The Production Process of Stainless Steel Pipes in Our Factory: Stainless steel pipes are manufactured through a detailed and precise process that ensures high quality and durability. The main stages include rolling and welding, cleaning and heating, cold drawing, and finishing. Each step is carefully controlled to meet industry standards and customer requirements. Rolling and Welding Cleaning and Heating Phase Cold Drawing Process Finishing Process Stainless steel pipes produced in our factory are used across various industries, including construction, automotive, chemical, and food processing. The entire manufacturing process involves multiple stages that require strict attention to detail, precision, and quality control to deliver reliable and high-performance products that meet global standards. Chongqing Zhongheng Chuangxin Auto Parts Co., Ltd , https://www.zhcx-autoparts.com
Before the production begins, the stainless steel strip undergoes thorough quality checks and trimming. Once it passes inspection, the strip is sent to the pipe factory where it goes through a series of rollers to shape it into the desired dimensions. As the strip moves through the tube mill, it gradually takes on a tubular form. The edges of the strip are then welded together using TIG (Tungsten Inert Gas) welding, which ensures a strong and clean joint. Any excess material or internal weld beads are removed immediately with a Tibo machine, resulting in a smooth and uniform rolled tubing.
After the initial forming, the stainless steel tubes are cut to the required lengths based on industrial specifications. They are then cleaned thoroughly to remove any dirt, oils, or contaminants that may have accumulated during the manufacturing process. Following cleaning, the tubes go through a heat treatment process in a continuous rolling hearth furnace equipped with temperature controllers and recorders. This step helps relieve internal stresses caused by welding and shaping. After heat treatment, the tubes are straightened and pickled to eliminate surface scale and improve their overall appearance and performance.
If the final dimensions cannot be achieved directly from the rolling process, a cold drawing operation is performed. During this stage, a lubricant made from oxalic acid and soap is applied to the tube’s surface to reduce friction and prevent damage. A die plug is used to pull the tube through a die, allowing for precise size adjustments without altering the material’s structure. This method ensures dimensional accuracy and enhances the mechanical properties of the final product.
Once the cold drawing is complete, the pipes are cleaned again, heat treated, pickled, and straightened to ensure they meet all quality standards. Then, a computerized inkjet marking machine is used to label the finished products with essential information such as material grade, size, furnace number, and third-party inspection stamps. These marked pipes are then handed over to our stainless steel pipe exporter. Before packaging, each pipe undergoes rigorous testing and quality checks to ensure it meets the required specifications. The final products are then properly packaged and dispatched to customers worldwide.
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