216results about How to "Improve manufacturing quality" patented technology

The invention provides a membrane switching circuit and a keystroke using the membrane switching circuit. An insulating layer of the membrane switching circuit is provided with an annular opening. The bottom of an elastic element is matched with the annular opening of the insulating layer and bonded to the annular opening by an adhesive. The annular opening can assist the elastic element to be accurately bonded to a designated position. In addition, the annular opening can prevent the adhesive from overflowing out of the annular opening.

The invention is concerned with an assembled and seal method of box crane beam with ring type orbit using for nuclear power plant, belonging to the establishment construction technology field of nuclear power plant. It relates to rectification of stuff, sealing inner and outside webs and clapboard, sealing upper and down wing edge and the inner and outside webs, sealing stiffened panel, sealing end plate and the rectify after seal. Assemble and seal the web and inner muscle plate to a type of H to reduce the distortion and keep the seal quality, while the temporary backboard controls the final seal distortion when sealing the end plate. It will control the distortion effectively to reach the demand of the first level of nuclear quality and nuclear safety through easy adjustment of circle crane beam after sealed with steady quality.

The invention relates to an ear muff structure, characterized in that two sides of a tensioning band are respectively combined with an ear cap through connecting devices, a formed sleeve is covered on each ear cap, a first bunting surface is respectively formed on the formed sleeves on the opposite inner sides of the two ear caps, an earphone can be bunted against each first bunting surface, thencovers are sleeved outside the ear caps, and tightening parts at the circumferential sleeve ports of second bunting surfaces inside the covers are spanned outside the formed sleeves for tightening and positioning, so that earphones can be covered and clamped in sleeve spaces formed between the second bunting surfaces and the first bunting surfaces to realize the functions of a head band type earphone. The covers can be simply taken down for repeated replacement and cleaning, and supra-aural earphones of different brands can be replaced according to different use requirements or designs, thereby achieving practicability, a wide applicable range and higher competitive power of products.

The present invention can move substrates with high speed, at the same time equably dry substrates. Nozzle (21) supplies cleaning liquid to the surface of the substrate 1, air knives (22a, 22b) eject air to the surface of back of the substrate (1). The air ejected from air knife (22a) makes the cleaning liquid supplied by nozzle (21) move toward the opposite direction of the substrate moving direction on the substrate (1). Adjusting the quantity of the cleaning liquid supplied by nozzle (21) and the quantity and speed of the air ejected from air knife (22a) in order to make the cleaning liquid moving speed slower than the substrate moving speed. Therefore, forming the continuous and thin liquid film of cleaning liquid on the whole surface of the substrate (1) under the air knife (22a). The liquid film forming on the surface of the substrate (1) is vaporized when it through the lower part of the halogen lamp (31), and is wiped off from one end of the substrate (1) continuously.

A method for manufacturing camera modules including image capture devices with protective covers is disclosed. The method includes providing a unitary transparent substrate including a plurality of individual protective covers, providing a unitary component substrate including a plurality of individual component parts, bonding the unitary transparent substrate to the unitary component substrate, dividing the transparent substrate into a plurality of discrete protective covers, and separating the component parts from one another. According to one particular method, the component substrate is a semiconductor wafer having a plurality of integrated electronic image capture devices formed therein. According to another particular method, the component substrate is a circuit board having a plurality of individual device circuit boards formed therein.

The present invention discloses a colorful optical filter which comprises a colorful optical filtering substrate, a conducting layer and a spacer. The colorful optical filter is provided with a shading layer and a colorful filtering layer. The conducting layer is provided on the colorful optical filtering substrate, and the conducting layer is provided with at least one opening at the position relative to the shading layer and/or colorful filtering layer. The spacer is provided in the opening. The invention also discloses a method for preparing the colorful optical filter.

The invention relates to a preparation method of a prefabricated moulding bed, which is widely applied to steel lining prefabrication construction in a nuclear power station particularly and belongs to the technical field of construction of the nuclear power station. The preparation method comprises the following steps of, firstly, welding base H-shaped steel into a meshy block structure; welding an upright post on the meshy block structure; respectively welding longitudinal arc angle steel with a longitudinal upright post support, and welding traverse bus angle steel with a traverse upright post support respectively; and connecting the two upright post supports mutually to form a support structure. The process can effectively decrease the integral welding deflection, and is favorable for guaranteeing the integral stability of a construction member. The moulding bed structure prepared according to the steps can completely achieve the prefabricating precision of a nuclear island steel lining, meet the strict requirements on the level 1 nuclear quality and the nuclear safety, and guarantee the stability of production quality.

The invention discloses a monitoring and controlling method and system of a solidification structure form of laser additive manufacturing based on pictures. The monitoring and controlling method of the solidification structure form of laser additive manufacturing based on pictures comprises the steps that step 1, pictures of a molten pool are collected in real time in the process of laser additivemanufacturing, and the collected pictures of the molten pool are output; step 2, the collected pictures of the molten pool are subjected to treatment, and dynamic characteristic parameters of the molten pool are obtained; step 3, a solidification structure form after the process of laser additive manufacturing is forecasted according to the obtained dynamic characteristic parameters of the moltenpool; and step 4, if the forecasted solidification structure form does not meet requirements, machining parameters in the process of laser additive manufacturing are adjusted, and thus the dynamic characteristic parameters of the molten pool are adjusted to required states. The monitoring and controlling system of the solidification structure form of laser additive manufacturing based on picturescomprises a molten pool picture collecting module, a molten pool picture processing module, a structure form forecasting module and a structure form controlling module. According to the monitoring and controlling method and system of the solidification structure form of laser additive manufacturing based on pictures, online monitoring and predictive controlling of the solidification structure form of laser additive manufacturing are achieved, and the advantages that the implement method is simple, the cost is low, the control efficiency is high, the reliability is high and the like are realized.

The invention provides a simulation optimization method, a system, a computer storage medium and a device for reflow soldering. The method comprises the following steps: generating a three-dimensionalmodel of a PCB circuit board to be optimized; Generating a corresponding solder paste three-dimensional model; selecting the components that need to be reflow soldered, and arranging each component on the solder paste three-dimensional model according to the position information of the selected components on the three-dimensional model of the PCB circuit board to be optimized. According to the preset simulation parameters of reflow soldering, solder paste soldering simulation is carried out on the selected components and pads to form the simulation model of PCB reflow soldering to be optimized. The reflow simulation model of PCB to be optimized is checked to find the problem to be optimized. For the problem to be optimized, the corresponding design and process optimization modifications are adopted. The invention can detect possible soldering problems in advance through the technology of reflow soldering simulation in the design stage, thereby enabling technicians to modify the designand optimize the process.

The invention provides a pipeline conveying structure of raw materials and auxiliary materials of an additive production line. The pipeline conveying structure comprises a supporting column and a first rotary shaft arranged at one end of the supporting column, wherein a feeding box is mounted on the first rotary shaft and a feeding hopper is arranged in the feeding box; a pressure inductor is arranged at the bottom end of the feeding hopper; a second rotary shaft is arranged at one side of the feeding box and a movable baffle is mounted on the second rotary shaft; an inclined side plate is arranged at one side of the movable baffle; an air cylinder is arranged at one side of the supporting column and an air cylinder supporting rod is arranged at one end of the air cylinder; one end of the air cylinder supporting rod is connected to the bottom end of the feeding box; a controller is arranged at one side of the first rotary shaft. According to the pipeline conveying structure provided by the invention, the weight of the raw materials entering the feeding hopper can be accurately induced through the pressure inductor; when the needed weight is reached, the feeding box is controlled to be overturned; the raw materials are conveyed into a reaction kettle through a feeding pipeline and accurate feeding can be carried out; the preparation quality of an additive is improved, and the quality stability of the prepared product is improved.

A method of manufacturing a magnetic tunnel junction device includes a barrier layer forming step of forming a tunnel barrier layer. The barrier layer forming step comprises a step of depositing a first metal layer, an oxygen surfactant layer forming step of forming an oxygen surfactant layer on the first metal layer, a step of deposing a second metal layer above the first oxygen surfactant layer, and an oxidation step of oxidizing the first metal layer and the second metal layer to form a metal oxide layer.

The invention relates to a Chinese herbal medicinal compound preparation used for treating macular degeneration of old people and a preparation method thereof. The Chinese herbal medicinal compound preparation disclosed by the invention is in various medically acceptable dosage forms such as oral liquid and solid preparations comprising tablets, granules and capsules which are composed of extracts of ten traditional Chinese medicinal materials, namely rehmannia glutinosa, root bark of tree peony, poria, Chinese yam, rhizoma alismatis, cornus, cinnamon, monkshood, bat dung and rhizoma atractylodis, and pharmaceutic adjuvants. The invention also discloses a preparation method of the Chinese herbal medicinal compound preparation. The Chinese herbal medicinal compound preparation disclosed by the invention has the effects of tonifying kidnety and warming yang, replenishing qi to invigorate the spleen, invigorating blood circulation to promote the secretion of saliva or body fluid and dredging collaterals to improve eyesight and has obvious therapeutical effect on the macular degeneration of the old people.

The spiral plastic vane forming mold comprises the first mold with hollow and extended plug hole, the second form mold at the plug hole of the first mold with sprue at the plug hole and at least one through channel vertical to the sprue, at least one mold core going through the channel of the second form mold with fixed part, leaning part, material assembly part and out surrounded bulge material output part, with two guide holes at the plug hole, one fixed mold set on the second form mold with pivot hole corresponding to the channel of the second form mold, a drive set connected to the power source with its axial core going through the circle hole, driving the core rotation after fixed with the mold core. It uses material strip left temperature to form spiral strip, without secondary process, and simplified in process and improved in working efficiency.

The invention relates to a method for manufacturing screws of different materials, and the method comprises a preparation step, and engagement step, a stamping step and a forming step sequentially; wherein, the preparation step aims at forming a first engagement part and a second engagement part on a rod body and a rod end of different materials, and the first engagement part and the second engagement part are used for locating first. Then, stamping location of the stamping step together with the first location of the first engagement part and the second engagement part form a preliminary-linked compound blank. The manufacturing method has the advantages of that a welding process can be canceled, the difficulty of following processing caused by the hardening of the materials during the welding process is also avoided and cutting operation after the welding is removed. Finally, screws of different materials and having good quality and hard falling off are formed after screw tooth twisting and forming operation. The manufacturing method simplifies the manufacturing process of the screws and reduces the production cost.

The invention provides a fixing device. In the fixing device, a combining part is formed at the front edge of a butt joint sleeve, and the periphery at the outer side behind the combining part is provided with a friction part; a locking element is an outer sleeve pipe combined with a plastic rubber or a rubber material at the outer side of a rotating head end, and the butt joint sleeve and a spring are accommodated in the outer sleeve pipe; an interference part is arranged on the inner side surface of a front opening of the outer sleeve pipe, and the interference part of the outer sleeve pipe and the friction part of the butt joint sleeve are aligned and pressed to form preset positioning; the outer sleeve pipe is temporarily pressed and connected to the butt joint sleeve so as to be convenient for an automatic machine to take up the outer sleeve; the combining part is aligned and tightened into a joint hole of a first plate and welded into a whole; then the outer sleeve pipe is held and rotated to ensure that the interference part forms interference and abrasion with the friction part on the butt joint sleeve to form a separation state, thus a movable opposite locking state can be formed through the butt joint sleeve, a locking element and a stopping ring body capable of preventing coming off; and the effects of being convenient for volume production of taking pieces, improving the manufacturing quality and the yield rate and reducing the production cost are achieved.

The invention provides a waterproof audio socket. The socket comprises a body, a plurality of first connection terminals and an insulating plate body. The body is provided with a plug groove and the other adjacent side is provided with a plurality of first plug holes. The each first plug hole is communicated with the each plug groove respectively. One end of the each first connection terminal can pass through the corresponding first plug holes respectively so as to be accommodated in the plug groove. The insulating plate body is provided with a plurality of second plug holes and a plurality of second connection terminals are fixedly arranged in the insulating plate body in a watertight mode. One end of the each second connection terminal is exposed from the corresponding second plug hole and the other end is extended outward from the insulating plate body so as to be welded on a circuit board of one electronic product. Under the condition that the insulating plate body is combined to another side of the body through an ultrasonic wave or agglutination mode, the each first connection terminal can be electrically connected with the corresponding second connection terminal. Therefore, moisture and dampness can not infiltrate into the product via the plug groove so that a problem that the electronic product can not be waterproof can be solved.

The invention relates to a method for producing a screw of composite material. The method comprises the steps of material preparation, welding, cutting and shaping in sequence, wherein, in the material preparation step, two different materials are divided into a rod body part and a drilling tail part; a welding part is formed on the rod body part, and a taper body is formed on the drilling tail part. Through the taper surface formed on the taper body, not only air can be smoothly exhausted when the rod body part is welded with the drilling tail part (namely, the welding step), so as to avoid air covering in the welding process, and ensure that pores can not appear at the welding positions, but also the composite blank can not be deflected after welding; finally, through the cutting of residual material in the cutting step, and shaping operations of screw thread rolling and the like, the screw of the composite material can be shaped, therefore, the quality of the screw of the composite material can truly be improved through the method.

The invention mainly relates to the technical field of pyrograph machining, in particular to a full-automatic board pyrograph manufacturing method and a device based on image identification, laser processing and numerical control technology. The device comprises a numerical control motion platform, an exhaust device, an optical zooming mirror, an electric control system, a box body and a laser; a pyrograph machining device adopts a three-axle portal mechanical structure; a worktable is mounted in the numerical control motion platform; the continuous and automatic manufacturing of board pyrograph is finished through controlling three process parameters of the laser output strength of the laser, the time of irradiating a board by the laser and the gap between a laser output head and the board by combining with space motions of each servo shaft; and the device comprises main operating steps of: pyrograph pattern selection, digital pyrograph image processing, image parameter and processing parameter conversion, selection and installation of machining raw materials, machine tool pyrograph manufacturing, and pyrograph aftertreatment. The device is high in automation degree, high in manufacturing efficiency and stable in manufacturing quality, and realizes continuous batch production.