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公开(公告)号：US11821052B2
公开(公告)日：2023-11-21
申请号：US16344005
申请日：2017-12-27
申请人： TATA STEEL LIMITED
CPC分类号： C21D9/46 , B21D22/04 , B44B5/0052 , B44B5/026 , B44C1/24 , C21D7/04 , C22F1/04 , B21D13/02 , C21D2221/00
摘要： The present disclosure discloses a method for improving yield strength of one or more workpieces. The method includes positioning the one or more workpieces in a punch and die assembly and operating the punch and die assembly such that, a plurality of surface protrusions are formed on the one or more workpieces. The plurality of surface protrusions are formed by plastic deformation on the one or more workpieces, to improve yield strength of the one or more workpieces. The present disclosure also provides an apparatus to improve yield strength of the one or more workpieces. The present disclosure is configured to improve yield strength of the one or more workpieces, without altering its mechanical characteristics.
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公开(公告)号：US20230357905A1
公开(公告)日：2023-11-09
申请号：US18004437
申请日：2021-03-23
申请人： Tata Steel Limited
发明人： Appa Rao Chintha , M.B.N. Raju , Pankaj Raju , Basavaraj P Kalinganavar , V.K. Shah , Monojit Dutta , Avtar Singh Saini , Sanjay Chandra , Vinay V. Mahshabde
CPC分类号： C22C38/12 , C21D8/0205 , C21D9/0081 , C21D8/0226 , C21D2211/001
摘要： The present disclosure discloses a method for producing high strength hot rolled steel. The method includes casting a steel slab of a composition, comprising in weight %: carbon (C) of about 0.45 wt. %-1.2 wt. %, manganese (Mn) of about 0.0-1.0 wt. %, silicon (Si) of about 0.0-0.5 wt. %, niobium (Nb) up-to 0.03 wt. %, sulphur (S) up-to 0.05 wt. % of S, phosphorous (P) up-to 0.05 wt. %, nitrogen (N) 0.002 wt. %-0.012 wt. % and balance being Iron (Fe) optionally along with incidental elements. The method also involves, heating, hot rolling, cooling, coiling the steel and retaining the steel at an ambient temperature to produce high strength hot rolled steel with 75-95% spheroid microstructure and 5-25% pearlite microstructure.
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公开(公告)号：US11569397B2
公开(公告)日：2023-01-31
申请号：US16769991
申请日：2018-12-06
发明人： Shyam Kumar Choudhary , Sumitesh Das , Giridhar Udapi Rao Kulkarni , Rajashekhar Ningappa Pujar
IPC分类号： H01L31/0224 , H01L31/18 , H01L51/44
摘要： The present invention relates to hybrid transparent conducting electrode comprising reduced graphene oxide film, metal mesh and textured glass, wherein the reduced graphene oxide film is coated on the textured glass embedded with the metal mesh or the reduced graphene oxide film is sandwiched between the textured glass and the metal mesh. The present invention also relates to a process of preparing the hybrid conducting transparent conducting electrode. The said transparent conducting electrode exhibits transparency ranging from about 70% to 85% with sheet resistance ranging from about 5 Ω/sq to 100 Ω/sq.
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公开(公告)号：US11242490B2
公开(公告)日：2022-02-08
申请号：US16966954
申请日：2019-02-06
发明人： Bidyut Das , Sanjay Chandra , Atanu Ranjan Pal , Pratik Swarup Dash , Munish Sudan , Eleanor Binner , Christopher Dodds , Edward Henry Lester , Orla Williams , Samuel Kingman
摘要： The present disclosure relates to a method for producing metallurgical coke from non-coking coal. The method comprising, densifying, the non-coking coal to form pellets. The densified pellets will be placed in a microwave oven within plurality of bricks and are subjected for pyrolysis. For carrying our pyrolysis, the pellets are carried out by heating, the pellets in the microwave oven at a predetermined temperature under an inert atmosphere at atmospheric pressure, and then the pellets are cooled in the microwave oven under the inert atmosphere. This process coverts non-coking coal to the metallurgical coke in a quicker time, and without use of any susceptors.
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公开(公告)号：US20210054473A1
公开(公告)日：2021-02-25
申请号：US16982422
申请日：2018-10-01
申请人： TATA STEEL LIMITED
发明人： Prashant PATHAK , Saurabh KUNDU , Basudev BHATTACHARYA , Subrata MUKHERJEE , Amar Nath BHAGAT , Hrishikesh SHASTRI , Badirujjaman SYED
IPC分类号： C21D9/08 , C22C38/14 , C22C38/12 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D8/10 , C21D6/00
摘要： The present disclosure relates to designing of steel composition for line pipe steel to be used for sour environment. The developed steel of the present disclosure exhibits enhanced tensile properties in accordance with API 5L PSL-2 specification for X-65 grade steel, along with superior hydrogen induced cracking resistance with crack length ratio (CLR) of less than 10%, crack thickness ratio (CTR) of less than 5%, crack sensitivity ratio (CSR) of less than 2%. The developed steel is designed such that it is readily hot/cold formed and welded to form linepipe tubes to be used for the transportation of natural gas or crude oil, especially of sour grade. The present disclosure also provide a method of manufacturing the said steel having the composition of the present disclosure.
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公开(公告)号：US20210040393A1
公开(公告)日：2021-02-11
申请号：US16966954
申请日：2019-02-06
发明人： Bidyut Das , Sanjay Chandra , Atanu Ranjan Pal , Pratik Swarup Dash , Munish Sudan , Eleanor Binner , Christopher Dodds , Edward Henry Lester , Orla Williams , Samuel Kingman
摘要： The present disclosure relates to a method for producing metallurgical coke from non-coking coal. The method comprising, densifying, the non-coking coal to form pellets. The densified pellets will be placed in a microwave oven within plurality of bricks and are subjected for pyrolysis. For carrying our pyrolysis, the pellets are carried out by heating, the pellets in the microwave oven at a predetermined temperature under an inert atmosphere at atmospheric pressure, and then the pellets are cooled in the microwave oven under the inert atmosphere. This process coverts non-coking coal to the metallurgical coke in a quicker time, and without use of any susceptors.
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公开(公告)号：US10807871B2
公开(公告)日：2020-10-20
申请号：US16466903
申请日：2017-07-21
IPC分类号： C01B32/186 , B82Y30/00 , B82Y40/00
摘要： The present disclosure relates to a process for producing graphene, wherein the process is simple and economical. In the said process the substrate is contacted with vaporized seedlac to produce graphene on a substrate including but not limited to conductive material and non-conductive material. The disclosure further relates to a graphene which is impermeable to ions and molecules, resistant to oxidation and is hydrophobic. The disclosure furthermore relates to a substrate comprising graphene, said substrate is resistant to corrosion, resistant to oxidation and is hydrophobic.
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公开(公告)号：US10584393B2
公开(公告)日：2020-03-10
申请号：US15104348
申请日：2014-12-19
申请人： Tata Steel Limited
IPC分类号： C21B13/14 , C21C5/56 , F27B1/10 , F27D3/15 , F27D3/18 , F27D17/00 , C21B13/00 , C22B34/12 , F27D3/16
摘要： A smelting apparatus that includes (a) a smelting vessel (4) that is adapted to contain a bath of molten metal and slag and (b) a smelt cyclone (2) for pre-treating a metalliferous feed material positioned above and communicating directly with the smelting vessel The apparatus also includes an oft-gas duct (9) extending from the smelt, cyclone for discharging an off-gas from the smelt cyclone. The off-gas duct has an inlet section (18) that extends upwardly from the smelt cyclone and is formed to cause off-gas to undergo a substantial change of direction as it flows through the inlet section of the off-gas duct.
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公开(公告)号：US10280489B2
公开(公告)日：2019-05-07
申请号：US15365026
申请日：2016-11-30
申请人： Tata Steel Limited
发明人： Rodney James Dry , Jacques Pilote
摘要： A molten bath-based direct smelting process comprises controlling the process conditions in a direct smelting vessel so that molten slag in a molten bath of metal and slag in the vessel has a viscosity in a range of 0.5-5 poise when the slag temperature is in the range of 1400-1550° C. in the molten bath in the vessel.
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公开(公告)号：US20180358495A1
公开(公告)日：2018-12-13
申请号：US15562338
申请日：2016-03-24
发明人： Arul SHANMUGASUNDRAM , Tapan Kumar ROUT , Mukundan NARASIMHAN , Prosenjit BOSE , Amresh MAHAJAN
IPC分类号： H01L31/048 , H01L31/049 , H01L31/052 , B32B15/082 , B32B15/18 , B32B15/20 , B32B27/08 , B32B27/30 , B32B27/32 , B32B27/36 , C09D133/06 , C09D5/08
CPC分类号： H01L31/0481 , B32B15/082 , B32B15/18 , B32B15/20 , B32B27/08 , B32B27/304 , B32B27/306 , B32B27/32 , B32B27/322 , B32B27/36 , B32B2255/06 , B32B2255/26 , B32B2264/102 , B32B2264/104 , B32B2270/00 , B32B2307/204 , B32B2307/302 , B32B2307/412 , B32B2307/714 , B32B2307/732 , B32B2457/12 , B32B2607/00 , C09D5/08 , C09D133/06 , H01L31/049 , H01L31/052 , Y02E10/50
摘要： The present invention relates to dielectric coating formulation for solar module where a separate adhesive layer is not required for applying the formulation to the solar module. Preferably, the solar module is a light weight solar module.
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