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    • 5. 发明授权
    • Apparatus for the zone-annealing of a workpiece consisting of a
high-temperature material
    • 用于由高温材料组成的工件进行区域退火的装置
    • US4583720A
    • 1986-04-22
    • US664389
    • 1984-10-24
    • Roland KunzliGunther SchroderRobert Singer
    • Roland KunzliGunther SchroderRobert Singer
    • C21D9/28C21D1/26C21D1/44C21D1/46C22F1/00C22F1/10C21D9/00
    • C21D1/46C21D1/26
    • An apparatus and a process for the zone-annealing of a workpiece (1) consisting of a high-temperature material, in which the workpiece (1) is hung on a suspension device (2) actuated via a roller (3) driven by a drive motor (4) and is provided with a plate-shaped covering screen (10) having an orifice. For the dipping of the workpiece (1), there is underneath the latter a salt bath (5) which is enclosed in an insulating vessel (6) and is provided with a heating system (7) with centrally symmetrical guide plates (8) and which is closed off at the top by means of a floating insulating cover (9). The cooling of the part of the workpiece (1) which is not immersed is guaranteed by a cooling body (11) through which cooling air (14) flows and which has a central passage (12) and, at the lower end of the passage (12), a projecting edge (13) serving as a stop for the covering screen (10). The intended grain structure can be adjusted when the feed speed of the workpiece (1) is varied in portions by means of a drive motor (4) and the amount of cooling air (14). The lateral heat flux is reduced by means of jacket-like heat-insulating cladding of the workpiece (1).
    • 一种用于由高温材料组成的工件(1)的区域退火的装置和方法,其中工件(1)悬挂在经由由(3)驱动的辊(3)致动的悬挂装置(2)上, 驱动马达(4),并且设置有具有孔口的板状覆盖屏(10)。 对于工件(1)的浸渍,在其下方具有封闭在绝缘容器(6)中的盐浴(5),并且设置有具有中心对称导向板(8)的加热系统(7)和 其通过浮动绝缘盖(9)在顶部封闭。 通过冷却空气(14)流过冷却空气(14)并具有中心通道(12)的冷却体(11)和通道的下端来保证工件(1)未被浸没的部分的冷却 (12),用作覆盖屏(10)的止挡件的突出边缘(13)。 当通过驱动马达(4)和冷却空气(14)的量部分地改变工件(1)的进给速度时,可以调整预期的晶粒结构。 通过工件(1)的护套状绝热包层来减小横向热通量。