Elbow fittings are known for their excellent pressure resistance, thermal stability, flexibility, and heat resistance. Compared to other plastic pipes, they offer superior performance in terms of durability and reliability. These fittings are easy to install and provide good thermal conductivity, making them ideal for floor heating systems. Additionally, they are recyclable, which makes them an environmentally friendly choice. The high impact strength of elbow fittings allows for both hot melt welding and mechanical joining, surpassing the thermal conductivity of materials like PB-PP-R. Their long-term pressure resistance is exceptional, with the best pressure resistance performance when operating under design stress conditions. However, due to various factors, the actual wall thickness of floor heating pipes is typically around 2 mm. At this thickness, all types of pipes can meet the requirements for floor heating, and the pressure resistance of elbow pipe fittings may not be fully demonstrated. Still, when designed properly, elbow fittings remain the top choice for optimal pressure resistance. The material used in elbow fittings is unique, offering significant value in specific applications and influencing the development of related industries. For elbows made from seamless steel pipes below 24 inches, the production process is well-established. When the size exceeds 24 inches—approximately 600 mm or more—the maximum elbow length ranges between 2.032 m and 2.80 m, and these are typically manufactured from steel plates. The steel plate is cut into the required shape, formed using a UOE (United Oil Engineering) process, and then punched into a circular shape. The two halves are joined and welded together. After the forming process, the elbow is shaped while still hot to ensure structural integrity. Once the outer diameter and wall thickness meet the specifications, the finishing process begins. This includes shot peening to remove scale from the inner and outer surfaces, as well as groove preparation on both ends for easier welding. Following inspection, steel stamping, painting, and packaging, the elbow fittings are ready for shipment. The materials used in elbow fittings belong to a broad category of advanced materials that possess unique electrical, acoustic, thermal, mechanical, chemical, and biological properties. These materials play a crucial role in high-tech fields such as biotechnology, energy technology, and national defense. They also contribute significantly to traditional industries like agriculture, chemicals, and construction. In addition to the main manufacturing steps, there are two additional processes: flaw detection and heat treatment. While the rest of the procedures remain similar, these steps ensure quality and safety. There are numerous types of stamped elbow materials, each with wide-ranging applications. The industry has grown into a large-scale high-tech cluster with promising market potential and strategic importance. However, due to various factors, the actual wall thickness of floor heating pipes is often kept at 2 mm, meaning that under this condition, all pipe types can satisfy floor heating requirements. As a result, the pressure resistance of standard stamped elbows may not be fully visible. Thermal conductivity is essential for floor heating pipes, along with good low-temperature thermal shock and impact resistance. Improper handling of elbows can lead to distortion, which is unacceptable. After the head is pushed, the front end tends to have a larger outer diameter, requiring shaping through a die. Due to the presence of welds, non-destructive testing is necessary, and heat treatment is also performed to relieve welding stresses. Http://
A Hydraulic Tool is a type of tool that uses hydraulic power to perform various tasks. It operates by using fluid pressure to generate force and perform work. The hydraulic power is typically generated by a Hydraulic Pump, which pushes hydraulic fluid through a series of hoses and into the tool.
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