The Trial Of Hydraulic Cylinders With HFW Pipe

In China, the former due to the pipe weld quality is not stable enough, in the processing and use are often found along the weld cracking, commonly used as a small-sized seamless steel pipe for hydraulic cylinder blank. With the development of technology, pipe, pipe quality has been greatly improved. HFW pipe using technology to produce the pipe, can eliminate incomplete fusion, incomplete penetration, heat treatment can improve the impact strength of the weld zone, to obtain uniform organizational structure, reducing the chance of cracking pipe. To play a high geometric accuracy HFW pipe with wall thickness uniformity, excellent performance and processing advantages of low cost, prototype research hydraulic cylinder with HFW pipe, replace part of the seamless, with good marketing prospects. Heat treatment process parameter control issues paper focuses on the hydraulic cylinder choose HFW pipe materials, welding and extrusion pressure after welding. For existing production lines, the study identifies the extrusion pressure welding and weld heat treatment after the online control parameters. By optimizing process parameters pipe, trial out of a small-sized hydraulic cylinders with steel billets.