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Method for producing aluminum alloy ultra-thick plate

A production method and aluminum alloy technology, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as ingot production, achieve the effects of reducing rolling requirements, uniform structure and performance, and expanding the scope of application

Inactive Publication Date: 2008-07-09
SOUTHWEST ALUMINUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem that existing large-scale aluminum alloy ultra-thick plates cannot be produced on small-diameter rolling mills with ingots of small thickness specifications, the production method of aluminum alloy ultra-thick plates of the present invention can produce products with uniform structure

Method used

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with specific embodiments, so as to help understand the content of the present invention.

[0009] The aluminum alloy ingot with a thickness of ≤515mm that has been melted and cast is first milled to ensure that the casting defects are milled out, and then heated to the temperature required for hot forging according to the material characteristics, and then forged to make its structure uniform and compact , and then uniformly heated to the required temperature in the heating furnace according to the requirements of the hot rolling process, and then hot-rolled on a small-diameter rolling mill to produce an aluminum alloy ultra-thick plate of the required thickness.

[0010] Since the hot forging process is added after the casting defects are milled, the defects such as loose casting of the ingot can be eliminated by forging, the microstructure can be optimized, and the compactness and uniformity of the s...

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Abstract

The invention discloses a method for manufacturing an aluminum alloy extra-thick plate, which is the method that the ingot with minimum thickness rolls the aluminum alloy extra-thick plate on the mill with small roll diameter. With the completion of melt casting, the thickness of the aluminum alloy ingot is less than 515mm. After being heated, the aluminum alloy ingot is forged and then heating and hot rolling are processed. If the method is adopted, the mill with small roll diameter, the work roll diameter of which is less than 780mm, and the ingot with minimum thickness can be used for manufacturing the aluminum alloy extra-thick plate.

Description

technical field [0001] The invention relates to a production method of an aluminum alloy ultra-thick plate, which is a method for rolling an aluminum alloy ultra-thick plate on a small-diameter rolling mill with a small-thickness ingot. Background technique [0002] In the production of aluminum alloy ultra-thick plate, it is the key to transform the as-cast structure into the rolled structure. If this transformation is not carried out well, the conventional mechanical properties and fracture toughness of the ultra-thick plate will be difficult to meet the use requirements. [0003] In the traditional production process of large-scale aluminum alloy ultra-thick plates (plate thickness ≥ 120mm), when ingots with small thickness specifications (ingot thickness ≤ 515mm) are directly rolled on small roll diameter rolling mills (roll diameter ≤ 780mm), rolling The deformation cannot penetrate thoroughly, so the structure cannot be compacted, which will cause uneven or unqualified...

Claims

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Application Information

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IPC IPC(8): B21B1/22B21B15/00B21J1/02
Inventor 黎勇王华春游江海王正安胡兴华张宗权方清万陈华
Owner SOUTHWEST ALUMINUM GRP