Induction hardening is a quenching method that uses coils to induce high frequency induction current. It rapidly heats up the surface of steel. After cooling with cooling water, 1 to 2 mm of the surface becomes hardened. Because the inside of the product stays soft, it is most suitable for products requiring wear resistance and toughness, such as gears, rails and drive shafts. Another advantage is that it can easily apply partial quenching. There are various shapes of coils to handle different shapes flexibly.
Characteristics of induction hardening
| ○ | Induction hardening is very quick (each coil heats up each part). |
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| ○ | Partial quenching is possible. |
| × | Not suitable for large products. |
| × | Not suitable for complicated shapes because the current applied will not be the same. |
Characteristics of our company
| ・ | We can easily adjust the depth of quenching using middle and low frequencies. |  |
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| ・ | We own more than 1,000 types of coils to handle a wide range of products, including large ones and ones with complicated shapes. | |
| ・ | Our originally designed equipment suppresses distortion during quenching and allows low distortion. | |
| ・ | At maximum, we can quench the center up to 10 m in length. |
Equipment
| ・ | High frequency induction heating device | 250KHZ | 150KW | 1 unit | ||
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| Spec 1: Horizontal quenching equipment with sliding function (quench both sides) 700 x 5,000 Spec 2: Horizontal shafts quenching equipment (manual) Ф10 to Ф50 x 5,500 |
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| ・ | High frequency induction heating device | 80KHZ | 150KW | 1 unit | ||
| Spec 1: Vertical quenching equipment Ф10 to Ф150 x 2,000 Spec 2: Vertical quenching equipment Ф10 to Ф50 x 600 |
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| ・ | High frequency induction heating device | 10KHZ | 250KW | 1 unit | ||
| Vertical quenching equipment Ф30 to Ф350 x 3,000 | ||||||
| ・ | High frequency induction heating device | 200KHZ | 60KW | 1 unit | ||
| Spec 1: Vertical quenching equipment Ф6 to Ф50 x 500 Spec 2: Horizontal shafts quenching equipment (full automatic)Ф6 to Ф30 x 1,000 |
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| ・ | High frequency induction heating device | 3KHZ | 200KW | 1 unit | Horizontal quenching equipment (full automatic) | Ф40～Ф200×10000 |
| ・ | High frequency induction heating device | 50KHZ | 150KW | 1 unit | Horizontal shafts quenching equipment (full automatic) | Ф15～Ф40×3000 |
| ・ | High frequency induction heating device | 400KHZ | 50KW | 1 unit | Horizontal quenching equipment (full automatic) | Ф3～Ф10×3000 |
| ・ | High frequency induction heating device | 200KHZ | 100KW | 1 unit | Horizontal quenching equipment (full automatic) | Ф10～Ф30×3500 |
| ・ | Electric furnace | 3KW | Ф300×300 | 1 unit | ||
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| ・ | Electric furnace | 40KW | 1000×600×1500 | 1 unit | ||
| ・ | Electric furnace | 70KW | 1100×800×2000 | 1 unit | ||
| ・ | Electric furnace | 60KW | 900×700×3500 | 1 unit | ||
| ・ | Electric furnace | 80KW | 500×650×6000 | 1 unit |