Rolling controlling method and device for double-roller continuous casting magnesium alloy sheet

A magnesium alloy, continuous casting technology, applied in metal rolling, rolling force/roll gap control, temperature control, etc., can solve the problems of improving uniformity, not mentioned, etc., to reduce anisotropy, improve strength, Effect of suppressing the tendency of rolling cracks

Inactive Publication Date: 2008-06-04
UNIV OF SCI & TECH LIAONING +1
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  • Abstract
  • Description
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Problems solved by technology

The patent does not mention cross rolling to improve uniformity

Method used

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  • Rolling controlling method and device for double-roller continuous casting magnesium alloy sheet
  • Rolling controlling method and device for double-roller continuous casting magnesium alloy sheet

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0027] a. The molten magnesium alloy solution is cast-rolled in an integrated casting-rolling machine 1 . Taking AZ31 magnesium alloy as an example, the liquid metal casting temperature is controlled at 680-720°C; the temperature of the casting rolls of the cast plate is 350-450°C, the casting and rolling speed is 15-20m / min, and the thickness of the plate is 2.5-3mm; Enter the lower cooling system, control the cooling speed and prevent high-temperature oxidation in the cooling oil, run the oil outlet groove along the guide roller group, and control the temperature of the cast plate oil outlet groove at 300-350°C. Use squeeze rolls to remove excess oil from the surface of the casting rolls.

[0028] b. The cast plate out of the oil tank is leveled and lightly rolled by a rolling mill 2, then cut by flying shear 3, collected on a stand 4 and stacked, and then e...

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Abstract

The invention discloses a dual-roll continuous casting magnesium alloy thin plate rolling control method and a device. The method comprises that magnesium alloy solution is formed in an integrated casting and rolling machine; the temperature of a casting plate out of a casting roll is 300 DEG C to 500 DEG C and casting and rolling speed is 10m / min to 90m / min; the casting and rolling plate is cooled in oil with control temperature of 200 DEG C to 400 DEG C and plate-out thickness is 1mm to 4mm; uniform annealing disposal is carried out before the hot rolling of the casting and rolling plate; the front and the rear of a rolling machine are provided with heat preservation rolls for heat supplementation; finished magnesium alloy plate of 0.2mm to 1mm can be rolled in an annealing period. The device comprises an integrated casting and rolling machine, a continuous annealing furnace behind the casting and rolling machine, three four-roll hot rolling machines arranged in 90 DEG and heat preservation rolls at the front and the rear, a flying shear and an edge-cutting shear. By adopting casting rolling and rolling methods to produce the magnesium alloy plate, the invention has the advantages of short flow, low production cost, uniform composition of products, good surface quality and uniform mechanical performance in all directions. The method and the device can be applied to the production of the magnesium alloy and aluminium alloy thin plates in all series.

Description

technical field [0001] The invention relates to a controlled rolling method and device for a magnesium alloy thin plate, more specifically a method and a device for producing a magnesium alloy thin plate by a combined process of twin-roll continuous casting and controlled rolling. Background technique [0002] Magnesium alloy is the lightest practical metal structure material. It has the advantages of low density, high specific strength and specific stiffness, good damping and shock absorption, good thermal conductivity, good electromagnetic shielding effect, excellent machining performance, and easy recycling. , communications electronics, automobiles and home appliances and other industries have more and more widely used. Magnesium alloy parts are produced from plates through bending, stamping, welding and other forming processes, which have the advantages of high forming efficiency, large production scale, and the ability to produce thin-walled parts; the produced deforme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/04B21B1/46B22D11/16B22D11/06C21D9/46C21D11/00B21B37/74B21B37/58B21B37/56
Inventor 赵红阳胡小东巨东英
Owner UNIV OF SCI & TECH LIAONING
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