公开(公告)号：US3950191A

公开(公告)日：1976-04-13

申请号：US516407

申请日：1974-10-21

申请人： Kenji Ito ,  Isao Takahashi ,  Yo Ito ,  Takuo Imai ,  Fumio Kosumi ,  Hideo Kuguminato

发明人： Kenji Ito ,  Isao Takahashi ,  Yo Ito ,  Takuo Imai ,  Fumio Kosumi ,  Hideo Kuguminato

IPC分类号： C21D3/04 ,  C21D8/02 ,  C22C38/00 ,  C21D9/48

CPC分类号： C21D8/0273 ,  C22C38/00 ,  C21D3/04 ,  C21D8/0236 ,  C21D8/0257

摘要： Steel sheets having an excellent enamelability are produced by adjusting the carbon, silicon, manganese, aluminum, oxygen and boron contents in a molten steel to be not more than 0.020% of carbon, not more than 0.03% of silicon, not more than 0.50% of manganese, not more than 0.010% of aluminum, nor more than 0.050% of oxygen, boron within a range of 0.003-0.020% being in such an amount B(%).times.0(%) of more than 1.times.10.sup..sup.-5 and the remainder being inevitable impurities and iron, and hot rolling the resulting steel, cold rolling the steel and subjecting to a recrystallization annealing in a conventional manner.

公开(公告)号：US4596600A

公开(公告)日：1986-06-24

申请号：US771212

申请日：1985-08-30

申请人： Tetsuya Fujii ,  Toshikazu Sakuraya ,  Hideo Nakamura ,  Yasuhiro Habu ,  Takuo Imai

发明人： Tetsuya Fujii ,  Toshikazu Sakuraya ,  Hideo Nakamura ,  Yasuhiro Habu ,  Takuo Imai

IPC分类号： C21C5/34 ,  C21C5/35 ,  C21C5/38 ,  C21C7/10

CPC分类号： C21C5/35 ,  C21C5/38

摘要： A steel-making process in a converter, which includes using a carbon monoxide gas as an agitating gas supplied from a position lower than molten metal bath level.

摘要翻译： 一种转炉中的炼钢工艺，包括使用一氧化碳气体作为从低于熔融金属液面的位置供给的搅拌气体。

公开(公告)号：US08623517B2

公开(公告)日：2014-01-07

申请号：US13572915

申请日：2012-08-13

申请人： Ryo Sato ,  Takuo Imai ,  Kentaro Tujimoto

发明人： Ryo Sato ,  Takuo Imai ,  Kentaro Tujimoto

IPC分类号： B32B15/04 ,  B32B15/18 ,  B32B15/20 ,  F16J15/00 ,  F16C33/02

CPC分类号： C23C30/00 ,  B22F7/04 ,  B22F9/082 ,  B32B15/015 ,  C22C1/0425 ,  C22C9/00 ,  C22C9/02 ,  F16C33/121 ,  F16C2204/18 ,  F16C2240/48 ,  F16C2240/70 ,  Y10T428/12063 ,  Y10T428/12139 ,  Y10T428/12924 ,  Y10T428/12972

摘要： In a copper-based sliding material in which a Cu alloy layer contains 5% to 30% by mass of Bi, and the balance consisting of Cu and an unavoidable impurity, Bi is dispersed as particles of a Bi phase in the Cu alloy layer, and the mass ratio of the particles having a particle size of 2 to 50 μm and a circularity of 0.1 to 0.7 is 30% or more in the entire Bi phase in the Cu alloy layer, so that the particles of the Bi phase are uniformly dispersed in the Cu alloy layer. Therefore, the particles of the Bi phase in the Cu alloy layer are sequentially exposed to a sliding surface as wear of the sliding material progresses while excessive flow-out of molten Bi is prevented, so that improved seizure resistance is achieved.

摘要翻译： 在Cu合金层含有5质量％〜30质量％的Bi的铜基滑动材料中，余量由Cu和不可避免的杂质构成，Bi作为Bi相的粒子分散在Cu合金层中， 在Cu合金层的整个Bi相中，粒径为2〜50μm，圆形度为0.1〜0.7的粒子的质量比为30％以上，使得Bi相的粒子均匀分散 在Cu合金层中。 因此，随着滑动材料的磨损进行而Cu合金层中的Bi相的颗粒依次暴露于滑动表面，同时防止熔融Bi的过量流出，从而获得改善的耐咬合性。

公开(公告)号：US4924585A

公开(公告)日：1990-05-15

申请号：US342705

申请日：1989-04-21

申请人： Takuo Imai ,  Shinji Kojima ,  Toshitane Matsukawa ,  Toshio Fujimura

发明人： Takuo Imai ,  Shinji Kojima ,  Toshitane Matsukawa ,  Toshio Fujimura

IPC分类号： B22D11/12 ,  C21D7/13

CPC分类号： B22D11/1206 ,  C21D7/13 ,  Y10T29/49988 ,  Y10T29/49991

摘要： A segregation preventive or eliminative operation in a continuous casting process is performed under the following conditions:The solidified/unsolidified ratio of the solidifying block is in a range of 0.5:1 to 0.9:1;The ratio between the overall compression .delta. (mm) versus thickness of the unsolidified area in the block (d mm) is greater than or equal to 0.5 or the thickness (d mm) of the unsolidified layer in the solidifying block is: ##EQU1## where D is the thickness of the block before compression. Casting speed may be controlled according to thickness of the solidifying shell at or near a crater end. Preferably, electromagnetic stirring is performed before performing compression forging.

摘要翻译： 在以下条件下进行连续铸造工序中的偏析防止或去除操作：固化块的固化/非固化比在0.5:1至0.9:1的范围内; 块体中非固化区域（d mm）的整体压缩增量（mm）与厚度之间的比例大于或等于0.5，或者固化块中未固化层的厚度（d mm）为： 其中D是压缩前块的厚度。 铸造速度可以根据凝固壳的厚度在或在火山口端附近进行控制。 优选地，在进行压缩锻造之前进行电磁搅拌。

公开(公告)号：US08871354B2

公开(公告)日：2014-10-28

申请号：US13033144

申请日：2011-02-23

申请人： Takuo Imai ,  Kouji Zusi ,  Kentaro Tujimoto

发明人： Takuo Imai ,  Kouji Zusi ,  Kentaro Tujimoto

IPC分类号： B22F7/04 ,  C22C9/00 ,  F16C33/12 ,  C22C32/00 ,  B32B15/01

CPC分类号： C22C9/00 ,  B22F2301/10 ,  B22F2301/35 ,  B22F2302/05 ,  B22F2302/10 ,  B22F2302/20 ,  B22F2302/45 ,  B22F2303/01 ,  B22F2303/05 ,  B22F2303/40 ,  B22F2303/405 ,  B22F2998/10 ,  B32B15/013 ,  C22C32/0047 ,  F16C33/121 ,  F16C2204/18 ,  Y10T428/12063 ,  Y10T428/12139 ,  B22F9/082 ,  C22C1/05 ,  B22F3/10 ,  B22F3/18

摘要： Provided is a copper-based sliding material including a steel back-metal layer and a Cu alloy layer. The Cu alloy layer contains, by mass %, 10 to 30% of Bi, 0.5 to 5% of an inorganic compound, and the balance being Cu and inevitable impurities. The Cu alloy layer may further contain 0.5 to 5% of Sn and/or at least one element selected from the group consisting of Ni, Fe, P and Ag in a total amount of 0.1 to 10%. The inorganic compound has an average particle size of 1 to 5 μm and a specific gravity of 70 to 130% relative to the specific gravity of Bi. Bi phase is formed in the Cu alloy layer in an average particle size of 2 to 15 μm, and the Bi phase is dispersed in the Cu alloy layer and isotropic.

摘要翻译： 提供一种铜基滑动材料，其包括钢背金属层和Cu合金层。 Cu合金层以质量％计含有10〜30％的Bi，0.5〜5％的无机化合物，余量为Cu和不可避免的杂质。 Cu合金层可以进一步含有0.5〜5％的Sn和/或至少一种选自Ni，Fe，P和Ag的元素，总量为0.1〜10％。 无机化合物的平均粒径为1〜5μm，比重为Bi比的70〜130％。 在Cu合金层中形成平均粒径为2〜15μm的Bi相，将Bi相分散在Cu合金层中，各向同性。

公开(公告)号：US20130052473A1

公开(公告)日：2013-02-28

申请号：US13572915

申请日：2012-08-13

申请人： Ryo SATO ,  Takuo Imai ,  Kentaro Tujimoto

发明人： Ryo SATO ,  Takuo Imai ,  Kentaro Tujimoto

IPC分类号： B32B15/01 ,  B32B5/16 ,  F16C33/12 ,  B32B15/20

CPC分类号： C23C30/00 ,  B22F7/04 ,  B22F9/082 ,  B32B15/015 ,  C22C1/0425 ,  C22C9/00 ,  C22C9/02 ,  F16C33/121 ,  F16C2204/18 ,  F16C2240/48 ,  F16C2240/70 ,  Y10T428/12063 ,  Y10T428/12139 ,  Y10T428/12924 ,  Y10T428/12972

摘要： In a copper-based sliding material in which a Cu alloy layer contains 5% to 30% by mass of Bi, and the balance consisting of Cu and an unavoidable impurity, Bi is dispersed as particles of a Bi phase in the Cu alloy layer, and the mass ratio of the particles having a particle size of 2 to 50 μm and a circularity of 0.1 to 0.7 is 30% or more in the entire Bi phase in the Cu alloy layer, so that the particles of the Bi phase are uniformly dispersed in the Cu alloy layer. Therefore, the particles of the Bi phase in the Cu alloy layer are sequentially exposed to a sliding surface as wear of the sliding material progresses while excessive flow-out of molten Bi is prevented, so that improved seizure resistance is achieved.

摘要翻译： 在Cu合金层含有5质量％〜30质量％的Bi的铜基滑动材料中，余量由Cu和不可避免的杂质构成，Bi作为Bi相的粒子分散在Cu合金层中， 在Cu合金层的整个Bi相中，粒径为2〜50μm，圆形度为0.1〜0.7的粒子的质量比为30％以上，Bi相的粒子均匀分散 在Cu合金层中。 因此，随着滑动材料的磨损进行而Cu合金层中的Bi相的颗粒依次暴露于滑动表面，同时防止熔融Bi的过量流出，从而获得改善的耐咬合性。

公开(公告)号：US4353533A

公开(公告)日：1982-10-12

申请号：US234919

申请日：1981-02-17

申请人： Tatsukichi Chino ,  Takuo Imai ,  Masaaki Tsukamoto ,  Ryuichi Asaho ,  Nagayasu Bessho ,  Kyoji Nakanishi

发明人： Tatsukichi Chino ,  Takuo Imai ,  Masaaki Tsukamoto ,  Ryuichi Asaho ,  Nagayasu Bessho ,  Kyoji Nakanishi

IPC分类号： A63F7/32 ,  C21C5/35 ,  C21C5/48

CPC分类号： C21C5/35 ,  C21C5/48

摘要： A tuyere for blowing an agitating gas into molten steel is arranged in the bottom of an oxygen top-blown converter in order to improve the refining effect of molten steel and has a ratio of blow sectional area S (cm.sup.2) to inner peripheral length L (cm) of not more than 0.17, preferably not more than 0.125.

摘要翻译： 为了提高钢水的精炼效果，在氧气顶吹转炉的底部配置有将搅拌气体吹入钢水的风口，并且吹出截面积S（cm 2）与内周长L（ cm）为0.17以下，优选为0.125以下。