91 results about "Valve metal" patented technology

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.

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.

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 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.

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.

Provided is a solid electrolytic capacitor having a high withstand voltage. A solid electrolytic capacitor (1) is provided with: a porous anode body having a valve metal (11) and a dielectric oxide film layer (12) formed on the surface of the valve metal (11); and an electrolyte layer (20) formed on the surface of the dielectric oxide film layer (12). The electrolyte layer (20) is provided with: a first conductive polymer layer (21) that is formed by chemical polymerization and is in contact with the dielectric oxide film layer (12); a second conductive polymer layer (22) formed by electrolytic polymerization and formed on the opposite side of the dielectric oxide film layer (12) with respect to the first conductive polymer layer (21); and a conductive barrier layer (23) formed between the first conductive polymer layer (21) and the second conductive polymer layer (22). The barrier layer (23) prevents a conductive polymer layer from being formed by electrolytic polymerization in a region closer to the anode body (10) than the barrier layer (23).

The utility model relates to the field of valve metal part machining, in particular to valve metal part cleaning equipment capable of being rotationally operated. The technical problem that in the using process of cleaning equipment, only simple cleaning operation can be conducted on valve metal parts, the cleanliness is poor, rotating cleaning operation cannot be conducted on the valve metal parts, and the cleaning efficiency is seriously reduced is solved. According to the technical scheme, the valve metal part cleaning equipment capable of being rotationally operated comprises a cleaning box and further comprises a lifting assembly, a spraying assembly and a rotary cleaning assembly. By arranging the lifting assembly, the valve metal part can be soaked, cleaned and lifted, the soaked valve metal part can be sent to the next procedure conveniently, then the soaked valve metal part is subjected to spraying cleaning operation through the spraying assembly, the more efficient cleaning effect is achieved, and the valve metal part can be cleaned by rotating the cleaning assembly. And all-directional rotating cleaning of the cleaning cotton sleeve on the valve metal piece is facilitated.

A solid electrolytic capacitor that includes: a valve metal base including dielectric layers on both surfaces in a thickness direction thereof; a conductive paste layer on each of both sides of the dielectric layer relative to the valve metal base in the thickness direction, the conductive paste layer including a conductive filler; an insulating layer on each of the conductive paste layers on the side opposite from the valve metal base, the insulating layer having a via hole; an outer electrode layer on each of the insulating layers, the outer electrode layer electrically connected to the conductive paste layer through the via hole and in direct contact with a portion of the conductive filler in the conductive paste layer in the via hole when viewed in a lamination direction of the conductive paste layer, the insulating layer, and the outer electrode layer.

A solid electrolytic capacitor containing a porous anode and a solid electrolyte is provided. The porous anode is formed from a sintered valve metal powder that is anodically oxidized to form a dielectric layer thereon having a dielectric thickness of about 70 nm or more, wherein the porous anode has a pore size distribution in which the pores have a size of from about 165 to about 270 nm at a pore volume corresponding to at least 80% of the total pore volume and exhibits a volumetric wet capacitance of about 3,900 µF / cm3 or more. The solid electrolyte contains conductive polymer particles that are disposed within the pores of the porous anode. Further, the solid electrolytic capacitor exhibits a dielectric strength of about 0.6 V / nm or more.

A preparation method for a high-strength wear-resistant composite coating on the surface of a spherical plain bearing, which relates to a preparation method for a high-strength wear-resistant composite coating. The present invention aims to solve the technical problem that the current valve metal spherical plain bearings have high costs and their overall performance is poor due to their overly rough surfaces. The present invention uses a magnetron sputtering combined with a micro-arc oxidation process to prepare a high-strength wear-resistant composite coating on the surface of a spherical plain bearing. First, a Ti film is deposited on the outer spherical surface of the inner ring of a non-valve metal spherical plain bearing by magnetron sputtering technology. Then, a super-hydrophilic titanium dioxide ceramic film with excellent bonding force to the substrate and a rough and porous surface is obtained by micro-arc oxidation. Then, this layer is used as a primer layer. Finally, a CoCrFeNiTi high-entropy coating is deposited on the surface of the titanium dioxide ceramic coating by magnetron sputtering to fill the pores of the original micro-arc oxidation ceramic primer layer, significantly reducing the roughness of the bearing working surface and improving the wear resistance of the parts.

This invention relates to a chlorination electrolyzer comprising a housing having an inlet and an outlet suitable for brine circulation; and at least one pair of bipolar electrodes facing each other and disposed within the housing. The electrolyzer is characterized in that each of the at least one pair of bipolar electrodes comprises: a valve metal substrate; an active coating disposed on the substrate comprising at least one layer of a catalytic composition containing ruthenium and titanium; and a top coating disposed above the active coating, comprising at least one layer of a composition containing oxides of tantalum, niobium, tin, or combinations thereof. The invention also relates to a self-cleaning electrolytic chlorination system comprising such an electrolyzer, a method for producing it, its use in normal and low-salinity tanks for hypochlorite-mediated water disinfection, and a method for hypochlorite-mediated water disinfection.