Square Tube Induction Hardening and Tempering Machine

This induction heating machine adopts electromagnetic induction eddy current heating principle. It quickly concentrates thermal energy on the target hardening area of the square tube. The heating temperature can be accurately controlled between 800℃ and 950℃ for quenching, followed by low and medium temperature tempering at 400℃ to 620℃. The whole heating process takes only a few seconds, which effectively avoids excessive oxidation, decarburization and thermal deformation of the pipe surface.

Structurally, the equipment is equipped with customized square induction coils, adaptive clamping positioning mechanism and circulating spray quenching system. The special-shaped coil perfectly fits the square tube surface to ensure uniform heating on four sides. The automatic feeding and rotating structure keeps consistent heating spacing, solving the problem of uneven hardness in traditional manual heating. The closed-loop water circulation circulating cooling system reduces water consumption and avoids environmental pollution.

In terms of performance advantages, this local quenching equipment features high heating efficiency and low energy consumption. Its power consumption is 30% lower than that of traditional resistance furnaces. The treated square tube obtains high surface hardness, strong wear resistance and stable toughness transition. The local hardened layer is uniform with controllable depth, and the tube body maintains excellent straightness without obvious bending deformation.