2results about How to "Improve the distribution pattern" patented technology

The invention relates to high-strength anti-cracking GH3536 alloy powder for additive manufacturing based on niobium-lanthanum synergistic modification and a preparation method thereof, and relates to the technical field of powder for metal additive manufacturing. Niobium is added in the mother alloy smelting stage, lanthanum is excessively added for deep purification, and harmful impurities are removed; then, according to the atomization powder manufacturing process type, the time for adding the lanthanum element for the second time is accurately selected; in the solid electrode atomization process, adding is compensated through vacuum self-consuming remelting in the process of preparing a solid alloy electrode bar; the molten metal atomization process is added after alloy liquid is melted down and before atomization is started. Through step-by-step accurate regulation and control, the lanthanum content in the final powder is in a proper range, the formation of grain boundary continuous brittle carbides is effectively inhibited, the crack resistance is improved, meanwhile, the niobium element generates fine carbides in situ to play the roles of fine grain strengthening and dispersion strengthening, and the tensile strength of the material is improved.

The utility model discloses a vertical type strong solution micro -nano gas dissolving device, including base, the base both sides are equipped with first gas dissolving tank and second gas dissolving tank, first gas dissolving tank with second gas dissolving tank opposite side all are equipped with the air distribution subassembly for the even delivery air to the gas dissolving tank, first gas dissolving tank outer wall one side is connected with equal diameter tee, and the equal diameter tee lower side port is equipped with first water inlet pipe, and the other end of first water inlet pipe is connected with the elbow pipe, and the other end of elbow pipe is worn in first gas dissolving tank inside, to the first gas dissolving tank in -line delivery backflow water and carry out preliminary gas dissolving, the second water inlet pipe is connected between first gas dissolving tank with second gas dissolving tank, makes backflow water enter second gas dissolving tank secondary gas dissolving, and the water outlet pipe is connected with second gas dissolving tank far from second water inlet pipe one side, the utility model discloses, has the characteristics such as gas dissolving and gas dissolving efficiency high.