Shape correction and heat treatment method of low-plasticity and low-deformation material plates

A heat treatment method and a difficult-to-deform technology, applied in the field of processing and forming of difficult-to-deform materials, to achieve the effects of avoiding bending and warping, strong operability, and avoiding cracking and fracture problems

Active Publication Date: 2017-05-31
有研金属复材技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problems of leveling cracking and heat treatment deformation of low plastic and difficult to deform materials, the present invention provides a method for shape correction and heat treatment of low plastic and difficult to deform materials, which is characterized in that the method includes the following steps:

Method used

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  • Shape correction and heat treatment method of low-plasticity and low-deformation material plates

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Hot rolled TiB 2 The thickness of the / QB2 copper-based composite material plate is 5mm, and the unevenness of the plate is 25-35mm / m. The unevenness of the lower supporting plate and the upper pressing plate is less than 1.5mm / m, the thickness of the lower supporting plate and the upper pressing plate is 40mm, the aperture of the uniformly distributed small holes on the lower supporting plate and the upper pressing plate is 6mm, the lower supporting plate and the upper pressing plate The material is Inconel718 nickel-based alloy; the pressure plate is No. 45 steel plate with a thickness of 80mm. The solid solution temperature is 780°C, and the temperature is kept for 2.5 hours. The aging temperature is 315°C, and the aging time is 2 hours. After leveling and heat treatment, TiB 2 The unevenness of / QB2 copper matrix composite material plate is 1~1.5mm / m.

Embodiment 2

[0027] Hot rolled TiB 2 The thickness of the / 6351 aluminum-based composite material plate is 25mm, and the unevenness of the plate is 40-50mm / m. The surface roughness of the lower supporting plate and the upper pressing plate is less than 1.5mm / m, the thickness of the lower supporting plate and the upper pressing plate is 60mm, the aperture of the uniformly distributed small holes on the lower supporting plate and the upper pressing plate is 10mm, the lower supporting plate and the upper pressing plate The material is GH13 hot work die steel; the pressure plate is No. 45 steel plate with a thickness of 120mm. The solid solution temperature is 500°C, the heat preservation is 3.5 hours, the aging temperature is 165°C, and the aging time is 12 hours. After leveling and heat treatment, TiB 2 The roughness of / 6351 aluminum matrix composite material plate is 0.9~1.2mm / m.

Embodiment 3

[0029] The thickness of the hot-rolled 7075 / 6061 layered composite sheet is 2mm, and the roughness of the sheet is 10-25mm / m. The unevenness of the lower supporting plate and the upper pressing plate is less than 1.5mm / m, the thickness of the lower supporting plate and the upper pressing plate is 25mm, the aperture of the uniformly distributed small holes on the lower supporting plate and the upper pressing plate is 4mm, the lower supporting plate and the upper pressing plate The material is GH13 hot work die steel; the pressure plate is No. 45 steel plate with a thickness of 50mm. The solid solution temperature is 470°C, heat preservation is 2 hours, the aging temperature is 120°C, and the aging time is 24 hours. After leveling and heat treatment, the unevenness of the 7075 / 6061 layered composite sheet is 1-1.5mm / m.

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Abstract

The invention relates to a shape correction and heat treatment method of low-plasticity and low-deformation material plates and belongs to the technical field of processing and forming of low-deformation materials. The method comprises the following steps: flattening the low-plasticity and low-deformation material plates under the action of high temperature and pressure, putting upper plate surfaces and low plate surfaces of the plates into water under the constraint action, rapidly cooling and carrying out solution treatment, then carrying out aging treatment to obtain plates with unevenness being less than 1.5mm/m. The method is capable of controlling shape and property of the low-plasticity and low-deformation material plates; the problem of the shape of the low-plasticity and low-deformation material plates is solved; the quality and the yield of the plates are ensured; the application of the low-plasticity and low-deformation material plates can be promoted and broadened; the low-plasticity and low-deformation material plates has good economic values and application prospects.

Description

technical field [0001] The invention belongs to the technical field of processing and forming of difficult-to-deform materials, and in particular relates to a method for shape correction and heat treatment of low-plasticity and difficult-to-deform materials plates. Background technique [0002] Metal matrix composite materials, metal layered composite materials, intermetallic compound structural materials and other low-plastic and difficult-to-deform materials have excellent properties such as light weight, high specific stiffness, and high specific strength. , transportation and other fields have good applications. Low plasticity and difficult deformation materials such as metal matrix composites and metal layered composites have low plasticity and toughness, and their machinability is poor. even break. After the traditional thermal leveling plate is adopted, solution aging treatment is required to improve the comprehensive performance of the plate. During solution treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/00B21D1/00
CPCB21D1/00C22F1/002
Inventor 郭胜利
Owner 有研金属复材技术有限公司
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