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Method for processing specific shape-changing magnesium and magnesium alloy plate strip

A processing method and magnesium alloy plate technology, applied in metal processing equipment, metal rolling, manufacturing tools, etc., can solve the problems of not being able to produce thick plates, increase the variety of deformed magnesium alloy products, etc., and achieve the expansion of the range of mechanical properties of products, Improve mechanical properties and shorten the process

Inactive Publication Date: 2006-03-22
LUOYANG COPPER PROCESSING GROUP
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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a processing method for specially deformed magnesium and magnesium alloy medium and thick plate strips, which can significantly improve the mechanical properties of magnesium alloys, and solve the problem that magnesium alloy plates cannot produce H24 state medium and thick plates Difficulties, increase the variety of wrought magnesium alloy products

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  • Method for processing specific shape-changing magnesium and magnesium alloy plate strip

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specific Embodiment approach 2

[0026] Take the production of deformed magnesium alloy AZ41M plates with a size of 12×1000×2000mm as an example:

[0027] According to the conventional process, batching and smelting - semi-continuous casting (ingot) - sawing - milling - flaw detection - homogenization heat treatment and other processes are processed into ingots.

[0028] Heating: Put the qualified ingots of magnesium and magnesium alloys into the heating furnace, heat the ingots to 480°C, and keep the temperature for 3 hours.

[0029] Hot rolling: hot rolling the heated ingot to 15mm.

[0030] On-line cooling: cool the hot-rolled billet to 250°C.

[0031] Hot rolling again: continue hot rolling to 12mm.

[0032] Low-temperature treatment: put the rolled sheet into an annealing furnace for low-temperature treatment at a heating temperature of 160°C and keep it warm for 2 hours. Finished product inspection: put into storage after passing the test.

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Abstract

The production process of special deformed magnesium and magnesium alloy plate or belt includes the technological steps of: compounding material and smelting, semi-continuous casting, sawing and cutting, milling, fault detection, homogeneous heat treatment, heating to 440-510 deg.c and maintaining for over 1 hr, hot rolling to the thickness of 1.149-1.429 times the finished product, on-line cooling to 180-280 deg.c, hot rolling for the second time to the required thickness, low temperature heat treatment through annealing at 150-190 deg.c in annealing furnace for over 1 hr, naturally cooling and product inspection. The present invention has short production process, low power consumption and low cost.

Description

Technical field: [0001] The invention relates to the technical field of nonferrous metal processing, and relates to a processing method for special deformed magnesium and magnesium alloy plates and strips. Background technique: [0002] At present, in the processing of deformed magnesium and magnesium alloy plates and strips, the hot rolling process is adopted: batching and smelting-semi-continuous casting (ingot)-sawing-milling-flaw detection-homogenization heat treatment-heating-heating Rolling—annealing—finishing—surface treatment—product packaging and warehousing and other processes; using this hot rolling process, the product has large limitations, the state can only reach H112, the tensile strength is 235-258MPa, and the yield strength is 160-189MPa; With the continuous development of aerospace technology, higher tensile strength and yield strength are required for aerospace materials, which cannot meet the requirements of H24 state. [0003] In order to produce speci...

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Application Information

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IPC IPC(8): C22F1/06B21B1/46B21B37/16
Inventor 李向宇刘阳
Owner LUOYANG COPPER PROCESSING GROUP