Continuous cast-rolling process and continuous cast-rolling process system for magnesium alloy plate and strip

A magnesium alloy plate and magnesium alloy technology, which is applied in the field of continuous casting and rolling process and system of magnesium alloy plates and strips, can solve the problems of reduced mechanical properties and corrosion resistance, and the plates and strips are easy to contain slag inclusions, oxide films, etc., and achieve mechanical properties. And the effect of improving corrosion resistance, eliminating flux inclusion defects, improving mechanical properties and corrosion resistance

Inactive Publication Date: 2014-04-16
SHANGHAI XZS HEAVY MACHINERY SYST INTEGRATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is: in the existing continuous casting and rolling production process of magnesium alloy strips,

Method used

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  • Continuous cast-rolling process and continuous cast-rolling process system for magnesium alloy plate and strip
  • Continuous cast-rolling process and continuous cast-rolling process system for magnesium alloy plate and strip

Examples

Experimental program
Comparison scheme
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Example

[0025] Example (1):

[0026] See figure 1 , A continuous casting and rolling process for magnesium alloy strips. After preheating, the magnesium alloy ingots are smelted in a smelting furnace 1 with protective gas, and are allowed to stand still in a standing furnace 2; then they are transported to the front liquid tank through a launder 3. The magnesium alloy liquid is kept at a constant temperature in the front liquid tank 3, and then enters the casting-rolling mill for casting through the casting nozzle 4; a high-temperature-resistant filter 7 is provided in the liquid flow channel of the static furnace 2.

[0027] The high temperature resistant filter 7 is a foam ceramic filter. The ceramic foam filter has the following effects on the capture of inclusions: filtration-blocking inclusion particles at the openings of the filter; precipitation-when the metal melt passes through the filter, some very small inclusion particles are precipitated It can be removed at some corners insi...

Example

[0030] Example (two):

[0031] See figure 2 The difference from embodiment (1) is that the ceramic foam filter with MgO as the main material can also be arranged in the front tank 4, and the liquid flow channel is constructed in the front tank 4 through the partition plate, and the The ceramic foam filter is arranged at the passage opening.

[0032] If the adsorption performance of the filter is not considered, stainless steel wire mesh can also be used as the material of the high temperature filter.

[0033] In the above two embodiments, high-temperature-resistant filters are arranged to remove impurities absorbed from furnace lining, furnace gas, solvent, charge and operating tools, and prevent these impurities from being mixed with the molten metal into the cast-rolled strip and avoid slag inclusion , Oxide film and other defects. The mechanical properties and corrosion resistance of products are significantly improved. Therefore, through the present invention, the content of...

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Abstract

The invention relates to a continuous cast-rolling process for a magnesium alloy plate and strip. The continuous cast-rolling process is characterized by comprising the following steps: smelting a magnesium alloy ingot in a smelting furnace (1) with a protective gas after preheating treatment; stewing in a stewing furnace (2), and then conveying the magnesium alloy liquid to a front liquid tank (3) by virtue of a runner; keeping the magnesium alloy liquid at constant temperature in the front liquid tank (3); feeding the magnesium alloy liquid into a cast-rolling machine by virtue of a casting nozzle (4), and to casting and rolling, wherein a heat-resistant filter (7) is arranged inside a fluid channel of the stewing furnace (2) or the front liquid tank (3). By adopting the continuous cast-rolling process, the heat-resistant filter is arranged inside the fluid channel of the stewing furnace or the front liquid tank, so that impurities absorbed from a furnace lining, a burner gas, a solvent, a furnace charge and an operation tool are removed, the impurities are prevented from being mixed into the cast-rolling strip along with metal melt, and the defects such as slag inclusion and an oxidation film are avoided, so that the mechanical property and corrosion resistance of the product are significantly improved. Therefore, by adopting the continuous cast-rolling process, the content of occluded foreign substances is effectively reduced, and an excellent panel is finally produced.

Description

technical field [0001] The invention relates to a process and system for continuous casting and rolling of magnesium alloy strips, belonging to the technical field of continuous casting and rolling of magnesium alloy strips. Background technique [0002] Casting and rolling, also known as ingotless rolling, is a combined forming method of casting and rolling. [0003] The purification process of the continuous casting and rolling melt of magnesium alloy strips in the prior art is as follows: after the magnesium alloy ingot is preheated, it is smelted and placed in a smelting furnace and a standing furnace with protective gas; Liquid tank, the front liquid tank maintains a constant temperature of the magnesium alloy liquid, and then enters the casting and rolling machine through the casting nozzle for casting and rolling, and finally goes through the finishing rolling machine for warm rolling and cold rolling to produce finished plates of required thickness. [0004] However...

Claims

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Application Information

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IPC IPC(8): B22D11/06B22D11/119
Inventor 孙承波张路漫
Owner SHANGHAI XZS HEAVY MACHINERY SYST INTEGRATION
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