How to build slope protection bricks:
1. First, excavate the foundation pit along the foundation pit, fill and compact the bottom surface with materials, and level the top plate elevation with the river slope protection brick;
2. The surface shall be paved with geotextile or crushed stone;
3. Three rows of interlocking revetment bricks are interlocked from the lower edge, and the length direction of the bricks should be opposite to the water flow;
4. The masonry of the lower toe wall can meet the design requirements only if it is anchored in the toe wall with concrete or interlocking bricks;
5. The riverway revetment bricks shall be laid from the lower left corner in a direction parallel to the toe wall and not perpendicular to the toe wall, so as to avoid errors affecting the quality.
The cement trench cover is made by adding steel drill rods in the required proportion to the cement and pressing the well cover mold, which is more compressive than the iron well cover, and will not reduce the service life due to the erosion of rain and other things.
Application fields of trench cover plate:
1. Power: due to its performance, extruded profiles are widely used as insulation supporting members, high-voltage cable bridges, antenna posts, high-voltage current operating poles;
2. Transportation: It can be used as layering, corner board in trains and cars, as well as highway guardrail, sound absorption board and chord guard board;
3. Petrochemical industry: due to the excellent corrosion resistance of FRP, it is widely used in petroleum, water conservancy, textile printing and dyeing, food processing, electronic industry, sewage treatment, shipbuilding, civil construction, electric power substation of electric power engineering, chemical industry, as well as sub stairs, handrails, operating platforms, walkways, drainage systems, seabed signs, oil well sucker rods, and various anti-corrosion supports.
What is the function of the cartridge valve control cover plate in the hydraulic press:
1. The control cover plate is used as the pilot part of the cartridge valve to install each channel of the valve;
2. Some control orifices or plugs are machined inside to adjust the direction of the cartridge oil for continuity
3. Some small surfaces are installed on the access block, and the bottom surface is generally equipped with the Ap (or Ax, Ac) of the control cavity. The source of the control pressure oil of the oil port 22 can come from A or B, and I can also come from other oil circuits of the hydraulic systems (system), called "internal control" or "external control" respectively;
4. The upper end face of the control cover plate can be fully enclosed, or a small magnet valve can be installed as a pilot valve, and the corresponding oil port is matched with the solenoid valve. In addition, the upper end face of the control cover plate can be installed with a valve core (attached to the valve body) lift adjusting screw for flow regulation (unit: cubic meters per second) to limit and adjust the opening of the cartridge valve core, so as to achieve alignment Quantity control. The stroke of the sheet metal bending machine shall be adjusted. Pay attention to the stroke adjustment when using the bending machine, and the test run must be carried out when bending. There is a gap of plate thickness when the upper die of the bending machine descends to the bottom. Otherwise, the mold and machine will be damaged. The adjustment of stroke also includes electric quick adjustment and manual fine adjustment. In the production of hydraulic press, the stamping process has the advantages of saving materials and energy compared with traditional mechanical processing, low technical requirements for operators, and being able to make products that cannot be achieved by mechanical processing through various mold applications. Therefore, its use is more and more extensive.
The control cover plate adopts all steel welding structure, which is simple in structure, easy to operate, beautiful in appearance and low in energy consumption. It is widely used in metallurgy, light industry, machinery, hardware, motors, electrical appliances, automobile maintenance, hardware manufacturing and other sheet metal processing industries. Control covers are generally divided into direction, pressure and flow (unit: cubic meters per second) control covers, as well as control covers for combination and functional composition.
With the development of the new era, the cable trough mold manufacturers should constantly inject new technology into their products, accumulate independent innovation, and develop more practical mold equipment so as to keep up with the development of the times and not be eliminated by the society. The production of enterprises should conform to the market development trend. Automation and intelligence are the inevitable direction of mold development. The new mould generally has the conditions of multi-function, simple adjustment and operation, and mechatronics is the new trend of mould controller.
