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全球专利

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  • [专利] (CN104471576B) 成型片状钢板之跃越失稳的预测系统及方法

    (CN104471576B) 个简化的工具被提供用于顶板(12,30)之跃越失稳抗力和压痕抗力的同步预测,此顶板包括顶板弓部配置造成的影响、顶板(12,30)的曲度(R1,R2)、顶板(12,30)的厚度和钢的等级。于实施例中,提供了种对于局部负载情形下的施加负载(26)预测生成之片状金属板(12)的跃越失稳抗力的方法,其中此片状板(12)具有某些已定义几何构形。此方法包括如下步骤:定义所述片状金属板(12)的第和第二主曲度半径(R1,R2);定义所述片状金属板(12)的厚度(t);定义介于支撑结构(32)间所述片状金属板部分的距离(L2);建立数学函数以确定跃越失稳之负载偏移行为;以及通过输入这些参数,确定所述片状金属板(12)的可能性以显示各种各样的局部施加负载(26)下的跃越失稳特性。

  • [专利] (BR112013028931) PRODUCTION PROCESS FOR A STEEL PLATE WITH A FULLY HOURLY STEEL PLATE, STEEL PLATE WITH MAXIMUM ELASTICUS STEEL AND STEEL PLATE

    (BR112013028931) The present invention provides a method for the fabrication of a steel sheet with a completely martensitic structure which has an average lath size of less than 1 micrometer and an average elongation factor of the laths is between 2 and 5.The elongation factor of a lath is defined as a maximum dimension divided by and a minimum dimension 1max.The steel sheet has a yield stress greater than 1300 MPa and a mechanical strength greater than (3220(C)+958) megapascals.A composition of a semi-finished steel product includes, expressed in percent by weight, is, 0.15%≰C≰0.40%, 1.5%≰Mn≰3%, 0.005%≰Si≰2%, 0.005%≰Al≰0.1%, 1.8%≰Cr≰4%, 0%≰Mo≰2%, whereby: 2.7%≰0.5 (Mn)+(Cr)+3(Mo)≰5.7%, S≰0.05%, P≰0.1%, optionally: 0%≰Nb≰0.050%, 0.01%≰Ti≰0.1%, 0.0005%≰B≰0.005%, 0.0005%≰Ca≰0.005%.The semi-finished product is reheated to a temperature T1 in the range between 1050° C. and 1250° C., then subjected to a roughing rolling at a temperature T2 in the range between 1000 and 880° C., with a cumulative rate of reduction εa greater than 30%, to obtain a sheet with a completely recrystallized austenitic structure with an average grain size less than 40 micrometers and preferably less than 5 micrometers.The sheet is then partially cooled to prevent a transformation of the austenite at a rate VR1 greater than 2° C./s to a temperature T3 between 600° C. and 400° C. in the metastable austenitic range, and subjected to a finishing hot rolling at the temperature T3 of the partially cooled sheet, with a cumulative rate of reduction εb greater than 30% to obtain a sheet that is then cooled at a rate VR2 which is greater than the critical martensitic quenching rate. (From US2014076470 A1)

  • [专利] (BR112014012756) CRUDE STEEL

    (BR112014012756) A dual phase steel (martensite+ferrite) having a tensile strength of at least 980 MPa, and a total elongation of at least 15%.The dual phase steel may have a total elongation of at least 18%.The dual phase steel may also have a tensile strength of at least 1180 MPa.The dual phase steel may include between 0.5-3.5 wt. % Si, and more preferably between 1.5-2.5 wt. % Si. (From US2015267280 A1)

  • [专利] (KR20160112017) Method for producing a metal sheet having zn-al-mg coatings, comprising the application of an acid solution and an adhesive, and corresponding metal sheet and assembly

    (KR101950079) Method of this invention, phase of at least next:- Boat [ssu] (bath) to D (dipping) will be board (3) dizzily, has if two, (5) becomes coating steel board (3) as for under providing phase,- To on external ostensible (15) of metal coating (7) between 1 and 4 the acid solution which has the ph which is included as for under applying phase, and- Adhesives (13) the low of applying a phase included locally to on at least one external ostensible (15) of metal coating (7).

  • [专利] (US10207743) Automotive vehicle structural part and method of producing the same

    (US10207743) The automotive vehicle structural part (30) includes at least a main panel (40) and a wheel casing (42), the main panel (40) and the wheel casing (42) being made of two distinct three-dimensional parts made of different materials attached to each other by welding.

  • [专利] (BR112018071475) METHOD FOR PRODUCING A COLD ROLLED STEEL PLATE AND COLD ROLLED STEEL PLATE, RECOVERED AND COATED

  • [专利] (BR112018073179) METHOD TO OBTAIN A REPRESENTATIVE PARAMETER OF A HEIGHT, PROCESS TO CONTROL A COKE'S RATE OF COKE, SYSTEM TO OBTAIN A REPRESENTATIVE PARAMETER OF A HEIGHT AND COKE

  • [专利] (BR112018071629) METHOD FOR PRODUCING A STEEL PLATE TWIP AND TWIP STEEL PLATE

  • [专利] (BR112018071879) APPARATUS AND PROCESS FOR CONTINUOUS COATING BY HOT-IRON DUMPING

  • [专利] (US10203194) Method and device for measuring the thickness of a coating layer on a running strip

    (US10203194) A method and device for measuring the thickness of a coating material layer of a running strip according to which, by means of an eddy current sensor for at least one area of the strip, a quantity is measured, representative of the thickness of the coating layer and the thickness of the coating layer is determined from the measured quantity and from at least one calibration value.The measurement made with an eddy current sensor comprises the measurement of the complex impedance of a coil facing the running strip for a low excitation frequency and a high excitation frequency and the elaboration of a quantity representative of the thickness of the coating layer from said complex impedance measurements.A device for applying the method and a coating installation equipped with the device.

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