公开(公告)号：US5100612A

公开(公告)日：1992-03-31

申请号：US540648

申请日：1990-06-19

Applicant: Fumio Obata ,  Toshiaki Tanaka

Inventor： Fumio Obata ,  Toshiaki Tanaka

IPC: C21C1/08 ,  C21C1/10 ,  C22C33/08 ,  C22C37/04

CPC classification number: C21C1/10 ,  C22C37/04

Abstract: Spheroidal graphite cast iron containing 0.016-0.030 weight % of S, in which the number of spheroidal graphite particles having a diameter of 2 .mu.m or more is such that it is 1700/mm.sup.2 or more when an as-cast iron portion measured has a thickness of 3 mm. This cast iron is produced by:(a) preparing an Fe alloy melt consisting essentially of, by weight, 3.0-4.0% of C, 1.8-5.0% of Si, 1.0% or less of Mn, 0.20% or less of P, 0.005-0.015% of S and balance Fe and inevitable impurities;(b) adding 0.020-0.050% of a lanthanide rare earth metal to the Fe alloy melt before or simultaneously with adding a spheroidizing agent;(c) subjecting the melt to a spheroidizing treatment by using the spheroidizing agent; and(d) adding a sulfur-containing material to the melt so that the amount of S is adjusted to 0.016-0.030 weight %, and that the amount of the lanthanide rare earth metal is adjusted to 0.010-0.040 weight %.

Abstract translation: 含0.016-0.030重量％的S的球状石墨铸铁，其中直径为2μm或更大的球状石墨颗粒的数量使得当测量的铸铁部分具有1700 / mm 2或更大时 厚度3毫米。 这种铸铁是通过以下方法制备的：（a）制备基本上由以下组成的Fe合金熔体：以重量计，3.0-4.0％的C，1.8-5.0％的Si，1.0％以下的Mn，0.20％以下的P， 0.005-0.015％的S和余量的Fe和不可避免的杂质; （b）在加入球化剂之前或同时向Fe合金熔体中加入0.020-0.050％的镧系稀土金属; （c）使用球化剂对熔体进行球化处理; 和（d）向熔体中加入含硫材料，使S的量调节至0.016-0.030重量％，并将稀土类稀土金属的量调节至0.010-0.040重量％。

公开(公告)号：US5186233A

公开(公告)日：1993-02-16

申请号：US862230

申请日：1992-04-02

Applicant: Fumio Obata ,  Toshiaki Tanaka ,  Hideaki Nagayoshi

Inventor： Fumio Obata ,  Toshiaki Tanaka ,  Hideaki Nagayoshi

IPC: C21C1/10 ,  C22C33/08

CPC classification number: C22C33/08

Abstract: A spheroidal graphite cast iron article having a thin portion and a thick portion, the number of spheroidal graphite particles having a diameter of 2 .mu.m or more being 600 /mm.sup.2 or more and less than 2000 /mm.sup.2 in the thin portion and 130 /mm.sup.2 or more and less than 600 /mm.sup.2 in the thick portion, and spheroidization percentage being 70% or more in the thick portion, is produced by a method comprising the steps of: (a) preparing an iron-base alloy melt having a composition consisting essentially by weight of 3.0-4.0% of C, 0.8-1.7% of Si, 1.0% or less of Mn, 0.2% or less of P, 0.01-0.2% of S, the balance being substantially Fe and inevitable impurities; (b) desulfurizing the iron-base alloy melt to control the sulfur content of the melt to less that 0.01% by weight; (c) adding a sulfur-containing material to the melt in such an amount that the sulfur content of the melt becomes 0.011-0.03% by weight; and (d) adding an Mg-containing material and a lanthanide element to the melt to conduct a spheroidizing treatment.

Abstract translation: 具有薄壁部分和厚壁部分的球墨铸铁制品，薄壁部分的直径为2μm或更大的球形石墨颗粒的数量为600 / mm 2或更小且小于2000 / mm 2，而130 / mm 2 或更多且小于600 / mm 2的厚部分，并且厚部分中的球化百分比为70％以上，是通过包括以下步骤的方法制备的：（a）制备具有以下组成的铁基合金熔体： 基本上重量为3.0-4.0％的C，0.8-1.7％的Si，1.0％或更少的Mn，0.2％或更少的P，0.01-0.2％的S，余量基本上是Fe和不可避免的杂质; （b）将铁基合金熔体脱硫以将熔体的硫含量控制在0.01重量％以下; （c）将熔体中的含硫物质加入到熔体中，使得熔体的硫含量为0.011-0.03重量％; 和（d）向熔体中加入含Mg材料和镧系元素进行球化处理。

公开(公告)号：US4990194A

公开(公告)日：1991-02-05

申请号：US403876

申请日：1989-09-07

Applicant: Fumio Obata ,  Hideaki Nagayoshi ,  Eiji Nakano

Inventor： Fumio Obata ,  Hideaki Nagayoshi ,  Eiji Nakano

IPC: C21D5/00 ,  C21D5/02 ,  C22C37/04

CPC classification number: C21D5/02

Abstract: A thin high-strength article of spheroidal graphite cast iron having graphite particles dispersed in a ferrite matrix containing 10% or less of pearlite, characterized in that there are substantially no fine gaps between the graphite particles and the ferrite matrix. It is produced by pouring a melt having a spheroidal graphite cast iron composition into a casting mold; removing the casting mold by shake-out, while substantially the entire portion of the resulting cast iron product is still at a temperature of its A.sub.3 transformation point or higher; immediately introducing the cast iron product into a uniform temperature zone of a continuous furnace kept at a temperature of the A.sub.3 transformation point or higher, where the cast iron product is held for 30 minutes or less to decompose cementite contained in the matrix; and transferring the cast iron product into a cooling zone of the continuous furnace to cool the cast iron product at such a cooling speed as to achieve the ferritization of the matrix.

Abstract translation: 一种具有分散在含有10％以下的珠光体的铁素体基体中的石墨粒子的球状石墨铸铁的薄型高强度物品，其特征在于，在石墨粒子与铁素体基体之间基本上没有微细的间隙。 通过将具有球墨铸铁组合物的熔体浇注到铸模中来制造; 通过振动除去铸模，同时基本上所得铸铁制品的整个部分仍然处于其A3相变点或更高的温度; 立即将铸铁产品引入保持在A3转化点或更高温度的连续炉的均匀温度区，其中铸铁产品保持30分钟以下以分解包含在基质中的渗碳体; 并将铸铁产品转移到连续炉的冷却区中，以这样的冷却速度冷却铸铁产品，以实现基体的铁素体化。

公开(公告)号：US4021232A

公开(公告)日：1977-05-03

申请号：US600117

申请日：1975-07-29

Applicant: Michio Makino ,  Takashi Kawai ,  Ryoji Takahashi ,  Yoshimi Kubo ,  Fumio Obata

Inventor： Michio Makino ,  Takashi Kawai ,  Ryoji Takahashi ,  Yoshimi Kubo ,  Fumio Obata

IPC: C21C1/00 ,  C21C1/10 ,  C21C5/52

CPC classification number: C21C1/10 ,  C21C1/00 ,  Y02P10/212

Abstract: A cast iron melting process comprising the steps of charging recarburizer in the lower portion of an electric arc furnace, charging iron scraps, and charging oxidizing slag-forming agents and/or sponge irons, and/or blowing oxygen therein to make oxidizing slag, whereby a recarburizing reaction of an iron melt with the recarburizer is carried out in parallel with an oxidizing reaction of an iron melt with an oxidizing slag, thereby minimizing the loss of C and Si, while improving a recarburizing yield, with the resulting improvements in economy.

Abstract translation: 一种铸铁熔炼方法，其特征在于，包括以下步骤：在电弧炉的下部装入再烧结炉，加入铁屑，加入氧化炉渣形成剂和/或海绵铁，和/或在其中吹入氧气以制造氧化渣，由此 铁熔体与再碳化器的再烧结反应与铁熔体与氧化炉渣的氧化反应平行进行，从而最小化C和Si的损失，同时提高再烧成品率，从而提高经济性。

公开(公告)号：US06195149B1

公开(公告)日：2001-02-27

申请号：US08860098

申请日：1997-07-22

Applicant: Takumi Kodera ,  Kozo Gyota ,  Fumio Obata ,  Masami Murata

Inventor： Takumi Kodera ,  Kozo Gyota ,  Fumio Obata ,  Masami Murata

IPC: G02F11339

CPC classification number: G02F1/133351 ,  G02F1/1339 ,  G02F1/1341

Abstract: A method for producing a liquid crystal panel by forming a plurality of liquid crystal sealing-in areas between a transparent pair of large-area substrates and dividing the liquid crystal sealing-in areas into separate liquid crystal sealing-in areas. The method includes (A) forming transparent electrodes which form a plurality of liquid crystal panels on a surface of each of the large-area substrates, (B) forming seals, each of which surround the transparent electrode required to form one liquid crystal panel, on one of the large-area substrates in order to form liquid crystal injection openings, and forming liquid crystal injection openings in the seals, (C) bonding together the large-area substrates such that their transparent electrodes face each other, with the seals interposed therebetween, (D) removing a portion of one of the pair of large-area substrates such that the liquid crystal injection opening is exposed to the outside, (E) injecting liquid crystal into the liquid crystal sealing-in area through the liquid crystal injection opening exposed to the outside, and then sealing the liquid crystal injection opening with a sealing agent, and (F) dividing the pair of large-area substrates into separate panels after the liquid crystal injection. According to this method, liquid crystal injection can be performed without completely cutting the large-area liquid crystal panel so that the production steps are simplified.

Abstract translation: 通过在透明的一对大面积基板之间形成多个液晶密封区域并将液晶封入区域分割为分立的液晶密封区域来制造液晶面板的方法。 该方法包括：（A）形成在每个大面积基板的表面上形成多个液晶面板的透明电极，（B）形成密封件，（B）围绕形成一个液晶面板所需的透明电极， 在大面积基板中的一个上形成液晶注入开口，并在密封件中形成液晶注入口，（C）将大面积基板彼此粘合在一起，使得它们的透明电极彼此面对， （D）去除一对大面积基板中的一方的一部分，使得液晶注入口暴露于外部，（E）通过液晶注入将液晶注入液晶封入区域 开口暴露在外面，然后用密封剂密封液晶注入口，（F）在液体之后将一对大面积基板分成分开的面板 晶体注射。 根据这种方法，可以在不完全切割大面积液晶面板的情况下进行液晶注入，从而简化了制造步骤。

公开(公告)号：US4807728A

公开(公告)日：1989-02-28

申请号：US26750

申请日：1987-03-17

Applicant: Makoto Suenaga ,  Fumio Obata

Inventor： Makoto Suenaga ,  Fumio Obata

IPC: B22D15/00 ,  F16D65/00 ,  F16D65/10 ,  F16D65/12 ,  F16D65/02 ,  B22D19/00

CPC classification number: B22D15/00 ,  F16D65/0006 ,  F16D65/10 ,  F16D65/125 ,  F16D2065/1344 ,  F16D2250/0007

Abstract: A brake member integrally cast from a single melt and composed of a sliding portion and a hub portion, the sliding portion having a flaky graphite cast iron microstructure with a good damping capacity and the hub portion having a high-strength cast iron microstructure. The sliding portion which may be a drum or a rotor has a damping capacity Q.sup.-1 of higher than 16.times.10.sup.-3. It is manufactured by pouring a melt having a hyper-eutectic flaky graphite cast iron composition into a cavity of a sand mold in which a chiller is embedded adjacent to a cavity region for the hub portion.

Abstract translation: 由单个熔体一体铸造并由滑动部分和毂部组成的制动部件，该滑动部分具有具有良好阻尼能力的片状石墨铸铁微结构，并且该毂部分具有高强度铸铁微结构。 可以是滚筒或转子的滑动部分具有高于16×10-3的阻尼能力Q-1。 它是通过将具有超共晶片状石墨铸铁组合物的熔体倒入砂模的空腔中而制造的，其中冷却器被嵌入邻近用于轮毂部分的腔区域。

公开(公告)号：US4889688A

公开(公告)日：1989-12-26

申请号：US273798

申请日：1988-11-18

Applicant: Makoto Suenaga ,  Fumio Obata ,  Jun Sakai ,  Takeshi Natsume

Inventor： Makoto Suenaga ,  Fumio Obata ,  Jun Sakai ,  Takeshi Natsume

IPC: C21C1/10 ,  C22C33/10

CPC classification number: C22C33/10 ,  C21C1/105

Abstract: Conventionally, heat treatment was necessary in the final stage of producing nodular cast iron products to give the nodular cast iron with desired mechanical properties. This was necessary because of the loss of graphitization capability of the molten metal when it is being formed into nodular cast iron during the process of spheroidization, and the heat treatment is therefore required to decompose cementite formation and thereby promote graphitization. The process of producing nodular cast iron according to the present invention can achieve the promotion of graphitization and the increase in the number of graphite nodules, which are both important for the production of high-quality thin-shell cast iron products, through the synergetic effect of processing the molten metal with a graphitization agent such as SiC or CaC.sub.2 and of adding a graphite atomization agent such as Bi. The nodular cast iron produced by the process of the present invention can be made into thin-shell products which are provided with favorable mechanical properties either without any heat treatment or at most with low-temperature heat treatment.

公开(公告)号：US20120024572A1

公开(公告)日：2012-02-02

申请号：US13175012

申请日：2011-07-01

Applicant: Kenji NAOI ,  Fumio Obata ,  Yuki Matsunami

Inventor： Kenji NAOI ,  Fumio Obata ,  Yuki Matsunami

IPC: H01B5/16 ,  H01B1/22 ,  B82Y99/00

CPC classification number: H01B1/22 ,  B82Y30/00 ,  C08F220/06 ,  C08F220/18 ,  C08F220/32 ,  C08J5/005 ,  C08J7/045 ,  C08J2333/06 ,  C08J2367/03 ,  C08J2433/02 ,  C08K3/08 ,  C08K7/06

Abstract: A conductive composition including metal nanowires having an average minor axis diameter of 5 nm to 45 nm, and a water-insoluble polymer containing at least one ethylenically unsaturated group selected from an acryloyl group and a methacryloyl group.

Abstract translation: 包含平均短轴直径为5nm〜45nm的金属纳米线的导电组合物，以及含有选自丙烯酰基和甲基丙烯酰基的至少一种烯键式不饱和基团的水不溶性聚合物。

公开(公告)号：US5346561A

公开(公告)日：1994-09-13

申请号：US22623

申请日：1993-02-25

Applicant: Fumio Obata ,  Hisashi Yasuda ,  Hideaki Nagayoshi ,  Kiyoshi Suehara ,  Kouhei Imanishi ,  Toshiki Yoshida

Inventor： Fumio Obata ,  Hisashi Yasuda ,  Hideaki Nagayoshi ,  Kiyoshi Suehara ,  Kouhei Imanishi ,  Toshiki Yoshida

IPC: C21D5/00 ,  C22C37/04

CPC classification number: C21D5/00 ,  C22C37/04 ,  C21D2211/005 ,  C21D2211/006 ,  Y10S148/902

Abstract: The spheroidal graphite cast iron member having a surface layer portion mostly composed of a ferrite phase and having a thickness of at least 1 mm, and an inner portion composed of a pearlite phase and a ferrite phase, the surface layer portion having a ferritization ratio of 70% or more which is larger than that of the inner portion by at least about 15% is produced by (a) pouring a spheroidal graphite cast melt into a casting mold; (b) removing the casting mold by shake-out after the completion of solidification of the melt, while substantially the entire portion of the resulting cast iron product is still at a temperature of its A.sub.1 transformation point or higher; (c) when the temperature difference between the surface layer portion and the inner portion has become 40.degree.-60.degree. C., introducing the cast iron product into a uniform-temperature furnace kept at 750.degree.-900.degree. C., where the cast iron product is held for such a time period as to produce the surface layer portion having a ferritization ratio of 70% or more which is larger than that of the inner portion by at least about 15%; and (d) transferring the cast iron product into a cooling furnace to cool the cast iron product at a cooling speed of 15.degree.-100.degree. C./min.

Abstract translation: 所述球墨铸铁构件具有主要由铁素体相组成且厚度为至少1mm的表层部分和由珠光体相和铁素体相组成的内部，所述表层部分具有铁素体相的铁素体相， 通过（a）将球状石墨铸造熔体注入铸模中来制造比内部部分大至少约15％的70％或更多的70％ （b）在熔融物凝固完成之后通过摇晃除去铸模，同时基本上所得铸铁产品的整个部分仍处于其A1相变点或更高的温度; （c）当表面层与内部之间的温差变为40°-60°C时，将铸铁产品引入保持在750°-900℃的均匀炉中，铸件 铁产品保持这样一段时间，以便产生具有比内部部分大的铁素体比70％或更多的表层部分至少约15％的表面层部分; 和（d）将铸铁产品转移到冷却炉中，以15℃-100℃/ min的冷却速度冷却铸铁产品。