High-temperature solid solution process for 2A14 aluminum alloy ring piece

Abstract

The invention discloses a high-temperature solid solution process for a 2A14 aluminum alloy ring piece, and belongs to the technical field of heat treatment of aluminum alloy forge pieces. The invention provides the technical scheme that the high-temperature solid solution process for the 2A14 aluminum alloy ring piece is characterized by comprising the following steps of: S1, forging and ring-rolling an aluminum alloy blank to obtain a ring piece; S2, preparing for ring piece solid solution quenching: putting the ring piece into a solid solution furnace, and fixing four external thermocouples on the ring piece; S3, conducting solid solution quenching and real-time temperature control on the ring piece; S4, bulging of the ring piece; S5, conducting artificial aging of the ring part; S6, machining the ring piece; and S7, sampling and inspecting. The high-temperature solid solution process for the 2A14 aluminum alloy ring piece provided by the invention has the advantages that the solid solution effect of the 2A14 product is improved by adopting a high-temperature solid solution system and a process method for controlling the real-time temperature of the product by using the external thermocouples, the product is prevented from being scrapped due to overheating and overburning, and the final mechanical property of the product is improved.

Description

technical field [0001] The invention relates to the technical field of heat treatment of aluminum alloy forgings, in particular to a high-temperature solid solution process for 2A14 aluminum alloy rings. Background technique [0002] 2A14 aluminum alloy is currently the most widely used aluminum alloy in the aerospace field, especially the 2A14 aluminum alloy rings are used in almost all models. Long flight time has become the development direction of aerospace weapons, which makes the use environment of its ring components increasingly harsh, and puts forward higher requirements for the manufacturing technology of aluminum alloy rings, the most representative of which is 2A14 aluminum alloy The performance (strength and plasticity) of the ring is required to be increased by more than 10% compared with the past. [0003] At present, the solid solution temperature of 2A14 aluminum alloy heat treatment is in accordance with the requirements of GJB1694-1993, and the solid solu...

AI Technical Summary

Problems solved by technology

The performance of 2A14 aluminum alloy rings produced according to the previous solid solution temperature can only meet the requirements of the national military standard and the national standard, but cannot meet the requirements of the new generation of weapon models, because the mechanical performance index is 10 times higher than the national military standard and the national standard. %~20%

According to the previous heat treatment system, it has been unable to meet the existing high index requirements

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