INDUCTION COIL, APPARATUS AND METHOD FOR ELIMINATING ENGINE VALVE RESIDUAL STRESS

An induction coil (6) for eliminating residual stress of an engine valve is disclosed. The induction coil (6) is V-shaped, U-shaped or wave-shaped. The apparatus for eliminating residual stress of an engine valve comprises a frame, a worktable, a heating device and a fixture. The worktable comprises...

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Bibliographische Detailangaben
Hauptverfasser:	HUANG, Zhigang, LU, Qitang, DENG, Jishao, WANG, Feihua, MO, Dongqiang, GUO, Chao, DENG, Jianxiong, LIAN, Shaoling, ZHAO, Weiming, HUANG, Lixun, LI, Zhiyan, CHEN, Yongxing, LI, Dongping
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	An induction coil (6) for eliminating residual stress of an engine valve is disclosed. The induction coil (6) is V-shaped, U-shaped or wave-shaped. The apparatus for eliminating residual stress of an engine valve comprises a frame, a worktable, a heating device and a fixture. The worktable comprises a fixed worktable (1) and a movable worktable (2). The fixed worktable (1) is fixed on the frame, and the movable worktable (2) is mounted on the frame via a feeding device, a feature thereof being that the heating device is mounted on the fixed worktable (1) and comprises an induction heating power supply (4) and the induction coil (6). The induction coil (6) is mounted at an output end of the induction heating power source (4) and is located at the front of a fixing tool of the fixture. The fixture is used to clamp the engine valve and is located on the movable worktable (2) near the induction coil (6). The apparatus has the advantages of uniform heating, a low stress relief temperature, stable elimination of va