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Patent Digest


Severe shock load on the superior toughness, wear resistance and wear life to achieve improvements and more low-cost manufacturing methods. Patent title: Induction heating device oxide removal method and induction heating device patent application number: 02800992.4 Public number: 1460125 Applicant: Japan Kawasaki Steel Co., Ltd.; Mitsubishi Electric Corporation in the induction heating device such that it In the induction heating coil inside the with block through the induction heating coil from the inside of the material is heated radiant heat of the heat resistant heat shield and through the induction heating coil is heated material applied alternating magnetic field to heat the material is heated, induction heating coils from the entrance side and exit side of the at least one side and follow the angle of two or more different hair blowing hot plate of the file,[link widoczny dla zalogowanych], which is stable to heat generated in the material and on the surface drop in the files of the oxide scale left the hot plate heat shield. Patent Name: characteristics of good resistance to delayed fracture of steel bolt and patent number: 02800802.2 Public number: 1460156 Applicant: Japan's Nippon Steel Corporation bolt tensile strength of the present invention in 1200N/mm21, 31I- excellent delayed fracture resistance characteristics of high strength bolts and steel. Head and shaft of the invention is the formation of the Department of steel bolt, bolt formed by the tensile strength of steel Ts (N / n) and tempering temperature T (℃) the relation satisfies the following (1), and , the tensile strength bolt according to their chemical composition and carbon equivalent calculated c (%) satisfy the following relationship (2), through quenching and tempering, the tensile strength of quenched and tempered bolts to 1200N / n than to 1600N Shan range below 2, ≤ 1.1T +850 (1); TS ≤ 550Cm + ~ ooo (2); where. C = C + (Mn / 6) + (Si/24) + (Ni/4o) + (Cr / 5) + (Mo / 4) + (V/14). Patent Name: metallurgical products for re-heating method patent number: 01815234.1 Public number: 1460170 Applicant: Air Liquide, France George Lord Methods and Research and the Management Committee with oversight limited use of the invention relates to a metallurgical products in the heating method. This method is the heating of solid products, particularly steel products. By sending them over a includes an upstream and a downstream area of the stove below them from a basic temperature of about 400 ℃, a temperature of at least about 1000oc,[link widoczny dla zalogowanych], the above mentioned products in the upstream region and in the warm-up the downstream area is increased to above their final furnace output temperature of said burner installed in the downstream area, at least some of the burners to run an oxidizer that is, air from the combustion exhaust gas generated by reverse flow of these products and the relatively warm preheat zone in the upstream product. Characteristics of the present invention is that it is in the upper reaches of the pre-heating zone furnace to provide at least one burner in the burner is supplied with an oxidizer and fuel mixture that contains more than 2o% described oxidant volume and preferably more than 3o% volume of oxygen. Patent title: rare earth magnets and their manufacturing method patent application number: 0280l076.0 Public number: 1460270 Applicant: Sumitomo Special Metals Co., Ltd. 13 without loss to take full advantage of the added rare earth magnets and other heavy rare earth elements Dy RH, to effectively improve the coercive force. First, the preparation of rare earth alloy RTQ system (R = rare earth element, T is transition metal element, Q is selected from B, C, N, A1,[link widoczny dla zalogowanych], Si,[link widoczny dla zalogowanych], P in at least one element), that is as rare earth elements R containing selected from Nd and Pr at least one of RJ 『, and selected from Dy,, Ho RH at least one of the alloy melt. Will be quenching the alloy melt and made of alloy solidification, the solidification of the alloy quenched and inadequate 800'I2 in 400't3 above the temperature range of more than 5min 12h following heat treatment. Through this heat treatment, grain boundary phase to enable the RH from the main phase of movement,[link widoczny dla zalogowanych], thereby increasing the coercive force. Patent title: Induction heating device heat shield open patent application No. 102800993.2 number: 1460392 Applicant: Japan Kawasaki Steel Co., Ltd.; Mitsubishi Electric Corporation present invention relates to induction heating coils installed at the inside and shelter from the transport of the material is heated radiant heat into the induction heating coil induction heating devices in the heat shield, which consists of thermal conductivity was 5w / (m ~ C) or higher overall thermal conductivity of strong form and in the refractory refractories are buried in the overall cooling pipe, which the one, caused by heat deformation and damage is very small. [By Kim designed feed]

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