steel
High quality carbon steel: This is one of the most commonly used materials for pressure rods. High quality carbon steel has good strength, toughness and corrosion resistance, and can withstand greater pressure without deformation or rupture. Through precise processing technology, it can be made into a pressure rod tube wall with uniform thickness and high dimensional accuracy, ensuring that the pressure rod can maintain stable performance under different pressures and use environments. For example, some high-end office chair pressure bar will use carbon content of 0.3-0.6% medium carbon steel, after quenching, tempering and other heat treatment process, its comprehensive mechanical properties have been significantly improved, can effectively extend the service life of the pressure bar.
Stainless steel: Stainless steel pressure bar has excellent corrosion resistance and oxidation resistance, especially suitable for wet or corrosive environments. Its high content of chromium, nickel and other alloying elements can form a dense passivation film on the surface of the pressure rod to prevent the erosion of external substances. Common 304 stainless steel and 316 stainless steel are commonly used stainless steel models, 316 stainless steel due to the addition of molybdenum element, its corrosion resistance is better than 304 stainless steel, often used for extremely high corrosion resistance occasions.
Aluminium alloy
High strength aluminum alloy: Aluminum alloy material pressure bar has the characteristics of light weight and high strength. Some high-strength aluminum alloys, such as 6061 aluminum alloy and 7075 aluminum alloy, after special heat treatment and cold working process, its strength can be comparable to ordinary steel, while also having good thermal conductivity and fatigue resistance. The aluminum alloy pressure bar can not only reduce the overall weight of the office chair, easy to move and use, but also add a fashionable and beautiful appearance to the office chair under the premise of ensuring safety performance.
Engineering plastics
High performance engineering plastics: Some pressure rods will use high performance engineering plastics as auxiliary materials or housing. For example, engineering plastics such as polyformaldehyde (POM) and polycarbonate (PC) have good mechanical properties, wear resistance and self-lubrication. They can be used as a sealing part or protective shell of the pressure bar, combined with the metal pressure bar body, to play a better sealing, shock absorption and protection role, but also reduce costs, improve the overall performance of the pressure bar.
Post time: Feb-06-2025