公开(公告)号：US08795586B2

公开(公告)日：2014-08-05

申请号：US11720585

申请日：2005-11-14

申请人： Kinya Kawase ,  Takashi Nakai

发明人： Kinya Kawase ,  Takashi Nakai

IPC分类号： B22F1/00

CPC分类号： B22F3/02 ,  B22F2998/10 ,  B22F2999/00 ,  B22F1/0059 ,  B22F3/10 ,  B22F2203/11

摘要： A sinter of stable quality is produced by molding a powder for powder metallurgy. This process includes successively conducting the following steps: charging a powder and a solid lubricant into a mold compact formation in which the powder charged into the mold is compacted; releasing the compact from the mold; and the powder for powder metallurgy is charged again into the mold after the release step. The temperature of the mold is set at a value in the range of from the boiling point of water to the melting point of the solid lubricant. The compact can be continuously formed without causing, e.g., a failure in the feeding of the powder for powder metallurgy. The sinter obtained by sintering the compact is almost even in strength and density.

摘要翻译： 通过成型用于粉末冶金的粉末来制造质量稳定的烧结体。 该方法包括依次进行以下步骤：将粉末和固体润滑剂装入模压成型体中，在其中将装入模具中的粉末压实; 从模具中释放压块; 粉末冶金粉末在脱模步骤后再次装入模具中。 模具的温度设定在从水的沸点到固体润滑剂的熔点的范围内的值。 可以连续地形成压块，而不会导致例如用于粉末冶金的粉末的供给失败。 通过烧结所得到的烧结体的强度和密度几乎均匀。

公开(公告)号：US08153053B2

公开(公告)日：2012-04-10

申请号：US12645198

申请日：2009-12-22

申请人： Takashi Nakai ,  Kinya Kawase

发明人： Takashi Nakai ,  Kinya Kawase

IPC分类号： B22F3/12

CPC分类号： B22F3/02 ,  B22F2003/026 ,  B22F2003/145 ,  B30B15/0011

摘要： A method for forming a compact from a powder wherein a forming portion 1A in a mold body 2 is filled with a raw powder and upper and lower punches 3,4 are fitted into the forming portion 1A to form the compact. Prior to filling the forming portion 1A with the raw powder M, a solution L with a lubricant being uniformly dissolved in a solvent is applied to a peripheral portion of the forming portion 1A, and then the solution is evaporated, thus forming a crystallized layer B thereon. Thus, the reduction of a force for ejecting the compact is realized, while improving the density of the compact, realizing the stable and successive production of the compact.

摘要翻译： 一种从粉末形成压块的方法，其中模具体2中的成形部分1A填充有原料粉末，上冲头3,4和下冲头3,4装配到成形部分1A中以形成压块。 在用原料粉末M填充成形部1A之前，将具有均匀溶解在溶剂中的润滑剂的溶液L施加到成形部1A的周边部分，然后蒸发溶液，从而形成结晶化层B 上。 因此，在提高压实体的密度的同时，实现了用于压出压块的力的减小，实现了压块的稳定且连续的生产。

公开(公告)号：US20060022371A1

公开(公告)日：2006-02-02

申请号：US10531813

申请日：2003-11-18

申请人： Takashi Nakai ,  Kinya Kawase

发明人： Takashi Nakai ,  Kinya Kawase

IPC分类号： B27N3/00

CPC分类号： B22F3/02 ,  B22F2003/026 ,  B22F2003/145 ,  B30B15/0011

摘要： A method for forming a compact from a powder wherein a forming portion 1A in a mold body 2 is filled with a raw powder and upper and lower punches 3,4 are fitted into the forming portion 1A to form the compact. Prior to filling the forming portion 1A with the raw powder M, a solution L with a lubricant being uniformly dissolved in a solvent is applied to a peripheral portion of the forming portion 1A, and then the solution is evaporated, thus forming a crystallized layer B thereon. Thus, the reduction of a force for ejecting the compact is realized, while improving the density of the compact, realizing the stable and successive production of the compact

摘要翻译： 一种从粉末形成压块的方法，其中模具体2中的成形部分1A被填充有原料粉末，上下冲头3,4装配到成形部分1A中以形成压块。 在将原料粉末M填充到成形部分1A之前，将具有均匀溶解在溶剂中的润滑剂的溶液L施加到形成部分1A的周边部分，然后蒸发溶液，从而形成结晶 B层。 因此，能够实现小型化的压出力的降低，同时提高压块的密度，实现压块的稳定连续的生产

公开(公告)号：US20100135841A1

公开(公告)日：2010-06-03

申请号：US12645198

申请日：2009-12-22

申请人： Takashi Nakai ,  Kinya Kawase

发明人： Takashi Nakai ,  Kinya Kawase

IPC分类号： B22F3/12 ,  B22F3/02 ,  B22F1/00 ,  C22C9/00 ,  C22C38/00

CPC分类号： B22F3/02 ,  B22F2003/026 ,  B22F2003/145 ,  B30B15/0011

摘要： A method for forming a compact from a powder wherein a forming portion 1A in a mold body 2 is filled with a raw powder and upper and lower punches 3,4 are fitted into the forming portion 1A to form the compact. Prior to filling the forming portion 1A with the raw powder M, a solution L with a lubricant being uniformly dissolved in a solvent is applied to a peripheral portion of the forming portion 1A, and then the solution is evaporated, thus forming a crystallized layer B thereon. Thus, the reduction of a force for ejecting the compact is realized, while improving the density of the compact, realizing the stable and successive production of the compact.

摘要翻译： 一种从粉末形成压块的方法，其中模具体2中的成形部分1A填充有原料粉末，上冲头3,4和下冲头3,4装配到成形部分1A中以形成压块。 在用原料粉末M填充成形部1A之前，将具有均匀溶解在溶剂中的润滑剂的溶液L施加到成形部1A的周边部分，然后蒸发溶液，从而形成结晶化层B 上。 因此，在提高压实体的密度的同时，实现了用于压出压块的力的减小，实现了压块的稳定且连续的生产。

公开(公告)号：US20060147570A1

公开(公告)日：2006-07-06

申请号：US10547047

申请日：2004-03-26

申请人： Takashi Nakai ,  Kinya Kawase

发明人： Takashi Nakai ,  Kinya Kawase

IPC分类号： B30B11/10

CPC分类号： B22F3/03 ,  B22F2003/026 ,  B30B15/0011

摘要： A surface treatment layer 11 is formed on a surface 10 of a through-hole 1 so that the surface 10 has an angle X of contact with solution L which is smaller than an angle Y of contact of a die 2 per se with the solution L. When the solution L is applied, the wetting action of the solution L relative to the through-hole 1 is improved so that the solution L can be extended over the surface treatment layer 11, eventually over the entire surface of the through-hole 1. Consequently, the entire surface thereof can be formed with a crystallized layer by performing water evaporation. As a result, molding at higher temperature can be realized, and high-density compacts can be stably obtained. Further, the solution L in which the lubricant is dissolved in a solvent into a homogeneous phase, is applied to a molding portion 1A, and then evaporated to thereby form crystals thereon, thus forming the crystallized layer.

摘要翻译： 表面处理层11形成在通孔1的表面10上，使得表面10具有与溶液L接触的角度X，其小于模具2本身与溶液L的接触角度Y 当施加溶液L时，溶液L相对于通孔1的润湿作用被改善，使得溶液L可以最终在通孔1的整个表面上延伸到表面处理层11上 。 因此，其整个表面可以通过水蒸发形成结晶层。 结果，可以实现在较高温度下的成型，并且可以稳定地获得高密度压块。 此外，将其中将润滑剂溶解在溶剂中的溶液L施加到模制部分1A，然后蒸发，从而在其上形成晶体，从而形成结晶层。

公开(公告)号：US20080159900A1

公开(公告)日：2008-07-03

申请号：US11720585

申请日：2005-11-14

申请人： Kinya Kawase ,  Takashi Nakai

发明人： Kinya Kawase ,  Takashi Nakai

IPC分类号： B22F1/00

CPC分类号： B22F3/02 ,  B22F2998/10 ,  B22F2999/00 ,  B22F1/0059 ,  B22F3/10 ,  B22F2203/11

摘要： A sinter of stable quality is produced by molding a powder for powder metallurgy. This process includes successively conducting the following steps: charging a powder and a solid lubricant into a mold compact formation in which the powder charged into the mold is compacted; releasing the compact from the mold (1); and the powder for powder metallurgy is charged again into the mold after the release step. The compact is sintered to produce a sinter. The temperature of the mold is set at a value in the range of from the boiling point of water to the melting point of the solid lubricant. The compact can be continuously formed without causing, e.g., a failure in the feeding of the powder for powder metallurgy. The sinter obtained by sintering the compact is almost even in strength and density. Thus, a stable sinter almost even in strength and density can be produced.

摘要翻译： 通过成型用于粉末冶金的粉末来制造质量稳定的烧结体。 该方法包括依次进行以下步骤：将粉末和固体润滑剂装入模压成型体中，在其中将装入模具中的粉末压实; 从模具（1）释放压块; 粉末冶金粉末在脱模步骤后再次装入模具中。 将该压坯烧结以产生烧结体。 模具的温度设定在从水的沸点到固体润滑剂的熔点的范围内的值。 可以连续地形成压块，而不会导致例如用于粉末冶金的粉末的供给失败。 通过烧结所得到的烧结体的强度和密度几乎均匀。 因此，可以产生几乎均匀的强度和密度的稳定烧结物。

公开(公告)号：US07585165B2

公开(公告)日：2009-09-08

申请号：US10547047

申请日：2004-03-26

申请人： Takashi Nakai ,  Kinya Kawase

发明人： Takashi Nakai ,  Kinya Kawase

IPC分类号： B29C43/02

CPC分类号： B22F3/03 ,  B22F2003/026 ,  B30B15/0011

摘要： A surface treatment layer 11 is formed on a surface 10 of a through-hole 1 so that the surface 10 has an angle X of contact with solution L which is smaller than an angle Y of contact of a die 2 per se with the solution L. When the solution L is applied, the wetting action of the solution L relative to the through-hole 1 is improved so that the solution L can be extended over the surface treatment layer 11, eventually over the entire surface of the through-hole 1. Consequently, the entire surface thereof can be formed with a crystallized layer by performing water evaporation. As a result, molding at higher temperature can be realized, and high-density compacts can be stably obtained. Further, the solution L in which the lubricant is dissolved in a solvent into a homogeneous phase, is applied to a molding portion 1A, and then evaporated to thereby form crystals thereon, thus forming the crystallized layer.

摘要翻译： 表面处理层11形成在通孔1的表面10上，使得表面10具有与溶液L接触的角度X，其小于模具2本身与溶液L的接触角度Y 当施加溶液L时，溶液L相对于通孔1的润湿作用被改善，使得溶液L可以最终在通孔1的整个表面上延伸到表面处理层11上 因此，其整个表面可以通过进行水蒸发而形成结晶层。 结果，可以实现在较高温度下的成型，并且可以稳定地获得高密度压块。 此外，将其中将润滑剂溶解在溶剂中的溶液L施加到模制部1A，然后蒸发，从而在其上形成晶体，从而形成结晶层。

公开(公告)号：US07582255B2

公开(公告)日：2009-09-01

申请号：US10596004

申请日：2004-11-24

申请人： Takashi Nakai ,  Kinya Kawase

发明人： Takashi Nakai ,  Kinya Kawase

IPC分类号： B22F3/02 ,  B22F3/12

CPC分类号： B22F1/0059 ,  B22F2003/023 ,  B22F2003/145

摘要： A hydroxy fatty acid salt having an average particle diameter of from 5 μm to 100 μm with a composition of from 0.3 wt % to 2 wt %, and more preferably, from 0.5 wt % to 2 wt % is added to a raw material powder in powder metallurgy, and worm molding is performed. In addition, a hydroxy fatty acid salt having an average particle diameter of 50 μm or less is attached on a mold in advance, and after that, the warm molding is performed. As a hydroxy fatty acid salt, 12-hydroxy lithium stearate is suitably used.

摘要翻译： 将平均粒径为5〜100μm的组成为0.3〜2重量％，更优选为0.5〜2重量％的羟基脂肪酸盐加入到原料粉末中 进行粉末冶金和蜗杆成型。 此外，预先将平均粒径为50μm以下的羟基脂肪酸盐附着在模具上，之后进行加热成型。 作为羟基脂肪酸盐，适当地使用12-羟基硬脂酸锂。

公开(公告)号：US20080056929A1

公开(公告)日：2008-03-06

申请号：US10596004

申请日：2004-11-24

申请人： Takashi Nakai ,  Kinya Kawase

发明人： Takashi Nakai ,  Kinya Kawase

IPC分类号： B22F3/02

CPC分类号： B22F1/0059 ,  B22F2003/023 ,  B22F2003/145

摘要： A hydroxy fatty acid salt having an average particle diameter of from 5 μm to 100 μm with a composition of from 0.3 wt % to 2 wt %, and more preferably, from 0.5 wt % to 2 wt % is added to a raw material powder in powder metallurgy, and worm molding is performed. In addition, a hydroxy fatty acid salt having an average particle diameter of 50 μm or less is attached on a mold in advance, and after that, the warm molding is performed. As a hydroxy fatty acid salt, 12-hydroxy lithium stearate is suitably used.

摘要翻译： 将平均粒径为5〜100μm的组成为0.3〜2重量％，更优选为0.5〜2重量％的羟基脂肪酸盐加入到原料粉末中 进行粉末冶金和蜗杆成型。 此外，预先将平均粒径为50μm以下的羟基脂肪酸盐附着在模具上，之后进行加热成型。 作为羟基脂肪酸盐，适当地使用12-羟基硬脂酸锂。

公开(公告)号：US20080038142A1

公开(公告)日：2008-02-14

申请号：US10598413

申请日：2005-02-24

申请人： Takashi Nakai ,  Kinya Kawase

发明人： Takashi Nakai ,  Kinya Kawase

IPC分类号： B22F3/035 ,  B22F3/02 ,  B30B11/00

CPC分类号： B30B15/0011

摘要： A powder molding product may be formed by a forming portion in a mold body filled with a raw powder. Upper and lower punches are fitted into the forming portion to form the powder molding product. Prior to filling with the raw powder, aqueous solution in which water soluble lubricant having at least 3 g of solubility for 100 g of water is dissolved in water to uniform phase is applied to a mold portion. The aqueous solution is evaporated, thus forming a crystallized layer on the molding portion. The crystallized layer is formed on the peripheral surface of the molding portion for lubrication enabling the reducing of a pressure required for ejecting the powder molding product from the molding portion as well as the improving of the density of the powder molding product.

摘要翻译： 可以通过在填充有原料粉末的模具体中的成形部分形成粉末成型产品。 上下冲头装配到成形部分中以形成粉末成型产品。 在填充原料粉末之前，将其中将具有至少3g对于100g水的溶解度的水溶性润滑剂溶解在水中以将其均匀相溶解的水溶液施加到模具部分。 蒸发水溶液，从而在成型部分上形成结晶层。 结晶层形成在用于润滑的成型部分的圆周表面上，从而能够降低从模制部分喷射粉末成型产品所需的压力以及提高粉末成型产品的密度。