发明名称 |
WELDING DEVICE FOR METAL AND WELDING METHOD FOR METAL |
摘要 |
A welding equipment for metallic materials capable of performing heat treatment such as tempering based on partial heating in spot welding is provided. The welding equipment 1 sandwiches metallic materials 9 with a pair of electrodes 4, 4, and heats different regions of the metallic materials 9 by energization, with the pair of electrodes 4, 4 maintained at the same position with respect to the metallic materials 9. The welding equipment includess a first heating means 6 connected to the pair of electrodes 4, 4 for heating and welding the internal region of the circle defined by projecting the cross-sectional area of the axis of the electrodes on the metallic materials by applying power having a low first frequency, a second heating means 8 for heating a ring-shaped region along the circle by applying power having a second frequency that is higher than the first frequency, and an energization control unit 10 for independently controlling the first and the second heating means 6, 8. |
申请公布号 |
EP2351628(A1) |
申请公布日期 |
2011.08.03 |
申请号 |
EP20090817811 |
申请日期 |
2009.09.30 |
申请人 |
NETUREN CO., LTD.;NATIONAL INSTITUTE FOR MATERIALS SCIENCE |
发明人 |
KANAI, TAKAHIKO;HATTA, MUNEHISA;IKUTA, FUMIAKI;KAWASAKI, KAZUHIRO;NAKANISHI, EIZABURO;YOSHIDA, TSUYOSHI;NAGAI, KOTOBU;HAYAKAWA, MASAO;ITAGAKI, TAKEHIKO |
分类号 |
B23K11/11;B23K11/24;B23K11/26;B23K11/31;B23K13/08;B23K101/18;B23K103/04 |
主分类号 |
B23K11/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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