公开(公告)号：US10741326B2

公开(公告)日：2020-08-11

申请号：US15742531

申请日：2016-07-12

申请人： NINGBO YUNSHENG CO., LTD. ,  NINGBO YUNSHENG MAGNET DEVICES TECHNOLOGY CO., LTD.

发明人： Xiangke Lv ,  Chunguo Wang ,  Min Zhang ,  Yong Ding ,  Qingzhong Yang ,  Yiqun Hu ,  Jiangfeng Wang

IPC分类号： H01F41/02 ,  H01F1/057 ,  C23C12/02 ,  C21D3/06

摘要： A method for improvement of magnetic performance of sintered NdFeB magnet includes the following steps. Firstly, material containing element R, H and X is to be covered on a surface of the sintered NdFeB magnet to form a finish coat. After that, proceed with a diffusion treatment and an aging treatment to the sintered NdFeB magnet with the finish coat in the environment of vacuum or inert gas. R is at least one of such elements as Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. H is hydrogen. X is at least one of such elements as C, O, N, S, B, Cl and Si.

公开(公告)号：US10207796B2

公开(公告)日：2019-02-19

申请号：US15198343

申请日：2016-06-30

申请人： SAFRAN LANDING SYSTEMS

发明人： Sacha Mierzejewski ,  Romain Ottenio

IPC分类号： B64C25/34 ,  C22C18/00 ,  B64C25/58 ,  C21D3/06 ,  C23C22/05 ,  C25D3/56 ,  C25D5/36 ,  C25D5/48 ,  C25D5/50

摘要： A landing gear (1) for aircraft comprising a first pair of first and second parts (7, 8, 7′, 8′), said first part (7, 7′) having a steel substrate and a sliding layer (C, C′) formed on this substrate, the second part (8, 8′) being in sliding contact against said sliding layer (C, C′) with a maximum rectilinear sliding amplitude (G, G′) of less than 0.5 mm, the sliding layer (C, C′) being adapted to support a surface pressure in excess of 50 MPa.The sliding layer (C, C′) is a zinc and nickel alloy comprising, in terms of percentage by weight of the alloy, between 12% and 18% nickel and the first part has a protective layer (P, P′) against corrosion extending from the sliding layer (C, C′), this protective layer (P, P′) being formed of said zinc and nickel alloy.

公开(公告)号：US10011885B2

公开(公告)日：2018-07-03

申请号：US15018337

申请日：2016-02-08

申请人： ATI PROPERTIES LLC

发明人： Richard L. Kennedy ,  Robert M. Davis ,  Rex W. Bradley ,  Robin M. Forbes Jones

IPC分类号： C21D3/06 ,  B22D21/02 ,  C21D1/773 ,  C21D8/00 ,  C22C1/02 ,  C22C1/06 ,  C22C14/00 ,  C22F1/18

摘要： A method of producing an article selected from a titanium article and a titanium alloy article comprises melting feed materials with a source of hydrogen to form a molten heat of titanium or a titanium alloy, and casting at least a portion of the molten heat to form a hydrogenated titanium or titanium alloy ingot. The hydrogenated ingot is deformed at an elevated temperature to form a worked article comprising a cross-sectional area smaller than a cross-sectional area of the hydrogenated ingot. The worked article is dehydrogenated to reduce a hydrogen content of the worked article. In certain non-limiting embodiments of the method, the dehydrogenated article comprises an average α-phase particle size of less than 10 microns in the longest dimension.

公开(公告)号：US20180010241A1

公开(公告)日：2018-01-11

申请号：US15713834

申请日：2017-09-25

申请人： JX Nippon Mining & Metals Corporation

发明人： Kenichi Nagata ,  Nobuhito Makino

IPC分类号： C23C14/34 ,  C22F1/18 ,  C21D1/74 ,  C22C27/02 ,  C22C14/00 ,  C21D3/06 ,  H01J37/34 ,  C22F1/00

CPC分类号： C23C14/34 ,  C21D1/74 ,  C21D3/06 ,  C22C14/00 ,  C22C27/02 ,  C22F1/00 ,  C22F1/18 ,  C22F1/183 ,  C23C14/3414 ,  C23C14/3471 ,  H01J37/3426 ,  H01J37/3464 ,  H01J37/3491 ,  H01J37/3497 ,  Y10T29/49865

摘要： A sputtering target and/or a coil disposed at a periphery of a plasma-generating region for confining plasma are provided. The target and/or coil has a surface to be eroded having a hydrogen content of 500 μL/cm2 or less. In dealing with reduction in hydrogen content of the surface of the target and/or coil, a process of producing the target and/or coil, in particular, conditions for heating the surface of the target and/or coil, which is believed to be a cause of hydrogen occlusion, are appropriately regulated. As a result, hydrogen occlusion at the surface of the target can be reduced, and the degree of vacuum during sputtering can be improved. Thus, a target and/or coil is provided that has a uniform and fine structure, makes plasma stable, and allows a film to be formed with excellent uniformity. A method of producing the target and/or the coil is also provided.

公开(公告)号：US20170250016A1

公开(公告)日：2017-08-31

申请号：US15440755

申请日：2017-02-23

申请人： TDK CORPORATION

发明人： Masashi MIWA ,  Takurou IWASA

IPC分类号： H01F1/057 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C21D3/06 ,  B22F9/04 ,  B22F3/16 ,  B22F5/00 ,  B22D11/00 ,  C22C38/16 ,  C22C38/00

CPC分类号： H01F1/0577 ,  B22D11/001 ,  B22F3/16 ,  B22F5/00 ,  B22F9/04 ,  B22F2009/042 ,  B22F2009/044 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2301/355 ,  B22F2998/10 ,  C21D3/06 ,  C22C33/0278 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/058

摘要： An R-T-B based permanent magnet includes main phase grains composed of R2T14B type compound. R is a rare earth element. T is iron group element(s) essentially including Fe or Fe and Co. B is boron. An average grain size of the main phase grains is 0.8 μm or more and 2.8 μm or less. The R-T-B based permanent magnet contains at least C and Zr in addition to R, T, and B. B is contained at 0.75 mass % or more and 0.88 mass % or less. Zr is contained at 0.65 mass % or more and 5.00 mass % or less. A formula (1) of 5.0≦[B]+[C]−[Zr]≦5.6 is satisfied, where [B] is a B content represented by atom %, [C] is a C content represented by atom %, and [Zr] is a Zr content represented by atom %.

公开(公告)号：US20170140855A1

公开(公告)日：2017-05-18

申请号：US15344245

申请日：2016-11-04

申请人： TDK CORPORATION

发明人： Atsushi TADA

IPC分类号： H01F1/053 ,  C22C38/16 ,  C22C38/10 ,  B22F3/16 ,  C21D3/06 ,  C21D1/74 ,  B22F9/04 ,  H01F1/08 ,  C22C38/00

CPC分类号： H01F1/0536 ,  B22F3/16 ,  B22F9/04 ,  B22F2009/044 ,  B22F2201/02 ,  B22F2202/05 ,  B22F2998/10 ,  B22F2999/00 ,  C21D1/74 ,  C21D3/06 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C38/16 ,  H01F1/0577 ,  H01F1/08 ,  B22F3/087 ,  B22F3/1007 ,  B22F2201/20 ,  B22F9/023 ,  B22F1/0085 ,  B22F2009/042 ,  B22F2003/248

摘要： An R-T-B based sintered magnet includes R2T14B crystal grains. A grain boundary formed by the two or more adjacent R2T14B crystal grains includes an R—N—O—C concentrated part having higher concentrations of “R”, N, O, and C than those in the R2T14B crystal grains. “R” of the R—N—O—C concentrated part includes Y. A ratio of Y atom to “R” atom in the R—N—O—C concentrated part is 0.65 or more and 1.00 or less. A ratio of O atom to “R” atom in the R—N—O—C concentrated part is more than 0 and 0.20 or less. A ratio of N atom to “R” atom in the R—N—O—C concentrated part is 0.03 or more and 0.15 or less.

公开(公告)号：US20170001716A1

公开(公告)日：2017-01-05

申请号：US15198343

申请日：2016-06-30

申请人： SAFRAN LANDING SYSTEMS

发明人： Sacha MIERZEJEWSKI ,  Romain OTTENIO

IPC分类号： B64C25/34 ,  C25D3/56 ,  C25D5/36 ,  C23C22/05 ,  C25D5/50 ,  C22C18/00 ,  C21D3/06 ,  B64C25/58 ,  C25D5/48

CPC分类号： B64C25/34 ,  B64C25/58 ,  C21D3/06 ,  C22C18/00 ,  C23C22/05 ,  C25D3/565 ,  C25D5/36 ,  C25D5/48 ,  C25D5/50

摘要： A landing gear (1) for aircraft comprising a first pair of first and second parts (7, 8, 7′, 8′), said first part (7, 7′) having a steel substrate and a sliding layer (C, C′) formed on this substrate, the second part (8, 8′) being in sliding contact against said sliding layer (C, C′) with a maximum rectilinear sliding amplitude (G, G′) of less than 0.5 mm, the sliding layer (C, C′) being adapted to support a surface pressure in excess of 50 MPa.The sliding layer (C, C′) is a zinc and nickel alloy comprising, in terms of percentage by weight of the alloy, between 12% and 18% nickel and the first part has a protective layer (P, P′) against corrosion extending from the sliding layer (C, C′), this protective layer (P, P′) being formed of said zinc and nickel alloy.

摘要翻译： 滑动层（C，C'）是锌和镍合金，以合金的重量百分比计含有12％至18％的镍，第一部分具有防腐蚀的保护层（P，P'） 从滑动层（C，C'）延伸，该保护层（P，P'）由所述锌和镍合金形成。

公开(公告)号：US5498299A

公开(公告)日：1996-03-12

申请号：US319166

申请日：1994-10-06

申请人： Hans-Peter Schmidt

发明人： Hans-Peter Schmidt

IPC分类号： C21D1/76 ,  C21D3/06 ,  C23C8/22 ,  C21D9/00 ,  C21D1/74

CPC分类号： C21D3/06 ,  C23C8/22 ,  C21D1/76

摘要： The surface oxidation under carburization temperatures of steels during the carburization with carbon-containing gas mixtures is avoided by heating the steels to the carburization temperature under a nitrogen/hydrogen mixture or pure hydrogen. For carburization, these gases are replaced by a carbon-containing gas mixture whose oxygen activity is smaller than that required for the formation of manganese(II) oxide or chromium(III) oxide.

摘要翻译： 通过在氮/氢混合物或纯氢气下将钢加热到渗碳温度来避免含碳气体混合物渗碳期间钢的渗碳温度下的表面氧化。 对于渗碳，这些气体被含氧气体混合物代替，其氧活性小于形成氧化锰（II）或氧化铬（III）所需的氧活性。

公开(公告)号：US5116469A

公开(公告)日：1992-05-26

申请号：US302251

申请日：1989-01-27

申请人： Joseph Yahalom

发明人： Joseph Yahalom

IPC分类号： C21D3/06

CPC分类号： C21D3/06

摘要： A method is described for treating high strength metals selected from zirconium, titanium and alloyed steels, against hydrogen embrittlement. The method involves the immersion of the metal in an electrolyte solution and subjecting it to an anodic potential having a value of up to 600 volts on the hydrogen scale. According to a preferred embodiment prior to the immersion, the metal is coated with a substance possessing a low hydrogen over-potential and high affinity towards hydrogen. The method removes continuously or periodically the hydrogen from the metal by anodic oxidation and minimizes the penetration of hydrogen into the core of the metal.

摘要翻译： 描述了一种用于处理选自锆，钛和合金钢的高强度金属以防止氢脆化的方法。 该方法包括将金属浸入电解质溶液中，并使其在氢气尺度上具有高达600伏特值的阳极电位。 根据浸渍之前的优选实施方案，金属被具有对氢的低氢过电位和高亲和力的物质涂覆。 该方法通过阳极氧化连续或周期地从金属中除去氢，并最大限度地减少氢气进入金属芯体。

公开(公告)号：US4475963A

公开(公告)日：1984-10-09

申请号：US231913

申请日：1981-02-05

申请人： Eiji Takahashi ,  Kenji Iwai

发明人： Eiji Takahashi ,  Kenji Iwai

IPC分类号： B23K31/00 ,  C21D3/06 ,  C21D9/50 ,  C21D11/00

CPC分类号： C21D11/00 ,  C21D3/06 ,  C21D9/50

摘要： A method for postweld heat treatment (hereinafter referred to as PWHT) for multilayer welding, in which the terminating point of the PWHT is correctly judged to preclude cracking due to insufficient treatment or uneconomical excessive treatment, the method including the steps of determining the residual hydrogen concentration directly beneath the final welded layer immediately after completion of welding determining a crack-preventing critical hydrogen concentration to obtain a ratio of the critical hydrogen concentration to the residual hydrogen concentration determining the value of a product of a hydrogen diffusivity coefficient during the heat treatment and a holding time where a hydrogen concentration currently occurring in the heat treatment reaches the critical hydrogen concentration, on the basis of the relation of a ratio of the current hydrogen concentration to the residual hydrogen concentration and a sum of a parameter of hydrogen diffusion to be determined depending upon the welding conditions and the above-mentioned product measuring the temperature of the heat treatment at a suitable point of the weld, and terminating the heat treatment at a point in time when a time-integrated value of a hydrogen diffusivity coefficient at the measured temperature exceeds the value of the above-mentioned product.

摘要翻译： 一种用于多层焊接的焊后热处理方法（以下称为PWHT），其中正确地判断PWHT的端接点由于处理不足或不经济的过度处理而排除开裂，该方法包括以下步骤：确定残留氢 在完成焊接之后直接在最终焊接层下面的浓度确定了防裂临界氢浓度以获得临界氢浓度与剩余氢浓度之比，确定热处理期间氢扩散系数的乘积值，以及 基于当前氢浓度与残留氢浓度的比率与氢扩散参数之和的关系，在热处理中目前发生的氢浓度达到临界氢浓度的保持时间 取决于t 焊接条件和上述产品测量焊缝合适点处的热处理温度，并且在测量温度下的氢扩散系数的时间积分值超过时终止热处理 上述产品的价值。