公开(公告)号：US07091447B2

公开(公告)日：2006-08-15

申请号：US10838304

申请日：2004-05-05

申请人： Jong Sung Kim ,  Tae Eun Jin

发明人： Jong Sung Kim ,  Tae Eun Jin

IPC分类号： B23K9/00

CPC分类号： B23K37/003 ,  B23K9/0026 ,  B23K9/32 ,  B23K2101/12 ,  B23K2103/04

摘要： Provided is a local heatsink welding device and a method of welding using the same. The local heatsink welding device includes a welding torch disposed above welds of two pieces of a base metal placed in contact with each other to be welded, the welding torch welding the pieces of the base metal by melting a welding wire on the welds of the base material and fusing the pieces together; and a cooling unit disposed to be able to spray a low-temperature fluid from the sides of the welding torch, the cooling unit cooling at least a portion of a heat-affected zone formed around the outside of a fusion zone in which the base material is molten during welding. The local heatsink welding device can improve mechanical properties such as mechanical strength and fracture toughness of welds such as a pressure vessel for a power plant by suppressing the formation of carbide coarsening on a non-transformation heat-affected zone during welding, without adding a new heat treatment process to the production of steel for the pressure vessel.

摘要翻译： 本发明提供一种局部散热焊接装置及使用其的焊接方法。 本地散热器焊接装置包括焊接在两个相互接触的待焊接的基体金属焊接点上的焊炬，焊炬通过熔化基座焊缝上的焊丝而焊接贱金属片 材料并融合在一起; 以及设置成能够从焊炬的侧面喷射低温流体的冷却单元，所述冷却单元冷却形成在熔融区域外侧的热影响区域的至少一部分，在该区域中，基材 在焊接过程中熔化。 局部散热焊接装置可以通过抑制焊接过程中非变形热影响区域的碳化物粗化的形成，而不增加新的焊接，可以提高发电厂的压力容器等焊缝的机械强度和断裂韧性等机械性能。 热处理工艺生产用于压力容器的钢。

公开(公告)号：US07198707B2

公开(公告)日：2007-04-03

申请号：US10537988

申请日：2003-02-12

申请人： Hyun Young Chang ,  Gon Hwangbo ,  Tae Eun Jin ,  Min Yu Shin

发明人： Hyun Young Chang ,  Gon Hwangbo ,  Tae Eun Jin ,  Min Yu Shin

IPC分类号： C23F13/20

CPC分类号： C23F13/06 ,  C23F13/10

摘要： An apparatus and method for cathodic protection in an environment where thin film corrosive fluids are formed is provided. The apparatus which protects from corrosion an object exposed to the thin film corrosive fluids, by artificially adjusting a potential of the object, comprises a DC power supply of which cathode is electrically connected to the object to be corrosion-protected, and an anodic assembly of which anode is electrically connected to the DC power supply. The anodic assembly includes an insulating filter member through which the corrosive fluids pass and which forms an accommodation space inside the insulating filter member, an anodic member accommodated in the insulating filter member, an electrode lead line which electrically connects the DC power supply to the anodic member, and an absorption conductive member which is accommodated in the insulating filter member to surround the circumference of the anodic member and absorbs the corrosive fluids flowing along an exposed surface of the object to be corrosion-protected.

摘要翻译： 提供了在形成薄膜腐蚀性流体的环境中进行阴极保护的装置和方法。 通过人为调节物体的电位来防止暴露于薄膜腐蚀性液体的物体的腐蚀的装置包括直流电源，阴极与被腐蚀保护的物体电连接，阳极组装 该阳极电连接到DC电源。 阳极组件包括绝缘过滤构件，腐蚀性流体通过该绝缘过滤构件，并且在绝缘过滤构件内形成容纳空间，容纳在绝缘过滤构件中的阳极构件，将直流电源电连接到阳极的电极引线 以及吸收导电构件，其被容纳在绝缘过滤构件中以包围阳极构件的周边并吸收沿着要被腐蚀保护的物体的暴露表面流动的腐蚀性流体。