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396results about How to "Poor contact" patented technology

Manufacturing method and system of radio frequency self-adhesive label

The invention relates to a manufacturing method and a system of a radio frequency self-adhesive label, and the manufacturing method of the radio frequency self-adhesive label comprises the following steps: a) using conductive ink to print an antenna on an inner layer of a surface material film of a thin film; b) mounting a chip; c) testing an electronic device; d) coating silicone oil on the surface of a release material substrate; e) curing a silicone oil release layer; f) coating hot melt adhesive on the silicone oil release layer; g) curing the hot melt adhesive; h) compounding the tested electronic device layer with the release layer coated with the adhesive; i) carrying out die cutting and waste discharge; and j) taking up and obtaining a finished product which can be stuck automatically or manually. The manufacturing method of the radio frequency self-adhesive label can meet the technical requirements of the market on the radio frequency self-adhesive label, has significant advantages in the aspects of manufacturing efficiency, product yield, durability and economy, and can solve the shortcomings of the existing process, and the popularization of the manufacturing method of the radio frequency self-adhesive label is conductive to the wide applications of the radio frequency technology.
Owner:浙江龙游道明光学有限公司

Piercing Terminal, Electric Connector and Their Production Process

This invention is about the electric connector and its processing technique. More specifically, it involves terminals with puncture structure, electric connector and their processing technique. The processing technique herein includes stamping terminal processing, winding displacement processing, injection upper cover, injecting lower cover, piercing processing, removal of material ribbon, front glue chip assembly, assembly of outer metal shell. Among them, the upper cover and lower cover are injected and molded in the middle and rear of the corresponding terminals in array. The processing technique has tackled the problems as unstable contact, poor contact, high electric resistance and micromation which cannot be solved by the current existing electric connector. There should be at least two tusks whose tips are intertwined molded in the electric connector of piercing terminal. The tusks are the pyramid shape with a cambered surface in the inner side; it reduces the electric resistance of electric connector. The upper and lower covers of piercing HDMI electric connector are respectively molded in the arrayed terminals. The rear end of the terminal has molded piercing tusk. The electric connector has become smaller and lighter, improving its performance in every aspect significantly.
Owner:HSU CHING JEN

A negative electrode active material for a lithium ion battery, a preparing method thereof, a negative electrode plate of the lithium ion battery and the lithium ion battery

A negative electrode active material for a lithium ion battery is provided. The active material includes a composite formed by connecting a carbon material and black phosphorus through C-P bonds. The carbon material and the black phosphorus in the active material form the C-P bonds, thus ensuring tight contact between the carbon material and the black phosphorus in charge-discharge processes, and avoiding bad contact with the carbon material and a current collector when the black phosphorus is expanded. In addition, the carbon material is high in flexibility so that expansion of the black phosphorus can be relieved in the aspect of volume. The invention also provides a preparing method of the active material. The method includes mixing the carbon material and the black phosphorus, and then subjecting the mixture to ball milling at a ball milling speed of 300-700 r / min for 10-20 h, wherein the carbon material and the black phosphorus are connected through the C-P bonds to form the composite, and then the active material is formed. The method is simple and easy to operate. The invention also provides a negative electrode plate of the lithium ion battery and the lithium ion battery. The lithium ion battery has extremely high energy density and long cyclic lifetime.
Owner:SHENZHEN UNIV

Measurement method and device for thread parameters

ActiveUS20110238199A1Accurate and automatically performed and non-contact inspectionPoor contactUsing optical meansSpecial data processing applicationsMeasurement deviceMeasurement point
A measurement method for thread parameters for a threaded object (3), by means of a measurement device (1) defining a spatial reference system (X, Y, Z) incorporating an optical sensor (5) to retrieve the shape of the threaded object, and defining a spatial reference system (X′, Y′, Z′), the measurement device (1) having a computer to assemble a first matrix that describes the quadratic form representing the threaded object in the spatial reference system (X, Y, Z), thus providing the relationship between the two spatial reference systems. The method comprises the steps of:a) predefining at least one trajectory of the at least one optical sensor (5) on the threaded object, along which measurement points are selected such that the matrix evaluated on these values satisfies the condition that it has maximum rank,b) performing a first scanning operation by the at least one optical sensor (5) along said at least one trajectory and retrieving data of the predefined measurement points,c) feeding these data to the first matrix and calculating an axes transformation matrix relating the first spatial reference system with the second spatial reference system for defining the relative position of the threaded object with respect to the second spatial reference system,d) using the axes transformation matrix to convert all data retrieved from the second spatial reference system to the first spatial reference system.
Owner:TENARIS CONNECTIONS

Self-cleaning mortar mixer

One or more embodiments of the invention provide a self-cleaning mortar mixer which comprises a mixing box. A hollow rotating shaft is rotatably connected to the top in the mixing box, mixing blades are fixedly connected to the side wall of the hollow rotating shaft, and the upper end of the hollow rotating shaft penetrates through the upper end of the mixing box and extends to the outside of themixing box. The upper end of the hollow rotating shaft is fixedly connected with a rotating connector, the upper end of the rotating connector is fixedly connected with a water inlet pipe, and water spraying openings are evenly formed in the side wall of the hollow rotating shaft. According to the self-cleaning mortar mixer, water is sprayed into the hollow rotating shaft through the water inlet pipe and is rapidly sprayed out from the water spraying openings, residual mortar on the mixing blades and the inner wall of the mixing box is cleaned, and the cleaning effect is excellent; a magneticsliding block moves up and down on the inner wall of a sliding groove through rotation of a reciprocating lead screw, and the magnetic sliding block drives a scraping plate to move up and down on theinner wall of the mixing box; and the residual mortar on the inner wall of the mixing box is scraped up and down, so that the mortar on the inner wall of the mixing box is prevented from influencing the subsequent use of the mixer, and the labor force is reduced.
Owner:WUHU INST OF TECH
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