Internal-hole high-frequency quenching induction coil

Abstract

The invention relates to an internal-hole high-frequency quenching induction coil. The internal-hole high-frequency quenching induction coil is characterized in that the internal-hole high-frequency quenching induction coil comprises a cooling water pipe (1) and multiple magnetizer pieces (2); the cooling water pipe (1) comprises a C-shaped water pipe section (11) and two linear water pipe sections (12); the two linear water pipe sections (12) are located at the same side of the C-shaped water pipe section (11); the two linear water pipe sections (12) are vertically connected to two ends of the C-shaped water pipe section (11); a longitudinal section of each one of the multiple magnetizer pieces (2) has a C-shaped structure and the C-shaped structure comprises an upper horizontal section (21), a vertical section (22) and a lower horizontal section (23); an outer end of the lower horizontal section (23) is provided with a downward inclined plane and an inclination angle of the downward inclined plane is in a range of 40 to 45 degrees; a cross section of each one of the multiple magnetizer pieces (2) has a sector structure; the multiple magnetizer pieces (2) are sleeved on the C-shaped water pipe section (11); and openings of the C-shaped structures face outward. The internal-hole high-frequency quenching induction coil has the advantages that efficiency and quality of internal-hole high-frequency quenching are high.

Description

technical field [0001] The invention relates to an induction coil for inner hole high-frequency quenching treatment. Background technique [0002] The surface hardness of the inner hole of the part is required to be ≥ HRC58, the depth of the hardened layer is 1~2mm, the structure is uniform, and the two high-frequency quenchings cannot affect each other. The traditional induction coil for high-frequency quenching treatment of the inner hole includes a cooling water pipe and a plurality of magnetic conductive blocks sleeved on the cooling water pipe, see figure 1 and figure 2 , the longitudinal section of the magnetic conductive block is a C-shaped structure, the C-shaped structure includes an upper horizontal section, a vertical section and a lower horizontal section, and the upper horizontal section, vertical section and lower horizontal section are all rectangular, and the magnetic conductive block The cross section has a rectangular structure. The heating area of ​​th...

AI Technical Summary

Problems solved by technology

The heating area of ​​the magnetic conductor in the induction coil of the traditional inner hole high frequency quenching treatment is not concentrated, the heating efficiency is not high, and the heating range is wide, which leads to the low efficiency and poor quality of the inner hole high frequency quenching treatment

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