Patent classifications
C22B9/006
STEEL FOR WIND POWER GEAR WITH IMPROVED PURITY AND RELIABILITY, AND SMELTING METHOD THEREFOR
Provided is steel for a wind power gear with improved purity and reliability. The chemical components thereof comprise, in percentages by mass: 0.15-0.19% of C, ≤0.4% of Si, 0.5-0.7% of Mn, ≤0.012% of P, ≤0.006% of S, 1.5-1.8% of Cr, 0.28-0.35% of Mo, 1.4-1.7% of Ni, and 0.02-0.04% of Al, with the balance being Fe and inevitable impurities. A smelting method therefor comprises adding raw materials to a converter for primary melting, transferring same to a refining furnace for refining, carrying out continuous casting after vacuum degassing, and transferring same to a gas protection furnace for electroslag remelting. According to the present invention, a pure electroslag master batch is obtained by continuous casting, and the purity of the material is further improved by means of an electroslag remelting procedure; and the prepared steel material is used in a wind power gear, such that the flaw detection pass rate is significantly increased, large-particle inclusions in the steel material are significantly reduced, and the inclusions are fine and dispersed.
SIMULTANEOUS DISTILLATION AND ALLOYING
A device for producing a target material from starting material comprises a chamber, at least one trough, at least a first heating element being configured to heat the chamber such that starting material is vaporized, and at least one collecting vessel being configured to receive a condensate that will constitute the target material. The device optionally comprises at least a first source of negative pressure or at least a first supply device being in connection with the chamber being configured to evacuate the chamber or to supply an inert gas to the chamber. The device further comprises at least one condensation device, wherein said condensation device is configured to condensate the vaporized starting material, whereby the condensate is formed, and/or at least a first gate device being in connection with the chamber such, that the starting material is introducible into the chamber via said first gate device.
HYDROGEN, LITHIUM, AND LITHIUM HYDRIDE PRODUCTION
A hydrogen, lithium, and lithium hydride processing apparatus includes a hot zone to heat solid-phase lithium hydride to form liquid-phase lithium hydride; a vacuum source to extract hydrogen and gaseous-phase lithium metal from the liquid-phase lithium hydride; a cold zone to condense the gaseous-phase lithium metal as purified solid-phase lithium metal; and a heater to melt the purified solid-phase lithium metal in the cold zone and form refined liquid-phase lithium metal in the hot zone.
HIGH QUALITY, VOID AND INCLUSION FREE ALLOY WIRE
Disclosed herein is a method of forming an alloy material for use in a wire. The method includes forming a master alloy containing lead and silver; and creating a molten wire alloy by combining the master alloy, additional lead, and a third material in a vessel. The method also includes flowing argon gas through and over the molten wire alloy. The method also includes drawing the molten alloy from the vessel through an actively cooled die, and solidifying the molten wire alloy to form a bar of wire alloy.
Alloy melting and refining method
A method of melting and refining an alloy comprises vacuum induction melting starting materials to provide a vacuum induction melted alloy. At least a portion of the vacuum induction melted alloy is electroslag remelted to provide an electroslag remelted alloy. At least a portion of the vacuum arc remelted alloy is vacuum arc remelted to provide a singly vacuum arc remelted alloy. At least a portion of the singly vacuum arc remelted alloy is vacuum arc remelted to provide a doubly vacuum arc remelted alloy. In various embodiments, a composition of the vacuum induction melted alloy comprises primarily one of vanadium, chromium, manganese, iron, cobalt, nickel, copper, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, silver, tantalum, tungsten, rhenium, osmium, iridium, platinum, and gold.
METHOD AND APPARATUS FOR MANUFACTURING POWDER FOR ADDITIVE MANUFACTURING
The present disclosure relates to a method of manufacturing a powder for additive manufacturing. The method comprises steps of: vaporising a precursor metal material to form a metal vapor, wherein the precursor material includes a metal alloy and inclusions, and vaporising the alloy includes heating the precursor material to a temperature above the boiling point of the metal alloy and below the boiling point of the inclusions; condensing the metal vapor to form a molten metal; and atomizing the molten metal to form a metal powder. The present disclosure also relates to an apparatus for carrying out the method.
Alloy and a method of preparing the same
A novel medium entropy alloy having the chemical formula Mo.sub.xCrNiCo (atomic %) where (x ranges from ˜0.4 to ˜1.0).
Steel for wind power gear with improved purity and reliability, and smelting method therefor
Provided is steel for a wind power gear with improved purity and reliability. The chemical components thereof comprise, in percentages by mass: 0.15-0.19% of C, ≤0.4% of Si, 0.5-0.7% of Mn, ≤0.012% of P, ≤0.006% of S, 1.5-1.8% of Cr, 0.28-0.35% of Mo, 1.4-1.7% of Ni, and 0.02-0.04% of Al, with the balance being Fe and inevitable impurities. A smelting method therefor comprises adding raw materials to a converter for primary melting, transferring same to a refining furnace for refining, carrying out continuous casting after vacuum degassing, and transferring same to a gas protection furnace for electroslag remelting. According to the present invention, a pure electroslag master batch is obtained by continuous casting, and the purity of the material is further improved by means of an electroslag remelting procedure; and the prepared steel material is used in a wind power gear, such that the flaw detection pass rate is significantly increased, large-particle inclusions in the steel material are significantly reduced, and the inclusions are fine and dispersed.
ALLOY AND A METHOD OF PREPARING THE SAME
A novel medium entropy alloy having the chemical formula Mo.sub.xCrNiCo (atomic %) where (x ranges from ˜0.4 to ˜1.0).
SYSTEM FOR SALT REMOVAL FROM URANIUM METAL
According to one aspect of the invention, a system to separate salt from uranium. The system has a vessel, a heater, a pump, and a condenser. The vessel is adapted to receive a uranium that has a salt concentration. The heater heats the uranium for a period of time, causing the salt to turn into a salt vapor and the uranium to melt. The melted uranium releases the salt vapor. The pump circulates an inert gas that carries the salt vapor away from the melted uranium. The condenser is adapted to receive the salt vapor.