74results about How to "Strong fracture resistance" patented technology

The invention discloses a preparation method of organic compound soil for rice seedling raising. The method comprises the following steps of: collecting and treating raw materials, selecting a raw material formula, composting organic matters and adding auxiliary materials. The water content of the organic compound soil is less than or equal to 50%, the organic matter content (dry basis) is more than or equal to 40%, the total nutrient content (dry basis) is 2.2% to 2.8%, the pH value is 5.5 to 7, the EC value is less than or equal to 3, and the particle size is less than or equal to 5 mm. The mushroom leftovers and other organic waste are used as raw materials to provide complete nutrients, and the organic matters are fermented with effective microorganisms and then the auxiliary materials are added, resulting in extremely good effects. The organic waste is adopted as matrix to replace the conventional nutritional soil, so as to eliminate the need of collecting farmland surface soil, effectively protect farmlands and facilitate sustainable development of agriculture. The organic compound soil made by the method is very suitable for rice seedling raising, can promote robust growth of rice seedlings and can be promoted and applied all over the country.

The invention belongs to the field of shale oil and gas reservoir research, relates to a shale reservoir post-fracturing seepage micro-model, a manufacturing method and an experimental device and aims to simulate a reservoir microscopic model with a micron-sized pore throat according to the characteristics of low porosity and low permeability of shale oil and gas reservoirs so as to solve the problem that the seepage characteristics of fluids in shale are difficult to observe macroscopically. The manufacturing process of the microscopic model roughly comprises three parts: firstly, manufacturing a mask, and exposing the mask to obtain a model diagram required to be used; performing exposure treatment on a substrate by using the mask, transferring an etching pattern to a photoresist, transferring the etching pattern to a chromium layer from the photoresist, and then transferring the etching pattern to the substrate; and finally, carrying out anodic bonding to manufacture the substrate, thereby obtaining the microscopic model. The microscopic model can be combined with an image acquisition device and an image display device to carry out visual research on injected fluid in the microscopic model, and the flowing condition of the fluid in a micron-sized fracture-matrix reservoir is observed.

Composite body armor comprises a bullet absorbing layer, a protection layer, a buffering layer and an energy absorbing layer from exterior to interior. The bullet absorbing layer is used for absorbingbullets so as to avoid stray bullet generation, two carbon fiber layers and an aluminum foam layer are included, and the aluminum foam layer is sandwiched between the two carbon fiber layers. The buffering layer is used for converting point impacts into face impacts. The absorbing layer is used for absorbing deformation of the buffering layer. The composite body armor can effectively avoid straybullet generation and fighting personnel rib fracture danger caused by excessive impact force.

The invention provides a lifting hook protection device of a crane. The invention provides the lifting hook protection device of the crane, which can prolong the service life of a lifting hook and is safe and reliable. The lifting hook protection device of the crane comprises the lifting hook and a hook-sliding-proof buckle; the lifting hook is sleeved with the lifting hook protection device and the lifting hook protection device is movably connected with the lifting hook; the lifting hook protection device comprises an insulating layer, a fireproof layer and a wear-resisting layer; the lifting hook is sleeved with the insulating layer and the insulating layer is movably connected with the lifting hook; the insulating layer is sleeved with the fireproof layer and the fireproof layer is fixedly connected with the insulating layer; the fireproof layer is sleeved with the wear-resisting layer and the wear-resisting layer is fixedly connected with the fireproof layer; the lengths of the insulating layer, the fireproof layer and the wear-resisting layer are equal and are greater than a half of the length of the lifting hook. According to the lifting hook protection device of the crane, the lifting hook can be effectively and completely protected; the waste of materials is reduced and the cost of the lifting hook protection device is reduced.

The invention discloses an anti-fracture instrument cable material. The anti-fracture instrument cable material comprises, by weight, 20-40 parts of PBT resin, 5-10 parts of SEBS resin, 5-10 parts of trioctyl trimellitate, 5-10 parts of phosphorous ester, 3.5-5.5 parts of gamma-glycidoxy propyl trimethoxy silane, 10-20 parts of aluminium hydroxide flame retardant, 2-5 parts of polyethylene wax, 0.5-2 parts of potassium persulfate, 0.1-0.2 part of montmorillonite, 2.5-4.5 parts of zinc stearate and 0.1-0.2 part of titanium dioxide. The anti-fracture instrument cable material has more excellent anti-fracture performance, cables can be prevented from being fractured in the using and mounting processes or in various environments, and formula cost control is more reasonable.

The invention belongs to the field of alloy steel materials and relates to an input shaft, in particular to an EPS input shaft. The EPS input shaft is made of alloy steel. The alloy steel specificallycomprises the following components of, by mass, 1.3-2.2% of C, 16.2-16.8% of Cr, 14.2-14.9% of Mo, 0.5-0.8% of Nb, 0.12-0.25% of N, 0.26-0.32% of Si, 0.34-0.39% of Mn, 1.2-1.6% of V, 0.67-0.82% of rare earth and the balance Fe. The surface of the alloy steel is sequentially coated with an aluminum layer, a mussel byssus albumen layer and a nanometer ZrC layer. According to the EPS input shaft, Vand Nb are added into the alloy steel, the abrasion resistance of the alloy steel can be improved, and the material hardness, tensile strength, yield strength and after-breaking elongation are improved.

The invention discloses a preparation method of a zirconia ceramic rear cover of a mobile phone. The method comprises steps as follows: S1, modified zirconia powder and yttrium oxide powder are mixeduniformly, and mixed powder is obtained; S2, the mixed powder is dissolved in absolute ethyl alcohol, ammonium polyacrylate is added, wet grinding is performed for 20-36 h, and pretreated powder is obtained after drying treatment; S3, polyethylene glycol, isopropyl alcohol and zinc stearate are added to the pretreated powder, ultrasonic dispersion is performed, and tape casting slurry is obtained;S4, the tape casting slurry is subjected to vacuum defoaming, and a green body is obtained through tape casting; S5, the green body is subjected to three-stage thermal treatment and then subjected toshaping processing treatment, and the zirconia ceramic rear cover of the mobile phone is obtained. The prepared zirconia ceramic rear cover of the mobile phone has high hardness and bending strength,high anti-breaking capability, uniform texture and stable quality; the preparation method is simple, adopts a preparation process which is easy to operate, and is suitable for large-scale promotion.

The invention discloses a skip-plating-free pre-coating hot-forming steel plate with low crack sensitivity and a manufacturing method and relates to the technical field of hot galvanizing. According to the skip-plating-free pre-coating hot-forming steel plate with the low crack sensitivity and the manufacturing method, the matrix steel plate comprises the following ingredients of, in percentage by mass, 0.10-0.36% of C, less than or equal to 0.5% of Si, 0.5-1.5% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, less than or equal to 0.50% of Cr, 0.01-0.06% of Al, less than or equal to 0.15% of Nb+V+Ti, less than or equal to 0.5% of Mo and the balance Fe and inevitable impurities. By means of control of all technological process parameters and the matrix C content, a decarburized layer with the depth ranging from 5 micrometers to 10 micrometers is obtained, the steel plate matrix is made to obtain uniform ferrite and pearlite tissue, meanwhile, the cold bending performance after hot forming is improved, and the material is made to have the low crack sensitivity and the skip-plating prevention performance.

The invention provides an anti-fracture starch sizing agent and a preparation method thereof, and belongs to the technical field of sizing agents for spinning. The method comprises the steps that cornstarch is subjected to irradiation treatment, and then water is added for gelatinization to obtain gelatinized starch; vinyl acetate, acrylic acid and an initiator are mixed for a polymerization reaction to obtain a copolymer; and the copolymer is mixed with the gelatinized starch, ammonium sulfate and sodium hydrogen sulfite are then added to initiate graft copolymerization reaction, and alkaliis added for neutralization to obtain the anti-fracture starch slurry. Acrylic acid and vinyl acetate are adopted for copolymerization, so that the reaction is easy to control, and the obtained copolymer is longer in molecular chain and better in flexibility. A redox system composed of ammonium persulfate and sodium hydrogen sulfite is adopted to initiate a graft copolymerization reaction, so thatthe method is simple to operate and high in grafting efficiency. The breaking strength of a slurry film formed by the anti-breaking starch slurry is greater than 40.08 N/mm<2>, the elongation at break is greater than 3.7%, and the anti-breaking starch slurry has good anti-breaking performance.

The invention belongs to the agricultural field, and particularly relates to a kiwi fruit nursery soil matrix. The kiwi fruit nursery soil matrix is prepared from, by weight, 45-65 parts of nature soil, 17-25 parts of turfy soil, 10-20 parts of organic fertilizer, 7-15 parts of mushroom dreg, 4-10 parts of vermiculite, 0.04-0.06 part of phoxim particle, 0.04-0.09 part of mancozeb particle. The raw materials applied to the soil formula are simple and easy to obtain; the soil can provide comprehensive nutrition for crops, and the fertilizer effect is long; the kiwi fruit nursery soil formula solves the problem of insufficient nutrition in ordinary nursery matrix.

The invention relates to a remote pickup device controlled through mobile phone Bluetooth. The remote pickup device controlled through the mobile phone Bluetooth comprises a telescoping mechanism capable of telescopically extending and a fixing bracket used for fixing a pickup device body, wherein the fixing bracket is arranged at the top end of the telescoping mechanism, and the pickup device body comprises a control device, a steering engine and a manipulator; the manipulator is arranged on an output shaft of the steering engine, and the steering engine is connected with the control device;a Bluetooth signal receiving and processing module is arranged in the control device; a user achieves communication with the pickup device body through the Bluetooth by means of a mobile phone and controls the manipulator to grip parts, and the telescoping mechanism controls the pickup distance of the pickup mechanism. According to the remote pickup device controlled through the mobile phone Bluetooth, after telescoping rods are pulled to a certain length, self-locking can be achieved when the adjacent telescoping rods rotate a certain angle, a mobile phone APP is started, and the manipulatoris remotely controlled to act through Bluetooth signals to grip back objects in the distance.

The invention discloses a geological drill rod coupling, which structurally comprises a short joint, a connecting sleeve device and a high-entropy alloy layer. The geological drill rod coupling has the beneficial effects that the problem that the drill rod is easy to damage due to poor connection stability between the drill rod coupling and the drill rod is solved. By arranging the connecting sleeve device, the short-circuit body is firstly inserted into the shell, wherein the side plate, the clamping ring and the clamping claw block play a role in fixedly connecting the short-circuit body with the drill rod, and when the drill rod and the drill rod coupling rotate, the steel balls can ensure the stability of the power transmission of the drill rod and the drill rod coupling in rotation and the rigidity of the axial load is high without backlash in the coupled state, and then the butterfly-shaped spring can be automatically converted into additional compression load required for sealing if necessary, so as to reduce the continuous requirement on tightening during the use of the drill rod, and achieve the beneficial effects that the connection stability of the drill rod coupling andthe drill rod is enhanced, and the drill rod is not easy to damage.

The invention discloses a water-resistant and fracture-resistant waterproof roll and a preparation method thereof, and belongs to the technical field of waterproof materials, and the water-resistant and fracture-resistant waterproof roll comprises the following components in parts by weight: 50-75 parts of asphalt, 5-16 parts of a plasticizer, 2.5-10.5 parts of an elastic aid, 12-18 parts of a flame retardant, 1.5-6.5 parts of an ultraviolet absorbent, 2.5-6.5 parts of an antioxidant and 0.5-3.5 parts of a coloring agent. 2, 4-dichloro-6-methoxy-1, 3, 5-triazine, di (o-amino) phenyl disulfide, [3-(trimethoxysilyl) propyl] succinic anhydride and hydroxyl-terminated polydimethylsiloxane are utilized to react step by step to produce the elastic auxiliary agent. The main chain of the elastic auxiliary agent is mainly composed of a flexible chain, hydrogen bonds are easily formed, an interpenetrating network is formed in a waterproof roll system, the toughness of the waterproof roll is improved, and the fracture resistance of the waterproof roll is improved.

The invention discloses a high-elasticity and high-wear-resistant extrusion exhausting peristaltic tube which sequentially comprises an inner rubber layer, an inner reinforcing layer, a first middle rubber layer, a middle reinforcing layer, a second middle rubber layer, an outer reinforcing layer and an outer rubber layer from inside to outside, and the inner reinforcing layer, the middle reinforcing layer and the outer reinforcing layer are all cord thread winding layers. The high-elasticity and high-wear-resistant extrusion exhausting peristaltic tube is reasonable in design and simple in structure, has the advantages of high wear resistance, high toughness, strong fracturing resistance, corrosion resistance and aging resistance, is long in service life and has the promotion significance.

The invention discloses a preparation method of a high-strength glass material. The preparation method comprises the following steps: a, mixing TeO2, K2O, SiO2, Tm2O3, Yb2O3, Fe2O3, Er2O and Bi2O3, putting the mixture into a ball mill, and performing ball milling to obtain a material I; b, drying the material I, putting the dried material into a mixing furnace, and mixing to obtain a material II; c, guiding the material II into a mould, and clarifying to obtain a material III; d, annealing the material III, and cooling to room temperature. The glass material prepared by the preparation method provided by the invention has good fracture resistance and relatively high Vickers hardness, and the application range of the glass material can be significantly widened.

The invention discloses a high-strength multi-performance wire cable. The high-strength multi-performance wire cable comprises a cable core, a coating layer, a functional layer and an outer sheath, the cable core layer is internally provided with at least one cable core, and a filler is filled between the cable core and the coating layer; and the outer side of the cable core layer is provided witha coating layer. A functional layer is arranged outside the coating layer, the functional layer is composed of a functional material and an adhesive, the functional layer is coated with an outer sheath, and the coating layer and the outer sheath contain at least one layer containing modified reinforcing fibers. According to the cable, the functional layer composed of the reinforcing net and the fireproof glue is contained, the cable has very good mechanical performance and electrical performance, the cable is not prone to deformation and more stable in form, multiple functional materials canbe added into the fireproof glue layer, and the service life of the cable can be greatly prolonged.

The invention belongs to the field of ultrahigh-temperature ceramic-based composite materials, and particularly relates to a graded toughened ultrahigh-temperature ceramic-based composite material inspired by leaves and a preparation method thereof. The preparation method includes the steps that firstly, carbon fibers are coated with a polyethersulfone coating, then silicon carbide nanowires growon the carbon fibers with polyethersulfone as a carbon source, and first-level veins and second-level veins are constructed; secondly, impregnating the carbon fiber on which the silicon carbide nanowires grow into the ultrahigh-temperature ceramic slurry containing the carbon nanotubes, constructing third-stage veins, and drying to obtain a pre-sintered blank; and finally, preparing the graded toughened ultrahigh-temperature ceramic-based composite material inspired by the leaves through hot-pressing sintering. According to the special hierarchical structure, the expansion direction of crackscan be changed through mechanisms such as pulling out, debonding and bridging of the first-stage vein, the second-stage vein and the third-stage vein, the expansion path of the cracks is increased, more breaking energy is absorbed, and the prepared composite material has excellent thermal shock resistance and breaking resistance.

The invention discloses an environment-friendly antibacterial sole material and a preparation method thereof, and relates to the field of sole materials. The environment-friendly antibacterial sole material comprises the following raw materials in parts by weight: 30 to 40 parts of natural rubber, 60 to 70 parts of recycled rubber, 2 to 4 parts of negative ion powder, 5 to 10 parts of bamboo charcoal, 3 to 7 parts of polyvinylpyrrolidone, 2 to 5 parts of tetramethylthiuram disulfide, 3 to 7 parts of tributyl citrate, 6 to 12 parts of nano-silica, 4 to 8 parts of silver-loaded nano titanium dioxide, 4 to 8 parts of polypropylene fiber, 1.6 to 3.5 parts of an anti-aging agent, 2 to 4 parts of a silane coupling agent and 1.8 to 3.2 parts of a foaming agent. Through the synergy between raw materials, the sole material disclosed by the invention has good wear resistance and toughness and excellent fracture resistance, and has good antibacterial property and humidity control property. The recycled rubber is selected as the main raw material, the price is low, the production cost is lowered, and the problem of recycling waste rubber is solved.

The invention discloses an anti-fracture composite packaging material. The anti-fracture composite packaging material has four layers, the first layer is a polyvinylidene chloride film of 30 microns to 60 microns in thickness, the second layer is a nylon film of 50 microns to 80 microns in thickness, the third layer is a dicyclopentadiene film of 55 microns to 75 microns in thickness, and the fourth layer is a cellulose acetate film of 40 microns to 90 microns in thickness. The composite packaging material has good anti-fracture property and the fracture strength of 36 Mpa to 39 Mpa.