165results about How to "Meet manufacturing requirements" patented technology

The invention discloses FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and a preparation method of the FeCrCuTiV high-entropy alloy powder. The high-entropy alloy powder is prepared from the following components in percentage by weight: 17-20% of Cr, 22-25% of Cu, 16-19% of Ti, 17-20% of V and 19-22% of Fe. The differences of the thermal expansion coefficient, the melting point, the elastic modulus and the like of a tungsten / steel interface can be effectively relieved through the solid solution effect of alloy elements such as Ti, V and Cu of a high-entropy alloy, the level of residual stress at a heterogeneous interface in the laser melting deposition preparation process can be reduced, precipitation of a Laves phase is avoided, and the manufacturing requirements of tungsten steel heterogeneous parts for a fusion reactor can be met.

The invention relates to a bimetal opening mold for a glass mold and a preparation method of the bimetal opening mold and belongs to the field of a glass mold and a preparation method of the glass mold. The bimetal opening mold comprises an opening mold base body and a nickel base alloy embedding block, wherein the nickel base alloy embedding block is combined into an inner cavity as an independent component, in addition, a group of tenons are formed at one side of the nickel base alloy embedding block backing to the nickel base alloy embedding block cavity, the group of tenons form a whole with the inner cavity of the opening mold base body in a mortise-tenon matching mode during the opening mold base body forming, the opening mold base body is copper alloy, the opening mold base body consists of the following chemical ingredients including aluminum, zinc, nickel, silicon, manganese, iron and the balance copper, and the nickel base alloy embedding block consists of the following chemical elements including carbon, silicon, chromium, copper, vanadium, boron, iron and the balance nickel. The bimetal opening mold has the advantages that the ideal high temperature resistance, oxidation resistance, creepage resistance, instant heat impact resistance and wear resistance performance can be realized, the service life of the opening mold is ensured, the manufacture requirements of the high-machine-speed glass container manufacture is met, the industrial production requirement is met, the energy sources are saved, the operation intensity of workers is reduced, and the influence caused by artificial factors is avoided.

The invention provides an ultrawide and ultrafine gauge structural steel plate for bridges and a production method thereof. The ultrawide and ultrafine gauge structural steel plate for bridges consists of the following chemical components by weight: C: 0.12 to 0.17 percent; Si: 0.20 to 0.45 percent; Mn: 1.25 to 1.50 percent; S: 0.010 percent or less; P: 0.020 percent or less; Nb: 0.010 to 0.040 percent; Ti: 0.008 to 0.030 percent; Als (standing for acid-soluble aluminium): 0.015 to 0.050 percent; N: 40 multiplied by 10 negative 6 or less; O: 20 multiplied by 10 negative 6 or less; H: 2 multiplied by 10 negative 6 or less; and the balance of iron and inevitable impurities. According to the invention, the ultrawide and ultrafine gauge structural steel plate for bridges has excellent low-temperature impact resistance, can meet the construction requirements of high-speed multi-track railways and wide highway bridges, and also can be widely used in engineering structures such as buildings, traffic and ocean platforms.

The invention relates to a copper pipe manufacturing method, in particular to a method of utilizing an extruding machine to manufacture a large-diameter thick-wall seamless copper pipe. According to the method, an extruding backing ring and thermal insulation cotton are additionally arranged between an extruding pad and a copper blank in the extruding machine, so that the red copper blank can rapidly heat up and expand after being in contact with the extruding backing ring; the unilateral gap between the extruding backing ring and an extrusion container is smaller than or equal to 1.5mm; the backstreaming of the copper blank from the gap between the extruding pad and the extrusion container in the extruding process is prevented; after the blank is manufactured, the blank is subjected to zero-defect treatment; the surface, in contact with the blank, of a die in the extruding process is preheated; the preheating surface of the die is smeared (lubricated) and extruded by adopting a special copper pipe extrusion lubrication medium; the inner and outer surface quality of the large-diameter thick-wall seamless copper pipe is effectively solved, so that the product quality is effectively improved. The manufacturing method has the advantages that the manufacturing flow is simple; the utilization rate of materials is high; the manufacturing requirements of different specifications of products are met; the manufactured product has the advantages that the whole grain size is uniform; the product performance is good; the service life is long, and the like; and therefore, the product has the advantages of low production cost, strong market competitiveness and the like.