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1.发明公开公开(公告)号：US20240133490A1
公开(公告)日：2024-04-25
申请号：US18547172
申请日：2022-02-25
发明人： Wen SUN , Yaoheng LIU , Zhonghua ZHANG , Ping HU , Yannan MA
IPC分类号： F16L9/02 , C21D1/84 , C21D6/00 , C21D8/10 , C21D9/08 , C22C33/04 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12
CPC分类号： F16L9/02 , C21D1/84 , C21D6/005 , C21D6/008 , C21D8/105 , C21D9/085 , C22C33/04 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C21D2211/002
摘要： The present disclosure provides a bainite geological drilling pipe, comprising the following chemical elements in percentage by mass: 0.14-0.22% of C, 0.2-0.55% of Si, 2.1-2.9% of Mn, 0.01-0.04% of Nb, 0.015-0.04% of Al, 0.001-0.005% of B, 0
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公开(公告)号：US11968766B2
公开(公告)日：2024-04-23
申请号：US16972080
申请日：2019-08-02
发明人： Xiaoli Jin , Dengfeng Li , Yueming Zhou , Bo Wang , Guobao Li
CPC分类号： H05B6/103 , B29C65/368 , H05B6/06 , H05B6/14 , H05B6/36
摘要： An induction heating system for a silicon steel core with a self-adhesive coating that includes an induction heating device having a columnar induction heating coil with a hollow cavity that carries out induction heating on a silicon steel plate at a medium frequency of 6-20 KHz. By rapid induction heating at a medium frequency, a silicon steel core with a self-adhesive coating can be rapidly cured, thereby greatly shortening the processing time, improving production efficiency, and facilitating automated operation in the production of a silicon steel core with a self-adhesive coating. The system also ensures the quality of the cured core products that can be widely applied in the field of the production of silicon steel cores with a self-adhesive coating.
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公开(公告)号：US20240093342A1
公开(公告)日：2024-03-21
申请号：US18262156
申请日：2021-12-23
发明人： Ning TAN , Hao LIU , Xinyan JIN
IPC分类号： C23C2/12 , C21D8/00 , C21D9/00 , C22C38/00 , C22C38/06 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C23C2/28 , C23C2/40
CPC分类号： C23C2/12 , C21D8/005 , C21D9/0081 , C22C38/002 , C22C38/06 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C23C2/29 , C23C2/40
摘要： Disclosed in the present invention is an aluminum plated steel sheet, comprising a substrate and a plating layer on the surface of the substrate. The microstructure of the plating layer comprises a Mg2Si phase and an AlMgSiFe phase; and an average grain diameter of the Mg2Si phase is 0.001-5 μm. The present invention can alleviate the problem of melting-induced roller sticking and hydrogen embrittlement risk in a thermoforming process of the aluminum plated steel sheet. The present invention further provides a manufacturing method for the aluminum plated steel sheet, and a thermoformed component and a manufacturing method therefor.
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公开(公告)号：US20240071661A1
公开(公告)日：2024-02-29
申请号：US18259898
申请日：2022-01-11
发明人： Meihong WU , Guobao LI , Shuangjie CHU , Zipeng ZHAO , Baojun LIU , Kanyi SHEN , Yongjie YANG , Zhuochao HU , Yaming JI , Chen LING
IPC分类号： H01F1/18 , C21D1/18 , C21D1/84 , C21D6/00 , C21D8/12 , C21D9/52 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06
CPC分类号： H01F1/18 , C21D1/18 , C21D1/84 , C21D6/005 , C21D6/008 , C21D8/1222 , C21D8/1233 , C21D8/125 , C21D8/1255 , C21D8/1261 , C21D8/1266 , C21D8/1283 , C21D9/52 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , B23K26/362 , C21D2201/05 , C22C2202/02
摘要： A manufacturing method for low-magnetostrictive oriented silicon steel is provided, wherein the oriented silicon steel comprises a silicon steel substrate and an insulating coating on the surface of the silicon steel substrate. The manufacturing method comprises: performing single-sided laser etching on the silicon steel substrate, wherein the side of the silicon steel substrate, on which single-sided laser etching is performed, is a first surface, and the side opposite to the first surface is a second surface; determining a deflection difference between the first surface and the second surface based on the power of the laser etching, and determining a difference in the amount of the insulating coatings on the first surface and the second surface based on the deflection difference; and forming insulating coatings on the first surface and the second surface. The amount of the insulating coating on the second surface is greater than that on the first surface, and the amount of the insulating coating on the first surface and that on the second surface satisfy the difference in the amount of the insulating coatings. By using the manufacturing method in the present invention, the problem of a relatively large magnetostrictive deviation between two sides of oriented silicon steel caused by single-sided laser etching can be solved. Oriented silicon steel manufactured by the aforementioned manufacturing method is also provided. A transformer iron core prepared using the oriented silicon steel enables a transformer to have low noise during operation.
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5.发明授权公开(公告)号：US11872614B2
公开(公告)日：2024-01-16
申请号：US17258230
申请日：2019-07-24
发明人： Kangjian Wang , Peilei Qu
CPC分类号： B21B37/007 , B21B45/0239 , B21B2037/002
摘要： An emulsion flow optimization method suitable for a cold continuous rolling mill that aims to achieve vibration suppression. The method aims to suppress vibrations by an oil film thickness model and a friction coefficient model. An optimum set value of the emulsion flow rate for each rolling stand that aims to achieve vibration suppression is optimized on the basis of an over-lubrication film thickness critical value and an under-lubrication film thickness critical value that are proposed. The method greatly reduces the incidence of rolling mill vibration defects, improves production efficiency and product quality, treats rolling mill vibration defects, and improves the surface quality and rolling process stability of a finished strip of a cold continuous rolling mill.
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6.发明公开公开(公告)号：US20230323502A1
公开(公告)日：2023-10-12
申请号：US18043100
申请日：2021-08-30
发明人： Huanrong WANG , Feng YANG , Chen ZHANG , Ana YANG , Yaping NI
IPC分类号： C21D9/52 , C22C38/58 , C22C38/54 , C22C38/50 , C22C38/46 , C22C38/44 , C22C38/42 , C22C38/38 , C22C38/34 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/24 , C22C38/22 , C22C38/20 , C22C38/16 , C22C38/14 , C22C38/12 , C22C38/08 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C22C33/04 , C21D6/00 , C21D1/84 , C21D8/02
CPC分类号： C21D9/52 , C22C38/58 , C22C38/54 , C22C38/50 , C22C38/46 , C22C38/44 , C22C38/42 , C22C38/38 , C22C38/34 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/24 , C22C38/22 , C22C38/20 , C22C38/16 , C22C38/14 , C22C38/12 , C22C38/08 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/002 , C22C38/001 , C22C33/04 , C21D6/001 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/008 , C21D1/84 , C21D8/0205 , C21D8/0226 , C21D8/0278 , C21D2211/002
摘要： A 980 MPa-grade full-bainite ultra-high hole expansion steel and a manufacturing method therefor. The hole expansion steel has the following chemical compositions in percentage by weight: 0.05-0.10% of C, Si≤2.0%, 1.0-2.0% of Mn, P≤0.02%, S≤0.003%, 0.02-0.08% of Al, N≤0.004%, 0.1-0.5% of Mo, 0.01-0.05% of Ti, O≤0.0030%, the remainder being Fe, and other inevitable impurities. The ultra-high hole expansion steel in the present invention has yield strength ≥800 MPa, tensile strength ≥980 MPa, and a hole expansion rate up to 60% or more, and can be applied in the parts of chassis components such as a control arm and an auxiliary frame, which require high strength thinning and complex forming, of passenger vehicles.
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公开(公告)号：US20230323500A1
公开(公告)日：2023-10-12
申请号：US18043036
申请日：2021-08-30
发明人： Huanrong WANG , Feng YANG , Chen ZHANG , Ana YANG , Mingzhou BAI , Yaping NI , Ming WANG
IPC分类号： C21D9/46 , C22C38/54 , C22C38/50 , C22C38/44 , C22C38/28 , C22C38/24 , C22C38/22 , C22C38/16 , C22C38/14 , C22C38/12 , C22C38/08 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C22C33/04 , C21D6/00 , C21D8/02 , C21D1/84
CPC分类号： C21D9/46 , C22C38/54 , C22C38/50 , C22C38/44 , C22C38/28 , C22C38/24 , C22C38/22 , C22C38/16 , C22C38/14 , C22C38/12 , C22C38/08 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/002 , C22C38/001 , C22C33/04 , C21D6/001 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0263 , C21D8/0278 , C21D1/84
摘要： A 780 MPa-grade ultra-high reaming steel having high surface quality and high performance stability, and a manufacturing method therefor. The ultra-high reaming steel comprises the following components in percentage by weight: 0.03-0.08% of C, Si≤0.2%, 0.5-2.0% of Mn, P≤0.02%, S≤0.003%, 0.01-0.08% of Al, N≤0.004%, 0.05-0.20% of Ti, 0.1-0.5% of Mo, Mg≤0.005%, O≤0.0030%, and the remainder being Fe and other inevitable impurities. The ultra-high reaming steel of the present invention achieves matching between good structure homogeneity and performance homogeneity and excellent strength, plasticity, and ultra-high reaming rate; the ultra-high reaming steel has yield strength greater than or equal to 750 MPa, tensile strength greater than or equal to 780 MPa, an elongation A50 greater than or equal to 15%, and a reaming rate greater than or equal to 70%; moreover, appearance of red iron scales on the surface of a steel plate can be avoided, thereby improving the surface quality of pickled high-strength steel; the ultra-high reaming steel can satisfy user requirements well, and can be applied to parts of passenger vehicle chassis components such as a control arm and an auxiliary frame, which require high strength and thinning.
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8.发明授权公开(公告)号：US11772153B2
公开(公告)日：2023-10-03
申请号：US17617663
申请日：2020-06-10
发明人： Hongquan Wen , Yueming Zhou , Cunyou Wu , Chao Hu , Xiaoli Jin , Xianjiu Zhao , Chunfeng Wang
IPC分类号： B22D11/115 , B22D11/22 , B22D11/124 , B22D11/12
CPC分类号： B22D11/115 , B22D11/122 , B22D11/1246 , B22D11/225
摘要： An electromagnetic stirring device and a method for a secondary cooling zone during slab continuous casting. The device has a main body, an opening adjustment assembly, and a secondary cooling assembly. The main body has a protection housing (3), a phase sequence control assembly, an iron core (4) and an electromagnetic coil (5) for carrying out variable-direction electromagnetic stirring on a molten steel by a three-phase current phase sequence transformation. The opening adjustment assembly has an air cylinder (7), a fixed base (8), a movable joint shaft (12) and a silicon steel sheet group insert (13) for adjusting online opening degree of the closed annular iron core by a movable joint structure. The secondary cooling assembly has a cooling water inlet (9) and a cooling water nozzle (10) for cooling the electromagnetic coil and spraying cooling water to a surface of a cast slab (1).
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9.发明公开公开(公告)号：US20230295784A1
公开(公告)日：2023-09-21
申请号：US18020999
申请日：2021-08-16
发明人： Zan YAO , Feng JIN , Ziquan YU , Zongze HUANG , Sixin ZHXO , Haoyang ZHAO , Ruiyin ZHAI
CPC分类号： C22C38/24 , C22C38/02 , C22C38/04 , C22C38/002 , C21D8/065 , C21D2211/008 , C21D2211/003
摘要： A high-strength and high-fatigue-life steel for a cable, which comprises, in addition to Fe, the following chemical elements in percentages by mass: 0.90-1.00% of C; 0.90-1.50% of Si; 0.25-0.58% of Mn; 0.20-1.00% of Cr; 0.03-0.12% of V; and 0.0008-0.0025% of Ca. In addition, further provided are a wire rod made of the high-strength and high-fatigue-life steel for a cable and a preparation method for the wire rod.
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公开(公告)号：US11707773B2
公开(公告)日：2023-07-25
申请号：US16493718
申请日：2018-01-31
发明人： Sihai Jiao , Bo Yan , Cheng Zhou
CPC分类号： B21C37/08 , B21B1/38 , B21C37/065 , B21C37/30 , B23K13/025 , B23K31/027 , B21B2001/383
摘要： A method for manufacturing a clad steel pipe is provided, wherein the clad steel pipe is manufactured by using a clad steel plate as a raw material. The clad steel plate comprises a base layer (1) and a clad layer (2) roll-bonded with the base layer (1). The method for manufacturing a clad steel pipe comprises the steps of forming, welding, and deburring; both sides of the clad steel plate are bent towards the base layer (1) side of the clad steel plate, then the forming step is carried out, and after the forming step, the opening faces of the resultant pipe blank are all in a form of the clad layer (2). According to the method for manufacturing a clad steel pipe, a clad steel pipe is manufactured by using a clad steel plate as a raw material. Thus, continuance and high efficiency of a high-frequency longitudinal welding pipe unit is fully utilized, subsequent non-continuous processes are not necessary, and the corrosion resistance at the weld of the clad steel pipe is ensured.
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