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1. 发明公开

EP1097770A4 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
标题翻译：金属粉末材料和物品再压缩体及烧结体再压缩方法
公开(公告)号：EP1097770A4
公开(公告)日：2004-01-02
申请号：EP00909684
申请日：2000-03-17
申请人： UNISIA JECS CORP , JFE STEEL CORP
发明人： YOSHIMURA TAKASHI , AMMA HIROYUKI , FUJINAGA MASASHI , IIJIMA MITSUMASA , HATAI YASUO , MATSUMOTO TAKAYUKI , UENOSONO SATOSHI , UNAMI SHIGERU
IPC分类号： C22C33/02 , B22F3/02
CPC分类号： C22C33/02 , B22F2998/00 , B22F2998/10 , B22F3/16 , C22C33/0228 , B22F3/02 , B22F3/10 , B22F3/20
摘要： A re-compression molded body of a metallic powder molding material having an excellent deformability suitable for obtaining high-mechanical-strength mechanical parts made from sintered metals and a sintered body obtained from the re-compression molded body, and production methods thereof comprising the following steps: In a preforming process (1), metallic powder (7), obtained by mixing metal powder (7a) mainly containing iron with preferably at least 0.1 wt.%, more preferably at least 0.3 wt.% of graphite (7b), is compact-pressed to form a preform (8) with a density of at least 7.3 g/cm3. In a temporary sintering process (2), the preform (8) is temporarily sintered at a preset temperature to form a metallic powder molding material (9) having a structure in which graphite still remains in a metal powder grain boundary. In a re-compression process (3), the metallic powder molding material (9) is re-compression-molded to obtain a re-compression molded body (10). In a re-sintering process (4), the re-compression-molded body (10) is re-sintered to obtain a sintered body (11). In a heat treating process (5), the sintered body (11) is heat-treated to obtain a heat-treated sintered body (11).

2. 发明公开

KR20180021861A 소결 부재 원료용 합금 강분의 제조 방법 审中-公开
标题翻译：制造用于烧结成型原材料的合金钢粉的方法
公开(公告)号：KR20180021861A
公开(公告)日：2018-03-05
申请号：KR20187002583
申请日：2016-09-23
申请人： JFE STEEL CORP
发明人： NAKAMURA NAOMICHI , KOBAYASHI AKIO , UNAMI SHIGERU
IPC分类号： B22F9/08 , B22F1/00 , C22C38/18 , C22C38/60
CPC分类号： B22F1/00 , B22F9/08 , C22C38/00 , C22C38/18 , C22C38/60
摘要： 산화되기쉬운 Cr 이나 Mo 를합금화원소로서함유하는합금강분을, 워터아토마이즈법에의해효율적이고또한안정적으로제조하는방법을제공한다. 용강을워터아토마이즈하여워터아토마이즈철기분말을얻는워터아토마이즈공정과, 상기워터아토마이즈철기분말에, 환원을위한열 처리를실시하여합금강분을얻는열 처리공정을갖고, 상기합금강분이, 질량% 로, Cr:0.3 ∼ 3.5 % 및 Mn:0.08 % 초과, 1.0 % 이하를합금화원소로서함유하고, 잔부 Fe 및불가피불순물로이루어지는성분조성을갖고, 상기용강중에있어서의 C 함유량 [C] (질량%) 와, 상기용강중에있어서의 Cr, Mn 및 V 의함유량 [Cr], [Mn] 및 [V] (질량%) 가, 하기 (1) 식의관계를만족시키는, 소결부재원료용합금강분의제조방법. 0.07 ≤ [C]/{[Cr]+ 2([Mn] + [V])} ≤ 0.23 … (1)
摘要翻译：本发明提供一种通过水雾化高效且稳定地制造含有易氧化性的Cr或Mo作为合金元素的合金钢粉的方法。一种用于制造用于烧结构件材料的合金钢粉的方法，所述合金钢粉具有水雾化钢水的水雾化步骤以获得水雾化的铁基粉末，以及热处理步骤，用于使所述水雾化的铁基粉末经受减少热处理并获得合金钢粉; 合金钢粉末含有0.3-3.5％的Cr和大于0.08％且不大于1.0％的Mn（表示质量的百分比量）作为合金元素，并且另外包含Fe和不可避免的杂质，C [C] （质量％）和满足式（1）所示关系的钢水中的Cr [Cr]，Mn [Mn]和V [V]（质量％）的量。 0.07≤[C] / {[Cr] 2/3 + 2（[Mn] + [V]）≤0.23...（1）

3. 发明专利

CA2355562A1 IRON-BASED SINTERED POWDER METAL BODY, MANUFACTURING METHOD THEREOF AND MANUFACTURING METHOD OF IRON-BASED SINTERED COMPONENT WITH HIGH STRENGTH AND HIGH DENSITY 未知
公开(公告)号：CA2355562A1
公开(公告)日：2002-02-28
申请号：CA2355562
申请日：2001-08-23
申请人： KAWASAKI STEEL CO , UNISIA JECS CORP
发明人： KOIZUMI SHIN , NAKAMURA NAOMICHI , HATAI YASUO , ANMA HIROYUKI , UENOSONO SATOSHI , IIJIMA MITSUMASA , UNAMI SHIGERU , FUJINAGA MASASHI , YOSHIMURA TAKASHI
IPC分类号： B22F3/12 , B22F3/10 , C22C33/02 , B22F1/00
摘要： A sintered iron-based powder metal body with outstandingly lower re-compacting load and having a high density and a method of manufacturing an iron-based sintered component with fewer pores of a sharp shape and having high strength and high density, the method comprising mixing, an iron-based metal powder containing at most about 0.05% of carbon, at most about 0.3% of oxygen, at most about 0.010% of nitrogen, with at least about 0.03% and at most about 0.5% of graphite powder and a lubricant, preliminarily compacting the mixture into a preform, the density of which is about 7.3 Mg/m3 or more, and preliminarily sintering the preform in a non-oxidizing atmosphere in which a partial pressure of nitrogen is about 30 kPa or less at a temperature of about 1000ÀC or higher and about 1300ÀC or lower, thereby forming a sintered iron-based powder metal body with outstandingly lower re-compacting load and having high deformability, the density of which is about 7.3 Mg/m3 or more and which contains at least about 0.10% and at most about 0.50 of carbon, at most about 0.010% of oxygen and at most about 0.010% of nitrogen, and which comprises at most about 0.02% of free carbon, and, further applying re- compaction and re-sintering and/or heat treatment thereby forming a sintered component, as well as the method alternatively comprising applying preliminary sintering in an atmosphere with no restriction of the nitrogen partial pressure and then annealing instead of the sintering step, thereby obtaining a sintered iron-based powder metal body with the nitrogen content of at most about 0.010.

4. 发明公开

KR20180021150A 소결 부재 원료용 합금강분의 제조 방법 审中-公开
标题翻译：用于生产烧结构件起始材料的合金钢粉的方法
公开(公告)号：KR20180021150A
公开(公告)日：2018-02-28
申请号：KR20187002470
申请日：2016-09-09
申请人： JFE STEEL CORP
发明人： NAKAMURA NAOMICHI , KOBAYASHI AKIO , UNAMI SHIGERU
IPC分类号： B22F9/08 , B22F1/00 , C22C38/18 , C22C38/28
CPC分类号： B22F1/00 , B22F9/08 , C22C38/00 , C22C38/18 , C22C38/28
摘要： 산화되기쉬운 Cr 을합금화원소로서함유하는합금강분을, 물아토마이즈법에의해효율적으로, 안정적으로제조하는방법을제공한다. 소결부재원료용합금강분의제조방법으로서, 용강을물 아토마이즈하여물 아토마이즈철기분말을얻는물 아토마이즈공정과, 상기물 아토마이즈철기분말에, 환원을위한열처리를실시하여합금강분을얻는열처리공정을갖고, 상기합금강분이, 질량% 로, Cr:0.3 ∼ 3.5 % 및 Mn:0.08 % 이하를합금화원소로서함유하고, 잔부 Fe 및불가피불순물로이루어지는성분조성을갖고, 상기용강중에있어서의 C 함유량 [C] (질량%) 과, 상기용강중에있어서의 Cr 함유량 [Cr] (질량%) 이, 하기 (1) 식의관계를만족하는, 소결부재원료용합금강분의제조방법. 0.10 ≤ [C]/[Cr]≤ 0.35 …… (1)
摘要翻译：本发明提供一种经由水雾化处理高效且稳定地制造含有易氧化性Cr作为合金元素的合金化钢粉的方法。该烧结体原料用合金钢粉的制造方法包括：通过对钢水进行水雾化而得到水雾化铁基粉末的水雾化工序和通过加热获得合金化钢粉的热处理工序 - 处理水雾化的铁基粉末以进行还原。合金化钢粉的成分组成为，作为合金元素，含有Cr：0.3〜3.5质量％，Mn：0.08质量％以下，余量由Fe和不可避免的杂质构成。钢水中的C含量[C]（质量％）和钢水中的Cr含量[Cr]（质量％）满足式（1）的关系：0.10≤[C] / [Cr] 2/3 ≤0.35。

5. 发明专利

CA2355562C IRON-BASED SINTERED POWDER METAL BODY, MANUFACTURING METHOD THEREOF AND MANUFACTURING METHOD OF IRON-BASED SINTERED COMPONENT WITH HIGH STRENGTH AND HIGH DENSITY 未知
公开(公告)号：CA2355562C
公开(公告)日：2012-07-17
申请号：CA2355562
申请日：2001-08-23
申请人： KAWASAKI STEEL CO , UNISIA JECS CORP
发明人： NAKAMURA NAOMICHI , UENOSONO SATOSHI , UNAMI SHIGERU , FUJINAGA MASASHI , YOSHIMURA TAKASHI , IIJIMA MITSUMASA , KOIZUMI SHIN , ANMA HIROYUKI , HATAI YASUO
IPC分类号： B22F3/12 , C22C33/02 , B22F1/00 , B22F3/10
摘要： A sintered iron-based powder metal body with outstandingly lower re-compacting load and having a high density and a method of manufacturing an iron-based sintered component with fewer pores of a sharp shape and having high strength and high density, the method comprising mixing, an iron-based metal powder containing at most about 0.05% of carbon, at most about 0.3% of oxygen, at most about 0.010% of nitrogen, with at least about 0.03% and at most about 0.5% of graphite powder and a lubricant, preliminarily compacting the mixture into a preform, the density of which is about 7.3 Mg/m3 or more, and preliminarily sintering the preform in a non-oxidizing atmosphere in which a partial pressure of nitrogen is about 30 kPa or less at a temperature of about 1000°C or higher and about 1300°C or lower, thereby forming a sintered iron-based powder metal body with outstandingly lower re-compacting load and having high deformability, the density of which is about 7.3 Mg/m3 or more and which contains at least about 0.10% and at most about 0.50 of carbon, at most about 0.010% of oxygen and at most about 0.010% of nitrogen, and which comprises at most about 0.02% of free carbon, and, further applying re-compaction and re-sintering and/or heat treatment thereby forming a sintered component, as well as the method alternatively comprising applying preliminary sintering in an atmosphere with no restriction of the nitrogen partial pressure and then annealing instead of the sintering step, thereby obtaining a sintered iron-based powder metal body with the nitrogen content of at most about 0.010%.

6. 发明专利

CA2334753A1 METALLIC POWDER MOLDING MATERIAL AND ITS RE-COMPRESSION MOLDED BODY AND SINTERED BODY OBTAINED FROM THE RE-COMPRESSION MOLDED BODY AND PRODUCTION METHODS THEREOF 未知
公开(公告)号：CA2334753A1
公开(公告)日：2000-10-26
申请号：CA2334753
申请日：2000-03-17
申请人： UNISIA JECS CORP , KAWASAKI STEEL CO
发明人： FUJINAGA MASASHI , AMMA HIROYUKI , HATAI YASUO , IIJIMA MITSUMASA , YOSHIMURA TAKASHI , UNAMI SHIGERU , UENOSONO SATOSHI , MATSUMOTO TAKAYUKI
IPC分类号： C22C33/02 , B22F3/02
摘要： A re-compression molded body of a metallic powder molding material having an excellent deformability suitable for obtaining high-mechanical-strength mechanical parts made from sintered metals and a sintered body obtained from the re-compression molded body, and production methods thereof comprising th e following steps: In a preforming process (1), metallic powder (7), obtained by mixing metal powder (7a) mainly containing iron with preferably at least 0.1 wt.%, more preferably at least 0.3 wt.% of graphite (7b), is compact-pressed to form a preform (8) with a density of at least 7.3 g/cm3. In a temporary sintering process (2), the preform (8) is temporarily sintered at a preset temperature to form a metallic powder molding material (9) having a structur e in which graphite still remains in a metal powder grain boundary. In a re- compression process (3), the metallic powder molding material (9) is re- compression-molded to obtain a re-compression molded body (10). In a re- sintering process (4), the re-compression-molded body (10) is re-sintered to obtain a sintered body (11). In a heat treating process (5), the sintered bo dy (11) is heat-treated to obtain a heat-treated sintered body (11).

7. 发明申请

WO2015045273A1 ALLOY STEEL POWDER FOR POWDER METALLURGY, AND PROCESS FOR PRODUCING IRON-BASED SINTERED OBJECT 审中-公开
标题翻译：用于粉末冶金的合金钢粉和用于生产基于铁的烧结对象的工艺
公开(公告)号：WO2015045273A1
公开(公告)日：2015-04-02
申请号：PCT/JP2014004383
申请日：2014-08-26
申请人： JFE STEEL CORP
发明人： MAETANI TOSHIO , UNAMI SHIGERU , ONO TOMOSHIGE , OZAKI YUKIKO
IPC分类号： B22F1/00 , C22C33/02 , C22C38/00
CPC分类号： B22F1/0074 , B22F1/0011 , B22F3/16 , B22F9/02 , B22F2301/35 , B22F2304/10 , C22C33/0264 , C22C38/00 , C22C38/002 , C22C38/02 , C22C38/12 , C22C38/16
摘要： According to the present invention, an alloy steel powder for powder metallurgy is regulated to have a specific surface area of 0.100 m2/g or larger, contain Mo in an amount in the range of 0.2-1.5 mass%, and contain a graphite powder in an amount in the range of 0.1-1.0 mass% per 100 mass% the alloy steel powder for powder metallurgy. Thus, a sintered object which combines strength and toughness on a high level can be obtained from the alloy steel powder for powder metallurgy.
摘要翻译：根据本发明，粉末冶金用合金钢粉末的比表面积为0.100m 2 / g以上，含有0.2〜1.5质量％的Mo，含有石墨粉末相对于粉末冶金用合金钢粉末为100质量％0.1〜1.0质量％的范围。因此，可以从用于粉末冶金的合金钢粉末获得高强度结合强度和韧性的烧结体。

8. 发明申请

WO2014196123A8 ALLOY STEEL POWDER FOR POWDER METALLURGY AND METHOD OF PRODUCING IRON-BASED SINTERED BODY 审中-公开
标题翻译：用于粉末冶金的合金钢粉和生产基于铁的烧结体的方法
公开(公告)号：WO2014196123A8
公开(公告)日：2015-10-22
申请号：PCT/JP2014002343
申请日：2014-04-25
申请人： JFE STEEL CORP
发明人： MAETANI TOSHIO , UNAMI SHIGERU
IPC分类号： B22F1/02 , B22F1/00 , C22C33/02 , C22C38/00 , C22C38/12 , C22C38/16
CPC分类号： 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
摘要： The present invention makes it possible to obtain an alloy steel powder for powder metallurgy that comprises an iron-based powder as a main component thereof and that can be used to produce a sintered body that has high levels of both strength and toughness as a result of comprising each of the following: an iron-based powder that contains a reduced iron powder; 0.2-1.5 mass% of Mo as a percentage of the entire alloy steel powder; and 0.5-4.0 mass% of Cu powder and 0.1-1.0 mass% of graphite powder as percentages of the entire alloy steel powder.
摘要翻译：本发明使得可以获得包含铁基粉末作为其主要成分的粉末冶金用合金钢粉末，其可用于制造由于强度和韧性而具有高水平的强度和韧性的烧结体包括以下各项：含有还原铁粉的铁基粉末; 0.2-1.5质量％的Mo占整个合金钢粉的百分比; 和0.5-4.0质量％的Cu粉末和0.1-1.0质量％的石墨粉末，作为整个合金钢粉末的百分数。

9. 发明专利

JP2002294388A IRON BASED STOCK FOR POWDER MOLDING, PRODUCTION METHOD THEREFOR AND METHOD FOR PRODUCING HIGH STRENGTH AND HIGH DENSITY IRON BASED SINTERED COMPACT 审中-公开
公开(公告)号：JP2002294388A
公开(公告)日：2002-10-09
申请号：JP2001263612
申请日：2001-08-31
申请人： KAWASAKI STEEL CO , UNISIA JECS CORP
发明人： NAKAMURA NAOMICHI , UENOSONO SATOSHI , UNAMI SHIGERU , FUJINAGA MASASHI , YOSHIMURA TAKASHI , IIJIMA MITSUMASA , KOIZUMI SUSUMU , YASUMA HIROYUKI , HATAI YASUO
IPC分类号： C22C33/02 , B22F3/02 , B22F3/10 , B22F3/24 , C22C38/00 , C22C38/46
摘要： PROBLEM TO BE SOLVED: To provide an iron based stock for powder molding which has an exceedingly low compression molding load, and high deformability, and a method for producing an iron based sintered compact which has little pores with sharp shape, and high strength and high density. SOLUTION: Iron based metal powder containing =7.3 mg/m . The molded body is subjected to sintering at >1,000 to 1,300 deg.C in a nonoxidizing atmosphere under the partial pressure of nitrogen of =7.3 Mg/m and a low load on compression molding and high deformability can be obtained. Further, the stock is subjected to compression molding and resintering and/or heat treatment and formed into a sintered member. Also, annealing can be applied thereto after the previous sintering.

10. 发明专利

JP2000355726A ALLOY STEEL POWDER COMPACTING STOCK AND ALLOY STEEL POWDER WORKED BODY 失效
公开(公告)号：JP2000355726A
公开(公告)日：2000-12-26
申请号：JP2000115322
申请日：2000-04-17
申请人： UNISIA JECS CORP , KAWASAKI STEEL CO
发明人： IIJIMA MITSUMASA , HATAI YASUO , YASUMA HIROYUKI , MATSUMOTO TAKAYUKI , YOSHIMURA TAKASHI , FUJINAGA MASASHI , UENOSONO SATOSHI , UNAMI SHIGERU
IPC分类号： C22C33/02 , B22F3/035 , B22F3/10 , B22F3/24 , B22F5/00 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide an alloy steel powder compacting stock contg. a prescribed amt. of graphite suitable for obtaining a member high in mechanical strength and high in deforming performance and to provide an alloy steel powder worked body increased in hardness and the other mechanical properties by moreover working it. SOLUTION: Metal powder obtd. by mixing alloy steel powder essentially consisting of iron and contg. alloy elements with >=0.1 mass % graphite 3b is compacted to make a preliminarily compacted body of >=7.3 g/cm3 density, and the preliminarily compacted body is temporarily sintered at a prescribed temp. to obtain an alloy steel powder compacting stock having a structure in which the graphite 3b remains on the boundaries of the metal powder 3a, and the carbides or the like of iron and alloy elements is hardly produced. This compacting stock is recompacted to form into a plastic worked body, which is moreover resintered to form into a resintered body. Then, it is furthermore subjected to heat treatment to form into a heat treated body.

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