专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09394581B2 Heat treatment method for bainitic turnout rail 有权
标题翻译：贝氏体导轨的热处理方法
公开(公告)号：US09394581B2
公开(公告)日：2016-07-19
申请号：US13974744
申请日：2013-08-23
申请人： PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD.
发明人： Zhenyu Han , Ming Zou , Jihai Jia , Hua Guo , Yanzhong Wang , Jianhua Liu , Yong Deng , Chunjian Wang
IPC分类号： C21D9/04
CPC分类号： C21D9/04 , C21D2211/002
摘要： The present disclosure discloses a heat treatment method for a bainitic turnout rail, which includes: naturally cooling the turnout rail at a temperature in an austenite region after being finishing rolled to 450-480° C. at a tread center of a rail head of the turnout rail; accelerated cooling the naturally cooled turnout rail to 230-270° C. at the tread center of the rail head, a cooling rate at the tread center and a non-working side of the rail head being 1.5-5.0° C./s, a cooling rate at the working side of the rail head increasing by 0.1-1.0° C./s based on 1.5-5.0° C./s; continuously accelerated cooling the working side, the tread center and the non-working side of the rail head at a cooling rate of 0.05-0.25° C./s to decrease a temperature of the tread center of the rail head to 265-270° C.; and finally, naturally cooling the turnout rail to an ambient temperature.
摘要翻译：本发明公开了一种用于贝氏体轨道轨道的热处理方法，其包括：在所述轨道头的轨道头的胎面中心完成轧制后的奥氏体区域的温度下自然冷却所述轨道轨道道岔铁路在轨头的胎面中心将自然冷却的道岔轨道加速冷却至230-270℃，胎面中心处的冷却速度和轨头的非工作侧为1.5-5.0℃/ 轨头工作侧的冷却速度以1.5-5.0℃/ s的速度增加0.1-1.0℃/秒; 以0.05-0.25℃/ s的冷却速度连续加速冷却轨头的工作侧，胎面中心和非工作侧，将轨头的胎面中心的温度降低到265-270° C。; 最后自然地将道岔轨道冷却到环境温度。

2. 发明授权

US09115412B2 Method of manufacturing direct reduction iron and reduction firing apparatus 有权
标题翻译：制造直接还原铁和还原烧制装置的方法
公开(公告)号：US09115412B2
公开(公告)日：2015-08-25
申请号：US13909763
申请日：2013-06-04
申请人： PANGANG GROUP COMPANY LTD. , PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD.
发明人： Jinlong Zhan
IPC分类号： C21B13/00 , C21B13/10 , F27B9/20 , F27B9/26 , F27B9/38 , F27B9/39 , C21B13/14 , F27D3/06
CPC分类号： C21B13/00 , C21B13/10 , C21B13/146 , F27B9/20 , F27B9/26 , F27B9/38 , F27B9/39 , F27D3/06
摘要： A method of manufacturing direct reduction iron and a reduction firing apparatus. The apparatus has a reduction furnace including a left chamber, a right chamber, a material containing device, a step mechanism, a slag distributing device, a charging device, heating burners, a fume extraction path, a charging device, a material receiving tank and a slag discharging path. The method includes the following steps: distributing and charging the slag in the material containing device; carrying and sending the material containing device through a preheating station, a heating station and a reduction station sequentially. Meanwhile, heating the material to be reduced by a combustion of fuel with the heating burners; discharging the reduced material into the material receiving tank; placing the material device from which the material is discharged into the feeding side of the other chamber, then a next work circulation begins.
摘要翻译：制造直接还原铁的方法和还原烧制装置。该装置具有还原炉，其包括左室，右室，含材料装置，台阶机构，炉渣分配装置，充气装置，加热燃烧器，烟气抽出路径，充电装置，材料容纳罐和炉渣排放路径。该方法包括以下步骤：在材料容纳装置中分配和充填炉渣; 通过预热站，加热站和还原站依次运送和发送材料容纳装置。同时，用加热燃烧器加热燃料燃烧而减少的材料; 将还原材料排放到材料容纳罐中; 将材料从其排出的材料装置放入另一个室的进料侧，然后开始下一个工作循环。

3. 发明申请

US20120052312A1 PREPARATION METHOD OF HOT DIP GALVANIZED SHEET ANTI-CORROSIVE TREATMENT AGENT OF ENVIRONMENTAL PROTECTIVE 有权
标题翻译：热镀锌板的制备方法环境保护的抗腐蚀剂
公开(公告)号：US20120052312A1
公开(公告)日：2012-03-01
申请号：US13002302
申请日：2009-11-26
申请人： Zhefeng Xu , Dongsheng Mei , Taixiong Guo , Quan Xu , Yong Chen , Xingde Cheng , Guoan Li , Aiping Zhang
发明人： Zhefeng Xu , Dongsheng Mei , Taixiong Guo , Quan Xu , Yong Chen , Xingde Cheng , Guoan Li , Aiping Zhang
IPC分类号： B32B15/04 , C08K3/36 , C09D5/08 , B82Y30/00
CPC分类号： C23C22/23 , C08K3/36 , C09D5/08 , C09D5/18 , C09D7/61 , C09D7/67 , C23C22/17 , C23C22/36 , C23C2222/20
摘要： A coating composition is provided, the starting materials of which comprise nano SiO2, film-forming substance, film-forming aid, accelerator, acid, and water. The composition has pH of 3-9. A passivated zinc-plated material is also provided. The zinc-plated material comprises zinc-plated substrate and passivated coat adhered to the surface of the zinc-plated substrate, wherein the passivated coat is formed by curing the coating composition. The coating composition can impart to the zinc-plated material excellent corrosion resistance, water resistance, high temperature resistance, surface conductivity, and adhesion to the zinc-plated substrate. Additionally, the coating composition contains no Cr6+, and satisfies the requirement of EU RoHS Directive.
摘要翻译：提供了一种涂料组合物，其原料包括纳米SiO2，成膜物质，成膜助剂，促进剂，酸和水。该组合物的pH值为3-9。还提供钝化镀锌材料。镀锌材料包括镀锌基板和附着在镀锌基板表面上的钝化涂层，其中通过固化涂层组合物形成钝化涂层。涂料组合物可以赋予镀锌材料优异的耐腐蚀性，耐水性，耐高温性，表面导电性和与镀锌基材的粘附性。此外，涂料组合物不含Cr6 +，并且满足欧盟RoHS指令的要求。

4. 发明公开

US20240068063A1 MODERATE-STRENGTH STEEL RAIL AND PRODUCTION METHOD THEREOF 审中-公开
公开(公告)号：US20240068063A1
公开(公告)日：2024-02-29
申请号：US17996603
申请日：2022-06-30
申请人： PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD.
发明人： Jun YUAN , Yong DENG , Chongmu CHEN , Yuan WANG
IPC分类号： C21D9/04 , B21B1/085 , C21D1/18 , C21D6/00 , C21D8/00 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/18 , E01B5/02
CPC分类号： C21D9/04 , B21B1/085 , C21D1/18 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/005 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/18 , E01B5/02 , C21D2221/00
摘要： A moderate-strength steel rail is provided. The chemical composition of the moderate-strength steel rail in weight percentages includes carbon 0.70-0.90 wt %, silicon 0.08-0.65 wt %, manganese 0.69-1.31 wt %, chromium 0.10-0.25 wt %, phosphorus ≤0.020 wt %, sulfur ≤0.020 wt %, and iron 96.85-98.41 wt %. According to a production method for the moderate-strength steel rail of the present invention, the moderate-strength steel rail produced has a rail hardness of 350-370 HB, a wear amount of ≤0.40 g, a contact fatigue life of ≥50,000 times, and a 610 mm steel rail waist opening ≤3.0 mm/400 mm.

5. 发明授权

US11866801B2 Method for optimizing microstructure of rail welded joint 有权
公开(公告)号：US11866801B2
公开(公告)日：2024-01-09
申请号：US17477073
申请日：2021-09-16
申请人： PanGang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
发明人： Xin Lu , Dadong Li , Wei Bai , Feixiang Xu
IPC分类号： C21D9/50 , C21D8/00 , C21D9/04
CPC分类号： C21D9/505 , C21D8/005 , C21D9/04 , C21D2211/003 , C21D2211/009
摘要： The present disclosure relates to the technical field of rails welding, and particularly to a method for optimizing microstructure of a rail welded joint, the method comprises the following steps: step 1): subjecting a rail web area of a to-be-cooled welded joint which is obtained by flash butt welding to an accelerated cooling by means of an accelerated cooling device and by using compressed air as a cooling medium, measuring and monitoring temperature of a central position of the rail web of the welded joint while cooling; step 2): stopping the accelerated cooling when the temperature of the central position of the rail web drops to a preset temperature, then placing the welded joint in air and naturally cooling to room temperature, wherein the rail is a pearlite rail having a carbon content of 0.6-0.9 wt %.

6. 发明授权

US11655514B2 Deeply-hardened-surface turnout rail with high degree of undercooling and the preparation method thereof 有权
公开(公告)号：US11655514B2
公开(公告)日：2023-05-23
申请号：US17509375
申请日：2021-10-25
申请人： PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD.
发明人： Jun Yuan , Ming Zou , Yong Deng , Ruoxi Li
IPC分类号： C21D9/04 , C22C38/24 , C22C38/04 , C22C38/02 , C22C38/00 , C21D8/00 , C21D6/00
CPC分类号： C21D9/04 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/005 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/24 , C21D2211/001
摘要： The invention relates to a turnout rail production technology, in particular to a deeply-hardened-surface turnout rail with high degree of undercooling and the preparation method thereof. The invention aims to solve the technical problem by providing a deeply-hardened-surface turnout rail with high degree of undercooling featured in even hardness distribution and a deeply hardened surface layer and the preparation method thereof. The method is described as follows: feeding molten iron for converter smelting→furnace rear argon blowing station→LF refining→RH vacuumization→casting steel blanks→slow cooling in the slow cooling pit→austenitic homogenization→rail rolling→heat treatment; in the converter smelting process, adding 0.2-0.3% Cr, 0.04-0.06 V and 0.75-0.80% C; the heat treatment process is divided into two cooling stages. The turnout rail prepared with the method described in the invention has a deeper deeply-hardened surface layer; the hardness is distributed more evenly, the anti-contact fatigue performance is higher and the resistance to wearing is ideal.

7. 发明申请

US20220064746A1 POST-WELD HEAT TREATMENT METHOD FOR 1,300 MPa-LEVEL LOW-ALLOY HEAT TREATED STEEL RAIL 有权
公开(公告)号：US20220064746A1
公开(公告)日：2022-03-03
申请号：US17407512
申请日：2021-08-20
申请人： PanGang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
发明人： Wei BAI , Dadong LI , Ruoyu WANG , Jian DENG
IPC分类号： C21D9/04 , B23K35/30
摘要： The present disclosure relates to the manufacturing of railway steel rail, and a post-weld heat treatment method for 1,300 MPa-level low-alloy heat-treated steel rail. The method comprises: (1) subjecting a steel rail welded joint having a residual temperature of 900-1,100° C. to a first stage cooling to lower the welded joint surface temperature to 650-720° C.; (2) subjecting the steel rail welded joint to a second stage cooling to lower the welded joint surface temperature to 480-550° C.; (3) subjecting the steel rail welded joint to a third stage cooling to lower the welded joint surface temperature to 10-30° C. The heat treatment takes advantage of the welding waste heat and does not require a reheating. The martensitic structure in the metallographic structure of the steel rail welded joint can be controlled to ≤1% and the fatigue life can reach 3 million times, which is conducive to operation safety of the railway.

8. 发明申请

US20160060736A1 PEARLITIC STEEL RAIL WITH HIGH STRENGTH AND TOUGHNESS AND PRODUCING METHOD THEREOF 审中-公开
标题翻译：具有高强度和韧性的PEARLITIC钢铁轨及其生产方法
公开(公告)号：US20160060736A1
公开(公告)日：2016-03-03
申请号：US14813209
申请日：2015-07-30
申请人： PanGang Group Panzhihua Iron & Steel Research Institute Co., Ltd. , Pangang Group Panzhihua Steel & Vanadium Co., Ltd.
发明人： Zhenyu HAN , Ming ZOU , Gongming TAO , Hua GUO , Dadong LI , Yong DENG
IPC分类号： C22C38/14 , C21D9/04 , C22C38/02 , C22C38/12 , C22C38/04 , C21D8/00 , C21D6/00
CPC分类号： C22C38/14 , C21D1/19 , C21D1/84 , C21D6/005 , C21D6/008 , C21D8/005 , C21D9/04 , C21D2211/009 , C22C38/02 , C22C38/04 , C22C38/12
摘要： A pearlitic steel rail with high strength and toughness and a producing method thereof. The producing method comprises: controlling the following processing conditions in a rolling procedure to produce the pearlitic steel rail with high strength and toughness: initial rolling temperature of 1,120-1,180° C., final rolling temperature of 840-880° C., rail profile reduction in last two rolling passes of 6%-12%; the steel rail is cooled to 600° C. or lower at a cooling rate ≦2.0° C./s after final rolling, and then air-cooled to room temperature; the chemical composition of the steel rail meets the following requirements: C: 0.75%-0.84%, Si: 0.30%-0.80%, Mn: 0.50%-1.50%, V: 0.04%-0.12%, Ti: 0.004%-0.02%, and 0.10%≦V+10Ti≦0.25%, [N]≦30 ppm, P≦0.020%, S≦0.008%, with the remaining content consisting of Fe and inevitable impurities.
摘要翻译：具有高强度和韧性的珠光体钢轨及其制造方法。该制造方法包括：在轧制过程中控制以下处理条件，以生产具有高强度和韧性的珠光体钢轨：初始轧制温度为1120-1,180℃，最终轧制温度为840-880℃，轨道剖面最后两次滚动通行减少6％-12％; 钢轨以最终轧制后的冷却速度＆lt;冷却至600℃或更低，2.0℃/ s，然后空气冷却至室温; 钢轨的化学成分满足以下要求：C：0.75％-0.84％，Si：0.30％-0.80％，Mn：0.50％-1.50％，V：0.04％-0.12％，Ti：0.004％-0.02 ％和0.10％＆amp; NlE; V + 10Ti＆nlE; 0.25％，[N]和nlE; 30ppm，P＆NlE; 0.020％，S＆amp; NE; 0.008％，其余含量由Fe和不可避免的杂质组成。

9. 发明申请

US20130078456A1 METAL PROTECTION COATING, HOT-DIP ZN METALLIC MATERIAL AND HOT-DIP AL-ZN METALLIC MATERIAL USING THE SAME 有权
标题翻译：金属保护涂层，热镀锌ZN金属材料和热镀铝合金材料
公开(公告)号：US20130078456A1
公开(公告)日：2013-03-28
申请号：US13619002
申请日：2012-09-14
申请人： Zhefeng Xu , Dongsheng Mei , Yong Chen , Quan Xu , Yan Lou , Yilin Zhou
发明人： Zhefeng Xu , Dongsheng Mei , Yong Chen , Quan Xu , Yan Lou , Yilin Zhou
IPC分类号： C09D133/04 , B32B33/00 , C09D175/04 , B32B15/08 , C08K3/34 , C09D133/08
CPC分类号： C09D101/28 , B05D5/00 , B05D2202/10 , B05D2350/65 , C09D5/084 , C09D5/1618 , C09D5/1675 , C09D7/61 , C09D7/65 , C09D7/67 , C09D101/284 , C09D101/286 , C09D127/12 , C09D167/00 , C23C2/06 , C23C2/12 , C23C2/26 , C23C2/28 , C23C26/00 , Y10T428/265 , C08K3/36 , C08K5/5435 , C08L1/26 , C08K5/54 , C08L1/08
摘要： A metal protective coating is provided, which is obtained by mixing homogeneously a raw mixture, which contains water soluble silicate, promoter, silane coupling agent, silicon oxide packing, water soluble film formation resin, and water; wherein, the promoter is at least one selected from the group consisting of methyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, carboxymethyl-hydroxyethyl cellulose, and their soluble salts; the silane coupling agent contains a first silane derivative shown in formula (1), wherein, R1, R2, and R3 are methoxyl or ethyoxyl respectively, and n is an integer with the range of 1-4. A hot-dip Zn metallic material and a hot-dip Al—Zn alloy metallic material are further provided. The protective film formed by the metal protective coating as provided has outstanding corrosion resistance, water resistance, thermal resistance, and fingerprint resistance properties.
摘要翻译：提供金属保护涂层，其通过均匀混合含有水溶性硅酸盐，促进剂，硅烷偶联剂，氧化硅填料，水溶性成膜树脂和水的原料混合物获得; 其中，助催化剂是选自甲基纤维素，羧甲基纤维素，羧乙基纤维素，羧甲基羟乙基纤维素及其可溶性盐中的至少一种; 硅烷偶联剂含有式（1）所示的第一硅烷衍生物，其中，R1，R2和R3分别是甲氧基或乙氧基，n是1-4的整数。还提供热浸锌金属材料和热浸Al-Zn合金金属材料。由金属保护涂层形成的保护膜具有优异的耐腐蚀性，耐水性，耐热性和耐指纹性。

10. 发明公开

US20240279784A1 METHOD FOR PRODUCING HYPEREUTECTOID STEEL RAIL RESISTANT TO CONTACT FATIGUE 审中-公开
公开(公告)号：US20240279784A1
公开(公告)日：2024-08-22
申请号：US17919897
申请日：2022-06-30
申请人： PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD.
发明人： Jun YUAN , Ming ZOU , Yong DENG , Dawei YANG
IPC分类号： C22C38/24 , C21C7/00 , C21C7/076 , C21C7/10 , C21D9/04 , C22C38/00
CPC分类号： C22C38/24 , C21C7/0056 , C21C7/0075 , C21C7/076 , C21C7/10 , C21D9/04 , C22C38/001
摘要： The present invention discloses a method for producing a hypereutectoid steel rail resistant to contact fatigue. The method includes performing molten iron desulphurization, converter smelting, LF refining, RH refining, continuous casting and billet heating, rolling and heat treatment after rolling to obtain a steel rail; the heat treatment after rolling includes performing accelerated cooling and air cooling on the center of a tread of a rail head, both sides of the rail head and the center of a rail bottom of the steel rail obtained after rolling, wherein the starting cooling temperature of the accelerated cooling is 650-900° C., the cooling rate is 1.0-5.0° C./s, and the final cooling temperature is 400-550° C.; and after reaching the final cooling temperature, the accelerated cooling is stopped and it is air-cooled to room temperature. The hypereutectoid steel rail has higher purity, better contact fatigue resistance and good wear resistance.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式