-
公开(公告)号：EP3460107A1
公开(公告)日：2019-03-27
申请号：EP18195757.2
申请日：2018-09-20
发明人： Astl, Dr. Georg
摘要： Die vorliegende Erfindung betrifft ein Verfahren zum elektrochemischen Polieren von Werkstücken (10), bei dem mindestens ein anodisch gepoltes, metallisches Werkstück (10) in ein elektrolytisches Polierbecken (2) mit einem speziell auf das Material des Werkstücks (10) abgestimmten Elektrolyt gegeben wird, wobei zwischen der Anode (10) und einer vorgesehenen Kathode (3) ein kontrollierter elektrischer Strom angelegt wird, bei dem der Elektrolyt als Leiter fungiert und bewirkt, dass Metallionen vom Werkstück (10) abgetragen werden. Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass das Werkstück (10) während der elektrochemischen Reaktion durch eine in dem Polierbecken erzeugte Wirbelschicht (4) aus Teilchen (40) bewegt wird, die durch einen Fluid- oder Gasstrom (5) fluidisiert werden.
-
-
公开(公告)号：EP2978880B1
公开(公告)日：2018-09-12
申请号：EP14727906.1
申请日：2014-03-27
申请人： Tenova S.p.A.
CPC分类号： C25D5/08 , C25D7/0621 , C25D17/12 , C25D21/10 , C25F7/00
摘要： An apparatus (10) for the surface electrolytic treatment in continuous of metal semi-finished products, in particular flat metal semi-finished products, comprising a containment tank (12) containing an electrolytic solution (SE) and inside which a metal semi-finished product (11) is made to advance in continuous along an advancement plane, immersion means (31, 32, 33) for immersing the semi-finished product (11) in the electrolytic solution, at least one pair of electrodes (14) opposite to each other and between which the metal semi-finished product (11) is made to advance in continuous, wherein the pair of electrodes (14) comprises at least one first electrode (15) facing one of the two opposite plane faces of the advancement plane and at a defined distance from the metal semi¬ finished product (11) so as to define with it a first interspace (16) and at least one second electrode (17) facing the other one of the two opposite plane faces of the advancement plane and at a defined distance from the metal semi-finished product (11) so as to define with it a second interspace (18) and wherein the at least one pair of electrodes (14) is immersed in the electrolytic solution and is associable with an electric power supply group, inletting and agitation means (19) for inletting and agitating the electrolytic solution in the tank (12) which comprise at least one duct (20) arranged at at least one pair of electrodes (14) and provided with a delivery end (20a) facing one of the two opposite plane faces at respectively the first interspace (16) or the second interspace (18) and with a suction end (20b) that is opposite the delivery end (20a) and open and immersed in the electrolytic solution contained in the tank (12) and at least one inletting nozzle (21) for inletting electrolytic solution which is associable with feeding means (22) for feeding the solution and the outlet mouth (21a) of which is arranged at said suction end (20b) of the duct (20), wherein the suction end (20b) of the at least one duct (20) has a portion that is free from the at least one nozzle (21) and which is immersed in the electrolytic solution contained in the tank (12) and wherein the jet of electrolytic solution emitted by the nozzle (21) draws from the inside of the tank (12) an electrolytic solution current that enters into the duct (20) through the free portion of the suction end (20b), the jet and the current mixed together exiting from the delivery end (20a) at the first interspace (16) or the second interspace (18).
-
公开(公告)号：EP2756117B1
公开(公告)日：2018-08-22
申请号：EP12831742.7
申请日：2012-09-14
申请人： Ensitech IP Pty Ltd
发明人： LEWER, Simon
摘要： The invention relates to a weld cleaning fluid, and method of cleaning weld or discoloration especially on stainless steel. Stainless steel welds, such as those done by TIG welding, require cleaning to remove the resulting surface discoloration and also to passivate the steel. This is often done using an electro-cleaning apparatus with the assistance of electrolyte cleaning fluids. A new cleaning fluid has been developed that has a generally neutral pH, instead of the highly acidic nature of previously used fluids, which avoids environmental and safety issues. The cleaning fluid composition preferably has potassium or sodium orthophosphate salts as the main active ingredient, or similar such salts, and has a pH of around 7. It may also include a sequestering or chelating agent such as a sodium and/or potassium salt of EDTA, and coloring and fragrance.
-
15.发明公开
公开(公告)号：EP3272913A1
公开(公告)日：2018-01-24
申请号：EP17001237.1
申请日：2017-07-20
申请人： OXAlum s.n.c.
发明人： Scremin, Osvaldo
摘要： Method for the surface treatment of a stainless steel workpiece, characterized in that it comprises at least the following steps:
- shot peening/shot blasting of at least one surface of said workpiece, wherein there are used shots/beads made of electrocast austenitic stainless steel, respectively stainless steel obtained from metal wire, and which are essentially spherical, respectively cylindrical, with a diameter of the spherical body, respectively of the cross section of the cylindrical body, substantially from around 0.4 to 0.8 mm; said method being implemented in an automatic turbine system with inverter, which controls the continuous variation of the rotation speed of the turbine motor and therefore the blasting speed of the shot/beads, so that on said at least one surface of said workpiece there is provided a surface micro-roughness, having micro-peaks and micro-valleys that reduce the area of contact of the worked surface, and
- electro-polishing of said at least one surface of the workpiece by means of tank with a galvanic bath with electrolytic cell, wherein said tank, respectively a coating thereof, made of an electroconductive material, is electrically connected to the cathode means of the electrolytic cell, with formation of a corresponding electrical field extended to the total surface of the tank, respectively of its coating, and said workpiece is arranged in the galvanic bath in electrical connection with respect to the anode means of the electrolytic cell and is maintained during the galvanic treatment at a distance variable from around 100 to 150 mm with respect to the cathode means, so that said surface micro-roughness is reduced, lowering and rounding by removal of material the peaks of said micro-peaks of the surface of the workpiece and improving the non-stick and slip properties of the workpiece.摘要翻译： 1。不锈钢工件的表面处理方法，其特征在于，该方法至少包括以下步骤： - 对所述工件的至少一个表面进行喷丸硬化/喷丸处理，其中使用由电铸奥氏体不锈钢制成的丸粒/珠粒 ，分别由金属丝制成的不锈钢，其基本上为球形，分别为圆柱形，其圆柱体横截面的球体直径基本上为约0.4至0.8mm; 所述方法在具有逆变器的自动涡轮机系统中实施，所述逆变器控制涡轮机马达的转速的连续变化并因此控制喷丸/珠粒的喷射速度，使得在所述工件的所述至少一个表面上设置 表面微粗糙度，具有减小加工表面的接触面积的微峰和微谷，以及 - 借助于带有电解槽的电镀槽对工件的所述至少一个表面进行电抛光 ，其中由导电材料制成的所述容器及其涂层分别与电解池的阴极装置电连接，形成相应的电场，该电场分别延伸至容器的整个表面，并分别形成其涂层，以及 所述工件被布置在电镀浴中，相对于电解槽的阳极装置电连接并且在电流处理过程中被维持 nt相对于阴极装置的距离从大约100到150mm变化，从而所述表面微观粗糙度减小，通过去除材料中所述工件表面的所述微峰的峰值并降低和圆化并改善 工件的不粘和滑动性能。
-
公开(公告)号：EP3257819A1
公开(公告)日：2017-12-20
申请号：EP17177511.7
申请日：2011-08-04
发明人： LEE, Kyle Vincent , SANCHEZ, Justin L. , SANTILLANES, Matthew , SCHWARZ, Kevin M. , SCHOWALTER, Geoffrey Clarke , STEWART, William J.
摘要： Method and apparatus for a low maintenance, high reliability on-site electrolytic generator incorporating automatic cell monitoring for contaminant film buildup, as well as automatically removing or cleaning the contaminant film. This method and apparatus preferably does not require human intervention to clean. For high current density cells, cleaning is preferably performed by reversing the polarity of the electrodes and applying a lower current density to the electrodes, preferably by adjusting the salinity or brine concentration of the electrolyte while keeping the voltage constant. Electrolyte flow preferably comprises water and brine flows which are preferably separately monitored and automatically adjusted. For bipolar cells, flow between modules arranged in parallel is preferably approximately equally distributed between modules and between intermediate electrodes within each module.
摘要翻译： 用于低维护，高可靠性的现场电解发生器的方法和设备，其包括用于污染物膜累积的自动电池监测，以及自动移除或清洁污染物膜。 该方法和装置优选不需要人工干预来清洁。 对于高电流密度电池，优选通过颠倒电极的极性并向电极施加较低的电流密度来执行清洁，优选通过调节电解质的盐度或盐水浓度，同时保持电压恒定。 电解质流优选包括水和盐水流，其优选单独监测并自动调节。 对于双极型电池，平行布置的模块之间的流动优选地近似均匀地分布在模块之间以及每个模块内的中间电极之间。
-
17.发明授权
公开(公告)号：EP1607497B1
公开(公告)日：2017-04-19
申请号：EP05253676.0
申请日：2005-06-14
发明人： Joslin, Frederick R.
摘要： A method for removing a metal layer comprising the steps of providing a part (13) having a slot (17), providing a porous metallic cathode (5) comprising a recess bounded by a wall (19) having an outer surface (7) corresponding to the slot (17), inserting the porous metallic cathode (5) into the slot (17), introducing an electrolyte (27) into the recess of the porous metallic cathode (5), and removing a portion of an inner surface (11) of the slot (17) by flowing an electric current between the part (13) and the porous metallic cathode (5).
摘要翻译： 一种用于去除金属层，其包括：提供具有槽（17）的一部分（13），由一个壁（19）提供包含界定的凹部的多孔金属阴极（5），其具有外表面上的步骤的方法（7），对应 到狭槽（17），将所述多孔金属阴极（5）插入插槽（17），引入到电解质（27）插入多孔金属阴极的凹部（5），并去除的内表面的一部分（11 ）由部分（13）和所述多孔金属阴极（5）之间的电流的流动的所述槽（17）的。
-
18.发明公开METHOD AND APPARATUS FOR ELECTROCHEMICAL ETCHING 审中-公开VERFAHREN UND VORRICHTUNG ZUM ELEKTROCHEMISCHENÄTZEN
公开(公告)号：EP3143186A1
公开(公告)日：2017-03-22
申请号：EP15723280.2
申请日：2015-04-28
发明人： STONE, Richard , ZEZE, Dagou
摘要： A method and apparatus for electrochemical etching are disclosed. The method comprises immersing parts of objects (2) to be etched in an electrolyte (4), applying a voltage between the objects (2) and at least one electrode (6) to cause an electrochemical reaction between the objects (2) and the electrolyte (4), and positioning the objects (2) and electrodes (6) relative to each other such that a reaction product accumulates on the objects (2) during the reaction to reduce the rate of the reaction.
摘要翻译： 公开了一种用于电化学蚀刻的方法和装置。 该方法包括将要蚀刻的物体（2）的部分浸入电解质（4）中，在物体（2）和至少一个电极（6）之间施加电压，以引起物体（2）和物体 电解质（4），并且相对于彼此定位物体（2）和电极（6），使得反应产物在反应期间积聚在物体（2）上以降低反应速率。
-
19.发明授权Method and apparatus for indirect-electrification-type continuous electrolytic etching of metal strip 有权用于与间接电源的金属带连续电解蚀刻的方法和装置
公开(公告)号：EP1342818B1
公开(公告)日：2016-09-07
申请号：EP03004385.5
申请日：2003-03-03
-
20.发明公开
公开(公告)号：EP2969918A2
公开(公告)日：2016-01-20
申请号：EP14762342.5
申请日：2014-03-14
发明人： GOLOVCHENKO, Jene, A. , LU, Bo , KUAN, Aaron, T.
CPC分类号： B05D1/34 , B01D67/0034 , B01D67/0062 , B01D67/0065 , B01D69/02 , B01D2323/35 , B01D2325/02 , C25F3/00 , C25F3/14
摘要： In a method for forming nanopores, two opposing surfaces of a membrane are exposed to an electrically conducting liquid environment. A nanopore nucleation voltage pulse, having a first nucleation pulse amplitude and duration, is applied between the two membrane surfaces, through the liquid environment. After applying the nanopore nucleation voltage pulse, the electrical conductance of the membrane is measured and compared to a first prespecified electrical conductance. Then at least one additional nanopore nucleation voltage pulse is applied between the two membrane surfaces, through the liquid environment, if the measured electrical conductance is no greater than the first prespecified electrical conductance. At least one nanopore diameter tuning voltage pulse, having a tuning pulse voltage amplitude and duration, is applied between the two membrane surfaces, through the liquid environment, if the measured electrical conductance is greater than the first prespecified electrical conductance and no greater than a second prespecified electrical conductance.
摘要翻译： 在用于形成纳米孔的方法中，膜的两个相对表面暴露于导电液体环境。 具有第一成核脉冲幅度和持续时间的纳米孔成核电压脉冲通过液体环境施加在两个膜表面之间。 在施加纳米孔成核电压脉冲之后，测量膜的电导率并与第一预定电导率比较。 然后，如果测量的电导率不大于第一预定电导率，则通过液体环境在两个膜表面之间施加至少一个额外的纳米孔成核电压脉冲。 如果测量的电导率大于第一预定电导率且不大于第二电导率，则具有调谐脉冲电压幅度和持续时间的至少一个纳米孔直径调谐电压脉冲通过液体环境施加在两个膜表面之间 预先规定的电导。
-
-
-
-
-
-
-
-
-
搜索结果
458 条记录 (耗时 0.021 秒)
