236results about How to "Easy to Plating" patented technology

A low inductance contact probe comprises conductively coupled plungers. The plungers have coupling means which enable them to be slidably and non-rotatably engaged. A coil spring is attached to the plungers in a manner that prevents rotation of the spring's ends. The spring provides an axial plunger bias, and a torsional bias for conductive coupling between the plungers. The torsional bias is generated by an axial displacement of the spring and by twisting the spring a predetermined angle prior to attachment to the plungers. Torsion-induced contact forces between the plungers assure a direct conductive path through the plungers. The torsional bias further enables a positive attachment of the spring to the plungers. Plungers with hermaphroditic coupling means can be fabricated from a drawn profiled stock by stamping or machining. Essential plunger coupling features can be prefabricated in a drawn profiled stock with a high degree of dimensional accuracy and reproducibility.

A contact probe comprises conductively coupled plungers and a coil spring. The plungers have coupling means which enable them to be slidably and non-rotatably engaged. The spring is attached to the plungers in a manner that prevents rotation of the spring's ends. A desired magnitude of torsional bias is generated by twisting the spring a predetermined angle prior to attachment of the spring to the plungers. An additional torsional bias is generated by the tendency of the spring to twist when the spring is axially displaced. The resultant torsional bias rotatably biases the coupling means of the plungers against each other, generating contact forces for a direct conductive coupling between the plungers. The plungers are self-latching or are retentively attached to the spring using the torsional bias of the spring. Plungers with hermaphroditic coupling means can be fabricated from a sheet metal or a profiled stock by stamping or machining.

A detectable warning plate having integrally cast lugs. The lugs may extend from the undersurface of the plate so that they can be entrapped within concrete during installation. The plate may define a vent hole through the plate above each lug to permit air to escape from beneath the dome plate during installation. The plate may include one or more integral support ribs that extend downwardly from the plate. The support ribs may extend around the plate near the periphery. The lugs may be extensions of the support ribs.

The invention provides an inspection fixture and inspection probe. The inspection fixture has probe for four terminal measuring, capable of coping substrate small size and complication and having simplification structure with reduced component number. The inspection fixture for electric connection of the object to be inspected and the inspection device, has: an electrode part electrically connected to the inspection device; a conductive barrel shaped first barrel, one end of whose is in pressure welding to the inspection part and the other end is in pressure welding to the electrode part; anda conductive barrel shaped second barrel, roughly coaxially configured in the first barrel, wherein one end of the second barrel is in pressure welding to the inspection part and the other end is in pressure welding to the electrode part, two expansion parts formed on the spiral incision part of the barrel wall part in the long axis direction are provided on the first barrel and the second barrelpartitioned with intermediate parts, and the first barrel and the second barrel are fixed on their own intermediate parts.

A transflash-to-SD adaptive card structure is composed of an upper housing, a lower housing, and an adaptive terminal module, to adapt a Transflash memory card into an SD memory card. The adaptive terminal module consists of a plurality of terminals and a moldbase for fixing positions of the terminals. The terminals are formed with 9 SD pins and 8 Transflash pins at a front end and a rear end of the moldbase, respectively. Above the SD pins of sixth and third terminals is installed with a bridge structure. Accordingly, after the adaptive terminal module is emplaced at a proper position between the upper and lower housings, the upper and lower housings are riveted and fixed by an ultrasonic wave, such that power ends of the bridge structure can be pressed down by the upper housing, thereby enabling the sixth terminal to be in contact with the third terminal for short-circuiting.

The invention is applicable to the field of filters, and provides a ceramic dielectric waveguide filter. The ceramic dielectric waveguide filter includes at least one ceramic resonator. A first blindhole with an upward opening is arranged downward in the upper surface of the ceramic resonator, and a second blind hole with a downward opening is arranged upward in the lower surface. The first blindhole and the second blind hole are oppositely arranged, and the first blind hole and the second blind hole are both used for frequency tuning. On the premise of keeping the working mode frequency ofthe ceramic resonator unchanged, the frequency of part of adjacent high-order modes can be raised and kept away from the working frequency, so as to improve the far end suppression performance of thefilter. In addition, the depth required for the first blind hole of the ceramic resonator provided by the invention can be reduced the under the same design size and working frequency, so that the ceramic resonator can be machined and formed, electroplated and debugged in the later period more easily.

The invention discloses a full-automatic anti-residue automatic electroplating device. The full-automatic anti-residue automatic electroplating device comprises an installation bottom plate, wherein support bottom columns are fixedly connected to four corners of the top end of the installation bottom plate, support sliding rails are fixedly connected to the top ends of the support bottom columns,belt winding rollers are fixedly connected to the position, corresponding to the inner position of a lifting installation box, of the outer side of a lifting rotating shaft, and a surface cleaning mechanism is fixedly connected to the position, corresponding to the inner positions of support vertical plates, of the bottom end of a traction belt. A rotating motor drives a transmission rotating shaft and transmission bevel gears to rotate, the transmission bevel gears drive rotating vertical shafts and rotating bevel gears to rotate, then workpieces are driven to rotate through material hangingmechanisms, and in the rotating process of the workpieces, electroplate liquid and washing liquid left on the surfaces of the workpieces are separated from the workpieces under the action of centrifugal force, so that residual electroplate liquid and washing liquid are effectively prevented from being left on the workpieces and affecting next layer of electroplating of the workpieces, and the coating quality of the workpieces is improved.

The invention discloses a conductive silver paste for a ferrite core inductance and a method for producing the same, wherein the method comprises the following steps that: (1) lead-free glass powder is produced and contains an inorganic additive I which occupies 1-4% of the total quantity of the lead-free glass powder; (2) an organic carrier is produced; (3) superfine silver powder, silver flake, the lead-free glass powder and an inorganic additive II are mixed to produce the powder, the powder is uniformly stirred and then added into the organic carrier, after high-speed stirring and dispersion, the powder is rolled by a three-roller mill to the fineness of lower than 10mum, and is screened by a screen of 200 meshes for producing the conductive silver paste for the ferrite core inductance. The ferrite conductive silver paste can effectively solve the defects of the silver paste for the ferrite core inductance on corrosion resistance, adhesive force and electroplating performance, has good quality, is low in cost, and is an ideal substitute product for lead-bearing paste. The adopted technology can ensure the stability and consistency of the silver paste.

The invention discloses a production method of high-purity PPS-OH. The production method of the high-purity PPS-OH comprises the following steps of dropwisely adding pyridine into a sodium 3-chloro-2-hydroxypropanesulfonate aqueous solution, carrying out a reflux reaction process for multiple hours, removing the pyridine and water by pressure reduction, carrying out drying to obtain white solids, dissolving the white solids in one or more organic solvents, filtering to remove inorganic salts, adding one or more organic solvents into the filtrate, filtering, and drying to obtain the high-purity PPS-OH. The PPS-OH obtained by the production method has high purity, is convenient for transportation, has low common salt content, does not contain pyridine and has good electroplating effects.

The present invention relates to an electroplating apparatus comprising: a plating vessel for accommodating an electrolyte containing ions of the metal to be plated; an electrolyte spraying part for receiving the electrolyte and spraying same onto a predetermined area of the object to be plated using at least one spray nozzle; and a circulation pump for sucking the electrolyte in the plating vessel and supplying same to the electrolyte spraying part at a predetermined pressure, so that the electrolyte can be sprayed from the electrolyte spraying part.

The bait casting reel includes a basic unit that includes a spool, a spool driving mechanism, and an attachment frame, and outer plate members that are attached to the attachment frame. All the functional members are installed in the attachment frame, such that the basic unit can perform all the indispensable functions of the bait casting reel. The outer plate members are attached to the attachment frame such that the outer plate members form the surface of the bait casting reel. The present invention allows easy and more flexible ornamental design of bait casting reel while securing its indispensable functions. The present invention also provides a common part of a bait casting reel, which can be used in bait casting reels of other models.

A processing technology for producing brass strips with special-shaped cross-sections, comprising the following steps: melting, casting, high-precision rolling, bright annealing, finished product rolling, and finished product shearing, characterized in that the casting adopts upward continuous casting to prepare billets , and the round crystallizer tooling equipped with graphite molds used for wire rod production by upward continuous casting was transformed into a design cross-section crystallizer tooling for strip production. Compared with the original processing method for producing brass strips with special-shaped cross-sections, it has the characteristics of low manufacturing cost and cheap tooling molds. The surface of the blank obtained by the invention is bright, the crystal texture is uniform, and the surface milling is not required in the subsequent processing. At the same time, the method has low energy consumption, and is a high-efficiency, low-cost method for producing brass strip blanks with special-shaped cross-sections.

The invention provides a circular wind outlet assembly of an air conditioner of an automobile. Components such as a throttle assembly, a rotating connecting rod and buttons are mounted on a main body, and a first outer decorating ring is connected to the outer surface of the main body, so that a base consisting of the main body and the outer decorating ring is used as a rotating body of the wind outlet assembly, and the adjustment of a wind outlet direction is realized through the rotation of the rotating body. Few structures need to be arranged on the first outer decorating ring, so that various modeling treatment such as electroplating and flame plating can be conveniently performed on the outer surface of the first outer decorating ring; and when the rotating body rotates to the directions, the outer surface after modelling treatment is performed can be observed all the time. Compared with a circular wind outlet structure with single appearance surface in prior art, diversifying treatment of appearance can be performed on the circular wind outlet structure of the air conditioner of the automobile disclosed by the invention, so that the beauty of the circular wind outlet structure is greatly improved.

To provide a plating method, which enables wide industrial use of the redox system electroless plating method having excellent characteristics, and a plating bath precursor which is preferable for the plating method. The plating method comprises a process oxidizing first metal ions of a redox system of a plating bath from a lower oxidation state to a high oxidation state, and second metal ions of said redox system are reduced and deposited onto the surface of an object to be plated, wherein a process is provided in which by supplying the electrical current to the plating bath, the first metal ions are reduced from said lower oxidation state to thereby activate the plating bath. The plating bath precursor is formed stabilizing the plating bath so that reduction and deposition of the second metal ions substantially do not occur in order to improve its storing performance.

A method of manufacturing electrical parts is provided, which method comprises the steps of: forming a photoresist on a part of the surface of a substrate; forming a metal layer on the surface of the substrate after the photoresist has been formed; removing a part of the metal layer; removing a metal oxide film formed on the: surface of the metal layer as a result of removing a part of the metal layer; and removing the photoresist. With this method the contact resistance on the surfaces of the electrical parts can be decreased.