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1. 发明公开

EP2980815A1 SINTERED MAGNET PRODUCTION METHOD 审中-公开
标题翻译：烧结磁体生产方法
公开(公告)号：EP2980815A1
公开(公告)日：2016-02-03
申请号：EP14776522.6
申请日：2014-03-10
申请人： Intermetallics Co. Ltd.
发明人： KOMURA, Kazuyuki , SAGAWA, Masato
IPC分类号： H01F41/02 , B22F3/00 , B22F3/02 , C22C33/02 , H01F1/08 , H01F1/057
CPC分类号： H01F1/0577 , B22F1/0003 , B22F1/0014 , B22F1/0059 , B22F3/10 , B22F3/1017 , B22F9/04 , B22F2003/1032 , B22F2009/045 , B22F2301/355 , B22F2303/01 , B22F2304/058 , B22F2304/10 , B22F2999/00 , C22C32/0015 , C22C33/0228 , C22C33/0285 , C22C38/002 , C22C38/005 , C22C38/04 , C22C38/06 , C22C38/10 , C22C38/16 , C22C38/42 , C22C38/52 , C22C38/54 , C22C2202/02 , B22F3/1208 , B22F2202/05
摘要： The present invention addresses the problem of providing a sintered magnet production method capable of suppressing the growth of the particles of alloy powder during a sintering process. Provided is a sintered magnet production method including a filling process in which the cavity of a container is filled with an alloy powder of a raw material for a sintered magnet, an orienting process in which the alloy powder in the cavity is oriented by applying an magnetic field to the alloy powder without applying a mechanical pressure, and a sintering process in which the alloy powder oriented by the orienting process is sintered by heating the alloy powder without applying a mechanical pressure, the method being characterized in that: the median D 50 of a particle size distribution of the alloy powder measured by a laser diffraction method is 3 µm or less, and a powder of a high-melting-point material having a higher melting point than the heating temperature in the sintering process is mixed in the alloy powder before or in the filling process, where the median D 50 of the powder of the high-melting-point material is 0.3 µm or less.
摘要翻译：本发明解决了提供能够在烧结过程中抑制合金粉末颗粒生长的烧结磁体生产方法的问题。本发明提供一种烧结磁铁的制造方法，该烧结磁铁的制造方法包括：在容器的型腔内填充烧结磁铁用原料的合金粉末的填充工序;通过涂布磁铁在不施加机械压力的情况下对所述合金粉末施加电场，以及通过在不施加机械压力的情况下加热所述合金粉末来烧结通过所述取向工艺取向的所述合金粉末的烧结工艺，所述方法的特征在于：通过激光衍射法测定的合金粉末的粒度分布为3μm以下，将熔点比烧结工序中的加热温度高的高熔点材料的粉末混合到合金粉末中之前或者在填充过程中，高熔点材料的粉末的中值D50为0.3μm或更小。

2. 发明公开

EP0763605A3 Cemented carbide articles and master alloy composition 失效
标题翻译：硬质合金制品和母合金成分
公开(公告)号：EP0763605A3
公开(公告)日：1997-08-06
申请号：EP96305884.7
申请日：1996-08-12
申请人： NANODYNE INCORPORATED , RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
发明人： McCandish, Larry E. , Sadangi, Rajendra K.
IPC分类号： C22C29/06 , C22C29/08
CPC分类号： C22C29/08 , B22F9/026 , B22F2003/1032 , C22C1/051 , C22C29/067
摘要： A low melting point alloy is used to sinter metal carbide particles. The alloy is a eutectic-like alloy formed from a binding metal such as iron, cobalt or nickel, in combination with vanadium and chromium. The alloy is preferably formed by forming two separate alloys and blending these together. The first alloy is formed by spray drying together a solution of a binding metal salt such as a cobalt salt with a solution of a chromium salt. The formed particles are then carburized to form a cobalt-chromium-carbon alloy. A separate vanadium alloy is formed in the same manner. The two are combined to establish the amount of chromium and vanadium desired, and this, in turn, is used to sinter metal carbide parts. This permits sintering of the metal carbide parts at temperatures less than 1250° C and in turn significantly inhibits grain grown without a significant decrease in toughness. It is particularly adapted to form carbide products wherein the carbide grain size is as low as 120 nanometers.
摘要翻译：使用低熔点合金来烧结金属碳化物颗粒。该合金是由结合金属例如铁，钴或镍与钒和铬结合形成的共晶状合金。该合金优选通过形成两种单独的合金并将它们混合在一起而形成。第一合金通过将结合金属盐例如钴盐的溶液与铬盐溶液一起喷雾干燥而形成。然后将形成的颗粒渗碳形成钴 - 铬 - 碳合金。单独的钒合金以相同的方式形成。将两者结合起来以确定所需的铬和钒的量，并且这又用于烧结金属碳化物部件。这允许在低于1250℃的温度下金属碳化物部分的烧结，并且继而显着抑制晶粒生长而没有显着降低韧性。它特别适用于形成碳化物产品，其中碳化物晶粒尺寸低至120纳米。

3. 发明公开

EP1749599A1 METHODS FOR PRODUCING RAW MATERIAL ALLOY FOR RARE EARTH MAGNET, POWDER AND SINTERED MAGNET 有权转让
标题翻译： VERFAHREN ZUR HERSTELLUNG EINER ROHMATERIALLEGIERUNGFÜRSELTENERDMAGENTEN，PULVERMAGNETEN UND SINTERMAGNETEN
公开(公告)号：EP1749599A1
公开(公告)日：2007-02-07
申请号：EP05736734.4
申请日：2005-04-27
申请人： Neomax Co., Ltd.
发明人： Odaka, Tomoori, Yamazaki Works, Neomax Co., Ltd. , Kaneko, Yuji, Yamazaki Works, Neomax Co., Ltd.
IPC分类号： B22D11/06 , B22D11/00 , B22D11/01 , B22F9/04 , C21D6/00 , C22C33/02 , C22C38/00 , H01F1/053 , H01F41/02
CPC分类号： B22F9/023 , B22F9/002 , B22F2003/1032 , B22F2998/10 , B22F2999/00 , C21D1/19 , C22C1/0441 , C22C1/0491 , C22C33/0278 , C22C38/005 , H01F1/0577 , H01F1/058 , H01F1/059 , H01F41/0266 , B22F9/04 , B22F3/02 , B22F3/1035 , B22F2203/11
摘要： A method of making a material alloy for an R-T-Q based rare-earth magnet according to the present invention includes the steps of: preparing a melt of an R-T-Q based rare-earth alloy, where R is rare-earth elements, T is a transition metal element, Q is at least one element selected from the group consisting of B, C, N, Al, Si and P, and the rare-earth elements R include at least one element R L selected from the group consisting of Nd, Pr, Y, La, Ce, Pr, Sm, Eu, Gd, Er, Tm, Yb and Lu and at least one element R H selected from the group consisting of Dy, Tb and Ho; cooling the melt of the alloy to a temperature of 700 °C to 1,000 °C as first cooling process, thereby making a solidified alloy; maintaining the solidified alloy at a temperature within the range of 700 °C to 900 °C for 15 seconds to 600 seconds; and cooling the solidified alloy to a temperature of 400 °C or less as a second cooling process.
摘要翻译：根据本发明的制备用于RTQ基稀土磁体的材料合金的方法包括以下步骤：制备RTQ基稀土合金的熔体，其中R是稀土元素，T是过渡金属元素，Q是选自B，C，N，Al，Si和P中的至少一种元素，稀土元素R包括选自Nd，Pr，Y中的至少一种元素RL ，La，Ce，Pr，Sm，Eu，Gd，Er，Tm，Yb和Lu以及选自Dy，Tb和Ho中的至少一种元素RH; 将合金熔体冷却至700℃〜1000℃的温度作为第一冷却工序，由此形成固化合金; 将固化合金保持在700℃至900℃范围内的温度15秒至600秒; 并将固化的合金冷却至400℃以下的温度作为第二冷却工序。

4. 发明公开

EP1054071A2 Method of manfacturing an improved fine-grained WC-Co cemented carbide 有权
标题翻译： Verfahren zur Herstellung eines动词desserten feinkörnigenSinterkarbidkörperaus WC-Co
公开(公告)号：EP1054071A2
公开(公告)日：2000-11-22
申请号：EP00109343.4
申请日：2000-05-02
申请人： SANDVIK AKTIEBOLAG
发明人： Oskarsson, Rolf
IPC分类号： C22C1/05 , C22C29/08
CPC分类号： C22C1/051 , B22F2003/1032 , B22F2005/001 , B22F2998/00 , B22F2999/00 , C22C29/08 , B22F9/026 , B22F1/0003 , B22F9/04
摘要： The present invention relates to a method of making a WC-Co-based cemented carbide with a fine WC-grain size. The cemented carbide is produced from well deagglomerated or easy to deagglomerate WC powder with round morphology, a Co powder also well deagglomerated or easy to deagglomerate and with a grain size equal to or smaller than the WC grain size and grain growth inhibitors. According to the invention the metal part of the grain growth inhibitors is added as part of the binder phase i.e. is included in the Co powder and alloyed therewith.
摘要翻译：本发明涉及一种WC颗粒尺寸小的WC-Co基硬质合金的制造方法。硬质合金由具有圆形形态的良好解团聚或易分解WC粉末制成，Co粉末也很好地解聚或易于解聚，并且具有等于或小于WC晶粒尺寸和晶粒生长抑制剂的晶粒尺寸。根据本发明，晶粒生长抑制剂的金属部分作为粘合剂相的一部分加入，即包含在Co粉末中并与其合金化。

5. 发明公开

EP0763605A2 Cemented carbide articles and master alloy composition 失效
标题翻译： Zementierer Karbideartikel und Vorlegierungszusammensetzung
公开(公告)号：EP0763605A2
公开(公告)日：1997-03-19
申请号：EP96305884.7
申请日：1996-08-12
申请人： NANODYNE INCORPORATED , RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
发明人： McCandish, Larry E. , Sadangi, Rajendra K.
IPC分类号： C22C29/06 , C22C29/08
CPC分类号： C22C29/08 , B22F9/026 , B22F2003/1032 , C22C1/051 , C22C29/067
摘要： A low melting point alloy is used to sinter metal carbide particles. The alloy is a eutectic-like alloy formed from a binding metal such as iron, cobalt or nickel, in combination with vanadium and chromium. The alloy is preferably formed by forming two separate alloys and blending these together. The first alloy is formed by spray drying together a solution of a binding metal salt such as a cobalt salt with a solution of a chromium salt. The formed particles are then carburized to form a cobalt-chromium-carbon alloy. A separate vanadium alloy is formed in the same manner. The two are combined to establish the amount of chromium and vanadium desired, and this, in turn, is used to sinter metal carbide parts. This permits sintering of the metal carbide parts at temperatures less than 1250° C and in turn significantly inhibits grain grown without a significant decrease in toughness. It is particularly adapted to form carbide products wherein the carbide grain size is as low as 120 nanometers.
摘要翻译：使用低熔点合金烧结金属碳化物颗粒。该合金是由诸如铁，钴或镍的结合金属与钒和铬组合形成的共晶合金。合金优选通过形成两个单独的合金并将它们混合在一起而形成。通过将结合金属盐如钴盐的溶液与铬盐溶液一起喷雾干燥而形成第一合金。然后将形成的颗粒渗碳以形成钴 - 铬 - 碳合金。以相同的方式形成单独的钒合金。两者结合以确定所需的铬和钒的量，并且这又用于烧结金属碳化物部件。这允许金属碳化物部件在小于1250℃的温度下烧结，反过来又显着抑制晶粒生长而不显着降低韧性。它特别适用于碳化物产品，其中碳化物晶粒尺寸低至120纳米。

6. 发明公开

EP1548138A1 NANO-CRYSTAL AUSTENITIC METAL BULK MATERIAL HAVING HIGH HARDNESS, HIGH STRENGTH AND TOUGHNESS , AND METHOD FOR PRODUCTION THEREOF 审中-公开
标题翻译：纳米晶粒AUSTENITMETALL散装材料密度高，为生产高强度和韧性过程
公开(公告)号：EP1548138A1
公开(公告)日：2005-06-29
申请号：EP03798565.2
申请日：2003-09-30
申请人： Nano Technology Institute, Inc.
发明人： MIURA, Harumatsu , MIYAO, Nobuaki , OGAWA, Hidenori , ODA, Kazuo , KATSUMURA, Munehide , MIZUTANI, Masaru
IPC分类号： C22C33/02 , C22C1/05 , B22F1/00
CPC分类号： B22F3/006 , B22F2003/1032 , B22F2998/00 , B22F2998/10 , C22C9/01 , C22C14/00 , C22C21/12 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/48 , C22C2200/04 , B22F3/08 , B22F3/20 , B22F9/005 , B22F3/14 , B22F3/105 , B22F1/0018 , C22C1/1084
摘要： The invention provides a high hard, strength and tough nano-crystal metal bulk material and a preparation process thereof. The metal bulk material comprises an aggregate of metal nano-crystal grains, wherein an oxide, nitride, carbide, boride or the like of a metal or semimetal exists as a crystal grain growth inhibitor between and/or in the nano-crystal grains.
The respective fine powders of nano-metal bulk material-forming components are mechanically alloyed (MA), using a ball mill or the like, thereby preparing nano-metal powders. Then, hot forming-by-sintering treatment such as spark plasma sintering, extrusion and rolling or explosive forming is applied to the powders to obtain a high hard, strength and tough nano-crystal metal bulk material.
摘要翻译：本发明提供一种高硬度，强度和韧性的纳米晶体金属散装材料及其制备方法。金属散装材料包括套金属纳米晶粒，氧化物，氮化物，碳化物，硼化物的worin或等的金属或半金属的形式存在，之间和/或在纳米晶粒的晶粒生长抑制剂。纳米金属体积成形材料组分的respectivement细粉机械合金化（MA），使用球磨机或类似物中，从而制备纳米金属粉末。然后，热成形，通过烧结处理：如火花等离子体烧结，挤压和轧制或爆炸成形被施加到粉末以获得高硬，强度和韧性的纳米晶体金属块状材料。

7. 发明授权

EP0916743B1 Method of making metal composite materials 有权
标题翻译：制造金属复合材料的方法
公开(公告)号：EP0916743B1
公开(公告)日：2002-03-06
申请号：EP98850155.7
申请日：1998-10-08
申请人： SANDVIK AKTIEBOLAG
发明人： Waldenström, Mats , Svensson, Rolf
IPC分类号： C22C1/05 , C22C29/02
CPC分类号： C22C1/051 , B22F2003/1032 , C22C1/053

8. 发明公开

EP0916743A1 Method of making metal composite materials 有权
标题翻译： Verfahren zur Herstellung von Metallverbundwerkstoffen
公开(公告)号：EP0916743A1
公开(公告)日：1999-05-19
申请号：EP98850155.7
申请日：1998-10-08
申请人： SANDVIK AKTIEBOLAG
发明人： Waldenström, Mats , Svensson, Rolf
IPC分类号： C22C1/05 , C22C29/02
CPC分类号： C22C1/051 , B22F2003/1032 , C22C1/053
摘要： According to the method of the present invention one or more organic or inorganic metal salts or compounds of at least one of the groups IV, V and VI of the periodic system particularly, V, Cr, Mo and W optionally together with one or more organic iron group metal salts are dissolved in at least one polar solvent with at least one complex former comprising functional groups in the form of OH or NR 3 , (R=H or alkyl) and complex bound with at least one complex former. Hard constituent powder and optionally soluble carbon source are added to the solution. The solvent is evaporated and remaining powder is heat treated in inert and/or reducing atmosphere. As a result coated hard constituent powder is obtained which after addition of pressing agent and optionally with other coated hard constituent powders and/or carbon to obtain the desired composition can be compacted and sintered according to standard practice.
摘要翻译：根据本发明的方法，一种或多种周期系统中IV，V和VI族中的至少一种的有机或无机金属盐或化合物，特别是V，Cr，Mo和W任选地与一种或多种有机铁族金属盐溶解在至少一种极性溶剂中，其中至少一种含OH或NR 3（R = H或烷基）形式的官能团和与至少一个络合物结合的络合物的络合物。将硬组分粉末和任选的可溶性碳源加入到溶液中。蒸发溶剂，剩余的粉末在惰性和/或还原气氛中进行热处理。结果，得到涂布的硬质组分粉末，其可以按照标准实践压制和加入加压剂和任选与其它涂覆的硬质组分粉末和/或碳以获得所需组合物之后。

9. 发明公开

EP0834589A1 Multi-step process to incorporate grain growth inhibitors in WC-Co composite 失效
标题翻译：在WC-Co Verbundwerkstoffen的Mehrstufiges Verfahren zum Einbeziehen von Kornwachstumsinhibitoren
公开(公告)号：EP0834589A1
公开(公告)日：1998-04-08
申请号：EP97307254.9
申请日：1997-09-18
申请人： NANODYNE INCORPORATED
发明人： Seegopaul, Purnesh
IPC分类号： C22C29/08
CPC分类号： C22C1/056 , B22F2003/1032 , C22C29/08 , Y10S977/891
摘要： Grain growth inhibitors including vanadium carbide, chromium carbide, tantalum carbide, and niobium carbide are incorporated into a cobalt/tungsten carbide matrix during the formation of the cobalUtungsten carbide matrix. A precursor powder is formed by combining in solution a cobalt composition, a tungsten composition and a grain growth inhibiting metal composition, which is then spray dried. The precursor compound is then carburized in carbon monoxide and carbon dioxide to form cobalt/tungsten carbide matrix. This is then further carburized in a hydrocarbon hydrogen gas at an elevated temperature to cause the grain growth inhibiting metal present to form the carbide. The second carburizing step is conducted with a carburizing gas having a carbon activity greater than about 2 for a relatively short period of time at 900° C to 1000° C.
摘要翻译：在形成钴 - 碳化钨基体期间，将包含碳化钒，碳化铬，碳化钽和碳化铌的晶粒生长抑制剂掺入钴/碳化钨基质中。通过在溶液中混合钴组合物，钨组合物和抑制晶粒生长的金属组合物形成前体粉末，然后将其喷雾干燥。然后将前体化合物在一氧化碳和二氧化碳中渗碳以形成钴/碳化钨基体。然后在烃氢气中在升高的温度下进一步渗碳，以使存在的晶粒生长抑制金属形成碳化物。第二渗碳步骤用碳活性大于约2的渗碳气体在900℃至1000℃进行相对较短的时间。

10. 发明授权

EP1749599B1 METHODS FOR PRODUCING RAW MATERIAL ALLOY FOR RARE EARTH MAGNET, POWDER AND SINTERED MAGNET 有权转让
标题翻译：方法用于制造合金原料SELTENERDMAGENTEN，粉末磁铁磁铁烧结
公开(公告)号：EP1749599B1
公开(公告)日：2015-09-09
申请号：EP05736734.4
申请日：2005-04-27
申请人： Hitachi Metals, Ltd.
发明人： Odaka, Tomoori, Yamazaki Works, Neomax Co., Ltd. , Kaneko, Yuji, Yamazaki Works, Neomax Co., Ltd.
IPC分类号： B22D11/06 , B22D11/00 , B22D11/01 , B22F9/04 , C21D6/00 , C22C33/02 , C22C38/00 , H01F1/053 , H01F41/02
CPC分类号： B22F9/023 , B22F9/002 , B22F2003/1032 , B22F2998/10 , B22F2999/00 , C21D1/19 , C22C1/0441 , C22C1/0491 , C22C33/0278 , C22C38/005 , H01F1/0577 , H01F1/058 , H01F1/059 , H01F41/0266 , B22F9/04 , B22F3/02 , B22F3/1035 , B22F2203/11

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