CN109648061A - Type liquid forging forming device and manufacturing process are quickly filled in a kind of air pressure - Google Patents
Type liquid forging forming device and manufacturing process are quickly filled in a kind of air pressure Download PDFInfo
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- CN109648061A CN109648061A CN201910016564.7A CN201910016564A CN109648061A CN 109648061 A CN109648061 A CN 109648061A CN 201910016564 A CN201910016564 A CN 201910016564A CN 109648061 A CN109648061 A CN 109648061A
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- melting furnace
- air pressure
- hydraulic press
- gas
- type liquid
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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
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/003—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using inert gases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Type liquid forging forming device and manufacturing process are quickly filled in a kind of air pressure, are related to materials processing engineering field.Existing liquid forging technology there are problems that cost is high, in molten metal cavity filling process it is easy to oxidize, molten metal deformation force is limited and metallic article mechanical property is difficult to improve.Liquid forging forming device includes air pressure injection device, hydraulic press, mold cavity, stalk and melting furnace；Mold cavity is arranged between the upper and lower platform of hydraulic press；The lower section of hydraulic press lower platform is arranged in melting furnace, and stalk runs through the lower platform of hydraulic press, and the inner cavity of melting furnace is communicated with the inner cavity of mold cavity by stalk, and the gas outlet of air pressure injection device is extend into the inner cavity of melting furnace.Apply air pressure into melting furnace by air pressure injection device, the molten metal in melting furnace is filled into mold cavity, hydraulic press is recycled to apply high-pressure to the molten metal in mold cavity, molten metal is plastically deformed.The present invention is shaped for molten metal forging.
Description
Technical field
The present invention relates to materials processing engineering field more particularly to a kind of air pressure quickly fill type liquid forging forming device and
Manufacturing process.
Background technique
Liquid forging be by cast and contour forging technique based on, what is gradually grown up integrates two kinds of technological advantages
Forming technique.Its technical process is simultaneously uncomplicated, i.e., molten metal is directly poured into the liquid for having already passed through preheating and spraying lubricant
In forging mould die cavity, when molten metal is in melting or semi-molten state, closed die applies certain static pressure by formed punch
Power makes molten metal crystallization and freezing under stress, and generates small plastic deformation.The technology is not only able to elimination product and is solidifying
The defects of stomata for being formed in the process, shrinkage cavity, reduces rejection rate, molds high-quality part, moreover it is possible to improve to a certain extent
The performance of part.Compared with casting, avoids product from shrinkage cavity, loose occur, refined crystal grain, improved intensity；Compared with die forging,
It saves forming process and forming pressure is about the 1/5~1/3 of Die Forging, and performance is close to forging index；Without flash and
Riser is cast, stock utilization is high.Therefore liquid forging is a kind of laborsaving, energy saving, section material advanced manufacturing technology.
Liquid forging technology is broadly divided into direct liquid forging method and indirect liquid die forging.Direct liquid forging forming side
Method is similar with solid die forging, and formed punch is loaded directly into that performance is suitable with forging, shape is relatively simple in that can be made on liquid metal
Product.Indirect liquid die-forging forming method is similar with die casting, and mold has been closed before pouring metal melt, and molten metal is by squeezing
Piston injection type chamber is pressed, ingate size is bigger compared with die casting, thus pressure provided by extrusion piston can be effective
It is transmitted to each position of product, it is made to crystallize and be plastically deformed under high pressure.
Currently, directly main problem existing for liquid forging technology is that quantitative pouring is more difficult, although can be from foreign countries
Import quantitative pouring machine, but not only price is too high, but also can not be fully solved the problem of oxidation during liquid metal filling；Indirectly
Liquid forging needs special liquid die forging machine, and common hydraulic press can not fully meet its requirement, but special liquid die forging machine
Cost is very high, and deformation force is limited, and the mechanical property of product is difficult to be further enhanced.
Summary of the invention
The technical problem to be solved in the invention is: there are cost height, molten metals to fill type mistake for existing liquid forging technology
Easy to oxidize in journey, the problem of molten metal deformation force is limited and metallic article mechanical property is difficult to improve；And then provide one kind
Type liquid forging forming device and manufacturing process are quickly filled in air pressure.
The present invention to solve above-mentioned technical problem the technical solution adopted is that: the air pressure quickly fill type liquid forging at
Shape dress is set including air pressure injection device, hydraulic press, mold cavity, stalk and melting furnace；
The mold cavity is arranged between the upper and lower platform of hydraulic press；Hydraulic press lower platform is arranged in melting furnace
Lower section, stalk run through the lower platform of hydraulic press, and the inner cavity of melting furnace is communicated with the inner cavity of mold cavity by stalk, air pressure
The gas outlet of injection device is extend into the inner cavity of melting furnace.
Further, the mold cavity include it is convex touch and lower cavity die, it is convex to touch and lower cavity die is oppositely arranged up and down,
Convex touch is fixedly connected with the upper mounting plate lower surface of hydraulic press, and lower cavity die is fixedly connected with the lower platform upper surface of hydraulic press, under
The bottom of cavity plate is machined with an inlet, and the outlet end of stalk is fixedly connected with the liquid feeding end of lower cavity die bottom.
Further, the air pressure injection device includes air pump and gas-guide tube, and the one of the outlet side of air pump and gas-guide tube
End connection, the other end of gas-guide tube are extend into the inner cavity of melting furnace.
Further, the liquid feeding end of the stalk is in the middle and lower part of fusing furnace chamber.
Further, it further includes lifting platform that type liquid forging forming device is quickly filled in the air pressure, and melting furnace setting exists
The upper surface of lifting platform.
Further, it further includes attemperator, attemperator set that type liquid forging forming device is quickly filled in the air pressure
On the outer surface of stalk, and attemperator is on the pipeline section between mold cavity and melting furnace.
Further, the attemperator is heat-preservation cotton.
The method of the molten metal forging forming, specific steps are as follows:
Step 1 increases lifting platform, and the liquid feeding end of the stalk being inserted in melting furnace and lower cavity die is attached and close
Envelope；
Step 2, hydraulic press drive is convex to touch downlink, until convex touch is aligned with lower cavity die and forms near closed hollow ring；
Step 3 opens air pump and inputs gas into melting furnace, until the air discharge in melting furnace, closes air pump；
Step 4 melts the metal block in melting furnace, opens air pump and inputs gas into melting furnace and pressurize；
Step 5, the molten metal in melting furnace fill liquid into mold cavity, hydraulic press pressurization, and pressure maintaining 10~20 seconds；
Step 6, after pressure maintaining, hydraulic press drive is convex to touch back journey；
Step 7 closes air pump, and opens in gas-guide tube and switch, and excludes excessive gas；
Step 8, by molded part after being taken out in mold cavity, clear up it is convex touch and lower cavity die, and spray lubricant；
Step 9, hydraulic press drive is convex to touch downlink, until convex touch is aligned with lower cavity die and is formed near closed hollow ring, carries out
The forming of next product.
Further, the gas in the air pump is argon gas.
Further, the metal in the melting furnace is almag.
The beneficial effects of the present invention are:
1, the present invention is melted the metal alloys such as magnalium by melting furnace, then directly enters liquid metal injection
The mold cavity of closure, subsequent punch-pin press molding, while obtained strong mechanical performance product, be truly realized near net at
Shape, and can effectively improve production efficiency；
2, the problem of installing air pressure injection device on metal molten furnace, realizing quantitative pouring, it is fixed to purchase without high price
Casting machine is measured, cost is saved；Inert gas is injected into metal molten furnace simultaneously, effectively avoids molten metal and air
Contact, and by being passed through inert gas, it can effectively prevent the oxidation of liquid metal, and then improve the mechanical property of product
Energy；
3, the forming of molten metal can be realized using ordinary press by the present invention, be not necessarily to special hydraulic press.
Detailed description of the invention
Fig. 1 is the overall structure diagram of molten metal forging former；
Fig. 2 is the partial enlarged view of Fig. 1.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments:
Specific embodiment 1: as shown in Figure 1, type liquid forging forming device is quickly filled in air pressure described in present embodiment
Including air pressure injection device 1, hydraulic press 3, mold cavity 4, stalk 7 and melting furnace 8；
The mold cavity 4 is arranged between the upper and lower platform of hydraulic press 3；Melting furnace 8, which is arranged under hydraulic press 3, puts down
The lower section of platform, stalk 7 run through the lower platform of hydraulic press 3, and the inner cavity of melting furnace 8 and the inner cavity of mold cavity 4 pass through stalk 7
It communicates, the gas outlet of air pressure injection device 1 is extend into the inner cavity of melting furnace 8.
Melting furnace melts the metal alloys such as magnalium, and liquid metal injection is directly then entered closed mould type
In chamber, under the action of hydraulic press, upper male mould downlink pressurizes to the molten metal in mold cavity, and molten metal is under high pressure
It solidifies and is plastically deformed, while obtained strong mechanical performance product, be truly realized near-net-shape；
The problem of installing air pressure injection device on metal molten furnace, realizing quantitative pouring is purchased quantitative without high price
Casting machine saves cost；The hydraulic press be four-column hydraulic press, using ordinary press can be realized molten metal at
Shape is not necessarily to special hydraulic press.
Specific embodiment 2: as shown in Fig. 2, mold cavity 4 described in present embodiment includes the convex 4-1 and recessed of touching
Mould 4-2, convex to touch 4-1 and lower cavity die 4-2 or more is oppositely arranged, the convex 4-1 that touches is connected with the upper mounting plate lower surface of hydraulic press 3
It connects, lower cavity die 4-2 is connected with the lower platform upper surface of hydraulic press 3, and the bottom of lower cavity die 4-2 is machined with an inlet, rises
The outlet end of liquid pipe 7 is connected with the liquid feeding end of the bottom lower cavity die 4-2.
Other compositions and connection type are same as the specific embodiment one.
Specific embodiment 3: as shown in Figure 1, air pressure injection device 1 described in present embodiment includes air pump 1-1 and leads
The outlet side of tracheae 1-2, air pump 1-1 are connect with one end of gas-guide tube 1-2, and the other end of gas-guide tube 1-2 extend into melting furnace 8
In inner cavity, and the other end of gas-guide tube 1-2 is in the top of molten metal.
The pressure of gas can be calculated, formula by pascal's principle by formula P=133.3 μ γ H/13.6
Middle H-molten metal lifting height；μ-molten metal density g/cm3；γ-liters of liquid resistance coefficient selection 1.1；P-is required
Pressure Pa；The density g/cm of 13.6-mercury3；
The gas dry being stored in air pump and pressure maintaining；
According to different metal die forgings, the pressure of application is different, and the injection rate of molten metal is different, controls gas by air pump
Pressure and molten metal injection rate.
Other compositions and connection type are identical with embodiment two.
Specific embodiment 4: as shown in Figure 1, the liquid feeding end of stalk 7 described in present embodiment is in melting furnace 8
The middle and lower part of molten metal.
Since upper surface is easy to oxidize in molten metal, and existing impurity etc. can be sunken to bottommost, so by stalk 7
The middle and lower part of molten metal is arranged in liquid feeding end, prevents the impurity of precipitating from entering in stalk.
Other compositions and connection type are the same as the specific implementation mode 3.
Specific embodiment 5: as shown in Figure 1, type liquid forging forming device is quickly filled in air pressure described in present embodiment
It further include lifting platform 10, melting furnace 8 is arranged in the upper surface of lifting platform 10.
The bottom of metal molten furnace is lain on lifting platform, is moved up and down by lifting platform, realizes stalk and lower cavity die
Be coupled.
Other compositions and connection type are identical as specific embodiment four.
Specific embodiment 6: as shown in Figure 1, type liquid forging forming device is quickly filled in air pressure described in present embodiment
Further include attemperator 6,6 sets of attemperator on the outer surface of stalk 7, and attemperator 6 is in mold cavity 4 and fusing
On pipeline section between furnace 8.
It is cased with attemperator on the outer surface of stalk 7, prevents molten metal during being injected into mold cavity
Solidification guarantees that molten metal is in a molten state by attemperator.
Other compositions and connection type are identical as specific embodiment five.
Specific embodiment 7: attemperator 6 described in present embodiment is heat-preservation cotton.
Other compositions and connection type are identical as specific embodiment six.
Specific embodiment 8: the method for the forming of liquid forging described in present embodiment, specific steps are as follows:
Step 1 increases lifting platform 10, the stalk 7 being inserted in melting furnace 8 and the liquid feeding end of lower cavity die 4-2 is connected
It connects and seals；
Step 2, hydraulic press 3 drive it is convex touch 4-1 downlink, until the convex 4-1 that touches is aligned with lower cavity die 4-2 and forms envelope
Closed form chamber；
Step 3 opens air pump 1-1 and inputs gas into melting furnace 8, until the air discharge in melting furnace, closes air pump
1-1；
Step 4 melts the metal alloy in melting furnace, opens air pump 1-1 and inputs gas into melting furnace 8 and pressurize；
Step 5, molten metal in melting furnace fliud flushing, hydraulic press 3 into mold cavity 4 pressurize, and pressure maintaining 10~20 seconds,
Until molten metal is plastically deformed；
Step 6, after pressure maintaining, hydraulic press 3, which drives, convex touches 4-1 backhaul；
Step 7 closes air pump 1-1, and opens and switch in gas-guide tube 1-2, excludes excessive gas；
Step 8, by molded part after taking out in mold cavity 4, cleaning is convex to touch 4-1 and lower cavity die 4-2, and sprays
Lubricant；
Step 9, hydraulic press 3 drive it is convex touch 4-1 downlink, until the convex 4-1 that touches is aligned with lower cavity die 4-2 and forms envelope
Closed form chamber carries out the forming of next product.
Other compositions and connection type are identical as specific embodiment seven.
Specific embodiment 9: the gas in air pump 1-1 described in present embodiment is argon gas.
Molten metal from being oxidized in order to prevent, metal alloy fusing front opening air pump input inert gas into metal molten furnace
Argon gas, be discharged metal molten furnace in air, prevent metal alloy in melting process with the air oxidation in metal molten furnace,
Air pressure is increased after metal alloy fusing, then molten metal is injected in mold cavity under gas pressure, improves product
Mechanical property.
Other compositions and connection type are identical as specific embodiment eight.
Specific embodiment 10: the metal in melting furnace 8 described in present embodiment is almag.
Other compositions and connection type are identical as specific embodiment nine.
Claims (10)
1. type liquid forging forming device is quickly filled in a kind of air pressure, it is characterised in that: type liquid forging is quickly filled in the air pressure
Forming device includes air pressure injection device (1), hydraulic press (3), mold cavity (4), stalk (7) and melting furnace (8)；
The mold cavity (4) is arranged between the upper and lower platform of hydraulic press (3)；Melting furnace (8) is arranged in hydraulic press (3)
The lower section of lower platform, stalk (7) run through the lower platform of hydraulic press (3), and the inner cavity of melting furnace (8) is interior with mold cavity (4)
Chamber is communicated by stalk (7), and the gas outlet of air pressure injection device (1) is extend into the inner cavity of melting furnace (8).
2. type liquid forging forming device is quickly filled in a kind of air pressure according to claim 1, it is characterised in that: the mould
Tool type chamber (4) include it is convex touch (4-1) and lower cavity die (4-2), it is convex to touch (4-1) and lower cavity die (4-2) is oppositely arranged up and down, on
Convex touch (4-1) is connected with the upper mounting plate lower surface of hydraulic press (3), the lower platform upper surface of lower cavity die (4-2) and hydraulic press (3)
It is connected, the bottom of lower cavity die (4-2) is machined with an inlet, outlet end and the bottom lower cavity die (4-2) of stalk (7)
Liquid feeding end is connected.
3. type liquid forging forming device is quickly filled in a kind of air pressure according to claim 2, it is characterised in that: the gas
Pressure injection device (1) includes air pump (1-1) and gas-guide tube (1-2), the outlet side and the one end of gas-guide tube (1-2) of air pump (1-1)
Connection, the other end of gas-guide tube (1-2) is extend into the inner cavity of melting furnace (8), and the other end of gas-guide tube (1-2) is in metal
The top of solution.
4. type liquid forging forming device is quickly filled in a kind of air pressure according to claim 3, it is characterised in that: the liter
The liquid feeding end of liquid pipe (7) is in the middle and lower part of melting furnace (8) interior metallic solution.
5. type liquid forging forming device is quickly filled in a kind of air pressure according to claim 4, it is characterised in that: the gas
It further includes lifting platform (10) that pressure, which quickly fills type liquid forging forming device, and melting furnace (8) is arranged in the upper surface of lifting platform (10).
6. type liquid forging forming device is quickly filled in a kind of air pressure according to claim 5, it is characterised in that: the gas
It further includes attemperator (6) that pressure, which quickly fills type liquid forging forming device, and attemperator (6) is covered in the outer surface of stalk (7)
On, and attemperator (6) is on the pipeline section between mold cavity (4) and melting furnace (8).
7. type liquid forging forming device is quickly filled in a kind of air pressure according to claim 6, it is characterised in that: the guarantor
Warm device (6) is heat-preservation cotton.
8. a kind of side for quickly filling type liquid forging forming device preparation solution state die-forging forming using air pressure as claimed in claim 7
Method, it is characterised in that: specific steps are as follows:
Step 1 increases lifting platform (10), by the liquid feeding end of the stalk (7) being inserted on melting furnace (8) and lower cavity die (4-2) into
Row is connected and is sealed；
Step 2, hydraulic press (3) drive is convex to touch (4-1) downlink, until convex touch (4-1) is aligned simultaneously shape with lower cavity die (4-2)
At near closed hollow ring；
Step 3 opens air pump (1-1) and inputs gas into melting furnace (8), until the air discharge in melting furnace, closes air pump
(1-1)；
Step 4 melts the metal alloy in melting furnace, opens air pump (1-1) and inputs gas into melting furnace (8) and pressurize；
Step 5, the molten metal in melting furnace fill liquid, hydraulic press (3) pressurization, pressure maintaining 10~20 into mold cavity (4)
Second；
Step 6, after pressure maintaining, hydraulic press (3) drive is convex to touch (4-1) backhaul；
Step 7 closes air pump 1-1, and opens switch in gas-guide tube (1-2), excludes excessive gas；
Step 8, after molded part is taken out from mold cavity (4), cleaning is convex to touch (4-1) and lower cavity die (4-2), and sprays
Apply lubricant；
Step 9, hydraulic press (3) drive is convex to touch (4-1) downlink, until convex touch (4-1) is aligned simultaneously shape with lower cavity die (4-2)
At near closed hollow ring, the forming of next product is carried out.
9. the method that type liquid forging forming is quickly filled in a kind of air pressure according to claim 8, it is characterised in that: the gas
Pumping the gas in (1-1) is argon gas.
10. the method that type liquid forging forming is quickly filled in a kind of air pressure according to claim 9, it is characterised in that: described
Melting furnace (8) in metal be almag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016564.7A CN109648061A (en) | 2019-01-08 | 2019-01-08 | Type liquid forging forming device and manufacturing process are quickly filled in a kind of air pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910016564.7A CN109648061A (en) | 2019-01-08 | 2019-01-08 | Type liquid forging forming device and manufacturing process are quickly filled in a kind of air pressure |
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| Publication Number | Publication Date |
|---|---|
| CN109648061A true CN109648061A (en) | 2019-04-19 |
Family
ID=66119589
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910016564.7A Pending CN109648061A (en) | 2019-01-08 | 2019-01-08 | Type liquid forging forming device and manufacturing process are quickly filled in a kind of air pressure |
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| CN (1) | CN109648061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560666A (en) * | 2019-10-24 | 2019-12-13 | 明灏科技（北京）有限公司 | Device for fixing lens |
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|---|---|---|---|---|
| US3523570A (en) * | 1964-07-02 | 1970-08-11 | American Standard Inc | Method of press forming thin-walled cast iron parts |
| JPS56111564A (en) * | 1980-02-12 | 1981-09-03 | Nikkei Giken:Kk | Pressure casting method |
| JPS59133962A (en) * | 1983-01-20 | 1984-08-01 | Toyota Motor Corp | Method and device for vacuum casting |
| JPH09234555A (en) * | 1996-02-28 | 1997-09-09 | Honda Motor Co Ltd | Low pressure casting apparatus |
| JPH1085919A (en) * | 1996-07-22 | 1998-04-07 | Ebisu:Kk | Pressure casting method and apparatus therefor |
| KR100478288B1 (en) * | 2004-10-29 | 2005-03-24 | 하태수 | Forging apparatus and control method for rheocasting |
| CN107138709A (en) * | 2017-05-19 | 2017-09-08 | 昆山万江众力机械有限公司 | Casting machine is forged in Novel bunk die casting |
| CN207308937U (en) * | 2017-10-23 | 2018-05-04 | 南充兆庆机械制造有限公司 | A kind of wheel hub casting device |
-
2019
- 2019-01-08 CN CN201910016564.7A patent/CN109648061A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3523570A (en) * | 1964-07-02 | 1970-08-11 | American Standard Inc | Method of press forming thin-walled cast iron parts |
| JPS56111564A (en) * | 1980-02-12 | 1981-09-03 | Nikkei Giken:Kk | Pressure casting method |
| JPS59133962A (en) * | 1983-01-20 | 1984-08-01 | Toyota Motor Corp | Method and device for vacuum casting |
| JPH09234555A (en) * | 1996-02-28 | 1997-09-09 | Honda Motor Co Ltd | Low pressure casting apparatus |
| JPH1085919A (en) * | 1996-07-22 | 1998-04-07 | Ebisu:Kk | Pressure casting method and apparatus therefor |
| KR100478288B1 (en) * | 2004-10-29 | 2005-03-24 | 하태수 | Forging apparatus and control method for rheocasting |
| CN107138709A (en) * | 2017-05-19 | 2017-09-08 | 昆山万江众力机械有限公司 | Casting machine is forged in Novel bunk die casting |
| CN207308937U (en) * | 2017-10-23 | 2018-05-04 | 南充兆庆机械制造有限公司 | A kind of wheel hub casting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560666A (en) * | 2019-10-24 | 2019-12-13 | 明灏科技（北京）有限公司 | Device for fixing lens |
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| CB03 | Change of inventor or designer information |
Inventor after: Du Zhiming Inventor after: Wang Dayu Inventor after: Sun Yonggen Inventor after: Chen Gang Inventor before: Du Zhiming Inventor before: Wang Dayu Inventor before: Chen Gang |
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