CN110355344A - A kind of thin-walled pack alloy structural member running gate system - Google Patents
A kind of thin-walled pack alloy structural member running gate system Download PDFInfo
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- CN110355344A CN110355344A CN201910800566.5A CN201910800566A CN110355344A CN 110355344 A CN110355344 A CN 110355344A CN 201910800566 A CN201910800566 A CN 201910800566A CN 110355344 A CN110355344 A CN 110355344A
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- ingate
- reducing type
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- thin
- structural member
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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
Abstract
The invention discloses a kind of thin-walled pack alloy structural member running gate systems, including several demoulding mandrils, sprue, reducing type cross gate, multiple pectination ingates and multiple reducing type ingates, the cross gate is connected to sprue, the molten metal of the pectination ingate flows into end and is connected with reducing type cross gate, outflow end is connected to reducing type ingate, the ingate other end is connected to the type chamber of mold where running gate system, is distributed several overflow launders and exhaust duct in type cavity edge.This running gate system common running gate systems such as tree-shaped that compare use reducing type cross gate, the design of pectination ingate and reducing type ingate, it can make that the medium-sized intracavitary melt confluence of cavity filling process is less, it is good to fill type sequence, effectively avoid thin-wall aluminum alloy structural member in cavity filling process, type is intracavitary to generate unnecessary volume gas and oxide inclusion defect, it improves the quality of casting, be easy to improve the product yield of casting, can be widely applied in various Die Castings.
Description
Technical field
The invention belongs to mould design and manufacture technical field more particularly to a kind of thin-walled pack alloy structural member casting systems
System.
Background technique
Die casting refers to fills mold cavity for molten metal under high pressure, high-speed condition, and is cooled and shaped under high pressure, is formed
The casting method of required parts product is heat processing and forming side most widely used, with the fastest developing speed in each technique of casting
One of method.Die casting has adapted to the demands such as the manufacturing product lightweight of modernization, precise treatment as a kind of rapid prototyping technology.
As the manufacturing continuous development of aluminium alloy is stepped up with lightweight demand, a large amount of components are by steel construction used at present
Part is replaced aluminum alloy junction component.While aluminum alloy junction component use scope is gradually expanded, wanted along with to its quality
The raising asked, especially being gradually increased to the mechanical property standard of thin-wall aluminum alloy structural member, the stability of mechanical property
Often directly determine the quality of product.Thin-wall aluminum alloy structural member can not conforming to due to Design of Runner System in press casting procedure
The filling velocity of reason or ingate is inconsistent to be caused to be filled with the intracavitary melt composition turbulent flow of type, eventually leads to the volume gas generated in part
And oxide inclusion, significant impact is generated to the mechanical property of casting quality especially casting.
Summary of the invention
In view of the deficienciess of the prior art, the present invention provides a kind of thin-walled pack alloy structural member running gate system, tool
Have that manufacture difficulty is low, can reduce mold complexity, low to die casting machine tonnage demand and can guarantee the thin-wall aluminum alloy structural member
The advantages of quality, to solve the problems, such as the volume gas generated in the cavity filling process encountered in the prior art and oxide inclusion.
A kind of thin-walled pack alloy structural member running gate system, it is characterised in that: including several demoulding mandrils, directly pour
Road, reducing type cross gate, multiple pectination ingates and multiple reducing type ingates, the reducing type cross gate and sprue connect
Logical, the molten metal of the pectination ingate flows into end and is connected with reducing type cross gate, and outflow end is connected to reducing type ingate,
The reducing type ingate other end is connected to the type chamber of mold where running gate system, is distributed several overflow launders and exhaust in type cavity edge
Road.
Die casting where a kind of thin-walled pack alloy structural member running gate system includes preceding mould and rear mold, described
Before sprue is placed in running gate system in mould, reducing type cross gate, ingate and connected pectination ingate are both designed as average
Die joint two sides are distributed in, die joint gap is less than 0.2mm, reducing type ingate and pectination ingate between the preceding mould and rear mold
It is evenly distributed on die joint.
The demoulding is arranged several with mandril and is placed in rear mold, and particular number can be configured according to the actual situation.
The reducing type cross gate is variable diameter design, to guarantee molten metal bath in the process for being injected into reducing type ingate
In, guarantee that each reducing type ingate melt flow rate is close, to guarantee to fill the steady progress of type.
The pectination ingate to the transition of reducing type ingate be flat beak shape variable diameter Transition Design, to guarantee molten metal
Liquid can be steadily injected into an actor's rendering of an operatic tune, and it is good that type sequence is filled in guarantee.
The beneficial effects of the present invention are: this running gate system compares, the commonly running gate systems such as tree-shaped are used pours in comb dress
Road design is designed with reducing type ingate, can will be flowed into molten metal bath therein and is smoothly injected into mold cavity, make
The medium-sized intracavitary melt confluence of cavity filling process is less, and it is good to fill type sequence, effectively overcomes the medium-sized intracavitary generation of thin-wall part cavity filling process
The defect of unnecessary volume gas and oxide inclusion improves the quality of casting, is easy to improve the product yield of casting；Manufacture difficulty
It is low, mold complexity can be reduced, is low to die casting machine tonnage demand, in various Die Castings have very strong generalization.
Detailed description of the invention
Fig. 1 is a kind of die casting side sectional view of thin-walled pack alloy structural member containing running gate system of the present invention；
Fig. 2 is a kind of die casting top view of thin-walled pack alloy structural member containing running gate system of the present invention；
Fig. 3 is flat beak shape intermediate shape schematic diagram of the heretofore described ingate to ingate；
Wherein,
Mould before 1,2 rear molds, 3 demoulding mandrils, 4 reducing type ingates, 5 material cakes, 6 sprues, 7 reducing type cross gates, 8 combs
Shape ingate, 9 type chambers, 10 exhaust ducts, 11 overflow launders.
Specific embodiment
In order to preferably explain the present invention, in order to understand, with reference to the accompanying drawing, by specific embodiment, to this hair
Bright technical solution and effect is described in detail.
As shown in Figs. 1-2, a kind of thin-walled pack alloy structural member running gate system, including it is several demouldings mandril 3, straight
Running channel 6, reducing type cross gate 7, multiple pectination ingates 8 and multiple reducing type ingates 4, the reducing type ingate 4 one
End is connected with the molten metal outflow end of pectination ingate 8, as shown in figure 3, mistake of the pectination ingate 8 to reducing type ingate 4
Crossing shape is flat beak shape, and 4 other end of reducing type ingate is connected to type chamber 9, is distributed several overflow launders and exhaust in type cavity edge
Road, 8 other end of pectination ingate are connected with reducing type cross gate 7, and reducing type cross gate 7 is connected to sprue 6.
Die casting where a kind of thin-walled pack alloy structural member running gate system includes preceding mould 1 and rear mold 2, institute
It states before sprue 6 in running gate system is placed in mould 1, reducing type cross gate 7 is placed in inside rear mold 2, and demoulding mandril is arranged several
A to be placed in rear mold, die joint gap is to be poured in pectination ingate 8 and reducing type less than 0.2mm between the preceding mould 1 and rear mold 2
Mouth 4 is evenly distributed on die joint.
The reducing type reducing type cross gate 7 is variable diameter design, is poured with guaranteeing molten metal bath being injected into reducing type
During mouth 4, guarantee that each 4 melt flow rate of reducing type ingate is close, to guarantee to fill the steady progress of type.
It is described in detail for being poured a kind of AlSi10MnMg thin-wall aluminum alloy spandrel girder below: as Figure 2-3,
10, six groups of pectination ingates 8 of 11 groups of overflow launders 11 and exhaust duct, specific structure ginseng are set at 9 edge of type chamber in the present embodiment
Number setting are as follows: 6 specification of sprue is 10mmx35mm, surrounding rounded corner 2mm, whole 45 ° of the curvature of sprue 6, curvature radius
30mm；7 specification of reducing type cross gate is Φ 10mm variable diameter to Φ 8mm, and connection 6 position of sprue is Φ 10mm, and reducing type is horizontal to be poured
It is Φ 8mm that 7 end of road, which connects 8 position of pectination ingate, and 8 specification of pectination ingate is Φ 8mm, and reducing type cross gate 7 connects
6 bent angle curvature of sprue is 34 °~48 °, bending radius 10mm-25mm.
The pectination ingate 8 is flat beak shape variable diameter Transition Design to the transition of reducing type ingate 4, melts gold with guarantee
Belonging to liquid can steadily be injected into an actor's rendering of an operatic tune, and it is good that type sequence is filled in guarantee, as shown in figure 3, being flat beak shape and type chamber 9 by pectination variable diameter
Connection, with 9 junction specification of type chamber be 1.5mmx12mm, 10 ° of variable diameter curvature, bending radius 8mm, 4 side of reducing type ingate
By 8mm variable diameter to 1.5mm, 10 ° of variable diameter curvature, 20 ° of bending radius, to guarantee that molten metal bath can steadily be injected into type chamber 9
It is interior, keep molten metal generation confluence in cavity filling process less, melt is in the turbulent flow of the intracavitary generation of type to drop in reduction cavity filling process
The formation of low volume gas and oxide inclusion defect.
The technological parameter of this thin-wall aluminum alloy structural member of die casting is as follows: mold temperature: 180-225 DEG C, punch diameter:
150mm, temperature of aluminum liquid: 680-720 DEG C, quick filling velocity: 3.5m/S, filling rate: 57.5%, projected area:
648mmx374mm, cast gate area coefficient: 1.25, casting pressure: 800bar, detailed process is as follows:
Crucible is preheated first, Control for Kiln Temperature charges at 680 DEG C or more；After melting completely, stop heating, to gold
When category liquid drops to 660 DEG C or so, the pure Mg block that addition is wrapped with masking foil then heats again, furnace temperature is increased and starts to remove
Gas is skimmed refining；Aluminium alloy is stood 5 minutes, starts to cast by adjustment aluminium alloy temperature to 670 DEG C or so later；Press casting procedure
In, melt is filled with material 5 position of cake first, and with the pressurization of equipment, melt is successively filled with sprue 6, reducing type cross gate 7, comb
Shape ingate 8, and be discharged by 4 injection type chamber 9 of reducing type ingate, and by gas in type chamber 9 by exhaust duct 10, it is mixed with gas
The melt of body flows into overflow launder 11；It is opened after filling type completion and pressure maintaining, part demoulding mandril 3 is ejected.
The foregoing is merely one of examples of the invention, are not intended to restrict the invention, although referring to previous examples to this
Invention is illustrated, and for those skilled in the art, still can be to the mold and casting that previous embodiment is recorded
System design scheme is modified, or is improved to part of technical characteristic with design concept.It is all in spirit of the invention
Within principle, made any modification, equivalent replacement, improve etc., it should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of thin-walled pack alloy structural member running gate system, it is characterised in that: including several demoulding mandrils, directly pour
Road, reducing type cross gate, multiple pectination ingates and multiple reducing type ingates, the reducing type cross gate and sprue connect
Logical, the molten metal of the pectination ingate flows into end and is connected with reducing type cross gate, and outflow end is connected to reducing type ingate,
The reducing type ingate other end is connected to the type chamber of mold where running gate system, is distributed several overflow launders and exhaust in type cavity edge
Road.
2. a kind of thin-walled pack alloy structural member running gate system according to claim 1, it is characterised in that: described one kind
Die casting where thin-walled pack alloy structural member running gate system includes preceding mould and rear mold, sprue in the running gate system
Before being placed in mould, reducing type cross gate, ingate and connected pectination ingate are both designed as being evenly distributed in die joint two sides,
Die joint gap is less than 0.2mm between the preceding mould and rear mold, and reducing type ingate and pectination ingate are evenly distributed in die joint
On.
3. a kind of thin-walled pack alloy structural member running gate system according to claim 1, it is characterised in that: the demoulding
Several are arranged with mandril to be placed in rear mold, particular number can be configured according to the actual situation.
4. a kind of thin-walled pack alloy structural member running gate system according to claim 1, it is characterised in that: the variable diameter
Formula cross gate is variable diameter design, to guarantee that molten metal bath during being injected into reducing type ingate, guarantees each reducing type
Ingate melt flow rate is close, to guarantee to fill the steady progress of type.
5. a kind of thin-walled pack alloy structural member running gate system according to claim 1, it is characterised in that: the pectination
Ingate to the transition of reducing type ingate be flat beak shape variable diameter Transition Design, to guarantee that molten metal bath can be steadily injected into
In an actor's rendering of an operatic tune, it is good that type sequence is filled in guarantee.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910800566.5A CN110355344A (en) | 2019-08-28 | 2019-08-28 | A kind of thin-walled pack alloy structural member running gate system |
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| CN201910800566.5A CN110355344A (en) | 2019-08-28 | 2019-08-28 | A kind of thin-walled pack alloy structural member running gate system |
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| CN110355344A true CN110355344A (en) | 2019-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649541A (en) * | 2021-07-19 | 2021-11-16 | 浙江华朔科技股份有限公司 | Multistage variable speed die-casting forming method for new energy automobile motor shell |
| CN114682766A (en) * | 2022-03-16 | 2022-07-01 | 南京工业大学 | Claw-shaped circumferential equally-divided pouring system and pouring method for aluminum alloy shell |
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| JP2007118071A (en) * | 2005-10-31 | 2007-05-17 | Honda Motor Co Ltd | Method for producing cast product and die |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649541A (en) * | 2021-07-19 | 2021-11-16 | 浙江华朔科技股份有限公司 | Multistage variable speed die-casting forming method for new energy automobile motor shell |
| CN113649541B (en) * | 2021-07-19 | 2023-12-22 | 浙江华朔科技股份有限公司 | Multistage speed change die-casting molding method for motor shell of new energy automobile |
| CN114682766A (en) * | 2022-03-16 | 2022-07-01 | 南京工业大学 | Claw-shaped circumferential equally-divided pouring system and pouring method for aluminum alloy shell |
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Application publication date: 20191022 |