CN110227812A - A kind of novel pressure casting apparatus and its filling method - Google Patents
A kind of novel pressure casting apparatus and its filling method Download PDFInfo
- Publication number
- CN110227812A CN110227812A CN201910679304.8A CN201910679304A CN110227812A CN 110227812 A CN110227812 A CN 110227812A CN 201910679304 A CN201910679304 A CN 201910679304A CN 110227812 A CN110227812 A CN 110227812A
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- China
- Prior art keywords
- pressure
- feeding cylinder
- filling
- feed
- casting
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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
- 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
-
- 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
- B22D18/08—Controlling, supervising, e.g. for safety reasons
Abstract
The invention discloses a kind of novel pressure casting apparatus and its filling method, including feed furnace, stalk, feeding cylinder and injection punch head；The side of feed furnace is arranged in feeding cylinder, and feeding cylinder lower end is connected with stalk, and side is equipped with injection punch head.The present invention has the beneficial effect that (1) is filled with low pressure using ultra dense actual gains, and high-pressure molding forms fine and close so internal pore-free, can be heat-treated, so as to allow casting mechanical property and internal air-tightness it is more preferable；(2) control is by the way of low pressure casting, pass through gas pressure, so that aluminium alloy under gas pressure effect along stalk to it is lower and on be full of type chamber, molten metal seething, impacting when filling type, splash phenomena has been reduced or avoided, to subtract into the formation for having lacked stomata and oxidizing slag；On the basis of existing die casting machine, original soup feeding machine and feed furnace are replaced, up amount charging feed furnace keeps liquid metal filling steady as the feeding device of die casting machine as desired using lower section.
Description
Technical field
The present invention relates to Casting Equipment technical field, more particularly to a kind of novel pressure casting apparatus and its
Filling method.
Background technique
High-pressure casting is many times called compression casting for short, it is that molten metal is poured into pressure chamber, makes molten metal in high speed
Crystallization and freezing forms the process of casting under high pressure after lower filling mold cavity.High pressure, be at a high speed high-pressure casting main feature,
Flowing velocity when filling can arrive 30-80mm/s, even higher, and the pressure that molten metal is born when solidifying is up to 40-120MPa,
The time of molten metal filled-type chamber is extremely short, has many advantages, such as that surface smoothness is good, dimensionally stable, can straight forming thin-wall construction,
But also thering are many defects to occur simultaneously, liquid metals filling velocity is high when die casting, and type intracavity gas is difficult to exclude completely, casting
Easily occur stomata and crackle and oxidizing slag object there are the defects of, die casting generally can not be heat-treated.
Summary of the invention
In view of this, it is an object of that present invention to provide a kind of novel pressure casting apparatus and its filling method, it can not only
The defect of the prior art is enough solved, and the mechanical property of casting and internal air-tightness can be allowed more preferable.
To achieve the above object, the invention provides the following technical scheme:
A kind of novel pressure casting apparatus, which is characterized in that the device includes: feed furnace, stalk, feeding cylinder and pressure
Penetrate formed punch；Wherein, the side of feed furnace is arranged in the feeding cylinder, and the feeding cylinder lower end is connected with stalk, side installation
There is injection punch head.
Preferably, in above-mentioned one kind novel pressure casting apparatus and its filling method, the feed furnace includes one
Air inlet, a feed inlet and a discharge port, one end airtight connection stalk of the discharge port, to feeding from below
Until filling up type chamber in feeding cylinder.
Preferably, in above-mentioned one kind novel pressure casting apparatus and its filling method, the feeding cylinder lower part is opened
Mouthful, to the conveying fed.
Preferably, in above-mentioned one kind novel pressure casting apparatus and its filling method, this method uses low pressure casting
Mode acted on using the feed-type of molten metal by external air pressure, by metal liquid by conveyance conduit it is direct
It is pressed into the feeding cylinder of die casting machine, into filling the type stage, continues slowly pressurization, so that metal liquid is slowly full of type chamber, finally, injection
Formed punch continues to be pushed forward pressurization, by casting needs pressure span die cast.
Preferably, in above-mentioned one kind novel pressure casting apparatus and its filling method, the feeding cylinder is than conventional
Feeding cylinder it is short, it is original to fill injection stroke required for type, now in a manner of low pressure smelting furnace autofeed, by molten metal filled type
Chamber, therefore injection stroke shortens.
Preferably, in above-mentioned one kind novel pressure casting apparatus and its filling method, it is described fill the type stage be rely on
It is fed furnace, giving the aluminium alloy of molten condition to a pressure makes it overcome gravity, rises the process for filling up type chamber.
Preferably, described to fill the type stage: to work as feed in above-mentioned one kind novel pressure casting apparatus and its filling method
When furnace fills type and reach type chamber 90% from feed, shot sleeve pressurization starting injection process is passed by the charging of feeding cylinder to injection punch head
After mouthful, shot sleeve continues to complete injection, while smelting furnace pressure release, and point molten metal returns in smelting furnace in stalk.
Preferably, in above-mentioned one kind novel pressure casting apparatus and its filling method, the pressure span can root
It is set according to different product, different-alloy, preferably 20-70KPa and 20-180MPa.
It can be seen via above technical scheme that compared with prior art, the invention has the beneficial effects that:
(1) it is filled with low pressure using ultra dense actual gains, high-pressure molding forms fine and close, Ke Yire so internal pore-free
Processing, so as to make the mechanical property of casting and internal air-tightness more preferable；
(2) control is by the way of low pressure casting, by gas pressure, so that aluminium alloy acts on lower edge liter in gas pressure
Liquid pipe to it is lower and on be full of type chamber, molten metal seething, impacting when filling type, splash phenomena has been reduced or avoided, to subtract
At the formation for having lacked stomata and oxidizing slag；
(3) on the basis of existing die casting machine, original soup feeding machine and feed furnace are replaced, with lower section up according to need
Feeding device of the amount of the asking charging feed furnace as die casting machine, keeps liquid metal filling steady.
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
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is structural schematic diagram of the invention.
Fig. 2 attached drawing is top view of the invention.
Fig. 3 attached drawing is the portion A enlarged drawing of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses one kind to have structure is simple and convenient to operate, mechanical castings and air-tightness are good etc.
The novel pressure casting apparatus and its filling method of feature.
Attached drawing 1-3 is please referred to, is one kind disclosed by the invention novel pressure casting apparatus and its filling method, it is specific to wrap
It includes:
It is fed furnace 1, stalk 2, feeding cylinder 3 and injection punch head 4；Wherein, the one of feed furnace 1 is arranged in the feeding cylinder 3
Side, 3 lower end of feeding cylinder are connected with stalk 2, and side is equipped with injection punch head 4；The feed furnace 1 includes an air inlet
11, a feed inlet 12 and a discharge port 13, one end airtight connection stalk 2 of the discharge port 13, to from below
Until filling up type chamber in feeding to feeding cylinder；3 lower openings of feeding cylinder, to the conveying fed.
Embodiment: in use, load weighted alloy solution (380 degree of kirsite to 1400 degree of fine copper is all suitable for) is set
It is kept the temperature in feed furnace, then passes through controlled valve, unicom pipeline, molten metal bath passes through stalk under under pressure
Feeding cylinder is risen on and, subsequently enters and fills the type stage, when feed furnace, which fills type from feed, reaches type chamber 90%, injection
Cylinder, which pressurizes, starts injection process, after the feed inlet of feeding cylinder of passing by injection punch head, continues to complete injection, while smelting furnace is let out
Pressure, point molten metal flow back into smelting furnace body due to gravity in stalk, and die casting machine completes injection movement.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of novel pressure casting apparatus, which is characterized in that the device includes: feed furnace, stalk, feeding cylinder and injection
Formed punch；Wherein, the side of feed furnace is arranged in the feeding cylinder, and the feeding cylinder lower end is connected with stalk, and side is equipped with
Injection punch head.
2. the novel pressure casting apparatus of one kind according to claim 1, which is characterized in that the feed furnace includes one
Air inlet, a feed inlet and a discharge port, one end airtight connection stalk of the discharge port, to feeding from below
Until filling up type chamber in feeding cylinder.
3. the novel pressure casting apparatus of one kind according to claim 1, which is characterized in that open the feeding cylinder lower part
Mouthful, to the conveying fed.
4. a kind of novel compression casting filling method, which is characterized in that this method utilizes melting by the way of low pressure casting
The feed-type of metal, is acted on by external air pressure, and metal liquid is pressed directly into entering for die casting machine by conveyance conduit
Barrel continues slowly pressurization, metal liquid is made slowly to be full of type chamber, add finally, injection punch head continues to be pushed forward into filling the type stage
Pressure, by casting needs pressure span die cast.
5. the novel compression casting filling method of one kind according to claim 4, which is characterized in that the feeding cylinder ratio
Conventional feeding cylinder is short, original to fill injection stroke required for type, and now in a manner of low pressure smelting furnace autofeed, molten metal is filled out
Enter type chamber, therefore injection stroke shortens.
6. the novel compression casting filling method of one kind according to claim 4, which is characterized in that described to fill the type stage and be
By feed furnace, giving the aluminium alloy of molten condition to a pressure makes it overcome gravity, rises the process for filling up type chamber.
7. the novel compression casting filling method of one kind according to claim 6, which is characterized in that described to fill the type stage:
When being fed furnace and filling type from feed and reach type chamber 90%, shot sleeve pressurization starting injection process is passed by feeding cylinder to injection punch head
Feed inlet after, shot sleeve continues to complete injection, while smelting furnace pressure release, and point molten metal returns in smelting furnace in stalk.
8. the novel compression casting filling method of one kind according to claim 4, which is characterized in that the pressure span can
To be set according to different product, different-alloy, preferably 20-70KPa and 20-180MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679304.8A CN110227812A (en) | 2019-07-25 | 2019-07-25 | A kind of novel pressure casting apparatus and its filling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679304.8A CN110227812A (en) | 2019-07-25 | 2019-07-25 | A kind of novel pressure casting apparatus and its filling method |
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| Publication Number | Publication Date |
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| CN110227812A true CN110227812A (en) | 2019-09-13 |
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| CN201910679304.8A Pending CN110227812A (en) | 2019-07-25 | 2019-07-25 | A kind of novel pressure casting apparatus and its filling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548074A (en) * | 2019-09-26 | 2021-03-26 | 沈阳铸造研究所有限公司 | Pressure-regulating filling type high-pressure solidification casting device and casting method |
-
2019
- 2019-07-25 CN CN201910679304.8A patent/CN110227812A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548074A (en) * | 2019-09-26 | 2021-03-26 | 沈阳铸造研究所有限公司 | Pressure-regulating filling type high-pressure solidification casting device and casting method |
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