117 results about "Valve metal" patented technology

A solid electrolytic capacitor according to one aspect of the present disclosure includes: an anode body made of a valve metal; a dielectric layer formed on the anode body; and a solid electrolyte layer formed on the dielectric layer. The solid electrolyte layer includes: a first conductive polymer layer formed on the dielectric layer and heterogeneously doped with a monomolecular dopant; a block layer formed on the first conductive polymer layer; and a second conductive polymer layer formed on the block layer and composed of a self-doped-type conductive polymer containing a plurality of side chains containing a functional group that can be doped. The block layer blocks a migration of the self-doped-type conductive polymer from the second conductive polymer layer into the first conductive polymer layer and / or a migration of the self-doped-type conductive polymer from the second conductive polymer layer into pores of the porous anode body.

The present invention provides a metal foil for an electrolytic capacitor, said metal foil including a valve metal and having two main surface regions. At least one of the main surface regions has a plurality of recesses extending in a line shape, and the depth of the recesses is between 4 μm and 58 μm inclusive, or the projected area ratio of the recesses in the main surface regions is between 8% and 45% inclusive.

The invention relates to the technical field of surface strengthening treatment and coating preparation, in particular to a micro-arc oxidation electrolyte, a preparation method of the micro-arc oxidation electrolyte and a preparation method of an oxide ceramic coating on the surface of a magnesium-copper dissimilar metal material component. The invention provides a micro-arc oxidation electrolyte. The micro-arc oxidation electrolyte comprises a main film-forming agent, an arcing aid, a pH regulator, a corrosion inhibitor and water, the main film-forming agent comprises ammonium fluozirconate and / or potassium fluozirconate; the arcing aid comprises one or more of disodium hydrogen phosphate, sodium dihydrogen phosphate, ammonium dihydrogen phosphate and diammonium hydrogen phosphate; the corrosion inhibitor comprises one or more of hexamethylenetetramine, ammonium bifluoride and triethanolamine. The micro-arc oxidation electrolyte breaks through the problem that valve metal and non-valve metal cannot be subjected to arc discharge at the same time for micro-arc oxidation treatment in the micro-arc oxidation process.

The present invention discloses a preparation method for an e-cigarette heating component, which at least includes the following steps: manufacturing a valve metal shell with a receiving groove; using an etching process to corrode a valve metal plate to obtain a heating sheet, the heating sheet including a heating part and a conductance part; through micro-arc oxidation technology, making a ceramic film adhere to the inner surface of the receiving groove or the outer surface of the heating sheet; placing the heating part in the receiving groove, and at least part of the conductance part being exposed outside the valve metal shell, so that the heating sheet and the valve metal shell are separated by the ceramic film; performing laser engraving treatment on the conductance part to obtain an electrode; manufacturing a seat body with leads, and welding the electrode and the leads. The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a preparation method for an e-cigarette heating component with a short heat conduction path and being safer, more durable, and an e-cigarette heating component obtained by using this preparation method.

Provided are an electrolytic capacitor and a manufacturing method capable of achieving both low specific resistance electrolyte and low leakage current. An anode body comprises an anode body of a valve metal, and a powder layer which is made of a valve metal powder and is formed on the anode body. A capacitor element includes the anode body, a cathode body, a separator, and an electrolyte containing moisture. The moisture content of the capacitor element is 4 wt% to 20 wt% inclusive relative to the electrolyte. This manufacturing method comprises: an element formation step for forming a capacitor element by stacking an anode body and a cathode body with a separator interposed therebetween; an impregnation step for impregnating the capacitor element with an electrolyte containing moisture; and an adjustment step for adjusting the moisture content of the capacitor element. In the element formation step, the anode body, which is formed by forming a powder layer of valve metal powder on an anode body of a valve metal, is overlaid on the cathode body with the separator interposed therebetween. In the adjustment step, the moisture content of the capacitor element is adjusted to 4-20 wt% relative to the electrolyte.

To suppress the decrease in capacitance of an electrolytic capacitor and the increase in a leakage current.SOLUTION: An electrode foil for an electrolytic capacitor includes an anode body containing a valve metal, an intermediate layer covering at least a portion of the anode body, and a first dielectric layer covering at least a portion of the intermediate layer. The intermediate layer contains elemental zinc.SELECTED DRAWING: Figure 1

Electrodes, electrolytes, capacitive elements, capacitors, and methods of making or modifying or impregnating electrodes.SOLUTION: According to the present application, an electrode is provided having a substrate and a sintered body on a first major surface of the substrate. The substrate includes a first valve metal. The sintered body comprises fused or sintered particles comprising a second valve metal. The first major surface of the substrate is surface modified.SELECTED DRAWING: Figure 2

This utility model belongs to the technical field of cooling water tower water distribution pipelines, and relates to a device for replacing water distribution nozzles in cooling water towers. It includes two opposing clamps, each with a hollow interior forming a channel. A semi-circular slot is horizontally oriented through the bottom of each clamp, and the two clamps encircle the water distribution branch pipe through the semi-circular slot. Connecting ears are provided on the left and right sides of each clamp, and fastening bolts are installed between the opposing connecting ears. Sealing silicone layers are provided at both ends of each clamp. A metal elbow is connected to the top of each clamp, communicating with the internal channel of the clamp. A valve is installed on the metal elbow, and a nozzle is connected to the end of the metal elbow. Filter holes are provided on the inner wall of the semi-circular slot. This utility model replaces traditional welding with mechanical bolt fixing. The clamp bolts are tightened, reducing the time required for single-point modifications, minimizing downtime losses, ensuring continuous production, and saving on welding equipment, professional personnel, and anti-corrosion treatment costs. Spare parts can be prefabricated in batches.

The utility model discloses a positioning device for valve metal part machining, belongs to the technical field of valve metal part machining, and aims to solve the problems that in the prior art, when a valve body is discharged, a worker needs to sequentially twitch a mounting plate below the valve body, and the valve body can vertically fall in the middle of a movable plate along the guide of a material guide body under the condition of no limiting of the mounting plate; however, under the condition that the valve body vertically falls down without help of personnel, the valve body and the movable plate are possibly damaged when making contact with the movable plate, the purpose of valve body discharging is achieved through repeated manual pulling, and the whole device is troublesome and not portable enough. Comprising a base, an assembling frame is fixedly arranged on one side of the upper portion of the base, a preset groove is formed in the middle of the upper portion of the base, a stable discharging mechanism is installed in the middle of the preset groove and the middle of the assembling frame in a combined mode, the stable discharging mechanism comprises a displacement assembly and a lead screw sliding sleeve, and an operation table is fixedly arranged on the inner side of the lead screw sliding sleeve; positioning mechanisms are installed on the two sides of the upper portion of the operation table.

FIELD: protective coatings.SUBSTANCE: method for forming a protective oxide-ceramic coating on the surface of products made of valve metals and alloys by the plasma electrolytic oxidation method involves immersing the product as an electrode together with a counter electrode in a bath filled with an aqueous alkaline electrolyte, and supplying rectangular pulses of anodic and cathodic voltage to the electrodes using a pulsed power source. Anode and cathode voltage pulses are supplied with a current-free pause between them, the value of which is 4.8 times the duration of the anode pulse. The amplitude values of the cathode voltage pulses range from 85 to 149 V with a pulse repetition frequency from 1000 Hz to 4000 Hz, while the current pulse repetition frequency is additionally regulated.EFFECT: obtaining oxide-ceramic coatings with specified properties under reduced energy conditions, with lower values of cathode voltage.1 cl, 2 ex

The utility model relates to the technical field of polishing devices, in particular to a burr polishing device for a valve metal pressing ring. The technical problems that an existing burr grinding device mostly adopts a manual or semi-automatic mode, due to the fact that pressing rings are different in size, the grinding device needs to be manually adjusted when fixing the pressing rings, and therefore the working efficiency can be affected are solved. According to the technical scheme, the burr grinding device for the valve metal pressing ring comprises a moving assembly, an operation table, a rotating grinding assembly and a fixing assembly, the metal pressing ring with the inner side being ground is placed outside an arc-shaped rubber pad, meanwhile, two sets of arc-shaped telescopic sleeves are adjusted to be attached, and then the metal pressing ring is driven by a driver to be ground. And a second sliding block drives an arc-shaped telescopic sleeve to slide along a second sliding groove, meanwhile, an arc-shaped telescopic column stretches out and draws back to the appropriate size of the metal pressing ring along the arc-shaped telescopic sleeve to fixedly clamp the metal pressing ring, the outer side of the metal pressing ring can be further ground by a grinding head conveniently, and the operability of the grinding device is enhanced.

The application discloses a water-based foam extinguishing agent performance test integrated device and a test method, which comprises a foaming device, a glass foam pipe and a metal foam pipe arranged in the foaming device, an operation terminal and an air compression device connected with the foaming device; the upper part of the glass foam pipe is provided with an opening, the opening is connected with a foam tank through a pipeline, and a feeding pump and a valve F1 are further arranged between the foam tank and the opening; the upper part of the metal foam pipe is provided with a first opening and a second opening, the first opening is connected with the foam tank through a pipeline provided with a valve F3, and the foam in the foam tank flows into the glass foam pipe and the metal foam pipe through the valve F1 and the valve F3 respectively; and the second opening is connected with a foam gun through a pipeline. The application simplifies the test equipment, concentrates three foam performances (foaming, stable foaming and extinguishing performance) in one device, and can measure the foaming multiple, liquid separation time and extinguishing time and other parameters of the foam extinguishing agent in sequence through simple parameter setting and valve switching.

A solid electrolytic capacitor has a high withstand voltage, including: a porous anode body including a valve metal and a dielectric oxide film layer formed on a surface of the valve metal; and an electrolyte layer formed on a surface of the dielectric oxide film layer. The electrolyte layer includes a first conductive polymer layer formed by chemical polymerization and in contact with the dielectric oxide film layer, a second conductive polymer layer formed by electrolytic polymerization and formed on a side opposite to the dielectric oxide film layer with respect to the first conductive polymer layer, and a barrier layer having conductivity and formed between the first conductive polymer layer and the second conductive polymer layer.10 The barrier layer is configured to prevent a conductive polymer layer from being formed by electrolytic polymerization in a region closer to the anode body than the barrier layer.

To provide a solid electrolytic capacitor that has a high withstand voltage.SOLUTION: A solid electrolytic capacitor includes: a porous anode body including a valve metal and a dielectric oxide film layer formed on a surface of the valve metal; and an electrolyte layer formed on a surface of the dielectric oxide film layer. The electrolyte layer includes: a first conductive polymer layer formed by chemical polymerization and in contact with the dielectric oxide film layer; a second conductive polymer layer formed by electrolytic polymerization and formed on a side opposite to the dielectric oxide film layer with respect to the first conductive polymer layer; and a barrier layer having conductivity and formed between the first conductive polymer layer and the second conductive polymer layer. The barrier layer prevents a conductive polymer layer from being formed by electrolytic polymerization in a region closer to the anode body than the barrier layer.SELECTED DRAWING: Figure 2

A solid electrolytic capacitor having a thickness of about 1,000 µm or less is provided. The capacitor comprises a capacitor element comprising an anode component comprising a porous anode body disposed on a surface of an anode substrate. The anode substrate is formed from a valve metal composition and the porous anode body is formed from a sintered powder containing a valve metal composition and having a thickness of about 650 µm or less. The capacitor element further comprises a cathode coating disposed over a dielectric and the porous anode body. The cathode coating comprises a solid electrolyte containing conductive polymer particles, wherein at least a region of the anode substrate is free of the cathode coating. An anode termination is electrically connected to the region of the anode substrate that is free of the cathode coating, and a cathode termination is electrically connected to the cathode coating.

The utility model relates to a low-ESR laminated aluminum electrolytic capacitor based on a continuous phase metal layer. The low-ESR laminated aluminum electrolytic capacitor is characterized by comprising a shell and a core, the core is formed by correspondingly stacking a plurality of layers of pole pieces, the core is packaged in the shell, and an anode leading-out terminal and a cathode leading-out terminal which are connected with a cathode and an anode of the core are respectively arranged at two opposite ends of the shell; the pole piece takes a valve metal foil as a substrate; the periphery of the valve metal foil is divided into an anode part and a cathode part by insulating glue; the peripheral surface of the cathode part is sequentially coated with a solid conductive polymer layer, a non-metal conductive paste layer and a metal conductive paste layer from inside to outside; and the outer surface of the metal conductive paste layer is also coated with a continuous phase conductive metal layer. The negative electrode is coated with the continuous-phase conductive metal layer, so that the cavity defect of the metal slurry layer is improved, the edge coverage rate of conductive metal at the tail part and the side part of the pole piece is increased, the contact area between the pole pieces is increased, the parallel connection effect of the pole pieces is improved, the leading-out distance of the negative electrode is shortened, and the laminated electrolytic capacitor has relatively low ESR (Equivalent Series Resistance) and relatively low leakage current.

A solid electrolytic capacitor including a porous body containing a valve metal, a dielectric layer formed on a surface of the porous body, and two or more conductive layers covering the dielectric layer, the two or more conductive layers including a first conductive layer formed on a surface of the dielectric layer and a second conductive layer laminated on the first conductive layer, the second conductive layer contains a polyaniline composite in which polyaniline is doped with a proton donor.

The utility model belongs to the field of valve cleaning devices, and particularly relates to a valve metal part cleaning device with a rust removal function. The technical problems that a cleaning device is poor in effect of removing rust at the corner of a valve, and part of cleaning devices need to detach the valve for cleaning, so that cleaning is inconvenient are solved. According to the technical scheme, the valve metal part cleaning device with the rust removal function comprises a connecting assembly; the rust removal device further comprises a rotating assembly, a rust removal assembly, a cleaning assembly and a water outlet assembly. By rotating the stud, the external thread ring on the stud rotates in the thread groove in the waterproof shell, the external thread ring drives the waterproof shell to rotate, the insertion block is inserted, the insertion block penetrates through the first limiting groove and extends to the inner wall of the second limiting groove, the insertion block is fixed through the fixing nut, and the rust removal angle of the rust removal device can be changed; the problem that the rust removal effect is poor due to the fact that a cleaning device inconveniently conducts rust removal work on the corners of the valve is solved.

The invention relates to an antifouling and antibacterial micro-arc oxidation product and a preparation method thereof. The preparation method comprises the following steps: adding copper-containing powder into a workpiece to be subjected to micro-arc oxidation; the workpiece to be subjected to micro-arc oxidation is subjected to oxidation treatment through a copper-free micro-arc oxidation electrolyte, the copper-free micro-arc oxidation electrolyte comprises main salt, an additive, a pH regulator and water, the mass concentration of the main salt is 5-20 g / L, the mass concentration of the additive is 1-8 g / L, and the mass concentration of the pH regulator is 0-10 g / L. No copper-containing component needs to be added into the micro-arc oxidation electrolyte, so that the stability of the electrolyte is improved, and the maintenance cost is reduced. In addition, the copper-containing micro-arc oxidation antifouling and antibacterial coating can be prepared on non-valve metal by adopting the preparation method disclosed by the invention. Meanwhile, the method is particularly suitable for preparing the antifouling and antibacterial coating on the surface of the copper-containing particle reinforced magnesium-based composite material.

A production method is a production method for a solid electrolytic capacitor including at least one solid electrolytic capacitor element including a cathode portion and an anode portion including an anode lead-out portion. The production method includes: a step (i) of connecting one anode connecting member made of a metal that is not a valve metal to the anode lead-out portion of the at least one solid electrolytic capacitor element; a step (ii) of forming an exterior body to cover the at least one solid electrolytic capacitor element and at least a part of the anode connecting member; a step (iii) of exposing the surface of a part of the anode connecting member on the exterior body as a connecting surface by removing a part of the exterior body; and a step (iv) of connecting the anode lead terminal to the connecting surface.

A new plasma catalyst in the form of a ceramic-matrix nanocomposite is disclosed for application to the plasma-assisted combustion. The new functionality of the nanoceramic plasma catalyst is driven by the synergistic effect of plasma and solids. The plasma catalyst is based on combinations of valve metal oxides, polar transition-metal oxides, rare-earth oxides and phosphides, alkali metal oxides, silicon oxides and nitrides, etc. are disclosed. The advantage of combining a heterogeneous catalytic and plasma catalytic effect allows utility for large area applications and is scalable for large-scale industries.

The present invention relates to a method for hydrogenating, crushing and powdering a large-scale valve metal ingot. The present invention specifically relates to a method for making a hydrogenated valve metal block using a valve metal (e.g., tantalum, niobium, tantalum alloy, niobium alloy or tantalum-niobium alloy) ingot, as well as the valve metal block prepared thereby and the powder made from the block. The method comprises the following steps: (1) heating the valve metal ingot to a first temperature in a hydrogenation container and performing an activation treatment in a hydrogen reducing atmosphere; (2) cooling the activated block obtained in the previous step to absorb hydrogen; (3) when the temperature drops to a second temperature, continuing to pass hydrogen while keeping the temperature constant so that the valve metal absorbs hydrogen evenly, and then stopping passing hydrogen; (4) cooling the valve metal obtained above to room temperature, and then taking out the hydrogenated block from the hydrogenation container.

A method of facilitating electrolytically depositing chromium onto a metal substrate from an electrolyte including an ionic form of chromium and one or more organic additives in an electrodeposition vessel by applying a current through the electrolyte from an anode to the metal substrate to deposit the chromium on the metal substrate. The method comprises providing the anode, the anode including a core comprising a valve metal, an interlayer disposed on the core and comprising one of a titanium-tantalum alloy or a titanium-palladium alloy, and a catalyst material layer disposed on the interlayer.

There are provided an anodizing method by which straight micropores can be formed and a manufacturing method for an anisotropic conductive member in which a filling defect of a conductive material is suppressed. The anodizing method is a method including subjecting a surface of a valve metal plate to a plurality of times of anodization and forming an anodized film having micropores present in a thickness direction of the valve metal plate and having a barrier layer present in the bottom part of the micropores, on the surface of the valve metal plate. In steps of second and subsequent times of anodization of the plurality of times of anodization, a current increasing period and a current keeping period are continuous. The current increasing period is a period in which a quantity of current increase is more than 0 amperes per square meter per second and 0.2 amperes per square meter per second or less, and which is 10 minutes or less. A current is kept at a constant value during a current keeping period, and the constant value is equal to or less than a maximum current value during the current increasing period.

This invention achieves thinness and low resistance, providing a small, high-capacity solid-state multilayer aluminum electrolytic capacitor. [Solution] In a thin solid laminated aluminum electrolytic capacitor, the laminated core 2 is enclosed inside the outer shell 1 by laminating and fixing multiple electrode sheets. The electrode sheets are based on valve metal foil, with one end being the anode region 2011 and the other end being the cathode region 2012. An insulation rubber 2013 separates the anode region and the cathode region. The anode lead frame is fitted to the bottom of the outer shell, with its upper end electrically connected to the anode end of the laminated core, and its lower end exposed as the anode terminal 302 by penetrating the bottom of the outer shell. The cathode lead frame is fitted to the bottom of the outer shell, with its upper end electrically connected to the cathode end of the laminated core, and its lower end exposed as the cathode terminals 403 and 404 by penetrating the bottom of the outer shell. By fitting the positive and negative lead frames to the bottom of the outer shell, there is no need to bend them as electrode terminals.

The purpose of the present invention is to suppress a decrease in the withstand voltage of a foil due to cutting or the like, and to repair a defective portion of an oxide coating film generated on the foil due to cutting or the like after formation of a power storage element, thereby improving the withstand voltage of the power storage element or power storage device. A manufacturing method according to one aspect of the present application comprises: a step for performing a surface expansion treatment on a foil formed from a valve metal; a step for forming an oxide film layer (26) on the foil subjected to the surface expansion treatment; a step for cutting the foil on which the oxide coating layer is formed; and a step in which a resin layer having a withstand voltage equal to or higher than that of the oxide coating layer is formed on the cut surface of the foil.

The present invention provides a method for manufacturing a structure that can be easily joined to a joining object. The method comprises: a conductive layer forming step of locally forming a conductive layer having conductivity on a surface of an insulating support having at least one surface; a valve metal layer forming step of forming a valve metal layer that covers at least a portion of the conductive layer; an anodic oxide film forming step of performing an anodic oxidation treatment using the conductive layer as an electrode to form the valve metal layer in a region above the conductive layer into an anodic oxide film; a micropore forming step of forming a plurality of micropores extending in the thickness direction of the anodic oxide film; and a filling step of filling the micropores with a conductive substance, wherein a valve metal layer removal step of removing the valve metal layer after the anodic oxide film forming step is included between the anodic oxide film forming step and the filling step.

An improved formed electrolyte suitable for forming an oxide on a valve metal anode and an improved capacitor comprising an oxide formed in the formed electrolyte are provided. The formation electrolyte comprises an inositol derivative defined by Formula (1): wherein each of R1 to R6 is defined.

Provided is an electrode structure having high capacitance, excellent adhesion between an aluminum foil serving as a base material and a dielectric layer, excellent adhesion between valve metal oxide particles in the dielectric layer, and excellent durability when a reverse voltage is applied. Provided is an electrode structure comprising a dielectric layer in which a plurality of valve metal oxide particles form a three-dimensional network structure and are laminated on at least one surface of an aluminum foil, an intermediate layer containing aluminum and carbon is provided between the aluminum foil and the dielectric layer and is formed in at least a partial region of the surface of the aluminum foil, and the valve metal oxide particles and the aluminum foil and the valve metal oxide particles are bonded to each other and the aluminum foil and the valve metal oxide particles are bonded by a bonding portion containing a valve metal oxide and a carbon material.

According to the application, an electrode and an electrolyte are provided. Furthermore, a capacitive element and a capacitor containing the electrolyte or both are provided. The electrode has a substrate and a sintered body on a first main surface of the substrate. The substrate comprises a first valve metal. The sintered body comprises bonded or sintered particles containing a second valve metal. A compound is adsorbed at cracks in the sintered body or at locations where an oxide layer is at least partially absent. This compound is configured to at least partially passivate these locations. Alternatively, such a compound can also be provided in the electrolyte of an electrolytic capacitor.