公开(公告)号：EP2108472A4

公开(公告)日：2011-05-18

申请号：EP07708007

申请日：2007-01-30

Applicant: JFE STEEL CORP

Inventor： MAETANI TOSHIO ,  UENOSONO SATOSHI ,  UETA MASATERU

IPC: B22F1/00 ,  B22F3/00 ,  B22F9/08 ,  C22C38/00 ,  C22C38/04 ,  H01F1/24

CPC classification number: H01F41/0246 ,  B22F2998/00 ,  C22C33/0271 ,  C22C38/02 ,  C22C38/04 ,  H01F1/26 ,  Y10T428/2991 ,  B22F9/082

公开(公告)号：JP2015038239A

公开(公告)日：2015-02-26

申请号：JP2014109474

申请日：2014-05-27

Applicant: Jfeスチール株式会社 ,  Jfe Steel Corp

Inventor： NUSHISHIRO KOICHI ,  MAETANI TOSHIO ,  ONO TOMOSHIGE ,  OZAKI YUKIKO

IPC: B22F1/00

CPC classification number: B22F1/007 ,  B22F1/0059 ,  B22F3/004 ,  B22F3/16 ,  B22F9/04 ,  C22C33/02

Abstract: 【課題】焼結炉の炉内環境に悪影響を及ぼすことなく成形体の焼結ができるだけでなく、優れた旋盤切削性および優れたドリル切削性を兼備した焼結体を得ることが可能な、粉末冶金用混合粉を提案する。【解決手段】切削性改善用粉末を、結晶質層状珪酸アルカリとし、該切削性改善用粉末の配合量を、鉄基粉末、合金用粉末および切削性改善用粉末の合計量に対する質量%で、0.01〜1.0%の範囲とする。【選択図】なし

Abstract translation: 要解决的问题：提供粉末冶金用混合粉末，不仅可以烧结成型体，而且不会对烧结炉的炉体环境产生不良影响，而且具有优良的车床加工性和优异的钻孔加工性。解决方案：用于提高切削性的粉末 制成结晶层状碱性二氧化硅，并且用于提高机械加工性的粉末的配合量相对于铁基粉末，合金粉末和提高机械加工性的粉末的总量控制在0.01〜1.0质量％的范围内。

公开(公告)号：JP2014237878A

公开(公告)日：2014-12-18

申请号：JP2013120995

申请日：2013-06-07

Applicant: Jfeスチール株式会社 ,  Jfe Steel Corp

Inventor： MAETANI TOSHIO ,  UNAMI SHIGERU

IPC: B22F1/02 ,  B22F1/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/12 ,  C22C38/16

CPC classification number: B22F1/0003 ,  B22F1/0085 ,  B22F1/025 ,  B22F3/16 ,  B22F9/04 ,  B22F2301/35 ,  B22F2302/45 ,  C21D6/00 ,  C22C33/0264 ,  C22C38/00 ,  C22C38/002 ,  C22C38/12 ,  C22C38/16

Abstract: 【課題】それを用いた焼結体の強度と靭性の両立が高いレベルで可能な、鉄基粉末を主成分とする粉末冶金用合金鋼粉を提案する。【解決手段】鉄基粉末が還元鉄粉を含み、かつMoを上記合金鋼粉全体に対する比率で0.2〜1.5質量%含み、さらに、上記合金鋼粉全体に対する比率で、Cu粉を0.5〜4.0質量%、黒鉛粉を0.1〜1.0質量%それぞれ含有させる。【選択図】なし

Abstract translation: 要解决的问题：提供一种主要含有铁基粉末的粉末冶金用合金钢粉末，其能够以高水平使其能够使用其的烧结体的强度和韧性两者。解决方案：铁基粉末含有还原的铁粉和 Mo为0.2〜1.5质量％，相对于整个合金钢粉末为比例，含有0.5〜4.0质量％的Cu粉末和0.1〜1.0质量％的石墨粉末。

公开(公告)号：JP2011168869A

公开(公告)日：2011-09-01

申请号：JP2010036352

申请日：2010-02-22

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： OZAKI YUKIKO ,  ONO TOMOSHIGE ,  KONO TAKASHI ,  MAETANI TOSHIO

IPC: B22F1/00

Abstract: PROBLEM TO BE SOLVED: To provide a mixed powder for powder metallurgy, from which a sintered compact having excellent machinability and drill cuttability in combination can be obtained.
SOLUTION: Metal powder is mixed with powder for alloying, powder for machinability improvement and lubricant powder. The powder for machinability improvement is composed of soft metal compound powder and hard metal compound powder. Regarding the blending quantity, it is preferable that the content of the hard metal compound powder is 0.01 to 0.5 mass% and the content of the soft metal compound metal powder is 0.01 to 1.0 mass%, based on the total content of the metal powder, the powder for alloying and the powder for machinability improvement. It is preferable that as the hard metal compound powder, metal carbide powder is used, and further, even among the metal carbides, one or more selected from TiC, ZrC, WC, SiC and NbC are used. Besides, as the soft metal compound powder, the powder of talc, enstatite, kaolin, mica, fluorite, water-granulated slag or the like can be exemplified. Regarding the sintered compact produced from such mixed powder, the particles of the soft metal compound with a hardness lower than the average hardness of the base phase and the particles of the hard metal compound with a high hardness are dispersed into the base phase to provide the sintered compact which has excellent machinability and cuttability in combination, and is excellent in cuttability.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供粉末冶金用混合粉末，可以获得组合具有优良的可切削性和钻孔切削性的烧结体。

解决方案：金属粉末与粉末混合，用于合金化，用于机械加工的粉末和润滑剂粉末。 用于机械加工性改善的粉末由软金属化合物粉末和硬质金属化合物粉末组成。 关于共混量，优选硬金属化合物粉末的含量为0.01〜0.5质量％，软金属化合物金属粉末的含量相对于金属粉末的总量为0.01〜1.0质量％ 用于合金化的粉末和用于机加工性改善的粉末。 优选使用硬质合金粉末，使用金属碳化物粉末，进一步使用金属碳化物中的TiC，ZrC，WC，SiC，NbC中的一种以上。 此外，作为软质金属化合物粉末，可以列举滑石，顽辉石，高岭土，云母，萤石，水粒状渣等的粉末。 关于由这种混合粉末制造的烧结体，将硬度低于基体相的硬度的硬金属化合物的颗粒和硬度高的硬质金属化合物的颗粒分散在基体相中， 烧结体，其切削性和切削性优异，切削性优异。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009235489A

公开(公告)日：2009-10-15

申请号：JP2008083052

申请日：2008-03-27

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： NAKAMURA NAOMICHI ,  SAKAGUCHI YASUHIKO ,  MAETANI TOSHIO

IPC: B22F1/00 ,  B22F9/08 ,  C22C38/00

Abstract: PROBLEM TO BE SOLVED: To provide a raw powder suitable for manufacturing a lightweight sintered member which meets a request to reduce the weight of sintered parts at low cost, based on a viewpoint which has not been proposed in a conventional art.
SOLUTION: The hollow iron powder has a component composition comprising, 0.01 mass% or less C, and the balance iron with unavoidable impurities. The particle has a hole in the inside, an average particle diameter of 50 μm to 500 μm, and an average wall thickness of 10 μm to 1/5 of the average particle diameter.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：基于现有技术中未提出的观点，提供适于制造轻质烧结构件的原料粉末，其满足低成本地降低烧结部件重量的要求。

解决方案：中空铁粉具有包含0.01质量％以下的C成分组成，余量为不可避免杂质的铁。 颗粒在内部具有孔，平均粒径为50μm〜500μm，平均壁厚为平均粒径的10μm〜1/5。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2015014048A

公开(公告)日：2015-01-22

申请号：JP2014118016

申请日：2014-06-06

Applicant: Jfeスチール株式会社 ,  Jfe Steel Corp

Inventor： MAETANI TOSHIO ,  UNAMI SHIGERU

IPC: B22F1/00 ,  C22C33/02 ,  C22C38/00

Abstract: 【課題】それを用いた焼結体の強度と靭性の両立が高いレベルで可能な、鉄基粉末を主成分とする粉末冶金用合金鋼粉を提案する。【解決手段】鉄基粉末が還元鉄粉を含み、かつ該鉄基粉末の最大粒径が100μm以下であって、さらにMoを粉末冶金用合金鋼粉の全体に対する比率で0.2〜1.5質量%含有させ、かつ、黒鉛粉を粉末冶金用合金鋼粉の全体に対する比率で0.1〜1.0質量%含有させる。【選択図】なし

Abstract translation: 要解决的问题：提供一种粉末冶金用合金钢粉末，其能够实现使用它的烧结体的强度和韧性，并且基于铁基粉末。解决方案：在用于粉末冶金的合金钢粉末中， 的粉末含有还原铁粉末，其最大粒径为100μm以下，并且与粉末冶金用合金钢粉末和0.1〜1.0重量份的石墨粉末相比，还含有0.2〜1.5质量％的Mo 质量％以粉末冶金合金钢粉末的比例计。

公开(公告)号：JP2012211383A

公开(公告)日：2012-11-01

申请号：JP2011231474

申请日：2011-10-21

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： SAKAGUCHI YASUHIKO ,  MAETANI TOSHIO

IPC: B22F1/00 ,  C21D3/02 ,  C21D3/04 ,  C21D3/08 ,  C21D3/10 ,  C22C38/00 ,  F27B9/20

CPC classification number: B22F1/0088 ,  B22F1/0003 ,  B22F1/0081 ,  B22F1/0085 ,  B22F2201/013 ,  B22F2201/10 ,  B22F2201/32 ,  B22F2301/35 ,  C21D1/74 ,  C21D3/02 ,  C21D3/04 ,  C21D3/08 ,  F27B9/028 ,  F27B9/045 ,  F27B9/047 ,  F27B9/243 ,  F27D7/02

Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for finish heat treatment of iron powder, which can produce product iron powder with a desired target concentration range in a stable manner at a high productivity, regardless of impurity content of crude iron powder that is raw material of the iron powder.SOLUTION: The crude iron powder is loaded on a continuous moving bed 9 and charged into a finish heat treatment apparatus. The crude iron powder is subjected to a preparatory treatment at first in the preparatory treatment zone 31, to be heated at the temperature range of 450-1,100°C in hydrogen gas and/or inert gas atmosphere, then, followed by at least two kinds of treatments among decarburizing, deoxidizing and denitrifying, in the decarburization zone, deoxidization zone and denitrification zone respectively. In the preparatory treatment zone, besides the atmospheric gas used for at least two kinds of the treatments, hydrogen gas and/or inert gas is introduced from the upstream side 50 of the preparatory treatment zone 31 as the atmospheric gas, and discharged from the downstream side 6 so that the gas flows in the same direction as the moving direction of continuous moving bed 9.

Abstract translation: 要解决的问题：提供一种铁粉末的热处理方法和装置，其可以以高生产率以稳定的方式生产具有期望的目标浓度范围的产品铁粉，而不管原料的杂质含量 铁粉是铁粉的原料。 解决方案：将粗铁粉末装载在连续移动的床9上并装入精加工热处理装置中。 首先在预备处理区域31中对粗铁粉末进行预处理，在氢气和/或惰性气体气氛中在450-1100℃的温度范围内加热，然后至少两种 脱碳，脱氧，脱氮区脱碳，脱氧脱氮处理。 在预备处理区域中，除了用于至少两种处理的气氛气体之外，还将氢气和/或惰性气体作为大气气体从预备处理区域31的上游侧50引入，并从下游排出 侧面6，使得气体沿与连续移动床9的移动方向相同的方向流动。版权所有：（C）2013，JPO＆INPIT

公开(公告)号：JP2012181182A

公开(公告)日：2012-09-20

申请号：JP2011232636

申请日：2011-10-24

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： MAETANI TOSHIO ,  KATO HIROHARU

IPC: G01N27/72 ,  B22F1/00 ,  B22F3/02 ,  B22F3/035 ,  B30B11/00 ,  G01N9/00

CPC classification number: B22F3/003 ,  B22F3/02 ,  B22F3/03 ,  B30B15/302 ,  B30B15/304 ,  G01N9/00 ,  G01N9/24 ,  G01N15/0656 ,  G01N27/72

Abstract: PROBLEM TO BE SOLVED: To provide an apparent density measuring method capable of highly accurately measuring an apparent density of a metal powder according to an online and no-contact method without intercepting a process of manufacturing a mixed powder or a process of manufacturing a powder mold.SOLUTION: An apparent density measuring method includes accommodating a metal powder in a container, applying an AC magnetic flux to the metal powder using an exciting coil disposed outside the container, detecting the AC magnetic flux transmitted through the metal powder by a detection coil disposed outside the container, and using an amplitude of the detected AC magnetic flux and an analytical curve prepared in advance for a relative relationship between an apparent density of the metal powder and the amplitude of the AC magnetic flux, thereby determining the apparent density of the metal powder. According to the apparent density measuring method, the apparent density of the metal powder can be measured highly accurately through an online and non-contact method without intercepting a process of manufacturing the mixed powder or a process of manufacturing a powder mold.

Abstract translation: 要解决的问题：提供一种能够根据在线和非接触方法高精度地测量金属粉末的表观密度而不截断制造混合粉末的方法或制造工艺的表观密度测量方法 一个粉末模具。 解决方案：一种表观密度测量方法包括：将金属粉末容纳在容器中，使用设置在容器外部的励磁线圈向金属粉​​末施加AC磁通量，通过检测来检测透过金属粉末的交流磁通量 设置在容器外部，并且使用检测到的AC磁通的幅度和预先准备的分析曲线来获得金属粉末的表观密度和AC磁通量的振幅之间的相对关系，从而确定 金属粉末。 根据表观密度测量方法，可以通过在线和非接触方法高精度地测量金属粉末的表观密度，而不会截留制造混合粉末的过程或制造粉末模具的过程。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012092407A

公开(公告)日：2012-05-17

申请号：JP2010242265

申请日：2010-10-28

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： UNAMI SHIGERU ,  KONO TAKASHI ,  ONO TOMOSHIGE ,  MAETANI TOSHIO

IPC: B22F1/00 ,  C22C38/00

Abstract: PROBLEM TO BE SOLVED: To provide iron-base mixed powder for powder metallurgy, improved in compaction density of a green compact, and at the same time significantly reduced in ejection force after the powder is compacted, by enhancing a flowability of the iron-base mixed powder using low alloy steel powder containing Mo and Mn, and thereby improved in density and strength of a sintered boy and reduced in a manufacturing cost.SOLUTION: In the iron-base mixed powder for powder metallurgy, containing iron-base powder as a main component, water atomized alloy steel powder including, as spare alloys, 0.3-1.0 mass% Mo and 0.1-0.25 mass% Mn in ratios to the entire iron-base mixed powder, and consisting of the balance Fe and inevitable impurities, is used as the iron-based powder. In the ratio to the entire iron-based mixed powder, 0.5-4.0 mass% Cu power, and 03-1.0 mass% graphite powder are contained in the iron-base mixed powder, and a flaky powder having a 100 μm or shorter average particle diameter in long diameters, a 10 μm or less thickness, and a 5 or more aspect ratio (the ratio of the long diameter to the thickness), is also added thereto in the range of 0.01-5.0 mass%.

Abstract translation: 要解决的问题：为了提供用于粉末冶金的铁基混合粉末，提高了压坯的压实密度，并且同时在粉末压实之后大大降低了喷射力，通过提高粉末的流动性 使用含有Mo和Mn的低合金钢粉末的铁基混合粉末，从而提高烧结男孩的密度和强度，并降低制造成本。

解决方案：以铁粉为主要成分的粉末冶金铁粉混合粉末中，作为备用合金的水雾合金钢粉末含有0.3〜1.0质量％的Mo和0.1-0.25质量％的Mn 与铁基混合粉末的整体比例，由铁和不可避免的杂质构成，用作铁基粉末。 与铁质混合粉末的比例相对于铁基混合粉末中含有0.5-4.0质量％的Cu电力和0.03-1.0质量％的石墨粉末，平均粒径为100μm以下的片状粉末 在0.01-5.0质量％的范围内，还添加了长径为10μm以下的厚度，长径比为5以上的长径比（长径比与厚度的比）。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2014025109A

公开(公告)日：2014-02-06

申请号：JP2012166277

申请日：2012-07-26

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： MAETANI TOSHIO ,  OZAKI YUKIKO

IPC: B22F1/00

Abstract: PROBLEM TO BE SOLVED: To provide mixed powder for powder metallurgy capable of sintering a molding without exerting an adverse influence on the inner-furnace environment of a sintering furnace and further capable of obtaining a sintered compact having excellent machinability.SOLUTION: Powder for improving machinability in mixed powder for powder metallurgy is composed of magnesium oxide (MgO) powder, alkali glass powder and/or alkali carbonate powder. Also, the blending ratio of the powder for improving machinability is controlled to the range of 0.01 to 1.0% by mass% to the total content of iron- based powder, powder for alloying and the powder for improving machinability.

Abstract translation: 要解决的问题：提供能够烧结成型的粉末冶金用混合粉末，而不会对烧结炉的内部炉体环境产生不利影响，并且还能够获得具有优异的机械加工性的烧结体。解决方案：用于提高机械加工性的粉末 用于粉末冶金的混合粉末由氧化镁（MgO）粉末，碱性玻璃粉末和/或碱金属碳酸盐粉末组成。 此外，为了提高机械加工性的粉末的配合比例，相对于铁基粉末，合金化粉末和提高机械加工性的粉末的总含量，控制在0.01〜1.0质量％的范围内。