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Composite aluminum material used for high-speed rail sound insulation honeycomb plate and produced by cold rolling composite method, and manufacturing method thereof

A manufacturing method and technology of composite aluminum, which are 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, and many production processes, and achieve shock absorption. Good sound insulation effect, reduced equipment investment, high pollution effect

Active Publication Date: 2020-06-26
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 used for high-speed rail sound insulation honeycomb plate and 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 machining and forming, and discloses a composite aluminum material used for a high-speed rail sound insulation honeycomb plate and produced through a cold rolling composite method, and a manufacturing method thereof. The material is formed by compounding a core material and two layers of a surface material, the composite aluminum material utilizes the characteristic that the melting point temperature of the core material is higher than that of the surface material, and the brazing temperature is increased to be higher than the melting point temperature of the surface material and lower than the melting point temperature of the core material, so honeycomb aluminum foil and an aluminum plate are bonded together, and the purposes of shock absorption and sound insulation are achieved. The surface material and the core material are prepared in a cast rolling and cold rolling production mode, and the upper surface material layer,the lower surface material layer and the core material layer are tightly combined together through cold rolling compounding. The invention further discloses the manufacturing method of the composite aluminum material used for the high-speed rail sound insulation honeycomb plate. Compared with a traditional hot rolling composite manufacturing method, the manufacturing method of the invention is lowin production cost and high in production efficiency. The produced composite aluminum material for the high-speed rail sound insulation honeycomb plate is high in strength before and after welding, good in corrosion resistance, uniform and stable in overall coating rate and good in 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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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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