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Cylinder
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The piston rod is the most important part of the cylinder. It is usually made of high carbon steel, with a hard chrome plating on the surface, or stainless steel to prevent corrosion and improve the wear resistance of the sealing ring. When the cylinder operates, it relies on the oil mist in the compressed air to lubricate the piston. There is also a small portion of lubricating oil in the cylinder. The cylinder is a cylindrical metal part that guides the piston in a linear reciprocating motion within the cylinder. Air is expanded in the engine cylinder to convert thermal energy into mechanical energy; gas is compressed by the piston in the compressor cylinder to increase pressure. The casing of turbines, rotary piston engines, etc., is commonly referred to as the "cylinder." Applications of rollers include printing (tension control), semiconductors (spot welding machines, chip grinding), automation control, robotics, etc. In pneumatic transmission, the pressure of compressed gas can be converted into mechanical energy by pneumatic actuators. There are two types of cylinders: reciprocating linear motion and reciprocating swinging. When the cylinder and the cylinder body are cast as a single piece, it is called a monolithic cylinder. When the cylinder and the cylinder body are cast separately, the single cylinder is referred to as a cylinder sleeve. A cylinder sleeve that directly contacts cooling water is called a wet cylinder sleeve, while one that does not directly contact cooling water is called a dry cylinder sleeve.
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Unlike non-standard oil cylinders, a cylinder is a track for piston movement. Gas burns and expands within it. Some residual heat from the gas can be dissipated through the cylinder wall to maintain the operating temperature of the engine. The types of cylinders are integrated and single-cast. Single castings are divided into dry and wet types. The piston rod is the most important load-bearing component in the cylinder. High carbon steel, hard chrome plating, or stainless steel is typically used to prevent corrosion and enhance the wear resistance of the sealing rings. When the cylinder operates, it must be lubricated with an oil mist from compressed air. There are also a small number of non-lubricated cylinders. The sealing of rotating or reciprocating parts of the cylinder is called dynamic sealing, while the sealing of static parts is called static sealing. The connection methods between the cylinder barrel and the end cap are as follows: integral, riveted, threaded, flanged, and tie rod. In addition to the static loads such as the pressure difference inside and outside the cylinder and the weight of various components, the cylinder also bears the reaction force from steam flowing out of the static blades and the forces exerted on the cylinder by various connecting pipes under hot and cold conditions. Under the influence of these forces, the cylinder is prone to plastic deformation and leakage.
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Unlike non-standard oil cylinders, when the cylinder and cylinder body are cast as a whole, they are referred to as a monolithic cylinder. When the cylinder and cylinder body are cast separately, a single cylinder is called a cylinder sleeve. The cylinder sleeve is in direct contact with the cooling water, known as a wet cylinder sleeve, while a dry cylinder sleeve does not come into direct contact with the cooling water. To maintain a tight contact between the cylinder and the piston and to reduce friction loss during the piston’s movement, the inner wall of the cylinder should have high machining precision and accurate dimensional shape. The piston is the pressurized component within the cylinder. To prevent the left and right chambers of the piston from intermingling, a piston sealing ring is provided. The wear-resistant ring on the piston can improve the cylinder's directionality, reduce wear on the piston sealing ring, and lower friction resistance. The wear-resistant ring is made from polyurethane, polytetrafluoroethylene, and fabric-reinforced resin. The width of the piston is determined by the size of the sealing ring and the required length of the sliding components. If the sliding components are too short, it can lead to premature wear and jamming. Pistons are typically made from aluminum alloy and cast iron, while pistons for small cylinders are made from brass.
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Tel: +86-0510-83050688
Tel: +86-0510-83959581
E-mail: sales@shenlu.net.cn
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