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公开(公告)号：US20220176490A1
公开(公告)日：2022-06-09
申请号：US17442920
申请日：2020-03-06
发明人： Hua PAN , Chengjie LIU , Ming LEI , Yue WU , Zhongqu SUN , Haomin JIANG
IPC分类号： B23K26/24 , B23K26/322 , B23K26/323 , B23K26/12 , B23K9/173 , B23K35/30 , C22C38/58 , C22C38/44 , C22C38/32 , C22C38/28 , C22C38/06 , C22C38/02 , C22C38/00
摘要： Disclosed is a method for manufacturing an equal-strength steel thin-wall welding component with an aluminum or aluminum-alloy plating, wherein the plating comprises an intermetallic compound alloy layer in contact with the base body and a metal alloy layer on the intermetallic compound alloy layer; the plating is not removed or thinned before or during welding; and by presetting a welding gap and using a carbon-manganese-steel welding wire, a welding process and protective gas for welding, the tensile strength of a welding seam of the welding component after hot stamping processing is greater than the tensile strength of a base metal, and the elongation of a welded joint is greater than 4% Further disclosed are a welding wire for welding and an equal-strength steel thin-wall welding component with an aluminum or aluminum-alloy plating.
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公开(公告)号：US20220072592A1
公开(公告)日：2022-03-10
申请号：US17417225
申请日：2019-11-14
发明人： Xiaojun LIANG , Sihai JIAO , Jianhua DING , Xiangqian YUAN , Qing SHI , Wanxiao LAI , Suoquan ZHANG , Zhiyu WANG , Yingmin HAO , Xiaoyong TAO
摘要： Disclosed are a corrosion-resistant marine composite steel plate and a manufacturing method therefor. The corrosion-resistant composite steel plate has a two-layer structure, wherein one layer is duplex stainless steel, and the other layer is marine carbon steel; said duplex stainless steel comprises the following components by weight: C≤0.03%, Mn≤2.00%, Si≤1.00%, Cr: 21.0-23.0%, Ni: 4.5-6.5%, Mo: 2.5-3.5%, N: 0.08-0.20%, P≤0.02%, S≤0.025%, and the balance being Fe and inevitable impurities; and said marine carbon steel comprises the following components by weight: 0.03%≤C≤0.13%, Si≤0.50%, Mn: 0.90-1.60%, P≤0.020%, S≤0.025%, Cu≤0.035%, Cr≤0.20%, Ni≤0.40%, Nb: 0.02-0.05%, Ti≤0.02%, Mo≤0.08%, Al≥0.015%, and the balance being Fe and inevitable impurities. A rolled composite steel plate is produced by using a double-barrier vacuum assembly method, so that a reduction in structure weight is achieved while a good structural strength and an excellent corrosion resistance are obtained
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公开(公告)号：US11268163B2
公开(公告)日：2022-03-08
申请号：US16311376
申请日：2017-06-19
发明人： Huanrong Wang , Ana Yang , Jiansu Zhang , Wei Wang
IPC分类号： C21D9/46 , C22C38/06 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： A 980 MPa-grade hot-rolled dual-phase steel and a manufacturing method therefor. The chemical components of the steel comprise, in percentage by weight, 0.10%-0.20% of C, 0.8%-2.0% of Si, 1.0%-2.0% of Mn, 0-0.02% of P, 0-0.005% of S, 0-0.003% of O, 0.02%-0.06% of Al, 0-0.006% of N, 0.01%-0.06% of Nb, 0.01%-0.05% of Ti, and the balance of Fe and inevitable impurities. In addition, the components need to meet the following relation: 0.05%≤Nb+Ti≤0.10. The microstructure of the steel is made of ferrite and martensite. The average grain size of the ferrite is 5-10 μm, and the equivalent grain size of the martensite is 15-20 μm. The yield strength of the steel is greater than or equal to 500 MPa, the tensile strength of the steel is greater than or equal to 980 MPa, and the ductility A80 is greater than or equal to 12%; the steel has excellent strength, ductility and tenacity matching and a relatively low yield ratio, and can be applied to parts requiring good formability, high strength and reduced thickness, such as wheels.
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94.发明授权公开(公告)号：US11248298B2
公开(公告)日：2022-02-15
申请号：US15779246
申请日：2016-11-29
发明人： Peng Li , Renyun Yan , Junsheng Wei , Binghu Li
摘要： Provided are a chromium-free surface-treated tinplate, a production method and a surface treating agent thereof. By coating, on the surface of a tinplate, an environmentally friendly aqueous surface treating agent containing 0.1-5 wt % of a zinc salt, 0.1-5 wt % of a zirconium salt and/or a molybdenum salt and 5-30 wt % of siloxane or polysiloxane, a layer of chromium-free passivation film having uniform and dense ingredients and a good performance and being stable is formed on the surface of a tin layer. The passivation film contains 0.1-20 mg/m2 of zinc, 0.1-20 mg/m2 of zirconium and/or molybdenum and 0.5-100 mg/m2 silicon. The passivation film can impart an excellent surface stability, corrosion resistance and paint film adhesion performance to the surface of the tinplate; in addition, contact with food is safe. The tinplate is comparable to chromium passivation in performance, and the production process thereof does not use a chromate, so that a truly green production process of a tinplate is achieved, complying with the requirements of increasingly strict environmental protection laws and regulations.
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公开(公告)号：US20220010401A1
公开(公告)日：2022-01-13
申请号：US17296303
申请日：2019-11-29
发明人： Peng XUE , Xiaodong ZHU , Wei LI
IPC分类号： C21D9/46 , C22C38/38 , C22C38/28 , C22C38/22 , C22C38/06 , C22C38/02 , C22C38/00 , C21D8/02 , C21D6/00
摘要： Disclosed is a 980 MPa grade cold-roll steel sheets with high hole expansion rate and higher percentage elongation, and manufacturing method thereof. The mass percents of chemical components in the steel sheet are: C: 0.08%-0.12%, Si: 0.1%-1.0%, Mn: 1.9%-2.6%, Al: 0.01%-0.05%, Cr: 0.1-0.55%, Mo: 0.1-0.5%, Ti: 0.01-0.1%, the rest being Fe and other inevitable impurities. The steel plate has a yield strength >600 MPa, a tensile strength >980 MPa, a percentage elongation >11%, a hole expansion rate ≥45%, and a tensile strength up to 980 MPa grade; the microscopic structure is ferrite plus bainite plus martensite, with the volume fraction content of ferrite >10%, the volume fraction content of bainite >30%, and the volume fraction content of martensite >15%; the microscopic structure further comprises nanoscale precipitates in uniform dispersion distribution, the average size of precipitates being less than 20 nm.
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96.发明授权公开(公告)号：US11207729B2
公开(公告)日：2021-12-28
申请号：US17271041
申请日：2019-08-16
发明人： Rongjun Xu , Junjiang Liu , Genjie Wan , Chengbin Li , Xiangchun Liu , Qingyu Meng
IPC分类号： B22D11/20 , B22D11/12 , B22D11/128
摘要： Disclosed is a light reduction method for continuous casting of a bloom plain-barrelled roll-roll combination. The method comprises: firstly obtaining three-dimensional temperature field profile, a two-phase region, solid-phase region thickness, and solid-phase fraction of a billet, determining positions of start and end rolls of the reduction, and setting a reduction amount of each tensioner roll according to the volume shrinkage of the billet; in an interval fs=0.9-1.0 of the solid-phase fraction of the billet, performing a heavy reduction working mode; and in an interval fs=0.25-0.80 of the solid-phase fraction of the billet, performing a light reduction working mode.
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公开(公告)号：US20210395448A1
公开(公告)日：2021-12-23
申请号：US17277495
申请日：2019-09-19
发明人： Long XIE , Zhangwei WANG , Hua NI
IPC分类号： C08G63/688 , B32B27/36 , B32B27/20 , B32B15/18 , B32B15/09 , B65D65/40 , C08G63/80 , C08J5/18 , C08K3/36
摘要： The present invention provides laminated iron having excellent printability and a preparation method therefor. The laminated iron is prepared by using a mode of performing thermal-compounding on a polyester thin film having a durable and high surface tension force and a steel plate, wherein the polyester thin film is prepared by copolymerizing terephthalic acid, isophthalic acid, ethylene glycol and a fourth component and then bidirectionally stretching a co-polymer; a feeding mole ratio is that terephthalic acid:isophthalic acid:ethylene glycol:a fourth component=(135-165):(148-194):(11-15):(0.01-12); the fourth component is selected from one or more of isophthalic-5-sulfonate, 1,4-cyclohexane dimethanol, neo-pentanediol and trimellitic acid; and 800-2000 ppm of SiO2 in parts by mass is added to a copolymerized polyester by using a mode of in-situ polymerization. The laminated iron has excellent printability and satisfies usage requirements of packaging containers for food, beverage and the like.
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公开(公告)号：US20210379868A1
公开(公告)日：2021-12-09
申请号：US17278052
申请日：2019-09-18
发明人： Long XIE , Hongxing CHEN , Jingge DAI
IPC分类号： B32B15/09 , B32B15/18 , B32B27/36 , B32B27/08 , B32B37/04 , B32B37/06 , B32B37/18 , B29C48/00 , B29C48/08 , B29C48/21 , B29C55/00 , B29C55/12 , B65D65/40 , C08G63/199
摘要： A double-layer polyester film is of a structure having upper and lower layers. Each of the upper and lower layers comprises a copolyester and an additional resin, and is a uniform mixture of the copolyester and the additional resin. The copolyester comprises SiO2 having a mass fraction of 800-2000 ppm added by means of in-situ polymerization. The copolyester is a PET polyester modified by copolymerization of isophthalic acid, 1,4-cyclohexanedimethanol, and neopentyl glycol. The polyester film has thinner thickness, good thermal adhesion with a metal sheet, excellent resistance to deep drawing and complex deformation processing, and excellent corrosion resistance, and can be widely used in metal packaging industry.
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99.发明申请公开(公告)号：US20210347545A1
公开(公告)日：2021-11-11
申请号：US17277479
申请日：2019-09-19
发明人： Long XIE , Zhangwei WANG , Hua NI , Xiujun LI , Hongxing CHEN
IPC分类号： B65D65/40 , B29C48/08 , B29C48/21 , B32B27/08 , B32B27/36 , B32B27/20 , B32B15/09 , B32B15/18 , B32B15/20 , B65D6/00 , C08L67/02 , C08J5/18
摘要： A blended polyester laminating film resistant to discoloration caused by cooking, comprising polyethylene terephthalate and polybutylene terephthalate. The blended polyester laminating film comprises three layers, i.e., upper, middle, and lower layers. One surface layer contains SiO2 in a mass fraction of 1200-2000 ppm added by in-situ polymerization. The blended polyester laminating film is manufactured by a three-layer coextrusion biaxial stretching method, and the manufacturing method is 240-275° C. A film-laminated metal sheet manufactured from the blended polyester laminating film has excellent resistance to discoloration caused by cooking, and is applied to metal containers for food and beverage packaging that require high-temperature sterilization.
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100.发明授权公开(公告)号：US11167370B2
公开(公告)日：2021-11-09
申请号：US16342263
申请日：2017-09-30
发明人： Ming Lei , Hua Pan , Dungui Zuo , Yongchao Su , Haomin Jiang , Lei Shi
摘要： A resistance spot welding method of galvanized high-strength steel with good joint performance, in which three welding pulses are used within one spot welding schedule. The method includes applying a first welding pulse and a second welding pulse which are used for generating a nugget and suppressing the generation of liquid metal embrittlement (LME) cracks, respectively. The first welding pulse generates a nugget having a diameter of 3.75T1/2-4.25T1/2 in which T represents a plate thickness. The second welding pulse causes the nugget to grow at a rate less than a rate of growth during the first welding pulse. A third welding pulse, which is a tempering pulse, is applied for improving plasticity of a welding spot.
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