CN102274952A - Process for casting thin-wall structural piece by magnesium alloy - Google Patents
Process for casting thin-wall structural piece by magnesium alloy Download PDFInfo
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- CN102274952A CN102274952A CN2011102257863A CN201110225786A CN102274952A CN 102274952 A CN102274952 A CN 102274952A CN 2011102257863 A CN2011102257863 A CN 2011102257863A CN 201110225786 A CN201110225786 A CN 201110225786A CN 102274952 A CN102274952 A CN 102274952A
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- magnesium alloy
- magnesium
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Abstract
The invention discloses a process for casting a thin-wall structural piece by magnesium alloy. The process comprises the following steps of: (1) pretreating a magnesium ingot, and removing surface oxides and water; (2) preheating at the temperature of between 200 and 350 DEG C; (3) smelting the magnesium ingot at the temperature of between 650 and 750 DEG C under the internal pressure position of 12 W of a die cavity; (4) pouring purified magnesium alloy liquid into the die cavity; (5) introducing SF6 gas in a melting furnace to prevent magnesium alloy from exploding easily due to oxidation at the high temperature; (6) casting for forming; and (7) checking to be qualified, packaging and warehousing. In the process, the magnesium alloy which is used as a structural material is easy to oxidize due to wetting, so the magnesium alloy is needed to be subjected to surface treatment; before the magnesium ingot is molten, the surface oxides and the moisture are needed to be removed, and in order to prevent the magnesium alloy from combusting easily under the condition of heating oxidation, the SF6 is needed to be introduced to the melting furnace; and in the machining method, secondary die opening parting is adopted, and a cinder ladle is arranged appropriately in the machining process and the capacity of the cinder ladle is increased.
Description
Technical field
The present invention relates to a kind of pressure casting method of magnesium alloy, particularly a kind of process of magnesium alloy thin wall construction element.
Background technology
In recent years, because the density of magnesium alloy self is light, the intensity height, handling ease is relatively catered to automobile oil-saving, household electrical appliances lightweight trend, and magnesium-alloy material more and more is subjected to the favor of domestic and international electronic product.China is magnesium resource big country, raw material is stable, and magnesium alloy cast is with respect to aluminium alloy, from solid-state few to the liquid state heat absorption, melting stage is also more energy-conservation, but existing magnesium-alloy material adopts sand casting to have many defectives in process, and especially magnesium alloy is easy to generate fire check as thin-wall construction spare, cause foundry goods gas leakage and fracture, and because original magnesium alloy cast processes complex procedures, the operating time is long, causes the operation site security incident easily.
Summary of the invention
To be solved by this invention to be that problem provides a kind of mechanical processing difficulty little, and manufacturing procedure is simple, guarantees the casting technique of the magnesium alloy thin wall construction element of yield rate, and reduces the operation site potential safety hazard.
For solving the problems of the technologies described above, the present invention adopts hot chamber machine to carry out that die casting is achieved through the following technical solutions:
1, since magnesium alloy as structural material, the oxidation of making moist easily need be done surface treatment, magnesium ingot need be removed oxide on surface and moisture before fusion, and magnesium alloy burns easily, and the production scene has potential safety hazard easily, for preventing that the magnesium alloy heated oxide from burning easily, need to feed SF6 gas to calciner.
2, in order not to be subjected to the influence of cast gate transition problem when the cast aluminum liquid, and guarantee that structural member interior tissue after the cast is stable, evenly, described processing method adopts the twice-die-opening somatotype, appropriate configuration cinder ladle and increase the cinder ladle capacity in process.
The specific embodiment
Specific embodiment of the present invention is:
(1) oxide on surface and moisture are removed in magnesium ingot pre-treatment;
(2) preheating, temperature are set to 200-350 ℃;
(3) melting magnesium ingot, temperature are set to 650-750 ℃, die cavity internal pressure position 12W;
(4) will purify good magnesium alloy liquid pours in the die cavity;
(5) for avoiding magnesium alloy oxidation blast easily at high temperature, in calciner, feed SF6 gas;
(6) die cast;
(7) be up to the standards, pack, put in storage.
It is emphasized that: above only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. magnesium alloy cast thin-wall construction spare process is characterized in that following step:
(1) oxide on surface and moisture are removed in magnesium ingot pre-treatment;
(2) preheating, temperature are set to 200-350 ℃.
2.(3) the melting magnesium ingot, temperature is set to 650-750 ℃, die cavity internal pressure position 12W;
(4) will purify good magnesium alloy liquid pours in the die cavity;
(5) for avoiding magnesium alloy oxidation blast easily at high temperature, in calciner, feed SF6 gas;
(6) die cast;
(7) be up to the standards, pack, put in storage.
3. magnesium alloy cast thin-wall construction spare process according to claim 1, it is characterized in that: because magnesium alloy is as structural material, the oxidation of making moist easily, need do surface treatment, magnesium ingot need be removed oxide on surface and moisture before fusion, and needs to throw in SF6 to calciner for preventing that the magnesium alloy heated oxide from burning easily.
4. magnesium alloy cast thin-wall construction spare process according to claim 1 is characterized in that: described processing method adopts the twice-die-opening somatotype, properly disposes cinder ladle and increase the cinder ladle capacity in process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102257863A CN102274952A (en) | 2011-08-08 | 2011-08-08 | Process for casting thin-wall structural piece by magnesium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102257863A CN102274952A (en) | 2011-08-08 | 2011-08-08 | Process for casting thin-wall structural piece by magnesium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102274952A true CN102274952A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102257863A Pending CN102274952A (en) | 2011-08-08 | 2011-08-08 | Process for casting thin-wall structural piece by magnesium alloy |
Country Status (1)
| Country | Link |
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| CN (1) | CN102274952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104662709A (en) * | 2013-01-08 | 2015-05-27 | 新神户电机株式会社 | Method for manufacturing electrode plate group for lead-acid battery |
| CN105921720A (en) * | 2016-05-20 | 2016-09-07 | 河南理工大学 | Magnesium alloy thin-wall part preparation method |
-
2011
- 2011-08-08 CN CN2011102257863A patent/CN102274952A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104662709A (en) * | 2013-01-08 | 2015-05-27 | 新神户电机株式会社 | Method for manufacturing electrode plate group for lead-acid battery |
| JPWO2014109315A1 (en) * | 2013-01-08 | 2017-01-19 | 日立化成株式会社 | Manufacturing method of electrode plate group for lead acid battery |
| CN110010835A (en) * | 2013-01-08 | 2019-07-12 | 新神户电机株式会社 | The method for manufacturing lead-acid accumulator electrode group |
| CN105921720A (en) * | 2016-05-20 | 2016-09-07 | 河南理工大学 | Magnesium alloy thin-wall part preparation method |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |