30results about How to "The ratio of ingredients is flexible" patented technology

The invention provides a waste-material-recycled multi-phase permanent magnet material and a preparation method therefor. The permanent magnet material has relatively high maximum magnetic energy product performance and coercivity. The preparation method is simple in process, low in production cost, and suitable for realizing industrial production. The permanent magnet material comprises the following components based on mass percentage: 25-30% of Nd, 2.5-3.0% of Y, 2.5-3.0% of Ce, 0.25-0.30% of Tb, 0.25-0.30% of Eu, 0.25-0.30% of La, 0.25-0.30% of Pr, 2-4% of B, 1.0-1.2% of N, 0.25-0.30% of V, 2.1-2.5% of W and the balance of Fe; and the 1.0-1.2% of N based on mass percentage is included in the material.

The invention provides a low-cost preparation method of a titanium silicon alloy target material. The low-cost preparation method of the titanium silicon alloy target material comprises the following steps of A, mixing: uniformly mixing sponge titanium and crystal silicon according to the proportion; B, pressing an electrode: pressing the mixed raw material into an electrode rod, and heating the electrode rod; C, carrying out self-consumption smelting for the first time: under a protective atmosphere, welding the heated electrode, then carrying out vacuum self-consumption smelting for the first time, and obtaining a primary ingot of titanium silicon alloy; D, welding: after flattening two ends of the primary ingot of the titanium silicon alloy, combining and welding the primary ingot of the titanium silicon alloy by utilizing a vacuum electron beam welding technology, and obtaining an electrode material; E, carrying out self-consumption smelting for the second time: carrying out vacuum self-consumption smelting on the electrode material for the second time, and obtaining a secondary ingot of the titanium silicon alloy; and F, processing the secondary ingot of the titanium silicon alloy, and obtaining the final titanium silicon target material. The titanium silicon target material prepared by the method provided by the invention has a compact structure, and is uniform and fine, high in raw material production rate, low in cost, and suitable for engineering mass production.

The invention discloses a multi-rare-earth-phase material and a preparation method thereof. The material comprises the following components in percentage by mass: 15-20% of Nd, 3-4% of Ir, 4.5-6% of Ga, 6.0-8.0% of Cr, 3-4% of Pr, 0.15-0.20% of Gd, 0.3-0.4% of Sr, 2-5% of B, 0.45-0.60% of Co, 0.01-0.04% of Mn, 0.01-0.04% of Mo, and the balance of Fe. The material disclosed by the invention has the advantages of uniform texture and robust structure; in addition, the material is improved in corrosion resistance and magnetic property. The material is prepared by using the preparation method disclosed by the invention. The simple and effective anti-oxidation method can ensure a small difference in oxygen content between the surface and inside of a magnetic body and therefore makes the preparation of a high-performance rare earth material possible. The permanent magnet material disclosed by the invention has excellent stability and practicability, can be widely applied to various fields such as electronic devices, aerospace technology, computer equipment, magnetic separators, communication equipment, medical equipment, electric bicycles, electronic toys.