Bell-shaped furnace
    1.
    发明授权
    Bell-shaped furnace 失效
    钟形炉

    公开(公告)号:US06177044B1

    公开(公告)日:2001-01-23

    申请号:US09161600

    申请日:1998-09-25

    IPC分类号: C21D106

    CPC分类号: C21D9/67 C21D1/84 C21D9/673

    摘要: A top hat furnace especially adapted for annealing steel sheet metal using a protective gas includes a protective top surrounding the batches of sheet steel metal. A cooling top is arranged above the protective top forming an intermediate space. The cooling top has a cover and a lid. The cover of the cooling top has a plurality of air nozzles so that cooling air impacts the protective top in the form of jets. At least one fan produces a flow of cooling air in the intermediate space. The distance between the air nozzles increases from the bottom of the cover towards it upper end. The distance between the nozzles is from four to twelve times greater than is the diameter of each nozzle. The cooling lid is also provided with a plurality of air nozzles. The distance between the nozzles in the cooling lid is from four to seven times greater than is the diameter of each of these nozzles.

    摘要翻译: 特别适用于使用保护气体退火钢板金属的顶帽炉包括围绕钢板金属批次的保护顶部。 冷却顶部布置在保护顶部上方,形成中间空间。 冷却顶部有盖子和盖子。 冷却顶部的盖具有多个空气喷嘴,使得冷却空气以喷射形式冲击保护顶部。 至少一个风扇在中间空间中产生冷却空气流。 空气喷嘴之间的距离从盖的底部朝向上端增加。 喷嘴之间的距离比每个喷嘴的直径大4至12倍。 冷却盖还设置有多个空气喷嘴。 冷却盖中的喷嘴之间的距离是这些喷嘴的直径的四至七倍。

    Method and device for exchanging the atmosphere in a hood-shaped
annealing furnace
    2.
    发明授权
    Method and device for exchanging the atmosphere in a hood-shaped annealing furnace 失效
    用于在罩形退火炉中更换气氛的方法和装置

    公开(公告)号:US5730930A

    公开(公告)日:1998-03-24

    申请号:US571825

    申请日:1996-02-16

    CPC分类号: C21D9/673 C21D9/67 C21D1/767

    摘要: Fresh gas is blown into the ring-shaped space between the annealing charge and the hood as an upwardly directed high-speed jet (9) at a velocity of approximately 80 m/s. The gas mixture which forms is evacuated through a gas outlet (10) arranged in the pedestal and diametrically opposite to the gas inlet. At a volume flow rate of about 130 m.sup.3 /s, rinsing takes about 6 minutes.

    摘要翻译: PCT No.PCT / EP94 / 02619 Sec。 371日期1996年2月16日 102(e)日期1996年2月16日PCT 1994年8月6日PCT PCT。 公开号WO95 / 05487 日期1995年2月23日将新鲜气体以大约80m / s的速度作为向上定向的高速喷射(9)吹入退火装料和发动机罩之间的环形空间。 形成的气体混合物通过布置在基座中并与气体入口直径相对的气体出口(10)排出。 在约130m 3 / s的体积流速下,漂洗约6分钟。