8results about How to "Mass production" patented technology

This invention provides a method for controlling the weight of a solid tire carcass and its application, relating to the field of tire carcass technology. The method includes the following steps: (a) weighing the base rubber after molding and comparing it to the standard weight of the base rubber to obtain a weight difference value; (b) correcting the amount of intermediate rubber based on the weight difference value from step (a), weighing the tire carcass after molding the intermediate rubber, and comparing it to the standard weight of the intermediate rubber tire carcass to obtain a weight difference value; (c) correcting the amount of tread rubber used in one stage based on the weight difference value from step (b), weighing the tire carcass after molding the first stage of tread rubber, and comparing it to the standard weight of the first stage of tread rubber tire carcass to obtain a weight difference value; (d) correcting the amount of tread rubber used in the second stage based on the weight difference value from step (c), and molding the tread rubber in two stages to obtain the finished tire carcass. This invention, through segmented weighing and multi-stage correction, gradually offsets the weight errors in each molding stage, achieving a tire carcass weight error of ±0.1 kg, far superior to existing weight control precision.

The application discloses a kind of Ni doped nano SnO2 semiconductor HCHO sensing materials and preparation method and application thereof, and the preparation method of sensing material includes the following steps: step one, Sn salt-Ni salt solution is configured;Step two, using supercritical hydrothermal synthesis (CSHS) reaction device, Sn salt-Ni salt solution is contacted with supercritical water and crystallization is generated nano doped oxide, and reaction liquid is discharged and collected after cooling, and the crystalline material is separated, i.e. the Ni doped nano SnO2 semiconductor HCHO sensing material of the application.The Ni doped nano SnO2 semiconductor HCHO sensing material prepared by the method of the application has good structural consistency and excellent sensing performance.

This application discloses a miniaturized thin-film chip coupler, including a PCB board and a first coupling line and a second coupling line disposed on the PCB board. The first coupling line has an input section and a direct output section at its two ends, respectively. The second coupling line has a coupling output section and a thin-film resistor at its two ends, respectively. Multiple first branches and multiple second branches protrude from the opposite ends of the first and second coupling lines, respectively. Multiple third coupling branches and multiple fourth coupling branches protrude from the facing ends of the first and second coupling lines, respectively. A pair of fifth coupling branches protrude from the ends of the first coupling line facing the second coupling line, and a pair of sixth coupling branches protrude from the ends of the second coupling line facing the first coupling line. This miniaturized thin-film chip coupler, through structural design, simplifies the circuit structure, improves product consistency, and can meet the requirements of mass production while reducing costs.

The application relates to the technical field of sodium ion battery negative electrode materials, in particular to a closed pore directional regulation and control bamboo-based hard carbon negative electrode material and a preparation method thereof. The method is used for preparing the bamboo-based hard carbon negative electrode material through bamboo material selection and pretreatment, three-stage gradient pre-oxidation, plasma activation, molten salt auxiliary step-by-step carbonization, deep acid pickling purification, and grading ball milling and surface carbonization coating steps, accurately regulates and controls a closed pore structure, reduces defects, improves a carbon yield and batch consistency, is applied to a sodium ion battery, and realizes synchronous improvement of a first circle coulomb efficiency, sodium storage capacity, rate performance and cycle stability.

This utility model provides a badminton shuttlecock feather arch detection device, belonging to the field of feather arch detection. It includes a workbench and a display screen and controller mounted on the workbench. A rotating seat device is located on the top of the workbench, with multiple sets of insertion holes for inserting feathers. An arch detector is located on the left side of the top of the workbench, and a support plate is located on the rear side wall of the workbench. The device also includes a clamping and loading mechanism: the clamping and loading mechanism is located on the top of the support plate. This mechanism can clamp the detected feathers and place qualified and unqualified products in their respective positions. By setting up this clamping and loading mechanism, this utility model can clamp and load qualified or unqualified feathers, placing them separately in corresponding boxes. This meets the needs of large-scale production, preventing negligence or misjudgment, improving the arch detection and classification effect, and enhancing product quality.

The invention discloses a carbon ceramic closing resistor for a high-voltage circuit breaker and a preparation method of the carbon ceramic closing resistor, and belongs to the technical field of power elements. The problems of poor resistor compactness, non-uniform performance, insufficient mechanical property and the like caused by high pressing and sintering difficulty, process instability and high and non-uniform resistor porosity of the carbon ceramic resistor are solved. The preparation process of the resistor comprises the following steps: by taking aluminum oxide and quartz as ceramic phases, presintered kaolin, mullite and potassium feldspar as clay phases and carbon black or graphite as conductive phases, pre-coating the ceramic phases with the clay phases, carrying out vacuum calcination on pre-coated powder, mixing the pre-coated powder with the secondarily added clay phases and the conductive phases, carrying out spray granulation, pressing a green body, sintering and spraying. And obtaining the carbon ceramic closing resistor. According to the invention, the kaolin is pre-sintered, and the clay phase is pre-coated with the ceramic phase, so that the subsequent blank pressing uniformity and density are increased, the structural defects of the carbon ceramic resistor are reduced, and in combination with the spark plasma sintering technology, the batch rapid production of the resistor can be realized.

This utility model discloses a high-efficiency lamination device for transformer cores, including a mounting plate. A gasket assembly is mounted on the outer surface of the mounting plate. The gasket assembly includes a groove and a U-shaped plate. The groove is formed on the outer surface of the mounting plate, and a set of rotating rollers is installed inside the groove. The bottom surface of the U-shaped plate is fixedly connected to the upper surface of the mounting plate. Two sliding rods are slidably connected to the outer surface of the U-shaped plate, and a limit plate is fixedly connected to the end of each sliding rod that is close to each other. This high-efficiency lamination device for transformer cores, through the coordinated arrangement of the mounting plate and the gasket assembly, achieves automated lamination operation, thereby improving lamination efficiency, meeting the needs of large-scale production, ensuring the quality of subsequent gaskets, and preventing problems such as lamination misalignment and uneven gaps, thus not affecting the performance and service life of the transformer.