35results about How to "Easy to make and construct" patented technology

The invention discloses a polyimide-based self-lubricating abrasion-resistant coating material and a preparation method thereof. The coating material consists of the following raw materials in part by weight: 100 parts of polyimide bonded resin, 10 to 50 parts of irradiation polytetrafluoroethylene micro-powder solid lubricating agent and 200 to 400 parts of organic solvent. The preparation method comprises the following steps of: weighing and mixing the raw materials, and performing ultrasonic dispersion and magnetic stirring to form uniform resin solution; pouring the resin solution into a spray gun, and spraying the resin solution to the surface of a workpiece subjected to surface polishing and cleaning treatment under the pressure of 0.10 to 0.40Pa and under the action of oil-free compressed air, wherein the distance between the nozzle of the spray gun and the workpiece is not less than 20 centimeters, and the spray gun and the workpiece form an angle of 60 to 90 degrees; and putting the coated workpiece into a muffle furnace, performing section curing, cooling the workpiece to room temperature together with the furnace after curing, and thus obtaining the abrasion-resistant coating material on the surface of the workpiece. The coating material has the properties of low friction, high load resistance, abrasion resistance and high temperature resistance; and the preparationmethod is simple, easy in operation and low in cost.

The invention discloses a compact stay cable steel anchor beam and a construction method thereof. The steel anchor beam comprises a steel straining beam mechanism, beam end steel anchoring mechanisms and a stay cable anchor head bearing mechanism, wherein the steel straining beam mechanism, the beam end steel anchoring mechanisms and the stay cable anchor head bearing mechanism are matched to form the novel stay cable steel anchor beam. The construction method comprises the steps of (1), assembling the steel anchor beam; (2), hoisting the steel anchor beam; (3), after the steel anchor beam is hoisted to the position, relieving and removing hoisting equipment and installing the steel anchor beam; (4), binding steel bars of a tower column, installing templates and pouring the tower column. The steel anchor beam is simple and compact in structure, convenient to construct, low in construction cost, high in safety and long in service life. The construction method has the advantages that construction is convenient, the construction cost is low and the construction efficiency is high.

An assembled trolley for tunnel shield segment support and a method of using the same, comprising a movable chassis, a supporting arch, a hydraulic support system, a slide rail and a traction frame; the arches supporting the arch are arranged across the left and right On the two main beams, the hydraulic jacks of the hydraulic support system are arranged vertically on the outer surface of the arched frame, the bottom of which is fixedly connected to the arched frame through the mounting seat, and the top is provided with rubber gaskets in contact with the shield segment; At the bottom of the dome; a transport hook is arranged in the downwardly opening rail of the sliding rail; the traction frame is a horizontal frame beam fixed on one end of the movable chassis, and is connected with the traction equipment to drive the trolley to move. The invention is simple in structure and convenient in construction. The radially arranged jacks provide necessary support for the shield segment, the jacks can be freely replaced according to different pressures, and the support strength meets the design requirements; the traction device and the chassis are connected by cross pieces to avoid The main force-bearing components are locally deformed, and the components can be replaced at any time, with strong adaptability.

The multiple fire hole flame-free ceramic burners is used in flameless combustion industrial furnace and kiln, especially hot blast stove for iron making blast furnace. The multiple fire hole flame-free ceramic burner has two outer ring gas channels. After air through the air inlet and gas through the gas inlet enter the air preheating ring channel and the gas ring channel, gas and air are preheated in between two ring channels before jetting to the mixer for mixing and jetting through the combustion nozzle to combust. The gas ring channel has guide bricks for homogeneous distribution of gas. The present invention has unique structure, small size and great power, and is suitable for various kinds of hot blast stove with heat accumulator.

The invention discloses a combined bridge deck of arched corrugated steel plates and concrete, and the combined bridge deck comprises a bridge deck substrate consisting of a plurality of rows of arched corrugated steel plates arranged in parallel, a bridge deck bottom supporting structure for supporting and fixing the bridge deck substrate, and a concrete top layer formed on the bridge deck substrate in a pouring manner; the bridge deck bottom supporting structure is formed by assembling a plurality of beams which comprise a plurality of rows of lower vertical beams arranged in parallel and aplurality of lines of lower beams arranged in parallel; each row of arched corrugated steel plates are all fastened between two rows of lower vertical beams; arch springings on the left and right of the corrugated steel plates are fixedly arranged on the two adjacent rows of lower vertical beams respectively; the corrugation of each corrugated steel plate is in the transverse direction; and the rows of lower vertical beams and the rows of corrugated steel plates form a formed bottom template for pouring the formed concrete top layer. The combined bridge deck of arched corrugated steel plates and concrete is simple in structure, convenient to manufacture and construct and good in structural mechanical property, and can be used for effectively solving the problems existing in the existing bridge deck structure.

The invention discloses a combined long-span ribbed slab structure. The ribbed slab is formed by splitting steel form shells of different shapes; the frontages of the steel form shells of the different shapes are uniformly distributed with rivets (1), the sides of the steel form shells of the different shapes are connected through bolts, and the backs of the steel form shells of the different shapes are connected to form a slab plane through connecting plates (2) and bolts (3); a reinforced bar casting concrete layer (4) is paved on the plane of the slab and is closely connected with the plane of the slab to form the combined long-span ribbed slab through the uniformly distributed rivets (1). Compared with the prior art, the combined long-span ribbed slab structure provided by the invention has a few of combined components; furthermore, the combined long-span ribbed slab is processed in batches by a professional factory, good interchangeability and convenience in field splitting can be realized, the field labor capacity can be reduced, the construction period can be reduced significantly and the economic benefit can be improved; an existing wooden form can be substituted by the plane of the slab formed by splitting the steel form shells, therefore, the compressive property can be improved and the cost saving can be realized; in addition, lightening holes are formed in side plates, therefore materials can be saved and dead weight can be reduced.

A designing and manufacturing method for electrical harnesses of a rail vehicle. The main object thereof is to solve the existing problems and disadvantages in a designing and manufacturing process of electrical harnesses of a rail vehicle, and to provide a designing and manufacturing method suitable for electrical harnesses of a rail transport vehicle which can effectively standardize and improve the standard and quality of electrical circuit construction, and improve the efficiency of research and development and production by performing module division on electrical harnesses of a vehicle and respectively designing and manufacturing different harness modules according to basic information about the rail vehicle.

The invention discloses a trapezoidal power station for automatically rising still water and recycling water, relates to the field of power generation, and solves the problem of high cost. Water in a water reservoir or a river automatically flows into an upper water storage tank; the bottom of the upper water storage tank is connected with a direct-through pipe; the top end of the direct-through pipe is connected with a water plug and a nylon rope in a sleeving way; the other end of the nylon rope is fixedly connected with a buoy; the bottom of the upper water storage tank is connected with a water inlet pipeline; the other end of the water inlet pipeline is connected with a pressure pump; the maximum pressure is quickly generated for collision by utilizing the inertia of drop water flow in the upper water storage tank so as to achieve multiple water hammer effects to automatically extrude and rise the water with extremely high pressure to the lift height; two large row wheels and a center shaft are connected with a plurality of blades; the two ends of the center shaft are connected with bevel gears and then are meshed with horizontal axis bevel gears; the large row wheels rotate synchronously. Water flows down to the middle part of each layer of each trapezoidal large row wheel in sequence through a bell-mouthed funnel; the center shaft rotates to drive a multi-layer power generator group to generate power; the problem of energy crisis is solved effectively. The trapezoidal power station for automatically rising the still water and recycling the water is simple and practical in structure, and long in service life.