4 results about "Plasticity" patented technology

The invention discloses a phosphorus-containing indoor-temperature high-plastic-deformation magnesium alloy which comprises the chemical components in percent by mass: 5.5-8.5 percent of Al, 0.4-1.5 percent of Zn, 0.1-1.0 percent of Mn, 0.05-1.0 percent of P and the balance of Mg and impurities. According to the phosphorus-containing indoor-temperature high-plastic-deformation magnesium alloy, a nonmetal element P is mainly added in an existing magnesium alloy smelting process, a stable and fine grain structure is obtained through the action of the nonmetal element P, the room-temperature plasticity of a magnesium alloy is improved, and the room-temperature processing and using requirements of a finished product or a semi-finished product are met.

The invention relates to special high-strength and high-plasticity reinforcing steel bars for high speed railways. Each reinforcing steel bar is 2-6m long, and comprises a reinforcing steel bar body and threads on the surfaces of two ends of the reinforcing steel bar body, wherein the threads are continuously distributed on the surfaces of the ends of the reinforcing steel bar body within a range of 45-55mm; the threads are 3mm wide and 0.4-0.6mm high, and tips of the threads are in arc transition by 2-5 degrees; the steel material comprises the following components in percentage by weight: 0.35-0.55% of C, 0.5-0.9% of Si, 1.5-1.7% of Mn, 0.04-0.05% of Nb, 0.08-0.09% of Cr, 0.02-0.04% of V, 0.001-0.003% of B, 0.004-0.007% of Mo, 0.01-0.02% of Al, 0.02-0.035% of P, 0.015-0.035% of S, 0.0085-0.01% of Ti, 0.0035-0.005% of Ni, 6-7% of compound rare earth, and the balance of Fe and other impurities. According to the steel material disclosed by the invention, the tensile strength is no less than 910Mpa, the yield strength is no less than 830Mpa, the elongation is no less than 15% and the 1000h relaxation rate is less than 2.5%.

The invention discloses an automatic glass mounting structure, and belongs to the technical field of glass mounting. The mounting structure comprises a window body, an elastic assembly and a sealing leather strip, wherein the window body comprises a groove, a soft cushion and a wooden frame; the elastic assembly comprises a base plate, a protective plate, a filler, a spring, a limiting rod, a screw and a bottom plate; the sealing leather strip comprises a dustproof cushion and a leather strip main body; the leather strip main body is integrally of a structure with a wide upper part and a narrow lower part; and the top end of the narrow part at the lower end is connected with the dustproof cushion. The automatic glass mounting structure is relatively high in practicability; the elastic assembly has very high plasticity, so that the problem that the glass window frame and the glass assembly cannot be mounted due to non-uniform specifications can be accommodated to a certain extent; and in addition, glass cement-free mounting is adopted in the mounting process, so that the glass mounting process is greatly simplified, and meanwhile, the professional requirements of mounting personnel are also lowered.

The invention discloses a welding rod matched with steel for 3Ni-1.6 Cr-0.5 Mo nuclear power equipment for use. The welding rod comprises a high-alkalinity welding rod coating and a low-alloy steel core wire for the welding rod, wherein the coating is formed by mixing a solid component and a liquid component; the solid component comprises the following composition elements in percentage by weight:44%-48% of CaCO3, 20%-25% of CaF2, 6%-8% of TiO2, 0-1% of Na2CO3, 4%-6% of CaSiO3, 1%-3% of MgO, 4%-10% of TiFe, 1%-3% of SiFe and 4%-10% of metal powder containing Ni and Cr, wherein the metal powder comprises 3%-6% of Ni and 2%-4% of Cr; the liquid component is potassium sodium water glass which accounts for the 20-23% of the mass of a mineral raw material dry powder component, the component elements of the core wire comprise component elements of, by weight, C: 0.09%-0.12%, Si: 0.1%-0.23%, Mn: 1.5%-2.0%, P: less than or equal to 0.02%, S: less than or equal to 0.02%, Cr: 1.0%-1.8%, Ni: 2.6%-3.5%, Mo: 0.3%-0.7%, Cu: less than or equal to 0.020%, Co: less than or equal to 0.020%, and the balance of Fe. The welding rod is good in welding adaptability, high in deposited metal strength, good in toughness and good in low-temperature plasticity, and the welding requirements of SA508Gr.4N steel and improved steel thereof developed at the present stage are met.