Copper Containing Patents (Class 420/76)
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Patent number: 11391237Abstract: A diesel engine piston is cast in one piece and consists of almost fully pearlitic cast iron with spheroidal graphite as the piston material. Such a piston is used for “light vehicle” diesel engines, “heavy duty” diesel engines and “large bore” diesel engines.Type: GrantFiled: May 10, 2019Date of Patent: July 19, 2022Assignee: Federal-Mogul Nurnberg GmbHInventors: Rainer Weiss, Laszlo Pelsoeczy
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Patent number: 9039961Abstract: The invention relates to a low-nickel austenitic stainless steel with high resistance to delayed cracking and the use of the steel. The steel contains in weight % 0.02-0.15% carbon, 7-15% manganese, 14-19% chromium, 0.1-4% nickel, 0.1-3% copper, 0.05-0.3% nitrogen, the balance of the steel being iron and inevitable impurities, and the chemical composition range in terms of the sum of carbon and nitrogen contents (C+N) and the measured Md3o-temperature is inside the area defined by the points ABCD which have the following values Point Md30° C. C+N % A?80 0.1 B+7 0.1 C?40 0.40 D?80 0.40.Type: GrantFiled: April 18, 2011Date of Patent: May 26, 2015Assignee: Outokumpu OyjInventors: Juho Talonen, Suresh Kodukula, Tero Taulavuori
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Publication number: 20140373588Abstract: There are provided a wear resistant austenitic steel having superior machinability and toughness in weld heat affected zones and a method for producing the austenitic steel. The austenitic steel includes, by weight %, manganese (Mn): 15% to 25%, carbon (C): 0.8% to 1.8%, copper (Cu) satisfying 0.7C-0.56(%)?Cu?5%, and the balance of iron (Fe) and inevitable impurities, wherein the weld heat affected zones have a Charpy impact value of 100 J or greater at ?40° C. The toughness of the austenitic steel is not decreased in weld heat affected zones because the formation of carbides during welding is suppressed, and the machinability of the austenitic steel is improved so that a cutting process may be easily performed on the austenitic steel. The corrosion resistance of the austenitic steel is improved so that the austenitic steel may be used for an extended period of time in corrosive environments.Type: ApplicationFiled: December 27, 2012Publication date: December 25, 2014Inventors: Soon-Gi Lee, Jong-Kyo Choi, Hee-Goon Noh, Hong-Ju Lee, In-Shik Suh, In-Gyu Park
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Publication number: 20140356220Abstract: There are provided a wear resistant austenitic steel having superior machinability and toughness in weld heat affected zones and a method for producing the austenitic steel. The austenitic steel includes, by weight %, manganese (Mn): 15% to 25%, carbon (C): 0.8% to 1.8%, copper (Cu) satisfying 0.7C-0.56(%)?Cu?5%, and the balance of iron (Fe) and inevitable impurities, wherein the weld heat affected zones have a Charpy impact value of 100 J or greater at ?40° C. The toughness of the austenitic steel is not decreased in weld heat affected zones because the formation of carbides during welding is suppressed, and the machinability of the austenitic steel is improved so that a cutting process may be easily performed on the austenitic steel. The corrosion resistance of the austenitic steel is improved so that the austenitic steel may be used for an extended period of time in corrosive environments.Type: ApplicationFiled: December 27, 2012Publication date: December 4, 2014Inventors: Soon-Gi Lee, Jong-Kyo Choi, Hee-Goon Noh, Hyun-Kwan Cho, In-Shik Suh, Hak-Cheol Lee, In-Gyu Park, Hong-Ju Lee
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Patent number: 8900511Abstract: The present invention relates a high-strength nonmagnetic stainless steel, containing, by weight percent, 0.01 to 0.06% of C, 0.10 to 0.50% of Si, 20.5 to 24.5% of Mn, 0.040% or less of P, 0.010% or less of S, 3.1 to 6.0% of Ni, 0.10 to 0.80% of Cu, 20.5 to 24.5% of Cr, 0.10 to 1.50% of Mo, 0.0010 to 0.0050% of B, 0.010% or less of O, 0.65 to 0.90% of N, and the remainder being Fe and inevitable impurities; the steel satisfying the following formulae (1) to (4): [Cr]+3.3×[Mo]+16×[N]?30??(1), {Ni}/{Cr}?0.15??(2), 2.0?[Ni]/[Mo]?30.0??(3), and [C]×1000/[Cr]?2.5??(4), wherein [Cr], [Mo], [N], [Ni], [Mo] and [C] represent the content of Cr, the content of Mo, the content of N, the content of Ni, the content of Mo and the content of C in the steel, respectively, and {Ni} represents the sum of [Ni], [Cu] and [N], and {Cr} represents the sum of [Cr] and [Mo]. The present invention further relates to a high-strength nonmagnetic stainless steel part containing the steel and a process for producing the same.Type: GrantFiled: May 2, 2008Date of Patent: December 2, 2014Assignee: Daido Tokushuko Kabushiki KaishaInventors: Koichi Ishikawa, Tetsuya Shimizu
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Publication number: 20140308156Abstract: Provided are a steel sheet for warm press forming that can have high strength, good elongation, and thus improved crashworthiness after being warm pressed, and a warm-pressed member formed of the steel sheet, and manufacturing methods thereof. The steel sheet for warm press forming includes, by weight %, C: 0.01% to 0.5%, Si: 3.0% or less (excluding 0%), Mn: 3% to 15%, P: 0.0001% to 0.1%, S: 0.0001% to 0.03%, Al: 3.0% or less (excluding 0%), N: 0.03% or less (excluding 0%), and the balance of Fe and inevitable impurities.Type: ApplicationFiled: November 5, 2012Publication date: October 16, 2014Inventors: Jin-Keun Oh, Kyoo-Young Lee, Yeol-Rae Cho, Eul-Yong Choi, Ki-Soo Kim
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Patent number: 8535606Abstract: Disclosed are corrosion resistant, non-magnetic austenitic stainless steels containing alloying elements molybdenum, nickel, and copper and further containing small quantities of an additional element selected from the group consisting of a rare-earth element, calcium, cobalt, iridium, osmium, rhenium, rhodium, ruthenium, silver, and a combination thereof.Type: GrantFiled: July 9, 2009Date of Patent: September 17, 2013Assignee: Baker Hughes IncorporatedInventor: Hendrik John
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Publication number: 20120288396Abstract: Provided is an austenite steel having excellent ductility including 8 wt % to 15 wt % of manganese (Mn), 3 wt % or less (excluding 0 wt %) of copper (Cu), a content of carbon (C) satisfying relationships of 33.5C+Mn?25 and 33.5C?Mn?23, and iron (Fe) as well as unavoidable impurities as a remainder. According to an aspect, austenite is stabilized and generation of carbides in a network form at austenite grain boundaries is inhibited by adding copper (Cu) favorable to inhibition of carbide formation with respect to manganese and appropriately controlling contents of carbon and manganese, and thus, high economic efficiency may also be achieved while ductility and wear resistance are improved.Type: ApplicationFiled: December 28, 2010Publication date: November 15, 2012Applicant: POSCOInventors: Soon-Gi Lee, Jong-Kyo Choi, Hyun-Kwan Cho, Hee-Goon Noh
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Publication number: 20100253006Abstract: A steel product having a composition which contains by mass C: 0.01 to 1.9%, Si: 0.01 to 1.9%, Mn: 5.0 to 24.0% with balance consisting of Fe and unavoidable impurities and a steel product described above which further contains Cr: 18.0% or below and/or Ni: 12.0% or below in addition to the above essential elements. The above steel products may each further contain Al: 1% or below and/or N: 0.3% or below and the above steel products may each further contain one or more elements selected from among Nb, Ti, Zr, Mo and Cu in a total amount of 4.0% or below. The steel products can sufficiently follow the thermal expansion of a cylinder made of an aluminum alloy and thus enables the production of a piston ring which is suitable for use as a piston ring to slide on the inner face of a cylinder bore made of an aluminum alloy in an internal combustion engine and which can retain excellent sealing properties.Type: ApplicationFiled: November 28, 2008Publication date: October 7, 2010Applicant: NIPPON PISTON RING CO., LTDInventors: Yoshiki Ishikawa, Seisuke Takaki, Motonobu Onoda
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Patent number: 7780908Abstract: An austenitic stainless steel includes (a) 0.03 wt % to 0.12 wt % of C, (b) 0.2 wt % to 1.0 wt % of Si, (c) 8.55 wt % to 10.12 wt % of Mn, (d) 14.0 wt % to 16.0 wt % of Cr, (e) 4.05 wt % to 4.31 wt % of Ni, (f) 0.04 wt % to 0.07 wt % of N, (g) 1.0 wt % to 3.5 wt % of Cu, (h) trace amount of Mo, and the balance being Fe and incidental impurities. The austenitic stainless steel has a ?-ferrite content less than 8.5 and equal to 6.77[(d)+(h)+1.5(b)]?4.85[(e)+30(a)+30(f)+0.5(c)+0.3(g)]?52.75.Type: GrantFiled: October 3, 2007Date of Patent: August 24, 2010Assignee: Yieh United Steel Corp.Inventors: Meng-Hsin Hsieh, Yi-Cheng Wu, Pei-Te Huang, Hao-Shang Liu
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Publication number: 20090010793Abstract: A method for producing cold-formable, high-strength steel strips or sheets with TWIP properties, wherein in successive working steps are carried out without interruption, uses a molten material of the following composition (mass %): C: 0.003-1.50%, Mn: 18.00-30.00%, Ni: ?10.00%, Si: ?8.00%, Al: ?10.00%, Cr: ?10.00%, N: ?0.60%, Cu: ?3.00%, P: ?0.40%, S: ?0.15%, selectively one or more components from the Se, Te, V, Ti, Nb, B, REM, Mo, W, Co, Ca and Mg group provided that the total content of Se, Te is ?0.25%, the total content of V, Ti, Nb, B, REM is ?4.00%, the total content of Mo, W, Co is ?1.50% and the total content of Ca, Mg is ?0.50%, the rest being iron and melting conditioned impurities, wherein the content of Sn, Sb, Zr, Ta and As, whose total content is equal to or less than 0.30% is included in said impurities.Type: ApplicationFiled: November 3, 2004Publication date: January 8, 2009Applicant: THYSSENKRUPP STEEL AGInventors: Jens-Ulrik Becker, Harald Hofmann, Manfred Menne, Jochen Wans
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Publication number: 20030033904Abstract: These connecting rods are made from prealloyed manganese, sulfur, ferrous based powder. The prealloyed powder then is mixed with copper and carbon. The copper content is at higher than normal copper contents. The resulting forged connecting rods had an improvement in tensile strength and an improvement in fatigue strength.Type: ApplicationFiled: July 31, 2001Publication date: February 20, 2003Inventor: Edmond Ilia
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Patent number: 5891388Abstract: An Fe--Mn Vibration Damping alloy steel having a superior tensile strength is disclosed. The alloy steel consists of, by weight percent: 10 to 24% of Manganese(Mn); up to 0.2% of carbon(C); at least one element selected from the group consisting of 0.1 to 2.0% of Titanium(Ti), 0.1 to 2.0% of Molybdenium(Mo), 0.1 to 1.0% of Vanadium(V), and 0.1 to 0.7% of Tungsten(W), the element increasing a tensile strength of the vibration damping alloy steel; and remaining iron(Fe) and incidental impurities. Further, an Fe--Mn vibration damping alloy steel having a good corrosion resistance is disclosed. The alloy steel consists of, by weight percent: 10 to 24% of Manganese(Mn); up to 0.2% of carbon(C); at least one element selected from the group consisting of 0.1 to 4.5% of Chromium(Cr), 0.1 to 1.5% of Copper(Cu), and 0.1 to 1.1% of Niobium (Nb), the element increasing a corrosion resistance of the vibration damping alloy steel; and remaining iron (Fe) and incidental impurities.Type: GrantFiled: November 13, 1997Date of Patent: April 6, 1999Assignee: Woojin Inc.Inventors: Seung-Han Baik, Yong-Chul Son, Jung-Chul Kim, Dong-Woon Han
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Patent number: 5252148Abstract: A soft magnetic alloy having a composition of general formula:(Fe.sub.1-a Ni.sub.a).sub.100-x-y-z-p-q Cu.sub.x Si.sub.y B.sub.z Cr.sub.p M.sup.1.sub.q (I)wherein M.sup.1 is V or Mn or a mixture of V and Mn, 0.ltoreq.a.ltoreq.0.5, 0.1.ltoreq.x.ltoreq.5, 6.ltoreq.y.ltoreq.20, 6.ltoreq.z.ltoreq.20, 15.ltoreq.y+z.ltoreq.30, 0.5.ltoreq.p.ltoreq.10, and 0.5.ltoreq.q.ltoreq.10 and possessing a fine crystalline phase is suitable as a core, especially a wound core and a compressed powder core.Type: GrantFiled: August 10, 1992Date of Patent: October 12, 1993Assignee: TDK CorporationInventors: Masao Shigeta, Asako Kajita, Ippo Hirai, Tsutomu Choh
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Patent number: 4875933Abstract: This invention describes the melting of Fe-Mn-Al Alloys and includes production methods such as non-continuous casting, continuous casting, hot forging, hot rolling, cold rolling, surface finishing, and heat treating. Products produced using one or more of the above said methods include case ingot, billet, bloom, slab, cast piece, hot-rolled plate, hot-rolled coil, bar, rod, cold-rolled strip and sheet, and hot-forged piece. The said alloys consist principally of by weight 10 to 35 percent Mn, 4 to 12 percent Al, 0 to 12 percent Cr, 0.01 to 1.4 percent C, 0.3-1.5 Mo, 0.1-1% S, a small amount of Cu, Nb, V, CO, Ti, B, N, Zr, Hf, Ta, Sc, W, and Ni, and the balanced Fe.Type: GrantFiled: July 8, 1988Date of Patent: October 24, 1989Assignee: Famcy Steel CorporationInventor: Chi-Meen Wan
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Patent number: 4847046Abstract: A new Fe-Mn-Al-C-Nb-Si-Cu alloy for use in ultra-low temperature materials is provided. The alloy has the following composition: 25 to 35 percent by weight manganese, 2 to 10 percent by weight aluminum, 0.1 to 0.8 percent by weight carbon, 0.01 to 0.2 percent by weight niobium, 0.05 to 0.5 percent by weight silicon, 0.05 to 1.0 percent by weight copper and the balance of iron. The alloy is manufactured by controlled rolling the ingot containing the elemental constituents, and has a tensile strength of above 350 MPa, an elongation of 40%, and a toughness of above 100 joules at -196.degree. C.Type: GrantFiled: September 2, 1986Date of Patent: July 11, 1989Assignee: Korea Advanced Institute of Science and TechnologyInventors: Young-Gil Kim, Jae-Kwang Han
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Patent number: 4637843Abstract: The present invention relates to the core of a noise filter.Conventionally, ferrite or iron powder is used as the core of a noise filter. Some patent publications disclose the core of a noise filter made of an amorphous magnetic alloy.An amorphous magnetic alloy which as a low pulse-noise resistance deterioration percentage is that on or within the curve X and Y of FIG. 3.Type: GrantFiled: May 3, 1985Date of Patent: January 20, 1987Assignee: TDK CorporationInventors: Suguru Takayama, Masao Shigeta