103results about How to "Reduce finishing" patented technology

A spiral-toothed gear is provided with a toothed ring (2) formed by extrusion coating a basic body (1) with a plastic. The spiral-toothed gear provides a connection between the basic body (1) and the toothed ring (2), whose strength makes possible the transmission of high torques in a reliable manner. The basic body (1) of the spiral-toothed gear has a flange with a disk-shaped area (1′) that is extrusion coated with the plastic toothed ring (2). The area (1″) of reduced diameter adjoining area (1′) forms a hub for mounting the spiral-toothed gear on a shaft in such a way that it rotates in unison. The area (1′) of the flange has, axially on both sides, a plurality of recesses (3, 3′) each, which are arranged distributed on its circumference, extend primarily in the axial direction but do not pass through area (1′). The recesses (3, 3′) are of a dovetail design, so that sections (4, 4′) of the outer circumference of area (1′), which are left in place between them, are undercut by the edges of the recesses (3, 3′), which said edges extend in the axial direction.

The invention relates to a method for preparing a nano compound diamond-like carbon coating, which is realized in a way that: glow discharge is produced by using a medium-frequency magnetic-control sputtering target; argon and excessive hydrocarbon gases are introduced, so that the metal on the target surface reacts with the hydrocarbon gases to produce metallic carbides; when the argon ions bombard the target surface, the target surface sputters the metallic carbides; strong plasma produced by the glow discharge of the target surface ionize the hydrocarbon gases, so that the hydrocarbon gases produce highly-ionized carbon ions; and the carbides sputtered from the target surface and the highly-ionized carbon ions produced from the hydrocarbon gases form a high-hardness carbide-doped nano compound diamond-like carbon coating on a workpiece surface. The coating prepared by the invention has the characteristics of high hardness, strong adhesive force, high growth speed, high production efficiency, low depositing temperature, low production cost, simple equipment structure and the like; and diamond-like carbon coatings with different thicknesses can be prepared on hard alloy, high-speed steel and various other workpieces.

The invention discloses a field rock mass poisson ratio test method. The method comprises the steps of firstly digging a test flat hole in a mountain, drilling a cylindrical test piece on bedrock on the bottom surface of the test flat hole by utilizing a hollow drill bit, and symmetrically perforating test holes in the bottom of an annular groove at the periphery of the test piece; sleeving the test piece with an elastic steel lantern ring provided with a steel contact and a strain plate, connecting a strain plate test line and a resistance strain gauge, and calculating transverse deformation of the test piece by virtue of test; fixing the top surface of the test piece together with a test flat hole top plate sequentially through a pressure plate, a jack, a reducing connector steel plate, a combined force transfer rod and a hinge anchor, installing measuring points in bolt holes in two sides of the pressure plate and in the test holes in the bottom of the annular groove, and installing a dial indicator above the measuring point; calculating vertical deformation of the test piece after the load test; then calculating a corresponding transverse strain value and a vertical strain value, and calculating the poisson ratio of the test piece according to the transverse strain value and the vertical strain value. The field rock mass poisson ratio test method has advantages that the implementation method is simple and rapid, the measurement data is accurate and reliable, and the real condition of the rock mass can be comprehensively reflected.

The invention relates to an efficient sorting method which comprises the following steps: displaying pre-sorted cargo information comprising pre-delivery warehouse information; if the received current sorted cargo information is matched with the pre-sorted cargo information, driving indicating equipment of a warehouse position corresponding to the pre-delivery warehouse information to work to indicate the warehouse position of the current sorted cargo according to the pre-delivery warehouse information in the pre-sorted cargo information. The problems that the existing sorting process is complicated and has a long period are solved. In the cargo sorting process, a specific indication can be given to an operator, so that the sorting error is prevented and the sorting efficiency is improved. The sorted commodities are photoelectrically indicated, so that the stacking and arrangement process of cargo is shortened. Therefore, the sorting time is shortened, the manual taking step is simplified, the possibility of deterioration of fresh commodities, especially for products of which the quality is greatly influenced by temperature, is reduced, and the timely sorting of cargo is ensured, and thus the logistics period and the transaction validity are improved.

The invention discloses a production technology of an anti-static fabric. An electric conduction wire and a polyester cotton yarn are double-twisted to obtain a conductive yarn, the conductive yarn iswoven at intervals to obtain an anti-static gray fabric, and through singeing, shape setting and dyeing, the dyed gray fabric is obtained; through anti-static after-finishing of an anti-static finishing solution, two-time soaking and two-time rolling, the anti-static gray fabric is obtained; finally, through antibacterial anti-mite finishing of an antibacterial anti-mite finishing agent, two-timesoaking and two-time rolling, the anti-static fabric is obtained. The prepared anti-static fabric has good anti-static performance, can achieve moisture absorption and air permeation, has antibacterial and anti-mite performance and is good in comfort and particularly suitable for being used as a fabric of outdoor sports wear and climbing wear. The point-to-point resistance of the anti-static fabric reaches 2.8*1,010 omega, the rate of resisting staphylococcus aureus reaches 89.7%, the rate of resisting escherichia coli reaches 86.8%, the rate of resisting candida albicans reaches 73.6%, the water absorption rate reaches 106%, and the amount of water vapor transmission reaches 8,125 g / m<2>.24 h.

The present invention provides a methodology, apparatus and system for resampling digital data utilizing a Fourier series based interpolation engine 104. A quick means to up-sample or down-sample data is provided without requiring computationally intensive processing. This is accomplished by utilizing low order coefficients of terms of a complete Fourier series expansion for a continuous signal. The summation of the expansion is limited to input samples immediately adjacent in time to the desired output. Generally speaking, the output is normally required to be a constant sampling rate, therefore, the input and output rates are related by an integer ratio. This ratio can be greater or smaller than one, providing up-sampling or down-sampling as appropriate. By employing the present invention, a DSP engine can be constructed that is adjustable to any ratio of sampling rates in a computationally efficient manner with low RMS error while preserving convolution through the resampling process.

The invention discloses an intelligent fed-paper-money counting and sorting machine, which comprises a frame, a bill input mechanism and a bill sorting mechanism, wherein the bill input mechanism and the bill sorting mechanism are mounted on the frame; the bill input mechanism comprises a bill input plate, a rocking plate and a bill output plate; the bill input plate and the bill output plate are fixedly arranged on the frame; the rocking plate is connected between an outlet end of the bill input plate and an inlet end of the bill output plate; an outlet end of the rocking plate is connected onto the frame in a hinging manner; the bottom of an inlet end of the rocking plate is connected with a rocking mechanism; the rocking mechanism drives the rocking plate to move up and down along a hinge joint; multiple groups of rocking plate bill twiddling wheel sets are arranged above the rocking plate; when the inlet end of the rocking plate rises to a highest position, the rocking plate is in contact with the rocking plate bill twiddling wheel sets; multiple bill output bill twiddling wheel sets are mounted above the bill output plate; the outlet end of the bill output plate is provided with bill output wheels; paper money is guaranteed to be capable of being conveyed from the outlet end of the bill input plate to the bill output wheels at the outlet end of the bill output plate by intervals between every two adjacent rocking plate bill twiddling wheel sets, an interval among the rocking plate bill twiddling wheel sets and the bill output bill twiddling wheel sets and intervals between every two adjacent bill output bill twiddling wheel sets. By using the intelligent fed-paper-money counting and sorting machine, the pretreatment can be carried out on wrinkled and superimposed paper money; the process of manually collecting and arranging the paper money is greatly saved; the labor cost is saved.

The invention discloses a rubber roller belt sander, wherein a long strip-shaped support frame is positioned on a base; a driving wheel can be rotationally positioned at one end of the support frame; a driven wheel can be rotationally positioned at the other end of the support frame; the driving wheel and the driven wheel are arrayed in parallel; a ring-shaped abrasive belt is arranged on the driving wheel and the driven wheel in a sleeving manner; the driving wheel is driven by a motor to rotate; a driven shaft on the driven wheel is inserted in a shaft sleeve at the other end of the support frame; and the driven shaft can be driven by a deviation rectifying adjusting device on the shaft sleeve to rotate around a shaft perpendicular to the axial direction of the driven shaft and the length direction of the ring-shaped abrasive belt. According to the rubber roller belt sander, an adjustment of the axis parallelism of the driving wheel and the driven wheel can be realized, so that the stability of the operation of the abrasive belt can be realized; the tension adjustment of the ring-shaped abrasive belt is convenient, so that the ring-shaped abrasive belt can be adapted to processing of different materials, and the replacement of the ring-shaped abrasive belt is facilitated, the rotation of the whole ring-shaped abrasive belt around an axial line of the driving wheel can be realized, the contact angle of the abrasive belt and a workpiece can be changed, the contact position of the abrasive belt and the workpiece can be changed, and different processing demands can be met.

The invention provides a method for preparing a water-repellent textile. An electron radiation technology is adopted, a reactive organic silicon compound is taken as a water repellent, and the textile is subjected to water-repellent treatment. According to the main technical scheme, the method comprises the following steps: padding the textile in a water-repellent or a coating water repellent, radiating, drying or baking, performing after-treatment, thereby obtaining the water-repellent textile. The water-repellent textile prepared by the method disclosed by the invention is excellent in water-repellent performance and can be reacted at normal temperature, the grafting ratio is greatly improved, and the method has the advantages of simple processing technology, simplicity in control and low energy consumption and is worthy of popularization and application.

The invention discloses a method for preparing a personalized degradable metal stent or an internal fixation device based on 3D printing. The method comprises the following steps: (1) obtaining data of corresponding size parameters of a lesion in a human body through a QCA technology, and obtaining a structure of a blood vessel stent, other metal stents or the internal fixation device by three-dimensional reconstruction; (2) establishing a 3D model of a wax mold prototype of the blood vessel stent, other metal stents or the internal fixation device, and decomposing the 3D model into a series of 2D sheet models; (3) using a 3D printing technology to make the wax mold prototype; (4) leading gypsum into the wax mold prototype for shaping; after the gypsum is hardened, baking the gypsum to completely vaporize and evaporate the wax mold prototype, and then casting alloy melt; and after the casting is completed, breaking a shell to obtain the metal stent or the internal fixation device. According to the method, personalized customization can be performed according to a patient's diseased blood vessel, and the obtained metal stent or the internal fixation device is degradable, high in precision and good in mechanical properties and corrosion performance.

The invention relates to a control method of an electric pulse spark discharge gap. The control method is used for an electrosparking machine tool to keep a proper discharge gap between an electrode and a workpiece. The control method is characterized in that detection pulses are inserted into work pulse sets at intervals, the voltage values of work pulses are automatically adjusted through the detection pulses, the voltage values of the work pulses are matched with the workpiece feed speed, a spark discharge state is kept, the short circuit phenomenon is avoided, the probability of occurrence of the open circuit phenomenon is reduced, the machining efficiency and machining quality are improved, and meanwhile convenience of manually adjusting the cutting speed is eliminated. The short circuit current is detected in the period that the low-voltage detection pulses occur, electrode wire damage can be avoided, arcing can be avoided when the workpiece leaves the electrode, and the smoothness of the workpiece is prevented from being reduced.

The invention relates to an adjustable multipurpose three-phase test set and belongs to the field of testing. The adjustable multipurpose three-phase test set comprises a test bar; the front end of the test bar is provided with a left phase contact probe, a middle phase contact probe and a right contact probe; the left, middle and right phase contact probes are correspondingly connected with three signal input ends of a three-phase tester; the three-phase tester is fixed to a handle of the test bar; two sides of a transverse bar at the front end of the test bar are provided with two rotary spring clamps, respectively; the left and right phase contact probes are fixed to the rotary spring clamps on two sides of the transverse bar, respectively; the middle phase contact probe is fixed to the transverse bar at the front end of the test bar through a spring. A measuring mode wherein three-phase measuring points are in contact at the same time is adopted, an operator contacts a live device fewer times, work is less dangerous for testing staff, interphase short circuit is avoided, the test set is suitable for test objects having different interphase distances, work preparation time is shortened, and testing speed can be increased. The test set is widely applicable to the field of three-phase power signal testing for low-voltage power supply systems.

The invention provides a wire clamp, a circuit board assembly and electronic equipment. The wire clamp is used for clamping a first conductive ring of a first coaxial line and a second conductive ringof a second coaxial line. The wire clamp comprises a first abutting part and a second abutting part which are connected with each other, and a first clamping part and a second clamping part which areconnected with each other, wherein the first abutting part and the second abutting part abut against two sides of the first conducting ring respectively, the first conducting ring is grounded throughthe first abutting part and / or the second abutting part, the first clamping part and the second clamping part are clamped on two sides of the second conducting ring, and the second conducting ring isgrounded through the first clamping part and / or the second clamping part. The wire clamp is advantaged in that a plurality of coaxial wires can be fixed, a grounding problem of a plurality of coaxialwires is further solved, and the space utilization rate of a circuit board can further be effectively improved.

The invention provides a double-layer PVC (Poly Vinyl Chloride) composite material and a preparation method thereof. The composite material comprises an upper layer and a bottom layer which are formed by up-down co-extrusion. The upper layer comprises the following components in mass percent of 13-17% of PET (Poly Ethylene Terephthalate) resin, 2-4% of plasticizer, 4.5-5.5% of aluminum silver powder, 0.9-1.1% of stabilizing agent, 0.3-1.5% of lubricating agent and residual amount of polyvinyl chloride resin; the lower layer comprises the following components in mass percent of 2-4% of the plasticizer, 0.3-1% of the stabilizing agent, 25-35% of filling agent and residual amount of the polyvinyl chloride resin. The upper layer of the double-layer PVC composite material provided by the invention comprises the aluminum silver powder, and the aluminum silver powder is applicable to filling pits on the surface of the upper layer, so that the surface of the upper layer has high fineness and brightness to satisfy the decorating effect on the surface of the household appliances. The bottom layer is a hard PVC layer and has preferable mechanical properties and product stability, so that the rigid requirements of the entire product can be met.

The invention provides a PVC (Poly Vinyl Chloride) composite material and a preparation method thereof. The composite material comprises an upper layer and a bottom layer which are subjected to up-and-down co-extrusion forming; the upper layer comprises the following components in percentage by mass: 15 percent of PET (polyethylene glycol terephthalate) resin, 3 percent of plasticizer, 5 percent of aluminium silver powder, 1 percent of stabilizer, 0.3 to 1.5 percent of lubricant and the balance of PVC resin; and the bottom layer comprises the following components in percentage by mass: 3 percent of plasticizer, 0.3 to 1 percent of stabilizer, 0.3 to 1 percent of lubricant, 24 to 36 percent of filler and the balance of PVC resin. The upper layer of the double-layer PVC composite material provided by the invention comprises the aluminium silver powder, and the aluminium silver powder is suitable for filling concave pits on the surface of the upper layer, so that the surface of the upper layer has high smooth finish and brightness to meet the surface decoration effect of household appliance equipment; and the bottom layer is a hard PVC layer, has good mechanical performance and product stability, and is suitable for meeting the integral rigidity requirement of the product.

The invention puts forward a hospital nursing quality assessment management system and method. The system comprises a uniform user platform, a nursing quality assessment platform and a data center analysis platform, wherein the uniform user platform, the nursing quality assessment platform and the data center analysis platform are successively connected through an intranet special line. The system has the advantages that the system is established on the uniform user platform of the hospital and can be fused with other nursing systems to realize data sharing. By use of the system, head nurses can get rid of complex manual processing ways, and finish each piece of assessment work in the system; mobile equipment is adopted and is combined with patient feedback opinions to carry out multiaspect real-time assessment, a nursing department can finish assessment in the system, the grading accounting of each endemic area is automatically finished, a final analysis statement is combined to form a cyclic operation system of a nursing quality improvement measure, and nursing quality can be continuously improved.

The invention discloses a mouth mould and core mould structure of a plastics extrusion mould. The mouth mould and core mould structure comprises a mouth mould (1) and a core mould (2), wherein the mouth mould (1) is shaped like a hollow cylinder, the core mould (2) and the mouth mould (1) are coaxially arranged, and the core mould (2) is positioned in the mouth mould (1), a first annular channel (17) in which a fluid flows is formed on the inner surface of the mouth mould (1) and the outer surface of the core mould (2), meanwhile, a mouth mould insert (3) is arranged on the outlet end of the mouth mould along a direction parallel to the axial line of the mouth mould, a core mould insert (4) is arranged on the outlet end of the core mould along a direction parallel to the axial line of the mouth mould, and a second annular channel (18) in which the fluid flows is formed between the mouth mould insert (3) and the core mould insert (4), and the mouth mould insert (3) and the core mould insert (4) are made of polytetrafluoroethylene materials. By using the mouth mould and core mould structure of the plastics extrusion mould, the glossiness and the flatness of the surfaces of the inner wall and the outer wall of a plastics pipe can be greatly improved.

The invention discloses a goods intelligent sorting management control system and a realization method thereof. The management control system structurally mainly consists of a goods conveying system,a scanning identification system, a mechanical hand system, a length measurement system and a locating system, wherein the scanning identification system comprises an information code scanning instrument, an information code comparison system, a database system and a sorting management control system; the mechanical hand system comprises a mechanical hand for goods grabbing, and a pressure sensor;the sorting management control system is in information connection with the mechanical hand system, and performs management control on an operation process of the mechanical hand; and the locating system is in charge of performing locating operation during goods grabbing. The management control system has the characteristics of time and labor saving, simple use, good functionality and high practicality.

The invention provides a motor circuit board, comprising a first circuit board and a second circuit board, wherein a first bonding pad is arranged on a peripheral side of each first connection hole in a first circuit board body, and a plurality of first bonding pads are connected by a copper foil circuit arranged on the first circuit board body; second bonding pads are arranged on the peripheral sides of second connection holes and of power line connection holes in a second circuit board body respectively; a plurality of second bonding pads are connected by the copper foil circuits arranged on the second circuit board body; a group of bridge wires are welded between the first bonding pads and the second bonding pads, the other groups of bridge wires are respectively welded between two first bonding pads or two second bonding pads, and the copper foil circuits on the first circuit board body and the second circuit board body connect a plurality of bridge wires. The invention further provides a stator structure and a plastic package motor. According to the motor circuit board, the stator structure and the plastic package motor provided by the invention, the circuit connection process of the bridge wires of coil windings is simplified, and the assembly efficiency of the stator structure is improved.

The invention discloses a permanent magnetic drilling machine which comprises a horizontally arranged base, a rack mechanism and a permanent magnetic drilling rig device, wherein the rack mechanism comprises a column, a tank body and a tank sliding mechanism; the permanent magnetic drilling rig device comprises a rotation driving mechanism and a permanent magnetic vibration mechanism; the rotation driving mechanism is connected with the permanent magnetic vibration mechanism in a transmission manner; the permanent magnetic vibration mechanism comprises a main shaft used for mounting a cutter and connected with the rotation driving mechanism in a transmission manner, a permanent magnetic mechanism mounted on the main shaft and used for driving the main shaft to vibrate up and down, and a telescopic movement mechanism sleeving the main shaft; a vibration amplitude adjusting mechanism for adjusting a vibration amplitude of the main shaft is arranged on the tank body. The permanent magnetic drilling machine provided by the invention is simple in structure, reasonable in design and high in reliability, enables the cutter to be in periodical contact with a workpiece to be drilled, increases instantaneous drilling force, reduces drilling temperature, shortens drilling time, and improves surface finish and processing precision of the workpiece to be drilled.

The present invention relates to plastic diaphragm forming process and equipment. During the process, plastic material is first heated and plasticized in injection molding machine and then injected into the hot flow channel of the plastic diaphragm forming mold and sprayed via the heating nozzle into mold cavity, and the plastic diaphragm is finally taken out after cooling, setting and mold opening. The structure of hot injection flow channel ensures the plasticized material to fill the different parts of the mold cavity and this makes it possible to make thin diaphragm with very large area. The combined design of hot flow channel forming mold and the injection part makes the present invention is superior to available technology, especially being suitable for producing thin-wall plastic diaphragm.

The invention relates to a novel pickling solution for pretreating the surfaces of aluminum and aluminum alloy. The pickling solution comprises 7-50mL / L concentrated nitric acid, 50-200mL / L hydrogen peroxide and the balance of water. The novel pickling solution for pretreating the surfaces of aluminum and aluminum alloy is suitable for various kinds of aluminum and aluminum alloy and can be used for better solving the problem that an alkali washing solution and a pickling solution are left in screw holes after the surfaces of multi-blind screw hole parts are pretreated. After being verified for a long term, the pickling solution is relatively stable, suitable for large-scale production, free of any quality problem in an application period and capable of ensuring the success of a batch production task.

The invention relates to a method for manufacturing a civil high-grade anti-theft door plank. The method comprises the steps of (1) obtaining a continuous casting slab by molten iron desulphurization, converter smelting, RH vacuum treatment and continuous casting for forming blanks; heating the continuous casting slab; carrying out high-pressure water descaling, rough rolling, finish rolling, laminar cooling and reeling on the heated slab after discharging from a furnace; and (2) uncoiling, pickling and trimming a hot rolled coil obtained in the step (1), rolling the rolled coil into cold-strip steel by a reversing cold rolling machine with a single frame, carrying out hood annealing treatment after degreasing, and finally carrying out smoothing, finishing and electrostatic oiling to obtain the civil high-grade anti-theft door plank. The method disclosed by the invention is stable to operate, convenient to use, free of new introduction of any production equipment, and free of increase the technological process of production; the production cost is not increased; the defect that a closed-loop vortex wave is generated when the surface of an ultra-low carbon cold-roll steel sheet is close to the edge part of the steel sheet can be effectively overcome; and the demand of the civil high-grade anti-theft door plank on high surface quality is met.

Disclosed is a control method for an electric spark pulse power supply device. The electric spark pulse power supply device comprises a pulse signal generator, a power amplifier and a current detector, wherein the pulse signal generator is composed of a single chip microcomputer and a D / A converter, the power amplifier is used for power amplifying of pulse signal, and the current detector is used for detecting output current of the power amplifier. The control method is realized through an internal program of the single chip microcomputer. The control method comprises the steps that probe pulses are inserted into a work pulse group at intervals; and voltage values of work pulses are adjusted automatically through the probe pulses to enable the voltage values of the work pulses to be matched with the speed of workpiece feeding. A state of spark discharge is kept, so that the phenomenon of short circuit is avoided, the probability of open circuit phenomenon occurring is reduced, machining efficiency and the machining quality are improved, and meanwhile, the inconvenience that adjusting of the cutting speed relies on manual work is removed. The short circuit is detected during occurrence of a low voltage detection pulse, so that damage to an electrode wire is avoided, and when a workpiece leaves an electrode, arcing is prevented, and decreasing of the finish degree of the workpiece is avoided.

The invention relates to a pulsed power supply for an electric spark machine tool. The pulsed power supply for the electric spark machine tool comprises a pulse signal forming circuit, a power amplifier for carrying out power amplification on a pulse signal, and a current detecting circuit for detecting output current of the power amplifier. The pulse signal forming circuit comprises a single-chip microcomputer IC1 and a D / A (Digital-to-Analog) converter. The single-chip microcomputer is connected with an input port of the D / A converter; the output end of the D / A converter is connected with the input end of the power amplifier; an electrode DJ as a load and a workpiece GJ are connected into an output circuit of the power amplifier; a voltage value of a discharge pulse is automatically controlled through the single-chip microcomputer, so that the voltage of the discharge pulse outputted by a pulsed power supply is matched with the cutting speed, the normal spark discharge is maintained, the machining efficiency and the machining quality are improved, and meanwhile, the inconvenience caused by adjusting the cutting speed through manual work is avoided; and the current detecting circuit detects short-circuit current when a low-voltage detecting pulse occurs, so that a wire electrode can be prevented from being damaged, the occurrence of arc discharge can be prevented when the workpiece is deviated from an electrode, and the reduction of the finish degree of the workpiece is avoided.

The invention discloses a welding method for an vehicle door inner plate assembly, and belongs to the technical field of automobile welding. The welding method comprises the following steps that S1, afirst welding procedure is carried out, specifically, laser welding is carried out on the inner surface of a vehicle door inner plate, and the surplus height of seams of laser welding form protrusions with the height of L on the inner surface of the vehicle door inner plate; S2, the vehicle door inner plate and a reinforcing plate are assembled in an attached mode, and assembly gaps are generatedthrough the protrusions when the vehicle door inner plate and the reinforcing plate are assembled in an attached mode; S3, a second welding procedure is carried out, specifically, the vehicle door inner plate and the reinforcing plate are welded through laser welding; and in the step S1, the back face of the vehicle door inner plate is padded with a copper plate so as to absorb redundant weldingenergy. According to the welding method, by padding the back face of the vehicle door inner plate with the copper plate, the redundant welding energy in the welding process is absorbed, so that the situation that the welding seam protrusions are generated on the back face of the vehicle door inner plate to affect the the appearance of a vehicle door is avoided.

The invention relates to a method for producing a plain bearing bush (4) whereby a flat supporting metal layer (8) is provided, an anti-friction layer (9) is provided on this supporting metal layer (8) to produce a flat composite material, and the flat composite material is then rolled into the shape of the plain bearing bush (4) in such a way that the supporting metal layer (8) in the plain bearing bush (4) is disposed radially underneath the anti-friction layer (9). The invention further relates to a plain bearing bush (4) produced by this method.

The invention discloses a multipurpose three-phase test device, and belongs to the field of measuring devices. The multipurpose three-phase test device is provided with a test bar. A left-phase contact probe, a middle-phase contact probe and a right-phase contact probe are arranged at the front end of the test bar and are respectively correspondingly connected with three signal input ends of a three-phase tester by wires; two telescopic sleeves are respectively arranged at two edges of a transverse rod at the front end of the test bar; the left-phase contact probe and the right-phase contact probe are respectively fixed onto the telescopic sleeves; the middle-phase contact probe is fixed onto a middle fixing portion of the transverse rod; the left-phase contact probe and the right-phase contact probe are fixed onto the transverse rod at the front end of the test bar, and the middle-phase contact probe is fixed onto the transverse rod at the front end of the test bar by the aid of a spring; the three-phase tester is fixed onto a handheld rod of the test bar. The multipurpose three-phase test device has the advantages that contact frequencies of operators and live equipment can be reduced owing to a three-phase test point simultaneous contact measurement mode, accordingly, work risks can be reduced for test persons, inter-phase short-circuit accidents can be prevented, and the multipurpose three-phase test device is beneficial to increasing the speeds of integral test work; the multipurpose three-phase test device can be widely used in the fields of three-phase electric signal tests for low-voltage power supply systems.

The invention relates to a full-automatic film laminating machine, and belongs to the technical field of packaging box production equipment, the full-automatic film laminating machine comprises a film laminating machine mechanism, a material receiving box is arranged at the paper outlet end of the film laminating machine mechanism, a flow guide plate is rotatably arranged on the inner wall, close to the film laminating machine mechanism, of the material receiving box, a bearing plate is arranged on the bottom wall of the material receiving box, and a plurality of limiting blocks are arranged on the bearing plate; a containing groove used for containing paper is formed between every two adjacent limiting blocks, and a first driving piece used for driving the flow guide plates to rotate and enabling the paper to enter the containing grooves is arranged in the material collecting box. A positioning plate is obliquely arranged on the material receiving box, and the paper entering the storage groove leans against the bearing plate; the limiting block is arranged on the bearing plate in a sliding mode, and a second driving piece used for driving the limiting block to slide and storing the limiting block in the bearing plate is arranged on the bearing plate; a plurality of integrating plates are arranged in the material collecting box in a sliding mode, and a driving device enabling the paper to be in a vertical state and enabling the stacked paper to be arranged in a rectangular shape is arranged on the bearing plate. The paper collecting device has the effect of conveniently collecting paper.

The invention discloses a multiple-output controlled valve, which is characterized by the following: closing valve mouth with spring force on back of gasket; opening gap between arcuate boss on spool and lower dent of cam at the state of closing valve mouth; choosing rubber material or other plastic rubber or like soften material gasket as element to close the valve mouth; decreasing fineness and concentricity of the valve mouth greatly. This invention possesses small motor power consumption and low preparing cost.