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Composite aluminum material for high-speed rail sound-insulating honeycomb panels produced by cold-rolling composite method and manufacturing method thereof

A manufacturing method and composite aluminum technology, applied in chemical instruments and methods, railway car bodies, layered products, etc., can solve the problems of uneven coating rate of finished products, low production yield, high production energy consumption, etc., and achieve shock absorption Good sound insulation effect, good support, and the effect of reducing equipment investment

Active Publication Date: 2022-04-19
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually the honeycomb is made of aluminum as the matrix and glued, but the honeycomb made of glue has special requirements for the use conditions, and the stability is poor
[0003] Nowadays, major manufacturers produce composite aluminum materials for high-speed rail sound-proof honeycomb panels, which are usually produced by smelting-casting-sawing-milling-heating-hot-rolling-composite pairing-hot-rolling and compounding and subsequent processing methods. This method requires a lot of investment in equipment. There are many production processes, long time consumption, high production energy consumption, low production yield, and uneven coating rate of finished products
A small number of cold-rolled composite methods also have multiple annealing steps, which increases the cost of many unnecessary annealing processes

Method used

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  • Composite aluminum material for high-speed rail sound-insulating honeycomb panels produced by cold-rolling composite method and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The steps of preparing the composite aluminum material for the high-speed rail sound-insulating honeycomb panel produced by the cold composite method are as follows:

[0054] 1. Si 0.7%, Fe 0.6%, Cu 0.18%, Mn 1.3%, Mg 0.083%, Zn 1.3%, Zr 0.1, Ti 0.02% by weight, and the balance is Al as the basic component to prepare the alloy The raw material is smelted and cast-rolled by core material billet to obtain 7.0mm cast-rolled coil, alloy "3003";

[0055] According to the proportion of Si 7.2%, Fe 0.5%, Cu 0.1%, Mn 0.05%, Zn 0.1, and the balance is Al as the basic composition, the alloy raw materials are prepared for smelting and casting of skin material blanks to obtain 7.5mm cast-rolled coils, Alloy "4343";

[0056] 2. Core material preparation: Roughly roll the 3003 cast-rolled parent coil to a thickness of 4.0mm by 7.0-5.4-4.0, perform intermediate annealing for 2 hours, heat up to 240°C for 3h, continue to heat up to 520°C for 3h, and cool out of the furnace. Width 128...

Embodiment 2

[0066] The steps of preparing the composite aluminum material for the high-speed rail sound-insulating honeycomb panel produced by the cold composite method are as follows:

[0067] 1. By weight percentage Si 0.45%, Fe 0.5%, Cu 0.12%, Mn 1.4%, Mg 0.05%, Zn 1.8%, Zr 0.01%, Ti≤0.05%, the balance is Al as the basic component, Prepare alloy raw materials for core material billet smelting and casting to obtain 7.0mm cast and rolled coils, alloy "3003";

[0068] According to the proportion of Si 7.2%, Fe 0.5%, Cu 0.1%, Mn 0.05%, Zn 0.1, and the balance is Al as the basic composition, the alloy raw materials are prepared for smelting and casting of skin material blanks to obtain 7.5mm cast-rolled coils, Alloy "4343";

[0069] 2. Core material preparation: Roughly roll the 3003 cast-rolled parent coil to a thickness of 4.0mm by 7.0-5.4-4.0, perform intermediate annealing for 2 hours, heat up to 240°C for 3h, continue to heat up to 520°C for 3h, and cool out of the furnace. Width 128...

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Abstract

The invention belongs to the technical field of aluminum foil processing and forming, and discloses a composite aluminum material for high-speed rail sound-insulating honeycomb panels produced by a cold-rolling composite method and a manufacturing method thereof. The material is composed of a core material and two layers of skin materials. The composite aluminum material utilizes the feature that the melting point temperature of the core material is higher than that of the skin material, and the brazing temperature is raised to a temperature higher than the melting point temperature of the skin material and lower than the melting point temperature of the core material. In this way, the honeycomb aluminum foil and the aluminum plate are glued together to achieve the purpose of shock absorption and sound insulation. The skin material and core material are prepared by casting-rolling+cold-rolling production method, and the upper and lower layers of skin material and core material are closely combined through cold-rolling compounding. The invention also discloses a manufacturing method of the composite aluminum material for the high-speed rail sound-insulating honeycomb panel. Compared with the traditional hot-rolling composite manufacturing method, the invention has low production cost and high production efficiency. The composite aluminum material for the high-speed rail sound-insulating honeycomb panel produced by the invention has high strength before and after welding, good corrosion resistance, uniform and stable overall covering rate, and good welding quality.

Description

technical field [0001] The invention relates to a composite aluminum material for high-speed rail sound-insulating honeycomb panels produced by a cold-rolling composite method and a manufacturing method thereof, belonging to the technical field of aluminum foil processing and forming. Background technique [0002] With the development of society and science and technology, the materials used in high-speed rail are developing in the direction of lightweight, and honeycomb panels are widely used in rail transit. Usually the honeycomb is made of aluminum as the matrix and glued, but the honeycomb made of glue has special requirements for the use conditions, and the stability is poor. [0003] Nowadays, major manufacturers produce composite aluminum materials for high-speed rail sound-proof honeycomb panels, which are usually produced by smelting-casting-sawing-milling-heating-hot-rolling-composite pairing-hot-rolling and compounding and subsequent processing methods. This metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01B32B15/20B32B3/12B32B7/10C22C21/00C22C21/10C22C21/02C22F1/04C22F1/053C22F1/043B61D17/00
CPCB32B15/016B32B3/12B32B7/10C22C21/00C22C21/10C22C21/02C22F1/04C22F1/053C22F1/043B61D17/00B32B2307/102B32B2307/56B32B2605/00
Inventor 史明飞刘前换田国建胡刘飞任素贞董则防
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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