Steps for cooling down pipe bends and methods to prevent damage during transportation
In the realm of pipe bending, a myriad of processes is employed to elevate the quality of pipe components, making them suitable for a wide range of applications. Moreover, while maintaining their existing capabilities, further enhancements are feasible. Let’s delve into the specific steps involved in the heat treatment of pipe bends, with the hope of shedding light on these procedures.
Rough Surface Preparation and Hot Rolling: The process commences with preparing the pipe bend, ensuring it has a rough, non-reflective surface. Subsequently, it undergoes hot rolling until it reaches the specified thickness. This is followed by annealing and scale removal.
Heat Treatment Post Cold Rolling: After cold rolling, pipe bends are subjected to heat treatment, acid cleaning, or similar processes to refine their properties.
Grinding Stages: The pipe bends undergo a series of grinding stages, starting with rough grinding and proceeding to intermediate grinding.
Polishing: Following the grinding stages, pipe bends are polished, using designated abrasive materials for surface treatment.
Mirror Finish: For a mirror-like surface, the bends undergo further grinding with polishing wheels to achieve the desired mirror finish.
Bright Heat Treatment after Cold Rolling: In certain cases, pipe bends undergo a bright heat treatment post cold rolling to enhance their performance.
Almost all pipe bends involve bending as a common operation. When heating is required during this process, high temperatures are involved. After the intermediate-frequency treatment, the temperature gradually decreases. The preceding paragraphs provide insights into the heat treatment steps involved in pipe bending. During the cooling process, a gradual and progressive approach is advisable.
Pipe bends are predominantly curved components, and their transportation requires careful handling to prevent damage during transit. Once the pipeline is damaged, its quality could be compromised. Therefore, it is crucial to take measures to prevent transportation-related damage. How can this be achieved? Let’s delve into it.
Protection of Threaded Ends: If the pipe bend has threaded ends, it should be safeguarded with thread protectors. Lubricating oil or rust inhibitors should be applied to the threads. For open ends, pipe-end protectors may be used as required. The packaging should prevent loosening and damage during normal handling, transportation, and storage.
Protection from Impact: If customers demand undamaged surfaces, protective devices can be employed between pipe bends. Due to the thin wall of the pipes, internal support or external frames made of materials consistent with the pipes may be utilized.
Appropriate Packaging Materials: Packaging materials should adhere to relevant regulations. Unnecessary waste and environmental pollution should be avoided if packaging materials are not needed. For loose shipment, bundles should be securely strapped with steel bands. Each layer should be at least double-stranded, with adjustments made based on outer diameter and weight to prevent slippage.
Moisture Protection: If placed inside containers, containers should be lined with soft moisture-resistant materials like textile fabric and straw mats. To prevent scattering inside the container, protective supports can be welded to the pipe bundles or the exterior of the pipe bends.
When loading pipe bends onto transport vehicles, gentle and careful handling is crucial. Specialized packaging should be used to protect the pipe during transportation. It is advisable not to stack too many pipes within the same transport vehicle to prevent friction between them.
Haihao Group is committed to high-quality manufacturing and services in the pipeline field. We combine our rich experience with advanced technology to provide customers with excellent products and solutions. Whether it is the production process or safe transportation of pipeline pipes, we will always adhere to the highest standards to ensure that customers receive the highest quality products. Choose Haihao Group, choose quality and reliability.