Hull transition joint, aluminum steel composite material and production method thereof

A technology of composite materials and transition joints, which is applied in the direction of hulls, hull parts, and shipbuilding, can solve the problems of reduced shear strength and increased thickness of the composite interface, and achieves the effects of good surface quality, low production cost, and excellent bonding performance

Inactive Publication Date: 2017-08-29
YINBANG CLAD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of charge density, the melting amount of the matrix metal at the interface increases, and the intermetallic compound formed becomes more continuous, and its thickness also slightly increases, resulting in a significant decrease in the shear strength of the composite interface.

Method used

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  • Hull transition joint, aluminum steel composite material and production method thereof
  • Hull transition joint, aluminum steel composite material and production method thereof
  • Hull transition joint, aluminum steel composite material and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] According to this embodiment figure 1 The process flow shown prepares aluminum-steel composite materials for hull transition joints, and the specific process is as follows:

[0055] 11) Prepare a 7mm aluminum alloy plate and a 3mm steel plate. In this embodiment, a 5083 aluminum alloy plate (see Table 1 for its chemical composition) and steel plates shown in Table 4 are used.

[0056] 12) Perform O-state annealing on the aluminum alloy plate and the steel plate, then remove the oil stains on the surface of the aluminum alloy plate and the steel plate, and polish the steel plate.

[0057] 13) Heat the aluminum alloy plate to 300°C, heat the steel plate to 100°C, and then carry out rolling compounding. Single-pass rolling, the rolling reduction rate is 30%.

[0058] 14) Perform stress relief annealing on the rolled aluminum-steel composite material. The annealing temperature is 280°C, and the holding time is 1.5h.

[0059] The average shear strength of the obtained a...

Embodiment 2

[0061] According to this embodiment figure 1 The process flow shown prepares aluminum-steel composite materials for hull transition joints, and the specific process is as follows:

[0062] 21) Prepare a 10mm aluminum alloy plate and a 5mm steel plate. In this embodiment, a 3003 aluminum alloy plate (see Table 2 for its chemical composition) and steel plates shown in Table 4 are used.

[0063] 22) Perform O-state annealing of the aluminum alloy plate and the steel plate, then remove oil stains on the surface of the aluminum alloy plate and the steel plate, and polish the steel plate.

[0064] 23) Heat the aluminum alloy plate to 400°C, heat the steel plate to 200°C, and then carry out rolling compounding. Single-pass rolling, the rolling reduction rate is 35%.

[0065] 24) Perform stress relief annealing on the rolled aluminum-steel composite material. The annealing temperature is 300°C, and the holding time is 1h.

[0066] The average shear strength of the obtained alumin...

Embodiment 3

[0068] According to this embodiment figure 1 The process flow shown prepares aluminum-steel composite materials for hull transition joints, and the specific process is as follows:

[0069] 31) Prepare an 8mm aluminum alloy plate and a 4mm steel plate. In this embodiment, a 5183 aluminum alloy plate (see Table 3 for its chemical composition) and steel plates shown in Table 4 are used.

[0070] 32) Perform O-state annealing of the aluminum alloy plate and the steel plate, then remove oil stains on the surface of the aluminum alloy plate and the steel plate, and polish the steel plate.

[0071] 33) Heat the aluminum alloy plate to 350°C, heat the steel plate to 150°C, and then carry out rolling compounding. Single pass rolling, the rolling reduction rate is 40%.

[0072] 34) Perform stress relief annealing on the rolled aluminum-steel composite material. The annealing temperature is 320°C, and the holding time is 0.5h.

[0073] The average shear strength of the obtained alum...

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Abstract

The invention discloses a hull transition joint, an aluminum steel composite material and a production method thereof. The aluminum steel composite material is composed by aluminum alloy and a steel material through different temperature rolling; the aluminum alloy is 3 series aluminum alloy or 5 series aluminum alloy; and there is no intermetallic compound between an aluminum alloy layer and a steel layer of the aluminum steel composite material. The aluminum steel composite material for the hull transition joint is composed by the aluminum alloy and the steel material through different temperature rolling, direct joint between the steel layer and the aluminum alloy can be achieved, there is no brittle intermetallic compound between the steel layer and the aluminum alloy layer, and the steel layer and the aluminum alloy have excellent joint performance.

Description

technical field [0001] The invention belongs to the field of hull transition joints, and in particular relates to a hull transition joint, an aluminum-steel composite material and a production method thereof. Background technique [0002] Aluminum has low density, high specific strength, good plasticity and toughness, good thermal and electrical conductivity, and strong corrosion resistance. In the production of large and medium-sized ships and ships with special purposes, in order to reduce the weight of the hull, the superstructure or deckhouse is often changed from a steel structure to an aluminum structure, which can not only reduce the weight of the hull itself, but also increase the speed; and The center of gravity of the hull can be lowered to improve the stability of the ship. [0003] The main connection type between the aluminum alloy superstructure and the steel main hull of a ship is welding. However, due to the significant difference in physical properties betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B3/14B21B1/38B21B3/00B23P15/00
CPCB63B3/14B21B1/38B21B3/00B21B2001/386B23P15/00B63B3/142
Inventor 韩银娜张小军李龙周德敬
Owner YINBANG CLAD MATERIAL
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