72 results about "Soft layer" patented technology

An environment-friendly polishing disc is manufactured by a processing technology that includes: preparing a table, drying oven, cutting tools, upper and lower molds, polishing powder, a batching barrel, and a polyurethane synthetic resin comprising HC8968 and HC8552; cutting a polyester-fiber upper backsheet and a lower backsheet to match the mold profile; batching the polishing powder with the polyurethane resin and uniformly mixing with a vibrator; pouring the mixture into the lower mold over the lower backsheet, scraping the surface, overlaying the upper backsheet, and clamping with the upper mold; sequentially drying the clamped assembly at about 45° C. for about 230 min, about 92° C. for about 230 min, and about 60° C. for about 450 min; and removing the molds to form the disc. An optional central notch may be provided. The process reduces external polishing consumables and supports uniform soft-layer formation.

The invention provides a rotor surface treatment process, and relates to the technical field of surface treatment.The rotor surface treatment process is characterized in that a coating sequentially comprises a soft layer A, a hard layer B and a toughening layer C from a base body to the outside; the soft layer A is a metal lubricating composite layer formed by metal Mo or W and C or S with increasing content; the hard layer B is formed by metal nitride or carbonitride; a continuous component and structure gradient region is arranged between the soft layer A and the hard layer B; and the toughening layer C is a nanocrystalline-amorphous mixed structure formed by solid micro-diffusion of the hard layer B at 320-420 DEG C. Periodic micro-pits are formed in the surface of the toughening layer C and can be used for storing a lubricating medium. Through component gradient design and process hardening and tempering, the binding force, the wear resistance, the impact resistance and the stripping resistance of the coating are remarkably improved, the service life of the coating is prolonged, and the service life of the coating is prolonged. The method is suitable for high-load and high-friction working conditions such as vacuum pump rotors.

The invention discloses a sodium alginate hydrogel medical dressing and a preparation method thereof, and particularly relates to the technical field of medical dressings, the sodium alginate hydrogel medical dressing comprises a material body, a material layer is mounted at the bottom of the material body, and a plurality of material liquid parts are fixed at the bottom of the material layer; the connecting mechanism comprises a connecting layer, a first arc layer and a second arc layer, the connecting layer is fixed to one side of the material body, the first arc layer and the second arc layer are hinged to the two sides of the connecting layer, the first arc layer is matched with the second arc layer, and a soft layer is fixed to one side of the first arc layer; through the arrangement of the connecting mechanism, the wound of a patient can be rapidly covered with the material layer, the operation time in the dressing change process is shortened, the infection risk increased due to the fact that the wound of the patient is exposed on the surface for a long time is avoided, and meanwhile the problem that an existing device is prone to further stimulation on tissue around the wound in the adhesion process is solved; and the pain and discomfort of the patient are relieved, so that the efficiency of the device is greatly improved.

The invention relates to a surgical puncturing and access device (1000) for layers of semi-rigid or soft material, which allows a cannula to be placed by inserting a trocar, for the transfer of liquid or gaseous fluids in intracorporeal cavities or in lumens (300). The device comprises: an insertion unit (100) for inserting a trocar-cannula assembly (1), formed by an essentially cylindrical external tubular piece (2) that contains a puncturing unit (50) and a drive unit (60) in an interior channel (30) thereof, the proximal part of the external cylindrical tubular piece (2) being connected, during operation, to a base unit (200) by means of a quick connection, the trocar-cannula assembly (1) being disposed inside a guide channel (33) in the puncturing unit (50); and a base unit (200) formed by a flexible base piece (7) with a thin adhesive sheet (8) that attaches same to the contact surface.

The steel sheet has a TS of 1180 MPa or more and less than 1470 MPa, and has high YS, excellent ductility, excellent press formability of the inside and the ends of the steel sheet, and high crack propagation resistance. A base steel sheet has a predetermined component composition, the Vickers hardness of the base steel sheet is 84% or less with respect to a position 1 / 4 of the sheet thickness from the surface of the base steel sheet, the base steel sheet has a surface soft layer satisfying the following formula (1), the structure in the surface soft layer is within a specific range, and the structure in the position 1 / 4 of the sheet thickness of the base steel sheet is within a specific range. In a 90-degree V bending test having a bending radius of 0.5 mm, the length of a crack progressing in the ridge direction from the end of a bent ridge is 200 [mu] m or less, the El when subjected to a notch tensile test after being subjected to a heat treatment at 170 DEG C for 20 minutes is 6.0% or more, and the El when subjected to a notch tensile test after being subjected to a heat treatment at 170 DEG C for 20 minutes by introducing a 2% tensile nominal strain and then being subjected to a heat treatment at 170 DEG C is 5.0% or more. (1) 20 < = X < = 120-3800 * [Sb]-1900 * [Sn].

Provided is a steel sheet having a TS of at least 980 MPa and less than 1,180 MPa and having high yield stress, excellent ductility, and excellent bending fracture resistance and fatigue characteristics. This steel sheet has: a predetermined component composition; a predetermined steel structure at a position corresponding to 1 / 4 of the sheet thickness; a soft surface layer having a thickness of 20-140 μm and a Vickers hardness that is at most 84% of the Vickers hardness at the position corresponding to 1 / 4 of the sheet thickness; a steel structure in which the area ratio of ferrite in the soft surface layer is 50.0-100.0%, the proportion of the number of ferrite grains having an area of at most 50 μm2 among ferrite grains of the soft surface layer is 0.01-0.99, and the proportion of the number of ferrite grains having a rolling-direction length / sheet-thickness direction length of greater than 1.00 among the ferrite grains is at least 0.55; and a tensile strength of at least 980 MPa and less than 1,180 MPa.

The application discloses a discrete doll-in-doll type periodic vibration reduction and isolation pile and a laying method thereof, and comprises: a plurality of discrete doll-in-doll type vibration reduction and isolation single piles arranged according to a square lattice; each single pile structure comprises a local resonance concrete layer, a rubber soft layer and a steel pipe wrapping layer which are sequentially and multi-layered nested; the single pile as a whole presents a doll-in-doll type structure, and the cross section of each single pile is circular, and the rubber soft layer is arranged in a discrete type along the ring direction. The pile utilizes the band gap characteristics of the periodic structure to inhibit environmental vibrations with frequencies in the attenuation domain range, so as to reduce the adverse effects of environmental vibrations such as rail transit operation and earthquakes; the pile can break the limitation that the traditional periodic vibration reduction and isolation pile is not conducive to isolating low-frequency vibration waves in a limited site; the pile can make up for the defect that the traditional periodic vibration reduction and isolation pile can only isolate vibrations in a single frequency band, and realizes multi-frequency band vibration reduction and isolation application; the pile has strong geometric variability, can be targeted to attenuate environmental vibrations in different frequency bands, and has good durability and high operability.

The utility model relates to a sound-proof rubber and plastic plate with a moisture-proof and waterproof joint, which comprises a hard layer, a top soft layer and a bottom soft layer, the top soft layer and the bottom soft layer are respectively adhered and fixed above the hard layer and below the hard layer, a plurality of first sealing bulges are formed on the outer walls of two adjacent sides of the hard layer at intervals, and a plurality of second sealing bulges are formed on the outer walls of two adjacent sides of the hard layer. A plurality of second sealing protrusions are formed on the outer walls of the other two adjacent sides of the hard layer at intervals, and the first sealing protrusions and the second sealing protrusions are distributed in a staggered mode in the thickness direction of the hard layer. When the rubber and plastic plates are combined and spliced, a labyrinth type sealing structure can be formed between every two adjacent rubber and plastic plates by means of insertion connection of the first sealing protrusions and the second sealing protrusions in the two adjacent rubber and plastic plates, and infiltration of water at the joint of the two rubber and plastic plates is reduced; besides, through the arrangement of the honeycomb hole groups in the hard layer and the matching arrangement of the top soft layer and the bottom soft layer with the hard layer, the rubber and plastic plate can better improve the sound insulation effect.

The utility model relates to the technical field of screen protection films, and discloses an ultrathin folding screen integrated protection film without an interface adhesive layer, which comprises an interface adaptation layer, a dynamic buffer layer and a surface function layer which are sequentially connected, the surface function layer adopts an HC film, the dynamic buffer layer adopts a polyurethane optical elastomer, and the interface adaptation layer is made of an adhesive layer. And the dynamic buffer layer is integrated with the surface functional layer in a coating manner. According to the utility model, the dynamic buffer layer is integrated with the surface functional layer in a coating manner, so that an OCA (Optical Clear Adhesive) layer added between the HC film and the buffer layer of the traditional folding screen protective film is integrally reduced, one procedure can be reduced in the whole preparation process, the yield is improved, the overall thickness of the protective film is effectively reduced, and the production cost is reduced. The structure can be reduced to 65% of that of a traditional structure, the touch operation can be more sensitive, fingernail indentation residues caused by an OCA soft layer are eliminated, and the overall structure is more stable.

Provided is a technique for a steel sheet having a TS of 780 MPa or more and less than 1180 MPa, high YS, and excellent press formability of the inside and the ends of the steel sheet. A steel sheet in which a base steel sheet has a prescribed component composition and a Vickers hardness of 84% or less with respect to a position 1 / 4 of the sheet thickness from the surface of the base steel sheet, and which has a surface soft layer satisfying the following formula (1), the structure in the surface soft layer being within a specific range, and the structure in the position 1 / 4 of the sheet thickness of the base steel sheet being within a specific range, and a tensile strength of 780 MPa or more but less than 1180 MPa. 20 < = X < = 120-3800 * [Sb]-1900 * [Sn]... (1) (In formula (1), X is the thickness ([mu] m) of the soft surface layer, and [Sb] and [Sn] are respectively the contents (mass%) of Sb and Sn in the steel.

This application relates to the field of footwear technology and provides a protective children's shoe, including an upper and a sole. An anti-collision part is provided at the front of the sole, extending towards and connecting to the upper. The anti-collision part includes a soft layer, a protective layer, and a cushioning layer arranged sequentially from the inside out, with the protective layer having a higher hardness than the soft layer. This protective children's shoe aims to maintain good wearing comfort while effectively protecting the wearer's toes.

A watch strap and a watch. The watch strap comprises: a first soft layer (10) and a second soft layer (20), wherein the first soft layer (10) and the second soft layer (20) are fitted against each other; and an interlayer (30), which is arranged between the first soft layer (10) and the second soft layer (20), wherein the elongation rate of the interlayer (30) is less than the elongation rates of the first soft layer (10) and the second soft layer (20). Therefore, the watch strap achieves a balance between hardness and ductility, thereby improving the wearing comfort of users.

The utility model discloses an outdoor air mattress of sleeping comfortable, it includes upper cover layer, buffer soft layer, intermediate film layer and lower interface layer from top to bottom in proper order, and the edge of upper cover layer, the edge of intermediate film layer and the edge of lower interface layer form the connecting ring edge after high -frequency heat -sealing, buffer soft layer fixedly connected on the lower surface of upper cover layer, and be located in the inside of air mattress, be equipped with airtight inflation chamber between intermediate film layer and lower interface layer, be equipped with at least one inflation position on lower interface layer, be equipped with a plurality of drawstring subassembly between intermediate film layer and lower interface layer, the utility model is equivalent to additionally set up upper cover layer, buffer soft layer and heat preservation aluminum film on the top of existing inflation chamber, and upper cover layer is used for directly and human body contact, and buffer soft layer can effectively increase the sleeping comfortable feeling of user, and heat preservation aluminum film can effectively promote the heat preservation effect of air mattress, in the process of camping outdoors, user lies on the air mattress, is comfortable and warm, is very comfortable, and the practicality is strong.

A watchband and a watch. The watchband comprises a first soft layer (10) and a second soft layer (20), the first soft layer (10) and the second soft layer (20) are arranged in mutual adhesion; a sandwich layer (30) is arranged between the first soft layer (10) and the second soft layer (20); wherein the elongation of the sandwich layer (30) is less than the elongation of the first soft layer (10) and the second soft layer (20), so that the watchband realizes balance between softness and ductility, and improves the wearing comfort of the user.

The utility model discloses a gearbox sound insulation package belongs to the industry, including protection mechanism, and protection mechanism includes gearbox protection shell, and the inside of gearbox protection shell is provided with the acupuncture cotton for the purpose of shock attenuation, and the inner core of acupuncture cotton is filled with the configuration cavity groove for assembling, and the edge of configuration cavity groove is provided with the hard layer of cladding for the purpose of toughening, and the middle part of gearbox protection shell is provided with the cavity groove for wrapping up the main structure of gearbox, and the slot position of cavity groove is sequentially arranged and is provided with soft layer, intermediate layer and hard layer, and three layers of different purpose hierarchical structure are pressed to make, and the position of soft layer is PU foamed material, and the position of hard layer is EVA or acupuncture cotton, and the position of intermediate layer is PAPE film, and through the acupuncture cotton and the configuration cavity groove of built -in better first show gearbox package cladding, can also avoid receiving external impact while increasing the effect of protection to gearbox, and can effectively form a protection space with gearbox outside and realize protection in the position of cavity groove and adjusting cavity groove and configuration cavity groove.

The purpose of the present disclosure is to provide shock-absorbing flooring material (flooring material) that maintains an absorption effect of a soft layer while also having excellent load bearing properties. A flooring material (1) according to the present embodiment comprises a flooring upper material (11), a flooring substrate material (12) provided below the flooring upper material (11), and an intermediate material (13) provided between the flooring upper material (11) and the flooring substrate material (12). The flooring substrate material (12) is formed from a resin material and has a foam structure. The intermediate material (13) is formed from a material that includes a thermoplastic resin and an inorganic filler. In a three-point bend test in accordance with JIS K7074, the strain (ε(σmax)) at which bending strength is a maximum is not less than 0.5%, and the flexural modulus is not less than 1 GPa.

To provide a laminate that reduces the time and effort required to separate plastics from the laminate. [Solution] The laminate (10) comprises a vapor-deposited layer (2) having a first surface (2a) and a second surface (2b). The laminate (10) further comprises a hard plastic layer (1) located on the first surface (2a) side of the vapor-deposited layer (2) and a soft plastic layer (4) located on the second surface (2b) side of the vapor-deposited layer (2). The laminate (10) satisfies either requirement (1) or (2) below. (1) The plastic soft layer (4) has a strain property such that its shrinkage rate at 80°C is between 2% and 50%. (2) The vapor deposition layer (2) is further provided with a plastic strain layer (3) located on the first surface (2a) side and facing the vapor deposition layer (2) via the plastic hard layer (1).

This invention belongs to the field of tunnel support technology and solves the problem of poor stability of hydraulic support bases in existing technologies. This invention provides a hydraulic support base, comprising: a housing; a soft pressure plate and a hard pressure rod vertically movably disposed at the bottom of the housing; a probe vertically extendable and retractable within the hard pressure rod; a sensing spring linked to the probe; a fixed stroke threshold S set on the probe's retraction path; and a mode switching mechanism driven by the probe when its retraction stroke reaches the fixed stroke threshold S. When the probe's retraction stroke reaches the fixed stroke threshold S, the mode switching mechanism locks the base in a soft contact mode where the soft pressure plate supports the hard floor of the tunnel; when the probe's retraction stroke does not reach the fixed stroke threshold S, the mode switching mechanism switches the base to a hard contact mode where the hard pressure rod inserts and compacts the soft layer of the tunnel floor, supporting the base on a hard substrate. This invention has the advantage of strong stability on both hard and soft floor surfaces.

The invention relates to the related technical field of metal cutting, in particular to a metal material cutting device which comprises a machining bed body, a portal frame, a movable seat, a driving assembly, an elastic compression part, a tool apron, a cut-off tool, a material pressing module and a bottom support module. Stepped differential material pressing is achieved through the rigid presser foot area and the flexible buffer area of the material pressing block, and the rigid material pressing strip is used for accurately anchoring a cut-off line to prevent tearing. When a soft layer is cut, the bottom movable bearing block flexibly avoids and is linked with the inertia roller to reconstruct extrusion potential energy into mechanical energy dissipation; when a hard layer is cut, based on cutting counter-force perception, the trigger block is linked with the limiting rod for smooth unlocking so as to release material pressing force, and meanwhile, the extrusion piece extrudes instantly to achieve rigid pier supporting. The contradiction of'soft cutting tearing and hard cutting collapsing 'under single rigidity is solved, and high-quality forming of notches of heterogeneous composite boards is guaranteed.

This invention discloses a method for preparing a highly transparent, high-surface-hard, and bendable coating, comprising the following specific steps: Step 1, mixing nanoparticles, a curable organic mixture, and an initiator to prepare a hard coating layer; mixing the curable organic mixture and the initiator to prepare a soft coating layer; Step 2, applying the soft coating layer to a substrate surface and subjecting it to photocuring or thermal curing treatment, thereby obtaining a pre-cured soft layer that is not fully cured by controlling the curing time; Step 3, applying a hard coating layer onto the pre-cured soft layer and subjecting it to photocuring or thermal curing treatment. The coating structure obtained by the preparation method of this invention sequentially includes a soft layer, a gradient layer, and a hard layer, simultaneously possessing high surface hardness, excellent bend resistance, and high transparency, solving the technical problem that traditional coating manufacturing processes cannot simultaneously achieve both surface hardness and bend resistance.

To provide a vibration control system capable of eliminating the deterioration of the vibration control effect of a BMD caused by the operation limit of an elevator and exhibiting the vibration control effect higher than before.SOLUTION: The non-core portion 22 has a soft layer portion 31 located in a middle portion in a height direction of the high-rise building 2, a lower layer portion 4 located below the soft layer portion 31, and an upper layer portion 5 located above the soft layer portion 31, and the core portion 21 is connected to the lower layer portion 4 and is provided up to a height reaching the upper layer portion 5. The soft layer part 31 has a horizontal rigidity smaller than those of the lower layer part 4 and the upper layer part 5, connects the lower layer part 4 and the upper layer part 5 so as to be relatively movable in the horizontal direction, and is configured so that a vibration period of a region combining the soft layer part 31 and the upper layer part 5 and a vibration period of a region combining the lower layer part 4 and the core part 21 are synchronized with each other.SELECTED DRAWING: Figure 1

The utility model discloses a shock-absorbing base of a construction waste vibrating screen, which relates to the technical field of shock-absorbing bases and comprises a support component and a buffer mechanism mounted on the support component. The buffering mechanism comprises a first clamping plate, a second clamping plate, an elastic supporting assembly, a first annular clamping groove, a second annular clamping groove and a dustproof assembly. The dustproof assembly comprises a strip soft layer, elastic strips fixed to the two opposite sides of the strip soft layer respectively, and a connecting piece for detachably fixing the strip soft layer end to end to form an annular cover. The clamping device has the advantages that the first clamping plate and the second clamping plate are wrapped by the formed annular cover, and the upper end and the lower end of the annular cover are arranged in the first annular clamping groove and the second annular clamping groove respectively, so that the annular cover is stabilized to wrap the first clamping plate and the second clamping plate; dust particles and water can be greatly prevented from entering the first clamping plate, the second clamping plate and the elastic supporting assembly, so that the service life is greatly prolonged; and the annular cover can be detached through the arranged connecting piece, so that cleaning and replacement are facilitated.

The invention discloses congruent nano eutectic-amorphous layered composite ceramic and a preparation method thereof, and belongs to the technical field of composite ceramic. The composite ceramic is formed by alternately stacking hard nano eutectic layers and soft nano amorphous layers. According to the layered structure formed by alternately overlapping the soft layer and the hard layer, the crack propagation energy is absorbed through plastic deformation of the amorphous layer, the crack deflection is induced by a soft interface and a hard interface, and the crack initiation is hindered in cooperation with the high hardness of the nano eutectic layer, so that the crack initiation and propagation resistance of the oxide eutectic ceramic during solidification forming can be effectively improved.

The application discloses a wear-resistant nanometer gradient composite coating and a magnetron sputtering method thereof, and belongs to the technical field of material surface treatment. The wear-resistant nanometer gradient composite coating is composed of oxide nanoparticles and a soft layer. The soft layer is coated on the outside of the oxide nanoparticles during friction. The oxide nanoparticles gradually decrease from the surface to the center of the coating, and the soft layer gradually increases from the surface to the center of the coating, forming a reverse composite gradient layer. The soft layer and the oxide nanoparticle layer are obtained through the magnetron sputtering method. The soft layer is composed of Ag and Cu soft metals. The oxide nanoparticles are Fe2O3 nanoparticles. The oxide nanoparticles have a bearing effect, and can reduce fretting wear of the material through rolling. The soft metal has a coating and bonding effect on the nanometer oxide particles. The wear-resistant nanometer gradient composite coating and the magnetron sputtering method thereof can solve the problem that the existing wear-resistant nanometer hard coating is easy to peel off, thereby affecting the service life of the coating.

This utility model discloses a sponge abrasive block that can be used for both hard and soft abrasives, relating to the field of sponge abrasive block technology. It includes a connecting frame and a rotating shaft. The connecting frame has rotating shafts rotatably connected to both sides, and a connecting plate is fixed between the rotating shafts. During use, rotating the adjusting screw moves the moving block and the fixing pin, thus releasing the connection with the fixing hole and unlocking the connecting plate. This allows for the interchange of high-hardness sponge and soft / hard sponge by flipping the connecting plate. By combining sponge layers of different densities, it is suitable for various materials such as metal, wood, plastic, and paint. It enables rapid removal of imperfections on the hard layer and efficient polishing with the soft layer, improving its practicality and flexibility. Furthermore, the first, second, third, and fourth hook and loop fasteners allow for the replacement of sandpaper, making operation simple and convenient.

The utility model discloses a floating-line fabric of a composite TPU (thermoplastic polyurethane) film, and relates to the technical field of composite fabrics. According to the technical scheme, the fabric is characterized by comprising a base layer, a plurality of concave grooves are formed in one side of the base layer in a hot-pressing mode, a plurality of fluffs are fixed in the concave grooves in a flocking mode, a TPU film is compounded on the side, provided with the fluffs, of the base layer, a soft layer is fixedly connected to the other side of the base layer, and the soft layer is provided with a plurality of floating lines. The graphene yarn is added, the heat conduction efficiency of the graphene yarn is high, the temperature rising speed of the fabric is increased, the fabric can be kept in a warm state for a long time, and the warm comfort of wearing is guaranteed.

The invention provides a composite partition plate for a lamination process of a copper-clad plate, which comprises a soft layer clamped between two hard layers, the soft layer is made of carbon fiber and heat-resistant resin, and the hard layers are made of stainless steel. The invention further provides application of the composite partition plate in a copper-clad plate pressing process. The composite partition plate disclosed by the invention is used for a copper-clad plate laminating process, and can improve the adhesion of each layer of the laminated copper-clad plate, effectively conduct heat and reduce the weight of the composite partition plate, thereby overcoming the technical threshold of thinning the copper-clad plate and saving energy.

The invention discloses a method for determining support parameters of an upper-soft and lower-hard tunnel face of a deep tunnel. The method mainly comprises the following steps: (1) determining the thickness of an upper soft layer of the tunnel face; (2) calculating the front damage width of the soft layer surrounding rock on the tunnel face; (3) calculating the collapse height above the tunnel face; (4) calculating the collapse range above the tunnel face; (5) calculating the collapse gravity above the tunnel face; (6) calculating the supporting resistance required by an unsupported section; and (7) calculating the supporting resistance required by the upper soft layer tunnel face. The method is provided for calculating the condition that the deep tunnel face has a soft-top and hard-bottom stratum and calculating the tunnel support resistance under the condition that the face-unsupported section is unstable; the influence of different lengths of non-supported sections and thicknesses of soft layers on different tunnel faces on the support resistance and the collapse range above can be evaluated, reference is provided for determining corresponding support strength and support parameters, and design and construction units can optimally design the support theoretically.

Provided is a skeleton member having a tensile strength of 980 MPa or more and 1.8 GPa or less and excellent axial crushing characteristics. A skeleton member using a steel plate having a base steel plate, the skeleton member having a cross-sectional shape having a top plate portion extending in the width direction and two vertical wall portions extending in a direction different from the extension direction of the top plate portion from both ends of the top plate portion in the width direction, the base steel sheet of the top plate part has, on the surface layer thereof, a surface layer soft layer having a Vickers hardness of 84% or less of the Vickers hardness at a position of 1 / 4 of the sheet thickness, the thickness of the surface layer soft layer satisfying the following formula (1), and the tensile strength is 980-1.8 GPa. (1) 20 < = X < = 0.1 * t-3800 * [Sb]-1900 * [Sn], where X is the thickness ([mu] m) of the surface soft layer, t is the thickness ([mu] m) of the base steel sheet, and [Sb] and [Sn] are respectively the contents (mass%) of Sb and Sn in the base steel sheet.

The invention belongs to the technical field of coating materials, and particularly relates to a high-toughness self-organizing nano multilayer structure oxynitride coating and a preparation method thereof. The high-toughness oxynitride coating with the self-organizing nano multi-layer structure sequentially comprises a base body, a CrN transition layer and an AlCrNbSiON self-organizing nano multi-layer from bottom to top, and the self-organizing nano multi-layer is formed by alternately depositing a nitrogen-rich layer and an oxygen-rich layer. Wherein the nitrogen-rich layer is a hard layer, the oxygen-rich layer is a soft layer, and the nitrogen-rich layer and the oxygen-rich layer alternately form a'hard and soft 'nano multilayer structure. Due to the fact that the cracks are prone to being generated and propagated in the hard layer, when the cracks extend to a multi-layer interface, the high damage tolerance of the soft layer can effectively absorb energy and passivate the tips of the cracks, and therefore the cracks generated in the hard layer are prevented from continuing to propagate; and meanwhile, the coating can integrate the advantages of multiple strengthening mechanisms such as modulus difference strengthening, nano multi-layer strengthening and coherent strengthening, so that the toughness and hardness of the coating are synchronously improved.