CN110218922A - Production method, system of processing and the Mg alloy castings of Mg alloy castings - Google Patents
Production method, system of processing and the Mg alloy castings of Mg alloy castings Download PDFInfo
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- CN110218922A CN110218922A CN201910641416.4A CN201910641416A CN110218922A CN 110218922 A CN110218922 A CN 110218922A CN 201910641416 A CN201910641416 A CN 201910641416A CN 110218922 A CN110218922 A CN 110218922A
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- 238000005266 casting Methods 0.000 title claims abstract description 118
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 115
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000012545 processing Methods 0.000 title claims abstract description 11
- 238000004512 die casting Methods 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000003723 Smelting Methods 0.000 claims abstract description 11
- 239000011777 magnesium Substances 0.000 claims abstract description 10
- 239000000470 constituent Substances 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract description 21
- 230000007547 defect Effects 0.000 abstract description 21
- 229910045601 alloy Inorganic materials 0.000 abstract description 20
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- 238000007711 solidification Methods 0.000 description 6
- 230000008023 solidification Effects 0.000 description 6
- 238000013467 fragmentation Methods 0.000 description 5
- 238000006062 fragmentation reaction Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010201 enrichment analysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The present invention relates to alloy die cast technical fields, the production method, system of processing and Mg alloy castings of a kind of Mg alloy castings are specifically disclosed, the production method includes: preparation magnesium alloy, and the constituent of the magnesium alloy includes the Be that the Al of Mg, quality accounting no more than 9.2% and quality accounting are not more than 0.0007%；By magnesium alloy smelting at liquid magnesium alloy, keep the temperature to be poured；Casting is molded between 630 DEG C~730 DEG C, is sequentially completed a liter liquid, is filled type, pressurization, pressure maintaining, Liu Mo and release；Magnesium alloy ingot is taken out in die sinking；The die casting that magnesium alloy ingot is put into 250 DEG C~280 DEG C is subjected to die casting, obtains Mg alloy castings.Production method, system of processing and the Mg alloy castings of Mg alloy castings provided by the invention can be reduced the die casting fire check defect of Mg alloy castings, improve the mechanical property of casting, reduce the scrappage of product.
Description
Technical field
The present invention relates to alloy die cast technical field more particularly to a kind of production methods of Mg alloy castings, system of processing
And Mg alloy castings.
Background technique
Magnesium alloy is metal most light in practical application because its density is smaller, and intensity with higher, specific strength are high, subtract
The characteristics such as shock stability is good, electrical and thermal conductivity performance is good, the corrosive nature of resistance to organic matter and alkali is good have been widely used in aviation boat
It, automobile manufacture, the industries such as chemical equipment.
Since magnesium alloy itself plasticity is high, there is high flowing mold-filling capacity in the molten state, which makes magnesium
Alloy die cast forms can play the excellent properties of material to greatest extent, thus magnesium alloy pressure-casting manufacturing process obtained it is biggish
Progress also promotes flourishing for magnesium alloy pressure-casting industry.But at present in magnesium alloy pressure-casting industry, because material quality is poor, pressure
Often there are numerous defects in the problems such as casting production process is also immature, magnesium alloy pressure-casting component, and wherein fire check is the most fatal
Product defects seriously affect the safe handling of Mg alloy castings, greatly reduce the mechanical property of casting, lead to casting report
Useless rate is high.
Therefore, it is necessary to propose corresponding technique contrast aiming at the problem that Mg alloy castings fire check defect.
Summary of the invention
It is an advantage of the invention to provide the castings of a kind of production method of Mg alloy castings, system of processing and magnesium alloy
Part can be reduced the die casting fire check defect of Mg alloy castings, improve the mechanical property of casting, reduce the scrappage of product.
To achieve these objectives, the present invention provides a kind of production method of Mg alloy castings, comprising:
Magnesium alloy is prepared, the constituent of the magnesium alloy includes that the Al of Mg, quality accounting no more than 9.2% and quality account for
Than the Be for being not more than 0.0007%；
By magnesium alloy smelting at liquid magnesium alloy, keep the temperature to be poured；
Casting is molded between 630 DEG C~730 DEG C, is sequentially completed a liter liquid, is filled type, pressurization, pressure maintaining, Liu Mo and release；
Magnesium alloy ingot is taken out in die sinking；
The die casting that magnesium alloy ingot is put into 250 DEG C~280 DEG C is subjected to die casting, obtains Mg alloy castings.
Preferably, the magnesium alloy by Mg, quality accounting be 9.2% Al, 0.65% Zn, 0.2% Mn,
0.002% Fe, 0.01% Cu, the Ni less than 0.001%, 0.01% Si and 0.0007% Be composition.
Preferably, the heat preservation is to be poured specifically:
It is kept the temperature in the temperature range higher than 20 DEG C~30 DEG C of liquid magnesium alloy phase line.
Preferably, described that casting is molded between 630 DEG C~730 DEG C, it is sequentially completed a liter liquid, type is filled, pressurization, pressure maintaining, stays
Mould and release specifically:
It is poured in 660 DEG C of moldings, is sequentially completed a liter liquid, fills type, pressurization, pressure maintaining, Liu Mo and release.
Preferably, the mould remaining time for staying die process is 3s.
Preferably, the die casting that magnesium alloy ingot is put into 250 DEG C~280 DEG C carries out die casting, obtains magnesium alloy casting
Before part, further includes:
Heating preheating is carried out to magnesium alloy ingot.
It is preferably, described that heating preheating is carried out to magnesium alloy ingot specifically:
Heating is carried out to magnesium alloy ingot and is preheated to 250 DEG C.
Preferably, it is described by magnesium alloy smelting at liquid magnesium alloy, keep the temperature it is to be poured before, further includes:
Smelting furnace is cleaned, impurity residual is reduced.
On the other hand, the present invention provides a kind of Mg alloy castings system of processing, for executing any of the above-described kind of production method.
Another aspect, the present invention provide a kind of Mg alloy castings, by any of the above-described kind of production method production gained.
The beneficial effects of the present invention are: production method, system of processing and the magnesium alloy casting of a kind of Mg alloy castings are provided
Part can be reduced the die casting fire check defect of Mg alloy castings, improve the mechanical property of casting, reduce the scrappage of product.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow diagram of the production method for the Mg alloy castings that embodiment provides.
In figure:
Specific embodiment
To enable the purpose of the present invention, feature, advantage more obvious and understandable, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that reality disclosed below
Applying example is only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that, when a component is considered as " connection " another component, it can
To be directly to another component or may be simultaneously present the component being centrally located.When a component is considered as " setting
Set " another component, it, which can be, is set up directly on another component or may be simultaneously present the component being centrally located.
In addition, the indicating positions such as term " length " " short " "inner" "outside" or positional relationship for the orientation that is shown based on attached drawing or
Person's positional relationship is merely for convenience of the description present invention, rather than the device or original part of indication or suggestion meaning must have this
Specific orientation is operated with specific orientation construction, should not be understood as limitation of the invention with this.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
The present embodiment provides a kind of Mg alloy castings systems of processing, and a kind of production method of Mg alloy castings is used to produce
Mg alloy castings out can be reduced the die casting fire check defect of Mg alloy castings, improve the mechanical property of casting, reduce the report of product
Useless rate.
Generation for Mg alloy castings fire check defect, at present it has been recognized that by solidification shrinkage amount, shrinking and being obstructed
Caused by hindering three factors such as degree and feeding capacity.But also there is research to think, when near alloy graining to phase solidus line temperature,
Cause one " impact stress " because of " impact is shunk ", so as to cause the generation of fire check defect.The present embodiment passes through long-term
Practice summary and the anatomy generated to Mg alloy castings fire check defect learn that the appearance of fire check phenomenon is opened in linear shrinkage
In beginning temperature to effective crystallization range of solidus, in alloy graining process, because of castings material, casting structure shape etc.
Reason, cooling velocity can be inconsistent everywhere for casting, has part first to solidify so as to cause casting, and the part of solidification can hinder not yet to coagulate
Solid position shunk, to generate shrinkage stress, when the stress or plastic deformation be more than Mg alloy castings at such a temperature
Strength degree and when elongation, casting will produce heat crack defect in thermal center.
Since a large amount of impurity is enriched in grain boundaries, so that the intensity of grain boundaries and plasticity reduce, the fusing point of impurity is general
Lower, in casting cooled and solidified, the shrinkage stress that grain boundaries generate is greater than the tensile strength of alloy, leads to grain boundaries fire check
It is formed, so that casting is produced fracture in crack position, fatal damage is caused to casting strength.
Mg alloy castings fire check defect, which is formed, mainly to be received by raw material alloy ingredient, cast shape, die-casting process, solidification
The influence of the reasons such as contracting amount and freezing problem gradient.In order to improve the generation of casting thermal fragmentation line phenomenon, fire check is reduced
Probability, the present embodiment mainly from alloy raw material ingredient, alloy pouring temperature, mould remaining time and die casting temperature etc. come
Improve the die casting fire check defect of Mg alloy castings.
Specifically, referring to Fig. 1, the production method of Mg alloy castings includes:
S10: preparing magnesium alloy, and the constituent of the magnesium alloy includes the Al and matter of Mg, quality accounting no more than 9.2%
Measure the Be that accounting is not more than 0.0007%.
The die casting performance of Mg alloy castings and process flow and alloy raw material quality have direct relationship, die casting
Service performance is determined by alloy raw material quality to a certain extent, so material composition contained by alloy should be strict controlled in rule
In fixed range, the requirement of Mg alloy castings materials quality can be met in this way.The generation of Mg alloy castings fire check defect,
It is due to containing impurity in alloy raw material, is impurity enriched region at crackle generation, the presence of impurity will have a direct impact on pressure
The consistency of casting fills type feeding capacity deficiency to reduce casting strength, while impurity can also make casting plasticity be deteriorated,
Easily lead to the generation of fire check.Al constituent content is the key that cause fire check in magnesium alloy, and Al content is excessive, can make alloy
A possibility that setting temperature increases, and casting generates fire check defect increases, and phase trans contents are very few, influence whether the usability of casting
Can, reduce its mechanical property.Therefore the reasonable control to Al constituent content improves magnesium to casting thermal fragmentation line occurrence probability is reduced
Alloy die cast performance and casting product quality play the role of vital.In addition, production practices demonstrate Be in magnesium alloy
Element, which suitably adds, can be obviously improved casting thermal fragmentation line defect phenomenon, but excessive addition Be element does not meet ROHS environmental protection and wants
It asks, and is unsatisfactory for procedure for producing requirement, therefore the number of Be constituent content also strictly will be controlled scientifically.Qualification used herein
The material composition of magnesium alloy ingot is as shown in table 1.
The quality of materials ingredient (%) of 1 magnesium alloy ingot of table
S20: cleaning smelting furnace, reduces impurity residual.
It is understood that in order to avoid remaining flux and oxidation impurities are more because of long-time use for smelting furnace, Hai Xuding
Phase cleans smelting furnace, and reducing impurity component influences the possibility that casting thermal fragmentation line generates.
S30: it by magnesium alloy smelting at liquid magnesium alloy, keeps the temperature to be poured.
Specifically, it is kept the temperature in the temperature range higher than 20 DEG C~30 DEG C of liquid magnesium alloy phase line.
What alloy pouring temperature indicated is the mean temperature that molten metal enters type mold cavity from pressure chamber, usually uses holding furnace
Interior temperature expression, generally greater than 20~30 DEG C of aluminium alloy phase line.
S40: casting is molded between 630 DEG C~730 DEG C, a liter liquid is sequentially completed, fills type, pressurization, pressure maintaining, Liu Mo and unload
Pressure.
For the casting of different shape, structure, pouring temperature when magnesium alloy pressure-casting should be controlled at 630~730 DEG C.For
Thin-section casting, pouring temperature can use higher temperature, to improve the mobility of molten metal, improve die cast ability；For
Lower temperature then can be used in thick-walled casting, to reduce shrinkage cavity caused by solidification shrinkage and shrinkage porosite.Pouring temperature is excessively high, gold
Belong to the oxidizable aggravation of liquid, oxidation impurities are mixed into excessively, reduce casting compactness and plasticity, and alloy shrinkage is big, die casting is easy
Generate fire check；The defects of pouring temperature is too low, is also easy to produce cold shut, surface flow liner and misrun.Magnesium alloy in the present embodiment
Pouring temperature is set as 660 DEG C, can obtain preferably performance.
Mould remaining time is the major reason that casting generates contraction crack, and referring to terminates from pressure maintaining up to die sinking ejection casting
This period.Mould remaining time is abundant, so that casting is fully cooled solidification in mold, is conducive to improve casting strength, reduces casting
Part is deformed and the possibility of drawing crack.But mould remaining time is too long, then not only reduces castings production efficiency, is also easy to cause demoulding tired
Difficulty, alloy cause fire check because hot-short, have changed simultaneously the design shrinkage of casting.Therefore, usually indeformable, no with casting
The shortest time of cracking as the selection of mould remaining time, not only can guarantee casting quality, but also can improve production effect to the maximum extent
Rate.Mould remaining time used by the present embodiment is 3s, to obtain preferably mechanical property.
S50: magnesium alloy ingot is taken out in die sinking.
It should be noted that can also carry out the routine operation such as being heat-treated to U.S. alloy pig, details are not described herein again.
S60: heating preheating is carried out to magnesium alloy ingot.
Specifically, heating is carried out to magnesium alloy ingot and is preheated to 250 DEG C.
In order to ensure mold temperature is stablized, except rationally controlling mold temperature, it is also noted that preventing because adding new magnesium
Furnace temperature reduces when alloy material, avoids result in die casting initial stage mold temperature and fluctuates, so magnesium alloy ingot will be
It is preheated on holding furnace.
S70: the die casting that magnesium alloy ingot is put into 250 DEG C~280 DEG C is subjected to die casting, obtains Mg alloy castings.
Die casting is moulding process equipment mostly important in technical process for casting, and the stabilization of die casting temperature is right
Casting quality, production efficiency and die life have direct influence.Die casting temperature is unstable, be easy to cause casting
Part size is unstable, and casting is easy to produce the generation for the defects of deforming so as to cause crackle, shrinkage cavity, sticking to mould, surface indentation.Die casting
When mold temperature is excessively high, casting can extend cooling time, reduce castings production efficiency, the intensity and plasticity of material will appear at this time
Decline, is easy to cause the generation of fire check；And die casting temperature it is too low when, die casting can be made to generate during cooled and solidified
Biggish temperature gradient, casting solidification speed is accelerated, so that quickly solidified at the thin-walled of die casting, and at the heavy wall far from running channel
Feeding is insufficient and generates shrinkage cavity, so that the generation for fire check provides condition.In addition, die casting temperature is unstable, Yi Zao
At mold due to expanding with heat and contract with cold for chronicity premature failure, substantially reduce die life, improve enterprise operation cost.This
Embodiment is by practical experience it is found that mold controls temperature preferably between 250~280 DEG C.
Fire check defect is magnesium alloy die casting bad defect the most outstanding, and the factor for influencing its generation is complex,
The present embodiment proposes corresponding process improving countermeasure by analyzing the fire check origin cause of formation, can be concluded that
1. in raw material magnesium alloy or casting process, impurity is mixed into so that impurity causes alloying component inclined in grain boundaries enrichment
Analysis provides condition for fire check formation.
2. alloy raw material ingredient influences casting quality the most obvious.Be rigid in checking up the quality of magnesium alloy ingot, selects and closes
The magnesium alloy ingot of lattice, and in foundry production, strict control magnesium alloy impurity is mixed into, and reinforces casting quality from source
Control.
3. the stringent control of die-casting technological parameter can drop various factors in casting process to the influence that fire check generates
To minimum, the generation of reduction casting thermal fragmentation line phenomenon, the technological parameter especially to play a key effect to fire check formation is such as pressed
Casting mould temperature, alloy pouring temperature and mould remaining time etc..
The present embodiment provides a kind of production method of Mg alloy castings, system of processing and Mg alloy castings, can be reduced magnesium conjunction
The die casting fire check defect of golden casting, improves the mechanical property of casting, reduces the scrappage of product.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of production method of Mg alloy castings characterized by comprising
Prepare magnesium alloy, the constituent of the magnesium alloy include Mg, quality accounting no more than 9.2% Al and quality accounting not
Be greater than 0.0007%；
By magnesium alloy smelting at liquid magnesium alloy, keep the temperature to be poured；
Casting is molded between 630 DEG C~730 DEG C, is sequentially completed a liter liquid, is filled type, pressurization, pressure maintaining, Liu Mo and release；
Magnesium alloy ingot is taken out in die sinking；
The die casting that magnesium alloy ingot is put into 250 DEG C~280 DEG C is subjected to die casting, obtains Mg alloy castings.
2. the production method of Mg alloy castings according to claim 1, which is characterized in that the magnesium alloy is by Mg, quality
Accounting be 9.2% Al, 0.65% Zn, 0.2% Mn, 0.002% Fe, 0.01% Cu, the Ni less than 0.001%,
The Be of 0.01% Si and 0.0007% is formed.
3. the production method of Mg alloy castings according to claim 1, which is characterized in that the heat preservation is to be poured specifically:
It is kept the temperature in the temperature range higher than 20 DEG C~30 DEG C of liquid magnesium alloy phase line.
4. the production method of Mg alloy castings according to claim 1, which is characterized in that it is described 630 DEG C~730 DEG C it
Between mold casting, be sequentially completed a liter liquid, fill type, pressurization, pressure maintaining, Liu Mo and release specifically:
It is poured in 660 DEG C of moldings, is sequentially completed a liter liquid, fills type, pressurization, pressure maintaining, Liu Mo and release.
5. the production method of Mg alloy castings according to claim 1, which is characterized in that described to stay when staying mould of die process
Between be 3s.
6. the production method of Mg alloy castings according to claim 1, which is characterized in that described to be put into magnesium alloy ingot
250 DEG C~280 DEG C of die casting carries out die casting, before obtaining Mg alloy castings, further includes:
Heating preheating is carried out to magnesium alloy ingot.
7. the production method of Mg alloy castings according to claim 6, which is characterized in that described to add to magnesium alloy ingot
Temperature preheating specifically:
Heating is carried out to magnesium alloy ingot and is preheated to 250 DEG C.
8. the production method of Mg alloy castings according to claim 1, which is characterized in that it is described by magnesium alloy smelting at magnesium
Aluminium alloy, before heat preservation is to be poured, further includes:
Smelting furnace is cleaned, impurity residual is reduced.
9. a kind of Mg alloy castings system of processing, which is characterized in that require 1~8 described in any item productions for perform claim
Method.
10. a kind of Mg alloy castings, which is characterized in that produce gained by production method according to any one of claims 1 to 8.
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| CN201910641416.4A CN110218922A (en) | 2019-07-16 | 2019-07-16 | Production method, system of processing and the Mg alloy castings of Mg alloy castings |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255335A (en) * | 2022-08-29 | 2022-11-01 | 盘星新型合金材料(常州)有限公司 | Method for producing consumer electronic components using pre-embedded composites and use |
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- 2019-07-16 CN CN201910641416.4A patent/CN110218922A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255335A (en) * | 2022-08-29 | 2022-11-01 | 盘星新型合金材料(常州)有限公司 | Method for producing consumer electronic components using pre-embedded composites and use |
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Application publication date: 20190910 |