131results about How to "Simple molding process" patented technology

The invention relates to a magnetic latching relay and an assembling method thereof. The magnetic latching relay comprises an armature assembly, the armature assembly comprises a shell and a permanent magnet arranged in the shell, the armature assembly further comprises a limiting structure, the limiting structure comprises a connecting part and a limiting part, the connecting part is connected to the shell, and the limiting part is connected to the end, away from the shell, of the connecting part; the auxiliary movable spring part is provided with a through hole, at least part of the connecting part is located in the through hole, and the limiting part is located on the side, opposite to the shell, of the auxiliary movable spring part so as to limit the auxiliary movable spring part on the shell. According to the magnetic latching relay, the assembly process of the auxiliary movable spring part is simplified, and the assembly difficulty and the preparation cost are reduced.

The invention relates to a corrosion-resistant flame-retardant cable and a preparation method thereof, and belongs to the technical field of special flame-retardant cables. The cable is composed of a bunched wire core and a protective sleeve on the surface, and the protective sleeve is prepared from, by weight, 100 parts of PVC resin, 10-15 parts of POE resin, 12-16 parts of insulating filler, 25-30 parts of flexibilizer, 4.8-5.5 parts of stabilizer, 9-13 parts of modified phosphorus-silicon flame retardant, 0.13-0.16 part of antioxidant and 4.5-5.8 parts of lubricant. The modified phosphorus-silicon flame retardant is substituted by hydroxyl single-terminated silicone oil and vinyl trichlorosilane to form a compound with multiple silicon chains and alkenyl, namely an intermediate, DOPO and the alkenyl on an intermediate molecule are subjected to addition, DOPO serving as a phosphorus flame-retardant material is grafted to the intermediate molecule, a large number of silicon chain-DOPO-PVC layered structures are formed in the near surface layer of the protective sleeve, and the flame-retardant protective sleeve is formed. And the shielding, corrosion-resistant and flame-retardant effects are achieved.

A dynamic and static combined submarine cable disclosed by the present invention comprises a dynamic cable and a static cable, the dynamic cable comprises a dynamic cable core, a dynamic filling steel strand and a dynamic armor layer, the static cable comprises a static cable core, a static filling strip and a static armor layer, the dynamic cable core is correspondingly connected with the static cable core, the dynamic filling steel strand is correspondingly connected with the static filling strip, and the static filling strip is correspondingly connected with the static armor layer. The dynamic armor layer is correspondingly connected with the static armor layer; the invention further discloses a forming method of the dynamic and static combined submarine cable, the dynamic cable and the static cable are formed, the steel strands are inserted into the filling strip connecting holes, the conductor core wires are welded, the dynamic steel strand PE sheaths are formed, the common filling strips are welded, the dynamic armored steel wires and the static armored steel wires which are opposite to each other are fixed, and the dynamic armored steel wires and the PE wires which are opposite to each other are fixed. And forming the outer sheath. According to the dynamic and static combined submarine cable and the forming method thereof, the dynamic cable and the static cable are independently formed and then assembled.

The high-temperature-rise combustion chamber comprises a sudden expansion diffuser, a cartridge receiver, a combined air atomizing nozzle and a flame tube and can solve the problems that in the prior art, a high-temperature-rise combustion chamber of a small and medium-sized turbojet engine is low in fuel oil supply pressure and fuel oil flow is increased, so that fuel oil atomization is poor, the combustion efficiency is low, and the combustion efficiency is low. And the service life of the flame tube is difficult to meet the requirement due to great reduction of the cooling air quantity and increase of the cooling air temperature. An overall layout form of fuel oil radial grading and axial grading is innovatively adopted, and swirlers used for assisting fuel oil atomization all adopt a beveling hole mode; space compound angles are innovatively adopted for cooling holes in the flame tube, and the overall layout form of different sizes and different hole pitches is adopted in different areas. Fuel oil atomization quality and efficient combustion under various working conditions can be improved, the service life of the flame tube is prolonged, and meanwhile the machining process of the swirler is simplified due to the fact that the swirler adopts an inclined hole mode.

The utility model discloses an unmanned aerial vehicle body force-bearing bulkhead. The overall structure comprises nacelles, a force-bearing bulkhead body and screws. The bearing bulkhead is of a C-shaped section structure, adopts a machining part or a forge piece and is a composite material part in the structural form; a connector machining part is arranged in the C-shaped frame of the force-bearing bulkhead, a threaded positioning hole is formed in the C-shaped frame, and the C-shaped frame is connected with the nacelle through a screw; the bearing bulkhead comprises a front main bearing frame and a rear main bearing frame, and lightening holes are formed in web faces of the front main bearing frame and the rear main bearing frame, so that the overall weight is reduced. On the one hand, the structural form is simple, and good rigidity and strength are achieved; compared with a machined part or a forged part, the composite material part has the advantages that the overall weight can be reduced, the production and manufacturing period is short, the cost is low, and the forming process is simple; on the other hand, the lightening holes are formed, so that the load capacity of the load cabin is increased; the C-shaped frame connector is connected with the nacelle end through a positioning screw, so that the fuselage and the nacelle end are firmly connected together, and force is guided to the force bearing frame from the nacelle.

The invention provides a polyaryletherketone thermoplastic composite material fan blade and a preparation method thereof. The preparation method comprises the following steps: a) paving a polyaryletherketone prepreg in a fan blade mold, and carrying out vacuum heat setting to form a prepreg blank; and b) closing the prepreg blank obtained in the step a), performing hot press molding, demolding, and processing a finished product to obtain the polyaryletherketone thermoplastic composite material fan blade. Compared with the prior art, the preparation method provided by the invention selects specific raw material components to be matched with specific process steps to realize better integral interaction: the low-melting-point polyaryletherketone prepreg is used as the raw material of the blade, so that the forming temperature is lower, the forming manufacturability is better, and the production cost is lower; and meanwhile, the prepared fan blade has the dual advantages of weight reduction and impact resistance, and application of the thermoplastic composite material to an aero-engine is facilitated to be popularized.

The invention belongs to the technical field of thermal insulation materials, and discloses a quartz fiber reinforced phenolic aerogel composite material with a densified surface layer and a preparation method of the quartz fiber reinforced phenolic aerogel composite material. The composite material comprises a densified surface layer and a light inner layer, the densified surface layer takes polycarbosilane modified bismaleimide resin as a matrix and quartz fiber woven cloth as a reinforcement; and the light inner layer takes phenolic aerogel as a matrix and quartz fiber needled felt as a reinforcement body. The preparation method comprises the following steps: connecting the surface layer woven fabric and the inner layer needled felt into a whole through needling, and then sequentially filling the surface layer matrix and the inner layer matrix. The aerogel composite material has the characteristics of ablation resistance, tough surface and heat insulation, the comprehensive density and the comprehensive mechanical property can be regulated and controlled, and the comprehensive requirements of heat insulation, low-speed impact resistance, light weight and certain mechanical strength of a large-area thermal protection structure of the windward side of a hypersonic speed device on the phenolic aerogel composite material can be met.

This utility model discloses a square double-U connector, including a connector body, an insert, and a safety valve assembly. The connector body has a cavity, and the insert divides the cavity into two parts, which are connected by a through-hole. A safety valve assembly is located at the bottom of the insert, with one through-hole connected to the safety valve assembly via a flow channel. The safety valve assembly includes a valve ball, a spring, and a plug. A drain hole is located at the bottom of the connector body, and its upper end is connected to the safety valve assembly. This utility model is not only low-cost but also simple to manufacture. The safety valve structure inside the insert increases the inlet pressure when sediment or dirt accumulates and clogs the through-hole. When this pressure exceeds the spring's elasticity, the valve ball is pushed open, the spring is compressed, and the accumulated sediment is flushed out of the flow channel by the water, thus achieving internal cleaning and preventing clogging of the double-U connector.

The utility model discloses an automatic riveting and assembling mechanism for a circuit breaker contact assembly, and belongs to the technical field of circuit breaker riveting equipment. The device comprises a first riveting mechanism, a second riveting mechanism and an assembly assembling mechanism, the first riveting mechanism is used for riveting a first assembly of the circuit breaker, and the first riveting mechanism comprises a first workpiece positioning part and a first riveting part; the second riveting mechanism is used for riveting a second assembly of the circuit breaker, and the second riveting mechanism comprises a second workpiece positioning part and a second riveting part; the assembly assembling mechanism is used for assembling the first assembly and the second assembly and comprises a workpiece supporting part and a crimping part. All the components of the mechanism are reasonable in arrangement, the circuit breaker forming process is simple, assembling is easy and convenient, the automation degree is high, the assembling efficiency is improved, machining is reliable, and the assembling accuracy of the circuit breaker components is improved; the components accurately support and position the circuit breaker component through the positioning parts, so that the quick riveting assembly of the circuit breaker contact component is realized.

The invention is suitable for the technical field of materials, and discloses silica gel and a preparation method thereof, and a silica gel product and a preparation method thereof. Wherein the silica gel comprises a first component and a second component, the first component comprises a base material, a reinforcing agent, a modified filler, titanium dioxide and a vulcanizing agent, and the second component comprises a base material, a reinforcing agent, a modified filler, titanium dioxide, a cross-linking agent and a polymerization inhibitor. The silica gel provided by the invention not only has better mechanical properties, but also has a small friction coefficient, when the silica gel is in contact with skin, the adhesion feeling is low, the smooth effect is good, and the smooth feeling and the skin-friendly property are improved. Moreover, two components, namely the first component and the second component, are arranged, the first component and the second component are stored separately, the material is easy to store and stable in performance, the service life of the product can be prolonged, in addition, the material preparation and forming process is simple, the vulcanization time is short, and the production efficiency is greatly improved.

The invention discloses a forming method of a precise thin-wall high-temperature alloy special-shaped seamless tube for aviation, which comprises the following steps: step 1, carrying out multi-pass cold rolling on a seamless tube blank to obtain a finish-rolled round tube; wherein the perimeter C0 of the finish rolling round pipe is 1.04-1.06 times of the perimeter C < different > of the finished special-shaped pipe, and the wall thickness of the finish rolling round pipe is 0.98 times of the wall thickness of the finished special-shaped pipe; 2, degreasing, heat treatment, straightening, UT flaw detection and tip making are conducted on the finish-rolled round pipe obtained in the step 1; and (3) the round pipe obtained through treatment in the step (2) is subjected to three-pass continuous air drawing process forming, and the finished special-shaped pipe is obtained.

The utility model relates to a luminous water hose and a conveying system, the water hose comprises a lining and luminous guide lines, a conveying channel is defined by the lining, at least two braid layers are sleeved on the outer side of the lining, and the luminous guide lines are clamped between two adjacent braid layers and are arranged along the length direction of the conveying channel; according to the water hose, the light-emitting guide lines are clamped between the two adjacent woven layers, on one hand, the light-emitting guide lines do not need to be woven through weaving equipment in the forming process of the water hose, the light-emitting guide lines cannot be damaged, the forming technology of the water hose can be simplified, and cost is reduced; and on the other hand, after the luminous water hose is formed, the luminous guide line has no pre-tightening force in the length direction, so that the stress condition of the luminous guide line can be greatly improved, the service life of the luminous guide line is prolonged, and the reliability of the luminous water hose is improved. In addition, the arrangement of the light-emitting guide lines is more flexible, so that different light-emitting effects are achieved, and market requirements are better met.

The invention belongs to the technical field of harmless treatment of hazardous solid waste resources, and discloses a supported VOCs treatment catalyst, which is prepared by the following steps: by taking waste catalyst powder and gamma-Al2O3 as raw materials, carrying out dry mixing to obtain a mixed material, then mixing the mixed material with an adhesive and a pore-enlarging agent to obtain base material powder, then carrying out dry molding to obtain a molded catalyst carrier, and finally, carrying out solid-liquid separation on the molded catalyst carrier to obtain the supported VOCs treatment catalyst. And preparing a mixed impregnation liquid of ferric nitrate and manganous nitrate, and preparing the supported VOCs treatment catalyst by adopting a complete equivalent-volume impregnation method. A series of forming auxiliaries are added, the forming process is optimized, and sheet carrier forming is achieved; and loading an iron element which is low in price and easy to obtain on the formed carrier through a two-dipping and two-baking method, and taking a manganese element as a second metal to prepare the environment-friendly bimetallic oxide catalyst for VOCs waste gas treatment, so that resource utilization of wastes is realized. The catalyst has a good VOCs catalytic oxidation effect, the ethylbenzene conversion rate can reach 99.5% or above, and waste gas treatment is achieved.

The present invention discloses a semi-solid die-casting heat sink and a preparation method thereof, the heat sink comprising a heat sink base and a plurality of heat sinks; the heat sink base comprises a substrate and a graphene coating; the substrate is made of heat dissipation metal material and is formed by semi-solid die-casting, the upper surface of the substrate is an arc-shaped concave structure, and the graphene coating completely covers the upper and lower surfaces and the peripheral side surfaces of the substrate; the plurality of heat sinks are distributed on the upper surface of the substrate in an array, and each heat sink comprises a barrel portion, a graphene core portion and a graphene shell; the substrate and the barrel portion are formed separately by semi-solid die-casting, and the barrel portion is combined with the upper surface of the substrate by hot pressing and welding, thereby replacing the traditional die-casting integrated forming method, effectively simplifying the forming process and reducing the cost, and at the same time, the graphene coating, the graphene core portion and the graphene shell are arranged in combination to effectively improve the heat dissipation effect of the product, and the overall performance of the product is better, which is worthy of popularization and use.

The present invention relates to the technical field of automobile parts injection molds, and in particular to an automobile headrest adjustment button injection mold and an injection molding method thereof; comprising an upper mold base, a lower mold base, an upper mold core and a lower mold core; the lower mold core is movably installed with an ejector assembly, a first slider block and a second slider block, the first slider block and the second slider block can enclose a first molding cavity, and the ejector assembly can enter the first molding cavity; the first slider block is connected to a first cylinder, the first cylinder can push the first slider block to move along a first direction and push the second slider block to move at the same time; a second molding cavity is provided at the bottom of the upper mold core, and when the upper mold core and the lower mold core are molded, the first molding cavity and the second molding cavity can mold a headrest adjustment button. Compared with the prior art, by setting the first slider block and the second slider block, it can be ensured that when the headrest adjustment button is demolded, there will be no jamming problem, thereby improving demolding reliability, demolding efficiency and product yield.

The present application relates to a battery pack (100) and an electrical device, comprising a box (10) and a battery cell (20); the box (10) comprises a main body (11) and a bottom cover (12) detachably connected to the bottom of the main body (11); the main body (11) and the bottom cover (12) together enclose a receiving cavity (s) for receiving the battery cell (20).

The present invention provides a multilayer fluorine film for heat sealing welding, the multilayer fluorine film comprises three fluorine film layers, including a first heat sealing welding layer, a structural support layer and a second heat sealing welding layer in sequence; the total thickness of the multilayer fluorine film is 10 to 250 μm; wherein the thickness of the structural support layer accounts for 60 to 98% of the total thickness, the thickness of the first heat sealing welding layer accounts for 1 to 20% of the total thickness, and the thickness of the second heat sealing welding layer accounts for 1 to 20% of the total thickness; the structural support layer is one or both of FEP fluorine film and PFA fluorine film, and the first and second heat sealing welding layers are ETFE fluorine films. The present invention changes the structure of the heat sealing welding material and optimizes the raw material composition of the structural support layer. The prepared multilayer fluorine film can reduce the initial sealing temperature of the heat sealing welding material while taking into account the temperature resistance and enhance the heat sealing strength of the heat sealing welding material, can solve the bonding problem of polytetrafluoroethylene products and other materials, and expand the application field of polytetrafluoroethylene products.

The present application discloses a fiber composite material and a preparation method thereof, a protective structural part and a vehicle. The fiber composite material includes: a resin matrix and a plurality of fiber layers. The resin matrix is ​​impregnated with the plurality of fiber layers by high-pressure resin transfer molding with the plurality of fiber layers. Thus, the resin and the plurality of fiber layers are prepared and molded by a high-pressure resin transfer molding process, and the fiber is coated with the resin matrix, so that the fiber composite material has good mechanical properties, good impact resistance, wear resistance, aging resistance, corrosion resistance and other advantages, which can meet the use requirements of vehicle anti-collision and wear resistance, and the fiber composite material does not need to be provided with a metal reinforcement structure, which can reduce the weight while ensuring the mechanical properties of the fiber composite material. At the same time, in the preparation process of the fiber composite material in the present application, the raw material utilization rate is high, the molding process is simple, the molding time and manufacturing cost can be reduced, and the production efficiency can be improved.

The utility model relates to the technical field of semiconductors, in particular to a shielding ring of semiconductor equipment and physical vapor deposition equipment, and the shielding ring comprises a shielding ring body which is provided with a coating area; the ring body base is connected to the bottom of the shielding ring body; wherein the coating area is arranged along the axial direction of the shielding ring body. According to the utility model, the impurity pollution to the physical vapor deposition chamber can be reduced, the manufacturing cost is low, the forming process is simple, and meanwhile, the uniformity of a sputtering film can be improved.

The embodiments of the present application provide a pressure relief device, a battery cell, a battery and an electrical device, which belong to the field of battery technology. Among them, the pressure relief device includes a pressure relief portion and a multi-stage notched groove, and the pressure relief portion has a first surface and a second surface relative to each other in the thickness direction. The multi-stage notched grooves are sequentially arranged on the pressure relief portion along the direction from the first surface to the second surface. In the two adjacent notched grooves in the thickness direction, the first-stage notched groove far away from the first surface is arranged on the bottom surface of the first-stage notched groove close to the first surface. The pressure relief device of this structure adopts a multi-stage notched groove structure, which can reduce the forming depth of each stage of the notched groove, thereby reducing the forming force on the pressure relief portion when forming each stage of the notched groove, reducing the risk of cracks in the pressure relief portion, and the pressure relief device is not easy to fail due to cracks in the pressure relief portion at the position where the notched groove is set, thereby improving the long-term reliability of the pressure relief device.

The utility model relates to medical instrument technical field discloses a kind of ceramic body compression mould, including mould body, ejection mechanism, compression mechanism and ultrasonic vibration device, compression cavity is built-in in mould body, compression cavity is located the top end and bottom end of mould body and is all set as open, ejection mechanism is set to the bottom of mould body and is sealed with compression cavity Connection, ejection mechanism is configured as the compression blank of ejection compression cavity inside compression forming, compression mechanism is set to the top of mould body, part of ejection mechanism is moved into compression cavity, ultrasonic vibration device is electrically connected with mould body.The ceramic body compression mould is provided with multidirectional high-frequency vibration by ultrasonic vibration device, promotes the movement rearrangement of powder, improves the uniformity and compactness of compression blank, subsequent need not to carry out cold isostatic pressing, for nano powder material also can directly carry out compression, need not to carry out preceding spray granulation, make the forming process of ceramic body more simple, cost is lower.

The utility model discloses an anti-explosion nick structure, an anti-explosion valve plate, a packaging container and a battery. The anti-explosion nick structure comprises a first groove-shaped structure arranged on the first surface of the base body and a second groove-shaped structure arranged at the bottom of the first groove-shaped structure in the thickness direction of the base body, and a groove opening of the second groove-shaped structure is located in the first groove bottom of the first groove-shaped structure. The second groove bottom of the second groove-shaped structure is of a plane structure or a cambered surface structure. The explosion-proof nick structure provided by the utility model can be used on a shell of a battery shell and also can be used on a cover plate, and the explosion value of the explosion-proof nick structure is more stable.

This utility model discloses a photovoltaic-thermal module for an evaporator, including a photovoltaic module, a heat absorber plate, a heat absorption channel, and a frame. A junction box is provided inside the photovoltaic module. The heat absorber plate is fixedly connected to the back of the photovoltaic module, and the heat absorption channel is fixedly connected to the heat absorber plate. Refrigerant circulates within the heat absorption channel. The heat absorption channel includes a manifold and branch pipes. The manifold has a closed design at both ends and is connected to a connecting pipe. The branch pipes are internally threaded thin tubes with a diameter of 3-10 mm. Both ends of the branch pipes are connected to the manifold, and one or more semi-circular bends are provided along the length of the same branch pipe. Using this photovoltaic-thermal module significantly reduces the risk of photovoltaic panel deformation and microcracks in the solar cells, simplifies the manufacturing process, reduces costs, and optimizes heat exchange efficiency.

The invention discloses a preparation, forming and evaluation method of a renewable H2S adsorption material, and relates to the technical field of adsorption materials, and the preparation method comprises the following steps: adding a tetrahydrofuran solution, an N, N-dimethylformamide solution, water and hydrochloric acid into a scandium trifluoride solid and biphenyltetracarboxylic acid, and carrying out ultrasonic dispersion; reacting at 75 DEG C for 72 hours; after cooling to room temperature, carrying out suction filtration, taking crystals, cleaning and drying, and synthesizing the H2S renewable adsorption material; dissolving a binder in water to prepare a binder solution; mixing the synthesized H2S renewable adsorption material with a methylcellulose solid, adding the mixture into a binder solution, and mixing and stirring; molding and granulating through a banded extruder, and then drying to obtain a molded adsorption material; and placing the formed adsorption material in a stainless steel measuring tube, carrying out adsorption and desorption treatment, repeating the operation, and evaluating the material. The adsorbent prepared by the method can realize normal-temperature or low-temperature renewable adsorption and desorption, and is energy-saving, efficient, high in adsorption capacity, high in adsorption and desorption evaluation and high in practicability.

The present application relates to a battery pack (100) and an electrical device, comprising a battery cell (20) and a box (10), wherein the box (10) encloses a receiving cavity (s), and the box (10) comprises a supporting member (11a) located at the top of the box and used to define the receiving cavity (s), and the battery cell (20) is received in the receiving cavity (s) and suspended from the supporting member (11a).

The utility model relates to the technical field of heavy-duty car basin beam installation, in particular to a light-weight double-cross-beam basin beam installation structure which comprises double cross beams, each cross beam is provided with a first basin beam and a second basin beam, and the first end of the first basin beam is welded to the first end of a basin beam connecting plate. The first end of the second basin beam is welded to the second end of the basin beam connecting plate, the second end of the first basin beam is connected with the first basin beam support through a bolt, and the second end of the second basin beam is connected with the second basin beam support through a bolt. The basin beam mounting structure is simple to form, light in weight, capable of improving the torsional rigidity of a frame and meeting the strength of all using working conditions of a whole vehicle, and good in forming manufacturability; the basin beam assembly of the structure is completely calculated through strength and fatigue CAE simulation under the whole vehicle working condition, the fault rate is reduced, the generalization degree is improved, and the modularization level is improved.

The invention discloses a PET composite folded plate type periodic structure air inlet noise reduction pipeline which comprises a noise reduction pipeline body, noise reduction areas are circumferentially distributed on the noise reduction pipeline body, acoustic cavities protruding outwards are formed in the noise reduction areas, and each acoustic cavity is correspondingly provided with a folded plate type periodic acoustic crystal structure. The folded plate type periodic acoustic crystal structure comprises a plurality of acoustic cells which are sequentially arranged in the axial direction, each acoustic cell is composed of a scatterer and a base body, the scatterer is fixed to the front face of the base body, and the back face of the base body is fixedly connected with the acoustic cavity; and the base body in the axial direction is periodically folded. The problem that a traditional single-layer PET noise reduction pipeline is low in transmission loss at the low and medium frequency of 1000 Hz or below is solved, a folded plate type periodic acoustic crystal structure is additionally arranged on the basis of a traditional PET pipeline, the traditional pipeline and the acoustic crystal structure are fully combined, the traditional pipeline solves the high and medium frequency problem, the acoustic crystal solves the low frequency problem, and the noise reduction effect is good. Therefore, the full-band transmission loss is obviously improved.