CN103722140A - Continuous cast-rolling process and continuous cast-rolling process system for magnesium alloy plate and strip - Google Patents
Continuous cast-rolling process and continuous cast-rolling process system for magnesium alloy plate and strip Download PDFInfo
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- CN103722140A CN103722140A CN201410023050.1A CN201410023050A CN103722140A CN 103722140 A CN103722140 A CN 103722140A CN 201410023050 A CN201410023050 A CN 201410023050A CN 103722140 A CN103722140 A CN 103722140A
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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
The present invention relates to a kind of magnesium alloy board continuous casting and rolling technique and system, belong to magnesium alloy board continuous casting rolling technology field.
Background technology
Casting also claims molten condition rolling, is casting method and the manufacturing process of combining of milling method.
The magnesium alloy board continuous casting and rolling cleaning molten technique of prior art is as follows: magnesium alloy ingot is through preheating after processing, in the smelting furnace of protective gas, standing furnace, carries out melting, standing; Then through chute, be transported to front liquid case, in front liquid case, keep liquid magnesium alloy constant temperature, then enter casting and rolling machine casting through lip, finally by finishing mill, carry out warm-rolling and the cold rolling finished product sheet material of producing desired thickness.
But magnesium alloy ingot, when melting, can absorb impurity from furnace lining, furnace gas, solvent, furnace charge and operation tool, once these impurity are sneaked in cast strip with metal bath, will cause the defects such as slag inclusion, oxide-film.It significantly reduces the mechanical property of goods and corrosion resistance.
How to reduce the impurity content in magnesium alloy board, thereby improve its mechanical property and corrosion resistance, become the technical barrier of this area.
Summary of the invention
The technical issues that need to address of the present invention are: in the technique that existing magnesium alloy board continuous casting and rolling is produced, easily contain the defects such as slag inclusion, oxide-film in strip, cause mechanical property and corrosion resistance significantly to reduce.
The present invention takes following technical scheme:
A magnesium alloy board continuous casting and rolling technique, magnesium alloy ingot, through preheating after processing, carries out melting in the smelting furnace 1 of protective gas, carries out standing in standing furnace 2; Then through chute, be transported to front liquid case 3, in front liquid case 3, keep liquid magnesium alloy constant temperature, then enter casting and rolling machine casting through lip 4; In the fluid course of described standing furnace 2 or front liquid case 3, high-temperature resistant filter 7 is set.
Further, described high-temperature resistant filter 7 is ceramic foam filters.Floamed ceramics filtrating piece has following effect to the seizure of field trash: filtration---and each hole mouth place at filter stops inclusion particle; Precipitation---metal bath when the filter, some very fine foreign matter particle be deposited in some corners of filter inside and remove; Suction-operated---ceramic foam filter inwall is to solid-state fine be mingled with or liquid state is mingled with adsorbable removal.The comprehensive function that these are machine-processed, can make foam ceramic filter reach fabulous effect, not only can filter microinclusions particle in alloy melt, and can filter liquid flux and be mingled with.
Further, adopting main component is magnesian ceramic foam filter.In ceramic foam filter, MgO filter not with magnesium fusant reaction, therefore, can magnesium melt not produced and be polluted, and because the liquid flux angle of wetting in MgO and liquid magnesium alloy is very little, MgO floamed ceramics filtrating piece very easily adsorbs the flux drop in magnesium alloy, thereby makes Mg alloy castings exempt flux inclusion defect.
Further, described high-temperature resistant filter 7 is stainless steel wire web filters.
Implement a system for above-mentioned magnesium alloy board continuous casting and rolling technique, comprise refining smelting furnace 1, standing furnace 2, front liquid case 3, lip 4, casting and rolling machine 5, described high-temperature resistant filter is arranged at the inside of standing furnace 2.
Implement a system for above-mentioned magnesium alloy board continuous casting and rolling technique, comprise refining smelting furnace 1, standing furnace 2, front liquid case 3, lip 4, casting and rolling machine 5, described high-temperature resistant filter is arranged in front tank 3.
The present invention is by arranging high-temperature resistant filter in the fluid course in standing furnace or front liquid case, thereby remove the impurity absorbing from furnace lining, furnace gas, solvent, furnace charge and operation tool, avoid these impurity to sneak in cast strip with metal bath, avoided the defects such as slag inclusion, oxide-film.Mechanical property and the corrosion resistance of goods are significantly improved.Therefore, by the present invention, effectively reduce the content of field trash, final production goes out the sheet material of high-quality.
Beneficial effect of the present invention is:
1) the effective impurity such as the slag inclusion in filtering magnesium alloy board, oxide-film.
2) greatly promote mechanical property and the corrosion resistance of magnesium alloy board.
3) preferred version is taked ceramic foam filter, by filtering, precipitate, adsorb triple role, thoroughly removes the impurity such as slag inclusion, oxide-film.
4) to take main component be the ceramic foam filter of MgO to preferred version,
5) not with magnesium fusant reaction, therefore, can magnesium melt not produced and be polluted, and because the liquid flux angle of wetting in MgO and liquid magnesium alloy is very little, MgO floamed ceramics filtrating piece very easily adsorbs the flux drop in magnesium alloy, thereby makes Mg alloy castings exempt flux inclusion defect.
Accompanying drawing explanation
Fig. 1 is in embodiment mono-, the schematic diagram of magnesium alloy board continuous casting and rolling technique.
Fig. 2 is in embodiment bis-, the schematic diagram of magnesium alloy board continuous casting and rolling technique.
In figure, 1. refine smelting furnace, 2. standing furnace, 3. front liquid case, 4. lip, 5. casting and rolling machine, 6. magnesium alloy board.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further described.
Embodiment (one):
Referring to Fig. 1, a kind of magnesium alloy board continuous casting and rolling technique, magnesium alloy ingot, through preheating after processing, carries out melting in the smelting furnace 1 of protective gas, carries out standing in standing furnace 2; Then through chute, be transported to front liquid case 3, in front liquid case 3, keep liquid magnesium alloy constant temperature, then enter casting and rolling machine casting through lip 4; High-temperature resistant filter 7 is set in the fluid course of described standing furnace 2.
Described high-temperature resistant filter 7 is ceramic foam filters.Floamed ceramics filtrating piece has following effect to the seizure of field trash: filtration---and each hole mouth place at filter stops inclusion particle; Precipitation---metal bath when the filter, some very fine foreign matter particle be deposited in some corners of filter inside and remove; Suction-operated---ceramic foam filter inwall is to solid-state fine be mingled with or liquid state is mingled with adsorbable removal.The comprehensive function that these are machine-processed, can make foam ceramic filter reach effect admirably, not only can filter microinclusions particle in alloy melt, and can filter liquid flux and be mingled with.
Adopting main component is magnesian ceramic foam filter.In ceramic foam filter, MgO filter not with magnesium fusant reaction, therefore, can magnesium melt not produced and be polluted, and because the liquid flux angle of wetting in MgO and liquid magnesium alloy is very little, MgO floamed ceramics filtrating piece very easily adsorbs the flux drop in magnesium alloy, thereby makes Mg alloy castings exempt flux inclusion defect.
Implement a system for above-mentioned magnesium alloy board continuous casting and rolling technique, comprise refining smelting furnace 1, standing furnace 2, front liquid case 3, lip 4, roll 5, described high-temperature resistant filter is arranged at the inside of standing furnace 2.
Embodiment (two):
Referring to Fig. 2, be with the difference of embodiment (), the ceramic foam filter that the MgO of take is main material can also be arranged in front liquid case 4, and in front tank 4, constructs fluid course by dividing plate, and ceramic foam filter is arranged on to place, passway.
If do not consider the absorption property of filter, can also adopt stainless steel cloth as the material of high-temperature resistant filter.
Above two embodiment are all by arranging high-temperature resistant filter, thereby the impurity that removal absorbs from furnace lining, furnace gas, solvent, furnace charge and operation tool avoids these impurity to sneak in cast strip with metal bath, has avoided the defects such as slag inclusion, oxide-film.Mechanical property and the corrosion resistance of goods are significantly improved.Therefore, by the present invention, effectively reduce the content of field trash, final production goes out the sheet material of high-quality.
Claims (6)
1. a magnesium alloy board continuous casting and rolling technique, is characterized in that:
Magnesium alloy ingot, through preheating after processing, carries out melting in the smelting furnace (1) of protective gas, carries out standing in standing furnace (2); Then through chute, be transported to front liquid case (3), in front liquid case (3), keep liquid magnesium alloy constant temperature, then enter casting and rolling machine casting through lip (4);
High-temperature resistant filter (7) is set in the fluid course of described standing furnace (2) or front liquid case (3).
2. magnesium alloy board continuous casting and rolling technique as claimed in claim 1, is characterized in that: described high-temperature resistant filter (7) is ceramic foam filter.
3. magnesium alloy board continuous casting and rolling technique as claimed in claim 2, is characterized in that: adopting main component is magnesian ceramic foam filter.
4. magnesium alloy board continuous casting and rolling technique as claimed in claim 1, is characterized in that: described high-temperature resistant filter (7) is stainless steel wire web filter.
5. a system that implements the claims the magnesium alloy board continuous casting and rolling technique described in 3, comprises smelting furnace (1), standing furnace (2), front liquid case (3), lip (4), casting and rolling machine (5), is characterized in that: described high-temperature resistant filter is arranged in standing furnace (2).
6. implement the claims a system for the magnesium alloy board continuous casting and rolling technique described in 3, comprise refining smelting furnace (1), standing furnace (2), front liquid case (3), lip (4), casting and rolling machine (5), is characterized in that: described high-temperature resistant filter is arranged in front liquid case (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410023050.1A CN103722140A (en) | 2014-01-17 | 2014-01-17 | Continuous cast-rolling process and continuous cast-rolling process system for magnesium alloy plate and strip |
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| CN201410023050.1A CN103722140A (en) | 2014-01-17 | 2014-01-17 | Continuous cast-rolling process and continuous cast-rolling process system for magnesium alloy plate and strip |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170924A (en) * | 2015-09-30 | 2015-12-23 | 中镁镁业有限公司 | Automatic liquid supply device for magnesium alloy cast rolling |
| CN107127310A (en) * | 2017-07-12 | 2017-09-05 | 河南维可托镁合金科技有限公司 | The semicontinuous casting technique of magnesium base alloy |
| CN107159855A (en) * | 2017-06-26 | 2017-09-15 | 太原科技大学 | Roll-casting of magnesium alloy case before tilting casting and rolling machine-lip system |
| CN108941199A (en) * | 2018-06-27 | 2018-12-07 | 湖南三泰新材料股份有限公司 | A kind of reinforcing bar casting system and reinforcing bar casting-rolling method |
| CN109092895A (en) * | 2018-06-27 | 2018-12-28 | 湖南三泰新材料股份有限公司 | A kind of reinforcing bar continuous casting and rolling system and reinforcing bar continuous casting and tandem rolling production method |
| CN112264592A (en) * | 2020-09-24 | 2021-01-26 | 中铝材料应用研究院有限公司 | High-speed mechanical stirring casting-rolling device and method for magnesium alloy thin strip |
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| CN1456404A (en) * | 2003-01-29 | 2003-11-19 | 李华伦 | Magnesium alloy twin-roll continuous casting system for manufacturing magnesium alloy plate |
| CN1473675A (en) * | 2003-08-07 | 2004-02-11 | 李华伦 | Double roll super high speed continuous casting production line for thin magnesium strip |
| WO2007139213A1 (en) * | 2006-06-01 | 2007-12-06 | The Furukawa Electric Co., Ltd. | Process for manufacturing copper alloy wire rod and copper alloy wire rod |
| CN101664792A (en) * | 2009-10-16 | 2010-03-10 | 湖南晟通科技集团有限公司 | Engineering process for producing low-iron low-silicon 3004 alloy by directly cast-rolling electrolytic aluminium liquid |
| CN102671947A (en) * | 2012-05-30 | 2012-09-19 | 东北大学 | Magnesium alloy board casting and rolling device and magnesium alloy board casting and rolling method |
| JP2012223810A (en) * | 2011-04-22 | 2012-11-15 | Mitsui Mining & Smelting Co Ltd | Molten metal filtration device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456404A (en) * | 2003-01-29 | 2003-11-19 | 李华伦 | Magnesium alloy twin-roll continuous casting system for manufacturing magnesium alloy plate |
| CN1473675A (en) * | 2003-08-07 | 2004-02-11 | 李华伦 | Double roll super high speed continuous casting production line for thin magnesium strip |
| WO2007139213A1 (en) * | 2006-06-01 | 2007-12-06 | The Furukawa Electric Co., Ltd. | Process for manufacturing copper alloy wire rod and copper alloy wire rod |
| CN101664792A (en) * | 2009-10-16 | 2010-03-10 | 湖南晟通科技集团有限公司 | Engineering process for producing low-iron low-silicon 3004 alloy by directly cast-rolling electrolytic aluminium liquid |
| JP2012223810A (en) * | 2011-04-22 | 2012-11-15 | Mitsui Mining & Smelting Co Ltd | Molten metal filtration device |
| CN102671947A (en) * | 2012-05-30 | 2012-09-19 | 东北大学 | Magnesium alloy board casting and rolling device and magnesium alloy board casting and rolling method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170924A (en) * | 2015-09-30 | 2015-12-23 | 中镁镁业有限公司 | Automatic liquid supply device for magnesium alloy cast rolling |
| CN105170924B (en) * | 2015-09-30 | 2018-01-23 | 中镁镁业有限公司 | The automatic liquid supply device of roll-casting of magnesium alloy |
| CN107159855A (en) * | 2017-06-26 | 2017-09-15 | 太原科技大学 | Roll-casting of magnesium alloy case before tilting casting and rolling machine-lip system |
| CN107127310A (en) * | 2017-07-12 | 2017-09-05 | 河南维可托镁合金科技有限公司 | The semicontinuous casting technique of magnesium base alloy |
| CN108941199A (en) * | 2018-06-27 | 2018-12-07 | 湖南三泰新材料股份有限公司 | A kind of reinforcing bar casting system and reinforcing bar casting-rolling method |
| CN109092895A (en) * | 2018-06-27 | 2018-12-28 | 湖南三泰新材料股份有限公司 | A kind of reinforcing bar continuous casting and rolling system and reinforcing bar continuous casting and tandem rolling production method |
| CN112264592A (en) * | 2020-09-24 | 2021-01-26 | 中铝材料应用研究院有限公司 | High-speed mechanical stirring casting-rolling device and method for magnesium alloy thin strip |
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Application publication date: 20140416 |