUR FREE ADVICE TO SELECT THE TYPE OF SIEVE MORE SUITABLE TO YOUR PROCESSING NEEDS, BY CONTACTING US




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    Titanium counts for being one of the most versatile materials in today’s industrial applications. The winning connection between titanium powder and 3D printing makes it now even easier to produce components within challenging contexts.

    Titanium is a light and durable material at the same time. It resists corrosion and is easy to incorporate into metal alloys so that it can be applied as structural metal in automotive, aerospace, building and medical industry. 3D printing, in particular, is pushing the use of titanium to new limits, where very fine particles are bound together to form components with unique, unprecedented shapes.

    This is where Virto-Cuccolini’s X-Line disruptive multi-frequency sieving technology comes into play.

    We know how essential it is for metal powders producers to classify their product into targeted offers for each specific 3D printing application.

    That’s why Virto-Cuccolini’s X-Line sieves range is continuously evolving to respond to this need with a sieving system reaching the finest required particle sizes – like 75, 45, 25 and 11 µm.

     

    By definition, fine particles usually tend to clog sieving meshes, making it impossible to guarantee sieving efficiency over time. X-Line’s multi-frequency technology, able to keep the mesh clean over time, acts as a game-changer, freeing the sieving process from its natural obstacles and obtaining exceptional results.

    Create new metal powders products with X-Line multi-frequency technology! Contact us and discover how we can support you!




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      Our metal powders expert, Asad Bilal, will give a speech at TCT Show 2019 in Birmingham on Sept 24th!

       

       

      You can join his workshop “Sphericity of Metal Powders Cause Blocking of the Sieve-Mesh” from 01:30 pm until 04:00 pm at the Tech Stage – E40.

       

       

      Registration to the show is free at this link: https://rapidnews.circdata-solutions.co.uk/Microsites/RFG/publish/TCT19/

       

      Would you like to get in touch with Asad Bilal? Fill in below form and contact us!




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        For the purpose of industrial screening, particle shape does make a great difference in terms of efficiency. Let’s discuss this well-known issue with Asad Bilal, our expert in metal powders screening:

         

        Q: Why is particle shape such a key factor within metal powders screening:

        A: Irregular shaped particles represent a major hurdle within powder sieving. In facts, they tend to wedge into the mesh aperture, indipendently of their main dimensions. In some other cases, very fine particles accompanied by dust may tend to coat the mesh due to electrostatic forces or due to the product itself, tending to agglomerate.

        Particles with irregular shape tend to wedge within the sieve mesh aperture

        Fine powder particles coating the mesh

        In the context of metal powders sieving, particles morphology directly impact on the final product’s features, such as its near net shape, its porosity degree, its flowability and finally on the properties of the alloy and its behaviour during its application.

        It is for sure important for metal powders producers to have perfect control on the particle shape of their products in order to ensure accuracy and predictability of final product quality in HIP, MIM, EBM or SLM process.

        Q. And what happens if particle shape is spherical?

        A. Following recent improvements within atomisation technology, we experienced that the sieving – as well as the blending – phase is encountering difficulties due to the spherical shape of particles.

        Innovation in atomising technology creates spherical particles, difficult to sieve and blend

        The difference between a fine wire mesh and a thicker wire mesh within the context of sieving.

        Another issue can come from the type of mesh installed in the sieve. The mesh wire size in facts can have some influence on the possibility for each particle to pass or not the mesh aperture, hence on the flowrate, since it has an impact on the total open surface area. On the other hand, meshes are now manufactured with far more accuracy than in the past, which means that sieving efficiency is also more directly connected than earlier to the required cut point.

        Q: Which solutions do you recommend for obtaining maximum sieving accuracy?

        A: At Virto-Cuccolini, we have a long experience in powder sieving. We do apply different sieving technologies based on Customer’s requirements in order to offer the widest possible range of solutions for their sieving needs: traditional vibrating sieving, ultrasonic sieving and multi-frequency sieving. Based on the hundreds of tests carried out on behalf of global metal powder producers in the recent years, we can confirm that the best combination of quality parameters was given by our patented Multi-Frequency X-Line Technology, also in case of spherical particles. Ultrasonic sieving – with expansion and contraction of the mesh in order to facilitate particles flow – is not able to guarantee sieving accuracy within a field of application – metal powders – where fine size is a must now. Moreover, this method is slowing down the sieving process and makes it in the end less productive than needed. We at Virto-Cuccolini, based on our accumulated know-how, investigate Customer’s specific application and context each time to check each key parameter, such as: core principle of mechanical sieving, selected mesh and its properties, particle size distribution (PSD) of Customer’s product, its bulk density, the impact of gravitational force on the product, the coefficient of friction between mesh and powder, the effect of vibrational forces produced by our sieving equipment.

        It is with almost two decades of dedicated study and research, that we came  to the solution – which we proudly confirm even now – of X-Line Multifrequency-Technology sieving equipment. Each one of the typical sieving issues, including sphericity of the powder, was tested and overcome through our multi-frequency sieves, in the range from 10 to 350 µm. We are glad to invite our Customers to carry out sieving tests and compare X-Line performance with that of their current sieve, to find out how easy the sieving process can be. 

        VIRTO changes the screening game.

        YOU CAN RECEIVE OUR FREE ADVICE TO SELECT THE TYPE OF SIEVE MORE SUITABLE TO YOUR PROCESSING NEEDS, BY CONTACTING US




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          Metal powder screening with particle size below 50 µm is a big challenge in the creation of new alloys, as our Asad Bilal is explaning in his article published by Elsevier, most of all now that the demand for finer powders with the aim to widen and diversify metal powder products range is pushing technological innovation in the field of industrial screening.

          In order to obtain competitive metal powder products in line with high quality market demand, critical points are represented by screening throughput rate and efficiency.

          Virto-Cuccolini overcame the limits shown by other screening systems and even by traditional vibrating sieving equipment through the X-Line series, which is capable to screen particles with dimensions included between 1000 µm and 6 µm.

          Patented multifrequency technology MFV Excite, based on the more than 100 performed tests (with gold, silver, copper, titanium, tungsten, atomised aluminium powders, carbides, cobalt, nickel, stainless steel etc.) – which we still perform for new specific cases – widely showed to be able to efficiently screen superfine and/or irregular shaped metal particles, as well as humid, sticky, agglomerating and clogging products. The vibrating movement produced prevents in facts the clogging of the mesh, produced in resistant materials even for the superfine screening, and allows to obtain a fluid transition of the product.

          Here is an example of a test carried out on zinc powder with cut point at 34 µm:

          We are proud to actively contribute in the creation, for our Customers in metal industry, of new product lines for metal powders. Based on their own success, we are proud to give our contribution in creating new metal powders product lines, and through this, having a role in technological innovation for the production of electrical batteries, any type of 3D printed component, more and more efficiently performing additives.

          Would you like to discover more about X-Line technology? Contact us, we are at your disposal also to perform tests.

          CUCCOLINI is always unique and original.

          You can receive our free advice to select the type of sieve more suitable to your processing needs, by contacting us




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