CN106994505A - Almag die casting sand hole solution - Google Patents
Almag die casting sand hole solution Download PDFInfo
- Publication number
- CN106994505A CN106994505A CN201710265358.0A CN201710265358A CN106994505A CN 106994505 A CN106994505 A CN 106994505A CN 201710265358 A CN201710265358 A CN 201710265358A CN 106994505 A CN106994505 A CN 106994505A
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- CN
- China
- Prior art keywords
- die casting
- sand hole
- almag
- hole solution
- casting sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/32—Controlling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The present invention relates to a kind of almag die casting sand hole solution, it comprises the following steps：First, running gate system, Exhausting System vortex control.Afterwards, the temperature to die casting carries out management and control.Then, die casting nitrogen pressure is detected.Then, detection die casting surface, according to stomata characteristics, carries out second-order correction.Finally, runner system volume gas and exhaust are optimized, and realizes that die cavity volume gas optimizes.Thus, actual emulation effect is realized by MAGAM softwares, improves design intuitive.Can gas extraction system cinder ladle can reasonably be discharged, exhaust block realizes product smooth in exhaust, it is to avoid sand hole problem according to the structure of of product itself.Also, press casting procedure also uses analog simulation, to a settle practice is hard to reform the flow field of mold filling process of casting simulation, prediction volume gas situation in shooting cylinder, running channel and die cavity.
Description
Technical field
The present invention relates to a kind of almag die casting optimization method, more particularly to a kind of almag die casting sand hole solution party
Method.
Background technology
Almag is that the advantage applied to compression casting includes height in recent years extensively by the emerging alloy material of World Focusing
Productivity ratio, high-precision, good surface quality, can be with die casting thin-walled and the product of labyrinth.But carried out using almag
Compression casting still haves the shortcomings that can not be ignored, such as due to high liquid filling speed and setting rate, easily produces volume
Enter gas；Casting can not be too thick, and wall thickness can only be confined to certain size etc..Applied in current Die Casting is at most that aluminium is closed
Gold and magnesium alloy, but all there is obvious deficiency in both alloys, and these deficiencies limit development and the pressure of Die Casting Industry
The application of casting.With the development in market, part is wanted to hydronalium performance, product structure and Process Design and control
Ask more strict, the requirement to die casting is also more and more stricter.Often because of the presence of stomata in alloy die cast production, cause material
Scrap, currently for the defect of die casting stomata, die casting machine, the design of mould early stage, computer simulation analysis, software can be passed through
The modes such as Optimum Experiment research are solved.Die casting stomata, shrinkage cavity and cinder hole defect occur, in cast-internal, to produce defect
Reason is not quite similar.Die Casting Industry to the type of sand hole, formed the reason for and corresponding solution formation have it is very urgent
Demand.
In view of above-mentioned defect, the design people is actively subject to research and innovation, to found a kind of almag die casting sand
Hole solution, makes it with more the value in industry.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of almag die casting sand hole solution.
The almag die casting sand hole solution of the present invention, it comprises the following steps：Step one：Running gate system, overflowing
System vortex control.Step 2：Temperature to die casting carries out management and control.Step 3：Detect die casting nitrogen pressure.Step 4：
Die casting surface is detected, according to stomata characteristics, second-order correction is carried out.Step 5：Runner system volume gas and exhaust are optimized.
Step 6：Die cavity volume gas optimizes.
Further, above-mentioned almag die casting sand hole solution, wherein, the step one during die casting, makes
Multiply running channel is used, makes aluminium liquid stream be consistent with casting direction, during multiply running channel is filled, is entered using filling mode simultaneously
OK.
Further, above-mentioned almag die casting sand hole solution, wherein, in the step 2, mould preheating
Temperature is 150 DEG C~180 DEG C, and work keeping temperature is 220 DEG C~280 DEG C.
Further, above-mentioned almag die casting sand hole solution, wherein, in the step 3, mould preheating
Temperature is 170 DEG C, and work keeping temperature is 260 DEG C.
Further, above-mentioned almag die casting sand hole solution, wherein, in the step 4, by calculating
Machine acquisition testing die casting surface state, by analysis, obtains stomatal limiting value reason, and use corresponding treatment measures.
Further, above-mentioned almag die casting sand hole solution, wherein, in the step 4, pass through MAGAM
Mould stream software participates in analysis.
Further, above-mentioned almag die casting sand hole solution, wherein, in the step 5, according to processing
Demand, curve and the corresponding design of size progress to running channel make molten metal smooth flow in whole cavity filling process.
Further, above-mentioned almag die casting sand hole solution, wherein, in the step 6, die cavity is set
Z-type is calculated as, or the overflow launder rear end on fan-shaped exhaust, the die joint of the die cavity is set at die cavity edge, exhaust is provided with
Groove.
Yet further, above-mentioned almag die casting sand hole solution, wherein, in the step 6, on die cavity
Independent exhaust duct is set, and the exhaust duct is tooth form exhaust duct.
By such scheme, the present invention at least has advantages below：
1st, actual emulation effect is realized by MAGAM softwares, improves design intuitive.
2nd, gas extraction system can reasonably discharge cinder ladle according to the structure of of product itself, and exhaust block realizes that product exhaust is suitable
Freely, it is to avoid sand hole problem.
3rd, press casting procedure also uses analog simulation, to a settle practice is hard to reform the flow field of mold filling process of casting simulation, prediction shooting cylinder,
Volume gas situation in running channel and die cavity.The numerical simulation of Mold Filling Process, can help technical staff in the casting technique stage pair
The time of various volume gas pressure sizes, position and generation that casting is likely to occur effectively is predicted, so as to optimize founder
Skill is designed, it is ensured that the quality of casting, shortens the trial-production cycle, reduces production cost.
4th, foundation, which is actually needed, can adjust die parameters, it is ensured that Exhausting System effectively works.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, described in detail below with presently preferred embodiments of the present invention as after.
Embodiment
With reference to embodiment, the embodiment to the present invention is described in further detail.Following examples are used for
Illustrate the present invention, but be not limited to the scope of the present invention.
Almag die casting sand hole solution, it, which is particular in that, comprises the following steps：
Step one：Running gate system, Exhausting System vortex control.Specifically, during die casting, multiply running channel, order are used
Aluminium liquid stream is consistent with casting direction.So, aluminium liquid stream can be made not collide with each other, vortex will not be produced and because filling is chaotic
Cause volume gas.Meanwhile, during multiply running channel is filled, carried out using filling mode simultaneously.In other words, it is impossible to allow one or it is several
Stock aluminium liquid, which is arrived first, returns again to generation vortex behind rearmost end dead angle.When actually implementing, slag trap and exhaust on compression mod
Road distribution will be made rational planning for according to casting product.
Step 2：Temperature to die casting carries out management and control.During this period, mold preheating temperature is 150 DEG C~180 DEG C,
The keeping temperature that works is 220 DEG C~280 DEG C.Meanwhile, entered after multiple comparison test find, when mold preheating temperature be 170 DEG C,
When the keeping temperature that works is 260 DEG C, the die casting manufacture needs of most of workpiece can be met.The reason is that die casting
Temperature also has the influence of key to the quality and stomata of casting.When mould temperature is too high, releasing agent volatilizees at high temperature is unable to shape
Into fine and close epithelium, mucous membrane is easily caused；And mould temperature is too low, then the epithelium of releasing agent formation has non-volatile moisture, imitates the demoulding
It is really poor, cause bleb.
Step 3：Detect die casting nitrogen pressure.In practical operation, the relatively low exception of nitrogen pressure can be obtained by detecting
Situation, such case often brings mold parting surface to have slight run to expect, causes several strands of running channels to produce vortex, finally in planar shaped
Into stomata.So, the porosity has obtained effective control, reaches within 4%.Bleb produces and controlled the method for stomata, real
Different technological parameters should be also selected according to different casting in the production of border.It is how rational according to the selection of casting actual conditions
Technological parameter in actual production, it is necessary to empirically judge.
Step 4：Die casting surface is detected, according to stomata characteristics, second-order correction is carried out.Meanwhile, coordinated by computer
MAGAM mould stream softwares, acquisition testing die casting surface state, by analysis, obtains stomatal limiting value reason, and use corresponding place
Reason measure.Also, during actually implementing, start with from inspection die casting defect, according to stomata characteristics, determine the kind of venthole
Class.Meanwhile, investigated and analysed by computer simulation analysis and corresponding field process, be easy to lookup to form stomata reason.Propose
The corresponding methods of the various gas hole defects of solution, mitigates or prevents gas hole defect.
Step 5：Runner system volume gas and exhaust are optimized.During this period, it is necessary to according to the demand of processing, to pouring
The curve in road and the corresponding design of size progress, make molten metal smooth flow in whole cavity filling process.The reason is that in reality
Period, molten metal changes under 64~160km/h speed, once running into and pouring road shape, and impulse force can make molten metal produce whirlpool
Whirlpool, causes to produce volume gas gas hole defect.
Step 6：Die cavity volume gas optimizes.In order to which from sand hole is at utmost prevented, cavity design is Z-type by the present invention,
Or setting sector to be vented at die cavity edge, the overflow launder rear end on the die joint of die cavity is provided with air discharge duct.Meanwhile, in type
Independent exhaust duct is set on chamber, and exhaust duct is tooth form exhaust duct.The reason is that tooth form exhaust duct has good exhaust effect
Really, during mold design, preferably ensure at least there is a tooth form exhaust duct.Also, overflow launder and air discharge duct are generally located on liquid
The last filling position of state metal, can determine the position by mold flow analysis, while ensureing enough exhaust sizes.
It is can be seen that by above-mentioned character express using after the present invention, gather around and have the following advantages：
1st, actual emulation effect is realized by MAGAM softwares, improves design intuitive.
2nd, gas extraction system can reasonably discharge cinder ladle according to the structure of of product itself, and exhaust block realizes that product exhaust is suitable
Freely, it is to avoid sand hole problem.
3rd, press casting procedure also uses analog simulation, to a settle practice is hard to reform the flow field of mold filling process of casting simulation, prediction shooting cylinder,
Volume gas situation in running channel and die cavity.The numerical simulation of Mold Filling Process, can help technical staff in the casting technique stage pair
The time of various volume gas pressure sizes, position and generation that casting is likely to occur effectively is predicted, so as to optimize founder
Skill is designed, it is ensured that the quality of casting, shortens the trial-production cycle, reduces production cost.
4th, foundation, which is actually needed, can adjust die parameters, it is ensured that Exhausting System effectively works.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (9)
1. almag die casting sand hole solution, it is characterised in that comprise the following steps：
Step one：Running gate system, Exhausting System vortex control；
Step 2：Temperature to die casting carries out management and control；
Step 3：Detect die casting nitrogen pressure；
Step 4：Die casting surface is detected, according to stomata characteristics, second-order correction is carried out；
Step 5：Runner system volume gas and exhaust are optimized；
Step 6：Die cavity volume gas optimizes.
2. almag die casting sand hole solution according to claim 1, it is characterised in that：The step one, in pressure
During casting, using multiply running channel, aluminium liquid stream is made to be consistent with casting direction, during multiply running channel is filled, using filling out simultaneously
The mode of filling is carried out.
3. almag die casting sand hole solution according to claim 1, it is characterised in that：In the step 2, mould
It is 150 DEG C~180 DEG C to have preheating temperature, and work keeping temperature is 220 DEG C~280 DEG C.
4. almag die casting sand hole solution according to claim 3, it is characterised in that：In the step 3, mould
It is 170 DEG C to have preheating temperature, and work keeping temperature is 260 DEG C.
5. almag die casting sand hole solution according to claim 1, it is characterised in that：In the step 4, lead to
Computer acquisition detection die casting surface state is crossed, by analysis, stomatal limiting value reason is obtained, and arrange using corresponding processing
Apply.
6. almag die casting sand hole solution according to claim 5, it is characterised in that：In the step 4, lead to
Cross MAGAM mould streams software and participate in analysis.
7. almag die casting sand hole solution according to claim 1, it is characterised in that：In the step 5, root
According to the demand of processing, curve and the corresponding design of size progress to running channel make molten metal smooth flow in whole cavity filling process.
8. almag die casting sand hole solution according to claim 1, it is characterised in that：, will in the step 6
Cavity design is Z-type, or sets the overflow launder rear end on fan-shaped exhaust, the die joint of the die cavity at die cavity edge, is set
There is air discharge duct.
9. almag die casting sand hole solution according to claim 1, it is characterised in that：In the step 6,
Independent exhaust duct is set on die cavity, and the exhaust duct is tooth form exhaust duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265358.0A CN106994505A (en) | 2017-04-21 | 2017-04-21 | Almag die casting sand hole solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265358.0A CN106994505A (en) | 2017-04-21 | 2017-04-21 | Almag die casting sand hole solution |
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| Publication Number | Publication Date |
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| CN106994505A true CN106994505A (en) | 2017-08-01 |
Family
ID=59434150
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710265358.0A Pending CN106994505A (en) | 2017-04-21 | 2017-04-21 | Almag die casting sand hole solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620562A (en) * | 2018-05-21 | 2018-10-09 | 苏州春兴精工股份有限公司 | Communication high-frequency microwave radiator production technology |
Citations (5)
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|---|---|---|---|---|
| JPS51125630A (en) * | 1975-04-25 | 1976-11-02 | Mitsubishi Heavy Ind Ltd | Metal casting method |
| CN101758196A (en) * | 2008-10-24 | 2010-06-30 | 吴江市天龙机械有限公司 | Process method for reducing immersion type pores of aluminum alloy die casting parts |
| CN101758197A (en) * | 2008-10-24 | 2010-06-30 | 吴江市天龙机械有限公司 | Process method for reducing involvement type pores of aluminum alloy die casting parts |
| CN101760633A (en) * | 2008-10-24 | 2010-06-30 | 吴江市天龙机械有限公司 | Five process methods for reducing precipitation type pores of aluminum alloy die casting parts |
| CN103567413A (en) * | 2013-09-30 | 2014-02-12 | 胜赛思精密压铸（扬州）有限公司 | Die-casting device for solving air hole defect of die-casting product and die-casting process thereof |
-
2017
- 2017-04-21 CN CN201710265358.0A patent/CN106994505A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51125630A (en) * | 1975-04-25 | 1976-11-02 | Mitsubishi Heavy Ind Ltd | Metal casting method |
| CN101758196A (en) * | 2008-10-24 | 2010-06-30 | 吴江市天龙机械有限公司 | Process method for reducing immersion type pores of aluminum alloy die casting parts |
| CN101758197A (en) * | 2008-10-24 | 2010-06-30 | 吴江市天龙机械有限公司 | Process method for reducing involvement type pores of aluminum alloy die casting parts |
| CN101760633A (en) * | 2008-10-24 | 2010-06-30 | 吴江市天龙机械有限公司 | Five process methods for reducing precipitation type pores of aluminum alloy die casting parts |
| CN103567413A (en) * | 2013-09-30 | 2014-02-12 | 胜赛思精密压铸（扬州）有限公司 | Die-casting device for solving air hole defect of die-casting product and die-casting process thereof |
Non-Patent Citations (2)
| Title |
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| 国际铸业咨询: "浅谈压铸件气孔的成因和解决方法", 《百度文库》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620562A (en) * | 2018-05-21 | 2018-10-09 | 苏州春兴精工股份有限公司 | Communication high-frequency microwave radiator production technology |
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Application publication date: 20170801 |