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A kind of rolling process of aluminum alloy plate

A technology of aluminum alloy plate and process, which is applied in the direction of metal rolling, metal rolling, metal rolling frame, etc., can solve the problem of poor flatness of the plate, and achieve the effect of solving the problem of flatness

Active Publication Date: 2021-09-03
衡阳市鑫诚和重型机械设备制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a rolling process of aluminum alloy plate, which solves the problem of poor flatness of the plate during rolling

Method used

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  • A kind of rolling process of aluminum alloy plate
  • A kind of rolling process of aluminum alloy plate
  • A kind of rolling process of aluminum alloy plate

Examples

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Embodiment 1

[0021] Such as figure 1 As shown, a dragon-shaped rolling mill means that the upper and lower rolls have the same roll diameter and different rotational speeds. At the same time, the axes of the upper and lower rolls are not in the same vertical plane, but the upper roll with a smaller line speed is rolled toward the rolling mill. The export direction V is offset by a certain distance, that is, the amount of dislocation S, that is, the same diameter and asymmetric different speed rolling. In this way, the rolled piece can form a forward sliding area, a rolling area and a rear sliding area in the deformation area. In the "rolling" zone, while the rolled piece bears the compressive force in the vertical direction, it also bears the shear stress in the horizontal direction, so that the rolled piece produces shear strain while being compressed. Shear strain will produce shear deformation, which is beneficial to the grain refinement of the rolled piece, and improves the microstruc...

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Abstract

The invention discloses a rolling process suitable for aluminum alloy plates, which includes the following steps: (1) Setting rolling parameters: the maximum rolling force is 1200 tons, the maximum torque is 400kNm, the maximum downward force is 20 mm, and the upper roll is rolled The speed is 1.5~3.5m / s, the diameter of the upper and lower rolls is 100 mm, and the variable speed ratio i is 1.2; (2) For the setting of the misalignment amount S, set the misalignment amount S according to the following nonlinear regression equation. mmh-entrance thickness of rolling plate, mmΔh-down pressure, mmi-differential speed ratio, ratio of upper roll speed to lower roll speed, 1<i≤1.2 where: Δh is set to 10% of h ⑶, inspection of rolling The straightness of the rear aluminum plate. The invention has the advantage that the rolled high-performance aluminum plate has good flatness.

Description

technical field [0001] The invention relates to the field of metal material processing, in particular to an aluminum alloy plate rolling process. Background technique [0002] High-performance aluminum alloy (such as Al-Zn-Mg-Cu series) medium-thick plate is widely used in the manufacture of fuselage frames and bulkheads due to its excellent specific strength, corrosion resistance, toughness and fatigue resistance, and has become an important important aeronautical structural materials. The traditional hot rolling process is currently the main processing method for preparing such high-strength and tough aluminum alloy plate, but there is a common problem of uneven deformation along the thickness direction of the plate in the process of producing plate by this process, which eventually leads to microstructure in the thickness direction of the plate. Inhomogeneous mechanical properties seriously affect and limit the life and wide application of such alloy sheets. [0003] As...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/30B21B3/00B21B13/02
CPCB21B1/30B21B3/00B21B13/02B21B2003/001B21B2013/021
Inventor 黄云生刘建华
Owner 衡阳市鑫诚和重型机械设备制造有限公司
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