13results about "Machining electrodes" patented technology

A substrate processing apparatus and a substrate processing method capable of efficiently etching a noble metal film on a substrate are provided. A substrate processing apparatus of one embodiment of the present disclosure includes a substrate rotating portion, a processing liquid supplying portion, an anode and a cathode, and a control portion. The substrate rotating portion holds a substrate and rotates the substrate. The processing liquid supplying portion supplies a processing liquid to the substrate held by the substrate rotating portion. The anode and the cathode apply a voltage to the processing liquid supplied from the processing liquid supplying portion. The control portion controls each portion. In addition, the control portion performs control so that the anode and the cathode are independently in contact with the processing liquid, and the processing liquid in contact with the anode and the processing liquid in contact with the cathode are supplied to the substrate in a phase-separated state at the time of rotation of the substrate.

The application discloses a kind of three-electrode system ultra-precision electrolytic machining device and processing method, it is related to electrolytic machining technical field, electrolytic machining device includes: cathode body, workpiece, tool electrode and fixture.Cathode body is used to connect power supply negative pole;Workpiece is used to connect power supply positive pole;Tool electrode is set between cathode body and workpiece, first electrolyte passage is equipped between cathode body and the upper portion of tool electrode, and both are connected by first insulation connecting block to keep the relative position of cathode body and tool electrode, and the lower portion of tool electrode is used to be oppositely arranged with workpiece to carry out electrolytic machining;Wherein, first electrolyte passage is used to make electrolyte flow between cathode body and the upper portion of tool electrode, so that intermediate potential between cathode body potential and workpiece potential is induced on tool electrode, and fixture is used to fix workpiece and form processing area.The application can improve electrolytic machining precision and stability.

A flexible braided electrode and a method for electrochemical polishing of complex internal channels, belonging to the field of electrolytic processing, wherein the flexible braided electrode is formed by braiding a plurality of flexible conductive wires and a plurality of flexible insulating wires at predetermined intervals, and the diameter of the insulating wires is larger than the diameter of the conductive wires, and a step of a certain height is naturally formed between them, which can avoid short-circuit burnout due to contact between the conductive metal filament and the internal channel, and at the same time can enhance mass transfer and accelerate the discharge of products, the flexible braided electrode has a hollow mesh cylindrical structure, which can achieve combined cleaning of the inside and outside and improve the cleaning effect, during polishing the flexible braided electrode can adaptively bend and deform to conform to the curved internal channel, and by utilizing its in-and-out-out penetration characteristics, it can perform combined cleaning of the inside and outside, and by combining this with the rotation and reciprocating motion of the electrode, it can achieve electrochemical polishing of complex internal channels, and the flexible braided electrode provided by this application, when combined with an innovative method, can achieve highly efficient and high-quality finishing of complex internal channels.

Methods and systems of electrochemical machining are provided. The method can include applying a first electrical potential to a tool electrode of an electrochemical machining system to generate a primary electric field. The electrochemical machining system can include a workpiece opposite the tool electrode, at least one bias electrode, and at least one fluid delivery channel within the at least one bias electrode. The method can also include applying at least one second electrical potential to the at least one bias electrode. The method can also include delivering a charged electrolyte solution through the at least one fluid delivery channel into the electrolyte solution. The application of the at least one second electrical potential and the delivery of the charged electrolyte solution generates at least one secondary electric field adjacent to the primary electric field and quenches at least one location of the primary electric field.

An electrolyte solution for electrochemical processing is provided. The electrolyte solution comprises a substantially anhydrous ionic solvent, an ionizable material in the form of an inorganic salt, and a viscosity modifier. The electrolyte has a viscosity in the range of 1 mPa·s to 50 mPa·s at 20 °C.

An electrolytic machining apparatus and method for the entire mold surface of a shrouded wing by in-situ deformation of an integrated cathode, belonging to the field of electrolytic machining, wherein the wing ventral / wing dorsal cathode body in the apparatus is composed of a cathode base, shroud edge plate cathode, wing body cathode, dovetail edge plate cathode, shroud side watertight block, dovetail side watertight block, and upper end watertight block, and during machining, the drive device and deformation mechanism cause both side edge plate cathodes to be initially retracted inward, and as the wing body mold surface is machined and the wing body mold surface is machined to a predetermined depth, both side edge plate cathodes generate an outward expansion movement, thereby machining the wing body mold surface and simultaneously causing the both side edge plate cathodes to generate in-situ oscillating deformation that approaches the edge plate mold surfaces on both sides of the wing, thereby achieving synchronous electrolytic machining of the wing body and both side edge plate entire mold surfaces of the shrouded wing, and the apparatus can improve machining efficiency, machining accuracy, and surface quality, and has a relatively good prospect for practical application.

This utility model relates to the field of electrochemical machining technology and discloses an electrode head for preparing high-precision turbulence column parts, comprising: a substrate, a connecting end, and a discharge end. Both the connecting end and the discharge end are connected to the substrate. The substrate includes a shell, the connecting end includes a connector, and the discharge end includes an end body. A pre-reserved groove is provided on one side of the end body, and an insulating strip is filled in the groove. Multiple pre-reserved holes are provided on the end body, and the pre-reserved holes are in communication with the pre-reserved groove. This utility model, by setting a discharge end with pre-reserved holes, an insulating strip, and a pre-reserved groove, utilizes the principle of electrochemical corrosion to process turbulence columns in batches. 180 turbulence columns can be processed in just 6 minutes, with an average of only 0.033 minutes per column. A single part can be completed in just 28 hours, achieving not only high processing precision but also significantly improved efficiency. The spaced pre-reserved grooves ensure sufficient strength at the end of the end body, preventing easy deformation.

The application discloses an electrolytic machining stray corrosion inhibition method based on a zirconium electrode and a bipolar pulse, and comprises the following steps: adopting metal zirconium as a tool electrode; during machining, a bipolar pulse voltage is applied between the tool electrode and a workpiece; through polarity switching of the bipolar pulse voltage, a surface oxide layer of the zirconium electrode is driven to spontaneously form a structure partition with an end face conducting and a side wall insulating in a positive pulse machining stage, so as to inhibit stray corrosion. The application utilizes the synergistic effect of bipolar pulse alternating polarization and the passivation characteristics of the zirconium electrode, effectively shields the side electric field without a side wall insulating coating, significantly improves machining precision, and fundamentally eliminates the problem of anode dissolution loss of the tool electrode caused by a negative pulse in traditional bipolar pulse electrolytic machining.

This invention provides a base film for a composite current collector, a method for preparing the same, the composite current collector, electrode plates, and an electrochemical device, relating to the field of lithium-ion battery technology. The base film for the composite current collector includes an insulating layer and a functional layer disposed on at least one surface of the insulating layer; wherein the functional layer comprises a carbon-containing material and a polymer; the polymer includes any one or a combination of at least two of polyimide, polyamic acid, polyethylene terephthalate, and polyetheretherketone. This invention improves the temperature resistance, stiffness, and metal plating density of the base film for the composite current collector by providing a functional layer on at least one surface of the insulating layer, thereby increasing the weld peeling residue rate, reducing post-weld internal resistance, and minimizing over-soldering.

This invention relates to the field of electrochemical machining technology and discloses a cathode partial insulation device for electrochemical machining. It includes a cathode body and an adjustable insulating cover structure. The working surface of the cathode body has multiple mounting slots, each with a snap-fit ​​part. Multiple insulating modules are detachably mechanically connected to the mounting slots via snap-fit ​​connections, allowing the insulating modules to be independently disassembled and replaced according to machining requirements. In a second embodiment, a flexible insulating film is attached to the working surface of the cathode body. The flexible insulating film has weakening lines dividing it into multiple zones, and each zone has a traction tag at its edge. During machining, the traction tag is pulled along the weakening lines to gradually remove each zone. This invention solves the problem that existing electrochemical machining cathode insulation layers cannot be configured and dynamically adjusted in three dimensions according to the requirements of complex twisted surfaces, and is suitable for electrochemical machining of complex surface workpieces such as integral bladed disks of aircraft engines.

The flexible electrode is a hollow metal tube having a circular or rectangular cross-section, with an array of equidistant group slit structures machined into its side walls. The electrolyte flows in from both ends of the tubular electrode and flows out through the group slit structure. The deformation control mechanism consists of an electrode chuck (V-1), a long connecting rod (V-4), a slider (V-6), a guide rail (V-5), another slider (V-6), a connecting seat (V-7), and a right-angle connecting rod (V-8). It has multiple rotational and translational pairs (C), the entire structure is symmetrical, and it is mounted on a three-axis linked machine tool. The bending deformation of the flexible electrode is achieved by the coordination of the rotational and translational pairs. Applications of the flexible electrode and deformation control mechanism in electrolytic machining. The flexible electrode has excellent flexibility, can be deformed and recover autonomously, and is reusable. In addition, the deformation control mechanism can achieve bending of the flexible electrode with a large amount of deformation.

This utility model relates to a device for preparing a wound-type double-wire tool electrode, comprising a wire feeding mechanism, a wire winding mechanism, and a wire take-up and discharge mechanism arranged sequentially. The wire winding mechanism includes a first driving mechanism and an annular turntable. The first driving mechanism is used to drive the annular turntable to rotate around the axial direction. A wire winding component is provided on the annular turntable. The wire take-up and discharge mechanism includes a second driving mechanism and a wire take-up component. The second driving mechanism is used to drive the wire take-up component to rotate in the radial parallel direction of the annular turntable and to drive the wire take-up component to reciprocate in the radial parallel direction of the annular turntable. During the conveying process where the wire feeding mechanism feeds out the first wire, and the first wire passes through the annular turntable and is collected by the wire take-up and discharge mechanism, the wire winding component can rotate around the circumference of the first wire and feed out the second wire, so that the second wire is continuously wound around the first wire. The vibration of the wire during the preparation process can also be eliminated by adding a vibration damping mechanism. It is suitable for preparing double-wire tool electrodes made by winding two wires of different diameters and materials with a controllable winding pitch.

An apparatus for electrolytic polishing of metal surfaces by means of solid electrolytes, comprising: a container (6); an element (1) capable of containing at least two metal parts, meaning that it contains the parts (2) so as to avoid their coming out during the electrolytic polishing process, and at the same time allowing them to have a given movement within the element (1), and imparting electrical connectivity to the parts (2) by means of a first electrode (4a); a second electrode (4b); an electrical power source (3) connected to the first electrode (4a) and to the second electrode (4b); a medium consisting of particles (5) of a solid electrolyte in a gaseous environment; and means for generating a relative movement of the particles (5) with respect to the metal parts (2) to be polished.