134results about How to "Meet shape requirements" patented technology

The invention belongs to the technical field of materials, and relates to a wave-transmitting core clamping material and a manufacturing method and application thereof. The wave-transmitting core clamping material comprises an upper skin layer, a core layer and a lower skin layer, wherein the upper skin layer and the lower skin layer are bonded on the two sides of the core layer, respectively; the upper skin layer and the lower skin layer are made of a fiber-reinforced thermoplastic composite material or a laminated material of the fiber-reinforced thermoplastic composite material and a transition material. The prepared wave-transmitting core clamping material provided by the invention has the characteristics that the quality is light, the intensity is high, the wave-transmitting property is good, the adaptive temperature range is wide, and the core clamping material is manufactured to be in different shapes through different manners of hot pressing, vacuum forming and the like so as to meet the requirement on the shape of an antenna cover.

The invention relates to a telescoped type waterproof sealed wallboard, and belongs to the technical field of architecture. The wallboard comprises an inner wallboard and an outer wallboard, which are relative staggeredly arranged along the edge. The staggered extended parts of the inner wallboard and outer wallboard are provided with a waterproof enhancing material; the edges of the wallboards are provided with an enhancing frame; vertical seams between wallboards and horizontal staggered seams or vertical and horizontal staggered seams are used to carry out telescoped and embedded installation; the staggered seams are the external edges of inner wallboard and outer wallboard, which are relative staggeredly arranged; and after splicing, the four edges of the whole wallboard are parallel and level. The problems that the integrity of common prefabricated wallboards is bad and the waterproof and sealing performance is bad are solved by the waterproof structure and the waterproof material, moreover, the operation is simple, the construction efficiency is high, and the wallboard is suitable for an industrial building production mode and has a wide application prospect in the building field.

The invention discloses an internal supercharging method for a composite material multi-rib siding structure cementing forming technology. A multi-rib siding structure includes an upper skin siding (1), wall bodies (2) and a lower skin siding (3), wherein the wall bodies (2) are cemented with the upper skin siding (1) and the lower skin siding (3) through a double faced gel mold (4) secondary cementing forming technology, and the multi-rib siding structure is characterized in that metal core molds (5) are arranged at the inner cavities of the wall body (2) sides of the multi-rib siding structure; a layer of 3 mm thick silicone rubber plate (6) formed after high temperature sulfuration is laid on each of the lower mold surfaces of the metal core molds (5); a layer of 6 mm thick swelled rubber plate (7) is laid on each of the upper mold surfaces of the metal core molds (5); after all the inner cavities of the wall body (2) sides of the multi-rib siding structure are subjected to the processes, entire heating is performed, when the temperature rises, the swelled rubber plates (7) swell to press flange areas of the wall bodies (2) to enable the wall bodies (2) to be glued to the upper skin siding (1) and the lower skin siding (3) in a clinging manner, and finally demoulding is performed after natural cooling and solidification of gel molds. According to the method, as the pressed assembly is adopted, all the wall body parts are accurately supported, as a result, the outline requirement of the cementing parts is met and the cementing quality is guaranteed.

The invention relates to a light buckling-restrained brace energy dissipation device with triple metal circular tubes, which consists of a core stressed tube, buckling-restrained tubes, pilot pins and end part connecting pieces. The core stressed tube is made of a metal material with lower yield strength and good tensility, the end part section thereof is reinforced through opening a groove in the middle part to ensure that the end part section is in a flexible stressed state in the whole stressing process and is positioned between a buckling-restrained inner tube and a buckling-restrained outer tube; the buckling-restrained tube consists of an inner restraining tube, an outer restraining tube and a filling-in board, the inner and outer restraining tubes limit the core stressed tube to flex along a radial part and provide the flexural rigidity for preventing the energy dissipation device from flexing integrally; the filling-in board is axially connected with the inner tube along a brace and has considerable flexural rigidity to limit the movement of a yield section of the core tube along a tangent direction; and the pilot pins are used for fixing the relative positions of the triple metal circular tubes.

A plasma etching method for forming a trench having a side wall of smooth shape while simultaneously satisfying the requirement of the shape of the trench and the requirement of the aspect ratio. A silicon substrate is placed on a lower electrode (120). An etching gas is supplied through a gas introducing port. Exhaustion through an exhaust port (150) is performed. High-frequency power is fed to an upper electrode (110) and the lower electrode (120) from the high-frequency power supplies (130a, 130b) so as to change the etching gas into a plasma by an ICP method and to produce active species. Thus, the silicon substrate is etched. The etching gas is a mixture gas composed mainly of SF6 gas and additionally O2 gas and He gas.

The invention provides a method for preparing an electric vacuum inspiration element by using powder injection molding, which belongs to the electric vacuum inspiration element manufacturing technical field. The preparation technology is as follows: Ti powder and Mo powder taken as raw materials are mixed in a mixer, the evenly-mixed raw material powder and adhesive are mixed according to the volume ratio, mixed in a mixing roll, cooled, then crushed into injection feedstock, and subject to the injection molding, two-step debinding process treatment is adopted to a blank formed by the injection molding, the blank formed by the injection molding undergoes solvent debinding and vacuum thermal debinding then, and finally vacuum sintering is carried out to the debound blank to prepare the vacuum inspiration element. The method has the advantages that: the method can prepare the inspiration elements with complicated shape and high dimension accuracy to meet the requirement of spaces with various shapes of various electric vacuum devices to the complicated shape and the dimension accuracy of the inspiration elements. The aperture and the degree of porosity of the product are evenly controlled, and the degree of porosity of the inspiration element can reach more than 50 percent.

The invention discloses a construction method of a vibration pressing type special-shaped multi-head bottom expanding pile. The method comprises the steps that a, a sinking pipe is subject to vibration pressing, and a pile hole is formed; b, an inner casing pipe is pulled up, concrete is poured in, forced extrusion is carried out, an outer casing pipe is pulled up synchronously, and an expansion head is formed; c, after first-time bottom expanding, a pile driver is adopted to synchronously sink the inner casing pipe and the outer casing pipe, forced concrete extrusion is carried out again, second-time bottom expanding is carried out, and a final pile bottom expansion head is formed; d, after second-time bottom expanding construction is finished, the inner casing pipe is pulled up, concretefor forming a pile main body of the pile body is poured into the outer casing pipe, the pile driver is adopted to carry out sinking pipe vibration pressing on the inner casing pipe, the outer casingpipe is pulled up synchronously, concrete is extruded, and the pile main body is formed; e, when the pile main body is constructed to the preset position, the concrete on the preset position is subject to forced vibration pressing, and the pile main body is subject to radial expansion; f, after the pile main body expansion head is formed, concrete is poured into the outer casing pipe, the sinkingpipe is subject to vibration pressing, concrete is extruded, and the pile main body is formed; g, a steel reinforcement cage is inserted in the concrete.

The invention discloses a sensor injection-moulding technology. A secondary injection-moulding method is adopted; in the first injection moulding, a sensor electronic element is coated by a thermosetting material; and in the second injection moulding, the semi-finished product obtained from the first injection moulding is subjected to second injection moulding by using a thermoplastic material. A secondary injection-moulding technology combining the thermosetting material with the thermoplastic material is utilized, and the sensor electronic element is coated by the thermosetting material, so that the purpose of protecting a PCB (printed circuit board) and the electronic element is achieved; the thermoplastic material is used for conducting second injection moulding, so that the purposes of coating the thermosetting material and meeting the appearance requirement are achieved, the usage amount of moulds can be reduced and the cost is lowered.

The present invention relates to an end mill, which comprises a cutter body and cutter teeth, and is characterized in that the cutter teeth are multiple blade helix blade, and the hard alloy blade and the polycrystalline hexagonal boron nitride blade are arranged at intervals, such that a side wall and a bottom surface of a workpiece can be simultaneously milled. During a production process, with the end mill of the present invention, production cost can be reduced, and products with excellent quality can be obtained. The present invention further provides a method for milling a compressor scroll part by using the end mill. The method mainly comprises the following steps: adopting a corrugated rough milling cutter to carry out semi-finish milling on a machined compressor scroll part; adopting the end mill to carry out finish milling on the semi-finish milled compressor scroll part; and completing a milling process of the compressor scroll part.

The invention relates to the technical field of preparation of alloy powder, in particular to a device and method for preparing high-melting-point alloy powder through a high-temperature electric arc. The device comprises a powder collecting device, a consumable electrode and a non-consumable electrode, wherein the consumable electrode and the non-consumable electrode are used for generating electric arcs and are both inserted into an opening of the collecting device, a metal wire passes through the consumable electrode, a tungsten electrode is arranged in the non-consumable electrode, the metal wire passing through the consumable electrode is connected to a positive electrode of an arc generating power supply, a tungsten electrode is connected to a negative electrode of the arc generating power supply, an arc arches between the metal wire and the tungsten electrode, an atomizing spray pipe is arranged on one side of the electric arc, high-speed gas sprayed out of the atomizing spray pipe is directly sprayed to molten drops formed by combustion of the electric arc, bypass side blowing is carried out, the molten drops are further finely atomized, and a wire feeding device is used for conveying metal wires into the consumable electrode. The alloy powder prepared by the preparation method can meet the shape requirement of spherical powder, the particle size distribution of the powder is adjusted according to the current, the powder making efficiency is high, and the types of the prepared powder are flexible.

The invention discloses a drawing die for a rectangular flat steel tube, which does not need to be corrected after heat treatment and can ensure the precision and surface flatness of the rectangular flat steel tube. The drawing die comprises a die body, wherein a drawhole of the drawing die comprises an inlet section, a transition section and a sizing section, and the sizing section comprises a pair of straight short surfaces, a pair of arc long surfaces and four corner arc surfaces which connect the straight short surfaces with the arc long surfaces; the transition section comprises four transition inclined planes which are joined with the straight short surfaces and the arc long surfaces and four transition corner curved surfaces which connect the two adjacent transition inclined planes; and the inlet section comprises four leading-in curved surfaces which are respectively joined with the corresponding transition inclined planes and protrude outwards and inlet corner curved surfaces which connect the two adjacent leading-in curved surfaces, the four leading-in curved surfaces are all quadric surfaces, and the opposite leading-in curved surfaces are symmetrically distributed. The drawing die is used for drawing a circular steel tube to form the rectangular steel tube.

The invention provides a scanning electron microscopy sample production method of a coated white cardboard fracture. The method comprises the following steps: shearing a coated white cardboard to form a long strip, wherein one end of the long strip along the length direction is sharp-pointed, and the width of the tip is less than or equal to 0.5 mm; and slicing the tip of the long strip through adopting a mechanically propelled ultrathin slicing machine by using a diamond cutter at a slicing rate of below 0.5 mm/sec in order to obtain the coated white cardboard fracture. The coated white cardboard fracture produced by using the method is clean and flat without pollutant shielding, so the clear coated white cardboard fracture microscopic picture of the sample fracture is obtained, and analysis test of the thickness of a white cardboard coating and the particle size and the shape of particles is realized by using a scanning electron microscope.

The invention discloses a battery cell assembly for a soft package button lithium ion battery. The battery cell assembly comprises a positive plate, a negative plate, a positive tab, a negative tab and a diaphragm, wherein the positive plate and the negative plate are laminated and then wound into a cylindrical battery cell, and the diaphragm is arranged between the positive plate and the negativeplate; the cylindrical battery cell is provided with a bottom surface, a top surface and side surfaces, and the bottom surface or the top surface is in the shape of an axial section of a capsule; thelength of the bottom surface is within 20mm, and the width of the bottom surface is less than the length; the height of the side surface is within 10mm; the positive tab is fixedly connected to the positive plate, and the negative tab is fixedly connected to the negative plate. By using the cylindrical battery cell, a capsule-shaped soft package button lithium ion battery of which the appearanceis similar to that of a common medicine capsule can be prepared; the shape requirement of the continuously developed Bluetooth mobile equipment for the battery can be met, and the electricity storagecapacity equivalent to that of a button battery of a common cylinder specification can be provided at the same time, so that the endurance time requirement of the Bluetooth mobile equipment is also considered.

The invention relates to a heating body elastic supporting structure of a mini electric cooker. The heating body elastic supporting structure comprises an outer pot, an inner pot and an electric heating device. A middle layer is arranged in the outer pot and provided with an inner cavity. The electric heating device comprises a heat conducting tray and an electric heating body. The electric heating body is connected to the bottom of the heat conducting tray. The heating body elastic supporting structure is characterized in that the electric heating device is arranged at the lower portion of the inner cavity of the middle layer through a sheet elastic body, gaps are reserved between the electric heating device and the bottom wall of the inner cavity of the middle layer and between the electric heating device and the side wall of the inner cavity of the middle layer, the sheet elastic body is integrally formed by a bearing face, a supporting face and an elastic face, the bearing face and the supporting face are vertically staggered, the bearing face is connected with the electric heating body, the supporting face is connected with the middle layer, the elastic face is connected between the bearing face and the supporting face, and an inner container is arranged in the inner cavity of the middle layer and makes elastic contact with the heat conducting tray. The electric heating device of the mini electric cooker of the structure is supported by the sheet elastic body stably and reliably, so that it is guaranteed that the electric heating body makes contact with the inner container well, and the heat transfer effect is good.

The invention provides a worm machining device. The worm machining device is used for machining a blank (1) into a worm, and comprises a movement mechanism, a base (91), an upright column (92), a milling cutter rotating driving motor (93) and a milling cutter (94); the movement mechanism is fixed on the base (91); the lower end of the upright column (92) is fixedly connected with the base (91); the milling cutter rotating driving motor (93) is mounted on the upper end of the upright column (92) and used for driving the milling cutter (94) to rotate; the milling cutter (94) is mounted on the milling cutter rotating driving motor (93) and used for cutting the blank (1); the movement mechanism comprises a blank carrying piece (2), a sleeve (3) with external threads, a driving sleeve (4) with internal threads and a frame (7).

The invention discloses an electrolysis shaping method of a TC4 titanium alloy turbine blade repairing layer. The method includes the steps of S1, building an electrolysis processing system which comprises a power system, an electrolyte circulating system, an electrolytic cell, a displacement platform, a cathode system and a control system, wherein the circulating pipe of the electrolyte circulating system is connected with the electrolyte inlet and the electrolyte channel of the cathode system, and the positive pole and the negative pole of the power system are connected with the cathode system; electrolyte is a 18% sodium chloride solution, and the rotation speed of an electrolyte circulating pump is 1800r/minute; S2, processing, to be more specific, using a TC4 titanium alloy sheet after sheet edge micro-arc build up welding as the turbine blade sample, using an epoxy resin insulating layer to protect the non-repairing face of the turbine blade, and placing the turbine blade samplein the channel of the cathode system to perform electrolysis repairing. The electrolysis shaping method has the advantages that an improved cathode process is used to perform electrolysis shaping on abuilding up welding repairing blade tip, the shaping time of the single blade is 80 seconds, and good reliability is achieved.

The invention provides a four-axis driving-type helical gear processing mechanism which is used for processing a blank (85). The four-axis driving-type helical gear processing mechanism comprises a base (3), a rotary internal thread piece (1), an external thread piece (2) and a cylindrical workpiece carrying piece (8), wherein the rotary internal thread piece (1) comprises an upper cylinder part (11) and a lower cavity part (12); the lower cavity part (12) is connected with the base (3) by virtue of a bearing device (13) in a circumferential rotation and axial fixation manner; the external thread piece (2) is cylindrical, and the outer periphery surface of the external thread piece (2) is provided with external threads jointed with internal threads in the upper cylinder part (11); the base (3) is internally provided with a cavity (31); the cavity (31) is provided with a top wall (32); the cavity (31) is internally provided with a driving motor (4); the driving motor (4) is connected with the lower end of a motor driving shaft.

The invention discloses a worm processing mechanism capable of automatically radiating heat. The worm processing mechanism is used for processing a blank (1) into a worm. The worm processing mechanism comprises a blank bearing member (2), a sleeve (3) with an external thread, a drive sleeve (4) with an internal thread, and a rack (7), wherein the blank bearing member (2) is used for bearing the blank (1), the upper end and the lower end of the blank bearing member (2) are respectively fixedly arranged in the sleeve (3) with the external thread by means of an upper bearing (21) and a lower bearing (22) relative to the sleeve (3) with the external thread, the sleeve (3) with the external thread is in thread fit in the drive sleeve (4) with the internal thread, the lower end of the drive sleeve (4) with the internal thread can be rotatably arranged on the rack (7) by means of a thrust bearing (47), a cavity (72) is arranged inside the rack (7), and in the cavity (72), a drive motor (8) is fixedly arranged on the left-inner side wall of the cavity of the rack (7).

The invention provides a wrench machining integrated forming process, and belongs to the technical field of wrench machining. The process comprises a workpiece blank machining step of machining a raw material into a workpiece blank, a formed blank machining step of clamping the workpiece blank on a lathe through a main shaft chuck to obtain a smooth formed blank for cold extrusion machining through turning and a forming step of placing the formed blank into a mold to obtain an integrally formed product through the cold extrusion machining. According to the wrench machining integrated forming process, the machining size control is more accurate, the appearance of the product is consistent, the machining error is small, processes such as polishing and grinding are saved, the machining efficiency is greatly improved, and the machining cost is reduced.

The invention discloses a gas spring with a plurality of spiral columns, wherein a technical problem that conventional gas springs are complicated in structure and airproof up and down is solved. The gas spring comprises a spring body, and is characterized in that the spring body is formed by a bar-like air column which is provided with a pressure gas containing cavity; the air column repeatedly and alternately spirals from top to bottom or from bottom to top and forms the plurality of side-by-side and inclined spiral columns; the two adjacent spiral columns form a splay spiral unit; the adjacent spiral units are mutually connected; and at least one air hole for communicating the containing cavity is formed in the air column. According to the gas spring disclosed by the invention, the spiral columns are formed by one gas column, the interconnectedness is good, when the gas spring is subject to pressure, the spiral columns are mutually squeezed to buffer the pressure, the gas pressure is uniformly adjusted more conveniently, and the ventilation is good. Moisture of a mattress formed by the gas springs is easy to remove, hardness is convenient to adjust and the mattress is large in unidirectional deformation range; various requirements are met; the mattress also can be adjusted in real time; and the comfort level of the mattresses is increased.

The invention relates to a spiral gear machining mechanism capable of quickly radiating heat, which is used for machining a blank (85). The spiral gear machining mechanism capable of quickly radiating heat comprises a base (3), a rotatable internal threaded piece (1), an external threaded piece (2) and a cylindrical workpiece bearing piece (8), wherein the rotatable internal threaded piece (1) comprises an upper cylindrical portion (11) and a lower chamber portion (12), the lower chamber portion (12) is connected with the base (3) through a bearing device 13) in a circumferentially rotatable and axial fixed manner, the external threaded piece (2) is cylindrical, external threads are arranged on the external circumferential surface of the external threaded piece (2) and are jointed with internal threads in the upper cylindrical portion (11), and a cavity (31) is formed in the base (3), the cavity (31) has a top wall (32) and a driving motor (4) is installed in the cavity (31).