58 results about "Fracture prevention" patented technology

A choke valve having flow trim components, namely a tubular cage and a flow collar or plug, and related components, designed and arranged for reduced fracturing. The invention includes a protective tubular sleeve, or insert cartridge in which the side ports are located to overlap with the intersection of axes of the inlet and outlet bores, but to avoid direct impingement of fluid along the axis of the inlet bore. In the cage, at least a pair of main flow ports are located to overlap with the intersection of the axes of the inlet and outlet bores, and are aligned with the side ports of the tubular sleeve or cartridge to communicate directly with the side ports. In this manner fluid may enter the choke valve through the inlet bore and pass through the main flow ports at reduced pressure and continue out through the outlet bore, without direct impingement on the side wall of the flow trim components.

Methods, apparatus, compositions for reinforcing bone structures are disclosed as well as a reinforced bone structure itself. By injecting a low viscosity polymeric solution into a trabecular bone region at least partly surrounded by cortical bone allowing it to cross-link in-situ, a non-degradable gel can effectively reinforce the region by retaining fluid in the constrained space within the cortical shell. Due to the low viscosity of the pre-cross-linked aqueous polymeric solution, the entire site could be filled effectively and consistently. Additionally, by injecting a low viscosity pre-cursor, the solution fills the natural intra-trabecular spaces without substantial alteration of the trabecular structure at the site.

A choke valve having flow trim components, namely a tubular cage and a flow collar or plug, and related components, designed and arranged for reduced fracturing. The invention includes a protective tubular sleeve, or insert cartridge in which the side ports are located to overlap with the intersection of axes of the inlet and outlet bores, but to avoid direct impingement of fluid along the axis of the inlet bore. In the cage, at least a pair of main flow ports are located to overlap with the intersection of the axes of the inlet and outlet bores, and are aligned with the side ports of the tubular sleeve or cartridge to communicate directly with the side ports. In this manner fluid may enter the choke valve through the inlet bore and pass through the main flow ports at reduced pressure and continue out through the outlet bore, without direct impingement on the side wall of the flow trim components.

A corrosion-resistant fracture-prevention plastic woven bag is characterized by being prepared from, by weight, 40% of waste polyolefin plastic, 40% of polyurethane waste materials, 2% of nano silicon carbide, 5% of metallocene polyethylene, 5% of linear low-density polyethylene, 0.5% of antioxidants, 0.5% of hindered amine light stabilizers, 0.5% of nano titanium carbide, 0.5% of fire retardants, 0.5% of lubricating agents, 1% of calcium stearate, 0.5% of tributyl citrate, 0.5% of vital gluten, 1% of tert-butyl mercaptan, 1% of ash calcium powder, 1% of lignin, and 0.5% of carbon fibers. According to the corrosion-resistant fracture-prevention plastic woven bag, the formula is simple, the cost is low, the made plastic woven bag has good corrosion resistance, breakage of silk threads can be effectively prevented, and the problem that in the prior art, the working life of a packing bag is short is solved.

The invention relates to the technical field of display, and discloses a color film substrate, a liquid crystal display panel, and a liquid crystal display. The color film substrate comprises a substrate baseplate and a color filter layer formed on the substrate baseplate. The color filter layer is provided with a plurality of sunken portions whose openings are opposite to a substrate baseplate direction. The edge of each sunken portion forms a step shape structure, and the dimension of the opening of the sunken portion is larger than the dimension of a bottom of the sunken portion. The color film substrate is provided with the sunken portions whose edges are step shape structures on the color filter layer. The sunken portions are used to change force condition of the whole color filter layer in a bended state, color resistance stress on the color filter layer is reduced when a display screen bends, and a technical process of adding a fracture prevention protection layer on the color filter layer is simplified, manufacturing time is shortened, and production cost is reduced.

A processing method of a pre-stressed concrete reinforced pile comprises the following steps: firstly, preparing a reinforcement cage which adopts an integral structure with both an inner-layer reinforcement cage and an outer-side reinforcement cage, wherein the reinforcement cage takes high-strength stirrups as the basis and is supported by mutually staggered regularly triangular racks; a steel mould of a reinforced pile is filled with high-strength concrete, the high-strength concrete is subjected to curing molding to obtain the end product of the pre-stressed concrete reinforced pile. The processing method has the following beneficial effects: the stability of the triangles enhances the strength of the reinforcement cage; the regular triangles can guarantee uniform space between main ribs; the strength of the processed and manufactured reinforcement cage can be structurally improved greatly; in addition, pre-stressed concrete steel bars which are manufactured through special formulas and machining process have the strength exceeding 2,000 MPa and the ductility higher than 7%, and also have good drawability and delayed fracture prevention characteristic, and therefore, the shearing, bending and cracking resistance are greatly improved; the preparation cost is only that of the 1,420 MPa pre-stressed concrete steel bars, so that the cost is greatly lowered.

The invention relates to a multifunctional paper yarn wall paper compounding machine, which belongs to paper and yarn compounding machinery and comprises a magnetic powder brake, a constant tension uncoiling device, a paper coil, a gluing device, a support frame body, a yarn coil, a constant tension multi-layer yarn uncoiling device, a steel buckle, an optical yarn fracture prevention sensor, an expansion roller, a temperature sensor, a front braking tube device, an air cylinder, a steel roller, a back baking tube device, a cooling device, a traction device, a counter, a constant tension center coiling device, a magnetic powder clutch, a servo motor, a combined gearbox, a stepless speed changer, a deflection correcting roller, a clutch gearbox, a net belt, a main silicon gel roller and a computer control cabinet, wherein the multifunctional paper yarn wall paper compounding machine is designed by adopting and combining a computer closed loop technology and mechanical and thermal engineering principles. The machine has the advantages that the automation degree is high, the production efficiency is high, the production cost is reduced, the operation is safe and convenient, the produced paper and yarn compounding material is a novel environment-protection compounding material, the quality is good, the energy is saved, the environment is protected, the folding resistance and tensioning resistance intensity is high, the colors are rich, the use is convenient, and the pasting is firm.

The invention discloses a polypropylene honeycomb hollow plate material, belonging to the field of multi-layer co-extrusion molded hollow plate materials. The polypropylene honeycomb hollow plate material is characterized in that an internal structure comprises the following components in percentage by weight: 60-80% of polypropylene, 5-15% of talcum powder, 1-10% of polyethylene, 0.5-2.5% of aliphatic series, 0.5-2.5% of calcium carbonate, 1-10% of titanium dioxide, 1-10% of aluminum oxide and 10-20% of glass fiber. The polypropylene honeycomb hollow plate material disclosed by the invention solves the defects that a conventional plastic hollow plate is poor in impact resistance, can be deformed when being compressed and is not solid, has the excellent properties of high strength, pressure resistance, abrasion resistance, thermal insulation, impact resistance, fracture prevention and the like, and is wide in application range and good in use effect.

The invention relates to the technical field of display, and discloses an array substrate. The array substrate comprises grid lines, data lines and a plurality of pixel units defined by intersecting the grid lines and the data lines. Each pixel unit comprises at least one TFT, and a graph of at least one of an active layer and a drain electrode of each TFT is of a fracture-prevention structure. According to the array substrate, as the graphs of the active layers or the drain electrodes and the like of the TFTs are manufactured to be of the fracture-prevention structures, when a flexible display device is bent, part of tension can be dispersed, the fracture probability of the TFTs when the flexible display device is bent is lowered, and it is guaranteed that the flexible display device can normally carry out display.

The invention discloses a real-time chain fracture prevention safety lock which comprises a lifting chain, a chain fracture detection switch, a left upright column and a right upright column, wherein a left guide block and a right guide block are mounted on the left upright column and the right upright column respectively; a left oblique groove and a right oblique groove are formed in one side of the left guide block and one side of the right guide block respectively; a left sliding block and a right sliding block are mounted in the left oblique groove and right oblique groove in a sliding fit manner respectively; a row of toothed bars is mounted at one side of the left sliding block; a row of toothed bars is mounted at one side of the right sliding block; a left spring seat and a right spring seat are fixedly arranged at the tops of the left guide block and the right guide block respectively; springs are correspondingly connected between the left spring seat and the top end of the left sliding block and between the right spring seat and the top end of the right sliding block respectively; a left connecting rod and a right connecting rod are hinged to the bottom ends of the left sliding block and the right sliding block respectively; an electromagnet is arranged between the bottoms of the left upright column and the right upright column; the chain fracture detection switch is electrically connected with the electromagnet through a controller; a pull rod is hinged to the bottom ends of the left connecting rod and the right connecting rod; the bottom end of the pull rod extends to a place above an iron core of the electromagnet; and the pull rod is in clearance fit with the iron core. With the adoption of the structure, a comb-shaped rack and a vehicle on the comb-shaped rack can be protected effectively, and unnecessary accidents are precluded.

The invention discloses an automatic combing device for fine-wool sheep breeding according to the wool thickness. The automatic combing device structurally comprises an opening and closing door, an underframe, an upper working platform, a transmission wire, a control panel, a driving motor, a sheep back spraying and carding mechanism, a form and position transformation combing mechanism and a trough. The automatic combing device for fine-wool sheep breeding according to the wool thickness has the advantages that the form and position transformation combing mechanism is arranged, and a spring rod, a supporting column and a carding transformation mechanism are combined with one another so that the form and position transformation combing mechanism can self-adjust the carding position according to the body form and wool thickness of the sheep, wool at the side of the sheep abdomen is comprehensively carded, and the skin at the side of the sheep abdomen is not damaged; the sheep back spraying and carding mechanism is arranged, and a liquid spray port cooperates with a driven rotating rod to spray a drug liquid in a drug liquid tank onto the wool, thereby preventing and controlling diseases and pests, improving the flexibility of the wool, and facilitating carding of the subsequent wool; a wool fracture prevention structure cooperates with a massage rod to card the wool while massaging the sheep back.

The invention discloses a high-strength fracture prevention air conditioner radiator aluminum alloy sheet. The high-strength fracture prevention air conditioner radiator aluminum alloy sheet comprises the chemical elements of, by mass, 0.12-0.36 part of Cr, 0.15-0.30 part of Mg, 0.21-0.55 part of Cu, 1.22-1.77 parts of Zn, 0.11-0.18 part of Hg, 0.07-0.15 part of V, 0.15-0.28 part of Zr, 0.02-0.06 part of Nb, 0.01-0.03 part of Fe, 0.1-0.5 part of an aluminum alloy leavening agent, and the balance Al. Through addition of Nb and other elements, smell and impurities in alloy are reduced, mobility is improved, ingot formation through pouring is facilitated, and the technical performance is remarkably influenced. Grains of the aluminum alloy sheet are refined, high strength and impact toughness are achieved, the probability of cracks can be reduced through addition of Hg, and the aluminum alloy sheet has good corrosion resistance. By means of a production method, the phenomena of layering, peeling, bubbling and cracking of aluminum alloy are reduced, and the rate of finished products is increased. A refining agent is good in refining effect, so that the phenomena of pores and slag inclusion are reduced remarkably.

The invention discloses a special conduction oil resistant high pressure conveying pipe. The special conduction oil resistant high pressure conveying pipe sequentially comprises an inner rubber layer,an inner skeleton layer, an inner rubber layer, an outer skeleton layer and an outer rubber layer from interior to exterior. The inner rubber layer is composed of, by weight part, 80-100 parts of inner rubber, 4-6 parts of a plastifying softener, 6-10 parts of cyclohexyl sulfo-phthalimide, 7-12 parts of raw methyl vinyl silicone rubber, 12-18 parts of butadiene-acrylonitrile rubber, 1-5 parts ofcalcium carbonate, 2-4 parts of diethylene glycol, 3-5 parts of carbon black, 2-4 parts of 1,2-ethylene thiourea, 4-8 parts of white oil, 3-7 parts of a fracturing prevention agent, 2-6 parts of fiber, 3-10 parts of lead tetroxide, 2-5 parts of dibutyl phthalate and 1-3 parts of Rhine wax. The special conduction oil resistant high pressure conveying pipe is reasonable in design, simple in structure and long in service and has the advantages of being resistant to oil, high temperature and abrasion, high in tenacity and fracture resistance and resistant to corrosion and aging, and has popularization significance.

The invention discloses a fracture-prevention protecting sleeve material for cables. The fracture-prevention protecting sleeve material contains the following raw materials in parts by weight: 5-65 parts of PVC resin, 10-70 parts of three-form resin, 6-36 parts of chlorinated polyethylene, 4-24 parts of white carbon black, 5-35 parts of bentonite, 3-17 parts of polyolefin, 4-18 parts of stearic acid, 4-24 parts of chlorinated polyethylene, 3-13 parts of nylon, 0.5-2.5 parts of an impact modifier, 0.1-1.7 parts of an antioxidant and 0.3-1.3 parts of a flame retardant. The fracture-prevention protecting sleeve material has the advantages of fracture prevention, good safety performance, long service life and the like.

The invention provides a fracture prevention transmission shaft assembly for a petroleum mine drilling tool. The fracture prevention transmission shaft assembly comprises a transmission shaft; the endof the transmission shaft is connected with a water passing connector; the outer surface of the transmission shaft is sleeved with a transmission shaft housing; an upper section part subassembly, a middle section part subassembly, a shock pad, a spacer bush subassembly and a lower section part subassembly are sequentially arranged on the transmission shaft; the upper section part subassembly is sequentially provided with an upper radial bearing inner ring and an upper radial bearing outer ring from the inside out; the lower section part subassembly is sequentially provided with a lower radialbearing inner ring and a lower radial bearing outer ring from the inside out; the middle section part subassembly is sequentially provided with a string bearing inner ring, steel balls and a string bearing outer ring from the inside out; the spacer bush subassembly is sequentially provided with a first spacer bush, an outer sleeve, a clamp sleeve and a second spacer bush from the top down; and the outer sleeve sleeves the excircle of the clamp sleeve. The fracture prevention transmission shaft assembly has the beneficial effects that the fracture prevention transmission shaft assembly is reasonable in design and stable in structure, the situation that the petroleum mine drilling tool is fractured and then falls into a well during operation can be avoided, the safety coefficient is increased and the service life is prolonged.

The present invention provides a method for preventing delayed failure of a steel structure and a method for manufacturing the steel structure. A method for preventing delayed failure of a steel structure. The steel structure includes steel with a tensile strength greater than or equal to 600N / mm2 and / or welded joints of the steel. Ultrasonic impact treatment is performed on the surface of the stress concentration part of the steel structure. The ultrasonic impact treatment is impacted with an ultrasonic vibration terminal having a diameter of 1 to 5 mm at the front end.

The invention relates to a fracture toughness analysis method for pressure-bearing main equipment and chemical machinery pressure-bearing equipment of a nuclear power plant, in particular to a fracture toughness analysis method for the pressure-bearing equipment, belongs to the field of nuclear power and chemical machinery pressure bearing, and aims to solve the problem that no clear judgment and calculation method exists in an existing pressure vessel fracture prevention method. According to the method, a linear elastic fracture mechanics theory is adopted, that is, the numerical value and distribution of a stress field near the crack tip of a linear elastomer with cracks are associated with the crack size which may cause non-ductile failure; and the numerical relationship among the fracture toughness, the crack defect size and the stress level of the material during crack propagation is referred to. According to the method, the load at each moment can be analyzed and judged, the calculation accuracy is improved, corresponding calculation software is developed, and the economy and the calculation efficiency are improved.

The invention relates to fish bone scale collagen peptide for preventing and curing egg and poultry fracture, which comprises the following components in parts by weight: 10 to 300 of fish bone scale collagen peptide, 300 to 1000 of ginseng polysaccharide, and 1.5 to 30 of silymarin. The fish bone scale collagen peptide for preventing and curing egg and poultry fracture has the advantages of easyabsorption, good calcium supplementation effect and egg and poultry fracture prevention and curing effect.

The invention discloses a steel beam fracture-prevention bracket, which comprises a bracket body, wherein the two sides of the bracket body are provided with installing protection plates, positioning installing holes are formed in the installing protection plates, the center of the bracket body is provided with a conical groove, the bottom of the conical groove is provided with a pressure triggering pad, weight reducing type observation open holes are also formed in the end surfaces of the two sides of the bracket body, and the weight-reducing type observation open holes are formed in a way of transversely penetrating through the bracket body. Through adopting the mode, the safe and stable protection can be provided for a steel beam, the alarm can be timely given out after the steel beam fractures and touches the pressure triggering pad, in addition, the observation hole holes are provided, the use condition of the steel beam can be conveniently observed in real time, and the potential safety hazards are eliminated.

The invention discloses a lead plate fracture prevention separating block and a fixed installation method thereof and not only provides the separating block but also provides a connection method of the separating block in the using process. A battery produced according to the provided technical scheme can effectively inhibit the situation that a lead block fractures due to vibration inside a battery box. The separating block is simple in structure and reasonable in design, can effectively offset shear stress generated in the force bearing process of lead plates inside the battery and a batteryshell and can effectively avoid lead plate fracture. The provided method is simple, easy to understand and convenient to operate. The lead plate fracture prevention separating block and the fixed installation method thereof are widely applicable to the battery production and processing industry and relevant industries.

The invention relates to the technical field of bandage manufacturing, and provides bandage winding equipment capable of achieving fracture prevention through meshing teeth. The bandage winding equipment comprises a bandage winding equipment body, regulation and control frameworks and an equidistant framework, a winding frame is movably connected to the center of the bandage winding equipment body, the regulation and control frameworks are movably connected to the upper side and the lower side of the bandage winding equipment body through the winding frame, the centers of the regulation and control frameworks are movably connected with rotating rods, the inner sides of the regulation and control frameworks are movably connected with torque spring rods through the rotating rods, and the inner sides of the regulation and control frameworks are movably connected with movable rotating wheels through the rotating rods. According to the bandage winding equipment capable of achieving fracture prevention through the meshing teeth, after an extrusion frame is connected with a connecting socket, a spring rod drives an extrusion wedging rod to be connected with the two sides of the equidistant framework, a circuit is in a closed state through a telegraph pole, the spring rods drive the rotating rods to move downwards, the rotating rods drive the movable rotating wheels to rotate through sliding friction force, and the torque spring rods limit the rotating angles of the rotating rods.

The invention relates to fish bone scale collagen peptide for preventing and curing egg and poultry fracture, which comprises the following components in parts by weight: 10 to 300 of fish bone scale collagen peptide, 300 to 1000 of ginseng polysaccharide, and 1.5 to 30 of silymarin. The fish bone scale collagen peptide for preventing and curing egg and poultry fracture has the advantages of easy absorption, good calcium supplementation effect and egg and poultry fracture prevention and curing effect.

The invention discloses a silicon steel sheet for a transformer, comprising a plurality of superimposed silicon steel sheet bodies and fixing bolts, and is characterized in that: the silicon steel sheet body is provided with a positioning groove and a plurality of fixing through holes, and the positioning groove There is a strip-shaped shock-absorbing pad, a ring-shaped shock pad is arranged on the side wall of the fixing through hole, and the fixing bolts connect the silicon steel sheet bodies together through the corresponding fixing through-holes. The invention has novel structure, shock absorption design, good anti-break effect and strong practicability.

The invention discloses a fracture prevention and heat preservation wall structure. The fracture prevention and heat preservation wall structure comprises a base wall and further comprises gridding cloth, an interface mortar layer, a heat preservation mortar layer and a fracture prevention mortar layer are arranged between one face of the gridding cloth and the base wall in sequence, and the other face of the gridding cloth is provided with an inorganic outer wall coating. Due to the fact that the interface mortar layer, the heat preservation mortar layer and the fracture prevention mortar layer are arranged between the base wall and the gridding cloth in sequence, and the other face of the gridding cloth is provided with the inorganic outer wall coating, the fracture prevention capability of the overall wall is greatly improved, and the wall structure has the effects that the fracture is prevented, adhering is firm, the structure is durable, the temperature is preserved, and energy is saved.