45results 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.

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.

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 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 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 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 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 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.

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 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 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.

This application discloses a fluid management component including a flow channel, a liquid storage section, and a filter assembly. The flow channel has a flow channel, and the liquid storage section has a liquid storage cavity. The flow channel communicates with the liquid storage cavity. The liquid storage section includes a first liquid storage section and a second liquid storage section, which are fixedly connected. The filter assembly is at least partially located in the liquid storage cavity. The first or second liquid storage section has a groove forming the liquid storage cavity. The flow channel is at least partially integrated with the first liquid storage section, or at least partially integrated with the second liquid storage section, simplifying the molding process of the overall structure of the flow channel and the liquid storage section, thereby simplifying the molding process of the fluid management component.

The utility model discloses a hand-held sweeper handle main body production mould, which comprises an upper mould, a lower mould, a first core-pulling unit and a second core-pulling unit, the upper mould is provided with an upper mould core, the upper mould core is provided with a convex column, the lower mould is provided with a lower mould core, a forming groove is arranged on the lower mould core, the first core-pulling unit and the second core-pulling unit are respectively arranged on the side edge of the lower mould core, and the convex column is arranged on the convex column. The first core-pulling unit is provided with a first core shaft, the second core-pulling unit is provided with two core shafts, and when the upper mold and the lower mold are closed, the convex column, the first core shaft and the second core shaft are respectively inserted into the forming grooves to jointly form an injection mold cavity of a product. According to the hand-held sweeper handle main body production mold, the convex column, the first core shaft and the second core shaft are respectively inserted into the molding groove of the lower mold core, so that the injection molding mold cavity for molding the handle main body is formed, two parts of the handle main body can be integrally molded through the injection molding mold cavity, and subsequent splicing is not needed; therefore, the forming process of the handle body is simplified, and the forming efficiency of the handle body is improved.

This invention belongs to the field of ablation-resistant thermal insulation composite material preparation technology, specifically relating to a polyacrylonitrile-based hollow carbon fiber for thermal protection materials and its preparation method. The invention first pre-oxidizes porous polyacrylonitrile precursor fibers to obtain porous pre-oxidized fibers. Then, phenolic resin is coated onto the surface of the pre-oxidized fibers through solution polymerization. After impregnation in an organosilicon source solution, rapid Joule heating at high temperature deposits both phenolic carbon microspheres with excellent ablation resistance and a silica coating on the fiber surface, forming a unique hollow carbon fiber structure with excellent thermal insulation properties. This solves the problem that polyacrylonitrile-based carbon fibers cannot simultaneously achieve both thermal insulation and ablation resistance. The thermal conductivity of the polyacrylonitrile-based hollow carbon fiber prepared by this method is about 17% lower than that of porous polyacrylonitrile carbon fibers prepared by traditional carbonization methods, making it applicable to the field of integrated ablation-resistant thermal protection materials.

The invention discloses a carbon fiber composite material valve and a design method thereof, and belongs to the field of valve design, an actual valve body adopts a metal material as an inner container, the outer layer is coated with a CFRP material, and the two materials are glued into a whole through epoxy resin. The thickness of the CFRP material coated at different positions of the valve body is different, the thicker positions of the CFRP layer are the inner sides of the flanges at the two ends, the outer wall of the position connected with the large bolt and the annular outer wall in the flow direction of the valve body, and the other areas are only coated with the thinner CFRP layer as the appearance, so that the complete valve body of the carbon fiber composite material valve is formed. Meanwhile, the invention further discloses a design method of the carbon fiber composite material valve. The valve body of the valve is made of the CFRP instead of part of metal materials, weight reduction and noise reduction of the carbon fiber composite valve can be achieved by means of the advantages of low density and high vibration resistance of the CFRP, and the disadvantages of large weight and large noise of a traditional metal valve are overcome. The forming process of the CFRP material is facilitated.

The invention relates to an anti-shedding epoxy resin adhesive and a preparation method thereof, and belongs to the technical field of adhesives. The adhesive is prepared from the following raw materials in parts by weight: 50-60 parts of epoxy resin, 20-40 parts of a curing agent, 10-30 parts of a toughening agent, 1-5 parts of a coupling agent, 10-30 parts of starch modified epoxy resin, 1-5 parts of an anti-aging agent, 1-5 parts of an accelerant, 0.1-1 part of a defoaming agent, 0.1-1 part of a release agent and 10-20 parts of a diluent. The invention also discloses a preparation method of the adhesive. The adhesive prepared by the invention has excellent anti-falling performance, can effectively prevent an adhered object from falling off in the use process, and also has good water resistance, heat resistance and aging resistance.

The invention relates to a connecting support structure suitable for a cab rear overhang, and the connecting support structure comprises a safety hook, an upper cover plate and a side plate, and the side plate is shaped like a Chinese character'ji 'and is vertically arranged; the upper cover plate is inverted U-shaped and is fixedly buckled at the upper end of the outer side of the side plate; the lower end of the safety hook extends into the upper cover plate and is fixedly connected with the inner side wall of the upper cover plate, and the upper end of the safety hook extends upwards out of the upper cover plate. The structure innovation of the safety hook, the upper cover plate and the side plates is adopted, on the basis that original functions are achieved through few parts and a simple process, the characteristic that an oil vehicle and an electric vehicle adopt the same chassis is combined, multiple functional structural components are provided for installation, the utilization rate is high, the batch is large, and therefore the cost is low.

The application provides a special-shaped rigid capsule based on gas column networking and an aircraft, and relates to the technical field of flight equipment. The special-shaped rigid capsule based on gas column networking comprises an outer capsule skin, a gas column networking unit and a differential pressure regulation system. The gas column networking unit is composed of a plurality of columnar air bags arranged along a preset special-shaped contour and connected with each other, serving as the main load-bearing structure of the capsule and used for supporting and shaping the outer capsule skin to form a rigid special-shaped structure without an independent rigid framework. The differential pressure regulation system is connected with the gas column networking unit and used for adjusting the pressure difference between the inside of the columnar air bags and the external environment to change the structural rigidity of the special-shaped rigid capsule. The application solves the defects in the prior art that the aircraft cannot simultaneously consider light weight, high rigidity, adjustable rigidity and easy maintenance, and realizes a special-shaped structure solution that can simultaneously consider light weight, high rigidity, adjustable rigidity and easy maintenance.

The stretching base comprises the base body, the end cover and the foot pad, the end cover is installed on the arc-shaped protruding portion, the foot pad is installed at the tail end of the foot of the base body, and a part to be installed is assembled with the base body through the connecting end cover. According to the stretching base, the end cover is additionally arranged on the base body, so that the to-be-installed component is connected through the end cover to be assembled with the base body, the end cover and the to-be-installed component can be assembled in a closer fit design, the assembling stability is improved, the end cover is formed through plastic injection molding, forming and manufacturing are easy, the weight is light, and the cost is low; the base body adopts punch forming to replace a die-casting forming process, the forming process is simplified, the die manufacturing cost is reduced, the forming quality is improved, and the foot pads are additionally arranged on the foot portions of the base body, so that the base body assembled with the to-be-installed component is stably placed, and meanwhile the placement position is not damaged.

The utility model provides a back door lock mounting assembly and a vehicle, which belong to the technical field of vehicle parts, the back door lock mounting assembly comprises a back door main body and a reinforcing support, the reinforcing support is box-shaped, the inner cavity of the reinforcing support can accommodate a back door lock, the reinforcing support is provided with a connecting plate in fit connection with the inner side surface of the back door main body, and a coaming covering the inner side of the connecting plate, and a door lock mounting position is formed on the coaming. According to the back door lock mounting assembly, the overall structural strength and rigidity of the back door lock mounting area are remarkably improved, the use reliability is greatly improved, compared with a traditional reinforcing structure, the reinforcing effect of the back door lock mounting area is remarkably improved through the back door lock mounting assembly, and the problem that a back door inner plate and the reinforcing structure are durable and crack is solved; and the drawing depth is reduced during forming, so that the forming process is improved, and the problem of cracking in the forming process of the back door inner plate is avoided.

The utility model relates to the technical field of vehicle accessories, and discloses a threshold plaque limiting clamp, a vehicle door assembly and a vehicle. The threshold trim panel limiting clamp comprises a clamping part, a limiting part and a limiting part, wherein the clamping part is provided with a clamping groove matched with the thickness of a door opening metal plate; and the limiting part is formed by extending and bending the tail end of the clamping part, and when the clamping part is clamped at the spigot position of the door opening metal plate, the limiting part can limit the doorsill trim panel in the disengaging direction of the doorsill trim panel so as to prevent the doorsill trim panel from being disengaged from the sealing strip. The threshold plaque limiting clamp is clamped at the seam allowance position of the door opening metal plate through the clamping part, the limiting part can limit the threshold plaque in the disengaging direction of the threshold plaque, the threshold plaque is prevented from being disengaged from the sealing strip, reliable limiting is achieved, the threshold plaque limiting clamp is directly installed in a clamping mode, assembling is easy, operation can be rapidly and conveniently conducted by one person, and cost is reduced. Compared with the mode of welding a metal plate support in the prior art, the assembling convenience is greatly improved, the assembling efficiency is high, and maintenance and replacement are convenient.

The application relates to an ultrathin device and a preparation method and application thereof. The ultrathin device is prepared by the following steps: a mixture containing raw material powder, a binder and a solvent is granulated by a spray drying method to obtain a first precursor, the raw material powder comprises metal material powder and / or ceramic material powder, the surface area average particle size of the raw material powder is 1-15 mu m, the mass ratio of the raw material powder to the binder is 100:(1-10), the surface area average particle size of the first precursor is 40-80 mu m, and the fluidity of the first precursor is lower than 30 s / 50 g; the first precursor is subjected to a forming treatment to obtain a second precursor, the second precursor has a preset shape; and the second precursor is subjected to a heat treatment to obtain the ultrathin device, and the thickness of the ultrathin device is less than or equal to 1 mm.

The utility model relates to a washing machine feeding box which comprises an outer box and an inner box movably located in the outer box, the inner box comprises a storage cavity capable of containing a fluid-state treating agent used for washing clothes for multiple times, and a connecting valve is arranged on the wall of the storage cavity; the connecting valve comprises a first connecting part which is formed on the wall and comprises a liquid outlet; the sealing part can seal or open the liquid outlet; the suction tube part is independently formed and installed on the wall from the interior of the storage cavity, the sealing part is located in the suction tube part, and when the sealing part opens the liquid outlet, the interior of the suction tube part is communicated with fluid in the liquid outlet. The utility model further relates to a washing machine with the feeding box.

The utility model relates to the technical field of dies, in particular to a nail tooth metal shell heat insulation forming die. According to the technical scheme, the forming die comprises a forming core die, a forming male die, a forming female die, a heat insulation layer, a forming cylinder and a metal shell, the forming male die is used for forming the inner shape size of the heat insulation layer and is matched with the forming core die and the forming female die through positioning holes or positioning pins, and the forming female die is used for restraining the forming cylinder and preventing the metal shell from deforming in the forming process; and the heat insulation layer is pre-formed into a step-shaped structure matched with the forming core mold and is bonded with the metal shell through an integral forming process. According to the utility model, the constraint of the forming cylinder on the outer side of the shell is increased, the forming process is simplified, the processing steps are reduced, the production efficiency is obviously improved, and compared with the traditional process, the heat insulation forming of the metal shell can be completed in a shorter time, and the production cost is reduced.