13 results about "Single step" patented technology

The present application relates to a kind of open pit anticline area inclined base dump method, comprising the following steps: dividing the end zone of stope into accelerated propulsion area, when accelerated propulsion area is forwardly propelled distance D, rough surface blasting is carried out to the exposed inclined base;End slope and inclined base meet at the intersection to start with the strike angle θ End slope pseudo-inclined dump, until with inclined base is connected, forms dump step;Stope propulsion distance is D', completes a single step dump disposal;The above steps 1~3 are recycled, after forming a single step dump step, continue to advance along the direction of inclination of inclined base and pseudo-inclined dump direction.This application does not occupy other land, forms dump in anticline area, which is convenient for discharge of stripping material, saves disposal cost, through end slope pseudo-inclined dump method, uses the support of end slope and inclined base to dump, which can improve the stability of inclined base dump, prevent coal seam slope surface from sliding.

This invention relates to a Ti-Fe-Ce-Mn-Zr-Al-Co based hydrogen storage alloy and its preparation method, belonging to the technical field of hydrogen storage alloy materials. It solves at least one of the problems of high activation conditions, long activation cycles, and poor hydrogen absorption / desorption performance in existing TiFe hydrogen storage alloys. This invention provides a Ti-Fe-Ce-Mn-Zr-Al-Co based hydrogen storage alloy, characterized in that: the alloy's specific composition is Ti... 1.05 Ce 0.05 Fe 1.15‑x‑y‑z‑m Mn x Zr y Al z Co m Where x, y, z, and m are atomic ratios, and 0.1≤x≤0.25, 0.05≤y≤0.2, 0.02≤z≤0.1, 0.02≤m≤0.1. The hydrogen storage alloy exhibits excellent activation and hydrogen absorption / desorption properties, with a hydrogen storage capacity ≥1.70 wt.%, a hydrogen absorption plateau pressure ≥0.41 MPa, and a hydrogen desorption plateau pressure ≥0.31 MPa. It can be activated in a single step at 30°C and an initial hydrogen pressure of 3 MPa, making it suitable for widespread application as a solid-state hydrogen storage material in hydrogen fuel cells and other scenarios.

This invention discloses a method for fabricating a thin-film bulk acoustic wave device, comprising etching a first cavity on a silicon substrate, depositing a sacrificial layer within the first cavity, depositing a first electrode on the sacrificial layer and a portion of the substrate, and sequentially depositing a piezoelectric thin film, a second electrode, and a protective layer on the first electrode and another portion of the substrate in a single step, etching until the piezoelectric thin film is exposed, simultaneously etching to obtain a Q-value enhancement structure and an exposed second electrode, etching deposition vias and release holes on the piezoelectric thin film, depositing a first metal pad layer through the deposition vias to connect the first metal pad layer to the first electrode, depositing a second metal pad layer on the exposed second electrode, and etching the sacrificial layer through the release holes to obtain a second cavity, thereby obtaining the thin-film bulk acoustic wave device; the Q-value enhancement layer is etched from the protective layer by physical etching, such that the etching profile of the Q-value enhancement layer is controlled at 80-90°. This invention also discloses a thin-film bulk acoustic wave device fabricated using this method.

This utility model discloses a quick-release tool for semiconductor device chamber sealing rings, specifically relating to the technical field of sealing ring removal and installation tools. It includes a retractable handle, movable sliding columns, and manual adjustment plates. The retractable handle has an adjustment groove at its front end. The movable sliding columns are respectively embedded at both ends of the inner wall of the sliding cavity, and the manual adjustment plates are respectively disposed within the inner cavity of the sliding block. The movable sliding columns drive the shovel and prying claws to slide and retract into the handle's inner cavity, significantly reducing the overall size of the tool. This makes it easy to carry or store in small spaces such as tool bags. When retracted, the tool is encased in the handle, preventing scratches to the user or damage to other items when exposed. It also reduces friction between the tool surface and the external environment, extending its service life. The tool's length can be adjusted by inserting limiting pins into different limiting holes. Once slid into position, releasing the pin locks the tool, preventing loosening due to force during use. The length can be quickly switched in a single step, enabling rapid installation and removal of the sealing ring.

A log pusher comprising a frame, a reception bed attached to the frame and a single step assembly moving up and down with regard to the reception bed. The single step comprises a resilient member for absorbing and / or reducing vibrations associated with logs impacting the log pusher. A method to reduce vibrations associated with logs impacting a log pusher is also provided. The pusher may also be replaced in a log production line using a crane or any other similar equipment.

This invention belongs to the field of metal surface treatment technology, and relates to a cyanide-free cadmium plating and cadmium-titanium plating removal solution, method, and application. The removal solution consists of the following components: main oxidant: nitric acid with a volume percentage concentration of 5% to 15%; pH buffer and complexing component: composed of ammonium acetate and ammonium citrate, with a total addition amount of 5 to 15 grams per 100 ml of the removal solution, wherein the mass percentage of ammonium citrate is not less than 30%; conductive salt: ammonium chloride, with an addition amount of 10 to 25 grams per 100 ml of the removal solution; additive: double-functional... The invention comprises a bifunctional nanocapsule additive, added at a rate of 1 to 4 grams per 100 ml of stripping solution, with the remainder being deionized water. The bifunctional nanocapsule additive has a core-shell structure, with a core of layered hexagonal boron nitride nanosheets and a shell of pH-responsive silane-cerium composite gel. The stripping solution of this invention is completely free of ammonium nitrate, thus avoiding regulatory risks. It achieves efficient stripping, simultaneous inhibition of hydrogen embrittlement, and in-situ self-passivation through a one-step operation, integrating traditional multi-step processes into a single step, significantly simplifying the process and resulting in excellent stripping quality.

The application discloses a pencil-coating-based self-buffering interface structure of a solid-state battery, which is a graphite-based composite thin layer formed by pencil friction coating, wherein the graphite-based composite thin layer is in a discontinuous porous form, the surface resistance of the graphite-based composite thin layer is 10 Ω / sq-10 kΩ / sq, and the coating coverage of the graphite-based composite thin layer is 30%-80%. The application uses a single step of pencil coating to in-situ construct a unique multifunctional interface layer, and the discontinuous porous structure of the interface layer synchronously realizes three functions of electronic seepage conduction, lithium ion transmission across the interface and stress elastic buffering, thereby fundamentally and cooperatively solving the electric-ion-force transmission contradiction of the interface of the solid-state battery, and the interface engineering can be completed only by using a drawing pencil, the material cost is negligible, the process operation is simple and has good repeatability, and the process is easy to integrate in large-scale production.

The object of the present invention is to provide a gold plating method that can form a uniform gold film with good adhesion, low porosity, and sufficient thickness in a single step, and that has a low environmental impact. [Solution] The present invention relates to a plating solution composition for gold plating a metal layer made of a metal selected from the group consisting of palladium, silver, platinum, rhodium, ruthenium, iridium, and nickel, or a metal layer made of an alloy containing said metal, wherein the plating solution composition comprises 3-pyridinesulfonic acid and / or its salts.

This invention discloses a CMAS standard sphere based on pneumatic pore synergy, its preparation method, and its application. The method includes: weighing the required mass of original CMAS powder and placing it in a tablet mold; pressing it into a blank under a pressure of 10-100 MPa, forming a connected venting micropore structure inside the blank; placing the blank in a non-contact, stable suspension device; using a laser heating device to rapidly heat the blank to 1800-2000℃ in a single step within 20-40 seconds, causing the internal gas to spontaneously and instantly escape through the venting micropore structure before surface liquefaction and sealing, melting to form bubble-free spherical droplets; turning off the laser heating device and rapidly cooling and solidifying the molten droplets to obtain the CMAS standard sphere. The CMAS standard sphere prepared by this method has a sphericity ≥0.95, a composition highly consistent with the original CMAS, and features a simplified process, low energy consumption, and high efficiency. It provides an ideal standard test sample for the high-temperature spreading and wetting kinetics study of thermal barrier coatings and environmental barrier coatings, and has good application prospects.

This invention belongs to the field of molecular synthesis and materials technology, and discloses a method for preparing small molecule materials based on benzothiophene-benzodithiophene (DBDTT) and benzoselenophene-benzodiselenophene, as well as their applications. The method includes: using 1-chloro-2-iodobenzene or 1-chloro-2-bromobenzene and trimethylethynylsilane as raw materials, after a stalk coupling reaction, removing the TMS (trimethylsilyl group) with potassium hydrofluoric acid to obtain a key intermediate; using S8 or Se as a sulfur source or selenium source, and potassium carbonate as a base, a series of fused-ring thiophene / selenophene small molecule materials are synthesized through a cascade cyclization reaction. The substrates of this invention are simple to synthesize, the raw materials are inexpensive and readily available; no metals are involved; the reaction can be carried out under air conditions; the reaction efficiency is high, with three rings fused simultaneously in a single step; the yield is moderate, and even at a large scale (10 mmol), the yield can still reach 58%. Therefore, this method is suitable for industrial production.

The present disclosure provides a method for treating a subterranean formation, may include injecting a treatment fluid into the subterranean formation, the treatment fluid including at least one of an inorganic acid or an organic acid, at least one of hydrofluoric acid or hydrofluoric acid precursor, and a precipitate inhibitor, and after injecting the treatment fluid into the subterranean formation, performing at least one of a fracturing treatment or a stimulation treatment. The inorganic acid includes at least one of hydrochloric acid or methanesulfonic acid. The treatment fluid can further include a blend of organic acids including at least one of citric acid, acetic acid, formic acid, or lactic acid. The hydrofluoric acid precursor includes at least one of ammonium bifluoride or ammonium fluoride. The precipitate inhibitor prevents precipitation of calcium fluoride and magnesium fluoride. The treatment fluid can be pumped in a single step without requiring a preflush treatment.

The present invention discloses a process for delignification of agricultural residue, the process comprising mixing the agricultural residue with a molybdenum-peroxy catalyst having formula [MoO2(OH)(OOH)] and hydrogen peroxide at a temperature in a range from 75℃ to 100℃.