163 results about "Hard metal" patented technology

The invention relates to a milling burr (1) for an electrically or pneumatically operated hand-held tool for deburring, shaping, grinding and finishing iron-free surfaces, comprising: - a shank portion (2) and - a milling portion (4) made of a hard metal, in particular tungsten carbide, which adjoins the shank portion (2) and ends in a milling tip (6), wherein the milling portion (4) has a milling length (f) and a plurality of cutting edges (10) which are separated by mutually spaced main flutes (14) which have a main flute depth (h) and extend helically in a first twist direction (16) with a first twist angle (α) along the milling length (f), wherein each of the cutting edges (10) has a rake face (20) and a relief face (24) and a cutting edge (12) at the transition of rake face (20) and relief face (24), forming a rake angle (γ) and a relief angle (δ). The milling burr (1) according to the invention is characterized in that said relief face (24) is a first relief face (24) and said relief angle (δ) is a first relief angle (δ), wherein the first relief face (24) is adjoined in the circumferential direction of the milling portion (4) by a second relief face (26) which extends at a second relief angle (ε), and, in the region of the milling portion (4) with the largest diameter, the first relief angle (δ) is in the range from 6° to 20° and the second relief angle (ε) is in the range from 8° to 30°, and the second relief angle (ε) is greater than the first relief angle (δ). The invention also relates to the use of such a milling burr (1).

The application discloses a kind of hard alloy cutter materials for deep hole machining, the cutter material is composed of the following weight percentage components: tungsten carbide: 75%~85%, wherein 0.2~0.4 μm superfine tungsten carbide particles account for 60%~80%, 0.4~0.8 μm tungsten carbide particles account for 20%~40%; Cobalt: 10%~15% titanium carbide: 2%~5%; Tantalum carbide: 1%~3%; Niobium carbide: 0.5%~2%; Vanadium carbide: 0.3%~1.0%; Chromium carbide: 0.2%~0.8%; Rare earth element: Y2O3 Or La2O3: 0.1%~0.5%. The application breaks through the bottleneck of high temperature wear, insufficient strength and short service life of traditional hard alloy in deep hole machining through three-dimensional innovation of component design, structure control and surface strengthening, and provides an efficient solution for precision deep hole machining of high hardness materials.

The utility model relates to the technical field of oil seals, and discloses a high-pressure-resistant rotary oil seal. The high-pressure-resistant rotary oil seal is arranged on the outer side of a rotary shaft in a sleeving mode, and a rubber body, a framework and a check ring are sequentially arranged from top to bottom in the axial direction of the rotary shaft. The upper surface of the framework is adhered to the lower surface of the rubber body, and the check ring is adhered to the lower surface of the framework; the framework is a plastic ring made of high-temperature-resistant and high-pressure-resistant hard plastic, and the check ring is a metal ring made of high-temperature-resistant and high-pressure-resistant hard metal. According to the high-pressure oil seal, a high-rigidity metal framework is replaced by the plastic framework, the service life of the high-pressure oil seal is greatly prolonged, a sealing piece is prevented from being extruded out of a gap through the cooperation of the plastic framework and the metal check ring, and the pressure bearing capacity of the whole oil seal structure is enhanced.

The utility model belongs to the technical field of sandwich panels, and particularly relates to an environment-friendly flame-retardant polyurethane sandwich panel which comprises a sandwich panel body, and a hard metal plate is wrapped outside the sandwich panel body. A flame-retardant isolation layer, a polyurethane foam layer and a polystyrene foam layer are further arranged in the sandwich panel body, and the flame-retardant isolation layer is arranged between the polyurethane foam layer and the polystyrene foam layer; the flame-retardant isolation layer comprises an aluminum honeycomb and a glass magnesium filler, and the glass magnesium filler is arranged in holes of the aluminum honeycomb; the left side and the right side of the laminboard body are provided with three connectors and three connecting grooves respectively, and the connectors are matched with the connecting grooves. According to the sandwich board, more environment-friendly and flame-retardant materials are adopted to serve as inner core filling, the heat preservation performance of the board is improved, meanwhile, the fireproof performance is improved, the overall weight of the board is reduced, and splicing and using are facilitated.

The invention relates to the field of hard alloy product production, in particular to a production method of a high-toughness and wear-resistant hard alloy. A production method of a high-toughness and wear-resistant hard alloy comprises the following steps that S1, raw materials including, by mass, 40%-45% of WC powder, 25%-35% of Fe powder, 3%-5% of Si powder, 0.95%-1.16% of C powder, 2.5%-3.2% of Ni powder, 9%-12% of Co powder, 1.75%-2.05% of Mo powder and 0.15%-0.3% of VC powder are taken, and the purities of all the powder components are all larger than 99%; s2, mixing the raw material powder in the step S1 with a ball milling medium according to a ratio, and mixing by adopting a wet ball milling process; s3, drying the slurry, and sieving to prepare granules; s4, pressing the granules into a hard alloy blank; s5, the hard alloy blank is sintered in a vacuum or low-pressure sintering furnace, and the sintering temperature is controlled to be 1180-1250 DEG C; and S6, after sintering is completed, a sintered body is cooled, precision machining is conducted according to requirements, and a product is obtained. The high toughness and wear resistance of the hard alloy material are remarkably improved.

The utility model relates to the technical field of hard alloy circular knives, and discloses a hard alloy circular knife edge burr detection device, which comprises a detection table and is characterized in that through the arrangement of a moving assembly, when a hard alloy circular knife is larger, the hard alloy circular knife can abut against a positioning block and drive a telescopic rod to contract; when the telescopic rod retracts, the fixed plate and the sliding block can be driven to move, when the sliding block moves, the toothed plate can be driven to move, when the toothed plate moves, the gear meshed with the top of the toothed plate can be driven to rotate, and when the gear rotates, the gear can abut against the inserting block to drive the inserting rod to swing upwards; when the gear rotates, the inserting rod resets under the action of the first volute spiral spring, so that the inserting block abuts against the surface of the gear again to be fixed, the situation that due to excessive clamping, a cutter body of the circular cutter is slightly deformed, and then the roundness and the flatness of a cutter edge are affected is prevented, the product quality is improved, and the rejection rate and the production cost are reduced.

The utility model discloses a limitable hard alloy processing clamping device which comprises a base, supporting seats and a fixed clamping plate, a bearing plate is rotatably connected to the upper end of the base, the supporting seats are arranged on the left side and the right side of the bearing plate in an attached mode, and the supporting seats move left and right on the bearing plate. A movable plate used for limiting is arranged at the lower end of the supporting seat, round covers are fixedly connected to the left side and the right side of the bearing plate correspondingly, and cooling fans are installed in the round covers. According to the limitable hard alloy machining clamping device, hard alloy of different sizes can be conveniently borne, the hard alloy is stably clamped by combining the fixed clamping plate, the bearing plate can rotate at the upper end of the base, the machining angle of the hard alloy is adjusted during machining, and the machining precision is improved. And in combination with a cooling fan, the machined hard alloy can be blown for heat dissipation and cooling, and operators are prevented from being scalded by the too high temperature of the hard alloy during material taking.

The application discloses a multi-blade hard alloy cutting tooth and application, which comprises a cylindrical base body, an upper outer cutting unit and a lower outer cutting unit are arranged on the outer wall of the cylindrical base body; an upper inner concave structure is arranged on the top surface of the cylindrical base body, and a lower inner concave structure is arranged on the bottom surface of the cylindrical base body; an upper inner cutting unit is arranged at the center of the upper inner concave structure, and a lower inner cutting unit is arranged at the center of the lower inner concave structure. The application realizes good cutting ability through a plurality of sharp cutting edges, improves stress concentration effect and thus improves cutting efficiency. The application is provided with the inner concave structure, so that the cutting tooth has good chip breaking capacity, can reduce the formation of long iron chips and prevent repeated crushing caused by the accumulation of iron chips at the bottom of the drill bit. The application can be mass-produced and avoids the unevenness of random broken hard alloy particles.

The invention relates to the field of materials engineering and relates to an AlN-based hard material layer on bodies of metal, hard metal, cermet or ceramics and to a method for the production thereof. The aim of the invention is to provide an AlN hard material layer which has improved hardness and wear resistance and can be produced in an inexpensive and time-efficient manner. According to the invention, an AlN-based hard material layer is provided, which is an individual layer or a multi-layered layer system, wherein at least the one layer or at least one layer of the multi-layered layer system is an AlN-based hard material layer with a hexagonal lattice structure that has a <002> texture and is oxygen-doped, wherein the oxygen doping is in the range of 0.01 at. % to 15 at. %. The hard material layer can be used as a wear-protection layer for cutting tools.

The invention relates to the technical field of vehicle-mounted backlight module structures, and discloses an ultrathin vehicle-mounted backlight module structure which comprises a die-casting shell and a display module, a groove body is formed in one side of the die-casting shell, and a step surface is arranged on the inner side of a port of the groove body; the display module comprises a reflecting film, a light guide plate, a diffusion film, a lower intensifying light, an upper intensifying light and a liquid crystal glass cover plate which are sequentially distributed from bottom to top, a middle rubber frame is bonded to the step face and wraps the outer side of the cover plate, and meanwhile the cover plate and the middle rubber frame are fixed through foam rubber. A traditional plastic rear shell is replaced by the die-casting shell, the die-casting shell is made of hard metal materials, the module die-casting piece and the plastic rear shell are combined into a whole, the die-casting piece is integrated, the front face bears the diaphragm, the back face structure is provided with a connecting structure to be connected with a vehicle body, and the die-casting shell guarantees the product strength and improves the overall heat dissipation effect.

The utility model discloses an intelligent temperature control protector, which relates to the technical field of electrical components, and comprises an outer casing, a side cover, a circuit board and a mounting plate, the upper side of the circuit board is electrically connected with a microprocessor, a wireless receiving module and a temperature sensing module, and the upper side of the mounting plate is fixedly provided with an on-off protection mechanism and an access mechanism. When the interior of the electric appliance is overheated due to long-time heat supply, the temperature sensing module is arranged in the electric appliance, senses that the temperature exceeds a threshold value and sends an electric signal to the microprocessor, and the microprocessor controls the output shaft of the rectangular-axis motor to rotate reversely, so that the shifting piece is driven to rotate clockwise, and the rolling wheel rotates clockwise to be gradually separated from the soft metal strip; the soft metal strip is made of copper metal, has high toughness and is separated from the hard metal strip after being recovered to a horizontal state, and the hard metal strip is made of aluminum metal, so that a circuit of a temperature generation part of the electric appliance is disconnected, heat supply is not continued, and the electric appliance is protected.

A stud (100) for improving grip of a tyre (200). The stud (100) comprises a body (120) comprising a base flange (140) and a second part (130), the second part (130) being joined to the base flange (140), and a pin (110) protruding from the second part (130) in the longitudinal direction (Sz) of the stud (100). The pin (110) comprises hard metal or ceramic. The base flange (140) has a first cross-section having a first area (A140). The pin (110) has a second cross-section having a second area (A110). A ratio (A140 / A110) of the first area (A140) to the second area (A110) is 6.5 to 21. Moreover, the pin (110) protrudes a first height (H110) from the second part (130) such that a ratio (A140 / H110) of the first area (A140) to the first height (H110) is 20 to 50 mm2 / mm.

The invention discloses a cushion block composite layer for a semiconductor, a preparation method and a cushion block, the cushion block composite layer sequentially comprises a composite coating and a surface microstructure from a substrate close to beryllium copper to a position far away from the substrate, and the composite coating sequentially comprises a chromium transition layer, an alpha-diamond-like carbon layer and a self-lubricating layer doped with tungsten disulfide from a position close to the substrate to a position far away from the substrate. Hard metal carbide reinforced phase crystal grains are uniformly distributed in the alpha-diamond-like carbon layer; the surface micro-texture comprises a plurality of pits, and each pit is filled with a nano-particle solid lubricant; through the structure, the cushion block is compatible with the high process temperature, an additional cooling device is not needed, and the interface shear stress of the composite layer is reduced, so that the copper powder falling amount is greatly reduced, the hardness, the wear-resisting life, the wear-resisting particle penetrability and the high recognition accuracy of the cushion block are greatly improved, and the low friction coefficient of the surface is maintained; and the roughness is still kept at a lower level after the lead frame is carried for multiple times.

To provide a structural material of a resin foam base material which has a hard metal surface irrespective of a surface shape, is lightweight and has flame retardancy.SOLUTION: A structural material 20 has a sprayed metal layer 22 on the surface of a base material 21 composed of a resin foam subjected to flame-retardant treatment. The base material 21 is composed of a flame-retardant resin foam foam-molded by foamable resin beads coated with a flame retardant. The sprayed metal layer 22 contains an aluminum alloy. A resin undercoat 23 is provided on the surface of the base material 21, and the sprayed metal layer 22 is formed on the resin undercoat 23.SELECTED DRAWING: Figure 2

The utility model discloses a wafer bonding structure and a luminescent device. The wafer bonding structure comprises a first wafer, a second wafer and a conductive adhesive layer, wherein each of the first wafer and the second wafer comprises a bonding surface, the conductive adhesive layer comprises conductive particles, and the bonding surface of the first wafer and the bonding surface of the second wafer are bonded through the conductive adhesive layer. According to the utility model, the technical effect of improving the product yield when the first wafer and the second wafer are bonded is realized, and the problem that the product yield is not high due to the fact that wafers are easy to crack after being stacked and bonded through a hard metal layer in the prior art is solved.

The invention discloses a light vehicle suspension component, and relates to the field of vehicle suspension components, the light vehicle suspension component comprises an anti-roll rod, the two ends of the anti-roll rod are connected with lining assemblies, and each lining assembly comprises a hard metal lining connected to the outer wall of the anti-roll rod in a sleeving mode. The universal assembly and the lining assembly are combined to serve as a connecting piece between the anti-roll rod and the frame, multi-angle rotation and power transmission can be achieved through the universal assembly, the universal assembly can be used for occasions where relative movement among components is allowed and torque or force is transmitted at the same time, the anti-roll rod is allowed to move relatively in multiple directions, and the anti-roll rod can rotate in multiple directions. Under the condition, in the same period, abrasion of the lining assembly and breakage of molecular chains can be relatively relieved, then the service life of the lining assembly is prolonged, then the material characteristics of the first flexible sleeve and the second flexible sleeve can be utilized, tiny displacement between the frame and the anti-roll bar is absorbed, stress concentration caused by rigid connection is avoided, and the service life of the anti-roll bar is prolonged. And roll control and comfort balance are optimized.

The ground inserting type fertilizer applicator comprises a material conveying pipe and a shovel head, the material conveying pipe is a hard metal pipe, the upper end of the material conveying pipe is in threaded connection with a hopper, a second hinge frame is fixedly arranged on one side of the upper portion of the material conveying pipe, a pull handle is hinged to the second hinge frame, a pull rod is hinged to the lower side of the pull handle, and the other end of the pull rod is fixedly connected with a pull hook. The lower end of the conveying pipe is in threaded connection with the shovel head; the upper end of the movable part of the shovel head is connected with the drag hook, and the pull handle pulls the shovel head open through the pull rod and the drag hook. According to the fertilizer applicator, the shovel head is connected with the material conveying pipe through the thread structure, and the drag hook is connected with the movable part of the shovel head, so that the shovel head and the material conveying pipe are more conveniently detached, and after the shovel head and the material conveying pipe are detached, the legs of a user are not easily injured when the fertilizer applicator is taken to move, and the safety is relatively higher; and different shovel heads are easy to disassemble and replace, so that more use scenes can be met, and meanwhile, the damaged shovel head can be replaced and maintained more conveniently.

A tool component of a machine tool comprises a functional body having at least one functional surface and a support body which supports the functional body wherein the functional body has at least one surface for fixing or guiding the tool component within the machine tool, wherein the functional body is formed at least partially from a solid material. The tool component is characterized in that the structure of the support body adjoins the structure of the functional body, the functional body at least partially has a carrying structure having cavities, and the carrying structure is formed at least partially from a hard material, a hard metal or a hard alloy on a chromium-cobalt basis.

The invention provides a packaging workpiece sorting jig, a packaging workpiece sorting assembly, a sorting machine and a cutting and sorting all-in-one machine, and relates to the technical field of sorting. The buffer part is arranged on the workbench and comprises a plurality of adsorption grooves, the adsorption grooves are used for containing packaging workpieces, the groove walls of the adsorption grooves are in an outward expanding shape, the size of groove openings of the adsorption grooves is larger than that of the groove bottoms of the adsorption grooves, and in the same direction, the size of the packaging workpieces is larger than that of the groove bottoms of the adsorption grooves. The size of the packaging workpiece is smaller than that of the notch of the adsorption tank; wherein the elastic modulus of the buffer piece is smaller than that of the workbench. According to the technical scheme, scratching between the packaging workpiece and the hard metal table top is reduced, pins of the packaging workpiece are prevented from being bent due to stress, a plating layer is prevented from falling off, and the yield of the packaging workpiece is increased.

The utility model relates to a kind of hard alloy assembly pinch roll, belong to steel rolling equipment technical field.The pinch roll includes roll ring, base and cover plate;The base and cover plate are all ladder shaft structure, and are divided into thick section and thin section;The base is coaxially arranged with cover plate and thin section is opposite, is fixedly connected by fastener, and two thin sections butt joint form the roll ring installation groove extending in circumference;The base and cover plate central through hole are equipped with inner hole;The roll ring is set in base and cover plate outer, and the inner hole of roll ring is equipped with the convex extending in circumference, the convex and the roll ring installation groove shape are matched and there is radial and axial interference fit.The utility model realizes the consideration of economy and durability by assembly structure, and reduces the instability of non-integral structure by structural design.

The invention discloses a connecting bar and a battery module, the connecting bar comprises a first connecting section and a second connecting section, the first connecting section and the second connecting section are respectively made of hard metal materials, and two opposite ends of a buffer section in the extension direction are respectively connected with the first connecting section and the second connecting section; the buffer section comprises a plurality of soft metal foils which are stacked in the thickness direction of the buffer section. According to the connecting bar, stable connection between the connecting bar and the battery cell poles is achieved through the high-rigidity hard metal materials at the two ends, the fatigue stress between the battery cell columns under the vibration working condition is absorbed through the soft metal foil pieces with the good flexibility, and fatigue fracture of the connecting bar is avoided.

The utility model discloses a durable mop plate which comprises a mop plate body, the top face of the mop plate body is connected to a mop rod connecting piece through a connecting assembly, a cleaning piece is arranged on the bottom face of the mop plate body, and the connecting assembly is made of hard metal materials. The connecting assembly is made of the hard metal material, so that compared with a connecting piece made of a plastic material in the prior art, the wear resistance is better. The connecting piece made of the plastic material is seriously abraded when used for a long time and even gets loose from the connecting position, the connecting piece made of the metal material in the device avoids abrasion and is more durable, and the service life of the mop is prolonged. The installation flat plate is formed in an extrusion mode, a used mold is small and easy to manufacture, the production cost is reduced, the film covering layer is arranged on the top face of the mop plate body, the mop plate body is protected, and the mop plate is easy to clean.

The invention relates to the technical field of milling machine tools, and discloses a hard alloy milling cutter milling machine tool with adjustable milling depth, which comprises a scrap suction part, a cleaning part and a maintenance part. The scrap suction part comprises a suction adjusting piece connected with the X-axis moving platform in a sliding and lifting mode and an air suction piece arranged on the machine base, the suction adjusting piece comprises an electric rod, a rubber pipe and a plurality of conical openings penetrating through the rubber pipe, an adjusting positioning part is arranged on the outer side of the rubber pipe, positioning is achieved by inserting a hollow rod into a fixing hole, and scrap suction dead angles are eliminated. The cleaning and wiping part comprises a rotary fixing piece connected with the air suction piece and a wiping piece penetrating through the suction adjusting piece, and the angle of the rubber pipe can be rotationally adjusted after the rotary fixing piece is unfixed, so that the cotton brush is switched from the scrap suction mode to the cleaning mode. The maintenance part comprises a sheath part and a supply part, supplies lubricating oil and protects the milling cutter in a matched mode. Integration and space reuse of chip suction, cleaning and maintenance functions are achieved, the device is adaptive to the shape of a workpiece, and the machining and cleaning efficiency and effect are improved.

The utility model discloses a paper box forming machine with a hard handle, which comprises a box body forming mechanism, baffles arranged on the left side and the right side corresponding to the discharging end of the box body forming mechanism, a supporting plate fixedly arranged above the baffles, movable supporting plates arranged on the left side and the right side of the supporting plate, and a metal wire traction roller group arranged on the left side and the right side of the supporting plate, the metal wire traction roller set can drag a metal wire to the position above the supporting plate and the movable supporting plate, a first bending pressing block capable of ascending and descending is arranged corresponding to the movable supporting plate, and after the first bending pressing block and the movable supporting plate are matched to complete bending of the end of the metal wire, the movable supporting plate moves to be separated from the metal wire. Second bending pressing blocks capable of ascending and descending are arranged on the two sides of the corresponding supporting plate, movable wire pressing blocks are arranged on the outer sides of the corresponding baffles, and the wire pressing blocks are matched with the baffles to insert the first bending parts at the two ends of the metal wires into the formed box body. According to the utility model, the hard metal wire can be automatically bent into a handle shape and is connected to a paper box.

The present application relates to a kind of vacuum PVD coating methods, specifically to a kind of method for relieving the damage of brittle nitride coating to metal fatigue performance.The technical problem that the hard metal nitride coating for existing aero-engine blade can significantly reduce the fatigue performance of metal matrix under the action of alternating load is solved.The present application includes the following steps:1) pretreatment is carried out to the surface of metal matrix;2) metal matrix is installed in the vacuum chamber of cathode vacuum arc, and metal target is arranged in ion implantation target position;3) vacuumizing;4) metal target ion is injected to the surface of metal matrix;5) the nitride coating of doped Ni is deposited on the surface of metal matrix, so that the thickness of nitride coating reaches 4.5-5.5 μm, and the addition amount of Ni in nitride coating is 10.2at.%-10.6at.%.The present application effectively relieves the damage of nitride coating to metal matrix fatigue performance.

The utility model discloses a hard alloy drill bit, which relates to the technical field of alloy drill bits and comprises an alloy cutter handle component, a locking component and an alloy drill bit component, the alloy cutter handle component comprises a cutter handle head and a clamping groove, the clamping groove is arranged outside the cutter handle head, the locking component is mounted at the bottom of the alloy cutter handle component in a threaded manner, and the alloy drill bit component is mounted in the clamping groove. The locking assembly comprises a threaded ring and a threaded assembling and disassembling groove, the alloy drill bit assembly is fixedly installed in the alloy cutter handle assembly, and the alloy drill bit assembly comprises a drill bit cutter body and a drill bit installation groove. Under the combined action of the threaded ring, the drill bit clamping block, the force bearing block and the drill bit mounting groove, the drill bit and the cutter handle are divided into two parts, when the hard alloy drill bit is assembled, the threaded ring and the drill bit clamping block are tightened through the threaded assembling and disassembling groove, the drill bit clamping block clamps the cutter handle head, and therefore the drill bit is assembled. The cutter handle can be reserved when the drill bit is damaged, and cutter handle materials are saved.

The invention relates to the technical field of union connecting structures, in particular to a union connecting structure for an outlet of a fracturing pump and a wing-shaped nut dismounting and mounting device. The union connecting structure comprises a union female head, a union male head and a wing-shaped nut, and a pressing auxiliary boss is arranged in the middle of the inner side of the wing-shaped nut; the male union head and the female union head are arranged on the two sides of the pressing auxiliary boss in a bilateral symmetry mode and connected with the inner side of the wing-shaped nut through threads, the male union head and the female union head are sealed through an outer sealing assembly and the wing-shaped nut, and the outer sealing assembly comprises a hard metal ring and a rubber seal. A hard metal ring and a rubber seal are sequentially arranged between the left end of the male union and the right side of the pressing auxiliary boss from left to right. The union is reasonable and compact in structure and convenient to use, direct contact is avoided when the male union head and the female union head are pressed by arranging the pressing auxiliary boss, shear stress and pressing stress existing in traditional connection are converted into single axial pressing force, material abrasion is greatly reduced, and the service life is prolonged.

The invention discloses a method for manufacturing a bulletproof and explosion-proof tubeless tire, first, the innerliner is attached to the carcass cord ply to make the carcass innerliner, and then the steel wire braided layers and the intermediate rubber layers are laminated to each other to make an explosion-proof layer, using a first stage building machine to complete the first stage forming of the carcass innerliner, explosion-proof layer and belt to obtain a semi-finished embryo, and then using a second stage building machine, the semi-finished embryo and the tread slab base are formed in the second stage to obtain the embryo, which is baked and stored for 8˜96 h and then vulcanised to obtain a bulletproof and explosion-proof tire; through the second stage forming process, the invention solves the problem that the explosion-proof layer is difficult to form due to the excessively hard metal material when making the embryo.

The present application relates to the technical field of metal composite plate preparation, and particularly relates to a self-riveting microstructure metal composite plate mold pressing forming method. The method comprises the following steps: step S1: preparing a self-riveting microgroove structure on the riveting surface of a hard metal plate; step S2: preparing a self-riveting microconvex structure on the riveting surface of a soft metal plate; step S3: annealing the soft metal plate; step S4: pretreating the riveting surfaces of the soft and hard metal plates; step S5: fixing the riveting surfaces of the soft and hard metal plates face to face, so that the self-riveting microconvex structure and the self-riveting microgroove structure are one-to-one correspondingly inserted to form a laminated plate; step S6: preheating the laminated plate by copper foil cladding; step S7: mold pressing the laminated plate to obtain a composite plate; and step S8: annealing the composite plate. The present application realizes high-strength mechanical riveting and metallurgical bonding dual reinforcement interface of the soft and hard metal composite plate, and improves the comprehensive performance and reliability of the composite plate.

The utility model relates to the technical field of track fasteners, in particular to an anti-loosening adjustable track traffic fastener system which comprises an elastic base plate arranged below a steel rail and elastic strips arranged on the left side and the right side of the steel rail respectively and used for stabilizing the steel rail, one end of each elastic strip is indirectly buckled on the lower plane of the steel rail, and the other end of each elastic strip is buckled on a gauge apron. The hard metal structure respectively penetrates through the elastic strip and the elastic base plate from top to bottom; the sleeve is matched with the hard metal structure; a spiral protruding cylindrical structure is arranged on the surface of the lower part of the hard metal structure; spiral grooves of inverted triangular structures are formed in the inner surface of the sleeve at equal intervals, and the spiral grooves can be tightly attached to the spiral protrusions; the fastener system is remarkably superior to an existing fastener system in the aspects of resonance resistance of the elastic strips, looseness resistance of the screw spikes and steel rail adjusting capacity, and stability, safety and maintenance economy of a rail are effectively improved.