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Process for rolling deformation magnesium and magnesium alloy sheet material

A processing method and magnesium alloy technology, which is applied in the field of rolling processing of deformed magnesium and magnesium alloy plates, can solve the problems of low yield and difficulty in preparing large and thin-walled components

Inactive Publication Date: 2004-11-10
LUOYANG COPPER PROCESSING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of deformed magnesium and magnesium alloy is mainly die casting, but due to the limitation of die casting mechanical properties and the limitation of its metal flow performance, it is difficult to prepare deformed magnesium and magnesium alloy into large and thin-walled components, and the yield rate is relatively low. Low, about 10%, so it limits the application of magnesium and magnesium alloys; therefore, in recent years, research on the formability of deformed magnesium and magnesium alloys has become a frontier topic for further development

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  • Process for rolling deformation magnesium and magnesium alloy sheet material
  • Process for rolling deformation magnesium and magnesium alloy sheet material
  • Process for rolling deformation magnesium and magnesium alloy sheet material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0014] The rolling processing method of deformed magnesium and magnesium alloy plates. When rolling and processing thick plates, the continuously cast ingots are cut into 165×750×800MM ingots by face milling and placed in a soaking furnace. Tissue homogenization treatment, the soaking temperature is 400-420°C, the time is 22-26h, and then air-cooled to room temperature; then heated in a heating furnace for 6-8h, the temperature of the metal out of the furnace is 460-490°C; hot rolling is adopted, and the roll is Upper and lower concave rolls, concavity 0.15-0.30mm, preheating 2-8h, preheating temperature 120-160°C, hot rolling finishing temperature 370-430°C, rolling processing rate 70-94%, and according to the properties of the alloy Determine the hot-rolling temperature and the end-rolling temperature based on its plasticity diagram and other factors, and then cut and pack the finished product as required to make MB3 wrought magnesium and magnesium alloy thick plates in R sta...

Embodiment 2

[0016] The rolling processing method of deformed magnesium and magnesium alloy plates, when implementing the rolling process of plates, will be rolled into 10×1150×1000mm slabs, heated by a heating furnace, the heating temperature is 400-460°C, and the heating time is 2.5- 5h; then through the rolling mill for several times of warm rolling, the roll is a flat roll, the roll temperature is 100-150°C, the preheating time is 2-8h, and the rolling processing rate is 30-60%; then annealed in an annealing furnace, according to different alloy grades Select the appropriate annealing temperature according to the state requirements, the annealing temperature for the M state is 330-350°C, the annealing temperature for the Y2 state is 285-300°C, and the annealing time is 0.5-1.5h; then the finished product is cut and packaged according to the requirements. , and prepare MB1 wrought magnesium and magnesium alloy middle plates with a thickness of 2-10mm in M ​​state.

Embodiment 3

[0018] The rolling processing method of deformed magnesium and magnesium alloy plates. When rolling and processing thin plates, the slabs of 4×1150×2000mm are annealed in the middle, the annealing temperature is 420-450°C, and the annealing time is 2.0-2.5h. The rolling mill is warm rolled for many times, the rolls are upper and lower flat rolls, the roll preheating temperature is 90-120°C, the preheating time is 4-8h, the rolling temperature is 420-450°C, the rolling processing rate is 30-60%, and the rolling is 2 ×1150×1500mm, annealing again, the annealing temperature is 400-440℃, the annealing time is 1.5-2.0h, the rolling mill is warm rolled for many times, the rolls are upper and lower flat rolls, the preheating temperature of the rolls is 90-120℃, and the preheating time is 4-8h , the rolling temperature is 400-440°C, the rolling processing rate is 30-60%, and the finished product is annealed, and the appropriate annealing temperature is selected according to different a...

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Abstract

The invention is a roll processing method of deformed Mg and Ma alloy sheets, adopting hot-rolling and multiple warm-rolling methods for extruded or forged ingot blanks, and semicontinuous / continuous cast ingot blanks, strictly controlling preheating temperature of forming roll and press roll and sheet temperature; firstly ingot blank milling and sawing-heating-hot rolling-blanking-cutting finished product into thick sheets-packing and storing; then the thick sheet blanks-heating-warm rolling-acid pickling-heating-secondary warm rolling-interrupting or blanking-heating-tertiary warm rolling-annealing finished products-cutting finished products into medium sheet-packaging and storing; then sheet blanks--middle annealing-primary thin sheet warm rolling-middle annealing-secondary thin sheet warm rolling-heating-tertiary thin sheet warm rolling-annealing finished products-cutting finished products into thin sheets and ultrathin sheets-packaging and storing; and finally making into100-0.2mm thick deformed Mg and Ma alloy sheets.

Description

Technical field: [0001] The invention relates to the technical field of processing nonferrous metal magnesium and magnesium alloys, and relates to a rolling processing method for deformed magnesium and magnesium alloy plates. technical background: [0002] Deformed magnesium and magnesium alloy sheets have been widely used in aerospace, aviation, communications, transportation, automobiles, and machinery due to their light specific gravity, high strength, high damping, good electromagnetic shielding performance, and good recyclability. and other fields. At present, the application of deformed magnesium and magnesium alloy is mainly die casting, but due to the limitation of die casting mechanical properties and the limitation of its metal flow performance, it is difficult to prepare deformed magnesium and magnesium alloy into large and thin-walled components, and the yield rate is relatively low. Low, about 10%, which limits the application of magnesium and magnesium alloys;...

Claims

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Application Information

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IPC IPC(8): C22F1/06
Inventor 张大全李向宇马可定
Owner LUOYANG COPPER PROCESSING GROUP
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