42results about How to "Isolated transmission" patented technology

The invention relates to the technical field of rubber materials, and discloses a flame-retardant silicon carbide ceramic rubber material and a preparation method thereof. The flame-retardant silicon carbide ceramic rubber material is prepared by taking methyl vinyl silicone rubber as a main base material and adding MIL-100 (Fe, Co) coated CSiCNS, modified mica powder and other auxiliaries, not only has excellent high temperature resistance and corrosion resistance of silicone rubber, but also has excellent wear resistance of a ceramic material; wherein the MIL-100 (Fe, Co)-coated CSiCNS is prepared by taking a silicon carbide nanosheet as a substrate for modification, and is used as an inorganic flame-retardant component in the substrate, so that the flame-retardant property of the rubber material is improved; the modified mica powder serving as a ceramic forming filler not only endows the matrix with a certain flame retardant property, but also can be subjected to melting and eutectic reaction with the silicone rubber at high temperature to form a hard ceramic body, so that the flame retardant property of the matrix is further improved.

The invention discloses a heat insulation and heat dissipation mold seat of a paper-plastic forming machine, which comprises a mold seat, a first heat insulation plate, a plurality of heat insulation layers, a second heat insulation plate, an air chamber cover plate, a heating air chamber plate, a third heat insulation plate and a heating plate which are sequentially connected from top to bottom, the plurality of heat insulation layers are uniformly arranged on the other end surface, far away from the mold seat, of the first heat insulation plate, and the air chamber cover plate is arranged on the second heat insulation plate. The heating air chamber plate, the third heat insulation plate and the upper heating plate are sequentially installed on the other end face, away from the heat insulation layer, of the second heat insulation plate, and when the device is used, the third heat insulation plate is arranged on the heating plate of a main heating component in the hot press forming step, and the second heat insulation plate, the heat insulation layer and the first heat insulation plate are arranged upwards in the direction of a machine frame of a forming machine. Therefore, the heat is effectively prevented from being transmitted to the machine frame of the forming machine, the thermal deformation of the machine frame is reduced, the precision of the machine frame is improved, and the yield of paper pulp molded products is improved.

The present invention relates to the technical field of building materials (IPC classification number is C04B28 / 04), and in particular to a high-temperature resistant inorganic artificial stone and a preparation method thereof, comprising an inorganic artificial stone substrate and a high-temperature resistant heat-insulating coating coated on the surface of the inorganic artificial stone substrate. In the present invention, the simultaneous addition of fillers, coupling agents, and expansion agents can form chemical bonds between cement gel products and fibers, can enhance the bonding force between fibers and aggregates and cement, improve the flexural strength and toughness of the board, resist high-temperature deformation and cracking of the board, and the addition of thickeners makes the board have higher conjunctival strength and adhesion, can improve the density of the board, and improve the working performance of the board. The surface heat-resistant temperature of the prepared inorganic artificial stone can reach 300-400°C, which broadens the application range of the inorganic artificial stone.

The application belongs to the technical field of composite materials, and discloses an interface flame-retardant modified bamboo fiber / epoxy resin composite material as well as a preparation method and application thereof. 2+ The stable flame-retardant layer is constructed at the interface between the bamboo fiber and the epoxy resin by using alkali treatment, polydopamine coating deposition, Zn The interface layer does not destroy the original structure of the bamboo fiber, and improves the interface compatibility of the bamboo fiber and the epoxy resin, so that the overall mechanical properties of the composite material are improved; meanwhile, the flame-retardant properties of the composite material are improved.

The invention belongs to the technical field of sensors, and particularly relates to a small-size vehicle PTH temperature, humidity and pressure integrated sensor which comprises a shell, a pressure sensing unit, a temperature and humidity sensing unit and a signal collecting and processing unit. The temperature and humidity sensing unit comprises a temperature and humidity sensing substrate and a temperature and humidity sensing chip which are longitudinally arranged below the base; the signal collecting and processing unit comprises a main PCB (Printed Circuit Board) which is transversely arranged above the base; the main PCB is transversely arranged above the base, the temperature and humidity sensing substrate is longitudinally arranged below the base, the main PCB and the temperature and humidity sensing substrate are separated through the base, signal interference can be avoided, heat transfer can be isolated, and the detection precision is greatly improved; and the temperature and humidity sensing substrate is opposite to the flow guide channel and is electrically connected with the main PCB through a plurality of connecting pins, so that complete independence of temperature, humidity and pressure acquisition is realized on the premise that the radial size of the sensor is not increased or even reduced, and comprehensive measurement of temperature, humidity and pressure is realized.

The utility model discloses sound-insulation and heat-insulation hollow glass with a bulletproof effect, which relates to the field of glass and comprises a bulletproof glass layer, a heat-insulation glass layer is fixedly connected to one side of the bulletproof glass layer, and a sound-insulation glass layer is fixedly connected to one side, far away from the bulletproof glass layer, of the heat-insulation glass layer. The bulletproof glass layer comprises an outer glass layer, a bulletproof middle layer and an inner glass layer, the outer glass layer is toughened glass, the bulletproof middle layer is formed by compounding polycarbonate and polyvinyl butyral, and the inner glass layer is a toughened glass layer. According to the bulletproof door, bulletproof protection is provided, meanwhile, external noise and heat transfer can be effectively isolated, and therefore the safety is improved, meanwhile, a more comfortable indoor environment is ensured, heat and sound transfer is effectively reduced, and the heat insulation and sound insulation performance is improved.

This invention discloses an integrated sorting device for infectious medical plastics and metal sharps, belonging to the field of medical waste treatment technology. It includes a main shell, which is a hollow cylindrical structure. Inside the main shell, three sets of sieving mechanisms for sorting medical syringes are arranged from top to bottom. Three mounting arms are fixedly connected to the inner wall of the main shell at the position corresponding to each set of sieving mechanisms, and these three mounting arms are equidistantly distributed radially along the main shell. This invention achieves automated grading and sieving of different types of medical syringes and efficient integrated separation of needle tips and syringe barrels, significantly improving the efficiency and safety of medical waste disposal. Simultaneously, through the nested structure of the hollow main shaft and the built-in secondary shaft, combined with a bevel gear transmission pair driven by a closed-loop stepper motor, the working angle of all scraping blades can be adjusted synchronously at one time, enabling precise and efficient shearing and separation of the needle root.

This invention discloses a method for preparing a flame-retardant epoxy resin containing a recyclable flame retardant and its application. The method for preparing the flame retardant includes: preparing a manganese cobalt oxide flame retardant through the co-precipitation of manganese and cobalt ions followed by calcination. This invention synthesizes a manganese cobalt oxide flame retardant via a co-precipitation method and uses it as a filler in epoxy resin, curing it to obtain a green, halogen-free, environmentally friendly flame-retardant epoxy resin. It does not pollute the environment during pyrolysis or combustion and can effectively catalyze the conversion of harmful gases generated during combustion, which is beneficial to environmental protection and sustainable development. It has excellent flame-retardant properties, greatly reducing the release of heat, smoke, and harmful gases during epoxy resin combustion, significantly enhancing its fire safety. Furthermore, it enables efficient recovery of the flame retardant from the epoxy resin, with a recovery rate of up to 90.0%, achieving high-quality resource utilization.

The utility model discloses a high comfort handlebar cell phone structure, including handle body, upper holder, lower holder, upper link plate, shock absorber and shock absorbing assembly, the handle body is held fixed with detachable mode by upper holder and lower holder, the lower holder sets up on the upper link plate, and the lower holder has two installation orientation on the upper link plate, and each installation orientation makes handle body relative upper link plate to be in different position, can satisfy the comfortable riding demand of the rider of different figure, the junction of lower holder and upper link plate is equipped with shock absorbing assembly, the upper end of shock absorber is fixed below the upper link plate, and the below of shock absorber is rotatably connected with the front wheel of the vehicle body, through setting up shock absorbing assembly, further insulates the transmission of engine vibration to handle body, greatly reduces the discomfort that the rider feels in the riding process because of vibration, improves the stability and comfort of riding.

The utility model belongs to cable connection technical field especially relates to cable head of vacuum welding, wherein one kind vacuum welded cable head, include: cable body, its end portion is from outside to inside in proper order to peel off outer sheath, aluminium sheath and semi -conductive nylon layer, sealing device, its sleeve is established in aluminium sheath end portion, and with vacuum pump intercommunication, protection shell, is sealed with aluminium sheath through solder layer and connects, wherein, through peeling off semi -conductive nylon layer, to make aluminium sheath and cable outer shield between the reserved gap form air heat insulating layer, sealing device seals air heat insulating layer, and vacuum pump negative pressure suction air heat insulating layer to form vacuum layer, through the cooperation of sealing device and vacuum pump, after sealing device seals air heat insulating layer, vacuum pump to its negative pressure suction vacuum, to insulate the heat transfer to cable body inside in the welding process.

The utility model discloses high temperature heat -proof fire door relates to the field of fire door. This high temperature heat -proof fire door includes fire door unit and cooling unit. Fire door unit contains the door body, the heat insulation board of inlaying in the door body, the protection block of fixed in the back of door body and set up at the door handle of door body positive surface. Cooling unit is by setting up in the first serpentine pipe of door body, with the second serpentine pipe of first serpentine pipe intercommunication, install the inlet pipe of first serpentine pipe one end and install the outlet pipe of second serpentine pipe one end and inlay in the protection block, and outlet pipe equidistance sets up multiple water outlet holes, is used for spraying to reduce the temperature of fire door in advance. This high temperature heat -proof fire door passes through setting cooling unit, realizes the circulating flow of cooling water, initiatively reduces the temperature of fire door, further enhances the fire -resistant performance, and the water that outlet pipe sprays still can form a layer of water film, further insulates heat transfer, improves the fire -resistant performance of fire door.

The invention discloses sec-ethyl phosphate as well as a preparation method and application thereof, and belongs to the technical field of synthesis of flame retardants. Tri (2-ethoxyl) isocyanurate, phosphorus oxychloride and an alcohol compound are used as raw materials, the cyan phosphate is prepared through three-step reaction of preparing phosphoryl chloride diester, refining the phosphoryl chloride diester and synthesizing the cyan phosphate, the molecular structure contains a phosphate group and a triazine ring conjugated structure, and a carbon source, a gas source and an acid source are integrated. The thermal decomposition temperature of the sec phosphate is greater than or equal to 320 DEG C, the UL94V-0 level flame retardant standard can be reached by adding 12%-15% of sec phosphate into a high polymer material, and the sec phosphate has the characteristics of high flame retardant efficiency, good compatibility, strong migration resistance, excellent thermal stability, environmental protection and low toxicity; the synthetic preparation method is stable in process, easy in condition control and high in product purity, can be widely applied to flame-retardant modification of high polymer materials such as polyvinyl chloride, polyurethane and epoxy resin, and has important industrial application value.

The invention relates to the technical field of coatings, and particularly discloses a multifunctional fireproof anticorrosive coating and a production process thereof. The multifunctional fireproof anticorrosive paint is prepared from the following raw materials in parts by weight: 10 to 15 parts of silicone acrylic emulsion, 6 to 8 parts of phosphorus flame retardant, 12 to 15 parts of acrylic resin, 10 to 20 parts of modified aerogel, 2 to 4 parts of curing agent, 4 to 8 parts of metal powder, 5 to 8 parts of bentonite and 25 to 28 parts of solvent, and the modified aerogel is aerogel prepared by modifying methacrylic acid-2-hydroxyethyl phosphate; the preparation method comprises the following steps: respectively adding the phosphorus flame retardant, the bentonite, the acrylic resin and the metal powder into the silicone acrylic emulsion, adding one part of the solvent, stirring, mixing, grinding, adding the modified aerogel and the curing agent, continuously stirring, adding the other part of the solvent, uniformly stirring and mixing, filtering by using a screen, and packaging. The composition provided by the invention has the advantages of good fireproof performance and corrosion resistance.

This application relates to a motor heat dissipation structure for an aircraft, comprising a motor, a heat dissipation copper fin, a heat insulation pad, and a pipe clamp seat arranged and connected in one direction, forming an annular gap between the motor and the pipe clamp seat. The heat dissipation copper fin includes a mounting portion and a heat dissipation portion. The mounting portion is fitted to the motor. The heat dissipation portion is connected to the mounting portion and extends into the annular gap. One side of the heat insulation pad is fitted to the mounting portion, and the other side is fitted to the pipe clamp seat. This invention improves the heat dissipation effect between the motor and the pipe clamp seat, effectively isolates heat transfer to the pipe clamp seat, and reduces the risk of high-temperature creep or melting of the non-metallic material pipe clamp seat. Furthermore, the heat dissipation copper fin and the heat insulation pad do not change the external dimensions between the motor and the pipe clamp seat, resulting in a compact structure.

The invention provides a coal rock sample preparation device and an intelligent discrimination method, and belongs to the technical field of coal rock physical property testing. The device comprises a constant temperature and humidity chamber, a humidity control system and a sample processing and weighing system. An electric lifting platform in the sample processing and weighing system realizes separation of a sample vessel and a sample rotating disc during weighing through lifting action, so that the weighing precision is ensured. The central control and data acquisition system manages full-automatic'lifting-rotating-descending-weighing 'circulation through a finite-state machine model, and adopts an intelligent algorithm to automatically judge whether a sample reaches moisture balance or not by judging whether continuous multiple mass changes of the sample are smaller than a preset threshold value or not. The method is implemented in a central control and data acquisition system. According to the invention, the defects of low efficiency, easy interference of precision, strong subjectivity of equilibrium state judgment and the like in the traditional method are overcome, and batch, automatic and intelligent preparation of the coal rock equilibrium moisture sample is realized.

The invention relates to the field of flame retardants, in particular to an antimony flame retardant and a preparation method thereof, and the antimony flame retardant is composed of antimony oxychloride and a triazinyl derivative; the preparation method of antimony oxychloride comprises the following steps: grinding stibnite, washing with deionized water, drying to obtain powder, adding the powder into the deionized water, uniformly stirring and mixing, introducing chlorine, sealing, heating to 120-140 DEG C, keeping the temperature, stirring and reacting for 10-20 hours, collecting a crude product after the reaction is finished, washing the crude product with the deionized water, and drying to obtain the antimony oxychloride. And purifying in carbon disulfide to obtain antimony oxychloride. The antimony flame retardant provided by the invention can greatly improve the flame retardant property of a plastic product.

This invention discloses an antistatic and flame-retardant functional masterbatch and its preparation method, relating to the field of plastics technology. The antistatic and flame-retardant functional masterbatch prepared by this invention includes a self-made antistatic agent, a composite flame retardant, polypropylene, filler, surface modifier, lubricant, dispersant, antioxidant, and toughening agent. The self-made antistatic agent is prepared by reacting a network-crosslinked isocyanate with double-terminated carboxyl polyethylene glycol, followed by crosslinking with copolymerized polyamic acid. This not only achieves long-lasting antistatic properties but also forms a crosslinked structure in the masterbatch during co-extrusion with the composite flame retardant, synergistically enhancing flame-retardant performance. The composite flame retardant includes benzylamine-modified melamine and sulfonyl diamine-modified melamine, giving the masterbatch excellent flame-retardant properties.

The utility model relates to building structure engineering technical field discloses a kind of prefabricated building flue support mechanism of fire prevention, including two support plates and flue shell, the adjacent between two The support plate is fixedly connected with multiple fire-resistant steel columns, the adjacent between two The support plate is provided with fire prevention mechanism, the fire prevention mechanism is used to improve the fireproof effect of the flue shell, the upper and lower side of the flue shell is provided with quick -mounting mechanism, the left and right side of top The support plate is provided with connecting mechanism;The fire prevention mechanism includes ceramic fiber felt shell, the outer wall of the ceramic fiber felt shell is arranged between the adjacent of two The support plate. In the utility model, by the filling of ceramic fiber felt shell, the preliminary fireproofing and heat insulation effect is completed, then by the connection and fixation of rock wool board and multiple fireproofing backing plate, the purpose of further improving fire prevention is achieved, and then effectively prevent the deformation of frame, avoid the case that flue shell loses support.

This invention discloses an anti-torsion robot cable, belonging to the field of cable technology. It comprises, from the inside out, a cable core, an insulation layer, and an outer sheath layer. The outer sheath layer is made of the following materials in parts by weight: 80-100 parts polyvinyl chloride, 20-25 parts multifunctional additives, 2-3 parts calcium / zinc composite stabilizer, 1-2 parts lubricant, and 0.5-0.8 parts antioxidant. The anti-torsion robot cable provided by this invention incorporates multifunctional additives in its outer sheath layer, based on the molecular design principle of phosphorus-nitrogen synergistic flame retardancy and lactic acid ester group high-efficiency plasticization, which can significantly improve the overall performance of the cable from multiple dimensions.

The present application relates to the technical field of paint, and especially relates to a weather-resistant one-coat paint and a preparation method thereof. The paint comprises component A and component B; the mass ratio of the component A to the component B is (25-30):3; according to weight parts, the component A comprises the following raw materials: 20-30 parts of hydroxyl acrylic acid resin, 10-20 parts of organic solvent, 25-35 parts of pigment, 5-15 parts of flame retardant, 1-5 parts of modified graphene and 1-4 parts of additive; and the component B is a solution of aliphatic polyisocyanate. The paint has excellent bacteriostasis, flame retardation, weather resistance and corrosion resistance.

The present application relates to the technical field of all-solid-state batteries, and in particular to a silicon-based negative electrode sheet, a preparation method thereof and a solid-state battery. The silicon-based negative electrode sheet comprises an alloy layer formed by metal-doped silicon and a passivation layer formed on the alloy layer and having high ionic conductivity and low electronic conductivity. The silicon-based negative electrode sheet can inhibit lithium dendrite growth under a large current density, ensure battery safety, improve the conductivity of the electrode sheet, isolate the transmission of electrons at the electrode surface and the solid-state electrolyte interface, avoid side reactions such as electrolyte decomposition, and improve the interface stability.

The invention discloses a chilling system alcohol-based coating for cast iron and a preparation process thereof, and belongs to the technical field of cast iron alcohol-based coatings, the chilling system alcohol-based coating comprises a refractory aggregate, a composite modified suspending agent, a composite binder and a solvent, based on 100 parts by weight of the refractory aggregate, 3-5 parts of the composite modified suspending agent, 1.5-25 parts of the composite binder and 30-70 parts of industrial ethanol. The coating is applied to the surfaces of phenolic resin precoated sand for large cast iron and sand mold embedded chilling blocks in a brush coating mode, excellent brushing performance and coating performance are shown, the suspending agent does not need to be added with water for expansion, ignition is conducted immediately after brushing, the surface of the coating can be promoted to be rapidly dried, the strength of a completely dried coating is high, and the coating can be applied to large-scale cast iron. The coating has good coating performance on the surfaces of resin sand molds and iron blocks, is easy to peel off after being sintered, and can effectively avoid the phenomena of sand burning and iron melting, so that the surface smoothness of castings is remarkably improved, the cleaning workload in the later period of demolding of the castings is greatly reduced, and the quality of the castings is fundamentally improved.

The application discloses a low-heat-release, low-smoke-density flame-retardant polyamide material and a preparation method and application thereof, and belongs to the technical field of high polymer materials. The material comprises nylon resin 52-61%, a flame retardant 18-26%, a flame-retardant synergist 6-10%, a plasticizer 8-15%, a coupling agent 0.5-1.0%, an antioxidant 0.3-1.0% and a lubricant 0.3-1.0%, and is prepared through mixing, melt mixing, extrusion and granulation. The application effectively reduces the heat release and the smoke density of the polyamide material during combustion through the synergistic effect of the components such as the flame retardant, and meanwhile, good mechanical properties and processing stability are maintained, thereby meeting the demand of high-safety-grade application scenarios.

The invention belongs to the field of silica gel foam, and particularly relates to silica gel foam for heat preservation, heat insulation and thermal protection and application of the silica gel foam. The hollow glass beads are added into the silica gel foam formula, the hollow glass beads, the magnesium hydroxide and the flame-retardant powder are compounded, and the overall content of the powder in the silica gel foam formula is regulated, so that the density, the compression stress and the heat conductivity coefficient of the silica gel foam can be synergistically regulated; the silica gel foam has the advantages of high density, excellent compression stress and low heat conductivity coefficient. Besides, the silica gel foam can start to absorb heat and quickly respond to thermal runaway of the PTC heater when thermal runaway happens to the PCT heater, the thermal insulation and cooling effects are achieved, meanwhile, the flame retardant property of the silica gel foam is improved, the thermal insulation and flame retardant properties are lasting, and the silica gel foam is suitable for thermal runaway protection of the PTC heater.

The utility model is suitable for the technical field of fireproof door hot pressing, and provides a fireproof door hot pressing device which comprises supporting frames, a conveying belt arranged between the supporting frames and a fixing frame arranged on the supporting frames. A group of hydraulic cylinders are symmetrically arranged on the fixing frame; the tail ends of piston rods of the two hydraulic cylinders are connected with the same hot pressing plate, a set of lead screw sliding tables are symmetrically arranged on the top side of the fixing frame, and the movable ends of the two lead screw sliding tables are connected with the same assembly frame. The same pressing roller is rotationally matched between the assembly frames; according to the device, real-time monitoring and uniform control of the temperature in the hot-pressing process are realized through the sectional structure and the infrared temperature measurement channels between the adjacent sections, and the accuracy and the stability of hot-pressing operation are ensured, so that the product quality is ensured; and meanwhile, due to the synergistic effect of the pressing roller and the hot pressing plate, the problem of uneven pressing of a single hot pressing plate is avoided, and the hot pressing stability and the product quality are further improved.

The present application relates to a kind of environmental protection low smoke halogen-free flame-retardant fire-resistant power cable and its preparation method, belong to cable technical field.The cable includes conductor, insulating layer and sheath layer, wherein sheath layer is made of composite material, include the following weight parts components: polyolefin matrix resin 100 parts, magnesium hydroxide 50-80 parts, modified phosphate intercalation hydrotalcite 3-8 parts, modified wollastonite 5-15 parts, modified boromagnesite 8-20 parts, compatilizer 2-4 parts, auxiliary agent 1-3 parts.The modified phosphate intercalation hydrotalcite is magnesium aluminum hydrotalcite after phosphate intercalation, then by silane coupling agent modification treatment;Modified wollastonite is by silane coupling agent modification treatment;Modified boromagnesite is by silane coupling agent and organosilicon resin common modification treatment.Product has flame-retardant, fire-resistant, low smoke performance and good mechanical property.

The application discloses a phosphorus-nitrogen synergistic polyethylene glycol intrinsic flame-retardant phase change material and a preparation method thereof, relates to the technical field of phase change energy storage materials, and the material is prepared by taking polyethylene glycol long-chain aldehyde as a phase change skeleton, condensing with aromatic primary amine to obtain a Schiff base intermediate, and adding a phosphorus-containing compound to introduce a phosphorus-nitrogen flame-retardant group, so that the material has both phase change energy storage and intrinsic flame-retardant properties. Through molecular structure design, the application retains good phase change characteristics, and at the same time, excellent intrinsic flame-retardant properties are endowed to the material, so that the problem of flammability of traditional organic phase change materials is effectively improved.

The utility model belongs to the technical field of suspended ceilings, and particularly relates to a wall top flexible lap joint suspended ceiling which comprises a suspended ceiling body, a plurality of fixing seats are fixedly arranged on the top of the suspended ceiling body, and the edges of the suspended ceiling body are fixed in a lap joint mode through metal elastic fasteners. When the suspended ceiling is used, the suspended ceiling body is not directly connected with a building wall, the edge of the suspended ceiling is connected with the metal elastic fasteners on the periphery of the wall, and when materials of the suspended ceiling body deform due to changes of air humidity, expansion caused by heat and contraction caused by cold and the like, the suspended ceiling body is not associated with the wall. And meanwhile, the suspended ceiling has a free space for self contraction and extension within a certain area range, so that the common problem that the splicing part of the suspended ceiling body is easy to crack is solved. Through the design of the adjustable suspension assembly, the height of the suspended ceiling body can be flexibly adjusted, the construction difficulty and cost are reduced, and height fine adjustment is allowed according to the room height and decoration requirements.

The invention discloses a multi-dimensional fire prevention and control system for an electric vehicle lithium battery, and the system comprises a vehicle lithium battery box, a thermal insulation protection module, a lithium battery fire composite detector, a lithium battery electrical parameter collection module, a lithium battery operation environment monitoring and management module, and a lithium battery fire suppression system. A plurality of lithium battery cell units are arranged in the automobile lithium battery box, the lithium battery cell units are separated through a thermal barrier protection module in the automobile lithium battery box, and a lithium battery fire composite detector used for detecting the internal environment of the automobile lithium battery box is installed in the automobile lithium battery box. According to the invention, multi-dimensional protection of the lithium battery cell unit in the automobile lithium battery box is realized, so that good fire prevention and control are achieved, and the safety is high.

The utility model belongs to the field of automobile parts, and provides a multi-module lightweight integrated EGR valve which comprises a main valve body module, a bypass valve module and a cooler module. Wherein the main valve body module forms a waste gas output port; the bypass valve module is connected to the main valve body module and forms a waste gas input port; the cooler module is connected to the bypass valve module and comprises a cooler shell formed through injection molding and a cooler core arranged in the cooler shell, and a gas passing channel communicating with the waste gas input port and the waste gas output port is formed in the cooler core. And a cooling cavity through which cooling liquid passes is formed between the outer surface of the cooler core and the cooler shell.