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.

公开(公告)号：US20160194730A1

公开(公告)日：2016-07-07

申请号：US14990626

申请日：2016-01-07

申请人： PanGang Group Panzhihua Iron & Steel Research Institute Co., Ltd. ,  Pangang Group Panzhihua Steel & Vanadium Co., Ltd.

发明人： Jun YUAN ,  Ming ZOU ,  Hua GUO ,  Dadong LI ,  Yong DENG ,  Zhenyu HAN ,  Yuan WANG ,  Chongmu CHEN

IPC分类号： C21D9/04 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B22D30/00 ,  C21D6/00 ,  C21D8/00 ,  C21D1/84 ,  C21D1/613 ,  C21D1/60 ,  B22D7/00 ,  C22C38/12 ,  C22C33/04

CPC分类号： C21D9/04 ,  B22D11/04 ,  B22D11/1213 ,  C21D1/60 ,  C21D1/613 ,  C21D1/84 ,  C21D6/005 ,  C21D6/008 ,  C21D8/005 ,  C22C33/04 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12

摘要： The invention relates to a high-impact-toughness steel rail and a production method thereof, and belongs to the field of steel rail material production. The present invention is to provide a high-impact-toughness steel rail. The high-impact-toughness steel rail provided in the present invention is a pearlite steel rail with 0.05˜0.09 μm of inter-lamellar spacing and 30˜35 J of ballistic work at normal temperature; the chemical components of the steel rail in weight percentage are: C: 0.71-0.82 wt %, Si: 0.25-0.45 wt %, Mn: 0.75-1.05 wt %, V: 0.03-0.15 wt %, P: ≦0.030 wt %, S: ≦0.035 wt %, Al: ≦0.020 wt %, and Fe and inevitable impurities of the remaining content. The U-type impact toughness of rail head of the steel rail manufactured with the method disclosed in the present invention can be 30 J or more, and the tensile strength is about 1,300 MPa or higher.

摘要翻译： 本发明涉及一种高冲击韧性钢轨及其制造方法，属于钢轨材料生产领域。 本发明提供一种高冲击韧性钢轨。 本发明提供的高冲击韧性钢轨是在常温下具有0.05〜0.09μm的层间间隔和30〜35J的弹道工作的珠光体钢轨， 钢轨的化学成分重量百分比为：C：0.71-0.82重量％，Si：0.25-0.45重量％，Mn：0.75-1.05重量％，V：0.03-0.15重量％，P：NlE; 0.030重量％ ％，S：＆lt; nlE; 0.035重量％，Al：＆lt; nlE; 0.020重量％，Fe和剩余内容物中不可避免的杂质。 采用本发明公开的方法制造的钢轨的轨头的U型冲击韧性可以为30J以上，拉伸强度为约1300MPa以上。