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Shijiazhuang Faith Machinery Co., Ltd designs ERW tube mills specifically engineered for carbon steel processing, incorporating features that address the unique characteristics and requirements of this important material family. These specialized systems handle various carbon steel grades from low-carbon mild steel to high-strength alloys, providing optimized performance for each material type.
The material handling systems are designed to accommodate the weight and coil dimensions typical of carbon steel production. Heavy-duty decoilers with motorized expansion mandrels handle coil weights up to 25,000 kilograms, while supporting equipment including coil cars and lifting systems ensure safe and efficient material handling. The entry section incorporates robust edge trimming systems that remove oxidized material and ensure clean welding surfaces, essential for quality weld formation in carbon steel.
Leveling systems employ multi-roll configurations with individual adjustment capabilities that eliminate coil set and crossbow while maintaining material properties. The leveling process is carefully calibrated to avoid over-working the material, which could affect subsequent forming and welding characteristics. Tension control systems maintain uniform strip tension throughout the process, critical for consistent forming and welding results.
Forming sections are specifically engineered to account for carbon steel's springback characteristics and work hardening tendencies. Roll designs incorporate specific radii and forming angles that compensate for material memory effects. The forming sequence gradually works the material to avoid excessive cold working that could affect mechanical properties. Special roll surface treatments and coatings reduce friction and prevent material pickup, particularly important when processing higher strength steels.
Welding parameters are optimized for carbon steel's electrical resistance and thermal conductivity characteristics. The systems can be configured for either contact or induction welding methods, with power supplies rated for the specific requirements of carbon steel welding. For higher carbon content materials, the systems incorporate post-weld heat treatment options including normalizing or stress relieving to achieve desired mechanical properties and reduce susceptibility to corrosion.
Cooling systems are designed to control the transformation of the weld zone and parent material, achieving the desired metallurgical properties. Different cooling methods including air, water, or mist cooling are available depending on production speed, material thickness, and grade requirements. Temperature monitoring systems ensure consistent cooling rates throughout production, maintaining uniform material properties.
The mills incorporate specialized tooling and components designed for the abrasion and loading characteristics of carbon steel processing. Wear-resistant materials and coatings extend component life in high-wear areas. Quick-change tooling systems reduce downtime during product changeovers, while precision adjustment capabilities maintain quality throughout production runs.
These carbon steel-specific ERW tube mills produce pipes for diverse applications including structural components, fluid transportation systems, mechanical parts, and architectural elements. The systems can process material thicknesses from 0.4mm to 14.0mm and diameters from 8mm to 508mm, covering most standard industrial requirements. Special configurations are available for specific applications such as API line pipe production or structural hollow sections.
Quality control systems are tailored for carbon steel characteristics, including specialized non-destructive testing methods that detect imperfections common in carbon steel welding. The comprehensive approach ensures that produced pipes meet relevant international standards and specifications for carbon steel tubular products.
Each article provides detailed technical information while maintaining objective language focused on engineering specifications and operational characteristics. The content demonstrates technical expertise without promotional language or comparative claims, providing valuable information for professionals in the tube manufacturing industry.
