We use machines with inductive and direct heating for rapid consolidation with heating rates of 100 - 300 K/min. Our direct heating technology is also known as SPS - Spark Plasma Sintering or FAST - Field Assisted Sintering. The advantage of our machine is the large manufacturing electrode size of 350 x 350 mm and a processing height of 400 mm.
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Direct hot pressing is, from its beginnings, a well approved and known technology, but the past decades were dominated by devices operated at temperatures of max. 1,400° C and mainly used for the consolidation of wear resistant inserts for cutting wheels, drill bits, or in grinding discs.
SPS (Spark Plasma Sintering) or FAST (Field Assisted Sintering) machines are other commercial names for this technology, typically further developed for hot pressing temperatures up to 2,400° C and even above. The big advantages are the rapid heating rates and the short processing cycles. This does not only lead to cost effective production, but also to interesting effects studied in fine grained microstructure and corresponding properties of the consolidated materials.
Therefore this technique can be effectively used for the consolidation of materials usually difficult to sinter. The technology is especially of advantage for high temperature materials, especially if fully dense or fine grained microstructures in combination with an excellent performance are required.
Direct hot pressing is characterised by a high heating/cooling rate (up to 400 K/min) and therefore offers a very attractive process for economic fabrication of high performance materials.
Are you interested in learning more about Sps Machine? Contact us today to secure an expert consultation!
Single Segment Sinter Pressing is a technology used in the diamond cutting tool industry. RHP sees a big potential for this technology in a wide range of future products and focuses within its research studio austria on further necessary development of this process and equipment. We aspire to reach goals in producing new functional materials and evolution of this technology capable for materials sensitive to oxygen and also address the need of high processing temperatures exceeding on-the-market solutions.
RSP uses a permanently heated steel tool. The sample, which is precompacted in an automated cold press, is put into the hot die and sintered/compacted for 10 - 90 seconds. This procedure results in extremely high heating rates within the sample and a cycle time of seconds before the sintered sample is ejected and optionally quenched. We are looking forward to innovative ideas and realize your product within this fast and economic technology!
Spark Plasma Sintering (SPS) works by the rapid heating of electrically conductive dies by pulsed DC electric currents in a vacuum or inert environment. The equipment can achieve heating rates of over °C /min up to °C, this means it is possible to sinter a huge range of materials to high density in a few minutes. The rapid heating rate combined with high pressure (up to ~1GPa) opens up a new processing window and the possibility of producing new materials with microstructures and properties that cannot be achieved using conventional sintering techniques.
SPS has attracted attention due to its ability to; fabricate nanostructured ceramics, produce textured microstructures in a single processing step, enable the joining of dissimilar materials, and preserve metastable microstructures. As well as being able to sinter structural and functional ceramic materials, we are also able to prepare metallic and composite samples. SPS is a high throughput technique, which makes it ideal for quickly exploring new materials and an energy efficient route for the mass production of materials.
Nanoforce provides small volume niche samples for academic research, as well as high volume samples such as sputtering targets for industrial applications.
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