Abstract: A sintered Ti alloy comprising: 4 to 6 wt. % iron; 1 to 4 wt. % aluminium or 1 to 3 wt. % copper; >0 to 0.5 wt. % silicon; >0 to 0.3 wt. % boron; >0 to 1 wt. % lanthanum, and the balance being titanium with incidental impurities. In the associated powder metallurgy formation process, the boron and lanthanum content is preferably introduced into a blended powder mixture in the form of lanthanum boride (LaB6).

Abstract: An aluminium-zinc-hot-dipped and colour-coated steel plate having yield strength of ?500 MPa and a high elongation and a manufacturing method thereof, with the chemical components in mass percentage of a substrate of the steel plate being: 0.07-0.15% of C, 0.02-0.5% of Si, 1.3-1.8% of Mn, N?0.004%, S?0.01%, Ti?0.15%, Nb?0.050%, and the balance being Fe and other inevitable impurities, and meanwhile satisfying the conditions of: (C+Mn/6)?0.3%; Mn/S?150; Nb satisfying 0.01%?(Nb-0.22C-1.1N)?0.05% where no Ti is contained; Ti satisfying 0.5?Ti/C?1.5 where no Nb is contained; and 0.04%?(Ti+Nb)?0.2% where Ti and Nb are added in combination. The steel plate has a tensile strength of ?550 MPa, an elongation after fracture of ?15%, a good strength and toughness and an excellent corrosion resistance.

Abstract: A grain-oriented silicon steel with low iron loss, wherein the silicon steel is provided with a plurality of grooves on its surface, each of the grooves is 10-60 ?m in width and 5-40 ?m in depth, and the spacing between adjacent grooves is 1-10 mm. The manufacturing method therefor comprises: scoring the surface of the grain-oriented silicon steel with low iron loss by using a laser in order to form the grooves. The grain-oriented silicon steel with low iron loss can maintain the magnetic domain refining effect in a stress-relief annealing process, and avoid the introduction of more residual stress.

Abstract: A high-strength steel having a yield strength at a level of 800 MPa and a method of manufacturing the same, with the components and amounts thereof by weight percentage being: C: 0.06-0.14%, Si: 0.1-0.30%, Mn: 0.8-1.60%, Cr: 0.2-0.70%, Mo: 0.1-0.40%, Ni: 0-0.30%, Nb: 0.01-0.030%, Ti: 0.01-0.030%, V: 0.01-0.05%, B: 0.0005-0.0030%, Al: 0.02-0.06%, Ca: 0.001-0.004%, N: 0.002-0.005%, P?0.02%, S?0.01%, O?0.008%, the balance of Fe and unavoidable impurities; wherein the above elements meet the following relationships: 0.40%<Ceq<0.50%, Ceq=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15; 0.7%?Mo+0.8Ni+0.4Cr+6V?1.1%; 3.7?Ti/N?7.0; 1.0?Ca/S?3.0.

Abstract: Disclosed is a method for using cold rolling magnetic filtration waste, comprising using the cold rolling magnetic filtration waste as a fluxing agent for a high-ash-fusion coal so as to achieve the technical requirements of a high melting point coal in dry coal powder gasification and liquid slagging. The cold rolling magnetic filtration waste contains solid particulates with very fine particles (iron-containing particles mainly produced by friction), and the surface thereof has a cold rolling oil attached thereto, and same reacts with other aluminosilicates in coal ash at a high temperature to produce low temperature eutectic compounds such as fayalite (Fe2SiO4) and hercynite (Fe2Al2O4). The fluxing agent has characteristics such as having fine particles, being free of inorganic mineral substances, having an effective ingredient in a high content, operation thereof being simple, and being free of pollution.

Abstract: An aluminium-zinc-hot-dipped and colour-coated steel plate having a 600 MPa yield strength grade and a high elongation and a manufacturing method thereof, with the chemical components in mass percentage of a substrate of the steel plate being: 0.07-0.15% of C, 0.02-0.5% of Si, 1.3-1.8% of Mn, N?0.004%, S?0.01%, Ti?0.20%, Nb?0.060%, and the balance being Fe and other inevitable impurities, and meanwhile satisfying the conditions of: (C+Mn/6)?0.3%; Mn/S?150; Nb satisfying 0.01%?(Nb?0.22C?1.1N)?0.06% where no Ti is contained; Ti satisfying 0.5?Ti/C?1.5 where no Nb is contained; and 0.04%?(Ti+Nb)?0.26% where Ti and Nb are added in combination. The steel plate has a yield strength of ?600 MPa, a tensile strength of ?650 MPa, an elongation after fracture of ?12%, a good strength and toughness and an excellent corrosion resistance.

Abstract: Disclosed is a manufacturing method for a high silicon grain oriented electrical steel sheet, the silicon content of the high silicon grain oriented electrical steel is greater than 4 wt %, comprising the steps of: (1) performing decarburization annealing of a cold-rolled steel plate; (2) allowing high silicon alloy particles in a completely solid state to collide at a high speed with the surface of the decarburization annealed steel plate to be sprayed, thus forming a high silicon alloy coating on the surface of the steel plate to be sprayed; (3) coating a release agent and drying; and (4) annealing. The manufacturing method for the high silicon grain oriented electrical steel sheet of the present invention is inexpensive, and, the high silicon grain oriented electrical steel sheet produced is of stable quality and is provided with great magnetic performance.

Abstract: A steel plate having excellent resistance to fatigue crack growth and manufacturing method thereof, wherein the components of the steel plate in weight percentage are: 0.040-0.070% of C, 0.40-0.70% of Si, 1.30-1.60% of Mn, less than or equal to 0.013% of P, less than or equal to 0.003% of S, less than or equal to 0.30% of Cu, less than or equal to 0.30% of Ni, less than or equal to 0.10% of Mo, 0.008-0.018% of Ti, 0.015-0.030% of Nb, less than or equal to 0.0040% of N, 0.0010-0.0040% of Ca, and the balance being Fe and inevitable impurities. By controlling [% C]×[% Si] between 0.022-0.042, {([% C]+3.33[% Nb])×[% Si]}×Vcooling rate/Tcooling-stopping between 1.15×10?4˜2.2×10?3, carrying out a Ca treatment, and Ca/S=1.0-3.0 and (% Ca)×(% S) 0.28?1.0×10?3, the optimizing the TMCP process, the finished steel plate has a microstructure which a duplex-phase structure of ferrite+uniformly and dispersedly distributed bainite and has an improved resistance to fatigue crack growth.

Abstract: Disclosed is a high-strength high-toughness and wear-resistant composite steel plate, comprising a substrate layer and a composite layer of which a single side or double sides are composited on the substrate layer; the substrate layer is a carbon steel layer; the composite layer is a ultra-high manganese steel layer, and a content of Mn element in the composite layer is 16.00˜25.00 wt. %. Further disclosed is a manufacturing method for the high-strength high-toughness and wear-resistant composite steel plate, comprising: (1) making a substrate layer plate blank and a composite layer plate blank; (2) assembling; (3) heating: the heating temperature is 1150˜1250° C. and the heat preservation is performed for 1˜3 hours; (4) composite rolling: the starting rolling temperature is 1120˜1220° C.; the finishing rolling temperature is 1050˜1200° C.; and the reduction rate is controlled to be more than or equal to 50%; and (5) cooling after rolling.

Abstract: Disclosed is a flow-controllable tundish structure capable of filtering inclusions in molten steel. The tundish structure comprises a tundish (1), the tundish being divided into three separated cavities which comprise an impact zone cavity (1a) in the middle and pouring zone cavities (1b) at two sides thereof. A long nozzle (2) for pouring is vertically arranged in the center of the impact zone cavity, and molten steel flows down out of the long nozzle for pouring and is injected into the impact zone cavity; and a turbulence suppressor (3) directly facing the long nozzle for pouring is arranged on the cavity bottom under the long nozzle for pouring, and the molten steel flowing down out of the long nozzle for pouring impacts on the turbulence suppressor and is then buffered and mixed.

Abstract: There is disclosed in the disclosure a protective steel plate with excellent cold roll formability, comprising: three soft steel layers (1, 4, 5) and two hard steel layers (2, 3), wherein the three soft steel layers (1, 4, 5) and the two hard steel layers (2, 3) are positioned alternately, and face layers of the protective steel plate are soft steel layers (1, 4, 5), wherein the hard steel layers (2, 3) and the soft steel layers (1, 4, 5) are atomically bonded by rolling cladding; wherein the soft steel layers (1, 4, 5) comprise chemical elements in percentage by mass of: C: 0.001-0.01%, 0<Si?0.005%, Mn: 0.05-0.15%, 0<Al?0.005%, Ti: 0.01-0.10%, with a balance of Fe and other unavoidable impurities.

Abstract: A mixed jet descaling device axially and eccentrically arranged for the inner wall of a metal pipe comprises a support rod (1) arranged inside the metal pipe (100), the support rod being parallel to the central axis of the metal pipe, eccentrically arranged and not concentric with the central axis of the metal pipe; and at least two spray nozzle units (2, 2?, 2?) for spraying the mixed jet, the spray nozzle units being arranged from front to back along the length direction of the support rod. At least two mixed jet spray nozzles (21, 21?, 21?) are provided in each spray nozzle unit and uniformly arranged along the circumference of the support rod in such a manner that the mixed jet spray nozzles diverge towards periphery of the support rod with the axis of the support rod as the center.

Abstract: A thick steel plate for high heat input welding and having great heat-affected area toughness and a manufacturing method therefor, comprising the steps of smelting, casting, rolling, and cooling. Chemical composition is properly controlled for the steel plate and satisfies 1?Ti/N?6 and Mg/Ti>0.017, where effective S content in steel=S?1.3 Mg?0.8 Ca?0.34 REM?0.35 Zr, and effective S content in steel: 0.0003-0.003%; finely dispersed inclusions may be formed in the steel plate, and the amount of composite inclusion MgO+Ti2O3+MnS in the steel plate is controlled at a proportion greater than or equal to 5%. The tensile strength of a base material so acquired is ?510 MPa, insofar as welding input energy is 200-400 kJ/cm, the average Charpy impact work of the steel plate at ?40 ° C. is 100 J or more, at the same time, the average Charpy aging impact work of the base material of ½ thickness at ?40° C. is 46 J or more.

Abstract: There is disclosed in the disclosure a protective clad steel plate, comprising hard steel layers (1, 3, 5) and soft steel layers (2, 4) arranged alternately, wherein face layers of the protective clad steel plate are hard steel layers (1, 3, 5), wherein the hard steel layers (1, 3, 5) and soft steel layers (2, 4) are atomically bonded by rolling cladding; wherein the soft steel layers (2, 4) comprise chemical elements in percentage by mass of: C: 0.001-0.01%, 0<Si?0.005%, Mn: 0.05-0.15%, 0<Al?0.005%, Ti: 0.01-0.10%, with a balance of Fe and unavoidable impurities.

Abstract: A rolling mill (1) which is suitable for performing hot stalling rolling includes: a housing (2); a first roller (9) mountable to the housing (2); a second roller (10) mountable to the housing (2), wherein the position of the second roller (10) relative to the housing (2) is adjustable, thereby adjusting the width of a roll gap (17) between the first roller (9) and the second roller (10), and wherein the roll gap (17) is configured to deform a workpiece (18) when the workpiece (18) is passed therethrough. The rolling mill provides the advantage of optimizing the rolling process.

Abstract: A die-casting magnesium alloy. The die-casting magnesium alloy comprises, by mass percent, 1% to 5% of La, 0.5% to 3% of Zn, 0.1% to 2% of Ca, 0.1% to 1% of Mn and the balance Mg and other inevitable impurities. The die-casting magnesium alloy manufacturing method comprises smelting, refinement and die-casting. The die-casting magnesium alloy has good mechanical performance, die-casting performance and heat conduction performance.

Abstract: Laminated steel having a low interface bubble rate, comprising: a substrate with a surface roughness of 0.15-0.25 ?m and a modified flexible polyester film thermally laminated onto the surface of the substrate. The modified flexible polyester film is obtained by copolymerization modification of ethylene terephthalate with a low-molecular-weight aliphatic polyester. A method for manufacturing the laminated steel having an extremely low interface bubble rate, comprising the steps of: (1) preheating and then heating the substrate; (2) uncoiling the modified flexible polyester film at room temperature, and then thermally laminating same onto the substrate; and (3) cooling and squeeze-drying.

Abstract: A bulletproof steel plate with a tensile strength of 2000 MPa grade and a Brinell Hardness of 600 grade and a manufacturing method thereof, characterized by that the chemical elements in mass percentage thereof being: 0.35-0.45% of C, 0.80-1.60% of Si, 0.3-1.0% of Mn, 0.02-0.06% of Al, 0.3-1.2% of Ni, 0.30-1.00% of Cr, 0.20-0.80% of Mo, 0.20-0.60% of Cu, 0.01-0.05% of Ti, 0.001-0.003% of B, and the balance being Fe and inevitable impurities. The tensile strength of the steel plate can reach a grade of 2000 MPa and its Brinell Hardness can reach a grade of 600.

Abstract: The present invention discloses an ultra-high strength and ultra-high toughness casing steel, having a microstructure of tempered sorbite, and the content of chemical elements by mass percent thereof being as follows: C: 0.1-0.22%, Si: 0.1-0.4%, Mn: 0.5-1.5%, Cr: 1-1.5%, Mo: 1-1.5%, Nb: 0.01-0.04%, V: 0.2-0.3%, Al: 0.01-0.05%, Ca: 0.0005-0.005%, the balance being Fe and unavoidable impurities. Correspondingly, the invention also discloses a casing obtained by processing the ultra-high strength and ultra-high toughness casing steel and a manufacturing method thereof. The ultra-high strength and ultra-toughness casing steel and the casing of the present invention have a strength of 155 ksi or more and an impact toughness greater than 10% of its yield strength value, thereby realizing a combination of ultra-high strength and ultra-high toughness.

Abstract: The present invention provides a system for enabling synchronous sheet transfer to follow laser cutting dynamically. A laser-cutting method for the system for enabling synchronous sheet transfer to follow laser cutting dynamically is also provided. With the system and method of the present invention, dynamic following of sets of magnetic belts during the cutting procedure is implemented, thereby accelerating the processing pace, and further improving the throughput.