Equipment for local heat treatment after repair welding of large parts of aero-engines
A technology of aero-engine and partial heat treatment, which is applied in heat treatment equipment, heat treatment furnace, heat treatment process control, etc., to achieve the effects of avoiding excessive deformation, eliminating thermal stress, and avoiding surface oxidation of parts
Active Publication Date: 2018-06-22
CHENGDU ENGINE GROUP
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Problems solved by technology
[0004] Aiming at the technical status and deficiencies of heat treatment after repair welding and repairing local defects of large-scale titanium alloy parts of aero-engines, the purpose of this invention is to provide a new equipment for local heat treatment after repairing and repairing welding of large-scale titanium alloy parts of aero-engines , to solve the problem of heat treatment after repair welding of local defects in large titanium alloy parts of aero-engines
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Embodiment 1
[0015] The repair welding heat treatment equipment for partial repair welding of large parts of aero-engine described in this embodiment is constituted as attached figure 1 And attached figure 2 As shown, it consists of a vacuum furnace 1, a vacuum pump 3 connected to the vacuum furnace through pipelines, and a control cabinet 7. The shell of the vacuum furnace is provided with an argon input connection 6 and an exhaust connection 2 connected to an argon source. The vacuum furnace is provided with a stage 4 for placing the parts to be heat treated 8, a heating belt 5 for heating the defective parts of the parts to be heat treated, and a spot welding for controlling the repair welding of the induction end connected to the parts to be heat treated The temperature control couple 13 of the temperature in the area 9 and the overtemperature alarm couple 12 for monitoring and preventing overheating, the load couple 15 for recording the temperature of the heating zone 10 and the moni...
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The invention discloses a device for local heat treatment after repair and welding of large-scale aero-engine parts. It includes a vacuum furnace, a vacuum pump group and a control cabinet connected to the vacuum furnace through pipelines. The shell of the vacuum furnace is provided with a The argon gas input pipe and the exhaust pipe are connected to the argon gas source. The vacuum furnace is equipped with a stage for placing the parts to be heat treated and a heating belt for heating the defective parts of the parts to be heat treated, as well as the induction end and the parts to be heat treated. The temperature control couple is used to control the temperature of the repair welding area, the over-temperature alarm couple is used to monitor and prevent over-temperature, the load couple is used to record the temperature of the heating area, and the monitoring couple is used to monitor the temperature of the external heating area. , a recorder connected to the output end of the monitoring couple and the temperature-control couple, an over-temperature alarm meter connected to the output end of the over-temperature alarm couple, and a controller connected in parallel to the recorder to the output end of the temperature-control couple, are installed on the control cabinet .
Description
technical field [0001] The invention relates to a repairing and remedial technology for local defects of large titanium alloy parts of aero-engines, and more specifically relates to a device for performing local heat treatment on repairing and welding areas of large-scale parts of aero-engines. Background technique [0002] The large parts of the aero-engine are all made of titanium alloy, which is machined from cast blanks. From time to time in the production practice of aero-engines, such a situation occurs that large-scale parts have been finished to the surface of the part with the size of the design drawing during the machining process, and local defects appear on the surface of the part. If the entire part is scrapped, it will Bringing hundreds of thousands to millions of economic losses, in order to save the loss, the usual practice is to repair the defective part, but repairing the defective part of the part will generate thermal stress in the repaired welding part a...
Claims
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IPC IPC(8): C21D9/50C21D1/773C21D11/00
CPCC21D1/773C21D9/50C21D11/00Y02P10/20
Inventor 罗毅乔雷罗啸姜涛王宁
Owner CHENGDU ENGINE GROUP