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    • 8. 发明公开
    • ELECTRIC MELTING METHOD FOR FORMING NUCLEAR POWER PLANT PRESSURE VESSEL CYLINDER
    • 核电厂压力容器油缸的电熔法
    • EP3216549A1
    • 2017-09-13
    • EP15857870.8
    • 2015-11-03
    • Nanfang Additive Manufacturing Technology Co., Ltd
    • WANG, Huaming
    • B23K9/04B23K28/02
    • B23K25/005B22F3/1055B22F5/106B22F2003/1056B22F2999/00B23K9/04B23K9/18B23K9/298B23K2201/12B23K2203/04B23K2203/05B33Y10/00B33Y80/00G21C13/087G21C21/00G21Y2002/206B22F2202/06B22F3/115B22F7/08B22F2003/247
    • An electric melting method for forming a cylinder of a pressure vessel of nuclear power station, in which an electric melting head and a base material are connected to the anode and cathode of a power supply respectively. During the forming of a metal component, the raw metal wire is sent to a surface of the base material by a feeder and the electric melting head to create the electric arc between the raw wire and the base material under the protection of the deposit of granular auxiliary material, wherein the electric arc melts certain of deposited auxiliary material and crates a molten slag pool; a current flows through the raw wire and the molten slag pool to create the resistance heat and the electroslag heat; the raw wire is molten under the high-energy heat resource composed of the electric arc heat, the resistance heat and the electroslag heat, and creates a molten pool on partial surface of the base material; the raw wire and the auxiliary material are continuously fed and a computer is used to control the relative movement between the electric melting head and the base material based on laminated slice data of the formed components, such that the molten pool is rapidly cooled, solidified and deposited on the base material and thus forms the cylinder of the pressure vessel of the nuclear power station. Such method is high efficiency and low cost, as well as excellent mechanical performance.
    • 一种用于形成核电站压力容器的圆筒的电熔法,其中电熔头和基材分别连接到电源的阳极和阴极。 在形成金属部件的过程中,通过给料器和电熔头将原始金属丝送到基材的表面,以在颗粒沉积的保护下在原丝和基材之间产生电弧 辅助材料,其中电弧熔化某些沉积的辅助材料并装入熔渣池; 电流流过原丝和熔渣池以产生电阻热和电渣热; 原丝在由电弧热,电阻热和电渣热组成的高能热源下熔化,在基材部分表面形成熔池; 连续供给原丝和辅助材料,并且使用计算机根据所形成的部件的层压片数据控制电熔头与基材之间的相对运动,使得熔池迅速冷却,固化并且 沉积在基础材料上并因此形成核电站的压力容器的圆柱体。 这种方法效率高,成本低,机械性能优良。