Method for producing magnesium alloy sheet and magnesium alloy coil stock

    公开(公告)号:US09604267B2

    公开(公告)日:2017-03-28

    申请号:US13511898

    申请日:2010-11-15

    摘要: There are provided a method for producing a magnesium alloy sheet having good press formability and a magnesium alloy coil stock obtained by coiling the magnesium alloy sheet. After a raw material sheet 1 composed of a magnesium alloy is preheated to 280° C. or less, the heated raw material sheet 1 is rolled with a reduction roll 3 and the obtained long rolled sheet is coiled. The surface temperature of the reduction roll 3 is set to be 230° C. or more and 290° C. or less. The preheating, rolling, and coiling are repeatedly performed in a continuous manner. By setting both the temperatures of the raw material sheet 1 and reduction roll 3 to be certain temperatures, the rolling property of the raw material sheet can be improved and the raw material sheet can be properly rolled in a continuous manner. In addition, a variation in temperature in the width direction of the reduction roll can be suppressed and uniform rolling can be performed, resulting in the production of a long magnesium alloy sheet. In this magnesium alloy sheet, working strain is sufficiently introduced by rolling and an increase in the size of crystal grains is suppressed. Thus, the magnesium alloy sheet has good press formability. Furthermore, a coil stock in which telescoping is not easily caused and that has good appearance is obtained.

    ROLLED MAGNESIUM ALLOY MATERIAL, MAGNESIUM ALLOY STRUCTURAL MEMBER, AND METHOD FOR PRODUCING ROLLED MAGNESIUM ALLOY MATERIAL
    10.
    发明申请
    ROLLED MAGNESIUM ALLOY MATERIAL, MAGNESIUM ALLOY STRUCTURAL MEMBER, AND METHOD FOR PRODUCING ROLLED MAGNESIUM ALLOY MATERIAL 审中-公开
    轧制镁合金材料,镁合金结构件及其生产方法镁合金材料

    公开(公告)号:US20130323523A1

    公开(公告)日:2013-12-05

    申请号:US13985531

    申请日:2012-02-13

    IPC分类号: B21B1/26

    摘要: Provided are a rolled Mg alloy material which has a wide width and whose mechanical properties are uniform in a width direction, a Mg alloy structural member produced by plastically working the rolled Mg alloy material, and a method for producing the rolled Mg alloy material. The method for producing a rolled Mg alloy material includes rolling a Mg alloy material with a reduction roll. The Mg alloy material has a width of 1,000 mm or more, and the reduction roll has three or more regions in the width direction. The temperature is controlled in each of the regions so that a difference between a maximum temperature and a minimum temperature is 10° C. or less in the width direction of a surface of the reduction roll. The variation in the rolled state in the width direction can be reduced by reducing a difference in temperature over the width direction of the reduction roll. As a result, it is possible to produce a rolled Mg alloy material whose mechanical properties are substantially uniform in the width direction.

    摘要翻译: 本发明提供宽幅宽,机械特性在宽度方向上均匀的轧制Mg合金材料,通过对Mg合金材料进行塑性加工而制造的Mg合金结构体,以及轧制Mg合金材料的制造方法。 轧制Mg合金材料的制造方法包括用还原辊轧制Mg合金材料。 Mg合金材料的宽度为1000mm以上,还原辊在宽度方向上具有3个以上的区域。 在每个区域中控制温度,使得最大温度和最低温度之间的差异在还原辊的表面的宽度方向上为10℃以下。 通过减小压下辊的宽度方向上的温度差,可以减小宽度方向上轧制状态的变化。 结果,可以生产在宽度方向上机械性能基本均匀的轧制Mg合金材料。