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Preparation method for brazing aluminum alloy material and brazing aluminum alloy material

A technology of aluminum alloy materials and composite materials, which is applied in the preparation of brazed aluminum alloy materials and in the field of brazed aluminum alloy materials, can solve problems affecting brazing, energy-consuming maintenance, and production process growth, so as to save costs and avoid cleaning Equipment, the effect of shortening the production process

Inactive Publication Date: 2020-06-19
YINBANG CLAD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The aluminum alloy material for brazing produced by the existing process has a large amount of oil on the surface, which affects brazing, and customers cannot use it directly, and special cleaning equipment is required for cleaning
However, special cleaning equipment has the disadvantages of wasting the production site, spending a lot of energy on maintenance, and increasing the production process. In addition, it needs to be equipped with a sewage treatment system, causing water resources and air pollution.

Method used

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  • Preparation method for brazing aluminum alloy material and brazing aluminum alloy material
  • Preparation method for brazing aluminum alloy material and brazing aluminum alloy material
  • Preparation method for brazing aluminum alloy material and brazing aluminum alloy material

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preparation example Construction

[0030] figure 2 Shown is the flow chart of the preparation method of the above-mentioned brazed aluminum alloy material according to the embodiment of the present disclosure. The preparation method of the brazing aluminum alloy material comprises the steps of material compounding, hot rolling, intermediate rolling, intermediate annealing, final rolling, stretch bending and straightening. specifically:

[0031] Material Composite: Press figure 1 As shown, the core material and the skin material are combined to obtain a composite material.

[0032] Hot rolling: preheating the composite material, and hot rolling the preheated composite material to a thickness of 5-10 mm to obtain a hot-rolled strip. Optionally, during hot rolling, the composite material is preheated at a temperature of 450° C. to 550° C., and the holding time is 2 to 10 hours.

[0033] Intermediate rolling: The hot-rolled strip is subjected to intermediate cold rolling to obtain cold-rolled strip foil. Opti...

Embodiment 1

[0042] The brazing aluminum alloy material provided in this embodiment is formed by rolling a core material and a skin material. Among them, the core material is 3003MOD, including: Si: 0.6wt%, Fe: 0.7wt%, Cu: 0.05~0.2wt%, Mn: 1.0~1.5wt%, Zn: 0.1wt%, the rest is Al and less than 0.15wt% % of unavoidable impurities.

[0043] The leather material is 4045, including: Si: 9~11wt%, Fe: 0.8wt%, Cu: 0.3wt%, Mn: 0.05wt%, Zn: 0.1wt%, Ti: 0.2wt%, Mg: 0.05wt%, The remainder is Al and less than 0.15 wt% of unavoidable impurities. The composite ratio of leather materials on both sides is 5%;

[0044] The preparation process of the above-mentioned brazing aluminum alloy material is as follows:

[0045] 3003MOD and 4045 aluminum alloys were put into melting furnaces for melting respectively, and 3003MOD and 4045 ingots were prepared by semi-continuous casting method. 4045 is preheated, the preheating temperature is 450°C, the holding time is 10h, and then hot rolling is carried out.

[...

Embodiment 2

[0048] The brazing aluminum alloy material provided in this embodiment is formed by rolling a core material and a skin material. Among them, the core material is 3003MOD, including: Si: 0.6wt%, Fe: 0.7wt%, Cu: 0.05~0.2wt%, Mn: 1.0~1.5wt%, Zn: 0.1wt%, the rest is Al and less than 0.15wt% % of unavoidable impurities.

[0049] The leather material is 4045, including: Si: 9~11wt%, Fe: 0.8wt%, Cu: 0.3wt%, Mn: 0.05wt%, Zn: 0.1wt%, Ti: 0.2wt%, Mg: 0.05wt%, The remainder is Al and less than 0.15 wt% of unavoidable impurities. The composite ratio of leather materials on both sides is 15%;

[0050] The preparation process of the above-mentioned brazing aluminum alloy material is as follows:

[0051] 3003MOD and 4045 aluminum alloys were put into melting furnaces for melting respectively, and 3003MOD and 4045 ingots were prepared by semi-continuous casting method. 4045 is preheated, the preheating temperature is 500°C, the holding time is 6h, and then hot rolling is carried out.

[...

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Abstract

The invention provides a preparation method for a brazing aluminum alloy material and the brazing aluminum alloy material. The preparation method for the brazing aluminum alloy material comprises thesteps that material compositing is carried out, specifically, a core material and a skin material are composited to obtain a composite material; hot rolling is carried out, specifically, the compositematerial is preheated, and the preheated composite material is subjected to hot rolling until the thickness is 5-10 mm to obtain a hot-rolled plate strip; intermediate rolling is carried out, specifically, the hot-rolled plate strip is subjected to intermediate cold rolling to obtain a cold-rolled strip foil; intermediate annealing is carried out, specifically, the cold-rolled strip foil is subjected to recrystallization annealing to obtain an O-state strip foil; final rolling is carried out, specifically, the O-state strip foil is subjected to final cold rolling until the thickness is 0.4-3.0 mm to obtain a finally-rolled strip foil; and stretch bending and straightening are carried out, specifically, the finally-rolled strip foil is corrected, and the corrected strip foil is baked through a roaster at a preset speed. According to the method, a plate is baked through the roaster, and the no-clean brazing aluminum alloy material is obtained.

Description

technical field [0001] The disclosure belongs to the field of materials, and in particular relates to a preparation method of a brazing aluminum alloy material and a brazing aluminum alloy material. Background technique [0002] Aluminum alloy has the advantages of low density, high thermal conductivity, good mechanical properties and corrosion resistance, and is the main material of heat exchangers. At present, the aluminization rate of automobile heat exchangers has reached more than 90%. [0003] Brazing technology has the advantages of simplified operation and high production efficiency. However, when brazing is used to prepare heat exchangers made of aluminum, due to the needs of brazing, the raw materials need to be cleaned and degreased before use. [0004] The aluminum alloy material for brazing produced by the existing process has a large amount of oil on the surface, which affects brazing, and customers cannot use it directly, and special cleaning equipment is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/40B21B3/00B21B15/00B21B45/00
CPCB21B1/40B21B3/00B21B15/00B21B45/004B21B2003/001
Inventor 刘二磊习博建李齐根唐友增
Owner YINBANG CLAD MATERIAL
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