Release time：2023-11-12 15:28:08 Hits： Current position: Home > News
This article mainly introduces:
Britain hydraulic cylinder,stroke adjustable cylinder manufacturer,stroke adjustable cylinder
(Britain stroke adjustable cylinder,produced by Hengyu Hydraulic Co., Ltd）
stroke adjustable cylinder are widely used in Britain，because of smooth movement，no need for deceleration device，long service life.So our company has designed stroke adjustable cylinder for customers from Britain.
The pressure, temperature, medium and speed of different types of seals are not the same, water-ethylene glycol medium (HFC) can not be sealed with polyurethane, it can only use rubber seal; When the stroke adjustable cylinder is running fast, it must be sealed with slip ring, such as Sterseal, Glairing, GD1000K, TDI, etc., when the running speed is slow, Yx, U, V combination seals can be used; Fluorine rubber seal is used in high temperature and high pressure environment; When the running speed is fast, the buffer sleeve and buffer valve must be considered.
In recent years, the processing process of the stroke adjustable cylinder generally adopts the rolling method, which is a pressure finishing processing, which uses the cold plastic characteristics of the metal at room temperature, and uses the rolling tool to exert a certain pressure on the surface of the workpiece, so that the surface metal of the workpiece produces plastic flow, and fills in the low concave trough of the original residue, and the roughness value of the workpiece surface is reduced. Due to the plastic deformation of the rolled surface metal, the surface tissue is cold hardened and the grain is fine, forming a dense fiber, and forming a residual stress layer, and the hardness and strength are increased, thus improving the wear resistance, corrosion resistance and compatibility of the workpiece surface. Rolling is a plastic machining method without cutting.
stroke adjustable cylinder and hydraulic station selection: Select the type and structure of the stroke adjustable cylinder according to the operation requirements of the main engine. According to the external load force borne by the stroke adjustable cylinder, such as gravity, friction force of the external mechanism, inertia force and working load, determine the load change law of the stroke adjustable cylinder in each stage of the stroke and the power value that must be provided. Determine the diameter of the piston and piston rod according to the working load of the stroke adjustable cylinder and the selected oil working pressure. the flow rate of the hydraulic pump is determined according to the movement speed of the stroke adjustable cylinder, the diameter of the piston and the piston rod.
The internal leakage of the stroke adjustable cylinder should be prevented when the stroke adjustable cylinder is used. The internal leakage of stroke adjustable cylinder includes the leakage caused by excessive wear of stroke adjustable cylinder block seal, piston rod and seal cover seal and piston seal. The cause of sealing leakage between the piston rod and the seal cover is that the seal is wrinkled, squeezed, torn, worn, aging, deterioration, deformation, etc., and a new seal should be replaced at this time.
What valve is used to control the speed of the cylinder?
Hydraulic cylinder for lifting is generally the piston rod downward installation, to achieve the fast and slow speed of the cylinder, you can add a two-digit three-way electromagnetic reversing valve + a throttle valve on a branch at the bottom of the cylinder, you can achieve speed change, control mode can be controlled by time control can also be controlled by stroke switch. If you want to achieve more accurate control can use proportional valve control.
What adhesive should be used when the cylinder is cracked?
There is a kind of cast iron glue, industrial products market can buy, A, B formula, that is, a tube is A, a tube is B, when used proportionally prepared, check the instructions. Polish the glue after it dries, and then grind it again.
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