Title:
HIGH-STRENGTH COMPOSITE MODIFIED ALUMINUM ALLOY PART AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/125265
Kind Code:
A1
Abstract:
The present invention provides a high-strength composite modified aluminum alloy part and a preparation method therefor. The preparation method comprises the following steps: step S1, providing an aluminum alloy melt; step S2, providing a modifier; step S3, in an inert gas atmosphere, adding the modifier into the aluminum alloy melt and smelting them to obtain a modified aluminum alloy melt; step S4, casting the modified aluminum alloy melt to obtain a cast aluminum alloy blank; and step S5, performing heat treatment on the modified aluminum alloy blank, wherein the heat treatment comprises: solid solution treatment, heating the aluminum alloy blank to 530-550℃, and maintaining the temperature for 100-300 minutes; water quenching treatment, adding the aluminum alloy blank subjected to solid solution treatment into a water bath with a temperature of 60-70℃, and carrying out water quenching for 2-4 minutes; and aging treatment, maintaining the water quenched aluminum alloy blank at 150-165℃ for 120-280 minutes, then cooling to 110-130℃ and maintaining the temperature for 30-120 minutes, and thereafter, naturally cooling to room temperature to obtain the high-strength composite modified aluminum alloy part.
Inventors:
PENG YIHUI (CN)
DA JIANCHENG (CN)
DA JIANCHENG (CN)
Application Number:
PCT/CN2022/141288
Publication Date:
July 06, 2023
Filing Date:
December 23, 2022
Export Citation:
Assignee:
LIANYUNGANG COSMOSPARK MAT SCIENCE CO LTD (CN)
International Classes:
C22C1/03; C22C1/06; C22C21/00; C22F1/04
Foreign References:
| CN114277271A | 2022-04-05 | |||
| CN112522554A | 2021-03-19 | |||
| CN1036229A | 1989-10-11 | |||
| CN108467979A | 2018-08-31 | |||
| US5076859A | 1991-12-31 | |||
| CN103938004A | 2014-07-23 |
Attorney, Agent or Firm:
WATSON & BAND INTELLECTUAL PROPERTY AGENT LTD. (CN)
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