69results about How to "Weak elasticity" patented technology

The invention provides forming equipment for U-shaped groove plates on the two sides. The forming equipment comprises a plurality of forming roller sets which are arranged at intervals in the advancing direction. The plurality of forming roller groups are sequentially provided with a first side edge upright area, a first side edge inclined area and a first side edge parallel area along the advancing direction; the two ends of the upper forming assembly of the forming roller set located in the first side parallel area are each provided with a first side parallel wheel, the two ends of the lower forming assembly of the forming roller set located in the first side parallel area are each provided with a second side parallel wheel, and the first side parallel wheels and the second side parallel wheels correspond to each other to form a third forming gap. And when the profile plate passes through the third forming gap, the first inclined section of the profile plate gradually gets close to the main body of the profile plate, so that the first inclined section is parallel to the main body of the profile plate to form a U-shaped groove structure. According to the technical scheme, the forming equipment capable of forming the U-shaped groove plates on the two sides can be provided.

The intelligent flexible clamping system for creep age forming of the large thin-walled workpiece comprises a base, a base table is arranged at the upper end of the base, and extending holes are distributed in the base table in a matrix mode; the lifting driving mechanism is mounted on the base, and the upper end is provided with a lifting movable end aligned with the extending hole; the flexible clamping assembly comprises a base frame, a rotating table, a first rotating driving mechanism, a pitching table, a second rotating driving mechanism and a supporting module. The rotating table is rotatably and movably installed on the base frame along the vertical axis, the first rotating driving mechanism is installed on the base frame and connected with the rotating table so as to drive the rotating table to rotate and move along the vertical axis relative to the base frame, the pitching table is rotatably and movably installed on the rotating table along the horizontal axis, and the second rotating driving mechanism is installed on the rotating table and connected with the pitching table; the supporting module is detachably installed at the upper end of the pitching table. According to the method, the flexibility, the accuracy and the efficiency of creep age forming of the large thin-wall part are remarkably improved. And the requirements of multiple varieties, small batch and customization can be met.

The invention relates to the field of insole materials, in particular to a wormwood fiber and polyurethane mixed insole material and application of the wormwood fiber and polyurethane mixed insole material. Comprising the following components: 38 to 54 parts of diisocyanate, 74 to 115 parts of polyether polyol, 7 to 21 parts of modified wormwood fiber, 0.7 to 1.4 parts of a catalyst, 1.2 to 3.4 parts of a chain extension enhancer, 1.3 to 2.6 parts of a foaming agent and 0.6 to 1.2 parts of a foam stabilizer. The invention discloses an insole material. The insole material is prepared by synthesizing a polyurethane material in which wormwood fiber participates. The insole material prepared by the invention not only can maintain higher elasticity and strength, but also can have long-term antibacterial activity.

The invention discloses genipin modified ginkgo protein and whey protein composite gel and a preparation method thereof, and belongs to the field of functional food. The method comprises the following steps: (1) uniformly mixing a prepared ginkgo protein solution and a prepared whey protein solution, and adjusting the pH value to obtain composite sol; (2) adding a genipin reagent into the composite sol, carrying out a cross-linking reaction, and after the reaction is completed, adjusting the pH value again to obtain a genipin-treated composite sol; and (3) carrying out thermal induction gel formation on the genipin-treated composite sol, taking out and cooling to obtain the genipin-modified ginkgo protein and whey protein composite gel. Animal protein and plant protein are combined through the cross-linking agent genipin, so that the prepared composite gel is more nutritional, pollution to the environment is reduced, application in food production is facilitated, meanwhile, the composite gel treated with the cross-linking agent genipin has more diversified functional characteristics, and the composite gel is suitable for being applied to food production. And the food can be provided for people with different requirements.

The present invention discloses a forming device and a process for a conductive sheet, and specifically relates to the technical field of conductive sheet forming, including a punch body and a mold arranged on the punch body, the mold including an upper mold and a lower mold, the punch body including a machine base, a punch and a driving device for driving the punch to reciprocate, the upper mold is installed at the bottom of the punch, and the lower mold is installed on the machine base. The present invention arranges a feeding piece, when the upper mold moves from bottom to top, the two feeding pieces can gradually approach each other, and clamp and feed the material strip, so that the feeding assembly can feed the material strip synchronously during the process of the mold stamping the material strip, which helps to maintain the consistency of the rhythm during the stamping process, so that the feeding of the material strip and the stamping action of the mold are continuous and coordinated, and the position of the material strip can be more accurately controlled, thereby improving the dimensional accuracy and production efficiency of the conductive sheet and reducing material waste.

The present invention relates to the field of electrochemical technology, and in particular to a binder and a preparation method thereof and a lithium ion battery. The preparation method comprises the following steps: mixing water, functional monomers, styrene, electrolytes, chelating agents, and pH regulators to obtain a bottom material; mixing a cosolvent and an initiator to obtain an initiator phase; mixing butadiene, styrene, unsaturated polyolefins, and a molecular weight regulator to obtain an oil phase; mixing a dispersing aid, an electrolyte, a functional monomer, and a cosolvent to obtain a functional monomer phase; heating the bottom material to 40°C to 70°C, adding part of the initiator phase, reacting at a constant temperature, adding the oil phase, the remaining initiator phase, and the functional monomer phase, heating to 70°C to 90°C for insulation reaction, and obtaining a binder. The present invention adopts a soap-free emulsion polymerization method, and the prepared binder can form a good wetting interface and bonding layer with the negative electrode active material and the conductive agent, and form a flexible cross-linked network bonding structure with the substrate to improve the bonding force.

The invention discloses a novel synergistic concrete additive. A preparation method comprises the following steps: 1) preparing modified zirconium oxide; 2) obtaining a mixture; (3) stirring and mixing 10-20 parts by weight of modified zirconium oxide in the step (1), 8-14 parts by weight of a water reducing agent and 6-9 parts by weight of an expanding agent at the stirring speed of 30r / min-40r / min, adding 5-9 parts by weight of waste residues in the stirring process, and stirring for 20-30 minutes to obtain a synergist; after the concrete modifier is used, the corrosion resistance and the wear resistance of concrete are improved, the interface bonding degree with powder such as cement is improved, the compactness of an interface structure is increased, formation of cracks is inhibited, and the durability of the concrete is improved; and the modified zirconium oxide is used, so that the impact and abrasion resistance of the concrete is improved, and the strength, the impermeability and the freezing resistance are improved.

The blade structure for the centrifugal fan comprises a rotating body, blade units and a reinforcing piece, and the blade units are arranged around the outer wall of the rotating body in an annular array mode; each reinforcing piece is located between every two adjacent blade units, and the two ends of each reinforcing piece are connected with the corresponding two adjacent blade units correspondingly. Each blade unit comprises a first blade, a second blade and a connecting part, a gap for containing the connecting part is formed between the first blade and the second blade, and the first blade and the second blade are connected with the two opposite side edges of the connecting part respectively. And the first blades and the second blades extend in opposite directions along the axial direction of the rotating body. The blades of a traditional integrated structure are divided into the first blades and the second blades, so that the blades are layered up and down, airflow is divided into smaller parts, the pressure and friction force of each airflow unit are reduced, and the performance of the fan is improved.

The present application relates to automatic production line technical field, more specifically, it relates to a kind of transition conveying mechanism for production line, including roller conveyor and conveyor belt conveyor, roller conveyor is connected with lifting control device, conveyor belt conveyor includes conveyor body, adaptive lifting platform and base, conveyor body is set on adaptive lifting platform, multiple sets of elastic bearing assemblies are arranged between adaptive lifting platform and base, elastic bearing assembly is based on the weight of material in real time and adaptively compressed, conveyor belt conveyor further includes tension adjusting assembly, tension adjusting assembly is set on adaptive lifting platform, the tension provided by tension adjusting assembly is negatively correlated with the change of the height difference of adaptive lifting platform and base, the present application solves the problem that the conveyor belt conveyor of transition conveying mechanism is easily caused by the impact when facing material from high to low, and realizes the effect that the tension of conveying belt is adaptively changed with the weight of material.

The invention discloses a blanking device of a belt conveyor, which relates to the technical field of belt conveyors and comprises a first conveying belt. A protective cover is arranged at the upper part of the first conveying belt; the bottom end surface of the protective cover is fixedly connected with a blanking pipe; the bottom end face of the blanking pipe is fixedly connected with a three-way blanking frame; the left lower part of the three-way blanking frame is fixedly connected with a first articulated chute; and the right lower part of the three-way blanking frame is fixedly connected with a second articulated chute. Through the arrangement of the first material blocking steel rail and the second material blocking steel rail, a material accumulation area can be formed on the first mounting steel plate or the second mounting steel plate, vibration generated when materials are impacted is absorbed, and the vibration generated when the materials are impacted is further absorbed through the first buffer block and the second buffer block; the problem that bulk materials with large particle sizes contain huge kinetic energy, when falling onto a baffle plate, the bulk materials are prone to generating large impact on the baffle plate, the baffle plate vibrates, and then large noise is generated is solved.

The invention discloses an adjustable tree pruning device based on a ratchet wheel, and relates to the technical field of forestry maintenance tools. In order to solve the problems that when a pair of traditional pull rope type high branch shears is used for shearing thick branches, large instantaneous tension is needed, the displacement is difficult to maintain due to easy rebounding in the shearing process, and a ratchet wheel labor-saving structure is often difficult to quickly unlock and reset after being locked, a shearing head is arranged at one end of a main body, and comprises a movable cutter and a fixed cutter; a handle is arranged at the other end of the main body, a cutting pull rope and an unlocking pull rope are connected to the handle, the cutting pull rope pulls the movable cutter to be closed through a line concentration wheel to achieve shearing, and a pawl and a ratchet wheel are meshed to lock the returning direction so as to achieve segmented accumulation propelling; when resetting is needed, the unlocking pull rope is pulled to drive the limited connecting block to move and compress the reset spring, the ratchet wheel moves relative to the pawl to be disengaged and unlocked, the reset spring pushes the ratchet wheel and the connecting block to reset and be engaged again after unlocking, and the movable cutter is opened under the action of the rotating shaft spring.

The utility model relates to earphone technical field discloses an ear clip type earphone, including host computer subassembly and elastic ear block, host computer subassembly includes host computer casing and connecting portion, connecting portion is located host computer casing one end, and with host computer casing integral forming, elastic ear block is located connecting portion away from host computer casing one end, and elastic ear block with connecting portion between be equipped with the fixed structure of snap -on connection. Through integral type structure's host computer subassembly and elastic ear block connection, strengthened earphone whole's mechanical stability and reliability, and elastic ear block preferably soft glue or memory sponge material, can in long -term use, bear frequent deformation and restore and not easy to appear material inside microstructure damage, simultaneously, adopt the elastic ear block of soft glue or memory sponge material, can make more close ear, not easy to drop, and soft glue or memory sponge material can also improve the wearing comfort of user, thereby improve the user's use experience feeling.

The application discloses an inorganic composite solid electrolyte and a preparation method thereof, and relates to the technical field of lithium batteries, and specifically discloses an inorganic composite solid electrolyte and a preparation method thereof. The preparation method of the inorganic composite solid electrolyte comprises the following steps: S1, mixing lithium salt, metal oxide A, metal oxide B and ammonium dihydrogen phosphate, wherein the metal oxide B is titanium oxide, and intermittent vibration ball milling is performed to obtain mixed powder; S2, adding lanthanum oxide and germanium oxide into the mixed powder obtained in the step S1, and continuing to perform intermittent vibration ball milling to obtain composite powder; and S3, performing low-temperature sintering on the composite powder obtained in the step S2, and pressing to obtain an inorganic composite solid electrolyte film layer. The preparation method can significantly improve the reaction activity and synergistic effect among raw materials by adopting two-step intermittent vibration ball milling and one-step low-temperature sintering, and the conductivity of the inorganic composite solid electrolyte and the lithium ion transmission performance and cycle life of the solid battery are improved, and meanwhile, no solvent is used in the preparation process, and the sintering cost is reduced.

The invention relates to the technical field of building shock absorption, in particular to an adjustable damping shock absorber for a multi-story building and a shock absorption method of the adjustable damping shock absorber for the multi-story building. An oil liquid through hole for communicating the left chamber with the right chamber is formed in the piston disc which divides the oil liquid chamber of the barrel shell into the left chamber and the right chamber; the middle part of the piston rod assembly is arranged on an end cover I at one end of the barrel shell in a sealing and sliding manner; a left connecting opening used for being connected with the left cavity and a right connecting opening used for being connected with the right cavity are formed in the outer side face of the barrel shell, and the left connecting opening and the right connecting opening are connected through a damping adjusting oil way capable of adjusting the opening amplitude. Due to the arrangement of the damping adjusting oil way, the flowing path of oil in the oil cavity of the barrel shell is effectively increased, when the vibration amplitude is large, the flowing path of the oil and the opening degree of the valve are increased, the flowing speed of the oil is increased, and vibration energy can be more effectively absorbed and dissipated.

The invention discloses a complex workpiece intelligent full-dimensional spraying device and method based on independent multi-axis linkage. The complex workpiece intelligent full-dimensional spraying device comprises a workpiece rotating mechanism, a spraying mechanism and a control mechanism, wherein the workpiece rotating mechanism is used for driving a to-be-sprayed workpiece to rotate at a set speed; a plurality of guide rail brackets; the independent spraying unit comprises a Z-axis linear module, a Z-axis linear module and a Z-axis linear module; the Z-axis linear module is mounted on the guide rail bracket; the Pitch axis driving mechanism is mounted on the Z-axis linear module in a sliding manner; the nozzle is arranged at the tail end of the Pitch shaft driving mechanism; and the controller is in signal connection with the Z-axis linear modules and the Pitch-axis driving mechanism, so that the motion trails of all the nozzles are distributed in a sine wave shape in space and time. The reciprocating machine has the beneficial effects that compared with a traditional reciprocating machine, wave motion is matched with workpiece autorotation to form multiple spiral coatings, powdering is more uniform, the film forming speed is higher, and the unit time coverage area and the coating uniformity are improved.

The invention discloses movable assembly type high-degree-of-freedom dieless double-sided incremental forming equipment and method. The equipment comprises two groups of forming units, namely a first forming unit A and a second forming unit B, the first forming unit A and the second forming unit B can be assembled together during use and can be detached after use, and the first forming unit A and the second forming unit B are both of a foldable storage structure; the foldable industrial mechanical arm forming units capable of cooperatively working are arranged on the two sides of the vertically-fixed to-be-machined plate, synchronous or cooperative incremental forming of the front face and the back face of the plate is achieved, the forming precision is improved, springback is reduced, the thickness distribution of the plate is improved, and therefore the forming requirements of complex curved surfaces and high-performance plates are met. The double-sided forming equipment is designed to be of a detachable and assemblable modular structure, so that the equipment can be packaged in a storage state in the transportation and deployment process and can be quickly unfolded and spliced on the use site, and the maneuverability and the application flexibility of the equipment are remarkably improved.

The utility model discloses an anti-climbing crib, which belongs to the field of cribs and comprises a crib board, a loop bar is fixedly connected to the upper surface of the crib board, a woven mesh is fixedly connected to the bottom of the inner side wall of the loop bar, a protection mechanism is fixedly connected to the middle of the inner side wall of the loop bar, and adjusting rods are fixedly connected to the periphery of the bottom of the crib board. The outer surface of the adjusting rod is sleeved with a sleeve, the bottom of the sleeve is fixedly connected with a damping mechanism, the protection mechanism comprises a folding plate, and the other side of the folding plate is fixedly connected with a connecting block. Through cooperative use of all the devices, the protection function can be added to the baby crib through the arranged protection mechanism, the protection mechanism is pulled upwards or downwards, the protection mechanism is adjusted to the proper height and fixed according to the needed protection height, the applicability can be improved, personnel operation is facilitated, and convenience is improved; and the baby can be prevented from climbing out of the bed, so that the injury caused by climbing and falling can be reduced.

This utility model discloses a tube bending machine for vehicle frame production, including a base platform and a support frame fixed on top of it. A first cylinder is mounted on the top of the support frame and is connected to a forming mold located below the support frame. The base platform has forming wheels that cooperate with the forming mold. It also includes a heating mechanism, a tube fixing mechanism, and a cooling mechanism. The heating mechanism includes a movable seat, a second cylinder, a guide rail, and an electromagnetic heating component. The movable seat is slidably mounted on the side of the base platform via the guide rail. The second cylinder drives the movable seat to move in a direction closer to and away from the tube fixing mechanism. The electromagnetic heating component is fixed on the movable seat. The movable electromagnetic heating mechanism locally heats and softens the part of the tube to be bent, reducing bending resistance. Combined with the cooling mechanism, it quickly shapes the tube, reducing material springback and surface cracks, significantly improving the bending accuracy and yield of high-hardness tubes. At the same time, the integrated process shortens the tube processing cycle.

The utility model discloses a kind of shell thermal shaping frock, including shaping module, its working surface is matched with product appearance;Heat conduction module, it is attached to the non-working surface of the shaping module;And heating and fixed module, it is arranged on the heat conduction module, for providing heat source and conducting heat to the heat conduction module.The utility model increases the plasticity of the shaping workpiece material to be waited for under high temperature, fluidity becomes good, yield strength reduces by the mode of initiative heating, this makes shaping operation become more labor-saving, deformation more uniform, can significantly reduce residual stress and springback from root, to obtain higher and more stable shaping precision (such as reach 0.05mm flatness), and there is possibility to save expensive intermediate annealing process, improve efficiency, reduce cost.

The invention relates to an intelligent surveying and setting-out method applied to a building machine. The intelligent surveying and setting-out method comprises the following steps that S1, an intelligent total station is arranged on the top of the building machine; s2, a fixed point prism A and a fixed point prism B are arranged on the ground; s3, acquiring coordinate points of the fixed point prism A and the fixed point prism B by the intelligent total station to obtain a coordinate point C of the intelligent total station; s4, the intelligent total station emits pulse laser to a receiving prism at the top of the paying-off robot so as to obtain the distance and the angle, and the actual coordinate point D of the paying-off robot is obtained through the coordinate point C of the intelligent total station and the coordinate points of the fixed point prism A and the fixed point prism B; s5, the intelligent total station transmits the coordinate point D to a pay-off robot; and S6, the paying-off robot carries out elastic setting on the side line and the control line of the wall column according to the received known coordinate point D. According to the method, paying-off is directly conducted on the working floor through the total station in a measurement mode, paying-off precision is high, the procedures of measurement, paying-off and line snapping of measurement personnel are reduced, operation is easy and convenient, and the paying-off speed is high.

The invention relates to silica gel foam die cutting equipment and a processing method thereof, and relates to the technical field of foam production. The die-cutting machine comprises a die-cutting table, a discharging module, a die-cutting tool and a collecting module, the discharging module, the die-cutting tool and the collecting module are sequentially arranged on the die-cutting table, the die-cutting table is provided with a tool hole, the die-cutting tool extends out of the top face of the die-cutting table from the tool hole, a die-cutting frame is arranged above the die-cutting table and connected with a pressing device, and the pressing device comprises a pressing belt, a pressing assembly and a conveying assembly. The material pressing assembly is connected with the die cutting frame and pushes the material pressing belt towards the die cutting table, and the conveying assembly is connected with the die cutting frame and drives the material pressing belt to rotate. In addition, a tensioning assembly, an assisting idler wheel and a dust collection assembly are further arranged, the die cutting precision and the production efficiency are effectively improved, and meanwhile generation of sweeps and pollution are reduced. The die cutting device achieves the effects of improving the die cutting quality and the production efficiency and reducing the environmental pollution.

This utility model relates to a thread grinding machine, including a base, a chuck and a tailstock for clamping workpieces, and a horizontally movable wheel frame. A grinding wheel spindle and a drive motor are mounted on the wheel frame. A material discharge hole is formed on the upper surface of the base between the chuck and the tailstock. A funnel-shaped material collection bin with openings at both the top and bottom is installed at the bottom of the material discharge hole. A cleaning brush adapted to the inner wall of the material collection bin is installed inside the bin. The cleaning brush is connected to the base via a horizontal slide, and one end of the cleaning brush is connected to the wheel frame. The cleaning brush moves synchronously with the wheel frame, cleaning debris adhering to the inner wall of the material collection bin. This utility model, by providing a material discharge hole on the base and installing a funnel-shaped material collection bin, utilizes the horizontal movement of the wheel frame to drive the synchronous movement of the cleaning brush, achieving periodic cleaning of the inner wall of the material collection bin, effectively avoiding equipment failure and reduced machining accuracy caused by debris accumulation.

The present invention discloses a method, component and application of improving the lubrication performance of tungsten carbide-based metal ceramic coating. The method of improving the lubrication performance of tungsten carbide-based metal ceramic coating comprises: placing the tungsten carbide-based metal ceramic coating in a marine environment and soaking it for more than 1 month. A marine self-lubricating product in a dynamic evolution appears in the coating after being soaked in the marine environment, which has a significant positive effect on the lubrication performance of the coating, and ultimately greatly improves the lubrication performance of the tungsten carbide-based metal ceramic coating. This method has been experimentally verified and discovered for the first time, so that the friction coefficient of the coating is significantly reduced while maintaining high hardness.

This utility model belongs to the field of needle-punched nonwoven fabric processing technology, and in particular to a constant tension control mechanism for a winding roller of a roll forming machine. It includes a base plate, on the upper surface of which a housing, a constant tension control device, and two temperature sensors are fixedly connected. The housing covers the constant tension control device and temperature sensors. A tube frame is installed inside the housing. Two sets of rotating rods are rotatably connected to the inner wall of the housing. A water chiller is installed on the right side of the housing. The output and input ends of the water chiller penetrate the housing and are fixedly connected to the outer surface of the tube frame. Two sets of electric push rods are fixedly connected to the inner top wall of the housing. By setting up the housing and the water chiller, a circulating cooling system is formed using the water chiller and the tube frame. Simultaneously, the combined design of the electric push rods and electric heating tubes allows for flexible adjustment of the heating position and intensity according to actual needs, effectively regulating the temperature environment inside the housing and reducing the impact of temperature fluctuations on the material's elastic modulus and the roller's friction coefficient.

The utility model discloses a pipeline argon filling welding protection device which comprises two protection units. The protection unit comprises a ventilation pipe, a guide ring arranged at one end of the ventilation pipe and a positioning frame arranged at the other end of the ventilation pipe. An elastic sealing ring is arranged on the periphery of the guide ring; an annular groove is formed in the outer wall of the guide ring; the elastic sealing ring is connected in the annular groove in a sliding manner; the guide ring is provided with a first joint; three adjusting screws are arranged on the periphery of the positioning frame; and the adjusting screw is in threaded connection with the positioning frame. An argon protection cavity is formed in the position between the two welding pipes, operation is easy and convenient, and the welding quality and efficiency can be improved; the protection device is firmly fixed on the pipe wall by adjusting the screw, so that the protection device is prevented from loosening and displacing; and meanwhile, the guide ring provides guiding and supporting effects for the elastic sealing ring, the sealing effect between the elastic sealing ring and the pipe wall is improved, and the service life of the elastic sealing ring is prolonged.

The invention discloses a low-carbon automatic control method and system for the whole process of tunnel excavation and supporting, and the method comprises the steps that a controller issues a dual-energy-gathering smooth blasting hole distribution and charging control instruction to an excavation execution mechanism according to preset excavation contour parameters, the excavation execution mechanism executes blasting operation according to the corresponding control instruction, and the excavation contour parameters are determined according to the blasting operation; forming an excavation outline; according to an excavation outline, a support spraying area is divided into five subareas, a controller issues a spraying sequence instruction to a spraying execution mechanism according to a preset subarea execution sequence, and the spraying execution mechanism conducts real-time leveling and compactness control through a flexible scraper; the three-dimensional laser scanning module collects three-dimensional point cloud data of the surrounding rock and the support forming surface after jet support and transmits the three-dimensional point cloud data to the controller, and the controller compares the three-dimensional point cloud data with the BIM model and calculates the back break amount and the support deviation; and the controller adjusts the concrete supply plan, the deslagging scheduling and the mechanical energy consumption according to the back break amount and the support deviation.

The invention relates to the technical field of thermal interface materials, and discloses an elastic thermal interface material suitable for electronic packaging and a preparation method thereof. Comprising the following operation steps: step 1, uniformly dispersing heat-conducting insulating powder in a solvent to obtain a heat-conducting insulating powder dispersion liquid; carrying out freeze casting and freeze drying to obtain a heat-conducting aerogel skeleton; step 2, slowly dropwise adding a polydimethylsiloxane solution into a container filled with the heat-conducting aerogel skeleton along the wall, standing at room temperature after reaching a saturated state, and curing under a high-temperature condition to obtain an elastic thermal interface material; the heat-conducting insulating powder is boron nitride; the solid content of the heat-conducting insulating powder dispersion liquid is 5-20wt%. The elastic thermal interface material prepared in the scheme has good thermal conductivity and mechanical properties.

The utility model relates to the technical field of building safety and discloses an anti-smashing protective shed for building safety, which comprises a shed roof, supporting columns are arranged at four corners of the bottom of the shed roof, guard plates are arranged on the periphery of the top end of the shed roof, a protective plate is arranged above the shed roof, and a plurality of first springs are arranged on two sides of the top end of the shed roof. The top ends of the first springs are fixedly connected with the bottoms of the protection plates, fixing blocks are arranged on the two sides of the top end of the shed roof, first sliding grooves are formed in the fixing blocks, first sliding blocks in sliding connection are arranged in the first sliding grooves, and dampers are arranged between one sides of the first sliding blocks and the inner walls of the first sliding grooves. The damper is sleeved with a second spring, and a connecting rod is hinged to the top end of the first sliding block. Compared with the prior art, the anti-falling protective device has the advantages that the anti-falling protective device is provided with various anti-falling protective structures, falling objects are prevented from rolling onto the ground again, secondary falling is avoided, constructors are prevented from being injured, and the safety effect is good.

The invention discloses a preparation method of a plasma spraying / remelting diamond-Ni-based wear-resistant coating, and belongs to the technical field of wear-resistant coating preparation. The preparation method comprises the following five steps: selecting metal alloy powder, preparing a Cr-plated diamond, proportioning, preparing the wear-resistant coating by plasma spraying, and performing high-frequency induction remelting treatment. According to the special technical process for preparing the diamond wear-resistant coating, which is developed by combining the material characteristics and the process method, a new engineering technical route is provided for improving the wear resistance of the coating by using diamond as a super wear-resistant hard phase.

The invention belongs to the field of amorphous refractory products of refractory materials, and particularly relates to a high-erosion-resistance slag ladle spray coating and a preparation method thereof. The slag ladle spray coating comprises the following raw materials in parts by weight: 25-32 parts of bentonite, 21-40 parts of dolomite, 15-22 parts of clay, 11-20 parts of converter slag powder, 4-8 parts of refining slag powder, 5-10 parts of quick lime, 1-3 parts of an accelerator, 1-3 parts of an anti-slag agent and 2-5 parts of an additive. The slag ladle spray coating prepared by the method has certain rebound rate and breaking strength, also has certain stripping resistance, and is not easy to strip within a short time after being sprayed; and more importantly, the spraying material is good in sizing after being added into a suspending agent and uniformly stirred, does not precipitate, has good flowability and is convenient for construction.