379results about How to "Reduce the likelihood of breakage" patented technology

The invention provides a synchronous spraying device for a large machine. The synchronous spraying device comprises a plurality of movable bases (1), wherein a six-axis joint robot is installed on each movable base (1), and a spray gun is installed at the tail end of each six-axis joint robot; a steel plate (2) is arranged at the front end of each movable base (1), a piston cylinder (3) is further horizontally arranged at the front end of each movable base (1), the outer end of a piston rod of each piston cylinder (3) is level with the outer side of the corresponding steel plate (2) while retracting, and an electrically-controlled magnetic attraction device (4) is arranged at the rear end of each movable base (1); and the movable bases (1) attract the electrically-controlled magnetic attraction devices (4) through the steel plates (2) and are sequentially connected in series to form an integrated movable platform. According to the synchronous spraying device provided by the invention, the integrated movable platform formed by sequentially connecting the plurality of movable bases (1) in series is provided, and synchronous spraying of all the six-axis joint robots can be realized; and moreover, the problem of interference is avoided, and the consistency of the spraying quality of parts of the large machine can be ensured.

The invention relates to a preparation method of addition type liquid fluorinated silicone rubber. D3F, ViD4 and MM with the purity larger than 99.5% are adopted as raw materials and evenly mixed according to a certain ratio, and vinyl fluorosilicone oil is obtained; the vinyl fluorosilicone oil is used as base gum, a reinforcement agent, a cross-linking agent and a catalyst are added in the vinyl fluorosilicone oil, kneading, grinding, tabletting and other technologies are performed, and the liquid fluorinated silicone rubber (FSR) is obtained; the insulation performance, hydrophobic property, the high-temperature resistance and the like of the LSR are better than that of liquid silicone rubber (LSR) with the same technology and formula. The preparation method is short in production period, the product has the good heat tear resistance, demolding is convenient, various machining ways of mold pressing, extrusion, injection molding and the like can be achieved, and automatic production materials can be achieved.

The invention provides ultra-clean earth steel and an occluded foreign substance modification control method. 10-200 ppm of rare earth elements are included in the steel, and 50% or more occluded foreign substances in the steel are dispersed RE-oxygen-sulfide with the average equivalent diameter Dmean ranging from 1 micrometer to 5 micrometers in a spherical shape or a spheroidal shape or a granular shape. According to the method, at least 80%, preferably at least 90%, of Al2O3 occluded foreign substances in the steel are modified into RE-oxygen-sulfide, compared with steel with the same components without rare earth, the total amount of the occluded foreign substances in the steel is reduced by 18% or higher, the cracking probability caused by occluded foreign substances such as Al2O3 intraditional pure steel is reduced, the mechanical and chemical performance such as the fatigue life of the steel is remarkably improved, precise control over the modification type, distribution and dimension of the occluded foreign substances in the steel is achieved, and the method is suitable for researching and producing of high-performance steel in more varieties.

The invention discloses a carbon fiber composite. The carbon fiber composite comprises a metal inner layer, a local reinforcement layer, a reinforcement layer and an outer protection layer in sequence, wherein the reinforcement layer is formed by preferably winding large-tow carbon fibers. The invention also discloses a preparation method of the carbon fiber composite. The invention further discloses a tank prepared from the carbon fiber composite. The tank can be used for carrying liquid, powder, gases, pulp and other substances. The carbon fiber composite and the tank have the beneficial effects that compared with the traditional metal tanks, the tank prepared from the carbon fiber composite is lightened by more than 50%; the carrying capacity of a tank car can be obviously improved, and fuel consumption and carbon dioxide emission can be reduced; and the tank has the double effects of increasing the operating profits and reducing the environmental pollution.

The embodiment of the invention provides an electronic expansion valve, comprising a magnetic rotor, a stop rod and a screw rod, wherein the axis of the screw rod is coincided with the axis of the magnetic rotor. The electronic expansion valve further comprises a connecting plate which is fixedly arranged in a through hole of the magnetic rotor, a first fixing hole is arranged at the center of the connecting plate, and the upper end part of the screw rod is fixedly arranged in the first fixing hole; a second fixing hole for fixing the stop rod is arranged on the connecting plate, and the lower end part of the stop rod is fixedly arranged in the second fixing hole; and the magnetic rotor drives the screw rod and the stop rod to rotate by the connecting plate. The stop rod, the screw rod and the magnetic rotor are firmly connected by the connecting plate which is fixedly arranged on the magnetic rotor, and the magnetic rotor is not influenced by the radial force of the connecting plate in the process that the stop rod and the screw rod are arranged on the magnetic rotor by the connecting plate, so as to reduce the possibility of cracking of the magnetic rotor owning to high radial force and improve the reliability of the electronic expansion valve.

The invention discloses a safe slow descent control and loading method applied to a cement pipeline. The method is characterized in that a clamping mechanism is connected on a discharging end of a carriage in a clamped mode, one end of a low-position sliding mechanism in the length direction is connected with the clamping mechanism, and the other end of the low-position sliding mechanism extends to the ground; when the clamping mechanism is installed, the opening port of a clamping frame is matched with an unloading end of the carriage, and the top of the unloading end of the carriage is in contact with the top of the opening port of the clamping frame; at the moment, a bolt is rotated, and a contact pressure is enabled to be generated between the big face facing upwards of the clamping plate and the bottom of the unloading end of the carriage, a contact pressure is generated between the top of the unloading end of the carriage and the top of the opening port of the clamping frame, a slow descent control rope winds round a rope winding groove of a rope winding cylinder and is tied on a hook of a rope tying mechanism in a gentle tying mode after being guided by the rope winding groove, and whether a slow descent control device and a slow lifting control device are intact or not are checked.

The invention relates to a novel casting technique of a semitrailer brake drum. The novel casting technique of the semitrailer brake drum comprises the following steps of: manufacturing an inner mold shell and a pouring cup; regulating the temperature of an iron mold, covering with sands, and modeling; checking by turning over a mold; assembling a shell mold; filling iron shots; pouring and cooling; turning over the mold, discharging elements, assembling the elements, and recovering; carrying out magnetic separation, and screening; dedusting and cleaning. No deformation of the brake drum is ensured fully; the steel shots are filled in an internal mold sand shell; poured steel liquids generate pressure inward; firstly, because of the 'arch bridge principle', the internal mold sand shell has great support force; and then the steel shots also can block the pressure by steel liquids, and the internal mold sand shell cannot be cracked or deformed absolutely. Before cast elements are condensed and contracted, the internal mold sand shell is scattered, the filled steel shots are at the scattered state, the deformability of the cast elements in contraction is ensured fully, so that free contraction instead of hindered contraction is formed; a bottom-pouring-type pouring mode is adopted, air is discharged smoothly; the cracking possibility at the crossed part is reduced; air holes of the cast elements caused by dampness of a sand mold are prevented; the novel casting technique of the semitrailer brake drum is an environment-friendly casting technique.

The embodiment of the invention provides a touch display panel and a touch display device, which relate to the technical field of display and are used for improving the bending performance of touch electrodes and further improving the working stability of the touch display panel. The touch display panel comprises a substrate, wherein the substrate comprises a display region and a non-display region, the display region comprises a bent region, the non-display region comprises an upper non-display region and a lower non-display region, and the lower non-display region is provided with a chip binding region. The bending area is provided with touch electrodes, and each touch electrode comprises a plurality of touch electrode blocks. In one touch electrode, two adjacent touch electrode blocks are electrically connected through a connection part. The display area is provided with a plurality of first touch signal lines, and at least part of the touch electrodes are connected with the first touch signal lines. The lower non-display area is provided with a plurality of second touch signal lines one-to-one correspondingly connected with a plurality of first touch signal lines, and the second touch signal lines are also connected with the chip binding area. The touch display panel is used for realizing screen display.

The invention discloses a method for improving the position accuracy of a mold core of an integrated type ceramic mold, and belongs to the field of rapid costing based on stereo-lithography technologies. The method comprises the steps that (1) three-dimensional software is utilized to design a resin mold, and a resin mold prototype with a positioning hole is manufactured by utilizing a stereo-lithography method; (2) a ceramic fiber or a ceramic bar penetrates into the positioning hole according needs; (3) ceramic slurry is poured into the resin mold prototype of turbine blades through a gel casting method to obtain a mold blank; (4) vacuum freeze drying and sintering are carried out on the mold blank to obtain the integrated type ceramic mold of the turbine blades. The position accuracy of the mold core of the integrated type ceramic mold can be effectively improved through the vertically through or non-through mold core, and the method is reasonable in design, is easy and convenient to operate, greatly improves the manufacturing integrity and accuracy of the mold and is suitable for practical production.

The invention provides a high-linearity electromagnetic type semi-active vibration absorber. The high-linearity electromagnetic type semi-active vibration absorber comprises a magnetic conductive outer barrel, an upper end cover, a lower end cover, an armature and a central shaft, wherein the upper end cover and the lower end cover are mounted at the two ends of the magnetic conductive outer barrel correspondingly; and the armature and the central shaft are arranged in the magnetic conductive outer barrel. The inner surface of the magnetic conductive outer barrel and the outer surface of the armature are provided with gear rings. A first spring is arranged between the upper end of the armature and the upper end cover, and a second spring is arranged between the lower end of the armature and the lower end cover. The central shaft sequentially penetrates through the upper end cover and the armature from top to bottom and then is fixedly connected with the lower end cover through an inside hexagonal bolt. A linear bearing is arranged between the central shaft and the armature. A groove is formed in the middle of the armature. A coil is wound in the groove. A wire of the coil penetrates through a wire hole formed in the armature, then bypasses the central shaft, and extends out of the lower end cover along a wiring trough formed in the lower end cover. The vibration absorber has quite high linearity, and the linearity range of the vibration absorber is wider through achievement of high-linearity electromagnetic stiffness, so that the allowable stroke of the armature of the vibration absorber is increased.

A uniform velocity tube of flow rate transducer consists of high pressure sampling hole at flow receiving surface, low pressure sampling hole at side surface between flow receiving surface and flow departing surface which are built on tube wall of the uniform velocity tube . It features that the said tube section is prepared to be a bullet head form so fluid is splited along two side surfaces of said tube section formed as bullet head to make a flow coefficient relatively stable when fluid flows through the tube.

The invention discloses a pulling method crystal growth furnace. The pulling method crystal growth furnace is characterized by comprising a furnace body and a crucible (2), wherein the interior of the furnace body is hollow so as to form a furnace cavity (5), the crucible (2) is arranged at the center of the furnace cavity (5), and the crucible (2) is connected with a seed crystal rod (4) which is coaxially arranged in the furnace cavity (5) and used for growing crystals (3) in the crucible (2); and the pulling method crystal growth furnace is characterized in that the inner wall of the furnace cavity (2) at the upper part of the crucible (2) has a certain conicity and a round table cylinder structure is further formed. The growth furnace disclosed by the invention can effectively control the three-dimensional effect of flow and heat transfer in the pulling method furnace cavity, organize a relatively good temperature environment around the crystals and simultaneously form a relatively good temperature gradient at a solid-liquid interface in the growth process of the crystals. The novel furnace cavity structure can reduce the production of dislocation or rupture in the growth process of the crystals and improve the quality of the crystals.

The invention relates to an asynchronous machine with a stator or a cage rotor, wherein the cage rotor has a shaft (1) and a lamination stack (2) in which a plurality of rotor bars ( 3), the rotor bars are respectively inserted into the openings (10) of an end plate (9) at both ends of the lamination stack (2), and closed with a short-circuit ring (4), and the short-circuit ring makes all The ends of the rotor bars (3) on the cage rotor side are electrically conductively connected, wherein each end plate (9) has an annular protrusion which at least partially covers the short circuit in a form-fitting manner Outside the rings (4), each end plate (9) contains a part of the rotor bar (3) and a part of the shorting ring (4).

The invention discloses an intelligent damping pipe support hanger. The intelligent damping pipe support hanger comprises a support plate, a mounting assembly for fixing a pipe, a sliding assembly arranged on the support plate, at least two steel wire ropes and two diagonal support assemblies. The mounting assembly is arranged on the side wall of the support plate. One ends of the steel wire ropesare connected with the support plate, and the other ends of the steel wire ropes are connected with the wall body. One ends of the diagonal support assemblies are connected with the wall body, and the other ends of the diagonal support assemblies are connected with the support plate. The two diagonal support assemblies form support sets. The support sets are correspondingly arranged at the two ends of the support plate. When the pipe transports a large amount of liquid, the pipe vibrates, and the sliding assembly is used to drive the pipe to slide and buffer on the support plate; the vibration is transmitted to the wire ropes, and the vibration can be buffered because the wire ropes have good impact toughness; and the vibration is buffered by the diagonal support assemblies, so that the possibility of the decrease in the stability of the connection between the pipe and the hanger can be reduced, the possibility of pipe rupture is reduced, and the possibility of a safety accident is lowered.

The invention relates to the field of gas pipeline laying, in particular to a gas pipeline system laying structure and a laying method. The system comprises a pipeline, wherein a laying groove is formed in the ground along the laying direction of the pipeline, the pipeline is laid in the laying groove, installation components are arranged on the two sides of the pipeline, the installation components comprise a mounting plate, a fixing bolt, a fixing plate and a first elastic part, the mounting plate is arranged on the peripheral surface of the pipeline and is embedded into the side wall of the pipeline, the fixing bolt is arranged on one side, far away from the pipeline, of the mounting plate and fixes the mounting plate on the pipeline, the fixing plate is vertically arranged on the two sides of the pipeline, the first elastic part is arranged between the fixing plate and the mounting plate, when the mounting plate is arranged on the side wall of the pipeline, the first elastic part is in a stretching state, and a supporting component used for supporting the pipeline is arranged at the bottom of the laying groove, so that the effects of improving the anti-seismic capacity of the pipeline and reducing the possibility of pipeline break are achieved.

The invention discloses a structural device capable of quickly removing and installing engine combustor windows. Two visual windows include a glass window on the top of an extended piston and a glass cylinder sleeve on the side surface of a combustor. The structural device is of the structure that a cylinder cover is supported by an upright post, the glass cylinder sleeve is arranged between the cylinder cover and a sliding sleeve, the inside diameters of the two sleeves are the same, the glass cylinder sleeve is positioned in a rabbet in the top surface of the sliding sleeve which is fixed on a support flat plate, screw nuts are symmetrically installed on both sides of the flat plate, and screws are screwed into the screw nuts to form a transmission pair. The screws are screwed to descend / lift, so as to drive the circular glass cylinder sleeve arranged in the rabbet of the sliding sleeve to move up and down, so that quick removal and installation are realized. A screw sleeve is arranged on the upper end of the extended piston, and the glass window is arranged in the middle of a piston ring on the top of the extended piston. The screw sleeve is unscrewed, so that the glass window can be taken out from a side hole of the extended piston. By using the structural device, the engine combustor windows can be quickly removed, the structural device has the advantage of good sealing performance, and the experiment efficiency is improved.