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公开(公告)号：EP4450654A1
公开(公告)日：2024-10-23
申请号：EP23759513.7
申请日：2023-01-16
发明人： YASUDA, Kyono , SHIOTANI, Kazuhiko
摘要： A high strength steel plate having excellent ammonia SCC resistance and low-temperature toughness for use in storage tanks and the like used to contain liquefied gas in energy transport ships. The steel plate has a defined chemical composition, in particular including one or more of Cu: 0.01 % to 0.5 %, Cr: 0.01 % to 1.0 %, Sb: 0.01 % to 0.50 %, or Sn: 0.01 % to 0.50 %, and the chemical composition satisfies a defined relationship of the Cu, Cr, Sb, and Sn content. Further, a hardness property at a 1.0 mm depth position from the surface of the steel plate is 300 HV or less, and the metallic structure at a 1/2 thickness position of the steel plate has a volume fraction of bainitic microstructure of 20 % or more and a total volume fraction of ferritic microstructure and bainitic microstructure of 60 % or more.
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公开(公告)号：EP4450653A1
公开(公告)日：2024-10-23
申请号：EP23168745.0
申请日：2023-04-19
摘要： Disclosed is a method for forming shapes and contours at least in a section of a metal part via a peening forming treatment, wherein in a closed loop the part can be formed fully automatically, including an overall evaluation of the treated (formed) part and loops for redefining the treatment process, if design requirements are not met after the forming. Before starting the treatment on the real part, a peening forming treatment profile (peening treatment strategy) is established via simulation on a digital twin of the part to be formed. Further disclosed is a working station for executing the method.
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公开(公告)号：EP4450652A1
公开(公告)日：2024-10-23
申请号：EP24169327.4
申请日：2024-04-09
发明人： LOTTER, Gabriel Jacobus , SANYANGARE, Edwin Tinashe , STEYN, Petrus Paulus Albertus , DLAMINI, Thembela , TERBLANCHE, Gerhardus Scholtz , WHITEHEAD, Mark , FRANKENBERGER, Arnd
摘要： The metallurgical furnace 10 comprises a closed vessel 12 enclosing a reducing atmosphere. The vessel comprises at least one electrode 14.1 providing energy to a burden 16. The burden comprises a body of molten metal 20 having an upper surface 22. A carbon injecting lance 28.1, in an operational position thereof, extends from an inlet end 30 thereof outside the vessel through a port 32 in the vessel to an outlet end 34 thereof inside the vessel where the lance terminates below the upper surface 22. The inlet end 30 is connected to a source of carbon. The lance being movable between the operational position and a retracted position wherein the outlet end 34 is outside the vessel. The furnace further comprises a gastight enclosure 38.1 for the lance when in the retracted position. The enclosure locates on the vessel in gastight manner and over the port and maintains the reducing atmosphere in the vessel.
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公开(公告)号：EP4450651A1
公开(公告)日：2024-10-23
申请号：EP22923522.1
申请日：2022-12-13
发明人： JI, Shumin , XU, Xiaobing , JIA, Zhiguo , CHEN, Ruoping , LI, Tao , YANG, Chunlei
摘要： The present disclosure discloses method for ironmaking in blast furnace with hydrogen enriched and carbon recycling, including increasing a proportion of oxygen blown through tuyeres to an ultra-high level of 35% to 50% with an oxygen enrichment in a traditional blast furnace as a reference; removing CO 2 from top gas by using an amine scrubbing method, and then injecting it into the blast furnace with hydrogen enriched and carbon recycling; a distance between the inlet of gas for heating furnace body and the gas injection ports of the composite tuyere device is L1, and a distance between the inlet of gas for heating furnace body and the top of furnace is L2, where L1: L2 is 6.5: 8.2, an angle between the inlet of gas for heating furnace body and a lower part of outer wall of the furnace body is β, where β is in a range of 112° to 130°, the temperature of the high-temperature upgraded gas entering the blast furnace is 950°C when entering from the furnace body and 1200°C when entering through the tuyeres, using sintered ore with a basicity R = 1.75 ± 0.05, and checking charges according to a requirement for slag to contain more than 15% Al 2 O 3 and to have a binary basicity B2 = CaO/SiO2 = 1.02-1.10; doping decarbonized gas from the Oxyfurnace and coke oven gas into the recycling gas pipeline at the inlets of the composite tuyere device, with a combined amount thereof is 12% to 25% of the total amount of high-temperature upgraded gas introduced into the blast furnace with hydrogen enriched and carbon recycling.
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公开(公告)号：EP4407048A3
公开(公告)日：2024-10-23
申请号：EP24180808.8
申请日：2020-09-29
发明人： KASAI, Akito , YAKEYA, Masahiro
IPC分类号： C21B5/00
摘要： A production method of pig iron using a blast furnace with a tuyere according to one aspect of the present invention includes: charging a first layer containing an iron ore material and a second layer containing coke alternately in the blast furnace; and reducing and melting the iron ore material in the charged first layer while injecting an auxiliary reductant into the blast furnace by hot air blown from the tuyere, in which: an aggregate for letting through the hot air to a central portion of the blast furnace is blended into the first layer; and the aggregate contains a reduced iron molded product obtained through compression molding of reduced iron.
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公开(公告)号：EP4118244B1
公开(公告)日：2024-10-16
申请号：EP21712262.1
申请日：2021-03-03
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公开(公告)号：EP3778948B1
公开(公告)日：2024-10-16
申请号：EP18911370.7
申请日：2018-03-29
发明人： TODA, Yuri , HIKIDA, Kazuo , FUJINAKA, Shingo , TANAKA, Tomohito
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