This disclosure pertains to a system, methods, and apparatus configured for generating singulated metal droplets and collecting powder metal. The system comprises crucible apparatus each including a crucible housing, a gas inlet, and an alloy nozzle. The crucible housing is operatively coupled to an induction heating element and power supply to provide induction heating of the crucible housing and electromagnetically levitate a mass of molten metal. The gas inlet is operatively coupled to a gas supply and configured to receive a pressurized gas pulse via the gas supply, the pressurized gas pulse being directed at the mass of molten metal. The alloy nozzle is configured to release a metal droplet singulated from the mass of molten level due to the pressurized gas pulse. The system includes a powder collection unit configured to collect powder from one or more dispensing channel configured to catch the falling singulated liquid metal droplet.

This disclosure pertains to a system, methods, and apparatus configured for generating singulated metal droplets and collecting powder metal. The system comprises crucible apparatus each including a crucible housing, a gas inlet, and an alloy nozzle. The crucible housing is operatively coupled to an induction heating element and power supply to provide induction heating of the crucible housing and electromagnetically levitate a mass of molten metal. The gas inlet is operatively coupled to a gas supply and configured to receive a pressurized gas pulse via the gas supply, the pressurized gas pulse being directed at the mass of molten metal. The alloy nozzle is configured to release a metal droplet singulated from the mass of molten level due to the pressurized gas pulse. The system includes a powder collection unit configured to collect powder from one or more dispensing channel configured to catch the falling singulated liquid metal droplet.

The present invention relates to an iron-based alloy powder wherein the alloy comprises the elements Fe (iron), Cr (chrome) and Mo (molybdenum) and the iron-based alloy powder is produced by an ultra-high liquid atomization process comprising at least two stages as defined below.

The present invention relates in a first aspect to an iron-based alloy powder containing non-spherical particles and at least 40% of the total amount of particles have a non-spherical shape. The alloy mandatorily comprises the elements Fe (iron), Cr (chrome) and Mo (molybdenum). Furthermore, the alloy may comprise further elements such as C (carbon), Ni (nickel), Nb (niobium) or Si (silicon). The present invention relates, according to a second aspect, to an iron-based alloy powder wherein the alloy comprises the elements Fe, Cr and Mo and the iron-based alloy powder is produced by an ultra-high liquid atomization process comprising at least two stages as defined below.

The present invention relates to an iron-based alloy powder containing non-spherical particles wherein the alloy comprises the elements Fe (iron), Cr (chrome) and Mo (molybdenum), and at least 40% of the total amount of particles have a non-spherical shape. In said iron-based alloy powder, Cr is present at 10.0 wt. % to 18.3 wt. %, Mo is present at 0.5 wt. % to 2.5 wt. %, C is present at 0 to 0.30 wt. %, Ni is present at 0 to 4.0 wt. %, Cu is present at 0 to 4.0 wt. %, Nb is present at 0 to 0.7 wt. %, Si is present at 0 to 0.7 wt. % and N is present at 0 to 0.20 wt. %, the balance up to 100 wt. % is Fe.

This disclosure pertains to a system, methods, and apparatus configured for generating singulated metal droplets and collecting powder metal. The system comprises crucible apparatus each including a crucible housing, a gas inlet, and an alloy nozzle. The crucible housing is operatively coupled to an induction heating element and power supply to provide induction heating of the crucible housing and electromagnetically levitate a mass of molten metal. The gas inlet is operatively coupled to a gas supply and configured to receive a pressurized gas pulse via the gas supply, the pressurized gas pulse being directed at the mass of molten metal. The alloy nozzle is configured to release a metal droplet singulated from the mass of molten level due to the pressurized gas pulse. The system includes a powder collection unit configured to collect powder from one or more dispensing channel configured to catch the falling singulated liquid metal droplet.

This disclosure pertains to a system, methods, and apparatus configured for generating singulated metal droplets and collecting powder metal. The system comprises crucible apparatus each including a crucible housing, a gas inlet, and an alloy nozzle. The crucible housing is operatively coupled to an induction heating element and power supply to provide induction heating of the crucible housing and electromagnetically levitate a mass of molten metal. The gas inlet is operatively coupled to a gas supply and configured to receive a pressurized gas pulse via the gas supply, the pressurized gas pulse being directed at the mass of molten metal. The alloy nozzle is configured to release a metal droplet singulated from the mass of molten level due to the pressurized gas pulse. The system includes a powder collection unit configured to collect powder from one or more dispensing channel configured to catch the falling singulated liquid metal droplet.

A method for producing a water-atomized prealloyed powder with high cold press formability, includes the following steps: (a) preparing a 400 mesh semi-finished prealloyed powder; (b) controlling the semi-finished prealloyed powder to have a moisture content of 1 wt % to 2 wt % and an oxygen content of 0.6 wt % to 0.8 wt %, and then drying in a vacuum drying oven at 100 C. for 90 minutes to 120 minutes, so that a preliminary bond is produced between powder particles; and (c) reducing, annealing, crushing, and sieving an initially bonded powder particle. The powder is changed from a spheroidal shape to more complex shapes such as rice ear shape, grape shape, and satellite powder, which greatly improves the cold press formability of the prealloyed powder; the method only performs simple surface modification of the powder without changing other properties, and has wide applicability.

The present invention relates to a Si-containing high-strength and low-modulus medical titanium alloy, and an additive manufacturing method and use thereof. The additive manufacturing method comprises alloy ingredient design, powder preparation, model construction and substrate preheating, and additive manufacturing molding; wherein the Si-containing high-strength and low-modulus medical titanium alloy is designed in the ingredient proportion of Ti 60-70 at. %, Nb 16-24 at. %, Zr 4-14 at. %, Ta 1-8 at. %, Si 0.1-5 at. %. The principle of the present invention is design of a medical ?-type titanium alloy having high-strength and low-modulus and good biocompatibility by using d-electron theory; reducing the difference of thermal expansion between the silicide and the ?-Ti phase by preheating, and at the same time, ensuring that there is a sufficient degree of cooling in the additive manufacturing process to promote the transition of the alloy from the divorced eutectic reaction to the precipitation reaction, thereby solving the common problems, such as the deterioration of mechanical properties caused by the continuous distribution of the Si-containing phase along the grain boundary and the cracking caused by the difference of thermal expansion coefficient between different phases.

Torpedo cars for use with granulated iron production, and associated systems, devices, and methods are disclosed herein. In some embodiments of the present technology, a torpedo car includes a tilting mechanism, a body rotatably coupled to the tilting mechanism, and a controller operably coupled to the tilting mechanism to control tilting of the body. The body can include (i) an inner surface defining a cavity and a channel, and (ii) an outer surface defining an opening to the cavity and a channel outlet of the channel spaced apart from the opening. The channel can extend between the channel outlet and a channel inlet interfacing the cavity. The inner surface can include a slag dam configured to prevent slag from exiting the opening while the torpedo car tilts. The controller can control the tilting mechanism to control molten metal flow out of the cavity through the channel.