Inductive heating of semi-solid material

    公开(公告)号:US07049565B2

    公开(公告)日:2006-05-23

    申请号:US10377393

    申请日:2003-02-28

    IPC分类号: H05B6/02

    CPC分类号: B22D17/007 H05B6/06 H05B6/101

    摘要: The present invention utilizes a dynamically controlled frequency system for the process of induction heating semi-solid material. Semi-solid precursor material is machined into billets of a desired size. These billets are subjected to one or more heating processes utilizing an induction heating process that is dynamically controlled by adjusting the frequency of an induction coil current to achieve a desired temperature in a semi-solid material billet.

    Processes for continuously producing fine grained metal compositions and for semi-solid forming of shaped articles
    3.
    发明授权
    Processes for continuously producing fine grained metal compositions and for semi-solid forming of shaped articles 失效
    用于连续生产细粒金属组合物和成形制品的半固体成型的方法

    公开(公告)号:US06500284B1

    公开(公告)日:2002-12-31

    申请号:US09095434

    申请日:1998-06-10

    IPC分类号: C22F104

    摘要: There is provided a continuous casting and rolling process for continuously producing a deformed fine grain solid metal composition suitable for semi-solid forming. The process is characterized by high throughput, continuity, and precise control of the process parameters, such as solidification rate, rolling temperature and speed and total deformation. The solidification rate is preferred to be in a range of 10 to 150° C./s, and the total deformation is controlled to be larger than a Mises effective strain of 2.3 to obtain a deformed fine grain structure with enough distortion energy. A method combining the continuous casting and rolling process of preparing semi-solid raw material with semi-solid forming of shaped articles is also disclosed.

    摘要翻译: 提供连续铸造和轧制方法,用于连续生产适用于半固体成形的变形的细晶粒固体金属组合物。 该工艺的特点是高生产率,连续性和精确控制工艺参数,如凝固速率,轧制温度,速度和总变形。 固化速度优选在10〜150℃/秒的范围内,并且将总变形控制为大于米塞斯有效应变为2.3以获得具有足够的变形能的变形细晶粒结构。 还公开了一种将半固体原料与成型制品半固体成型制备连续铸造和轧制过程的方法。

    Processes for producing fine grained metal compositions using continuous
extrusion for semi-solid forming of shaped articles
    4.
    发明授权
    Processes for producing fine grained metal compositions using continuous extrusion for semi-solid forming of shaped articles 失效
    使用连续挤出成型制品的半固体成型生产细粒金属组合物的方法

    公开(公告)号:US6120625A

    公开(公告)日:2000-09-19

    申请号:US95217

    申请日:1998-06-10

    摘要: There are provided a continuous frictional extrusion process for continuously producing a deformed fine grain solid metal composition suitable for semi-solid forming. The process is featured by a large range of produce dimension and by precise control of the process parameter, such as total deformation, extrusion temperature and speed. The total deformation is controlled to be larger than a Mises effective strain of 2.3 to obtain a deformed fine grain structure with enough distortion energy stored, having a grain size less than 30 .mu.m and a subgrain size less than 2 .mu.m. A method combining the continuous extrusion process of preparing semi-solid raw material with semi-solid forming of shaped articles is also disclosed.

    摘要翻译: 提供了连续摩擦挤压方法,用于连续地生产适用于半固体成形的变形细晶粒固体金属组合物。 该工艺的特点是产品尺寸范围广,精确控制工艺参数,如总变形,挤出温度和速度。 将总变形控制为大于米塞斯有效应变为2.3,以获得具有足够的变形能量的变形细晶粒结构,其具有小于30μm的粒度和小于2μm的亚晶粒度。 还公开了将半固体原料与成型制品的半固体成型相结合的连续挤出方法。