Personnel Training for Operating the Japanese-Model 89 Used High-Frequency Pipe Making Machine

Implementing a structured and comprehensive training program is essential for the safe, efficient, and productive operation of the Japanese-Model 89 used pipe mill. Given its status as a refurbished system with an imported core forming/welding/sizing machine and a U.S.-made high-frequency welder, training must encompass not only standard operational procedures but also foster a deep understanding of its specific mechanics, coordination between subsystems, and the heightened vigilance required for maintaining a pre-owned production asset.

1. Foundational Theoretical and System-Specific Training:
The training must begin with detailed classroom instruction covering the entire production workflow and the specific role of each component. Trainees require a clear understanding of the sequence: from the double-side uncoiler and horizontal accumulator (critical for continuous operation), through the imported main machine (6 horizontal/5 vertical forming stands, guiding/extruding unit, scraper, cooling tank, 3 horizontal/3 vertical sizing stands, Turk's head straightener), to the servo-controlled hot saw and run-out table. A dedicated module must explain the principles and precise operation of the 200KW solid-state high-frequency welder. Crucially, the training must cover the interaction between speed and capability, emphasizing the note that maximum speed (100 M/min) and maximum wall thickness (3.0mm) cannot be achieved simultaneously. Safety protocols, especially concerning the HF welder, moving machinery, and the hot saw, must be rigorously established from the outset.

2. Hands-On Practical and Operational Coordination Training:
Supervised, hands-on practice on the actual machine is indispensable. This phase should be segmented into competency-based modules:

• Pre-Operation Inspection and Setup: Trainees must master a detailed checklist tailored for this used pipe mill. This includes verifying the mechanical integrity of all roll stands (Φ58mm/Φ40mm shafts), checking the accumulator's function, inspecting the welder's contacts and cooling system, ensuring the hot saw blade and servo are calibrated, and confirming the correct mold setup for the target product size (round Φ38-95mm or square 30x30-75x75mm).

• Startup, Running, and Shutdown Sequences: Under close supervision, trainees practice the complete operational sequence. Key skills include managing the uncoiler and accumulator to maintain seamless material flow, establishing and monitoring a stable weld parameter, observing the multi-stage forming and sizing process, and operating the hot saw for precise length cuts. Emphasis must be placed on monitoring the entire line as an interconnected system.

• Tooling Changeover and Adjustment Procedures: Efficient procedures for changing rolls and adjusting stands for different pipe sizes and profiles must be practiced, always following strict Lockout-Tagout (LOTO) protocols. The specific setup of the guiding, extruding, and straightening units requires particular focus.

3. Troubleshooting, Quality Control, and Proactive Maintenance Awareness:
Operators should be trained to identify early signs of potential issues specific to a used pipe mill. This includes recognizing symptoms of wear in roll stands, misalignment in the forming line, irregularities in the weld seam, or inaccuracies from the sizing section or hot saw. Training should provide a logical troubleshooting framework. Furthermore, personnel must be instructed on performing routine preventative maintenance tasks and the critical importance of meticulous record-keeping. Logging operational parameters, maintenance actions, and any irregularities is vital for tracking the performance and planning the care of this valuable pre-owned asset, ensuring its long-term reliability and product quality.

In conclusion, a successful training program for this complex used pipe mill must balance in-depth system knowledge with extensive, supervised practical application, all within a robust safety culture. It should specifically equip operators with the skills to coordinate its various advanced subsystems effectively and the mindset to maintain and troubleshoot a refurbished industrial line, thereby ensuring operational excellence, product consistency, and a safe working environment.

For more information, please pay attention to the website of Jinyujie Mechanical and Electrical Used Pipe Mill Supplier：www.usedpipemill.com.