A kind of preparation method of aluminum alloy material for flux-free gas shielded brazing

Abstract

The invention relates to a preparation method of an aluminum alloy material for flux-free gas shielded brazing, which is characterized by comprising the following steps: 1) batching; 2) casting; 3) milling; 4) hot rolling; 5) Cold rolling; 6) One intermediate annealing; 7) Cold finishing rolling; 8) Two intermediate annealing; 9) Foil rolling; 10) Slitting; 11) Packaging; The rolling process of rolling ensures that the size of the product meets the requirements, and at the same time further improves its heat dissipation performance, so that the connection performance of the weldment can be effectively achieved in the process of gas shielded brazing, thereby ensuring the quality of brazing, thereby further improving the quality of the finished product; Transfer it into the stereo scanning workshop, generate a stereo actual model for each casting, and compare it with the preset stereo preset model inside the center console, so as to determine the subsequent milling process according to different comparison results, and further improve the milling process. Surface accuracy and milling efficiency.

Description

technical field [0001] The invention relates to the technical field of aluminum products, in particular to a preparation method of an aluminum alloy material for flux-free gas shielded brazing. Background technique [0002] Gas shielded brazing is the use of inert gas as a protective atmosphere to melt the low melting point metal at a certain temperature, and then connect the contacting metals with a high melting point during cooling and solidification, which is called gas shielded brazing. In the prior art, the welding method of gas shielded brazing is often used for the welding of aluminum coils and plates made of aluminum alloys, and a large amount of heat is generated during the brazing process. High requirements, aluminum alloy materials that do not meet the corresponding heat dissipation performance parameters not only affect the connection strength after brazing, but also affect the quality of products after forming. SUMMARY OF THE INVENTION [0003] In order to ov...

AI Technical Summary

Problems solved by technology

In the prior art, when welding workpieces such as aluminum coils and plates made of aluminum alloy, the welding method of gas shielded brazing is often used, and a large amount of heat will be generated during the brazing process. High requirements, aluminum alloy materials that do not meet the corresponding heat dissipation performance parameters not only affect the connection strength after brazing but also affect the quality of the formed product

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