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    Lubricants for die lubrication and manufacturing method for high density iron-based powder compacts
    3.
    发明授权
    Lubricants for die lubrication and manufacturing method for high density iron-based powder compacts 失效
    用于模具润滑的润滑剂和用于高密度铁基粉末压块的制造方法

    公开(公告)号：US06861028B2

    公开(公告)日：2005-03-01

    申请号：US09817171

    申请日：2001-03-27

    申请人： Yukiko Ozaki ,  Satoshi Uenosono ,  Shigeru Unami

    发明人： Yukiko Ozaki ,  Satoshi Uenosono ,  Shigeru Unami

    IPC分类号： C10M129/40 ,  B22F1/00 ,  B22F3/02 ,  B22F3/035 ,  B30B15/00 ,  C10M103/02 ,  C10M103/06 ,  C10M129/44 ,  C10M133/06 ,  C10M133/16 ,  C10M133/42 ,  C10M143/02 ,  C10M143/04 ,  C10M145/14 ,  C10M147/02 ,  C10M149/18 ,  C10N10/02 ,  C10N10/04 ,  C10N10/12 ,  C10N20/06 ,  C10N40/36 ,  C22C33/02 ,  B22F3/12

    CPC分类号： B22F1/0077 ,  B22F1/0059 ,  B22F2998/00 ,  B22F2999/00 ,  B30B15/0011 ,  B22F2003/023 ,  B22F2003/026 ,  B22F2202/06

    摘要： A manufacturing method for high-density iron-based powder compacts is disclosed. The temperature of the die is adjusted at ordinary temperature or at a predetermined temperature by preheating. A lubricant for die lubrication prepared by mixing at least two different lubricants having melting points higher than a predetermined temperature of the compaction pressure is sprayed at the upper part of the die and is introduced into the die and adhered by electrification to the surface of the die. The resulting die is filled with an iron-based mixed powder including a lubricant and molding is performed at ordinary temperature or at a temperature raised by heating. The at least two different lubricants having melting points higher than the predetermined temperature of the compaction pressure are preferably at least two materials selected from at least one of the following groups: metallic soaps, amide-based waxes, polyamides, polyethylenes, polypropylenes, polymers comprised of acrylic acid esters, polymers having methacrylic acid ester, plastics including fluorine and lubricants having layered crystal structures.

    摘要翻译： 公开了一种高密度铁基粉末压块的制造方法。 通过预热将模具的温度调节到常温或预定温度。 通过将熔点高于压缩压力的预定温度的至少两种不同的润滑剂混合制备的用于模具润滑的润滑剂在模具的上部喷射并被引入模具中并通过带电粘附到模具的表面 。 所得模具填充有包含润滑剂的铁基混合粉末，并且在常温或通过加热升高的温度下进行成型。 具有高于压实压力的预定温度的熔点的至少两种不同的润滑剂优选为至少两种选自以下组中的至少一种：金属皂，酰胺类蜡，聚酰胺，聚乙烯，聚丙烯，聚合物 的丙烯酸酯，具有甲基丙烯酸酯的聚合物，包含氟的塑料和具有层状晶体结构的润滑剂。

    Mixed powder for powder metallurgy
    4.
    发明授权
    Mixed powder for powder metallurgy 有权
    粉末冶金混合粉末

    公开(公告)号：US07384446B2

    公开(公告)日：2008-06-10

    申请号：US10560080

    申请日：2005-04-21

    申请人： Shigeru Unami ,  Satoshi Uenosono ,  Yukiko Ozaki

    发明人： Shigeru Unami ,  Satoshi Uenosono ,  Yukiko Ozaki

    IPC分类号： B22F1/02

    CPC分类号： C22C33/0207

    摘要： Mo of 0.05 to 1.0% by mass is adhered to the surfaces of an iron-based powder containing Mn of 0.5% by mass or less and Mo of 0.2 to 1.5% by mass as prealloyed elements by diffusion bonding, whereby an alloy steel powder is formed. Furthermore, a Ni powder of 0.2 to 5% by mass and/or a Cu powder of 0.2 to 3% by mass are added to the alloy steel powder, whereby a mixed powder for powder metallurgy is formed. The mixed powder for powder metallurgy according to the present invention enables production of sintered bodies having high density as well as superior tensile strength and rotating bending fatigue strength.

    摘要翻译： 通过扩散接合将0.05〜1.0质量％的Mo粘附到作为预合金元素的Mn为0.5质量％以下且Mo为0.2〜1.5质量％的铁基粉末的表面，由此合金钢粉末为 形成。 此外，在合金钢粉末中加入0.2〜5质量％的Ni粉末和/或0.2〜3质量％的Cu粉末，形成粉末冶金用混合粉末。 根据本发明的用于粉末冶金的混合粉末能够生产具有高密度以及优异的拉伸强度和旋转弯曲疲劳强度的烧结体。

    Mixed powder for powder metallurgy
    5.
    发明申请
    Mixed powder for powder metallurgy 有权
    粉末冶金混合粉末

    公开(公告)号：US20070089562A1

    公开(公告)日：2007-04-26

    申请号：US10560080

    申请日：2005-04-21

    申请人： Shigeru Unami ,  Satoshi Uenosono ,  Yukiko Ozaki

    发明人： Shigeru Unami ,  Satoshi Uenosono ,  Yukiko Ozaki

    IPC分类号： B22F1/02

    CPC分类号： C22C33/0207

    摘要： Mo of 0.05 to 1.0% by mass is adhered to the surfaces of an iron-based powder containing Mn of 0.5% by mass or less and Mo of 0.2 to 1.5% by mass as prealloyed elements by diffusion bonding, whereby an alloy steel powder is formed. Furthermore, a Ni powder of 0.2 to 5% by mass and/or a Cu powder of 0.2 to 3% by mass are added to the alloy steel powder, whereby a mixed powder for powder metallurgy is formed. The mixed powder for powder metallurgy according to the present invention enables production of sintered bodies having high density as well as superior tensile strength and rotating bending fatigue strength.

    摘要翻译： 通过扩散接合将0.05〜1.0质量％的Mo粘附到作为预合金元素的Mn为0.5质量％以下且Mo为0.2〜1.5质量％的铁基粉末的表面，由此合金钢粉末为 形成。 此外，在合金钢粉末中加入0.2〜5质量％的Ni粉末和/或0.2〜3质量％的Cu粉末，形成粉末冶金用混合粉末。 根据本发明的用于粉末冶金的混合粉末能够生产具有高密度以及优异的拉伸强度和旋转弯曲疲劳强度的烧结体。

    Die lubricant and iron-based powder mixture for warm compaction with die lubrication, and processes for producing high-density iron-based green and sintered compacts
    6.
    发明授权
    Die lubricant and iron-based powder mixture for warm compaction with die lubrication, and processes for producing high-density iron-based green and sintered compacts 有权
    用于模具润滑的温和压实的模具润滑剂和铁基粉末混合物，以及用于生产高密度铁基绿和烧结体的方法

    公开(公告)号：US06355208B1

    公开(公告)日：2002-03-12

    申请号：US09631033

    申请日：2000-08-02

    申请人： Shigeru Unami ,  Yukiko Ozaki ,  Satoshi Uenosono

    发明人： Shigeru Unami ,  Yukiko Ozaki ,  Satoshi Uenosono

    IPC分类号： B22F312

    CPC分类号： B22F3/02 ,  B22F2998/00 ,  B22F2999/00 ,  B22F2003/023 ,  B22F2003/145 ,  B22F2003/026 ,  B22F2202/06

    摘要： A process for producing a high-density iron-based green compact is provided that can form a green compact with a high density. Also provided is a process for producing a sintered compact from the green compact. A specified combination lubricant is applied to the surface of a die for compacting by electrical charging, wherein the combination lubricant includes a first lubricant having a melting point that is higher than a preset compacting temperature, and a second lubricant having a melting point that is lower than a compacting temperature. A heated iron-based powder mixture is filled into the die, followed by compacting, whereby a green compact is formed. The green compact can be sintered to provide a sintered compact. The powder mixture comprises an iron-based powder, a lubricant and a graphite powder, wherein the lubricant includes a first lubricant having a melting point that is lower than the compacting temperature and in an amount from 10 to 75% by mass, and a second lubricant having a melting point that is higher than the compacting temperature, and the content of the graphite powder is less than 0.5% by mass based on the total amount of the iron-based powder mixture.

    摘要翻译： 提供了一种生产高密度铁基生坯的方法，其可以形成高密度的生坯。 还提供了一种用于从压坯生产烧结体的方法。 通过充电将特定的组合润滑剂施加到用于压实的模具的表面上，其中所述组合润滑剂包括具有高于预设压实温度的熔点的第一润滑剂和具有较低熔点的第二润滑剂 比压实温度高。 将加热的铁基粉末混合物填充到模具中，随后压实，由此形成生坯。 可以将生坯压坯烧结成烧结体。 粉末混合物包含铁基粉末，润滑剂和石墨粉末，其中润滑剂包括熔点低于压实温度的第一润滑剂，其量为10〜75质量％，第二润滑剂为 具有高于压实温度的熔点的润滑剂，并且相对于铁基粉末混合物的总量，石墨粉末的含量小于0.5质量％。

    Alloy steel powders, sintered bodies and method
    7.
    发明授权
    Alloy steel powders, sintered bodies and method 失效
    合金钢粉末，烧结体及方法

    公开(公告)号：US5605559A

    公开(公告)日：1997-02-25

    申请号：US392120

    申请日：1995-02-22

    申请人： Shigeru Unami ,  Satoshi Uenosono

    发明人： Shigeru Unami ,  Satoshi Uenosono

    IPC分类号： C22C33/02 ,  C22C38/22 ,  C22C38/24 ,  C22C38/46

    CPC分类号： C22C33/0264 ,  C22C33/02 ,  C22C38/22 ,  C22C38/24 ,  B22F2009/0824 ,  B22F2998/10 ,  B22F2999/00

    摘要： Alloy steel powders capable of obtaining high strength in a sintered state and having excellent compacting compressibility and methods of manufacturing a sintered body. The alloy steel powder comprises, by wt %, about 0.5-2% of Cr, not greater than about 0.08% of Mn, about 0.1-0.6% of Mo, about 0.05-0.5% of V, not greater than about 0.015 of S, not greater than about 0.2% of O, and the balance being Fe and incidental impurities. The alloy steel powder is compacted and sintered at a temperature of about 1100.degree.-1300.degree. C. and then cooled at a cooling rate no higher than about 1.degree. C./s in a temperature range of from about 800.degree. C. to 400.degree. C. The alloy steel powder can contain Nb and/or Ti and one or more of Co, W and B. Additionally, Ni powder and/or Cu powder may be adhered and dispersed onto the surface of the alloy steel powder.

    摘要翻译： 能够在烧结状态下获得高强度并具有优异的压实压缩性的合金钢粉末和制造烧结体的方法。 合金钢粉末以重量％计含有约0.5-2％的Cr，不大于约0.08％的Mn，约0.1-0.6％的Mo，约0.05-0.5％的V，不大于约0.015的S ，不大于约0.2％的O，余量为Fe和杂质。 合金钢粉末在约1100〜-1300℃的温度下压实烧结，然后在约800℃至400℃的温度范围内以不高于约1℃/ s的冷却速率冷却 ℃。合金钢粉末可以含有Nb和/或Ti以及一种或多种Co，W和B.另外，Ni粉末和/或Cu粉末可以粘附并分散在合金钢粉末的表面上。

    Metallic powder molding material and its re-compression molded body and sintered body obtained from the re-compression molded body and production methods thereof
    9.
    发明授权
    Metallic powder molding material and its re-compression molded body and sintered body obtained from the re-compression molded body and production methods thereof 有权
    金属粉末成型材料及其再压缩成型体和由再压缩成型体得到的烧结体及其制造方法

    公开(公告)号：US06503443B1

    公开(公告)日：2003-01-07

    申请号：US09647862

    申请日：2000-10-06

    申请人： Takashi Yoshimura ,  Hiroyuki Amma ,  Masashi Fujinaga ,  Mitsumasa Iijima ,  Yasuo Hatai ,  Takayuki Matsumoto ,  Satoshi Uenosono ,  Shigeru Unami

    发明人： Takashi Yoshimura ,  Hiroyuki Amma ,  Masashi Fujinaga ,  Mitsumasa Iijima ,  Yasuo Hatai ,  Takayuki Matsumoto ,  Satoshi Uenosono ,  Shigeru Unami

    IPC分类号： B22F316

    CPC分类号： C22C33/02 ,  B22F2998/00 ,  B22F2998/10 ,  B22F3/16 ,  C22C33/0228 ,  B22F3/02 ,  B22F3/10 ,  B22F3/20

    摘要： In a preliminary molding step 1, a metallic powder mixture 7 obtained by blending an iron-based metal powder 7a with graphite 7b such that the graphite is present in an amount of preferably not less than 0.1% by weight, more preferably not less than 0.3% by weight, is compacted into a preform 8 having a density of not less than 7.3 g/cm3. In a provisional sintering step 2, the preform 8 is provisionally sintered at a predetermined temperature to form a metallic powder-molded body 9 having a structure in which the graphite remains along a grain boundary of the metal powder. In a re-compaction step 3, the metallic powder-molded body 9 is re-compacted into a re-compacted body 10. In a re-sintering step 4, the re-compacted body 10 is re-sintered to obtain a sintered body 11. In a heat treatment step 5, the sintered body 11 is heat-treated to obtain a heat-treated sintered body 11. Accordingly, in accordance with the present invention, there are provided a re-compacted body produced from a metallic powder-molded body having an excellent deformability which is suitably applied to the production of machine parts exhibiting high mechanical properties due to the use of sintered metal, and a sintered body produced from the re-compacted body as well as a process for the production thereof.

    摘要翻译： 在预成型步骤1中，通过将铁基金属粉末7a与石墨7b共混而得到的金属粉末混合物7，使得石墨的存在量优选为0.1重量％以上，更优选为0.3以上 重量％被压实成密度不小于7.3g / cm 3的预成型体8。 在预烧结步骤2中，将预成型体8在规定温度下进行预烧结，形成金属粉末成形体9，该金属粉末成型体9具有沿着金属粉末的晶界留下的石墨的结构。 在再压制步骤3中，将金属粉末成型体9再压制成再压制体10.在再烧结步骤4中，重新烧结再压制体10以获得烧结体 在热处理工序5中，对烧结体11进行热处理，得到热处理烧结体11.因此，根据本发明，提供了一种由金属粉末 - 具有优异的变形性的成型体，其适用于由于使用烧结金属而显示出高机械性能的机械部件的制造，以及由再压制体制造的烧结体及其制造方法。