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1. 发明专利

JP2005349534A Hot grinding method for forging material 审中-公开
标题翻译：用于锻造材料的热研磨方法
公开(公告)号：JP2005349534A
公开(公告)日：2005-12-22
申请号：JP2004173759
申请日：2004-06-11
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： MASUNAGA ATSURO , TSUCHIDA YASUKI
IPC分类号： B24B49/14 , B24B27/033 , B24B49/16
摘要： PROBLEM TO BE SOLVED: To provide a method efficiently executing grinding under the most suitable condition, when a flaw existing on a surface of a billet that is a forging material is removed by hot grinding in a process of manufacturing a metallic molded article by forging.
SOLUTION: At least three times grinding passes are carried out on one surface of the billet. First, grinding is carried out by press bonding force corresponding to a limit of press bonding force decided by billet surface temperature, and second, grinding is carried out by further lower press bonding force according to the raised billet surface temperature. After that, grinding is carried out by press bonding force gradually increased according to the billet surface temperature gradually lowering. For the last time, grinding is finished under temperature and press bonding force generally same as the billet surface temperature and the press bonding force of the first time.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供在最合适的条件下有效执行研磨的方法，当在制造金属模制品的过程中通过热研磨去除存在于作为锻造材料的钢坯的表面上的缺陷时通过锻造。
解决方案：在坯料的一个表面上进行至少三次研磨通道。首先，通过与由坯料表面温度决定的压接力的极限相对应的压接力进行研磨，其次，通过根据升高的坯料表面温度进一步降低压力来进行研磨。之后，通过按照钢坯表面温度逐渐降低的压合力逐渐进行研磨。最后一次，在温度和压力结合力的作用下，通常与坯料表面温度和第一次的压合力大致相同。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2008036698A Method for manufacturing large forged product made of austenitic stainless steel 审中-公开
标题翻译：制造奥氏体不锈钢的大型锻造产品的方法
公开(公告)号：JP2008036698A
公开(公告)日：2008-02-21
申请号：JP2006217558
申请日：2006-08-09
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： OKAJIMA TAKUMA , YOSHIDA HIROAKI , MASUNAGA ATSURO , NAKAHARA MAKOTO
IPC分类号： B21J1/06 , B21J1/04 , B21J5/00
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a large forged product made of austenitic stainless steel, capable of definitely destroying huge cast structures and preventing crystal grain growth caused by repeated forging and reheating. SOLUTION: The method for manufacturing the large forged product made of austenitic stainless steel comprises a first heating step of heating an ingot made of austenitic stainless steel to a temperature between not lower than 1,250°C and not higher than Tmp(°C), wherein Tmp(°C) is a melting point of the austenitic stainless steel, and a first forging step of forging the austenitic stainless steel in such a manner that the maximum strain (ε) per pass becomes not less than 0.2 and a forging ratio becomes not less than 2S while the fore-mentioned temperature of the austenitic stainless steel goes down to a temperature lower than a re-crystallization starting temperature (Trex(°C)). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于制造由奥氏体不锈钢制成的大型锻造产品的方法，其能够明确地破坏巨大的铸造结构并防止由于重复锻造和再加热引起的晶粒生长。解决方案：用于制造由奥氏体不锈钢制成的大型锻造产品的方法包括将由奥氏体不锈钢制成的铸锭加热至不低于1250℃且不高于Tmp（℃）的第一加热步骤），其中Tmp（℃）是奥氏体不锈钢的熔点，以及锻造奥氏体不锈钢的第一锻造步骤，使得每次通过的最大应变（ε）不小于0.2，锻造比率不小于2S，而奥氏体不锈钢的上述温度下降到低于再结晶起始温度（Trex（℃））的温度。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2013046928A Method of manufacturing exhaust valve for vessel engine 有权
标题翻译：制造船用排气阀的方法
公开(公告)号：JP2013046928A
公开(公告)日：2013-03-07
申请号：JP2012161610
申请日：2012-07-20
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： HORIO KOJI , HARA OSAMU , SUZUKI YOSHITO , MASUNAGA ATSURO
IPC分类号： B21K1/24 , B23K9/00 , B23K9/04 , B23K31/00 , B23K35/30 , C22C19/05 , C22C27/06 , C22C38/00 , C22C38/54 , F01L3/02 , F01L3/24
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an exhaust valve for a vessel engine having high durability to bear even a high load in a diesel engine of a large-scale vessel.SOLUTION: The method includes: build-up welding a welding material that consists of a Ni-Cr-Al-system Ni-base age-precipitated alloy overlaying for two or more times to cover the tip of a round steel bar material (S2); then, hot-die forging a tip to shape an umbrella part while adjusting the structure of a welding part (S3); and applying a solution heat treatment (S4) and an age-precipitation heat treatment (S5).
摘要翻译：解决的问题：提供一种制造具有高耐久性的容器发动机的排气阀的方法，以在大型船舶的柴油发动机中承受甚至高负载。解决方案：该方法包括：将由Ni-Cr-Al系Ni碱基时效沉淀合金组成的焊接材料堆叠焊接两次或更多次以覆盖圆钢棒材料的尖端（S2）; 然后在调整焊接部件的结构的同时热锻模尖以形成伞部件（S3）; 并进行固溶热处理（S4）和时效沉淀热处理（S5）。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2011153346A Method for manufacturing resin molding die 有权
标题翻译：制造树脂模具的方法
公开(公告)号：JP2011153346A
公开(公告)日：2011-08-11
申请号：JP2010015344
申请日：2010-01-27
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： JINNO YOSHINORI , MASUNAGA ATSURO
IPC分类号： C21D8/00 , B21J5/00 , C22C38/00 , C22C38/16
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a resin molding die excellent in mirror surface property, which is composed of Ni-Al-Cu based age hardening die steel and used for molding a large resin product.
SOLUTION: The method for manufacturing the resin molding die, includes: a bloom forging process in which a steel ingot is heated to a temperature T
1 and then, is bloom-forged into a billet; and a soaking process in which the billet is heated to a temperature T
2 and held, and a low-temperature finish forging process for performing forging after heating the billet to a temperature T
3 of ≤1,050°C, after the bloom forging process. Here, between the soaking process and the low-temperature finish forging process, a hot-gouging process in which the gouging is performed at a temperature T
4 of ≥500°C which is at least lower than the temperature T
3 , is further included.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种由Ni-Al-Cu系时效硬化模具钢构成的用于成型大型树脂制品的镜面性优异的树脂成型模具的制造方法。解决方案：用于制造树脂模制模具的方法包括：将钢锭加热到温度T SB> 1 的开坯锻造工艺，然后将其锻造成坯料; 以及将坯料加热到温度T 2 并保持的均热方法，以及将坯料加热至温度T SB 3之后进行锻造的低温精加工锻造工艺， SB>≤150°C，开花后锻造。这里，在均热处理和低温精加工工艺之间，进行热气流处理，其中，在≥500℃的温度T 4 下进行气泡，该温度至少低于温度T 3 。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2015054332A Ｎｉ基耐熱合金の鍛造加工方法有权
标题翻译：镍基耐热合金的锻造方法
公开(公告)号：JP2015054332A
公开(公告)日：2015-03-23
申请号：JP2013187763
申请日：2013-09-10
申请人：大同特殊鋼株式会社 , Daido Steel Co Ltd
发明人： SAKURAI SHINGO , OSAKI MOTOTSUGU , MASUNAGA ATSURO , YAMASHITA KENTA
IPC分类号： B21J5/00 , B21J1/04 , C22C19/05 , C22F1/10
摘要：【課題】Ni基耐熱合金から成る直径200mm超の太径の円柱状の鍛造品を加工形成することができ、且つ中心部に到るまで結晶を微細化することのできる鍛造加工方法を提供する。【解決手段】Ni基耐熱合金から成る被処理材に対して、前加工としての粗鍛造加工と、仕上げ鍛造加工とを行う。粗鍛造加工では、被処理材に対し圧下率20%以上の据込と、鍛伸とを2回以上繰り返し行うとともに、終盤工程を結晶粒の粒度調整工程として、粒度調整工程以前の据込及び鍛伸を1030〜1150℃の温度で、また終盤の粒度調整工程では据込及び鍛伸を1030〜1080℃の低温度で行って、粗鍛造加工後の被処理材の中心部の組織を鍛造品に求められる設定結晶粒度以上の結晶粒度の細粒組織とする。【選択図】なし
摘要翻译：要解决的问题：为了提供一种锻造方法，其中可以锻造形成包括Ni基耐热合金的直径大于200mm的直径的圆柱形锻造产品，并且可以将晶体小型化直到达到中心。解决方案：锻造方法的特征在于，对包含Ni基耐热合金的工件进行锻造和精锻。在粗锻中，以20％以上的压下率进行镦锻和齿槽重复进行两次以上的加工。此外，在末端工序中，晶粒细化工序之前的镦锻和齿槽作为晶粒的晶粒细化工序在1030〜1150℃的温度下进行，镦锻和齿槽化在1030℃的低温下进行 -1080℃，晶粒细化步骤结束。由此，粗锻后的工件的中心部分的结构形成为具有锻造产品所要求的凝固晶粒尺寸的晶粒尺寸的微细结构。

6. 发明专利

JP2008200730A METHOD FOR MANUFACTURING Ni-BASED HEAT-RESISTANT ALLOY 审中-公开
标题翻译：镍基耐热合金的制造方法
公开(公告)号：JP2008200730A
公开(公告)日：2008-09-04
申请号：JP2007041512
申请日：2007-02-21
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： HATTA TAKESHI , YOSHIDA HIROAKI , MASUNAGA ATSURO
IPC分类号： B21J5/00 , B21J5/06 , B21J5/08 , C22F1/00 , C22F1/10 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a Ni-based heat-resistant alloy, capable of obtaining a structure having more uniform fine grains compared with those obtained by conventional techniques even when imparting the same amount of strain.
SOLUTION: The method for manufacturing the Ni-based heat-resistant alloy includes: a heating step of heating the Ni-based heat-resistant alloy to a temperature of ≥940°C and ≤1,000°C; and a working step of striking it two times or more at the same portion in such a manner that a rolling reduction rate per one strike becomes ≥7%, before the temperature of the Ni-based heat-resistant alloy becomes below the re-crystallization starting temperature, wherein the rolling reduction rate is expressed by the formula: (l
0 -l)/l
0 , where l
0 is a height of the material before working, and l is a height of the material after working.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种Ni基耐热合金的制造方法，即使赋予相同量的应变，也能够获得与通过常规技术获得的细颗粒相比具有更均匀的细晶粒的结构。解决方案：制造Ni基耐热合金的方法包括：将Ni基耐热合金加热至≥940℃和≤1,000℃的加热步骤; 并且在Ni基耐热合金的温度变得低于再结晶之前，以相同的每次冲击的压下率变为≥7％的方式在同一部分进行两次或更多次的冲击的工作步骤起始温度，其中轧制压下率由以下公式表示：其中l 0 是加工前材料的高度，l是加工后材料的高度。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2005009759A Sealing mechanism for heating furnace 审中-公开
标题翻译：用于加热炉的密封机构
公开(公告)号：JP2005009759A
公开(公告)日：2005-01-13
申请号：JP2003173860
申请日：2003-06-18
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： MASUNAGA ATSURO , TSUCHIDA YASUKI
IPC分类号： C21D1/74 , F27B9/26 , F27D3/12 , F27D7/06
摘要： PROBLEM TO BE SOLVED: To provide a sealing mechanism with easy maintenance preventing deterioration of sealing performance due to accumulation of scales and positively maintaining high sealing performance by improving a sealing mechanism for a heating furnace of a type sending a carrier loaded with an object to be heated in and out from a furnace body provided with a burner.
SOLUTION: Side sealing plates 4 and a rear sealing plate extending obliquely downward are provided in both sides and the rear of the carrier, namely, in a far wall side of the furnace body, and side sandbags 5 and a rear sandbag filled with sand in bags made of refractory material are suspended so that sealing is secured between upper rims of the sandbags and walls of the furnace body. A pusher 6 is provided in a furnace body side wall, and sealing is carried out by pushing the side sandbag from the outside toward the side sealing plate, and bringing it into close contact with a rim of the side sealing plate.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种容易维护的密封机构，防止由于秤的堆积导致的密封性能的劣化，并且通过改进用于装载载体的载体的加热炉的密封机构，从而保持高的密封性能被加热入炉子内的物体。
解决方案：侧密封板4和向后倾斜延伸的后密封板设置在载体的两侧和后部，即炉体的远壁侧，并且侧沙袋5和后沙袋填充由耐火材料制成的袋子中的沙子被悬挂，使得密封被固定在沙袋的上边缘和炉体的壁之间。在炉体侧壁上设置有推动器6，通过将侧袋从外侧推向侧密封板，并使其与侧密封板的边缘紧密接触来进行密封。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2003287223A Temperature control method for thermal accumulator of thermal accumulating combustion device 审中-公开
标题翻译：热累积燃烧装置热蓄热器的温度控制方法
公开(公告)号：JP2003287223A
公开(公告)日：2003-10-10
申请号：JP2002092818
申请日：2002-03-28
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： MASUNAGA ATSURO
IPC分类号： F23N5/02 , F23L11/00 , F23L15/02 , F23L17/16
CPC分类号： Y02E20/348
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling the temperature of the thermal accumulator of a thermal accumulating combustion device so that a temperature in the thermal accumulator can be maintained above the dew point of SO
2 , namely, at 160°C or higher and a waste heat recovery rate can be increased.
SOLUTION: In this temperature control method for the thermal accumulator of the thermal accumulating combustion device 1, exhaust gas is sucked and discharged by a blower 20 after the exhaust gas is led into the thermal accumulator 3 for heating a thermal accumulating body 7. An open/close valve is controllably regulated so as to more increase the amount of the exhaust gas flowing in the thermal accumulator as the temperature measured with a thermometer 16, i.e., a temperature at the outlet of the thermal accumulator is lower and more decrease the amount of the exhaust gas as the temperature is higher.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于控制蓄热燃烧装置的蓄热器的温度的方法，使得蓄热器中的温度可以保持在高于SO 2 SB <2的露点 > 160℃以上，废热回收率提高。解决方案：在该蓄热燃烧装置1的蓄热器的这种温度控制方法中，在排气被引入用于加热蓄热体7的蓄热器3之后，通过鼓风机20将废气排出开/关阀被可控制地调节，以便随着用温度计16测量的温度，即，蓄热器出口处的温度较低并且更多的降低，更多地增加在蓄热器中流动的排气量当温度较高时废气的量。版权所有（C）2004，JPO

9. 发明专利

JP2003230939A ROTATIONAL ANGLE CONTROL METHOD FOR TURNTABLE OF DISK TURNER FOR FORGING PRESS 审中-公开
公开(公告)号：JP2003230939A
公开(公告)日：2003-08-19
申请号：JP2002034975
申请日：2002-02-13
申请人： DAIDO STEEL CO LTD
发明人： MASUNAGA ATSURO
IPC分类号： F15B11/00 , B21K27/00
摘要： PROBLEM TO BE SOLVED: To provide a rotational angle control method for a turntable of a disk turner for forging press capable of setting the higher stopping accuracy of the turntable at a minimal angle even if the temperature and pressure of operating oil varies and also any operating condition such as a live load (i.e., weight of a forging object), etc., varies. SOLUTION: In the rotational angle control method for the turntable 4 of the disk turner for forging press 2, a hydraulic motor 7 rotating the turntable 4 on a platform 3, a hydraulic pump 8 supplying the hydraulic motor 7 with the operating oil, and an electric motor 9 actuating the hydraulic pump 8 are used to control the rotational angle of the turntable. The hydraulic motor 7 is directly connected with the hydraulic pump 8 to control the speed of the electric motor 9 actuating the hydraulic pump 8, as well as an encoder for rotational angle detection provided on the hydraulic motor 7, etc., detects the rotational angle of the turntable 4 to feedback the detected result and control the rotational angle of the turntable to be a specified set value. COPYRIGHT: (C)2003,JPO

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