Reciprocating air compressor W series oil-free lubrication assembly structure and working principle Reciprocating air compressor W series oil-free lubrication assembly consists of packing assembly and piston assembly, including: 1) fuselage; 2) piston rod; 3) cylinder Base; 4) stuffing box; 5) piston ring; 6) piston body; 7) cylinder block; 8) cylinder head; 9) nut packing assembly set off oil) oil retaining, oil blocking) scraping oil, choke) The guide is integrated into one, and the principle is as follows: (1) The oil cut-off mechanism is formed by the oil-breaking ring and the oil-breaking ring box to prevent the oil in the fuselage from entering the cylinder. (2) The oil scraping mechanism is composed of the oil scraping ring and the packing box, so that the oil of the piston rod can be completely removed without entering the cylinder. (3) The choke seal mechanism is formed by the choke ring, the packing box and the sealing ring in the packing box, thereby achieving the purpose of sealing and preventing the air leakage. (4) The front and rear guide sleeves and the choke ring form a guiding and supporting mechanism with a length of about 100 mm, which has good guiding performance and just the right supporting ability. The piston assembly is mainly composed of a piston rod, a piston body, a piston ring, etc. The principle is mainly to utilize the gas inflation compensation technology, that is, the piston ring and the piston body blow the piston ring during the movement, and the piston and the piston ring groove A gas ring is formed inside, and the piston body is floated in the center of the cylinder under the action of the pressure gas, so that the piston body does not contact the cylinder block, and the piston and the piston rod are all changed to aluminum alloy (the weight is reduced by about 2/3) And still use two piston rings, the piston ring uses a composite material which is both wear-resistant and has a small friction coefficient, and the width thereof is correspondingly narrowed, so as to reduce the contact area between the piston ring and the inner wall of the cylinder as much as possible, thereby greatly reducing The frictional resistance of the piston ring running in the cylinder is very beneficial to reduce the working temperature of the machine, which is enough to ensure that the piston does not have a fever when the cylinder is running, and does not produce the phenomenon of pulling the cylinder or burning the cylinder. Tungsten carbide mixed Metal Alloy Powder is commonly used in PTA (Plasma Transferred Arc) welding. PTA welding is a process that involves the deposition of a hardfacing material onto a base metal to provide wear resistance, corrosion resistance, and improved mechanical properties. Mixed Powder,Arc Welding Powder,Pta Welding Powder,Plasma Welding Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.xtcthermalspray.com
Tungsten carbide is a very hard and wear-resistant material, making it ideal for applications where high abrasion resistance is required. It is often mixed with other metals, such as nickel, cobalt, or chromium, to form a metal alloy powder. These metal alloys enhance the properties of the tungsten carbide and improve its compatibility with the base metal.
The tungsten carbide mix metal alloy powder is typically fed into the PTA welding torch, where it is melted and propelled onto the surface of the base metal using a high-energy plasma arc. The molten powder forms a hard, dense coating that bonds with the base metal, providing excellent wear resistance and protection.
The specific composition of the tungsten carbide mix metal alloy powder can vary depending on the application requirements. Different ratios of tungsten carbide and other metals can be used to achieve desired properties, such as hardness, toughness, and corrosion resistance.
Overall, tungsten carbide mix metal alloy powder is a versatile and effective material for PTA welding, offering superior wear resistance and protection for various industrial applications.