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1. 发明授权

US06511558B1 Method for producing vehicle wheels 失效
标题翻译：车轮制作方法
公开(公告)号：US06511558B1
公开(公告)日：2003-01-28
申请号：US09719669
申请日：2000-12-14
申请人： Farid Zainullaevich Utyashev , Oscar Akramovich Kaibyshev , Vadim Gennadievich Trifonov
发明人： Farid Zainullaevich Utyashev , Oscar Akramovich Kaibyshev , Vadim Gennadievich Trifonov
IPC分类号： C21D713
CPC分类号： B21D53/264 , B21D22/16 , B21D53/30 , B21H1/10 , C22F1/04 , C22F1/183 , Y10T29/49492 , Y10T29/49991
摘要： A metal forming method is used for manufacturing vehicle wheels. The invention comprises manufacturing of a wheel block comprising a central part and initially formed rim; drawing of the rim by hot rolling to obtain a wheel profile that approximates a finished wheel, and a final wheel treatment process. The rolling is conducted from either side of the wheel block, which may comprise any granular microstructure. Rolling temperature-strain rate conditions correspond to the microstructure. For a coarse-grain microstructure, the rim includes a shoulder with a thickness greater than that of the finished wheel, and thickness differences transform the microstructure into a recrystallized and/or polygonized microstructure. For a fine-grain microstructure, the rim includes a shoulder or flange with a thickness close to a thickness of a finished wheel. For mixed microstructures, the rim includes a shoulder and has a thickness greater or equal to a finished wheel.
摘要翻译：金属成型方法用于制造车轮。本发明包括制造包括中心部分和初始形成的轮辋的轮辋; 通过热轧来绘制轮辋以获得近似成品车轮的车轮轮廓和最终车轮处理过程。轧制从轮块的任一侧进行，其可以包括任何颗粒微结构。轧制温度 - 应变速率条件对应于微结构。对于粗晶粒微观结构，边缘包括具有大于成品轮的厚度的肩部，并且厚度差异将微结构转变成再结晶和/或多边形微结构。对于细晶粒微结构，边缘包括具有接近成品轮的厚度的厚度的肩部或凸缘。对于混合微结构，边缘包括肩部并且具有大于或等于成品轮的厚度。

2. 发明授权

US06508893B2 Method of manufacturing Fe-Ni alloy 失效
标题翻译：制备Fe-Ni合金的方法
公开(公告)号：US06508893B2
公开(公告)日：2003-01-21
申请号：US09942482
申请日：2001-08-30
申请人： Masatoshi Eto
发明人： Masatoshi Eto
IPC分类号： C21D713
CPC分类号： C21D8/0205 , B21B1/26 , B21B3/02 , C21D8/0226
摘要： A method of manufacturing an improved Fe—Ni alloy consisting of 33-37% Ni; 0.001-0.1% Mn; optionally, 0.01-2% Co; and at least one of (1) 0.01-0.8% Nb; (2) 0.01-0.8% Ta; and/or (3) 0.01-0.8% Hf, with the total of Nb, Ta and Hf being in the range of 0.01-0.8% and the remainder being Fe and unavoidable impurities. The method comprises subjecting the alloy to a hot rolling process wherein the rate of distortion during each pass of hot rolling is below 70/second resulting in the alloy having a reduced rate of crack formation during the hot rolling process, and high drop-shock resistance and low thermal expansion after the hot rolling process.
摘要翻译：一种由33-37％Ni构成的改进的Fe-Ni合金的制造方法; 0.001-0.1％Mn; 任选地，0.01-2％Co; 和（1）0.01-0.8％Nb中的至少一种; （2）0.01-0.8％Ta; 和/或（3）0.01-0.8％Hf，其中Nb，Ta和Hf的总量在0.01-0.8％的范围内，余量为Fe和不可避免的杂质。该方法包括对合金进行热轧过程，其中每次热轧过程中的变形率低于70 /秒，导致合金在热轧过程中裂纹形成速率降低，并且具有高的耐跌落冲击性热轧后的热膨胀率低。

3. 发明授权

US06440235B1 Method of manufacturing high productive and high strength rolled H-shaped 失效
标题翻译：制造高产高强度轧制H型的方法
公开(公告)号：US06440235B1
公开(公告)日：2002-08-27
申请号：US09641346
申请日：2000-08-18
申请人： Tatsumi Kimura , Fumimaru Kawabata , Keniti Amano
发明人： Tatsumi Kimura , Fumimaru Kawabata , Keniti Amano
IPC分类号： C21D713
CPC分类号： C22C38/14 , C21D8/00 , C21D2211/002 , C22C38/04 , C22C38/12
摘要： Rolled H-shapes having high strength and high toughness, and which can be produced using cheaper alloy components than conventional products and which can be manufactured with a high productivity, are disclosed. A method for manufacturing the H-shapes is also disclosed. The rolled H-shapes include 0.03 to 0.1 wt. % of Nb and 0.005 to 0.04 wt. % of Ti. The method includes a rough universal rolling process in which an accumulated reduction at a rolling temperature of 950° C. or lower is 5% or larger, and reverse operation is conducted fast; and a finishing universal rolling, in which the rolling temperature is 750° C. or higher. Preferably, in the rough universal rolling, the accumulated reduction at a rolling temperature of 950° C. or lower is 50% or more.
摘要翻译：公开了具有高强度和高韧性的轧制H形，并且可以使用比常规产品更便宜的合金成分制造并且可以以高生产率制造。还公开了一种用于制造H形的方法。轧制的H形包括0.03〜0.1重量％ Nb的含量为0.005〜0.04wt。％的Ti。该方法包括粗轧万能轧制方法，其中在950℃或更低的轧制温度下的累积压下率为5％或更大，并且快速进行反向操作; 以及轧制温度为750℃以上的精轧万能轧制。优选地，在粗通用轧制中，轧制温度为950℃以下的累积压下率为50％以上。

4. 发明授权

US06773522B1 Process and device for producing a high-strength steel strip 失效
标题翻译：用于生产高强度钢带的方法和装置
公开(公告)号：US06773522B1
公开(公告)日：2004-08-10
申请号：US09555402
申请日：2000-08-14
申请人： André Bodin , Thomas Martinus Hoogendoorn
发明人： André Bodin , Thomas Martinus Hoogendoorn
IPC分类号： C21D713
CPC分类号： B21B1/46 , B21B1/26 , B21B2201/02 , B21B2201/04 , B21B2201/16 , C21D1/185 , C21D8/021 , C21D8/0226 , C21D2211/002 , C21D2211/008
摘要： A process and device for producing a high-strength steel strip. In the process, liquid steel is cast in at least one continuous-casting machine (1) with one or more strands to form a slab and, utilizing the casting heat, is conveyed through a furnace device (7). The slab undergoes preliminary rolling in a preliminary rolling device (10) and, in a final rolling device (14), is finishing-rolled to form a steel strip with the desired final thickness. In a continuous, endless or semi-endless process, the slab undergoes preliminary rolling in, essentially, the austenitic range in the preliminary rolling device (10) and, in the final rolling device (14), is rolled in the austenitic range or, in at lest one stand of the final rolling device (14), is rolled in the two-phase austenitic-ferritic range, the austenitic or austenitic, ferritic rolled strip. After leaving the final rolling device (14), the strip is cooled rapidly to obtain the desired structure.
摘要翻译：一种用于生产高强度钢带的方法和装置。在此过程中，液态钢用至少一根连续铸造机（1）铸成一根或多股，形成板坯，利用铸造热量将其输送通过炉装置（7）。板坯在预轧装置（10）中进行预轧，并且在最终轧制装置（14）中进行精轧，以形成具有所需最终厚度的钢带。在连续，无限或半循环的过程中，板坯基本上在预轧部件（10）中的奥氏体范围内进行初轧，并且在最终轧制装置（14）中，在奥氏体范围内轧制，在最终轧制装置（14）的至少一个立场中，在奥氏体或奥氏体铁素体轧制带的两相奥氏体 - 铁素体范围内轧制。在离开最终轧制装置（14）之后，快速冷却钢带以获得所需的结构。

5. 发明授权

US06331216B1 Steel pipe having high ductility and high strength and process for production thereof 有权
标题翻译：具有高延展性和高强度的钢管及其生产方法
公开(公告)号：US06331216B1
公开(公告)日：2001-12-18
申请号：US09214226
申请日：1998-12-30
申请人： Takaaki Toyooka , Akira Yorifuji , Masanori Nishimori , Motoaki Itadani , Yuji Hashimoto , Takatoshi Okabe , Nobuki Tanaka , Taro Kanayama , Osamu Furukimi , Masahiko Morita , Takaaki Hira , Saiji Matsuoka
发明人： Takaaki Toyooka , Akira Yorifuji , Masanori Nishimori , Motoaki Itadani , Yuji Hashimoto , Takatoshi Okabe , Nobuki Tanaka , Taro Kanayama , Osamu Furukimi , Masahiko Morita , Takaaki Hira , Saiji Matsuoka
IPC分类号： C21D713
CPC分类号： C21D8/10 , C21D2201/00 , C21D2211/005
摘要： The steel pipe has a structure composed mainly of ferrite or ferrite plus pearlite or ferrite plus cementite. The steel pipe is characterized by grain size not greater than 3 &mgr;m, preferably not greater than 1 &mgr;m, elongation greater than 20%, tensile strength (TS:MPa) and elongation (E1:%) whose product is greater than 10000, and percent ductile fracture greater than 95%, preferably 100%, measured by Charpy impact test on an actual pipe at −100° C. The structure is characterized by C: 0.005-0.03%, Si: 0.01-3.0%, Mn: 0.01-2.0%, and Al: 0.001-0.10% on a weight basis, and is composed of ferrite or ferrite and a secondary phase, with ferrite grains being not greater than 3 &mgr;m and the secondary phase having an areal ratio not more than 30%. A steel pipe stock having the above-mentioned composition is heated at a temperature of (Ac1+50° C.) to 400° C. and subsequently reduced at a rolling temperature of (Ac1+50° C.) to 400° C. such that the cumulative reduction of diameter is greater than 20%. The reducing is preferably performed such that at least one of rolling passes reduces the diameter by more than 6% per pass. The steel pipe will have high ductility and high strength and will be superior in toughness and stress corrosion cracking resistance, if the content of C, Si, Mn, and other alloying elements is limited low and reducing is performed at the temperature specified above. The resulting steel pipe has good fatigue resistance and is suitable for use as line pipe.
摘要翻译：钢管具有主要由铁素体或铁素体加珠光体或铁素体和渗碳体组成的结构。钢管的特征在于，其粒径不大于3μm，优选不大于1μm，伸长率大于20％，拉伸强度（TS：MPa）和伸长率（E1：％）大于10000，延性断裂大于95％，优选100％，通过夏比冲击试验在-100℃的实际管上测量。该结构的特征在于C：0.005-0.03％，Si：0.01-3.0％，Mn：0.01-2.0 ％，Al：0.001-0.10％，由铁素体或铁素体和二次相组成，铁素体晶粒不大于3μm，第二相的面积比不大于30％。将具有上述组成的钢管坯料在（Ac1 + 50℃）的温度下加热至400℃，随后在（Ac1 + 50℃）的轧制温度下降低至400℃。使得直径的累积减小大于20％。优选地进行还原，使得至少一个轧制通道将直径每次通过减少6％以上。如果C，Si，Mn和其他合金元素的含量低，并且在上述规定的温度下进行还原，则钢管将具有高延展性和高强度，并且在韧性和耐应力腐蚀开裂性方面优异。所得钢管具有良好的抗疲劳性能，适用于管线管。

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