Steel cylinders are containers that store various gases under pressure. They are widely used in industrial, medical, and household applications. Depending on the size and purpose of the cylinder, different manufacturing methods are used.
Welded steel cylinders
Welded steel cylinders are made by welding a straight steel pipe with two hemispherical heads at the top and bottom. The welding seam is then quenched by a lathe to harden the metal. This process is relatively simple and lowcost, but it also has some drawbacks. The welding seam changes the chemical properties of the steel, making it more susceptible to corrosion by acidic substances. The welding seam also reduces the strength and durability of the cylinder, making it prone to cracking or bursting under high temperature or pressure. Therefore, welded steel cylinders are usually used for small disposable cylinders that store low-pressure, low-temperature, or non-corrosive gases, such as carbon dioxide, nitrogen, or helium.
Seamless steel cylinders
Seamless steel cylinders are made by a one-time forming spinning process. A steel pipe is heated and then spun on a spinning machine to form the cylinder shape. This process is more complex and expensive, but it also has some advantages. The seamless cylinder has no welding seam, so it has higher technical content and quality. The seamless cylinder can withstand higher internal pressure and external force, and it is not easy to explode or leak. Therefore, seamless steel cylinders are usually used for large cylinders that store high-pressure, high-temperature, or corrosive gases, such as liquefied gas, acetylene, or oxygen.
Post time: Aug-07-2023