CN109877305A - It is formed with the magnesium alloy cast casting bag apparatus of cathodic protection - Google Patents
It is formed with the magnesium alloy cast casting bag apparatus of cathodic protection Download PDFInfo
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- CN109877305A CN109877305A CN201910343756.9A CN201910343756A CN109877305A CN 109877305 A CN109877305 A CN 109877305A CN 201910343756 A CN201910343756 A CN 201910343756A CN 109877305 A CN109877305 A CN 109877305A
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- magnesium alloy
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- regulated power
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Abstract
The invention belongs to magnesium alloy cast equipment technical fields, the specific technical proposal is: being formed with the magnesium alloy cast casting bag apparatus of cathodic protection, including casting package and regulated power supply, the two sides of casting package have been arranged symmetrically lifting lug, the bottom of casting package is equipped with and the conductivity ceramics that is connected inside casting package, conductivity ceramics is contacted with magnesium alloy casting liquid phase, the positive terminal of regulated power supply is grounded, the negative terminals of regulated power supply are connected by one end of flexible cable and armored cable, the other end of armored cable is connect with conductivity ceramics, armored cable is embedded in the containment wall of casting package and the lifting lug of casting package side, before Foundry Production, regulated power supply is opened first, controlling conductivity ceramics by regulated power supply is negative voltage, magnesium alloy casting liquid is connected with conductivity ceramics realizes magnesium alloy casting liquid band negative electrical charge, form a kind of magnesium alloy casting for being formed with cathodic protection Casting bag apparatus is made, the oxidation reaction and Hydrogen Brittleness Phenomena for reducing magnesium metal occur, and improve the lumber recovery of cast magnesium alloy.
Description
Technical field
The invention belongs to magnesium alloy cast equipment technical fields, and in particular to cathodic protection is formed with when a kind of magnesium alloy cast
Casting cast bag apparatus.
Background technique
Currently, using flux protection method, gas protection method, alloying using magnesium alloy cast process both at home and abroad.
Flux protection method is to be fused into liquid at a lower temperature using the compound of low melting point, is spread in magnesium alloy liquid level
It opens, because preventing magnesium liquid from contacting to play a protective role with air.The flux generally used now is by anhydrous carnallite (MgCI2-
KC based on), some fluorides, chloride composition are added.Using more convenient, production cost is low for the agent, and protection using effect is good, fits
Together in the productive prospecting of medium-sized and small enterprises.But to be dehydrated again before the agent use, when use, can release the smell for the people that chokes.By
It can gradually sink in the density of flux is bigger, need constantly to add.A large amount of pernicious gases are released in use process, pollute ring
Border, corrosion workshop are serious.
Gas protection method is to cover one layer of inert gas on the surface of liquid magnesium alloy or can react the fine and close oxygen of generation with magnesium
Change the gas of film, to completely cut off the oxygen in air, the main protective gas of use is SF6、S02、CO2、Ar、N2Deng.In order into one
Step improves protective effect and reduces more expensive SF6The dosage of gas, foreign countries are generally in SF6Mixing air or other dryings in gas
Gas such as CO: mixed gas protected effect is good, but there is problems in thatPollute environment, SF6S0 can be generated2、SF4Etc. toxic
Gas, SF6Effect to global warming is CO224900 times;The device is complicated, needs complicated gas mixing device and sealing dress
It sets;Corrode equipment, significantly reduces pot life.
Alloying past people improve the flame retardant property of magnesium alloy using beryllium element is added in the magnesium alloy, but beryllium
It is more toxic, and additional amount is excessively high can cause grain coarsening and increase hot cracking tendency, therefore is limited by additive amount.Japanology
Person's research thinks that the ignition temperature of magnesium alloy can be significantly improved by adding a certain amount of calcium, excessively high but there is additional amounts, and
The mechanical property of severe exacerbation magnesium alloy.Calcium and zirconium are added simultaneously has flame retardant effect.Studies in China is thought, in magnesium alloy
Cerium is added in AZ91D can effectively improve the initiation temperature of magnesium alloy.
Summary of the invention
To solve technical problem of the existing technology, the present invention provides yin is configured with during a kind of magnesium alloy cast
The casting casting bag apparatus of pole protection, reduces the generation of oxidation reaction and Hydrogen Brittleness Phenomena of the magnesium metal in casting process, into
And improve cast magnesium alloy lumber recovery.
To achieve the above object, the technical scheme adopted by the invention is as follows: be formed with cathodic protection magnesium alloy cast casting
Bag apparatus, including casting package and regulated power supply, the two sides of casting package have been arranged symmetrically lifting lug, and the bottom of casting package is equipped with and casting
The internal conductivity ceramics being connected of packet, the positive terminal ground connection of regulated power supply, the negative terminals of regulated power supply pass through soft electricity
The connection of one end of cable and armored cable, the other end of armored cable are connect with conductivity ceramics, and armored cable is embedded in casting package
In the lifting lug of containment wall and casting package side.
Flexible cable is connect with armored cable by junction box.
Compared with prior art, the present invention specifically having the beneficial effect that: Mg alloy castings are in forming process, due to magnesium
Alloy is in contact with the conductivity ceramics of casting package bottom, controls the voltage that magnesium alloy casts liquid by regulated power supply, realizes magnesium alloy
The voltage of casting is negative, and produces the effect of cathodic protection, reduces the generation of magnesium metal oxidation reaction and Hydrogen Brittleness Phenomena, in turn
Improve cast magnesium alloy lumber recovery.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure, 1 is casting package, and 2 be lifting lug, and 3 cast liquid for magnesium alloy, and 4 be conductivity ceramics, and 5 be regulated power supply, and 6 be soft electricity
Cable, 7 be junction box, and 8 be armored cable, and 9 negative terminals, 10 be positive terminal.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1, it is formed with the magnesium alloy cast casting bag apparatus of cathodic protection, including casting package 1 and regulated power supply 5,
The two sides of casting package 1 have been arranged symmetrically lifting lug 2, the bottom of casting package 1 be equipped with the conductivity ceramics 4 that is connected inside casting package 1,
Conductivity ceramics 4 is placed in the center of 1 bottom of casting package, and during casting, conductivity ceramics 4 is in contact with magnesium alloy casting liquid 3,
The positive terminal 10 of regulated power supply 5 is grounded, and the negative terminals 9 of regulated power supply 5 pass through flexible cable 6 and the one of armored cable 8
End connection, the other end of armored cable 8 are connect with conductivity ceramics 4.During casting, the point adjusting of regulated power supply 5 is arrived
The corrosion point of magnesium alloy, so that magnesium alloy obtains cathodic protection in casting.
Armored cable 8 is embedded in the lifting lug 2 of 1 side of containment wall and casting package of casting package 1, and whole device is not neatly random,
The normal work of casting package 1 is not influenced.
Flexible cable 6 is connect with armored cable 8 by junction box 7.
Specific work process are as follows: before Foundry Production, regulated power supply 5 is opened first, conductive pottery is controlled by regulated power supply 5
Porcelain 4 is negative voltage, and magnesium alloy casts liquid 3 and realizes that magnesium alloy casting liquid 3 is negatively charged with the conducting of conductivity ceramics 4, forms one kind and be formed with yin
The device of the magnesium alloy cast casting package 1 of pole protection, the oxidation reaction and Hydrogen Brittleness Phenomena for reducing magnesium metal occur, and then improve
The lumber recovery of cast magnesium alloy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all wrap within the scope of the present invention within mind and principle.
Claims (3)
1. being formed with the magnesium alloy cast casting bag apparatus of cathodic protection, which is characterized in that including casting package (1) and regulated power supply
(5), the two sides of the casting package (1) have been arranged symmetrically lifting lug (2), and the bottom of the casting package (1) is equipped with interior with casting package (1)
The conductivity ceramics (4) that portion is connected, positive terminal (10) ground connection of the regulated power supply (5), the regulated power supply (5) are born
Pole terminals (9) are connect by flexible cable (6) with one end of armored cable (8), the other end and conductivity ceramics of armored cable (8)
(4) it connects.
2. the magnesium alloy cast casting bag apparatus according to claim 1 for being formed with cathodic protection, which is characterized in that the armour
Dress cable (8) is embedded in the containment wall of casting package (1) and the lifting lug (2) of casting package (1) side.
3. the magnesium alloy cast casting bag apparatus according to claim 2 for being formed with cathodic protection, which is characterized in that described soft
Cable (6) is connect with armored cable (8) by junction box (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343756.9A CN109877305A (en) | 2019-04-26 | 2019-04-26 | It is formed with the magnesium alloy cast casting bag apparatus of cathodic protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343756.9A CN109877305A (en) | 2019-04-26 | 2019-04-26 | It is formed with the magnesium alloy cast casting bag apparatus of cathodic protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109877305A true CN109877305A (en) | 2019-06-14 |
Family
ID=66938339
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910343756.9A Pending CN109877305A (en) | 2019-04-26 | 2019-04-26 | It is formed with the magnesium alloy cast casting bag apparatus of cathodic protection |
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| CN (1) | CN109877305A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523957A (en) * | 2019-10-14 | 2019-12-03 | 哈尔滨工业大学 | A kind of magnesium lithium alloy casting mold and casting method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6146345A (en) * | 1984-08-08 | 1986-03-06 | Kobe Steel Ltd | Combustion preventive treatment for heat insulating sleeve in riser part for casting mg alloy |
| JP2004243407A (en) * | 2003-02-17 | 2004-09-02 | Sumitomo Metal Ind Ltd | Method of continuously casting molten magnesium alloy |
| JP2006334610A (en) * | 2005-05-31 | 2006-12-14 | Toyota Motor Corp | Method for preventing combustion of molten metal, method for producing casting, and magnesium alloy casting |
| CN101176914A (en) * | 2006-11-10 | 2008-05-14 | 宝山钢铁股份有限公司 | Method for preventing cast steel stove continuous casting water gap from obstruction and reducing erosion |
| CN103331305A (en) * | 2013-06-07 | 2013-10-02 | 中南大学 | Method for asymmetric sink-type cast-rolling preparation of magnesium alloy strip under action of composite energy field |
| CN106001133A (en) * | 2016-07-16 | 2016-10-12 | 太原科技大学 | Conveying rollgangs with cathodic protection for bare pendent electric wires |
| CN106040755A (en) * | 2016-07-16 | 2016-10-26 | 太原科技大学 | Cathode protection conveying roller way provided with electric conduction carrier rollers |
| CN209849874U (en) * | 2019-04-26 | 2019-12-27 | 太原科技大学 | Magnesium alloy casting ladle device with cathode protection |
-
2019
- 2019-04-26 CN CN201910343756.9A patent/CN109877305A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6146345A (en) * | 1984-08-08 | 1986-03-06 | Kobe Steel Ltd | Combustion preventive treatment for heat insulating sleeve in riser part for casting mg alloy |
| JP2004243407A (en) * | 2003-02-17 | 2004-09-02 | Sumitomo Metal Ind Ltd | Method of continuously casting molten magnesium alloy |
| JP2006334610A (en) * | 2005-05-31 | 2006-12-14 | Toyota Motor Corp | Method for preventing combustion of molten metal, method for producing casting, and magnesium alloy casting |
| CN101176914A (en) * | 2006-11-10 | 2008-05-14 | 宝山钢铁股份有限公司 | Method for preventing cast steel stove continuous casting water gap from obstruction and reducing erosion |
| CN103331305A (en) * | 2013-06-07 | 2013-10-02 | 中南大学 | Method for asymmetric sink-type cast-rolling preparation of magnesium alloy strip under action of composite energy field |
| CN106001133A (en) * | 2016-07-16 | 2016-10-12 | 太原科技大学 | Conveying rollgangs with cathodic protection for bare pendent electric wires |
| CN106040755A (en) * | 2016-07-16 | 2016-10-26 | 太原科技大学 | Cathode protection conveying roller way provided with electric conduction carrier rollers |
| CN209849874U (en) * | 2019-04-26 | 2019-12-27 | 太原科技大学 | Magnesium alloy casting ladle device with cathode protection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523957A (en) * | 2019-10-14 | 2019-12-03 | 哈尔滨工业大学 | A kind of magnesium lithium alloy casting mold and casting method |
| CN110523957B (en) * | 2019-10-14 | 2020-12-11 | 哈尔滨工业大学 | Casting mold and casting method for magnesium-lithium alloy casting |
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