SS-PREP® EP693 Prealloy Spherical Powder

SS-PREP® EP693Prealloy Spherical Powder

Supreme-Speed Plasma Rotating Electrode Process (SS-PREP®)is the method for producing metal powders where the end of a metal bar is melted while it is rotated about its longitudinal axis. Molten metal is centrifugally ejected and forms droplets that solidify to spherical powder particles. The electrode is melted by non-transfer plasma with over 30000 Revolutions Per Minute (RPM) rotating speed. Causing about 20-50microns thickness of melting area, powders possess better chemical uniformity for every particles. There is no big chemical gap among different particles. 

Additionally, high RPM is able to obtain 15-150 microns powder which can be categorized into 15-53μm, 45-106μm, and 45-150μm for SLM, EBM, and DED applications, respectively. Alloy types containsTitanium, Nickel (Inconel, Hastelloy, Monel…), Steel (316L, 304, 17-4PH, 18Ni300…), Duplex Steel, High-nitrogen Steel, and Aluminum.

Currently, Sino-Euro has prepared EP693 prealloy spherical powder. EP693 (ЭП693) is a nickel-based alloy. Strengthened with elements such as cobalt, tungsten, aluminum and titanium, EP693 can be used for long-term below 900 °C, and the maximum working temperature up to 1000 ° C. The alloy is stable in structure and has excellent hot and cold processing and welding process properties, and is suitable for manufacturing high temperature bearing welded structural parts such as aero-engine combustion chambers and afterburners. Fig. 1 and Fig. 2 displays the properties and chemistry of EP693powder. As for 15-45μm powder, Hall flow speed with 2.5mm calibrated orifice is 13.1s/50g, and apparent density is 4.92g/cm3. 

Figure 1 The COA of EP693prealloy spherical powder launched by Sino-Euro.

As for 75-150μm powder, Hall flow speed with 2.5mm calibrated orifice is 14.2s/50g, and apparent density is 4.91g/cm3.

Figure 2 The COA of EP693prealloy spherical powder launched by Sino-Euro

Figure 3 SEM morphology of EP693prealloy spherical powder

Sino-Euro Materials Technologies of Xi’an Co., Ltd.(Sino-Euro) is a subsidiary company of NIN Group(www.c-nin.com). The capital investment is about 15 million US dollars. Sino-Euro is specialized in powder metallurgy, Prealloy Spherical SS-PREP® Powder, Additive Manufacturing Wire, Bar & Substrate, and HIP service & components. Sino-Euro has been authorized with AS9100D, ISO9001 and ISO13485 Quality Management System.