221results about How to "Avoid inhomogeneity" patented technology

The invention provides a bismuth oxide-based epoxy resin composite material with a radiation shielding function as well as a preparation method and application of the bismuth oxide-based epoxy resin composite material. According to the preparation method disclosed by the invention, the bismuth oxide is subjected to surface modification, and after surface grafting modification by the coupling agent, the surface of the bismuth oxide is changed from strong hydrophilicity to strong hydrophobicity, so that the dispersity and interfacial compatibility of the bismuth oxide in an organic medium are remarkably improved. Secondly, preparing the composite material from the modified bismuth oxide, epoxy resin and a curing agent through a mechanical blending-vacuum defoaming combined process. On one hand, bismuth oxide, epoxy resin and a curing agent are uniformly mixed through mechanical blending; on the other hand, bubbles generated in the blending process are removed through vacuum negative pressure. The bismuth oxide in the composite material is uniformly distributed, no bubble exists in the body, and the surface is smooth and complete, so that the composite material has excellent gamma-ray shielding performance and good mechanical property. The process is simple, the yield is high, the product property is stable, and good economic benefits and environmental benefits are achieved.

The invention further discloses a preparation method of the wide-temperature-range, high-performance and high-binding-force soft and hard composite coating. The preparation method comprises the steps of cleaning, ion implantation, preparation of a soft layer metal Ti, preparation of a hard layer TiZrAlCrSiMN, preparation of a soft layer metal Zr and preparation of the hard layer TiZrAlCrSiMN. The invention further discloses application of the wide-temperature-range, high-performance and high-binding-force soft and hard composite coating in a dry cutting tool. The invention discloses the wide-temperature-range high-performance high-binding-force soft and hard composite coating which is prepared through the preparation method, and the wide-temperature-range high-performance high-binding-force soft and hard composite coating solves the problems that an existing tool coating is low in high-temperature hardness, poor in abrasion resistance and poor in erosion resistance and cracking resistance.

The invention relates to the field of waterproof sealing materials, and discloses a composite high-weather-resistance rubber waterstop which is composed of an outer layer, a middle layer and an inner layer. The outer layer contains 3%-8% of nano titanium dioxide, 2%-5% of nano zinc oxide, 50%-70% of a rubber matrix and 1%-3% of an ultraviolet light absorber, and the total proportion of the outer layer is 10%-20%. The middle layer is composed of 70%-85% of EPDM, 5%-10% of carbon fiber and 5%-10% of plasticizer, and the total proportion of the middle layer is 60%-75%. The inner layer is a dynamic covalent bond rubber material and contains 5%-10% of a vulcanizing agent and 1%-3% of an antioxidant, the rubber material accounts for 80%-90%, and the inner layer accounts for 15%-25% in total. Through a multi-layer composite structure, a dynamic covalent bond self-repairing material and an optimized vulcanization process, the comprehensive performance of the water-stop belt is remarkably improved, and particularly the durability and the service life of the water-stop belt in a long-term exposure environment are improved.

The invention relates to a rock mass gas blasting method based on stress wave guidance. The method is suitable for the technical field of geotechnical engineering and mining. The technical problem to be solved by the invention is to provide the rock mass gas blasting method based on stress wave guidance. According to the technical scheme, the method comprises the steps that stress wave simulation is conducted on the basis of geological conditions of a target rock mass, and a stress wave simulation result of the rock mass is obtained; determining an arrangement mode and an excitation working mode of an ultrasonic excitation source and a low-frequency excitation source based on the type of the rock mass, the crack propagation target depth and the stress wave simulation result of the rock mass; wherein the low-frequency excitation source is used for reducing the rigidity of the surface of a rock mass through low-frequency excitation, increasing micro-deformation and initial micro-cracks of the rock mass, creating conditions for propagation of ultrasonic waves and locally guiding the formation position of the cracks; the ultrasonic excitation source is used for enabling ultrasonic waves to effectively reach the deep layer of the rock mass by utilizing the high penetrability of the ultrasonic waves to excite the expansion of microcracks.

The invention discloses a preparation method of a graphene composite lithium iron phosphate positive electrode material, and relates to the technical field of positive electrode materials, and the preparation method comprises the following steps: S1, adding a graphene oxide into deionized water, and stirring to obtain a solution I; s2, dissolving ferric salt in deionized water according to the mass ratio of the ferric salt to graphene oxide of 1: 0.05, adding the solution I, and stirring to obtain a solution II; s3, sequentially adding phosphoric acid, ethylene glycol and lithium salt into the solution II according to the molar ratio of ferric salt to phosphoric acid to lithium salt of 1: 1: 3, and stirring to obtain a solution III; s4, putting the solution III into a reactor, covering and sealing, heating in a gradient water bath, soaking a product obtained in the water bath with deionized water, and drying in a vacuum freeze dryer; s5, vacuum drying; the crystallinity and morphology of the product are optimized by accurately controlling the water bath temperature and time; and a uniform and ordered crystal structure is formed by staged water bath, so that the electrochemical performance of the product is improved.

The invention discloses a superconducting mechanical oscillator quantum device based on a self-alignment processing technology and a preparation method thereof, and the method comprises the steps: preparing a bottom electrode and bottom lead photoresist structure on a first surface of a silicon-based substrate, and etching the first surface with the structure, so as to enable the first surface to be provided with a groove; growing a first superconducting metal film on the first surface with the groove, and stripping the first superconducting metal film outside the groove area to obtain a bottom electrode and a bottom lead; preparing a sacrificial layer photoresist structure on the first surface on which the bottom electrode and the bottom lead are formed, and etching to enable the bottom electrode to be flush with the first surface of the silicon-based substrate; continuously growing a sacrificial medium, and stripping the sacrificial medium outside the sacrificial layer photoresist structure to obtain a sacrificial layer; etching the sacrificial layer to enable the sacrificial layer to be flush with the first surface; growing a second superconducting metal film on the first surface with the sacrificial layer; preparing a top electrode, a lead and a top release hole on the surface of the second superconducting metal film; and removing the sacrificial layer through the top release hole to obtain the suspended mechanical oscillator.

The invention relates to the technical field of printing, in particular to a structural member with insulation and heat dissipation functions and a printing process thereof.The structural member comprises a base material layer, a graphite layer and a surface layer which are sequentially arranged from bottom to top, the base material layer is made of PA, and the surface layer is made of PI materials; the lowermost layer is made of a PA material, the middle layer is a graphite film, and the uppermost layer is made of a PI material; due to the excellent insulating and puncture-resistant performance of PA, when PA is in contact with a device conductor, the insulating and puncture-resistant functions can be effectively achieved. By means of the efficient heat conductivity coefficient of the graphite layer, the product has the heat dissipation effect of rapidly diffusing a single-point heat source. And the base material layer and the graphite layer are tightly combined by adopting a thermal compounding technology, so that the integrity of the structure is ensured, the production process is simplified, and the production efficiency is improved.

The invention relates to the technical field of chemical equipment, in particular to an efficient reaction kettle for sodium carboxymethyl cellulose production, which comprises a kettle body, a stirring motor is mounted at the top of the kettle body, a stirring shaft rotationally connected into the kettle body is fixedly arranged on an output shaft of the stirring motor, stirring blades are fixedly arranged on the outer wall of the stirring shaft, and a stock bin is further mounted at the top of the kettle body. The bottom of the stock bin extends into the kettle body, and a linkage type discharging mechanism connected between the stirring shaft and the stock bin is mounted on the top surface in the kettle body; according to the efficient reaction kettle for sodium carboxymethyl cellulose production, auxiliary materials can be added into materials in multiple times, the reaction rate can be better controlled, too violent or non-uniform reaction is avoided, the stability of the reaction process is ensured, the reaction uniformity and the product quality are further improved, and the production efficiency is improved by adjusting the time interval of adding the auxiliary materials every time. And the characteristics of the final product, such as viscosity, solubility and the like, can be optimized, so that the final product better meets the requirements of specific application.

The invention relates to a cutter running-in machine of a shield tunneling machine, which belongs to the technical field of shield tunneling machines and comprises a base, a mounting seat, a cutter running-in testing device and a cutter mounting device, a fixed mounting frame is arranged at the top of the mounting seat; the cutter running-in testing device comprises a driving part arranged on the fixed mounting frame and an executing mechanism connected with the driving part, and the driving part can drive the executing mechanism to drive the cutter ring to rotate; the tool mounting device comprises a directional moving assembly arranged at the top of the base, a tool assembling seat is arranged at the top of the directional moving assembly, the directional moving assembly can drive the tool assembling seat to perform directional displacement, and the tool running-in testing device is matched with an executing mechanism through a driving part arranged on a fixed mounting frame. The cutter ring can be stably and efficiently driven to rotate, so that the running-in test of the cutter is realized, and the non-uniformity and instability in the traditional running-in detection are avoided.

The invention discloses a preparation method of a rod-like selenium nano-carrier, and belongs to the technical field of nano-pesticides. The rod-like selenium nano-carrier is formed by converting chitosan modified amorphous selenium (a-Se) into single crystal ash selenium (t-Se). The amorphous selenium is initially spherical, and after chitosan modification, the spherical amorphous selenium is converted into single crystal ash rod-shaped selenium nanoparticles. The length of the rod-like selenium nano-carrier is 590-610 nm, the diameter of the rod-like selenium nano-carrier is 20-25 nm, the effective average particle size of the rod-like selenium nano-carrier is 90-110 nm, the drug loading rate is 39.28% + / -2%, and the encapsulation efficiency is 64.90% + / -3%. In addition, the invention also provides an application of the rod-like selenium nano-carrier in a nano bactericide material.

The invention provides a shallow trench isolation structure, a preparation method thereof and a semiconductor device, an insulating blocking layer is formed by adopting a non-ISSG process after an oxide repair layer is formed by adopting an ISSG process and before a silicon oxide film is formed, and the blocking layer made of an insulating material can block-OH and-H ions mixed in the oxide repair layer, so that the isolation performance of the semiconductor device is improved. Therefore, nonuniformity of consumption of active sites-C-H when ozone and TEOS thermal chemical reaction are carried out by more-OH ions in the shallow trench and less-OH ions on the hard mask layer is avoided, consistency of deposition rate and uniformity of a silicon oxide film inside and outside the shallow trench is improved, early sealing of the top of the shallow trench is avoided, and the yield of the shallow trench is improved. Holes and / or gaps in the shallow trench isolation structure are reduced, the hole filling capability and quality of the HARP process are improved, and the reliability and stability of a semiconductor device formed subsequently are improved. In addition, the deposition uniformity of the HARP process on ISSG OX can be improved, and the load of the subsequent CMP process is reduced; in addition, a process window of HARP can be increased, and the back etching amount of the hard mask layer is reduced.

The invention relates to the technical field of peanut kernel transportation, and discloses a peanut kernel conveying system with a sorting function and a conveying method.The peanut kernel conveying system comprises a feeding module used for containing peanut kernels to be conveyed and sucking the peanut kernels for flow guiding; the conveying module is arranged at the end, provided with the conveying channel, of the feeding module and used for conveying the guided peanut kernels. The sorting module is arranged at the end, away from the feeding module, of the conveying module and used for sorting the peanut kernels conveyed by the conveying module. The image obtaining module is arranged above the conveying module and used for obtaining images of the peanut kernels conveyed by the conveying belt. The central control module is used for determining the suction power when the peanut kernels are sucked according to the weight of the peanut kernels. The central control module is further used for determining the conveying speed when the conveying module conveys the peanut kernels according to the suction power of the peanut kernels and the image of the peanut kernels conveyed by the conveying belt. By accurately controlling and adjusting the suction power and conveying speed of peanut kernels, the working efficiency during peanut kernel conveying is improved.

The invention relates to the field of cell biology, and particularly discloses a neural stem cell induced differentiation culture medium and application thereof in preparation of neural stem cells. The neural stem cell induced differentiation culture medium is composed of a basic culture medium and additives, wherein the additives are composed of an N-2 additive, a B-27 additive, glutamine, a human leukemia inhibiting factor, a GSK-3 inhibitor, an ALK inhibitor, a gamma-secretase inhibitor and a CDK8 inhibitor. The neural stem cell induced differentiation culture medium is clear and simple in component, does not need to use antibiotics, and does not contain animal-derived components. When the culture medium is used for carrying out differentiation induction on the human pluripotent stem cells, the human pluripotent stem cells can be induced and differentiated into the neural stem cells within a short time (6-7 days) without depending on pluripotent stem cell cloning and a single cell state, the nonuniformity of pluripotent stem cell cloning formation can be overcome, and the purity of the neural stem cells is improved.

The utility model relates to the technical field of mutual inductor iron core winding, and discloses a mutual inductor iron core winding device which comprises a workbench. A main shaft and a servo motor used for driving the main shaft to rotate are installed on the workbench, a sleeve block connected to the main shaft in a sliding and sleeving mode and a driving piece used for driving the sleeve block to move on the main shaft are installed on the workbench, and a ventilation pipe located on one side of the main shaft is connected to the sleeve block through an elastic piece. A roller type dust blowing piece communicated with the ventilation pipe is rotationally connected to the ventilation pipe in a sleeving mode, and an air supply piece used for guiding and feeding air to the ventilation pipe is installed on the workbench. The utility model provides a mutual inductor iron core winding device which solves the problem that when dust exists on the surface of an iron core, uneven dust deposition possibly occurs in the winding process.

The utility model relates to the technical field of food seasoning devices, and discloses a seasoning powder scattering device which comprises an open material tank rotationally connected to a supporting frame, a fixing rod is fixed in the material tank, a connecting cylinder is arranged outside the fixing rod in a sliding and sleeving mode and penetrates through the material cylinder, a short rod is vertically fixed to the circumferential side face of the connecting cylinder, and the short rod is connected with the supporting frame in a sliding mode. A circular plate is vertically fixed to the end of the short rod, the axial direction of the circular plate is perpendicular to the axial direction of the charging barrel, a groove is formed in the circle center of the circular plate, and a universal ball in a driving assembly is rotationally connected into the groove in a limited mode. The material scattering device has the advantages and effects that the material scattering uniformity is improved, and the material scattering efficiency is guaranteed.

The invention discloses a preparation method of ultra-high molecular weight polyethylene with consistent particle size distribution, which comprises the following steps: adding hexane into a first reaction kettle as a solvent, and adding a catalyst, raw materials ethylene and hydrogen into the first reaction kettle for prepolymerization reaction; after the pre-polymerization reaction, reaction slurry discharged from the first reaction kettle enters a second reaction kettle for polymerization reaction; and after polymerization is completed, reaction slurry discharged from the second reaction kettle is subjected to post-treatment, and a finished product is obtained. The catalyst comprises a main catalyst, a cocatalyst and an electron donor; the main catalyst is titanium tetrachloride doped with a magnesium compound; the cocatalyst is aluminum oxide loaded triethyl aluminum and / or diethyl aluminum chloride; the electron donor is a siloxane compound. According to the invention, through a prepolymerization process and catalyst optimization, high-quality ultra-high molecular weight polyethylene with super consistent particle size distribution is prepared.

The invention discloses an outdoor product pipe framework welding device, and relates to the technical field of pipe welding. By means of the meshing effect between the two driving gears, the two pipes needing to be welded oppositely rotate by the same angle, so that the two pipes are aligned to the clamped framework body, it is guaranteed that the welded pipes are in a symmetrical state, and compared with the mode that a worker holds the pipes with one hand and uses a welding gun with the other hand for welding in the prior art, the welding efficiency is greatly improved. The device controls the relative rotation angle of the two pipes, so that the two pipes rotate oppositely according to the set angle, the welded pipes are symmetrical, and the situation that the traditional welding technology depends on hand-held angle adjustment of workers, and the welding angles are inconsistent due to manual operation errors is avoided, so that the symmetrical angles are beneficial to uniform distribution of welding seams, and the welding quality is improved. And the structural strength of the welded framework can be improved.

The invention discloses a production method of a 1Cr17Ni2 crane shaft forge piece. The production method sequentially comprises the steps of heating before forging, forging, cooling after forging, rough machining, heat treatment and finish machining. The forging is made of 1Cr17Ni2 steel, and the 1Cr17Ni2 steel comprises, by mass, 0.12%-0.2% of C, smaller than or equal to 1% of Mn, smaller than or equal to 0.04% of P, smaller than or equal to 0.03% of S, smaller than or equal to 1% of Si, 15%-18% of Cr, 2.2%-3% of Ni and the balance Fe and inevitable impurities. The production method of the 1Cr17Ni2 crane shaft forge piece is based on 1Cr17Ni2 steel, and the mechanical performance of the forge piece is improved by strictly controlling the content of element carbon and nickel in the steel for forging; blank cracking caused by heating stress is effectively avoided through stepped heating, the forging piece obtains good mechanical performance through the appropriate forging ratio, excessive growth and nonuniformity of crystal grains are prevented, and the cooling process after forging is regulated and controlled to prevent cooling stress caused by room temperature cooling. The forging is a combined forging, the combined forging is divided into a plurality of single forgings in the rough machining step, the production efficiency is high, and the mechanical properties of the produced single forgings are similar.

The utility model relates to the technical field of stem cell culture facilities, and discloses a biological stem cell culture dish which comprises a base, a fixing ring is fixedly connected to the inner wall of the top of the base, containing columns are fixedly connected to the inner walls of the four sides of the fixing ring, and limiting plates are slidably connected to the interiors of the containing columns. A first spring is arranged in the containing column, a sliding rod is fixedly connected to one side of the limiting plate, a clamping block is fixedly connected to one end of the sliding rod, a culture vessel is arranged on the inner wall of the top of the base, a cover plate is rotatably connected to the rear end of the top of the base, and a sealing ring is fixedly connected to the front end of the cover plate. The inner wall of the front end of the cover plate is fixedly connected with a sealing assembly. According to the utility model, the position of the culture vessel is fixed, the non-uniformity of a cell layer caused by the movement or vibration of the culture vessel in the culture process is prevented, and the repeatability and the accuracy of an experimental result are prevented from being influenced.

The invention discloses an optical coating rubbing coating as well as a preparation method and application thereof, and belongs to the technical field of coatings. The coating comprises a first treating agent layer, a colored paint coating layer, a UV primer layer, an optical coating layer, a second treating agent layer, a PU intermediate paint layer, a gold stamping layer, a third treating agent layer and a UV finish paint layer. The structure of the optical coating layer is five, and the material of the optical coating layer comprises silicon dioxide, lithium sesquioxide, silicon dioxide, lithium sesquioxide and silicon dioxide metal overlapped coating layers which are sequentially coated on the UV primer layer. The preparation method of the coating comprises the following steps: sequentially spraying the first treating agent layer, the colored paint coating layer and the UV primer layer on the surface of the base material, carrying out optical coating, continuously spraying the second treating agent layer and the PU intermediate paint layer, carrying out gold stamping treatment, continuously spraying the third treating agent layer and the UV finish paint layer. Through the synergistic effect of different components, the adhesive force of the coating is improved, and meanwhile the coating has the good metal texture and the high-texture visual effect.

The invention discloses an anti-splashing ultrasonic welding machine for precision mechanical engineering, and relates to the technical field of ultrasonic welding, the anti-splashing ultrasonic welding machine comprises a machining frame and further comprises an anti-splashing device, a machining rod is fixedly mounted at the top of the machining frame, and displacement equipment is slidably mounted on the circumferential surface of the machining rod; the ultrasonic welding equipment is arranged on the front side of the displacement equipment, a baffle is fixedly installed on the surface of the machining frame, a machining groove is formed in the top of the machining frame, and the anti-splashing device comprises an L-shaped rod, an anti-splashing plate, a shielding hole, a hollow rod, a connecting rod and a U-shaped frame. The splash-proof plate is limited by the U-shaped frame and matched with the baffle to shield waste residues generated by welding together, the splash-proof plate is limited through the U-shaped frame, it can be ensured that the splash-proof plate is always in a shielding state in the welding process, and therefore welding splash, sparks and other high-temperature substances are effectively blocked, and the situation that the protective cover is accidentally opened during operation is effectively avoided.

The invention provides a method for promoting growth of dysprosium scandate single crystals, which comprises the following steps: preparing raw materials: uniformly mixing the raw materials, and putting into a crucible; setting growth conditions: putting the crucible filled with the raw materials into a high-temperature furnace, and setting temperature gradient, pressure and growth speed; growing by a lifting method: in the growth process, slowly lifting the seed crystal from the molten raw material at a constant speed through a lifting device, and controlling the cooling rate of the crystal to promote the growth of the single crystal; real-time weighing monitoring: in the upward lifting process, carrying out real-time weighing monitoring on the growing single crystal by using a high-precision weighing device, and adjusting growth parameters to maintain the stability and uniformity of the quality of the single crystal; compared with the prior art, the method has the following beneficial effects that by controlling the growth speed and the temperature gradient, defects and internal stress caused by thermal stress in the crystal growth process can be effectively reduced, and the integrity and the mechanical strength of the crystal are improved.

The present invention relates to the technical field of wet clay sand core making, and specifically to a fully automatic wet clay sand core making machine, comprising a workbench, a support plate being installed on the upper surface of the workbench; a fixed plate being installed at the center position of the upper surface of the workbench; a uniformly distributed sliding rod is fixedly installed on the side of the fixed plate away from the workbench; a movable plate is slidably connected to the side of the sliding rod away from the fixed plate; a first cylinder is fixedly installed on the upper surface of the support plate; an output end of the first cylinder passes through the support plate and is fixedly connected to the upper surface of the movable plate; a sand core box is installed on the opposite side of the movable plate and the fixed plate; the sand core box is detachably connected to the movable plate and the fixed plate through a fixing device; a spraying device is connected through the center position of the fixed plate, and the present invention arranges a circulation pipe, utilizes airflow to drive the demoulding agent to evenly spray the inner cavity of the sand core box, and utilizes the circulation of airflow to recycle the excess demoulding agent, thereby enhancing the applicability of the present application.

The utility model relates to the technical field of wall washing lamps, and discloses a wall washing lamp which comprises a power source assembly and a light source assembly, the light source assembly comprises a first shell, a reflector and a light source module, the reflector and the light source module are arranged on the first shell, and the light source module is electrically connected with the power source assembly; the reflector is provided with a concave reflecting curved surface, the reflecting curved surface is provided with a plurality of first oblique curves and a plurality of second oblique curves, the first oblique curves are parallel, the second oblique curves are parallel, and the first oblique curves and the second oblique curves intersect to form a plurality of rhombic armor bodies. And the light source module is positioned right opposite to the reflecting curved surface. And non-uniformity of light spots and non-uniformity of brightness and darkness distribution can be avoided. Furthermore, the number of lamps can be reduced, and the overall cost is reduced. When the light source module is located right opposite to the reflector, light beams emitted by the light source module can be fully reflected out by the reflector, and the illumination brightness can be improved.

The invention discloses a preparation method of a high-pressure-resistant corrosion-resistant aluminum oxide ceramic nanofiltration membrane support, which comprises the following steps: firstly, uniformly wrapping the surfaces of aluminum oxide ceramic particles with nano particles by adopting a high-pressure hydrothermal method, and filling the nano particles into crack defects in the particles; then, a microwave low-temperature rapid one-time sintering method is adopted, a uniform and rapid heating mode is utilized, and the wave absorbing efficiency of the nanometer amorphous aluminum oxide particles is higher than that of the large-particle alpha-aluminum oxide, so that the nanometer aluminum oxide particles are stably and rapidly combined into the surface and internal cracks of the large-particle aluminum oxide ceramic powder. According to the method, the phenomena of desorption, agglomeration and segregation of nano-particles possibly occurring in the subsequent mixing, forming and sintering processes are effectively avoided, and the phenomena possibly cause defects and non-uniformity of the ceramic membrane support body. Meanwhile, compared with a traditional heating method, the microwave heating in the invention avoids the problems of uneven temperature distribution and abnormal agglomeration and growth of nanocrystals.

The utility model relates to the technical field of instant adhesive dispensing equipment, and discloses anti-solidification instant adhesive dispensing equipment which comprises a machine body, an adhesive dispenser is arranged at the top of the machine body, a heating adhesive barrel is arranged on the side wall of the machine body, an adhesive pump is fixedly connected to the top of the heating adhesive barrel, an output pipe is fixedly connected to the top of the adhesive dispenser, and the output pipe is fixedly connected to the side wall of the machine body. A clamping assembly is arranged on the outer wall of the glue pump and comprises a plurality of connecting shafts, and the connecting shafts are fixedly connected to the outer wall of the glue pump. According to the glue dispensing device, instant glue is heated to a certain temperature by heating the glue barrel, so that the instant glue is kept in a flowing state suitable for glue dispensing, it is guaranteed that the glue cannot be solidified in the output pipe, the rotating plate is pressed to rotate so that the clamping plate can be lifted up from the output pipe and cannot be clamped any more, the output pipe can be conveniently disassembled and assembled, glue residues are avoided, and the pipeline is kept smooth; and therefore, the reduction of dispensing precision or equipment failure caused by glue blockage or solidification is reduced.

The utility model belongs to the technical field of reinforcing steel bars, in particular to a device for quickly inserting reinforcing steel bars, which comprises a reinforcing steel bar body and a moving pipe, an adjusting mechanism is arranged on the outer surface of the moving pipe, the adjusting mechanism comprises a fixing block, the moving pipe is fixed by the movement of the fixing block, and the reinforcing steel bar body is fixed by arranging the fixing mechanism. A plurality of arc-shaped grooves are formed in the rotating pipe, when the rotating pipe rotates, due to the fact that the arc-shaped grooves are in sliding connection with the fixing plate, the rotating pipe slides in the arc-shaped grooves, reinforcing steel bar bodies with different diameters are fixed, a plurality of limiting grooves are formed in the circular plate, the fixing plate in sliding connection with the circular plate can be limited, and the fixing plate is prevented from sliding excessively or unevenly; one fixing plate is slidably connected with the other fixing plate in an inserted mode, and movement of the fixing plates is not affected while the fixing plates are fixed, so that stability of movement of the fixing plates is guaranteed.

The present invention relates to the field of stainless steel wire rolling, and specifically to a high-speed wire rolling method for soft magnetic stainless steel wire rods. The method of the present invention includes billet heating, high-speed rolling and controlled cooling. The present invention optimizes the design and precise control of the billet heating temperature, the start rolling temperature, the temperature of the finishing mill, the wire laying temperature, the rolling speed and the rolling reduction. After the wire laying, the Stelmor air cooling line is used to achieve a cooling speed of ≥8°C / S, so that the soft magnetic stainless steel wire rod is prepared without cracking during rolling, and the rolling yield is improved. The comprehensive rolling yield is ≥96%, and the prepared soft magnetic stainless steel wire rod has excellent surface quality; and the problem of coarse metallographic structure in the core of the soft magnetic stainless steel wire rod is solved, so that the metallographic structure in the core is homogenized, and the obtained soft magnetic stainless steel wire rod has good plasticity and mechanical properties, tensile strength ≤580MPa, elongation ≥25%, and shrinkage ≥50%.

The utility model discloses corrosion protection coating spraying equipment for a railway track, which comprises a track cart, and a spraying mechanism for spraying the surface of the railway track is fixedly arranged above the track cart. The spraying mechanism comprises a first coating tank, a second coating tank and a coating conveying mechanism, the first coating tank and the second coating tank are fixedly arranged above the track trolley, one end of the coating conveying mechanism is connected with the output end of the first coating tank and the output end of the second coating tank at the same time, and the other opposite end of the coating conveying mechanism can partially extend out of the track trolley and is in transmission connection with a driving source arranged outside the track trolley; the coating nozzles are symmetrically arranged on the two sides of the coating conveying mechanism, one end of each coating nozzle is communicated with a coating mixing pipeline in the middle of the coating conveying mechanism, and the other opposite end of each coating nozzle is in surface contact with the conical surface guide part on the periphery of the track trolley, so that the coating nozzles can partially extend out of the track trolley; and a paint spraying surface in the paint spraying nozzle is arranged below the track trolley in the vertical direction and is used for uniformly spraying the surface of the railway track.

The utility model relates to the technical field of flange welding devices, and discloses a garbage pipeline flange welding device which comprises a frame body, welding equipment is arranged on the side wall of the frame body, and a positioning assembly is arranged on the side wall of the frame body. According to the garbage pipeline flange welding device, a limiting block abuts against the inner wall of a pipeline and the inner wall of a flange, the axis of the pipeline coincides with the axis of the flange, a driving lead screw rotates to drive a driven lead screw to rotate through transmission of a belt, the driven lead screw drives a limiting ring to transversely move, and the limiting ring pushes an outer clamping block to abut against the outer wall of the pipeline; by clamping the inside and the outside of the pipeline, it is ensured that the pipeline and the flange are kept at the stable positions in the welding process, the welding seam assembly quality problem is avoided, the welding quality is improved, the rotating wheel rotates to drive the pipeline and the flange to rotate, and due to the fact that the position of welding equipment is not changed, it is ensured that the welding equipment can evenly and continuously apply welding seams; and the non-uniformity and the interruption of welding seams are avoided, and the welding quality is improved.