ONLINE WELDED PIPE SEAM ANNEALING M.F EQUIPMENT

Tube Seam Online Annealer

The welded seam reheating treatment of the straight seam pipe is an effective methods to improve the quality of the welding quality, and the welded seam is heated to more than 800 ° C, and then naturally cooled (annealed) or forced cooling (normalizing) with a fan, which can effectively improve the crystal micro-structure, eliminate harmful stress, and avoid the cracking of the welded seam during post-processing.

On-line welded seam heating equipment, which is generally fixed after the burr scraper of the welded pipe production line. Scrape the welded bar and then heat the welded seam. By using the residual temperature of the welded seam, the temperature of the welded seam can be raised to the required temperature efficiently and quickly.

The overall layout of the welded pipe production line with welded seam annealing equipment is as follows:

The complete set of equipment that constitutes welded seam annealing generally includes: annealing machine, medium frequency power supply, water cooler, and console.

Annealing machine: Suspend support inductor to ensure that the gap between the inductor and the welded seam is suitable and stable. It can move back and forth or up and down. There is also a burr detection and avoidance function to avoid damage to the inductor caused by unshaved burrs.

Medium frequency power supply: according to the wall thickness and speed of the steel pipe, different power and frequency are selected.

The medium frequency power supply can be thyristor medium frequency or IGBT medium frequency.

Power range: 1 OOKW~600KW. Generally, multiple units are used in series, and the frequency of each unit is

different, and the heating effect is better.

Advantages: stable equipment, energy saving, low failure rate.