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    Method and Device for Cleaning a Surface of a Twin-Roller Continuous Thin Strip Casting Roller
    1.
    发明申请
    Method and Device for Cleaning a Surface of a Twin-Roller Continuous Thin Strip Casting Roller 有权
    双辊连续薄带铸造辊表面清洁方法和装置

    公开(公告)号：US20150231693A1

    公开(公告)日：2015-08-20

    申请号：US14429735

    申请日：2012-09-27

    Applicant: BAOSHAN IRON & STEEL, CO. LTD

    Inventor： Jian Zhang ,  Yuan Fang ,  Changhong Ye ,  Chengquan Wang ,  Junbao Zhang

    IPC: B22D11/06 ,  B22D43/00 ,  B22D11/16

    CPC classification number: B22D11/0665 ,  B22D11/0622 ,  B22D11/16 ,  B22D43/00

    Abstract: A method for cleaning a surface of a twin-roller thin-belt continuous casting roller, wherein each casting roller of the twin-roller thin-belt continuous casting machine comprises two brush rollers in an upper and lower arrangement for cleaning the surface thereof, wherein a rotational direction of at least one brush roller is as same as a casting roller, and the linear speed of the casting roller is constant and greater than its rotational speed; and a roller surface cleaning device controls the distance or the pressure between the brush rollers and the casting roller by a position control device fixed on a casting roller bearing seat, and it controls the flattening amount in 1-10 times of the average pit depth on the casting roller face after being brushed, so as to ensure cleaning efficiency. In a process of twin-roller thin-belt continuous casting, the present invention can improve the cleaning efficiency of the thin-belt continuous casting roller, and make the coefficient of thermal conductivity of the roller surface more uniform and increase the quality of belt.

    Abstract translation: 一种用于清洁双辊薄带连续铸造辊的表面的方法，其中双辊薄带连续铸造机的每个浇铸辊包括用于清洁其表面的上下布置的两个刷辊，其中 至少一个刷辊的旋转方向与铸辊相同，并且铸辊的线速度恒定并大于其转速; 辊表面清洁装置通过固定在铸辊轴承座上的位置控制装置来控制刷辊和铸辊之间的距离或压力，并且控制平均凹坑深度的1-10倍的平整量 刷辊后的辊面，以保证清洗效率。 在双辊薄带连续铸造的过程中，本发明可以提高薄带连续铸造辊的清洁效率，并且使辊表面的导热系数更均匀并提高带的质量。

    HIGH-STRENGTH STEEL WITH GOOD WEATHER RESISTANCE AND MANUFACTURING METHOD THEREFOR
    2.
    发明申请
    HIGH-STRENGTH STEEL WITH GOOD WEATHER RESISTANCE AND MANUFACTURING METHOD THEREFOR 有权

    公开(公告)号：US20250011891A1

    公开(公告)日：2025-01-09

    申请号：US18711815

    申请日：2022-08-29

    Applicant: Baoshan Iron & Steel Co., Ltd.

    Inventor： Sixin Zhao ,  Chengquan Wang

    IPC: C21D9/00 ,  B22D11/00 ,  B22D17/00 ,  C21D1/18 ,  C21D1/84 ,  C21D6/00 ,  C21D8/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50

    Abstract: Disclosed in the present disclosure is a steel. Apart from 90% or more by mass Fe and inevitable impurities, the steel further contains the following chemical elements in percentage by mass: C: 0.22-0.33%, Si: 0.1-1.0%, Mn: 0.3-1.5%, Cr: 0.2-1.6%, Ni: 2.2-3.8%, Mo: 0.1-0.7%, Cu: 0.02-0.3%, Al: 0.01-0.045%, V: 0.01-0.25%, and N≤0.013%. Further disclosed in the present disclosure is a method for manufacturing the steel, comprising: (1) smelting and casting; (2) forging or rolling, involving processing a casting blank to a finished product size by using a roll-in-one-heat process or roll-in-two-heat process; and (3) quenching and tempering: wherein the heating temperature of quenching is 860-1000° C., the holding time is 2-6 h, and water cooling is performed after the quenching; and the tempering temperature is 400-600° C., the holding time is 1-4 h, and air cooling to room temperature is performed after tempering. The steel of the present disclosure has high strength, well matched toughness and plasticity, and good weather resistance, thereby having good application prospects.

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