235 results about "Soft layer" patented technology

The invention further discloses a preparation method of the wide-temperature-range, high-performance and high-binding-force soft and hard composite coating. The preparation method comprises the steps of cleaning, ion implantation, preparation of a soft layer metal Ti, preparation of a hard layer TiZrAlCrSiMN, preparation of a soft layer metal Zr and preparation of the hard layer TiZrAlCrSiMN. The invention further discloses application of the wide-temperature-range, high-performance and high-binding-force soft and hard composite coating in a dry cutting tool. The invention discloses the wide-temperature-range high-performance high-binding-force soft and hard composite coating which is prepared through the preparation method, and the wide-temperature-range high-performance high-binding-force soft and hard composite coating solves the problems that an existing tool coating is low in high-temperature hardness, poor in abrasion resistance and poor in erosion resistance and cracking resistance.

Provided for is a mattress comprising a first layer comprising a first firm layer and a first soft layer, a second layer comprising a second firm layer and a second soft layer, where the second layer and the first layer are in horizontal adjacent contact. The mattress may further comprise a base layer comprising a base top layer and a base bottom layer, where the base layer and the first layer are in vertical adjacent contact, and where the base layer and the second layer are in vertical adjacent contact. The mattress may further comprise a cover comprising a cover top, a cover bottom, and a zipper, where the zipper may separate the cover top from the cover bottom, where a band may be disposed on an inside surface of the cover top, where the band may mask a gap between the first layer and the second layer.

The invention discloses an anti-bending data connecting line and a preparation method thereof, and relates to the technical field of data line preparation, polyethylene is coated on the surface of a conductor to form an insulating layer, a braid layer is arranged outside the insulating layer, a shielding layer is arranged outside the braid layer, and modified resin is coated outside the shielding layer to form a protective layer, so that the anti-bending data connecting line is prepared. The modified resin is prepared from the following raw materials: PVC paste resin, modified polyurethane, allyl alcohol glycidyl ether, dioctyl phthalate, trimethylolpropane trimethacrylate, a modified filler and 4, 4 '-diaminodiphenylmethane through banburying, the modified filler takes a carbon nanotube as a hard core, polyborosiloxane is coated as a soft layer, and the soft layer is coated with polyborosiloxane. The polymethyl methacrylate is of a special core-shell structure with a hard shell, when the polymethyl methacrylate is subjected to external force, a shell layer in the modified filler can promote cracks to deflect when reaching a core-shell interface, and the deflection of the cracks increases a crack propagation path, so that energy is absorbed, and the toughness of the modified resin is improved.

Disclosed in the present application are a conductive particle, a PC conductive composite material, a preparation method and a plastic tape material. The conductive particle comprises a hard core body, a soft layer and a conductive layer, the soft layer coating the hard core body, and the conductive layer coating the surface of the soft layer. The conductive layer comprises carbon nanotubes, the carbon nanotubes being dispersed in the conductive layer. The core-shell structure of the different layers can enhance toughness, and improve the dispersity of the carbon nanotubes. Therefore, the conductive particle has good toughness, and good carbon nanotube dispersity, can uniformly conduct electricity, and can enhance toughness and avoid static electricity when being used for a plastic tape material. The preparation method comprises: carrying out first coating treatment of a paste containing a soft material on the surface of a hard core body so as to form a soft layer; and performing second coating treatment of a conductive material on the surface of the soft layer so as to form a conductive layer, thus obtaining a conductive particle, the conductive material comprising carbon nanotubes. The PC conductive composite material comprises PC and the conductive particles. The plastic tape material comprises a base layer and an anti-static layer, the anti-static layer containing the PC conductive composite material.

The utility model relates to the technical field of cables, and discloses a multilayer wear-resistant anti-cutting cable, which comprises a cable core, an insulating layer, a soft layer, a separation layer and a wear-resistant outer layer, the outer surface of the cable core is fixedly sleeved with the insulating layer, the outer surface of the insulating layer is provided with the soft layer, the outer surface of the soft layer is provided with the separation layer, and the wear-resistant outer layer is sleeved with the separation layer. The outer surface of the separation layer is fixedly sleeved with a wear-resistant outer layer. The cable also comprises a structure which is arranged between the insulation layer and the soft layer and is used for preventing the cable core from being cut. According to the utility model, the structure is simple, the problem that the cable has a potential safety hazard that the cable is easy to break due to the abrasion of the cable protection layer is solved, and the cable core in the cable is protected from being cut by sharp articles, so that the transmission of cable signals through the cable core is protected.

The invention provides a reinforcing method for a soft and hard interbedded side slope, which comprises the following steps: calculating the replacement depth according to the average strength of a hard layer and the strength of a soft layer, gradually replacing and filling the soft layer with reinforced concrete from bottom to top to form a plurality of cross beams, slotting a hard rock layer and pouring longitudinal beams to jointly form a lattice beam and completely embedding the lattice beam in the side slope; anchor rod holes are drilled in the intersections of the cross beams and the longitudinal beams, holes are expanded in the soft and hard layer interfaces, and the main anchor rods are connected with the slide-resistant piles and protrude at the expanded positions to adapt to the hole diameter; arranging a self-drainage anchor rod; and finally, a polyurethane foaming material is sprayed on the slope surface, and net hanging and guniting are conducted. According to the method, the soft and hard interbed side slope can be effectively reinforced, the anchoring effect of the anchor rod is enhanced, the skid resistance and stability of the soft and hard interbed side slope are greatly improved, and the method has important significance on prevention and treatment of geological disasters such as landslide and collapse of the soft and hard interbed side slope.

The present invention relates to a nail sticker and the nail sticker is a curable nail sticker. The nail sticker includes a soft layer, the soft layer includes a resin for the soft layer, and the resin for the soft layer may include at least one of cellulose acetate butyrate and cellulose acetate propionate.

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 utility model discloses a noise reduction structure of a wall breaking machine, which comprises a main machine and a noise reduction device, a crushing space is formed in the wall breaking machine, and a handle part is fixed on the wall breaking machine; a cover body; a knife group; a soft layer used for reducing noise is arranged on the inner wall of the smashing space, and a sealing edge used for sealing and reducing noise is arranged on the cover body. According to the utility model, the soft layer is arranged on the inner wall of the crushing space in a secondary forming manner, and the sealing edge is sleeved on the cover body, so that noise generated by high-speed rotation of the knife group is blocked in the crushing space, an excellent noise reduction effect is provided, a sound-proof cover is prevented from being covered on the wall breaking machine, the operation is more convenient, and the noise reduction effect is better. Meanwhile, the noise reduction device is simple in structure, easy to implement, suitable for noise reduction treatment of various household appliances and wide in application prospect.

The utility model relates to the technical field of low-frequency sound insulation, in particular to a low-frequency sound insulation mortar structure which comprises bearing columns, first steel bar sets are fixedly installed in the bearing columns, a wall body mechanism is arranged between the bearing columns, a base mechanism is arranged at the bottom ends of the bearing columns, and the wall body mechanism comprises a brick body wall. The brick body wall is fixedly installed between the bearing columns, sound insulation mechanisms are arranged at the front end of the brick body wall, the heavy balls coated with the soft layers are placed in the base body formed by combining the whole sound insulation mechanisms to form the resonance unit with low frequency, and when the frequency of elastic waves propagated in the base body is close to the resonance frequency of the resonance unit, the sound insulation mechanism is arranged on the brick body wall. The resonance structure units and elastic waves generate a strong coupling effect, so that the elastic waves cannot be continuously propagated forwards, thereby causing the generation of band gaps, realizing the control of large wavelength by small size, and generating a sound insulation effect.

The utility model discloses a drying device for ceramic rod processing, which is applied to the field of ceramic rod drying and comprises a shell, a plate body is arranged in the shell, an electric telescopic rod is fixedly mounted on one side of the plate body, when a ceramic rod is dried, an operator feeds the ceramic rod from one end of the shell, and the electric telescopic rod is fixedly mounted on the other end of the plate body. The ceramic rod is taken to be located between the two contact plates, then the electric telescopic rods are operated, and the electric telescopic rods operate to drive the contact plates and the soft layers to get close to the two ends of the ceramic rod till the ceramic rod is clamped and fixed. At the moment, an operator can release the force applied to the ceramic rod, and when the plate body moves into the shell, the fan runs to transfer external air into the inner shell through the pipeline, so that the air is heated by the electric heating wire and then is blown to the ceramic rod through the air outlet head. Through the arrangement, the upper portion and the lower portion of the ceramic rod can be heated evenly, the ceramic rods of different sizes can be clamped and used conveniently, and compatibility is improved.

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 provides a continuous casting machine crystallizer and a continuous casting machine. The continuous casting machine crystallizer comprises a copper pipe and a water jacket, the water jacket is connected to the periphery of the copper pipe in a sleeved mode, a plurality of grooves longitudinally extending along the copper pipe are formed in the outer wall of the copper pipe, the water jacket is composed of a base body layer and a soft layer, the soft layer is tightly connected with the inner wall of the base body layer, the soft layer is made of flexible materials, and the material hardness of the soft layer is smaller than that of the copper pipe. The problem that components such as the copper pipe are damaged during assembly can be avoided, preferably, no gap exists between the inner wall of the soft layer and the outer wall of the copper pipe, the cooling efficiency and the cooling uniformity can be improved, and the assembly difficulty and the assembly cost are reduced.

The utility model discloses a cutting device applied to a mattress gluing machine. The cutting device comprises a gluing machine body, a cutting device and a displacement mechanism, the mucilage glue machine body is used for bonding the mattress and bonding continuous interlayers above and below the mattress, and the mucilage glue machine body can bond continuous / discontinuous soft layers above and / or below the mattress; the cutting device is arranged at the gluing machine body and is used for cutting all interlayers and / or soft layers between two adjacent mattresses; the displacement mechanism is used for driving all the cutting devices to move in the longitudinal direction so as to cut all the interlayers and / or the soft layers at a time, the cutting device for longitudinal displacement cutting is arranged, so that the sections of the interlayers and / or the soft layers are neat, and the quality of finished products is improved; meanwhile, the distance between the two adjacent mattresses only needs to meet the requirement of the cutting device for cutting, so that the allowance of the interlayer and / or the soft layer needing to be reserved is effectively reduced, and the production cost is reduced.

The invention relates to a soft layer belt deformation modulus selection method, which comprises the following steps that soft layer belts are classified, measuring points are arranged, and it is ensured that each classified soft layer belt has a preset number of measuring points; carrying out a bearing plate test on the rock mass below the measuring point to obtain a deformation modulus value; carrying out a bearing plate test in a vertical layer belt direction on the test point of the soft layer belt to obtain a corresponding comprehensive deformation modulus value; measuring the thickness of the soft layer of the measuring point, and calculating to obtain the thickness of the rock mass under the measuring point participating in the testing; based on a common bearing principle, obtaining a deformation modulus calculation formula of the soft layer belt, and substituting a known quantity to obtain the deformation modulus of the soft layer belt; according to a deformation modulus calculation formula of the soft layer belt, calculating to obtain a stress deformation modulus value of the soft layer belt at the measuring point; and establishing a soft layer belt deformation modulus valuing principle, and determining a geological suggested value of the soft layer belt deformation modulus of the type according to the average value of the deformation moduli of the measuring points of the same type.

To provide a steel sheet and a member with a TS of 590 MPa or more, high YS, high press formability (ductility, flangeability, and bendability), and fracture resistance characteristics (bending fracture characteristics and axial crushing characteristics) in case of a collision, and a method for producing them. A base steel sheet has a specified chemical composition. When nanohardness is measured at 300 points or more in a 50 pm x 50 pm region on a sheet surface at a quarter depth position in the thickness direction of a surface soft layer from the surface of the base steel sheet, the ratio of a nanohardness of 7.0 GPa or more is 0.10 or less, the nanohardness of the sheet surface at the quarter depth position in the thickness direction of the surface soft layer from the surface of the base steel sheet has a standard deviation σ of 1.8 GPa or less, and the nanohardness of the sheet surface at a half depth position in the thickness direction of the surface soft layer from the surface of the base steel sheet has a standard deviation σ of 2.2 GPa or less.

Provided is a framework member that has a tensile strength between 980 MPa and 1.8 GPa (both inclusive) and is excellent in axial collapse characteristics.　This framework member uses a steel sheet having a base steel sheet. A cross-sectional shape thereof includes a top plate portion extending in the width direction and two vertical wall portions extending from both ends in the width direction of the top plate portion in a direction different from the extension direction of the top plate portion. The base steel sheet of the top plate portion includes, in the surface layer, a surface layer soft layer of which the Vickers hardness is 84% or less of that at a 1 / 4 sheet thickness position. The thickness of the surface layer soft layer satisfies the following formula (1). The tensile strength of the framework member is between 980 MPa and 1.8 GPa (both inclusive). (1): 20 ≤ X ≤ 0.1 × t - 3800 × [Sb] - 1900 × [Sn] In the formula, X is the thickness (μm) of the surface layer soft layer, t is the thickness (μm) of the base steel sheet, and [Sb] and [Sn] are the contents (mass %) of Sb and Sn in the base steel sheet, respectively.

The utility model discloses an arc angle vacuum storage bag with a hand pricking prevention function, and relates to the technical field of storage bags. The storage bag comprises a storage bag body, a double-bone zipper is arranged on the surface of the storage bag body, a protection combination assembly is arranged in the storage bag body, the protection combination assembly structurally comprises an outer layer, the outer layer is arranged on the inner wall of the protection assembly structure, an anti-pricking layer is arranged below the outer layer, and the anti-pricking layer is arranged below the outer layer. A vacuum fresh-keeping layer is arranged below the anti-pricking layer, and an inner layer is arranged below the vacuum fresh-keeping layer. Through mutual cooperation of the outer layer, the anti-pricking layer, the vacuum fresh-keeping layer, the soft layer and the like in the protection combination assembly, the storage bag can prevent sharp corners on the two sides from pricking hands when in use, and the sharp degree of the corners of the bag is reduced due to the design of the arc corners; due to the design of the soft layer, the risk that a user is punctured by sharp corners in the using process is reduced, and the bag is more convenient to take, lift and carry.

The utility model belongs to the technical field of medical instrument auxiliary tools, and particularly provides a soft instrument device barrel which comprises a barrel body, a soft layer and a protective layer. A cavity is formed in the barrel body and used for containing soft instruments. The soft layer is arranged at the bottom of the barrel body and faces the cavity; the protective layer is arranged on the surface of the soft layer. According to the medical instrument storage barrel, by arranging the soft layer, the effects of buffering and preventing vibration can be achieved, collision to soft instruments placed in the cavity of the barrel body is reduced, packages of medical instruments are protected against damage, it is guaranteed that the medical instruments are intact, safe supply of the medical instruments to an operation is guaranteed, and meanwhile the operation safety of a patient is also guaranteed; and by arranging the protective layer, the soft layer can be protected, the durability of the soft layer is improved, and then the service life of the soft instrument device barrel is prolonged.

The utility model relates to the technical field of protective shells, and discloses a screen adsorption type protective shell, which comprises a bottom shell, a screen plate shell, a soft layer and an adsorption module, two ends of the soft layer are respectively butted with the bottom shell and the screen plate shell, the soft layer is used for folding or unfolding the bottom shell and the screen plate shell, and the screen plate shell is used for covering a screen of electronic equipment; the adsorption module comprises two outer shell blocks and two outer plate blocks, the outer plate blocks are installed on the screen plate shell, the outer shell blocks are installed on the bottom shell, and the two outer shell blocks and the two outer plate blocks are in one-to-one correspondence and are arranged in an adsorption mode. Under the action of the soft layer, folding and unfolding of the bottom shell and the screen plate shell are realized, and meanwhile, a screen of the electronic equipment is protected through the screen plate shell; in the folding state, under the adsorption matching action of the two outer shell blocks and the two outer plate blocks, the adsorption force on the screen plate shell is improved, so that it is guaranteed that the screen plate shell is in the covering state, the screen plate shell is prevented from being opened by mistake, and then the covering effect of the screen plate shell and the folding effect of the protective shell are guaranteed.

A vehicle identification code plate, installation method, system, equipment and automobile belong to the technical field of identification code plates, and solve the problem that the existing design method not only affects the recognition of the VIN code, but also affects the appearance effect. The identification code plate includes a pre-adhesive layer, a VIN code sticker, a soft layer and an adhesive layer; one side of the pre-adhesive layer is adhered to one side of the VIN code sticker, and the other side of the pre-adhesive layer is adhered to the front windshield; one side of the soft layer is adhered to the other side of the VIN code sticker, and the other side of the soft layer is adhered to one side of the adhesive layer; the other side of the adhesive layer is adhered to the body sheet metal.

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.

A multi-index coupling performance evaluation method for a composite bulletproof insert plate, which is suitable for the overall performance evaluation of a composite bulletproof insert plate with hard layers and soft layers of different thicknesses stacked, and specifically includes the following steps: 1). Obtaining the performance parameters of bulletproof insert plates with different thickness combinations, including weight parameters, thickness parameters, and center of gravity offset parameters compared to the center; obtaining backing depression speed and depth parameters after penetration, and bullet residual kinetic energy parameters; 2). Establishing a parameter matrix, and transforming the parameter matrix into a high-order performance evaluation matrix through interpolation and normalization processing; 3). Setting weights for each evaluation index based on the design goal, multiplying all performance evaluation matrices with corresponding weights and then adding them to obtain a multi-index coupling performance evaluation matrix; 4). Drawing a three-dimensional surface map and a two-dimensional contour map of the coupling performance evaluation matrix, and evaluating the overall performance of bulletproof insert plates with different thickness combinations under the design weights through the size of the evaluation index.

The utility model discloses a buried laying structure for a pipeline crossing a river channel, and belongs to the technical field of pipeline construction. The utility model relates to an embedded pipe which is composed of a plurality of prefabricated pipeline underground units, adjacent pipeline underground units are spliced with each other, one pipeline underground unit comprises a hollow outer shell with two through ends, an embedded pipe is arranged in the outer shell, and the two ends of the embedded pipe are consistent with the outer shell in length. A concrete isolation layer is filled between the outer layer shell and the embedded pipe, a plurality of ground inserting rods are arranged on the lower surface of the outer layer shell, one end of each ground inserting rod is fixed to the outer layer shell, the other end of each ground inserting rod is inserted into a riverbed, and the outer layer shell of the pipeline buried unit is located in a riverbed soft layer. And the ground inserting rod is inserted into the riverbed hard layer. According to the technical scheme, by arranging the prefabricated parts, the installation space and area of the pipeline installation river in the river are constructed, and the construction efficiency of the pipeline penetrating through the river is greatly improved.

A blade includes a main body and an edge disposed around a periphery of the main body. A part of the edge includes a soft layer and an intermediate layer connected between the soft layer and the main body. The intermediate layer includes a soft component and a hard component stacked one on another when viewing in a cross-section along a width direction of the blade or along a length direction of the blade.

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].

The invention belongs to the technical field of fabrics, and particularly relates to a high-breathability and high-density fine denier polyester filament yarn fabric which comprises a base layer, a moisture guiding layer is arranged on the outer surface of the base layer so as to guide moisture and discharge sweat, a fireproof layer is arranged on the outer surface of the moisture guiding layer so as to prevent flame from spreading, and a soft layer is arranged on the inner surface of the base layer so as to improve comfort. The base layer is formed by weaving high-density fine-denier polyester filaments, and a foam layer is arranged on the outer surfaces of the high-density fine-denier polyester filaments. The foam layer is prepared from the following raw materials: polyurethane, acrylate, sodium bicarbonate, ammonium carbonate and a preservative. By arranging the moisture conducting layer, the fireproof layer and the soft layer, the high-density fine-denier polyester filament yarn fabric has the effects of moisture conducting, perspiration, flame retardance and skin friendliness, and then the function of the high-density fine-denier polyester filament yarn fabric is improved.

The utility model belongs to the technical field of mattresses, and particularly relates to a left-soft right-hard mattress which comprises independent bagged springs, a first hard layer is fixedly connected to the upper surfaces of the independent bagged springs, a separation layer is fixedly connected to the upper surface of the first hard layer, and the separation layer is formed by flatly laying a soft layer and a hard layer side by side. The soft layer is made of silica gel cotton, the hard layer is made of jute fiber, the upper surface of the separation layer is fixedly connected with a first soft layer, and the lower surface of the independent bagged spring is fixedly connected with a second hard layer. According to the mattress with the soft left part and the hard right part, the first soft layer and the breathable layer are arranged on the upper surface of the separation layer, transition of the two sides of the separation layer is buffered through the first soft layer and the breathable layer, the cutting feeling brought by the separation layer when the mattress is used is reduced, and the second hard layer and the breathable layer are arranged on the lower surface of the mattress; and the mattress can be turned over to be used as a common mattress.

The utility model provides an I-shaped cross section composite material box type structural member co-curing forming tool, which comprises a first tool, a second tool and two AIRPAD soft film tools, a rectangular bulge is arranged in the first tool to form a male die, the second tool is positioned above the rectangular bulge, a soft layer is arranged at one end of the second tool facing the rectangular bulge, and the two AIRPAD soft film tools are arranged on the second tool. The I-shaped composite material box-type structural part is arranged between the rectangular protrusion and the soft layer, the two AIRPAD soft film tools are attached to the outer surfaces of the two flanges of the I-shaped composite material box-type structural part respectively, and the problems that in the prior art, due to the fact that a traditional metal tool is complex in structure, large in manufacturing difficulty and high in manufacturing cost are solved. Due to the fact that a prefabricated material of an I-shaped frame or an I-shaped rib is pressed unevenly or cannot be effectively pressed through a traditional metal tool, layering and pores are formed in the I-shaped frame or the I-shaped rib, and the production cost of an enterprise is increased; and the nondestructive testing of the internal quality of the I-shaped frame or the I-shaped rib made of the composite material is not qualified.