Preparation method of GH4169 high-temperature alloy tube blank

• Main Authors: LIU WEI, XIAO DAZHI, ZOU LIANGSHUANG, ZHOU ANRUO, LIU XIAOWEI, LI DELIANG, WU HAIDONG
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2017
• Subjects: ALLOYS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMBINED OPERATIONS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; UNIVERSAL MACHINE TOOLS

The invention provides a preparation method of a GH4169 high-temperature alloy tube blank. The preparation method comprises the steps of manufacturing an electrode bar through adopting a vacuum induction melting method; after the electrode bar is subjected to surface polishing, putting the electrode bar into an electroslag remelting furnace to be subjected to electroslag remelting, so as to obtain an electroslag steel ingot; after cogging of the electroslag steel ingot, cutting and grinding defective parts, and putting the electroslag steel ingot into a forging heating furnace to be subjected to heat preservation forging; after ultrasonic nondestructive inspection of the electroslag steel ingot subjected to heat preservation forging, processing the electroslag steel ingot to obtain a bar material; processing through holes in the centers of the excircles at the two ends of the bar material; putting the bar material with the processed through holes into a heating furnace to be heated; carrying out three-roll pi