10results about How to "Tough enough" patented technology

The application discloses a connecting rod support assembly blanking and detecting device for an industrial internet of things in the field of connecting rod support assembly quality inspection, which comprises a translation slide mechanism, a first lifting cylinder is arranged on the translation slide mechanism, and the first lifting cylinder can horizontally reciprocate along the translation slide mechanism; a first clamping jaw cylinder is fixed on the first lifting cylinder, and the first clamping jaw cylinder is used for clamping a product to be detected; a loading table is arranged on one side of the translation slide mechanism, and the first lifting cylinder can carry the first clamping jaw cylinder to the top of the loading table in horizontal reciprocation; and a first air blowing valve capable of blowing a movable part of the product to be detected is arranged on the loading table. The movable part of the connecting rod support assembly is checked by the first clamping jaw cylinder and the first air blowing valve on the loading table, so that the quality inspection efficiency is improved, and the missing inspection of the connecting rod support assembly is avoided through the recording of the detecting device.

The application relates to the technical field of materials for generators, and provides a preparation method of an elastic material for a wind turbine generator set slip ring support, which comprises the following steps: after amino-terminated polydimethylsiloxane is dissolved in an organic solvent, diisocyanate is slowly added dropwise, a disulfide bond chain extender is added after reaction, and the temperature is increased to continue the reaction, so that amino-terminated polydimethylsiloxane elastomers containing dynamic disulfide bonds are obtained; after the elastomers prepared above are dissolved in an organic solvent, 4,4'-diamino diphenyl disulfide and trimellitic anhydride are added, and PDMS prepolymers are obtained after reaction; after polyimide monomers are dissolved in an organic solvent, the monomers are added into the PDMS prepolymers prepared above in batches, and then the temperature is increased in stages to react for a period of time, and the temperature is cooled to room temperature, so that the elastic material is obtained; the elastic material can still maintain sufficient toughness and anti-vibration capacity in a low-temperature environment, the risk of breakage is reduced, and the operation reliability of the wind turbine generator set in a severe cold region is improved.

The application discloses a boride double-scale synergistically reinforced high-manganese steel-based wear-resistant casting and a preparation method thereof, and belongs to the technical field of wear-resistant metal materials and special casting. The casting takes high-manganese steel as a matrix, adopts micron-level TiB2 and nanometer-level ZrB2 to form double-scale boride reinforcing phases, controls the distribution of the reinforcing phases through a powder core wire mesh weaving technology, and forms a metallurgical bonding interface through spray deposition and isothermal annealing. The synergistic improvement of tensile strength, impact toughness and wear resistance is realized. The product is suitable for high-stress wear environments in the mining, metallurgy, building material and other industries, effectively solves the technical pain point that the strength and toughness of traditional high-manganese steel are difficult to be considered, the process is stable and controllable, and differential strengthening can be realized, and the product has industrial application value.

The invention provides a full-hardened working roll made of a D2 material and a preparation method of the full-hardened working roll, and relates to the technical field of rolling mill working rolls. The full-hardened working roll made of the D2 material comprises a roll body and journals arranged at the two ends of the roll body, the hardness of a main body of the roll body is HRC60-62, the hardness in 25 mm areas of the two ends of the roll body is HRC56-58, the hardness of the journals is HRC30-35, and hardness gradient distribution gradually decreasing from a working area of the roll body to the journals is formed. According to the invention, hardness gradient distribution gradually decreasing from the working area of the roller body to the journal in a stepped manner is established, hardness transition areas are arranged at two ends of the roller body, and meanwhile, through a step-by-step heat treatment process of integral quenching, integral low-temperature tempering, integral high-temperature tempering, journal end high-temperature tempering and roller end high-temperature tempering, the hardness of different areas of the working roller is accurately controlled; the working area of the roller body has high hardness and high wear resistance, the shaft necks have high toughness, and the transition area has a stress buffering function, so that the service life of the working roller is remarkably prolonged, the rolling quality of the working roller is remarkably improved, and the production cost is reduced.

The application provides a kind of low-temperature high-toughness pipe fitting steel plate, comprising the following mass percentage of chemical elements: C: 0.05~0.07%, Si: 0.15~0.19%, Mn: 1.5~1.7%, Cu: 0.1~0.35%, Ni: 0.2~0.5%, Cr: 0.1~0.35%, Mo: 0.1~0.3%, V: 0.001~0.02%, Nb: 0.02~0.05%, Ti: 0.008~0.015%, Ca: 0.002~0.004%, Al: 0.02~0.04%. The application also provides a preparation method of the steel plate, which comprises heating, rough rolling, finish rolling and cooling of the slab. The steel plate has excellent impact toughness and can be used to manufacture pipe fittings for long-distance oil and gas pipeline projects in high-cold areas, so as to improve the safety of pipe fittings in long-distance oil and gas pipeline projects.

This utility model provides a corrugated paper cutting knife for carton production, belonging to the field of corrugated paper carton production technology. The corrugated paper cutting knife includes a blade body with a cutting edge for cutting corrugated paper and a mounting hole for fixing the blade body to a cutting device. The cutting edge includes a first cutting edge and a second cutting edge connected in sequence. The first cutting edge is used for initial cutting of the corrugated paper, and the second cutting edge is used for final cutting. A chip removal groove is provided on at least one side of the blade body for discharging paper scraps generated during the cutting process. A groove is provided on the side wall of the blade body to reduce resistance during cutting and reduce tool wear. This invention solves the problems of existing corrugated paper cutting knives that easily generate a large amount of paper dust and lint during cutting, resulting in rough cutting edges, rapid tool wear, and short tool life, which affect the production quality and efficiency of cartons.

The present application relates to a kind of mechanical bucket tooth steel and preparation method, mechanical bucket tooth, end product, it relates to mechanical bucket tooth steel technical field, including by mass percentage C 0.3-0.35%, Si 1-1.2%, Mn 1-1.3%, P≤0.02%, S≤0.015%, Cr 1.1-1.3%, Ti 0.06-0.1%, Mo 0.15-0.2%, Al 0.015-0.03%, the balance is Fe and unavoidable impurities;The hardness difference absolute value of surface hardness and core hardness in the mechanical bucket tooth steel ≤6HB.The mechanical bucket tooth steel provided by the present application, through the optimization design of steel component, especially control Si, Cr, Ti, Mo and Al content, utilize the cooperation effect of each element to optimize the hardness distribution of steel, so that the core hardness and surface hardness of steel product difference reduce, to improve the processing effect of steel product.

The invention relates to the field of refractory materials, and discloses a composite fireproof plate and a preparation method thereof. The composite fireproof plate comprises a ceramization composite layer located on the upper layer and a non-ceramization composite layer located on the lower layer. The ceramizable composite layer comprises a ceramizable polymer film and inorganic fiber cloth which are stacked in a staggered manner; the non-ceramic composite layer comprises a non-ceramic polymer film and inorganic fiber cloth which are stacked in a staggered manner, and a ceramic polymer film is arranged on the outer side of the ceramic composite layer; a non-ceramic polymer film is arranged on the outer side of the non-ceramic composite layer; heat-resistant nanoparticles are attached to the surface of the inorganic fiber cloth; and in the aspects of thickness and gram weight, the inorganic fiber cloth positioned on the ceramizable composite layer is larger than the inorganic fiber cloth positioned on the non-ceramizable composite layer. The composite fireproof plate has a superposed structure of the heat insulation layer, the impact buffer layer and the structural strength layer, has the advantages of light weight, high strength, fire resistance, heat insulation and toughness, and particularly has excellent impact resistance to high-temperature particles.

The utility model discloses a push-pull type storage box with a limiting function, which belongs to the field of storage boxes, and comprises a square box body with an opening at the top, sliding chutes are arranged on the inner walls of two sides above the square box body, a push-pull type box cover is arranged in the two sliding chutes in a sliding manner and can block the square box body, and the push-pull type box cover is an acrylic plate; two sides of the push-pull type box cover are respectively provided with an inner groove, a protrusion is arranged in one sliding groove and protrudes towards the other sliding groove, and when the push-pull type box cover seals the square box body, the inner grooves in the two sides of the push-pull type box cover are matched with the protrusions on the square box body; the upper side and the lower side of the protrusion are provided with long grooves, the long grooves are located in the sliding grooves and penetrate through the bottoms of the sliding grooves, the length of the long grooves is larger than that of the protrusion, the service life of the box cover can be prolonged through the structure, and the original application requirement of the box cover is guaranteed.

The utility model provides a long -life high -performance screw tip tap has the coarse handle handle, thin neck and screw tip of coaxial connection as an organic whole, the chip flute made of screw tip is three groove structure, and the chip flute of three groove structure is three equal parts distribution relative to tap center axis, and the chip flute groove shape is two straight lines two circular arc form, and the smooth transition between circular arc, the screw tip still is made with straight flute, and the screw tip tap adopts the high -speed steel material of vacuum heat treatment, cryogenic treatment and passivation treatment to make. The utility model solves how to reach the technical problem of high -efficient tapping processing of high -performance screw tip tap product on numerical control equipment, improves tap life, processing high -efficient, quality is stable, long -lived, is fit for promotion.