38results about How to "Improve good rate" patented technology

A printed circuit board comprises at least two adjacent through holes penetrating through the board and two bonding pads. Each bonding pad encloses the through hole and is arranged on the surface of the printed circuit board and used for welding a perforation type subassembly, wherein each bonding pad takes the shape with a tapered end so that soldering tin overflows along the direction of the tapered end in the welding process, thus further preventing the soldering tin from overflowing to an adjacent bonding pad and then causing short circuit.

The invention provides a plasma processing unit, wherein the upper plate electrode comprises an insulating cover plate and a supporting frame mounted on the bottom of the insulating cover plate to support the insulating cover plate, it also has a hole, and gas demarcation strip constructed through insulating material. The unit is mounted in the hole for supporting the frame. The invention can eliminate product defects and increase quality ratio.

A method for processing a special-shaped PTFE supporting piece for a filter comprises the following processing steps of 1) weighing, wherein powdery or granulous PTFE resin materials of piece weight of a product are weighed; 2) rough pressing, wherein the weighed PTFE resin materials are added to a rough pressing mould cavity for mould pressing, the pressure of the mould pressing is 2-5Kg, pressure is kept for 3-5 seconds, and the rough pressing is carried out at indoor temperature; 3) sintering, wherein a billet after rough pressing is placed in a sintering furnace to be sintered, sintering temperature is 360-375 DEG C, sintering time is 6 hours, and the billet is naturally cooled to the indoor temperature; 4) fine pressing, wherein the sintered billet is placed in a fine pressing mould cavity for fine pressing forming, the pressure of the fine pressing is 3-5Kg, dwell time is 2-3 seconds, and the fine pressing is carried out at the indoor temperature; 5) burr removing. Products processed through the method are high in precision, high in quality and high in qualification rate, processing is simple, and the products are suitable for batch production and processing.

The invention relates to a production process for an ear ring machine, which comprises the following steps: placing a fixed seat and a movable seat into a first vibration plate and a second vibration plate respectively to allow the fixed seat and the movable seat to enter a feeding tank under direct vibration, feeding into a fixture, passing a copper wire through a regulating wheel tensioning mechanism, passing the copper wire through a guide hole, cutting the copper wire off with a spring cutter, allowing the copper wire to enter a needle shift position under dead weight, delivering the copper wire to the position of a pressure needle, pressing the pressure needle into the joining hole of the fixed seat and the movable seat, rotating a rotating disc to a next procedure, tightly pressing the needle by upper and lower cylinders with the drive of the upper and lower cylinders, allowing the upper and lower cylinders to push a motor and a riveting and pressing head to rotate forward and backward to rivet and press the copper to prevent the fixed seat and the movable seat from separating, and thus, realizing a moving function; allowing a rotating disc to enter a feeding station, and ejecting a finished product by an ejecting head into the feeding tank to complete feeding. As mechanical operation is used in place of manual operation, the assembly speed is high, the production efficiency is high and the yield of finished products is improved relatively. The production process can realize industrial production and automatic production.

A conductive paste having a desired viscosity that does not change with time and having a stable viscosity characteristic, and an electronic component formed using the conductive paste. The conductive paste includes conductive powder, an organic vehicle, and at least one compound selected from the group consisting of a compound having a tertiary amine structure and being soluble in the organic vehicle, and a heterocyclic structure containing nitrogen but not containing sulfur and being soluble in the organic vehicle. Compounds dissolved in the organic vehicle.

This invention relates to transistor structure with breakdown protection. It can improve transistor anti breakdown energy, and it can enlarge the ion doping concentration redundancy degree of the prearranged avalanche breakdown voltage. The parasitic bipolar type transistor is avoided be ducting by this transistor structure, and the anti breakdown current can be improved. The structure has one metal field effect area block at the same time to enlarge the ion doping concentration redundancy degree needed of the prearranged avalanche breakdown voltage.

The invention discloses a plate shape control method for high-carbon steel in thin slab continuous casting and rolling production, and belongs to the field of steel production. The method comprises the following steps of a steelmaking process, a cast rolling process and a slow cooling process, the cast rolling process comprises continuous casting, rough rolling, induction heating, finish rolling, layer cooling and coiling; during continuous casting, the thickness of a casting blank is 90-110 mm, the pulling speed is controlled within the range of 4.0-4.8 m/min, and the temperature difference of the section of the casting blank is controlled within 70 DEG C; in the finish rolling procedure, an F3 working roller is a high-speed steel roller, and an F4 working roller and an F5 working roller are high-nickel-chromium rollers; the convexity of the F3 working roller is set to be 200 microns larger than that of other produced steel types, and the load distribution of each rack adopts the principle of sequentially decreasing. Compared with the prior art, the good rate of the straight hair curled plate shape is improved.

The invention provides a forming method for uniformly distributing a fluorescer on light-emitting diode (LED), comprising the following steps: a materials-preparing step, i.e. preparing a first liquid glue, a second liquid glue and a fluorescent material liquid glue; a dynamic stirring step, i.e. transmitting the first liquid glue, the second liquid glue and the fluorescent material liquid glue together prepared in the materials-preparing step to a dynamic mixing and stirring device for carrying out dynamic stirring so as to form a uniform liquid fluorescer; and an ejection forming step, i.e. ejecting the uniform liquid fluorescer obtained in the dynamic stirring step into the base of the LED of a mould and forming. By adopting the steps of the method in the invention, the fluorescer can be distributed uniformly in the base of the LED of the mould, brightness which is projected outwards by each batch of LED crystals is distributed uniformly, and the quality of each batch of finished products can be ensured, thereby further greatly improving the good rate of the products, saving human resource and greatly shortening manufacturing time.

A pneumatic driver for regulating the moving speed of valve has a main container body whose internal space is divided by a piston into two spaces with respective opening for installing tube, a pressure regulating valve installed to said tube for regulating the pressure of gas coming in said main container body, and a valve with a long axle connected to said piston via said opening. The pressure of gas in the container is regulated by said pressure regulating valve to control the speed of piston and in turn the moving speed of valve.