58results about How to "With electromagnetic shielding effect" patented technology

The invention discloses a lotus leaf surface-imitated super-hydrophobic film and a preparation method thereof. The super-hydrophobic film comprises a base membrane made of a low surface energy material and a micro / nano structure formed on the base membrane, wherein the micro / nano structure comprises micron particles evenly distributed on the base membrane and nano mastoids grown on the micron particles. The preparation method comprises the following steps: firstly, dispersing oxide nano particles in a modified solution added with a coupling agent, stirring, separating and drying, thus obtaining modified oxide nano particles; then adding an initiator in the modified oxide nano particle solution, heating, and simultaneously dropwise adding a mixed monomer solution of fluorine-containing acrylate monomers and hydroxyl-containing acrylate monomers; mixing with organic silicon modified polyurethane, and adding a catalyst so as to obtain a nano composite solution after reaction; and finally, filming by utilizing the diluted nano composite solution, and drying so as to obtain the lotus leaf surface-imitated super-hydrophobic film. The film discloses by the invention has the advantages of good self-cleaning effect, good mechanical property and stability, low cost, environmental friendliness and the like.

The invention discloses a heat-conducting conductive elastomer material and a preparation method thereof. The elastomer material is prepared from the following components in parts by weight: 10 to 50 parts of phenylethylene elastomer, 10 to 50 parts of mineral oil, 10 to 50 parts of polyolefin, 5 to 40 parts of metal fibers, 5 to 20 parts of nanometer copper powder, 1 to 5 part(s) of antioxygen and 5 to 40 parts of expanded graphite. Compared with the prior art, the heat-conducting conductive elastomer material provided by the invention has a better heat-conducting effect, and a thermal coefficient of the material can reach above 4W / m.K; and moreover, the material has the advantages of good electromagnetic shielding effect, heat conduction, electric conduction, softness and low hardness.

The invention relates to a covering membrance, which comprises an insulation base material layer, an epoxy resin composite material layer and an adhesive layer which are stacked in sequence, wherein the epoxy resin composite material layer is positioned between the insulation base material layer and the adhesive layer and is formed by an epoxy resin composite material, the epoxy resin composite material comprises carboxy terminal polymer modified epoxy resin, a carbon nanometer tube and inorganic dispersion materials, and the mass percentage of the carbon nanometer tube in the epoxy resin composite material is 4.6-16. The invention also provides a manufacturing method of the covering membrance.

The invention relates to a circuit board substrate, which comprises a first copper foil layer, a first insulating layer, an epoxy resin composite material layer, a second insulating layer and a second copper foil layer which are sequentially stacked, wherein the epoxy resin composite material layer consists of an epoxy resin composite material, the epoxy resin composite material comprises carboxyl end group polymer modified epoxy resin, a carbon nano tube and an inorganic dispersed material, and the mass percentage of the carbon nano tube in the epoxy resin composite material is 4.6-16%. The invention also provides a manufacturing method of the circuit board substrate.

The invention discloses a carbon fiber metro vehicle body chassis and a manufacturing method thereof. The metro chassis comprises transverse ribs, lower skin, an interlayer honeycomb material and upper skin, wherein the lower skin is attached to the transverse ribs in a laid manner, and the interlayer honeycomb material is placed between the upper skin and the lower skin. The invention further discloses the manufacturing method of the carbon fiber metro chassis. The manufacturing method comprises the following steps of 1, laying and attaching the transverse ribs of the chassis, and embedding a foaming material into groove areas of the transverse ribs; 2, laying and attaching the lower skin, and laying and attaching a reinforcing layer to a specified layer; 3, connecting wiring pipes with the honeycomb material in a bonding manner, and conducting pore filling well; and 4, laying and attaching the upper skin, and laying and attaching a reinforcing layer to a specified layer. In the process, the transverse ribs, the upper skin and the lower skin are cured through an OOA process, wherein the transverse ribs and the lower skin are integrally cured. Different from traditional aluminum alloy materials and stainless steel materials, the metro chassis made of the carbon fiber material is high in bearing capacity, good in rigidity, small in self weight, excellent in impact resistance and long in service life.

The present invention relates to the technical field of materials, and in particular relates to a method for preparing a flexible stretchable conductive film with an electromagnetic shielding function. The method comprises uniformly mixing conductive materials (including metal nanowires and nanoparticles, carbon nanotubes, graphene, etc.) with a fluid state polymer (for example, polydimethylsiloxane, PDMS), and preparing a functional glue with excellent electrical conductivity and electromagnetic shielding effectiveness, at the same time preparing a solid stretchable flexible (PDMS) substrateand then attaching the functional glue to the substrate. The conductive film obtained has excellent features of high electromagnetic interference shielding performance (70dB), recyclability (20,000 times), high stretchability (up to 340% for strain of the PDMS), and excellent electrical conductivity (surface resistance (0.2 Omega) etc..

The invention relates to a vehicle antistatic electricity technique, and discloses a tyre with anti-static electrification, comprising tyre lip, tyre wall and tyre cap. A conducting layer extends from the tyre lip through tyre side to tyre cap. The conducting layer of the said tyre lip is mounted on the external surface of the tyre lip and directly contacts with the wheel rim. A ground contact is set on the conducting layer of the tyre cap. The conducting layer is increased in the tyre and wheel rim is grounded. The effect of releasing static electricity is realized by tyre. The invention has features of stable and reliable discharge property, continuous discharge, wear well, beautiful vehicle.

The invention relates to an environment-friendly type decorating material, in particular to a sound-absorbing heat-insulating fire-retardant environment-friendly type decorating material with an electromagnetic shielding function. The environment-friendly type decorating material has a laminated structure, comprises a sponge layer and is characterized by also comprising a TPU layer, a conducting cloth, a separating type material layer and three adhesive layers, wherein the arrangement sequence of each layer is as follows from outside to inside: the TPU layer, the first adhesive layer, the sponge layer, the second adhesive layer, the conducting cloth, the third adhesive layer and the separating type material layer; and the TPU layer, the sponge layer, the conducting cloth and the separating type material layer are bonded into an integer by the three adhesive layers. The invention provides the sound-absorbing heat-insulating fire-retardant environment-friendly type decorating material which has the advantages of good ventilation property, scratch resistance, abrasion resistance and electromagnetic shielding.

The invention relates to an amorphous alloy-gypsum composite board, a preparation method and an application thereof. The amorphous alloy-gypsum composite board comprises an amorphous alloy strip layer and gypsum layers, wherein the amorphous alloy strip layer is clamped between the gypsum layers, and the whole composite board is integrally cast and formed. The preparation method comprises the following steps: firstly putting amorphous alloy into a mould, exerting certain pre-tensile stress on the amorphous alloy, adding water into gypsum powder and then pouring the mixture into the mould, releasing the pre-tensile stress after the board is formed and detaching the mold, so as to obtain the amorphous alloy-gypsum composite board. The amorphous alloy strip positioning accuracy is achieved, the integrity of the amorphous alloy strip and the gypsum is good, the binding force is strong, and the bending and cracking resistance of the gypsum is improved, the composite board has electromagnetic shielding performance, and meanwhile, the mechanical property and the electromagnetic shielding performance are high in designability.

The invention provides a waterproof roll with an electromagnetic shielding function. The waterproof roll comprises a body base layer, a first waterproof layer is arranged on the upper surface of the body base layer, a second waterproof layer is arranged on the lower surface of the body base layer, a first conductive rubber layer is arranged on the upper surface of the first waterproof layer, a second conductive rubber layer is arranged on the lower surface of the second waterproof layer, and surface protection layers are arranged on the other surface of the first conductive rubber layer and the other surface of the second conductive rubber layer. The body base layer is a non-woven fabric layer, the first waterproof layer and the second waterproof layer are SBS modified asphalt layers, the first conductive rubber layer and the second conductive rubber layer are made of a graphene / natural rubber nanocomposite, and the surface protection layers are made of PE films. According to the waterproof roll, the adhesiveness between every two layers is high, the preparing process is simple, the electromagnetic shielding effect of the polymer modified asphalt waterproof roll can be greatly improved, the demands of the current building industry and the market are met, and high application value is achieved.

The invention particularly relates to a power distribution box, and belongs to the technical field of electrical control. By virtue of the power distribution box, electromagnetic interference betweenhigh-voltage and low-voltage components can be avoided, and safety and reliability are achieved; meanwhile, the power distribution box provides an electromagnetic shielding function, so that the normal operation requirement of an electric control box can be satisfied; the power distribution box comprises a box body, a box door and components placed in the box body; one side of the box door is hinged with the power distribution box body through several door hinges; a ring of sealed shielding door frame is arranged in the opening of the power distribution box body; the inner side edge of the shielding door frame is fixedly connected with the power distribution box body, and an electromagnetic shielding door sealed structure is arranged between the outer side edge and the inner side surface of the box door; the electromagnetic shielding door sealed structure comprises a sealed frame substrate and a conductive rubber sealed frame; the sealed frame substrate is fixedly connected with the inner side of the box door; the conductive rubber sealed frame is glued and fixed on the sealed frame substrate through conductive adhesive; and the position of the conductive rubber sealed frame is corresponding to the outer side edge position of the shielding door frame.

The invention relates to a circuit board substrate. The circuit board substrate comprises a first copper foil layer, a first insulating layer, an epoxy resin composite material layer, a second insulating layer and a second copper foil layer. The epoxy resin composite material layer is made from an epoxy resin composite material. The epoxy resin composite material comprises carboxyl-terminated polymer modified epoxy resin, carbon nano tubes and inorganic dispersed materials, wherein the mass percentage of the carbon nano tubes in the epoxy resin composite material is 4.6% to 16%, and the epoxy equivalent of the carboxyl-terminated polymer modified epoxy resin is 323 to 352. The invention further provides a manufacture method of the circuit board substrate.

The invention relates to a preparing method of a flexible carbon nanotube / metal composite film applied to the electromagnetic shielding field, and relates to a method for improving the existing nanotube film electromagnetic shielding effectiveness by growing metal particles on the carbon nanotube film surface. The preparing method sequentially comprises the following steps that firstly, the surface morphology of the carbon nanotube film is constructed; secondly, electrodeposition liquid is prepared; thirdly, a cathode deposition component is assembled; and fourthly, the metal particles are grown on the surface of the carbon nanotube film. The carbon nanotube film obtained by the method has high conductivity, excellent flexibility and light weight, and the adopted method and equipment are simple, cost is low, pollution is avoided, repeated use can be achieved, and the electrodeposition process can achieve the characteristics of industrialization and the like.

The invention discloses a 5G-based high-performance electromagnetic shielding material, of which the volume density is less than 2.5 g / cm3 and the electromagnetic shielding efficiency is greater than85dB; the high-performance electromagnetic shielding material is composed of foamy carbon, silicon carbide nanowires, graphene and phenolic resin. The preparation method comprises the following steps:taking organic foam as a raw material, carrying out pyrolysis at high temperature to prepare foam carbon, then carrying out in-situ growth of silicon carbide nanowires in the foam carbon by adoptinga chemical vapor deposition (CVI) method and Ni catalysis to obtain a silicon carbide nanowire reinforced foam carbon matrix, and then carrying out vacuum pressure impregnation with graphene modifiedresin, thereby finally obtaining the silicon carbide nanowire reinforced foam carbon material of the graphene modified resin. The material has a good shielding effect on high-frequency electromagneticwaves, the shielding bandwidth is large, the heat dissipation performance is good, and meanwhile structure and function integration is achieved.

The invention discloses a multilayer composite graphene electromagnetic shielding material and a preparation method thereof. The multilayer composite graphene electromagnetic shielding material comprises a fabric substrate, wherein a carbon-based shielding layer and an aqueous polyurethane curing layer are sequentially coated on the fabric substrate from bottom to top, and the carbon-based shielding layer is formed by stacking a carbon nanotube layer and a graphene layer, or is formed by mixing carbon nanotubes and graphene. The carbon nanotubes as a typical electromagnetic shielding materialis provided with a longitudinal conductivity and a three-dimensional conductive network, the high-quality thin-layer graphene has an ultra-high horizontal conductivity, in addition, the magnetic shielding of nano ferroferric oxide particles greatly enhances the electromagnetic shielding effectiveness of the material, and the synergistic effect has both electromagnetic shielding effectiveness and heat conduction and heat dissipation effects.

The invention discloses a solar energy photovoltaic cable and a preparation method thereof. The cable comprises the following components: polyphenylene sulfide, an ethylene-vinyl acetate copolymer, graphene modified polyethylene resin, polyethylene wax, dicapryl phthalate, modified attapulgite clay, magnesium hydroxide, a filler, a fire retardant, and an anti-oxidant. The method comprises the following steps: reacting the components according to a certain ratio, uniformly mixing the components, and performing extrusion moulding to obtain the photovoltaic cable. The photovoltaic cable has goodwater resistance, anticorrosion and flame retardation performance, has good electromagnetic shielding effect, greatly increases the service life of the photovoltaic cable, enlarges the application place of the photovoltaic cable, and has good application value and prospect.

The invention relates to a capacitive patch loaded dual-mode substrate integrated waveguide band-pass filter, which comprises a first layer metal plate, a first layer dielectric plate, a second layermetal plate, a second layer dielectric plate and a third layer metal plate which are arranged in sequence from top to bottom and are fixedly connected in sequence, wherein a microstrip-to-coplanar waveguide feed line structure is arranged on the surface of the first layer metal plate, the second layer metal plate comprises four capacitive patches, the third layer metal plate is an all-metal-covered ground, and a metallized blind hole is formed in the second layer dielectric plate. The top end of the metallized blind hole is fixedly connected with the bottom end of the capacitive patch, the bottom end of the metallized blind hole is fixedly connected with the top end of the all-metal covered ground, metal through holes which are communicated with each other are formed in the first layer dielectric plate and the second layer dielectric plate, and the metal through holes are communicated with the first layer metal plate and the third layer metal plate. The waveguide band-pass filter has the characteristics of more miniaturization and capability of realizing high selectivity.

The invention discloses electromagnetic shielding concrete and a preparation method thereof, belonging to the technical field of concrete materials. The electromagnetic shielding concrete is preparedfrom the following concrete raw materials in parts by weight: 450-550 parts of cement, 950-1050 parts of gravels, 500-600 parts of sand, 100-160 parts of zeolite powder and 120-180 parts of water. Theraw materials of the concrete also inclue an additive and a regulator. The additive comprises the following raw materials in parts by weight: 4-8 parts of carbon fibers and 2-8 parts of steel fibers.The regulator comprises the following raw materials in parts by weight: 35-45 parts of graphite powder, 8-15 parts of amantadine hydrochloride and 15-25 parts of alumina sol. The electromagnetic shielding concrete has the advantage of good electromagnetic shielding performance. The preparation method of the electromagnetic shielding concrete comprises the following steps: preparation of the additive, preparation of the regulator, mixing, preparation of the concrete and the like. The method has the advantage that the electromagnetic shielding performance of concrete can be improved.

The invention discloses a lotus leaf surface-imitated super-hydrophobic film and a preparation method thereof. The super-hydrophobic film comprises a base membrane made of a low surface energy material and a micro / nano structure formed on the base membrane, wherein the micro / nano structure comprises micron particles evenly distributed on the base membrane and nano mastoids grown on the micron particles. The preparation method comprises the following steps: firstly, dispersing oxide nano particles in a modified solution added with a coupling agent, stirring, separating and drying, thus obtaining modified oxide nano particles; then adding an initiator in the modified oxide nano particle solution, heating, and simultaneously dropwise adding a mixed monomer solution of fluorine-containing acrylate monomers and hydroxyl-containing acrylate monomers; mixing with organic silicon modified polyurethane, and adding a catalyst so as to obtain a nano composite solution after reaction; and finally, filming by utilizing the diluted nano composite solution, and drying so as to obtain the lotus leaf surface-imitated super-hydrophobic film. The film discloses by the invention has the advantages ofgood self-cleaning effect, good mechanical property and stability, low cost, environmental friendliness and the like.

The invention discloses a preparation method of an antibacterial electromagnetic shielding type plywood, and belongs to the technical field of plates. According to the method, the polyaniline monomersare used as raw materials, the arrangement and conformation of the polyaniline main chains are changed; the conductivity of the polyaniline reaches the maximum value; the electromagnetic shielding performance of the modified polyaniline solution is greatly improved; the wood core board is placed in the modified polyaniline solution for dipping, so that the modified polyaniline solution with the electromagnetic shielding effect is attached to the surface of the wood core plate; the honeysuckle contains rich achyranthes bidentata, inositol, tannic acid and other effective components and can beused for inhibiting various bacteria; silica gel is amorphous silicon dioxide, the chlorhexidine acetate solution can be adsorbed by silica gel, due to the use of the chlorhexidine acetate solution, the antibacterial performance of the plywood prepared by the method can be improved; 3-Glycidoxypropylthrimethoxysilane is used as a coupling agent, mixed and stirred with silica gel adsorbed with chlorhexidine acetate, so that the antibacterial silica gel adhesive is fully fused into an adhesive state. The antibacterial electromagnetic shielding type plywood has a wide application prospect.

The invention discloses an electromagnetic shielding concrete and a preparation method thereof, and relates to the technical field of concrete materials. An electromagnetic shielding concrete is prepared from concrete raw materials comprising the following parts by weight: 450-550 parts of cement, 950-1050 parts of gravel, 500-600 parts of sand, 100-160 parts of zeolite powder, and 120-180 parts of water; The concrete raw material also includes additives and regulators; the additives include the following raw materials in parts by weight: 4-8 parts of carbon fiber, 2-8 parts of steel fibers; the regulator is made up of the raw materials of the following parts by weight: graphite powder 35-45 parts 8-15 parts of amantadine hydrochloride, 15-25 parts of aluminum sol; electromagnetic shielding concrete has the advantage of good electromagnetic shielding performance. The preparation method of the electromagnetic shielding concrete includes the following steps: preparation of additives, preparation of regulators, mixing and preparation of concrete, etc.; it has the advantage of improving the electromagnetic shielding performance of concrete.

The invention discloses an induction cooker coil disc capable of simplifying an installation process and improving induction heating efficiency and a processing technology thereof. The induction cooker coil disc comprises a magnetic core framework and a coil winding disc, wherein the magnetic core framework comprises a round bottom disc, an upward annular flange is arranged at the edge of the outer side of an upper surface of the round bottom disc, a support post is arranged at the center of the upper surface of the round bottom disc, the coil winding disc sleeves the support post, the annular flange, the bottom disc and the support post are of an integrated structure, and the magnetic core framework is formed by integratedly pouring a magnetic material and engineering plastic. The magnetic core framework has a support effect of a support and also has an electromagnetic shielding effect of a magnetic strip, so that the installation process of the coil disc is greatly simplified, the total cost is not increased a lot, and the induction cooker coil disc is convenient to install and maintain; and moreover, the integrated magnetic core framework structure is simple in structure and is easy to manufacture, the installation process is simplified, the induction heating effect of an induction cooker can be greatly improved, and the induction cooker coil disc is suitable for promotion and application in the field of household appliances.

The invention discloses a leakage-proof plate. The leakage-proof plate is characterized in that the leakage-proof plate comprises a stainless steel housing, multiple insulators and inserting pins, wherein the insulators are arranged in the stainless steel housing, and the inserting pins correspond to the insulators in a one-to-one mode; the stainless steel housing and the insulators are fixedly connected through a sintering process, and the insulators and the corresponding inserting pins are also fixedly connected through the sintering process; a sealing sleeve is fixed to one side of the stainless steel housing, and one end of each inserting pin penetrates out of the sealing sleeve. Multiple mounting holes are evenly formed in the stainless steel housing. The leakage-proof plate is simple in structure, low in manufacturing cost and high in performance and is used for circuit connection between electronic instruments, electronic instruments of sealed containers, electronic equipment and power supplies, airtightness is good, and the leakage-proof plate has the electromagnetic shielding effect and is suitable for different severe environments of coal mines, airtight power equipment and the like.

The invention discloses a chlorosulfonated polyethylene anti-corrosion coating with a nano ferrite graphene composite material. The chlorosulfonated polyethylene anti-corrosion coating is prepared from the following raw materials in parts by weight: 60-65 parts of chlorosulfonated polyethylene latex, 35-40 parts of neoprene latex, 7-8 parts of polyoxyethylene aliphatic alcohol ether, a proper amount of deionized water, 2.5-3 parts of a silane coupling agent KH560, 2-3 parts of lanthanum oxide, 1.5-2 parts of cerium sesquioxide, a proper amount of a 65wt% nitric acid solution, a 50wt% ammonium bicarbonate solution, 10-12 parts of rutile titanium dioxide, 1-1.5 parts of dipropylene glycol monomethyl ether, 2-2.5 parts of simethicone, 2.7-3 parts of ferric trichloride hexahydrate, 1.2-1.3 parts of cobalt chloride hexahydrate, 4-5 parts of graphene oxide, 0.1-0.12 part of sodium thiosulfate, a proper amount of absolute ethyl alcohol and a proper amount of a 10wt% sodium hydroxide solution. The chlorosulfonated polyethylene anti-corrosion coating disclosed by the invention has good atmosphere aging resistance, corrosion resistance and electromagnetic shielding property.

The invention relates to the technical field of radiation-proof garments and discloses a radiation-proof garment and a production method thereof based on the nano aphrizite and obsidian technology. The fabric of the radiation-proof garment comprises base cloth. The aphrizite and the obsidian are added into the base cloth. The weight percentage of the aphrizite relative to the gross weight of the fabric is 40%. The weight percentage of the obsidian relative to the gross weight of the fabric is 20%. The weight percentage of the base cloth relative to the gross weight of the fabric is 40%. The radiation-proof performance of the radiation-proof garment is not changed at all after the washing of the radiation-proof garment.

The invention relates to damp-proof wallpaper easy to clean, which comprises a base material layer, an absorption layer, an anti-radiation layer, a plastic decoration layer and a waterproof layer frominside to outside; the base material layer is a non-woven fabric layer with the thickness being 0.1 to 0.15mm; the absorption layer is formed by interweaving multiple warp yarns and weft yarns; the warp yarns are formed by twisting bamboo charcoal fibers and carbon fibers; the weft yarns are formed by twisting polypropylene fibers and sandal wood fibers; the bamboo charcoal fibers have the fineness being 0.8 to 8D and the length being 10 to 100mm; the sandal wood fibers have the fineness being 0.5 to 10D and the length being 10 to 50mm. The damp-poof wallpaper easy to clean provided by the invention has the advantages of water resistance, dampproofness, mouldproofness and easiness in cleaning, also has the performance of mothproofness, noise reduction and radiation protection, can be reacted with harmful gases such as formaldehyde and xylene at the same time so as to form non-volatile and harmless macromolecular chain substances for removing odor and other harmful gases, and is healthy and environmentally friendly; the damp-poof wallpaper easy to clean can emit a light sandal wood smell so as to be capable of calming and soothing the nerves, promoting the circulation of qi and warming the middle warmer, eliminating brain fatigue and promoting sleep.

The invention discloses a circuit board which comprises a first dielectric layer, a first circuit layer, a second dielectric layer and a second circuit layer. The first dielectric layer is provided with a first surface and a second surface, wherein the first surface is provided with at least one groove. The first circuit layer is arranged on the inner wall of the groove. Furthermore, the second dielectric layer is arranged in the groove and covers the first circuit layer; the second circuit layer is arranged in the groove; and the second dielectric layer is positioned between the first circuit layer and the second circuit layer. The invention also discloses a manufacture method of the circuit board.

The invention provides a sheet material with a three-layer structure and clothes. The sheet material comprises a first surface layer, a middle layer and a second surface layer which are sequentially arranged, the first surface layer is a macromolecule fiber layer plated with first metal, the middle layer is a macromolecule fiber layer plated with second metal, and the second surface layer is a water-tolerance macromolecule polymer coating. The sheet material is a light soft material, particularly applicable to military fields such as military operation command tents, anti-electromagnetic shielding clothes and electromagnetic shielding rooms and the fields such as aviation, aerospace and offshore wild rescue and used for military electronic countermeasures, military false targets and has electromagnetic shielding effects on 90db or more.

The invention relates to a substrate of a circuit board. The structure comprises an insulating base material layer, an epoxy resin composite material layer, an adhesive layer and a metal layer, which are sequentially stacked. The epoxy resin composite material layer is made of epoxy resin composite material. The epoxy resin composite material comprises epoxy resin modified by a carboxyl-terminated polymer, carbon nanotubes and inorganic dispersion material, wherein the carbon nanotubes account for 4.6% by weight to 16% by weight of the epoxy resin composite material. The invention further provides a manufacturing method of the substrate of the circuit board.

The invention discloses a high-temperature-resistant and corrosion-resistant magnesium alloy. The magnesium alloy is mainly prepared from the following components in percentage by mass: 4.5-6.9% of Mo, 6.6-8.8% of Zn, 2.3-3.2% of Zr, 0.1-0.6% of Sc, 0.1-0.5% of W, 1.2-1.8% of rare earth elements, and the balance of Mg and unavoidable impurities; and the unavoidable impurities are Ca, Al and the like, and the total amount of the unavoidable impurities is less than 0.05%. The prepared magnesium alloy has high-temperature resistance, corrosion resistance and good toughness, the tensile strength and the yield strength are also improved, the elongation is also increased, and the performance of the magnesium alloy is improved.