158 results about "Mechanical Treatments" patented technology

The present disclosure includes a controller and a sheath having a sheath proximal end opening coupled to the controller, a sheath open distal end configured to be inserted into a vascular system of a patient, and a working lumen extending through the sheath. The system may include a guidewire extending from the controller through the working lumen, the guidewire having a guidewire distal end configured to mechanically treat a vascular wall of the treatment segment, a length of the guidewire distal end defining a length of the treatment segment. The working lumen may be configured to slidably receive the guidewire and allow fluid to pass therethrough around the guidewire to chemically treat the treatment segment. The distal end of the guidewire may mechanically treat the vessel wall when the system receives a first input. The system may deliver a fluid when the system receives a second input and / or a third input.

The present invention discloses a gradient structure 3D printed metal component and its preparation process, belonging to the field of 3D printing forming preparation. The preparation process of the present invention includes: 1) 3D printing material preparation, 2) 3D model construction and parameter setting, 3) 3D printing forming, 4) mechanical treatment, 5) surface treatment, and finally obtaining a 3D printed metal component with a dense surface without pores and excellent mechanical properties. The present invention solves the problems of material surface densification and pores by introducing laser peening technology into the preparation process of 3D printed metal components, and solves the problem of crack propagation by introducing a pulsed electric field during the laser peening process, thereby preparing high-quality gradient structure 3D printed metal components.

Novel hybrid tunnel boring methods, systems, and apparatuses are described. Example hybrid methods integrate (a) thermal processing, e.g., preconditioning and / or thermal spallation (which may be used as pre-treatment), and (b) mechanical processing while boring tunnels in rock and other formations. Thermal processing and mechanical processing may be used alternatively or simultaneously. For example, the preconditioning may use thermal energy to induce thermal shock and weaken the rock (e.g., cause expansion stress, micro-fractures, thermal spallation, etc.). This preconditioning changes the relevant properties of the rock relative to the additional (e.g., mechanical) excavation, including, among other things, effective compressive stress, abrasion properties, and hardness. This preconditioned rock can therefore be efficiently removed using mechanical drilling tools, resulting in, for example, faster boring speeds, reduced tool wear, enhanced precision, and longer deployment lengths (e.g., in comparison to conventional TBM and especially MTBM approaches).

The invention discloses a thermomechanical treatment method for manufacturing a high-performance ribbed shell section, and belongs to the technical field of high-performance precision plastic forming manufacturing. According to the method, firstly, through high-temperature multidirectional forging cogging, medium-temperature rectangular ring rolling and high-temperature in-mold forging and rolling composite forming, near-net forming of the ribbed shell section, coarse crystal phase crushing and refining and grain refining are achieved; and finally, through the design of solid solution, in-mold cold rolling and aging, the problem that cold deformation is discontinuous and uneven due to a split mold structure in an existing ring piece cold bulging process is solved, accurate shape correction, residual stress reduction and performance improvement are achieved, and the product quality is improved. And the high-performance near-net plastic forming and high-performance manufacturing requirements of a key structural part, namely a ribbed shell section, of an aerospace carrier are met.

The invention discloses a machine-pesticide synergistic weeding device which comprises a mechanical weeding mechanism and a chemical weeding mechanism. The mechanical weeding mechanism comprises a mounting component, a friction wound assembly and a rotary driving mechanism, and the mounting component is connected with the walking device; the friction wound assembly comprises an outer friction cylinder body and an inner friction cylinder body, the outer friction cylinder body is fixedly connected to the mounting component, and a plurality of avoiding holes which are circumferentially arranged around the axis of the outer friction cylinder body are formed in the outer friction cylinder body; the inner friction cylinder body is arranged in the outer friction cylinder body, and the inner friction cylinder body is connected with the driving end of the rotary driving mechanism; the chemical weeding mechanism comprises a pesticide box, a pesticide conveying pipe and a plurality of pesticide spraying heads, and the pesticide spraying heads are located at the top between the outer friction cylinder and the inner friction cylinder. According to the machine-pesticide synergistic weeding device, machine-pesticide synergistic weeding is carried out, weeds are mechanically treated firstly, wounds are generated on the surfaces of the weeds, then herbicide is sprayed, and accurate, rapid and pollution-free weeding can be achieved.

Novel hybrid tunnel boring methods, systems, and apparatuses are described. Example hybrid methods integrate (a) thermal processing, e.g., preconditioning and / or thermal spallation (which may be used as pre-treatment), and (b) mechanical processing while boring tunnels in rock and other formations. Thermal processing and mechanical processing may be used alternatively or simultaneously. For example, the preconditioning may use thermal energy to induce thermal shock and weaken the rock (e.g., cause expansion stress, micro-fractures, thermal spallation, etc.). This preconditioning changes the relevant properties of the rock relative to the additional (e.g., mechanical) excavation, including, among other things, effective compressive stress, abrasion properties, and hardness. This preconditioned rock can therefore be efficiently removed using mechanical drilling tools, resulting in, for example, faster boring speeds, reduced tool wear, enhanced precision, and longer deployment lengths (e.g., in comparison to conventional TBM and especially MTBM approaches).

The invention discloses martensite ultrahigh-strength steel and a preparation method thereof, and belongs to the technical field of steel and iron materials. The martensite ultrahigh-strength steel comprises the following chemical components in percentage by mass: 0.2 to 0.3 percent of C, 0.5 to 2 percent of Mn, 0.5 to 1.5 percent of Si, 6 to 10 percent of Ni, 1.5 to 2 percent of Al, 1 to 3 percent of Mo, 0.5 to 1 percent of Cr, 0.5 to 1 percent of W, 0.05 to 0.2 percent of V and the balance of Fe and inevitable impurity elements. By combining component design and a cyclic thermal mechanical treatment process, a nano-sized spherical precipitated phase and a band-shaped precipitated phase are introduced into a martensite lath at the same time, the dislocation storage density of a martensite structure in the deformation process is further improved, the tensile yield strength breaks through 2.4 GPa, the tensile strength reaches 2.5 GPa or above, and the tensile strength reaches 2.5 GPa or above. And good elongation at break is maintained, so that the alloy has excellent comprehensive mechanical properties.

The invention discloses a waste wind driven generator blade recovery treatment system, and relates to the field of solid waste treatment devices.The waste wind driven generator blade recovery treatment system comprises a pretreatment system used for cutting a to-be-treated wind driven generator blade into blade blocks with the size smaller than a first size; the crushing system is used for crushing the blade blocks into blade blocks with the size smaller than the second size. The soaking system is used for soaking the leaf blocks in a preset soaking solution; the drying system is used for drying the soaked leaf blocks; the grinding system is used for grinding and crushing the dried blade blocks to generate long-strip-shaped cellosilk and resin particles with the size smaller than a third size; and the screening system is used for separating the output cellosilk and the resin particles after the grinding operation is completed, and pure cellosilk is obtained. According to the method, chemical treatment and mechanical treatment are combined, so that the fibers in the blades of the waste wind driven generator are efficiently recycled, and the mechanical property index of the recycled fibers is remarkably improved.

The invention relates to the field of removal of oxide layers on the surfaces of metal materials, in particular to an acid pickling process for removing oxide layers on the surfaces of high-purity nickel particles. High-purity nickel particles with oxide layers on the surfaces are placed in a beaker to be decontaminated, the nickel particles are washed three times with pure water and washed once with alcohol, and then the nickel particles are blow-dried through a blow gun; an acid solution is prepared according to the proportion of nitric acid to concentrated sulfuric acid to water being 1: 1: 4; soaking the nickel sheet and the nickel particles in the mixed acid solution, and finally, flatly laying the nickel sheet and the nickel particles on purification cloth, simply wiping and drying; according to the method, oxide skin on the surfaces of high-purity nickel particles is directly removed through soaking; the pickling method is simple, the high-purity nickel particles with good surface brightness are obtained by controlling parameters such as the pickling solution ratio, the pickling temperature and the pickling time of the pickling process, the problems of poor surface smoothness and size precision caused by mechanical pretreatment can be effectively solved, and metal loss caused by mechanical treatment can be reduced.

The application provides a molybdenum-tungsten alloy composite rotary target repairing method, which comprises six steps of target disc defect inspection, mechanical treatment, preliminary filling, electron beam cladding, stress relief annealing and post-treatment. The molybdenum-tungsten alloy composite rotary target repairing method of the application analyzes the information such as defect type, form, size, material composition and content of the waste molybdenum-tungsten composite rotary target disc or the molybdenum-tungsten composite rotary target with defects in the production process, adopts different filling methods, performs local cladding through an electron beam, and finally obtains the repaired molybdenum-tungsten alloy composite rotary target. The molybdenum-tungsten alloy composite rotary target repaired by the method has high density and high strength of the combined part, and the quality is equivalent to that of the original product, which can fully meet the use requirements of the X-ray tube, and effectively realizes the reuse of the waste molybdenum-tungsten composite rotary target disc or the molybdenum-tungsten composite rotary target with defects in the production process.

The application belongs to the technical field of faucet valve processing, and particularly relates to a tungsten carbide processing technology for a faucet valve sealing structure. The tungsten carbide coating formed by the shielding part and the valve plug surface in one body during spraying causes damage to the coating on the valve plug surface when the shielding part is disassembled, and affects the spraying quality. The following scheme is proposed, including base pretreatment, complete cleaning of the spraying surface by using alkaline cleaning liquid + mechanical treatment to remove surface oil stains and keep the surface clean; the spraying surface needs to be preheated before sand blasting to remove surface moisture and improve the bonding quality of the powder and the surface of the part, and the suitable preheating temperature of the base surface is 60-90 DEG C. The tungsten carbide processing technology for the faucet valve sealing structure has the effect of guaranteeing the spraying quality of the tungsten carbide coating. When spraying, the device can separate the coating of the base passage area from the coating of other parts before the spraying of the tungsten carbide coating is completed, so that damage to the coating after the spraying is completed is avoided.

The invention discloses 5.5 Ni steel with excellent ultralow-temperature impact toughness as well as a preparation method and application of the 5.5 Ni steel. The 5.5 Ni steel is prepared from chemical components in percentage by mass as follows: 0.04%-0.1% of C, 0.04%-0.15% of Si, 0.5%-1.5% of Mn, 5.0%-6.0% of Ni, 0.2%-0.3% of Mo and the balance of Fe and inevitable impurities. The preparation method comprises the following steps: smelting; carrying out thermal mechanical treatment; and carrying out heat treatment by a quenching-two-phase region quenching-tempering process. According to the 5.5 Ni steel provided by the invention, only a certain mass fraction of Mo element is added, so that the problem of insufficient hardenability and strength caused by reduction of Ni element is solved, and the problem of low low-temperature toughness when the 5.5 Ni steel replaces 9Ni steel is solved through a QLT heat treatment process of thermal mechanical treatment and a quenching-two-phase region quenching-tempering process; the impact absorbing energy of the 5.5 Ni steel at the temperature of-196 DEG C reaches 250 J or above, the yield strength at the room temperature is larger than 580 MPa, and the requirements for strength and low-temperature toughness of the steel for the LNG storage tank are met.

The invention discloses a method for extracting nanocellulose from turmeric decoction pieces, and belongs to the field of turmeric application, the method comprises the following steps: S1, pretreatment: crushing and sieving the turmeric decoction pieces, and then carrying out alkali treatment to obtain pre-powder; s2, bleaching is carried out; s3, acid hydrolysis; s4, mechanical treatment; s5, extracting; and S6, purification: dialyzing the collected supernatant by using a dialysis bag and taking deionized water as a dialysate, collecting a purified liquid after the dialysis is completed, passing the purified liquid through a 0.1 mu m filter membrane, collecting a filtrate, and freeze-drying to obtain freeze-dried powder which is the turmeric nano cellulose. According to the method for extracting the nanocellulose from the rhizoma curcumae longae decoction pieces, the synergistic effect of alkali treatment, biological bleaching, acid hydrolysis and mechanical treatment is utilized, the integrity of the rhizoma curcumae longae cellulose is guaranteed, meanwhile, barriers wrapping the rhizoma curcumae longae cellulose, such as lignin and hemicellulose, are broken, and the yield of the nanometer rhizoma curcumae longae cellulose is high.

Novel hybrid tunnel boring methods, systems, and apparatuses are described. Example hybrid methods integrate (a) thermal processing, e.g., preconditioning and / or thermal spallation (which may be used as pre-treatment), and (b) mechanical processing while boring tunnels in rock and other formations. Thermal processing and mechanical processing may be used alternatively or simultaneously. For example, the preconditioning may use thermal energy to induce thermal shock and weaken the rock (e.g., cause expansion stress, micro-fractures, thermal spallation, etc.). This preconditioning changes the relevant properties of the rock relative to the additional (e.g., mechanical) excavation, including, among other things, effective compressive stress, abrasion properties, and hardness. This preconditioned rock can therefore be efficiently removed using mechanical drilling tools, resulting in, for example, faster boring speeds, reduced tool wear, enhanced precision, and longer deployment lengths (e.g., in comparison to conventional TBM and especially MTBM approaches).

The invention discloses a high-conductivity high-strength copper alloy thermal mechanical treatment strengthening process which comprises the following steps: firstly, heating a Cu-Ni-Be-Zr alloy cast ingot to 890-980 DEG C until the core part of the cast ingot reaches a set heating temperature, then compressing the cast ingot, carrying out water cooling at room temperature, and finally carrying out aging treatment and air cooling on the cast ingot at 480 DEG C * 3-480 DEG C * 8 hours; the Cu-Ni-Be-Zr alloy comprises the following components in percentage by weight: 1.6 to 2.5 percent of Ni, 0.25 to 0.5 percent of Be, 0.05 to 0.2 percent of Zr, not more than 0.1 percent of impurities and the balance of Cu. According to the method, the cast ingot of the Cu-Ni-Be-Zr alloy is directly subjected to thermal mechanical treatment and then subjected to aging, the process steps of forging, solid solution treatment and cold deformation in a traditional process are omitted, the performance of the treated Cu-Ni-Be-Zr alloy is basically consistent with that of the alloy obtained after the traditional production process is adopted, and therefore the Cu-Ni-Be-Zr alloy is obtained. The thermomechanical treatment combines the advantages of hot working and mechanical deformation, and the microstructure and performance of the alloy can be more efficiently improved.

The invention relates to a pretreatment method and system for identifying a microbial rock organic matter structure, and belongs to the technical field of oil-gas exploration sedimentary reservoir science research. The method comprises the following steps: carrying out basic petrology characteristic analysis of a target sample; selecting a sample according to the basic petrology information obtained through analysis, and carrying out mechanical treatment on the selected sample to obtain a sample with a natural section; performing uniform acid spraying and uniform flushing spraying on the section of the sample; and drying the washed sample to finish the pretreatment. According to the characteristics that an organic matter structure in the microbial carbonate rocks does not react with acid, can violently react with calcium carbonate in the microbial carbonate rocks and slightly react with dolomite in the microbial carbonate rocks, through cooperation and control of the two steps of weak acid spraying etching and spraying flushing, the influence of cement such as calcium carbonate is effectively eliminated; the internal relation between early diagenesis products such as dolomite and the organic matter structure is also highlighted, and the method has the characteristics of low cost, high operability, remarkable effect and the like.

The invention provides an intelligent mechanical treatment device and process for household garbage, and relates to the technical field of natural gas pretreatment. The intelligent mechanical treatment device for the household garbage comprises a device body, an elevator is arranged on the outer wall of the device body, a garbage can is placed on the outer wall of the elevator, a collecting frame is arranged at the top of the device body, and a crushing box used for crushing the garbage is arranged at the bottom of the collecting frame; the bottom of the smashing box is fixedly connected with a spiral feeding barrel, and the outer wall of the spiral feeding barrel is fixedly connected with a separation pipe. When garbage adsorbed on the inner side wall of a garbage can needs to be flapped, a servo motor is started to drive a connecting toothed plate to perform lifting motion along the outer wall of the device through rotation of a connecting gear, and a flapping rod is driven to perform reciprocating lifting motion, so that the flapping rod performs reciprocating flapping contact on the garbage can; and the thoroughness of dumping the garbage from the garbage can is improved.

The invention relates to a method for regenerating concrete waste from buildings and / or demolitions, comprising at least one microwave treatment step of concrete blocks, at least one mechanical treatment step, and optionally at least one carbonization step of concrete fines, and a recycled concrete aggregate obtained by a microwave treatment step and a mechanical treatment step of the concrete block.

The invention relates to a process for producing briquettes (1), a briquette (1) from a waste material (2), and the use of a briquette (1) in the process according to the invention. The process involves providing a waste material (2) comprising at least one metal (3) and at least one organic material (4). The waste material (2) is mechanically treated in one or more stages, and at least a first fraction (5) is separated from the waste material (2). A briquette mixture (6) containing the at least a first fraction (5) is prepared, wherein the at least a first fraction (5) has a calorific value of 0 MJ / kg to 30 MJ / kg. The calorific value of the briquette mixture (6) is adjusted by varying the at least the first fraction (5). The briquette mixture (6) is fed into a briquetting machine (7) and compressed there to form briquettes (1).This produces briquettes (1) with a calorific value of 5 MJ / kg to 30 MJ / kg and with a maximum copper percentage of 0.1% by weight to 20% by weight.

The invention relates to the technical field of textile fabric manufacturing, and discloses a wool-like polyester sofa fabric production method, which comprises the following components: a fluff layer, which is formed by polyester draw-textured yarns subjected to high temperature and high pressure dyeing; the base cloth layer is formed by interweaving body warp yarns and weft yarns; the functional backing layer is attached to the back surface of the base cloth layer and is formed through a curing reaction, and the functional backing layer is formed by reacting and curing the following raw materials in parts by weight: 60-85 parts of a main body polymer; 5 to 20 parts of a cross-linking agent; and 5-20 parts of an environment-friendly flame retardant containing phosphorus and / or nitrogen. According to the method, the dyeing procedure is preposed, the innovative back finishing process is adopted, the overall style quality of the wool-like fabric is remarkably improved, damp and hot mechanical treatment on the finished gray fabric is avoided, fluff of the fabric can be kept in the original optimal state formed in the weaving process, and the quality of the wool-like fabric is improved. And finally, a fluffy, three-dimensional, natural-luster and high-grade appearance with extremely soft and smooth hand feeling is presented.

The application provides a low-temperature and clean pulping method of wheat straw biomechanical pulp, and relates to the field of low-temperature wheat straw biomechanical pulp. The low-temperature and clean pulping method of the wheat straw biomechanical pulp comprises the following steps: extrusion and wire twisting, first pre-steaming, first mechanical treatment, second pre-steaming, second mechanical treatment and post-treatment. The low-temperature and clean pulping method of the wheat straw biomechanical pulp can effectively reduce steam consumption, improve treatment efficiency, increase yield, improve pulping uniformity, avoid water treatment defects and loss of fine fibers in the pulping process, reduce treatment cost, and improve the cleanliness and environmental protection of pulping.

Self-enclosed devices for mechanical processing of disease vectors and related screening techniques are disclosed. The devices and methods including lateral flow assays may be particularly useful in at-home screening for Lyme disease.

Disclosed are improved non-woody slurries, in particular non-woody slurries prepared from plants of the family Aspartate, and more particularly one or more plants of the genus Yucca, and methods of making the same. The method of manufacture generally includes at least one mechanical processing stage, such as mechanical refinement, without adding chemicals to the biomass. In some cases, the biomass may be subjected to two stages of refinement where the consistency of the biomass differs between the stages such that the first refinement stage may be performed at a consistency in the range of about 8% to about 12% and the second stage may be performed at a consistency in the range of about 3% to about 4%. The resulting non-wood slurry has a high degree of freeness, such as freeness in the range of 500 mL to 600 mL, and a relatively moderate degree of tensile strength, such as a tensile index of about 50 or less.

Method for recycling a polymer material being selected from the group consisting of polyurethanes, polyurethane ureas, polyisocyanurates, and a mixture of two or more thereof, the method comprising the steps of: (a) providing a scrap material obtained by shredding a vehicle and / or shredding a vehicle and obtaining a scrap material, the scrap material comprising one or more foam pieces made from the polymer material; (b) performing a first sorting step for selecting, from the scrap material, target foam pieces that comprise the polymer material; (c) subjecting the target foam pieces to a mechanical treatment to obtain target foam flakes with a maximum dimension smaller than 120 mm, wherein the first sorting step comprises a sorting step using one or more of optical sorting methods to sort target foam pieces based on the type of isocyanate and / or the type of polyol used to produce the target foam pieces.

The utility model discloses an automobile oil pump cover assembling machine, and belongs to the field of automobile machining. According to the technical scheme, the automobile oil pump cover assembling machine comprises a main machine frame, a control box is arranged below the main machine frame in a matched mode, an upper working table is arranged in the main machine frame, a movable track is arranged above the upper working table in a matched mode, and a bottom plate driving component is arranged on the movable track in a matched mode. A pump head cover assembling bottom support is arranged at the center position of the bottom plate driving component in a matched mode. According to the device, through mechanical treatment, the bottom plate driving component and the pump head cover assembling bottom support are corrected and matched, and the working precision in the mechanical assembling process of the oil pump cover is effectively improved; and meanwhile, a hydraulic cylinder type assembling mode is adopted, so that the machining quality in the oil pump cover assembling and fixing process is further improved, and the labor loss is effectively reduced.

The invention provides a low-temperature clean pulping method of wheat straw bio-mechanical pulp, and relates to the field of low-temperature wheat straw bio-mechanical pulp. The low-temperature and clean pulping method of the wheat straw biological mechanical pulp comprises the following steps: extruding and thread rolling, first pre-steaming, first mechanical treatment, second pre-steaming, second mechanical treatment and post-treatment. According to the low-temperature clean pulping method of the wheat straw biological mechanical pulp, steam consumption can be effectively reduced, the treatment efficiency is improved, the yield is increased, pulping uniformity is improved, meanwhile, water treatment defects and fine fiber loss in the pulping process are avoided, the treatment cost is reduced, and pulping cleanliness and environmental friendliness are improved.

The invention discloses a preparation method of a full-pH dispersed fungal chitin nanofiber, and belongs to the technical field of biological materials and nanotechnology. The method comprises the following steps: pulping fungus raw materials, and mixing with an aqueous solution containing alkaline substances; mixing the obtained slurry with an aqueous solution containing a dealkalized substance, washing and drying to obtain a solid matter; then mixing the obtained solid matter with an acidic eutectic solvent, and filtering to obtain a solid matter; mixing the solid matter with an aqueous solution containing a deacidification substance, and filtering to obtain the solid matter; and finally, mixing the obtained solid matter with an aqueous solution containing a dispersing agent, and carrying out mechanical treatment to obtain the fungal chitin nanofibers dispersed at different pH values. The purpose of controllable purification of the raw materials is achieved through one-time alkali treatment, meanwhile, defibering of a fungus chitin structure is achieved through deep-eutectic solvent system treatment, and efficient stripping and stable dispersion of nanofibers are achieved through mechanical treatment.

The invention discloses a wheel type rice weeding robot, which relates to the technical field of weed mechanical treatment equipment and comprises a vehicle body bracket, an angle module, a weeding module, a collecting and discharging cylinder, a constant force retaining device and the like. The vehicle body support is connected with the angle module, the weeding module and the self-adaptive suspension, and overall stability and terrain adaptability are guaranteed. The angle module integrates the traction module and the steering module, four-wheel four-rotation is achieved, the steering offset distance is reduced, and flexibility is enhanced. And the weeding module is provided with weeding claw heads with different layouts, so that inter-row and inter-plant weeding can be carried out. The collecting and discharging cylinder cooperates with the constant force keeping device to stably control the height of the weeding claw head. The robot solves many problems of traditional weeding modes and equipment, such as inconvenient steering, inaccurate weeding, poor terrain adaptability and the like. The weeding machine can efficiently remove weeds, improves the operation efficiency, is suitable for weeding operation in rice planting, and assists in agricultural modernization development.

The utility model discloses a segment surface finishing device, and relates to the technical field of segment manufacturing, the segment surface finishing device comprises a base, a walking frame, a lifting mechanism and a surface finishing mechanism, the base comprises base frames arranged at intervals along the longitudinal direction, a working position for placing segments is formed between the two base frames, and each base frame extends along the transverse direction; the walking frame extends in the longitudinal direction, the two ends, in the longitudinal direction, of the walking frame are installed on the two base frames respectively and located above the working station, and the two ends, in the longitudinal direction, of the walking frame can move on the two base frames in the transverse direction respectively; the lifting mechanism is installed on the walking frame and can move on the walking frame in the longitudinal direction. The surface collecting mechanism comprises a mounting seat, a leveling assembly and a film covering assembly, the mounting seat is mounted on the lifting mechanism, and the leveling assembly and the film covering assembly are both mounted on the mounting seat. According to the surface finishing device, mechanical treatment of surface finishing of the surface of the duct piece is achieved, the surface finishing efficiency is higher, the treatment effect on the duct piece is stable, and the forming quality of the duct piece is effectively improved.

The invention relates to the technical field of paper pulp foaming buffer material preparation, in particular to a paper pulp foaming buffer material and a preparation method and application thereof. Carrying out mechanical treatment on the paper pulp fiber suspension to obtain a fibrillated paper pulp fiber suspension; mixing the fibrillated paper pulp fiber suspension with an electrolyte to obtain a paper pulp / electrolyte mixed solution; mixing the paper pulp / electrolyte mixed solution with a surfactant, and foaming to obtain paper pulp / electrolyte foaming slurry; and placing the paper pulp / electrolyte foaming slurry in a porous mold to remove a liquid phase, and drying to obtain the paper pulp foaming buffer material. The paper pulp foaming buffer material provided by the invention has excellent mechanical property, heat insulation property, machinability and biodegradability, and the packaging buffer application of the paper pulp foaming material to articles such as light fragile products and temperature-sensitive products is obviously expanded.