China Wuxi Chunfa Hydraulic Machinery Co., Ltd. Company Cases

Advantages and characteristics of cylinder pipes: smaller outer diameter than ordinary steel pipes, higher precision, superior performance, high precision of finished products, good surface quality of steel pipes, larger cross-sectional area of steel pipes, and can be produced in small batches. Compared with ordinary steel pipes, the biggest advantage of cold-drawn precision steel pipes is that they have no welding seams and can withstand greater pressure.   The so-called cylinder pipe is generally used in institutional structures and hydraulic equipment. It is a seamless steel pipe with high precision and good surface finish. When carrying out small and medium-sized construction projects, the use of mechanical structures or hydraulic equipment is essential, and cold-drawn precision steel pipes (cylinder pipes) can greatly reduce machining time, improve material utilization, reduce construction costs, and improve product quality.   Seamless steel pipes with smaller dimensional accuracy and better quality must use cold rolling, cold drawing or a combination of the two. Cold rolling usually rolls steel pipes in an annular pass composed of a circular cross-section groove and a fixed conical head. The cold-drawn steel pipe is carried out on a 0.5~100T single-chain or double-chain cold drawing machine.   The quilting pipe is processed by rolling. The stress left on the surface of the steel pipe has a good sealing effect on small cracks on the surface and can prevent the surface from being corroded. This improves the corrosion resistance of the surface and reduces the occurrence and expansion of cracks, thus enhancing the compressive strength of the quilted pipe. The roll-formed quilted pipe can form a cold work hardening layer on the surface, reducing the elastic and plastic deformation of the grinding pair's contact surface, thus improving the wear resistance and preventing burns caused by grinding. The surface roughness after rolling is greatly reduced, which improves the flexibility of the quilted tube.   The so-called rolling processing is a kind of chip-free processing, which uses the plastic deformation of metal at normal temperature to smooth the surface unevenness, thereby achieving the ultimate goal of changing the surface structure, mechanical properties, properties and dimensions. This kind of rolling processing technology cannot be achieved by grinding, and it also meets the requirements of finishing processing and strengthening.   The principle of rolling processing is to use the cold plasticity characteristics of metal at room temperature. The rolling tool is used to exert a certain pressure on the workpiece to cause plastic flow of the metal on the surface of the workpiece, thereby reducing the roughness of the surface of the workpiece. Due to the plastic deformation of the rolled surface metal, the surface tissue is cold-hardened and the grains are refined, forming a fine fiber shape, which increases the metal hardness and strength, and improves the wear resistance, corrosion resistance and conformability of the workpiece surface.   Implemented in accordance with GB/T8713-88 standards, production standards: ∮40~800mm, annual output 25,000 tons, 28,000 tons of high-precision cold drawn pipes and honed pipes within 14m in length, products are widely used in engineering machinery, metallurgical machinery, and plastic machinery , hoisting machinery, mining machinery, road construction machinery, textile machinery, glass machinery and many other industries. Products are sold at home and abroad.  

Hollow piston rod is a piston rod with a hollow structure. Compared with ordinary solid piston rods, it has obvious advantages in some specific application fields. This article will introduce in detail the material advantages, structural advantages, application fields, etc. The following is the detailed content about the advantages and application fields of hollow piston rods.   First of all, one of the main advantages of hollow piston rods is their high strength and stiffness. Due to most of the voids in the material, the mass of the entire piston rod is reduced, but the mechanical properties can still meet the same or higher strength requirements. This is because the hollow piston rod is made of alloy materials, such as steel, aluminum, nickel alloy, etc., which makes the hollow piston rod have stronger tensile strength and compressive strength. Compared with the solid piston rod, it has the same size and weight. Better performance under conditions.   In addition, hollow piston rods offer lower wear rates. Since the piston rod adopts a hollow structure, it can effectively reduce friction with the surrounding environment during movement, thereby reducing the wear of the piston rod. Compared with solid piston rods, under the same conditions of use, hollow piston rods have a longer service life, which can reduce the frequency of equipment maintenance and replacement and reduce usage costs.   In addition, the hollow piston rod also has better aerodynamic performance. Due to the structural characteristics of the hollow piston rod, air can pass through the piston rod more smoothly, thereby reducing gas resistance and improving the working efficiency of mechanical equipment. This is especially important in some high-speed moving equipment, such as aircraft engines, automobile engines, etc. The use of hollow piston rods can effectively reduce the resistance of air flow and improve the performance of mechanical equipment.   In addition to the advantages mentioned above, hollow piston rods also have better corrosion resistance. Due to the selection of the hollow piston rod material, it can operate normally in some harsh working environments without being corroded by corrosive substances in the environment. This is widely used in some fields such as chemical equipment, marine engineering, and seawater desalination equipment.   To sum up, the hollow piston rod has the advantages of high strength and stiffness, good thermal conductivity, low wear rate, good aerodynamic performance and good corrosion resistance. This makes hollow piston rods widely used in some specific application fields.   First of all, hollow piston rods have important applications in the field of internal combustion engines. The structural characteristics of the hollow piston rod enable it to better adapt to high-temperature and high-pressure working environments, thereby ensuring the normal operation of the internal combustion engine. For example, hollow piston rods are widely used in internal combustion engine equipment such as automobile engines, aircraft engines, and ship engines. The excellent performance of the hollow piston rod can improve the working efficiency of the internal combustion engine and reduce fuel consumption.   In addition, hollow piston rods are also widely used in some high-speed motion equipment. The aerodynamic performance of the hollow piston rod can reduce air resistance, thereby improving the movement efficiency of the equipment. For example, hollow piston rods are widely used in high-speed motion equipment such as aircraft engines and automobile engines, effectively improving the performance and efficiency of the equipment.   To sum up, the hollow piston rod has high strength and stiffness, good thermal conductivity, low wear rate, good aerodynamic performance and good corrosion resistance, making it an ideal choice for internal combustion engines, refrigeration devices, It is widely used in many fields such as high-speed motion equipment. In the future, with the continuous advancement of science and technology and the improvement of material technology, the application fields of hollow piston rods will be further expanded.