3results about How to "Promote spheroidization" patented technology

The utility model discloses a spheroidizing shaper for graphite, which belongs to the field of graphite spheroidizing and comprises an equipment main body, a driving motor is arranged at the bottom of the equipment main body, and an output shaft of the driving motor is fixedly connected with a rotating shaft; through the arrangement of the spheroidizing assembly, three acting forces of inclined collision, curved surface rolling and reverse shearing are realized, the graphite particles are subjected to curved surface rolling force in the moving process through volute grooves formed in a grinding disc and a base disc and auxiliary teeth on a rotating disc, and spheroidizing of the particles is further promoted; when the spheroidizing device is used for spheroidizing the graphite particles, the particles are subjected to reverse shearing force between the spheroidizing device and the spheroidizing device, the force is beneficial to eliminating burrs and unevenness on the surfaces of the particles, the spheroidized graphite particles are smoother and more round, efficient spheroidizing of the graphite particles is achieved through the synergistic effect of the triple acting force, the spheroidizing rate and the spheroidizing quality are remarkably improved, the number of times of repeated machining is reduced, and the spheroidizing efficiency is improved. And the production cost is reduced.

The invention belongs to the technical field of titanium alloy preparation, and particularly relates to a TC25 titanium alloy bar with high thermal stability and a preparation method and application thereof. The titanium alloy bar comprises the following components in percentage by weight: 6.4%-6.8% of Al, 1.5%-2.5% of Mo, 2.0%-3.0% of Zr, 1.5%-2.5% of Sn, 0.5%-1.5% of W, 0.20%-0.30% of Si, 0.060%-0.090% of O and the balance of Ti and inevitable impurities, wherein the total amount of impurity elements does not exceed 0.2%; by reducing the content of two alpha-phase stable elements of Al and O, the precipitation tendency of an alpha2 phase in the forging process can be reduced, and the plasticity and toughness of the material are improved; the content of O is reduced, so that the embrittlement effect of the near surface layer of the bar is avoided, and the thermal stability of parts is effectively improved; and the contents of Zr, Sn and other elements with low electron concentration are properly increased, and the room-temperature and high-temperature strength is ensured.

This invention belongs to the technical field of automotive steel manufacturing, specifically relating to a green, low-carbon high-strength automotive steel and its preparation method. The invention adds nickel-doped modified niobium carbide to the high-strength steel, dispersing it in the iron matrix to effectively improve the strength and toughness of the steel plate and increase its porosity. Simultaneously, the addition of Ca, Mg, and lanthanum and cerium carbonate as composite refining agents to the alloy melt improves casting quality and mechanical properties. Furthermore, precise control of the composition of elements such as C, Mn, Si, Cr, Mo, Cu, and Ti, combined with hot rolling, cold rolling, continuous annealing, or hot-dip galvanizing processes, enables the material to possess both high strength and excellent porosity.