公开(公告)号：US08075714B2

公开(公告)日：2011-12-13

申请号：US12017993

申请日：2008-01-22

申请人： Pingshun Zhao ,  Howard W. Ludewig ,  Tao Hong ,  Fernando Martinez Diez ,  Michael Lynn Johnson ,  Kandarp Siddharthbai Patel ,  Zhaolin Hu ,  Steven R. Thompson

发明人： Pingshun Zhao ,  Howard W. Ludewig ,  Tao Hong ,  Fernando Martinez Diez ,  Michael Lynn Johnson ,  Kandarp Siddharthbai Patel ,  Zhaolin Hu ,  Steven R. Thompson

IPC分类号： C21D6/00 ,  C21D9/00 ,  C21D1/42 ,  C21D1/62

CPC分类号： C21D9/50 ,  C21D1/18 ,  C21D1/42 ,  C21D1/60 ,  C21D1/62 ,  C21D9/505 ,  Y02P10/253 ,  Y10T428/12965

摘要： An apparatus for the heat-treating of a heat-hardenable steel cruciform article having a weld seam includes a heating element to heat the weld seam to a point that an austenitic transformation occurs, and a quenching chamber to cool the weld seam, causing the formation of Martensite and an associated expansion. The quenching is rapid since slow quenching may allow a crystalline phase other than martensite to form. The apparatus may comprise rollers operable to convey the welded cruciform article through the apparatus at a speed such that the weld seam is subjected to heating for a predetermined heat time sufficient to cause a formation of martensite there within, and such that the heated portion reaches the quenching chamber and is quenched to create a substantial amount of martensite, e.g., an amount sufficient to cause expansion of the part.

摘要翻译： 具有焊缝的可热硬化钢十字形制品的热处理装置包括将焊缝加热到发生奥氏体相变的点的加热元件和冷却焊缝的淬火室，形成 的马氏体和相关的扩张。 淬火是快速的，因为缓慢淬火可能允许形成马氏体以外的结晶相。 该装置可以包括可操作的辊，其可以以使得焊缝经受加热预定的加热时间足以在其内部形成马氏体的速度将焊接的十字形物品输送穿过设备，并且使得加热部分达到 淬火室并淬火以产生显着量的马氏体，例如足以引起部件膨胀的量。