59results about How to "High product quality and reliability" patented technology

The invention relates to a delayed ignition device, especially a delayed ignition control device and an electronic detonator for timing initiation. For the problems of the prior art, a delayed ignition control device and an electronic detonator are provided; upon reaching the timing initiation time of the electronic detonator, an energy-storage capacitor can discharge electricity to a detonating fuse head by matching a processor and a switching tube; the component improves the use security of the electronic detonator; meanwhile, in order to prevent the electrostatic influence produced by putting the device into an electronic detonator, an electrostatic protection structure is formed on an electronic detonator cap wire bonding pad accessory in front of a current-limiting resistor. The device comprises a cap wire M and a cap wire N, and comprises an electrostatic protection device, an electronic delay module, an energy-storage device, and a detonating fuse head which are integrated on a printed board. The electrostatic protection device is configured to release static electricity input at any two of the cap wire M, the cap wire N and a detonator shell. The electrostatic protection structure is formed on the cap wire input end bonding pad. The electronic delay module is in both-way communication with an exploder via the cap wire M and the cap wire N.

The invention relates to an X-ray tube cathode and anode alignment device and an alignment method with the device. The device and the method are used for production of X-ray tubes. The X-ray tube cathode and anode alignment device is characterized in that a locating sleeve body and a locating module are included, the locating sleeve body is a hollow barrel-shaped body, the locating module is fixedly arranged in the locating sleeve body, a groove locating block is arranged at the end, protruding out of the locating sleeve body, of the locating module, a locating inclined block is arranged at the end, in the locating sleeve body, of the locating module, the groove locating block is matched with a cathode head locating groove of an X-ray tube cathode component, and the locating inclined block is matched with an anode target corner of an X-ray tube anode component. Alignment is carried out by the alignment device to improve cathode and anode alignment precision, and the work of engraving central lines in cathode and anode parts is eliminated. Production and work efficiency is improved, the high consistency of products is guaranteed, and the reliability of product quality is obviously improved.

The invention belongs to the field of machine design and manufacturing-high grade numerical control machine tool and basic manufacturing equipment, and relates to large-scale seven-shaft linkage numerical control laying and winding integrated forming equipment. A main machine which is formed by three linear shafts and one rotating working table rotating shaft, and a laying and winding head which is driven by three rotating shafts are adopted to composite three translation movement and four rotation movement to achieve laying and winding head spatial motion track control and workpiece rotation.A conveying belt u shaft is adopted to drive winding and rewinding of a cloth belt and speed adjustment to achieve eight-shaft control seven-shaft linkage laying, and therefore automatic forming of acomposite material skin structure with all kinds of spacial special-shaped hook surfaces is achieved. The spatial motion track of the laying winding head can be directly controlled, even a workpiecewith the special-shaped hook surface can be accurately attached to the surface of the laying winding head for laying and winding, and therefore forming operation of material cutting after solidifyingand forming can be reduced and even avoided. Pollution is reduced, the cost is saved, and efficiency is improved. The automatic tow placing technology provides an equipment platform suitable for engineering application research and manufacture.

The invention provides a composite lattice structure and a preparation method. The composite lattice structure is composed of an upper face plate, a lower face plate and a lattice core arranged between the upper face plate and the lower face plate. The lattice core is formed in the manner that lattice core triangular fibers and trapezoidal fibers are interlaced. Foam interlayers are arranged in the upper face plate and the lower face plate. A specific injection manner is applied to the composite lattice structure for VARTM formation. The preparation method of the composite lattice structure comprises the seven steps of (1) preparing a fusible alloy mold core; (2) inserting the triangular fibers; (3) laying fibers on the bottom layers of the upper face plate and the lower face plate; (4) inserting the trapezoidal fibers; (5) arranging the face plate interlayers and laying surface fibers of the face plates; (6) conducting VARTM (vacuum assisted resin transfer molding) formation; (7) heating and melting the fusible alloy mold core. The composite lattice structure and the preparation method effectively solve the connection problem between a composite lattice core and the face plates, integrated formation is achieved, the quality is reliable, the technology is simple, and the node strength is high.

The invention is to provide an unrecoverable cable linear temperature sensing fire probe which realizes recoverable temperature sensing multilevel alarm. Both ends of the temperature sensing cable are respectively connected to a microcomputer modulator and a terminal resistor to form a closed circuit signal collecting circuit, characterized in that the structure of the temperature sensing cable is: two elastic metal conductors adopted respectively coat CTR special material layer with different Vicat softening point, two cores with different coat layers intertwisted in back-twist intertwist way. The intertwisted node distance is preferably between 20mm to 200mm to prepare the temperature sensing cable. The microcomputer modulator monitors the resistance value or voltage alternation between two elastic metal conductors, arranging two resistance values or voltage alarming signal starting values in a memory of the microcomputer modulator to realize double level constant temperature alarming signal output and realizes a malfunction alarming signal output according to the short circuit, the open circuit between the two elastic metal conductors and power cut of the microcomputer modulator.

The invention relates to a recovery cable linear temperature detector. As two ends of temperature cable are connected with microcomputer modulator and terminal resistance R respectively a closed signal collection circuit is formed. It is characterized in that the structure of temperature cable is that an elastic metal conductor is covered by melting NTC characteristic material layer with vicat softening point in 40deg.C-180deg.C; anther is an elastic metal conductor; after a hole belt or net insulation obstructing layer is set between two line cores they are twisted or winded; finally they are covered by outer sleeve layer in plastic protrusion together. Multiple starting resistance values for alarming temperature signals heated on one meter of temperature cable are set in memory of microcomputer modulator, which inspects resistance change of melting NTC characteristic material layer between conductors. When circumstance temperature makes melting NTC characteristic layer soften, elastic metal conduct and melting NTC characteristic material layer forms short circuit so that output of alarming signal of given temperature is realized. When short circuit and open circuit happen between two conductors by not fire factor, failure signals of short circuit and open circuit are outputted by microcomputer modulator. It is provided with simple process, high productivity and low producing cost.

The invention provides a quick response switching-value linear temperature-sensing detector and a warning method, implementing a warning of a switching-value fixed-temperature, an error output of short circuit, an error output of open circuit, and an error output of current failure of an electric signal processing device. The detector forms a closed circuit signal collection circuit by two ends of a temperature-sensing cable to be respectively connected with the electric signal processing device and a terminating resistance, and a resistance value of the terminating resistance R is optimized from 50 ohm to 50M ohm. The invention is characterized in that the temperature-sensing cable has a structure of three elastic metal conductors which are respectively covered by fusible or insulating material layers with Vicat softening points from 40 DEG C to 180 DEG C, three cores of conductors with coatings are intertwisted or wound together, a pitch of the intertwisting or winding is optimized from 20mm to 200mm, wherein one elastic metal conductor is used as a common port, while the other two metal conductors are used as a detecting end 1 and a detecting end 2 respectively.

A switch amount resumable cable linetype temperature-sensing fire detector is provided, which can realize switch amount fixed temperature alarming, resumable temperature-sensing multi-stage alarming, short circuit fault alarming, circuit broken fault alarming, and electric signal processing device fault outputting. Two ends of a temperature-sensing cable are respectively connected with a microcomputer modulator and terminal resistors R1, R2 to form a closed-circuit signal collecting circuit, the fire detector is characterized in that, the structure of the temperature-sensing cable is configurated that, two elastic metal conductors are respectively coated with an insulative material layer, one of the elastic metal conductor coated with an insulative material layer is coated with an conductive layer which is an incontinuous conductive aluminium-plastic composite strip or copper plastic composite strip or metal foil; another metal wire is coated with a thermo-sensitive material layer with a critical temperature CTR; the three wire cores with coated layers are twisted together, wherein, the two elastic metal conductors with coated layers are twisted in a backtwist way, the metal wire with the coat layer is twisted with the two elastic metal conductors with coated layers in a filling way and then to extrusion-mold an oversheath layer.

The invention discloses a 6PIN dual-interface chip smart card and a preparation method thereof. The 6PIN dual-interface chip smart card comprises a 6PIN dual-interface chip module, a card body and a winding antenna, and the winding antenna is used for achieving welding sealing connection between the card body and the 6PIN dual-interface chip module. The 6PIN dual-interface chip smart card is characterized in that the winding antenna has an M-type winding head, and the length of the portion, between the 6PIN dual-interface chip module and the card body, of the head part of the winding antenna is 10-11 mm; the length of the portion, between the 6PIN dual-interface chip module and the card body, of the tail part of the winding antenna is 10-11 mm. According to the provided 6PIN dual-interfacechip smart card, the size of the chip module is 8.0*10.62mm, the area of the chip module is decreased, the cost is reduced, and more convenience is provided for a customer to conduct layout design ofthe card body. According to the provided preparation method for the chip smart card, the problem that the module reliability is reduced due to too high temperature during tinning is solved, and the quality of a prepared product is stable and reliable.

The invention relates to the technical field of washing machine heating tube production, and discloses a new process for producing a heating tube for a washing machine. The new process comprises the following steps: (1) filling a tube, (2) filling powder, (3) contracting the tube, (4) sealing the tube, and (5) performing oil pressurizing. The new process for producing the heating tube for the washing machine is simple, few in production procedures, low in cost, and less in sizing reduction, the density of insulating medium magnesium oxide filled inside is moderate, obvious wrinkle and crack phenomena in direct formation can be avoided, the processing quality of the product is ensured, the consistency of the product appearance is better, and the reliability of the product quality is greatly improved.

The invention discloses a bonding method for preventing injection molding deformation of a long-span bonding lead of an integrated circuit, and the method comprises the following steps: enabling a set gold wire to penetrate into a hole at the top of a chopper, and to penetrate out of a port at the bottom of the chopper; enabling the chopper port to drive the bonding wire to be bonded at the first bonding point A; enabling the port of the chopper to rise backwards to a set height point B according to a set inclination angle; translating the port of the chopper backwards to a set distance C point; vertically lifting the chopper port to a set height D point; moving the port of the chopper to a point E forwards and upwards according to a set height and a set distance; and moving the chopper port forwards and downwards to a second bonding point F to finish bonding and finish lead bonding between the first bonding point A and the second bonding point F. The problem that in an existing plastic packaging technology, under the conditions that the number of pins is large, the distance is small, gold wires are thin, and the span is long, a long-span bonding wire arc is deformed through injection molding is solved. And the method can be popularized to similar long-span lead wire key products according to the wire diameter of the gold wire.

The invention provides a prepreg and a preparation method, the prepreg is composed of continuous reinforced fibers, a thin-layer mesh felt and resin, the prepreg is formed by compounding the continuous reinforced fibers and the thin-layer mesh felt by dipping in a double-sided resin film by a hot melting method, and the thin-layer mesh felt is located at one side of the continuous reinforced fibers, wherein the resin accounts for not more than 15% of the mass of the prepreg, the continuous reinforced fibers account for not less than 80% of the mass of the prepreg, and the balance is the thin-layer mesh felt. Through prepreg structure design and preparation process control, the prepreg meets the requirements of a subsequent slitting process and an RTM forming process, and is convenient to store and transport.

The invention discloses a laser-assisted nano-particle preparation method, and an apparatus thereof, and belongs to the nano-material preparation field. The method comprises the following steps: a gaseous precursor is introduced into a plasma generating device and is activated by the plasma generating device, and the obtained activated gaseous precursor enters a reaction chamber; and laser beams emitted by a laser generating device pass are gathered through a lens on the wall of the reaction chamber, the gathered laser beams enter the reaction chamber and heat the activated gaseous precursor in the reaction chamber to crack the activated gaseous precursor in order to obtain active nano-particles, and the active nano-particles are collected by a collector. The nano-particle preparation method and the apparatus have the advantages of substantial reduction of the production cost, simple apparatus and good technological stability; and the prepared nano-particles have the advantages of high purity, good stability, uniform morphological particle size, high quality reliability and high yield.

The invention relates to a method for eliminating the brazing blockage of a tube-seat ring-shaped workpiece of a stainless steel sandwich structure. The method comprises the following steps: measuring and recording the axial distance L1 between the inner-wall large-end ring-shaped groove center and the large-end surface; marking out an outer-wall drilling position line on the outer-wall outer surface according to the axial size L1-L2 with the outer-wall large-end surface as a reference, and carrying out drilling with the position line as a reference; carrying out seal welding on the open end of a tube seat by the adoption of manual argon arc welding, and grinding the welded open end to be level; welding the tube seat to the outer-wall drilling part, and sawing the closed end of the tube seat so as to turn the tube seat into an open state; electroplating nickel on the outer-wall inner surface and the inner-wall outer surface, and and carrying out spot welding on the inner-wall rib surface by using a brazing material; pressing the inner and outer walls, and carrying out seal welding on the large and small ends through manual argon arc welding; and carrying out brazing on the inner and outer walls, and carrying out X-ray inspection. Through the method, the brazing blockage can be eliminated; the adoption of a mechanical method for blockage elimination as well as manual argon repair welding or repeated brazing can be avoided; the product production progress can be guaranteed; the production cost can be reduced; and the product quality reliability can be improved.

The invention provides a PC (Personal Computer) sound card testing method, which comprises the following steps: combining, by a server, a generated single-track to-be-tested character audio file, a single-track to-be-tested tone audio file and a single-track to-be-tested volume audio file into a multi-track to-be-tested audio file, and sending the multi-track to-be-tested audio file to a PC; receiving an audio test file under the conditions of different volumes and different timbres, which is obtained by sequentially carrying out splitting restoration, timbre volume information identification and single-track to-be-tested character audio file playing and recording through a PC (Personal Computer), and then splitting the audio test file; and comparing the character test information with the to-be-tested character information, the timbre test information with the to-be-tested timbre information and the volume test information with the to-be-tested volume information respectively. The invention further provides a PC sound card testing device and system; the accuracy and reliability of PC sound card testing can be improved, and the testing efficiency of the PC sound card under the conditions of different volumes and different timbres can be further improved.

The invention discloses a paper advance mechanism of a transverse cutting machine, comprising a power plant and a conveying plant, wherein the power plant and the conveying plant are arranged on a rack; the power plant comprises a main power plant and an assistant power plant; the conveying plant comprises a feed roller and a rubber compression roller, wherein the feed roller is arranged above the rubber compression roller; the main power plant is characterized in that a servo motor is connected with the rubber compression roller by a synchronous wheel; the assistant power plant is a cylinder which is connected with the feed roller; and the rubber compression roller is provided with gumming paper. The paper advance mechanism of a transverse cutting machine adopts a drum convey structure and a servo motor for main transmission; meanwhile, a circular arc synchronous belt is used for transmission to improve the accuracy for transmitting products; the gumming paper is arranged above a lower compression roller to prevent dust in a manufacturing shop from adhering on glue; and the product quality has high reliability.