CN106735086A - A kind of casting device - Google Patents
A kind of casting device Download PDFInfo
- Publication number
- CN106735086A CN106735086A CN201611247574.4A CN201611247574A CN106735086A CN 106735086 A CN106735086 A CN 106735086A CN 201611247574 A CN201611247574 A CN 201611247574A CN 106735086 A CN106735086 A CN 106735086A
- Authority
- CN
- China
- Prior art keywords
- molten metal
- casting
- die cavity
- entrance
- pressure
- 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.)
- Granted
Links
Classifications
-
- 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
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of casting device, the molten metal for making molten metal increase including the casting mold with die cavity, using gas pressure or electromagnetic force rises liquid passage, described liter liquid passage is connected with casting mold die cavity by molten metal entrance, it is characterized in that, in the molten metal entrance top that liter liquid passage is connected with casting mold die cavity, being provided with can be after cavity filling process terminates by the packaged unit of molten metal entrance closing/unlatching, while described casting device also includes：The pressing mechanism that die cavity inner metal liquid can be pressurizeed after molten metal entrance is closed, this invention ensures that the low pressure controllable aerating type of molten metal and High Pressure Solidification shaping, while the molten metal risen in liquid passage will not form scull, extend service life of equipment.
Description
Technical field
The present invention relates to Casting Equipment technical field, more particularly, to a kind of achievable low pressure controllable aerating type, High Pressure Solidification
The casting device of shaping.
Background technology
Low pressure casting is the Countergravity casting method having wide range of applications at present, and the general principle of low pressure casting is to use low pressure
Molten metal in gas-powered crucible or holding furnace, is passed to stalk and rises and enter mold cavity, fills after type terminates and uses
Solidification and feeding of the low-pressure gas by crucible by the completion of casting mold inner metal liquid under pressure.Low-pressure casting process is filling type
Stage needs molten metal smoothly filling cast as far as possible, with the stomata and inclusion defect that avoid turbulent volume gas from bringing；And filling
Type complete after, it would be desirable that as far as possible increase casting mold in pressure with avoid or reduce due to molten metal shrink caused by shrinkage cavity shrinkage porosity
Etc. casting flaw.And in the prior art, the supercharging filled after type terminates generally is still using the low pressure gas in crucible or holding furnace
Body is pressurizeed, and pressure is transmitted in the way of crucible inner metal liquid-stalk inner metal liquid-die cavity inner metal liquid.The one of above-mentioned technique
Individual subject matter be in the supercharging process of setting filled after type terminates, due to crucible or holding furnace have a big chunk part be by
The relatively low refractory material of intensity is made, it is contemplated that the intensity restriction of above-mentioned part, thus can not possibly significantly increase solidification stages
Pressure.With the precise treatment to casting, thin-walled property, lightweight and Labor-saving requirement more and more higher, real high-quality is cast
Casting, how simultaneously meet following two primary conditions：(1) the steady filling cast of molten metal can be allowed；(2) metal in casting mold is allowed
Liquid completes feeding and solidification at very high pressures, is always the problem for troubling casting circle.In order to improve low pressure casting feeding and
Freezing pressure, after the sixties in last century, occurs in that the ameliorative ways such as counter-pressure casting, adjustable pressure casting, but feeding and freezing pressure increase
Plus degree is still inadequate, typically smaller than 1MPa causes the consistency of casting and intensity and toughness not to reach also satisfactorily
Degree.
The Chinese invention patent application of Publication No. CN101623749A discloses a kind of moulding die and can produce
The air injection machine of high pressure, proposes to set pressurization plug below the die cavity cast gate of casting mold, and stalk is set to oblique, fills after type terminates
Pressurization rises closing cast gate beyond the Great Wall, realizes solidifying under high pressure by the pressue device set on casting mold, but the mechanism still has and asks as follows
Topic, after pressurization rises sealing beyond the Great Wall, has a considerable amount of molten metals and rests in cast gate 5 and lower feeding chamber 13, in process of setting
Necessarily there is molten metal scull at above-mentioned position, after causing release, still has partial solid phase to remain after molten metal backflow, is that subsequent work is followed
Annulus influences.
The content of the invention
In order to solve the above technical problems, being molded the invention provides a kind of achievable low pressure controllable aerating type, High Pressure Solidification
Casting device.
The complete technical scheme of the present invention includes：
A kind of casting device, including the casting mold with die cavity, made using gas pressure or electromagnetic force molten metal rise gold
Category liquid rises liquid passage, and described liter liquid passage is connected with casting mold die cavity by molten metal entrance, it is characterised in that in a liter liquid passage
The molten metal entrance top connected with casting mold die cavity, being provided with can close/open after cavity filling process terminates by molten metal entrance
The packaged unit for opening, while described casting device also includes：Die cavity inner metal liquid can be entered after molten metal entrance is closed
The pressing mechanism of row pressurization.
Preferably, the packaged unit is spreader.
Preferably, it is stalk or riser buss or thermos cup that described molten metal rises liquid passage.
Preferably, the drive mechanism also including the driving closure member seals or opening metal liquid entrance.
Preferably, described drive mechanism drives packaged unit to rise or fall.
Preferably, described pressing mechanism ring plug or pressure rod.
Antigravity casting machine with above-mentioned casting device.
Above-mentioned casting device carries out the antigravity castings such as low pressure casting, counter-pressure casting, adjustable pressure casting or fills type using above-mentioned
The method of the extrusion casint of mode, it is characterised in that including making molten metal pass through to rise liquid passage using gas pressure or electromagnetic force
Into the cavity filling process of casting mold die cavity, and the supercharging process of setting filled after type, it is characterised in that described cavity filling process terminates
Afterwards, the entrance for rising liquid passage and die cavity molten metal will be connected using packaged unit to close, then using pressing mechanism in die cavity
Molten metal pressurizeed.
Preferably, filling after type terminates and close molten metal entrance, the molten metal risen in liquid passage is back to crucible or guarantor
In warm stove.
The present invention is relative to the advantage of prior art：In low pressure casting die die cavity, in face of molten metal inflow side
To spreader is typically provided with, it is mainly and molten metal is played a part of shunting guiding and compacting screen pack, and can not be moved.
The present invention creatively moves up and down spreader using driver part, and closes gold using spreader filling after type terminates
Category liquid entrance, then using pressing mechanism to molten metal high-pressure, it is ensured that molten metal solidifies under high pressure, while rising liquid passage
Interior molten metal is back in crucible or holding furnace, will not herein form scull, extends service life of equipment, and for next
Task circulation is provided and ensured.
Brief description of the drawings
Fig. 1 is that casting device of the invention rises liquid stage structures schematic diagram.
Fig. 2 is casting device solidification stages structural representation of the invention.
In figure：1- stalks, 2- lower templates, mould under 3-, 4- thermos cups, 5- sprue bush, 6- spreaders, 7- pressure cuffs, 8-
Spreader drive device, 9- increased pressure boards, the upper moulds of 10-, 11- die cavitys.
Specific embodiment
By taking the low pressure casting of aluminium alloy as an example, and the present invention will be further described to combine the drawings and specific embodiments.
As shown in figure 1, Fig. 1 is casting device of the invention rises liquid stage structures schematic diagram, device includes stalk 1, under
Template 2, lower mould 3, thermos cup 4, sprue bush 5, spreader 6, pressure cuffs 7, spreader drive device 8, increased pressure board 9, upper mould 10, mould
Chamber 11.
In low pressure casting process, the aluminium liquid in holding furnace is pressurizeed first, aluminium liquid is risen by stalk 1, by insulation
In the die cavity 11 that cup 4 and sprue bush 5 enter between lower mould 3 and upper mould 10, lower mould 3 is installed in lower template 2, wherein spreader 6
In die cavity 11, just to the aluminium liquid porch of sprue bush 5 and die cavity 11, and liter liquid stage aluminium liquid is played shunting be oriented to
And screen pack (if playing the role of) is compacted, this process needs to take relatively low pressure, makes aluminium liquid with layer flow mode stable filling
Type, and make gas there is grace time to discharge, it is to avoid due to the turbulent volume gas defect such as cause stomata and secondary oxidation to be mingled with.
Etc. filling after the type stage terminates, as shown in Fig. 2 driving spreader 6 by the spreader drive device 8 positioned at die top
Descending, the aluminium liquid entrance of closing sprue bush 5 and die cavity 11 is now incubated furnace pressure release, makes sprue bush 5, thermos cup 4 and rises
Aluminium liquid in liquid pipe 1 is back in holding furnace, it is to avoid it causes scull due to being overstayed in above-mentioned part, and next production is followed
Ring is impacted, and the spreader drive device 8 can be using existing drive mechanisms such as cylinder, oil cylinder, motors.Now in die cavity 11
Aluminium liquid enters solidification stages, and the pressurised driving device driving drive of increased pressure board 9 pressure cuffs 7 carry out high pressure-charging to the aluminium liquid in die cavity,
Aluminium liquid is solidified under high pressure, reduce or eliminate the castings such as the shrinkage cavity shrinkage porosity that easily occurs because aluminium liquid is shunk in process of setting
Defect.
After solidification terminates, the normal process steps such as the demoulding, ejection, casting post processing are carried out.
Embodiment 1：
Low pressure casting is carried out using aluminum alloy low-pressure casting machine, A356 alloys, low is applied to the aluminium liquid in holding furnace first
Pressure makes its steady liquid that rises fill type, fills type stage spreader shunting is played to aluminium liquid in liter liquid and be oriented to, and fills after type terminates, by positioned at mould
Spreader drive device at the top of tool drives spreader descending, the aluminium liquid entrance of closing sprue bush and die cavity, now in holding furnace
Pressure release, makes the aluminium liquid in sprue bush, thermos cup and stalk be back in holding furnace, and now hydraulic oil cylinder driving utilizes spreader
The ring plug in outside pressurizes to the aluminium liquid of solidification stages, and moulding pressure is 0.1MPa, aluminium liquid is solidified at this pressure, coagulates
After consolidation beam, the normal process steps such as the demoulding, ejection, casting post processing are carried out.
Embodiment 2：
Low pressure casting is carried out using aluminum alloy low-pressure casting machine, A356 alloys, low is applied to the aluminium liquid in holding furnace first
Pressure makes its steady liquid that rises fill type, fills type stage spreader shunting is played to aluminium liquid in liter liquid and be oriented to, and fills after type terminates, by positioned at mould
Spreader drive device at the top of tool drives spreader descending, the aluminium liquid entrance of closing sprue bush and die cavity, now in holding furnace
Pressure release, makes the aluminium liquid in sprue bush, thermos cup and stalk be back in holding furnace, and now hydraulic oil cylinder driving utilizes spreader
The pressure rod of both sides pressurizes to the aluminium liquid of solidification stages, and moulding pressure is 150MPa, aluminium liquid is solidified at this pressure, should
After high-pressure solidification terminates, the normal process steps such as the demoulding, ejection, casting post processing are carried out.
As described above, the present invention closes aluminium liquid entrance by using spreader, holding furnace release after type terminates is being filled so that
Aluminium liquid flows back rapidly, it is to avoid form in liter liquid passage scull, influence subsequent cycle production, while process of setting is not to use
Gas is pressurizeed by holding furnace, but uses independently pressurized mechanism to the aluminium liquid supercharging in die cavity, can consider holding furnace
The influence factors such as intensity, so as to reach pressure value very high, especially the pressure value in embodiment 2, has been even more than extruding casting
The pressure value made, significantly improves the quality of casting.
The above, is only presently preferred embodiments of the present invention, and not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (10)
1. a kind of casting device, including the casting mold with die cavity, the metal for making molten metal rising using gas pressure or electromagnetic force
Liquid rises liquid passage, and described liter liquid passage connects with casting mold die cavity by molten metal entrance, it is characterised in that liter liquid passage with
The molten metal entrance top of casting mold die cavity connection, being provided with can be after cavity filling process terminates by molten metal entrance closing/unlatching
Packaged unit, while described casting device also includes：Die cavity inner metal liquid can be carried out after molten metal entrance is closed
The pressing mechanism of pressurization.
2. the casting device described in claim 2, it is characterised in that the packaged unit is spreader.
3. the casting device described in claim 1 or 2, it is characterised in that described molten metal rises liquid passage and is stalk or emits
Muzzle or thermos cup.
4. the casting device described in claim 1, it is characterised in that also including driving the closure member seals or opening metal
The drive mechanism of liquid entrance.
5. the casting device described in claim 4, it is characterised in that described drive mechanism drive packaged unit rise or under
Drop.
6. the casting device described in claim 1, it is characterised in that described pressing mechanism is ring plug or pressure rod.
7. the antigravity casting machine or extrusion casting machine of casting device described in claim any one of 1-6 are carried.
8. the bob-weight such as low pressure casting, counter-pressure casting, adjustable pressure casting are carried out using the casting device described in claim any one of 1-6
Power casts or using the method for the above-mentioned extrusion casint for filling type mode, including leads to molten metal using gas pressure or electromagnetic force
Cross and rise the cavity filling process that liquid passage enters casting mold die cavity, and the supercharging process of setting filled after type, it is characterised in that described fills
After type process terminates, the entrance for rising liquid passage and die cavity molten metal will be connected using packaged unit and is closed, then using pressuring machine
Structure pressurizes to the molten metal in die cavity.
9. the method described in claim 8, it is characterised in that filling after type terminates and close molten metal entrance, rising in liquid passage
Molten metal be back in crucible or holding furnace.
10. the method described in claim 8, it is characterised in that the pressure that the pressing mechanism applies to the molten metal in die cavity
Scope is 0.1MPa-150Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247574.4A CN106735086B (en) | 2016-12-29 | 2016-12-29 | A kind of casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611247574.4A CN106735086B (en) | 2016-12-29 | 2016-12-29 | A kind of casting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106735086A true CN106735086A (en) | 2017-05-31 |
| CN106735086B CN106735086B (en) | 2018-05-01 |
Family
ID=58927531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611247574.4A Active CN106735086B (en) | 2016-12-29 | 2016-12-29 | A kind of casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106735086B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080601A (en) * | 2017-12-31 | 2018-05-29 | 北京航空航天大学 | A kind of low-pressure charging casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure |
| CN108097923A (en) * | 2017-12-31 | 2018-06-01 | 北京航空航天大学 | A kind of differential pressure pressurization casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure |
| CN108296468A (en) * | 2017-12-31 | 2018-07-20 | 北京航空航天大学 | A kind of pressure regulation supercharging casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure |
| CN108326256A (en) * | 2017-12-31 | 2018-07-27 | 北京航空航天大学 | A kind of low pressure fills type High Pressure Solidification casting device and casting method |
| JP2021098219A (en) * | 2019-12-23 | 2021-07-01 | 本田金属技術株式会社 | Casting die and aluminum casting method |
| CN114346178A (en) * | 2021-12-20 | 2022-04-15 | 苏州明志科技股份有限公司 | Casting process and casting system |
| CN114599465A (en) * | 2019-12-23 | 2022-06-07 | 本田金属技术株式会社 | Aluminum casting method and mold |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5906235A (en) * | 1995-06-16 | 1999-05-25 | Thomas Robert Anthony | Pressurized squeeze casting apparatus and method and low pressure furnace for use therewith |
| US20070215308A1 (en) * | 2004-05-18 | 2007-09-20 | Nagayoshi Matsubara | Vertical Casting Apparatus and Vertical Casting Method |
| CN201127988Y (en) * | 2007-10-24 | 2008-10-08 | 曾奇中 | High-pressure casting mold capable of improving low-pressure casting machine into high-pressure casting machine |
| CN101618450A (en) * | 2009-07-21 | 2010-01-06 | 华南理工大学 | Method for indirect extrusion casting by utilizing filling of electromagnetic force and device thereof |
| CN101623749A (en) * | 2008-07-13 | 2010-01-13 | 曾奇中 | Pressure casting die and low-pressure casting machine capable of generating high pressure |
| CN102029383A (en) * | 2010-12-14 | 2011-04-27 | 何丙军 | Aluminum alloy wheel gravity casting die and casting method thereof |
| JP2014136252A (en) * | 2013-01-18 | 2014-07-28 | Ube Machinery Corporation Ltd | Casting apparatus |
| CN104959573A (en) * | 2015-07-07 | 2015-10-07 | 清华大学 | Integrated low-pressure mould-filling and squeezing solidification casting device and method |
-
2016
- 2016-12-29 CN CN201611247574.4A patent/CN106735086B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5906235A (en) * | 1995-06-16 | 1999-05-25 | Thomas Robert Anthony | Pressurized squeeze casting apparatus and method and low pressure furnace for use therewith |
| US20070215308A1 (en) * | 2004-05-18 | 2007-09-20 | Nagayoshi Matsubara | Vertical Casting Apparatus and Vertical Casting Method |
| CN201127988Y (en) * | 2007-10-24 | 2008-10-08 | 曾奇中 | High-pressure casting mold capable of improving low-pressure casting machine into high-pressure casting machine |
| CN101623749A (en) * | 2008-07-13 | 2010-01-13 | 曾奇中 | Pressure casting die and low-pressure casting machine capable of generating high pressure |
| CN101618450A (en) * | 2009-07-21 | 2010-01-06 | 华南理工大学 | Method for indirect extrusion casting by utilizing filling of electromagnetic force and device thereof |
| CN102029383A (en) * | 2010-12-14 | 2011-04-27 | 何丙军 | Aluminum alloy wheel gravity casting die and casting method thereof |
| JP2014136252A (en) * | 2013-01-18 | 2014-07-28 | Ube Machinery Corporation Ltd | Casting apparatus |
| CN104959573A (en) * | 2015-07-07 | 2015-10-07 | 清华大学 | Integrated low-pressure mould-filling and squeezing solidification casting device and method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080601A (en) * | 2017-12-31 | 2018-05-29 | 北京航空航天大学 | A kind of low-pressure charging casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure |
| CN108097923A (en) * | 2017-12-31 | 2018-06-01 | 北京航空航天大学 | A kind of differential pressure pressurization casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure |
| CN108296468A (en) * | 2017-12-31 | 2018-07-20 | 北京航空航天大学 | A kind of pressure regulation supercharging casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure |
| CN108326256A (en) * | 2017-12-31 | 2018-07-27 | 北京航空航天大学 | A kind of low pressure fills type High Pressure Solidification casting device and casting method |
| JP2021098219A (en) * | 2019-12-23 | 2021-07-01 | 本田金属技術株式会社 | Casting die and aluminum casting method |
| CN114599465A (en) * | 2019-12-23 | 2022-06-07 | 本田金属技术株式会社 | Aluminum casting method and mold |
| US20220371085A1 (en) * | 2019-12-23 | 2022-11-24 | Honda Foundry Co., Ltd. | Aluminum casting method and mold |
| CN114346178A (en) * | 2021-12-20 | 2022-04-15 | 苏州明志科技股份有限公司 | Casting process and casting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106735086B (en) | 2018-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106735086B (en) | A kind of casting device | |
| CN101274361B (en) | Low speed vacuum squeeze casting technology | |
| US2181157A (en) | Method and apparatus for pressure casting | |
| CN103990775B (en) | Extruding metal autoform method and its product | |
| CN105880486B (en) | A kind of mold and method of casting hub | |
| CN104014760B (en) | A kind of die casting that can prevent foundry goods shrinkage cavity and its extrusion process | |
| CN201147834Y (en) | Cast die having secondary extrusion mechanism | |
| CN105945255B (en) | Thin-wall part die casting and die-cast formation equipment | |
| CN104139169B (en) | Casting and forging method and casting and forging device | |
| CN108326256A (en) | A kind of low pressure fills type High Pressure Solidification casting device and casting method | |
| CN114603101A (en) | High-pressure filling type direct extrusion solidification composite die-casting die device | |
| CN206382536U (en) | Thin-wall part die casting and die-cast formation equipment | |
| JP3275052B2 (en) | Vertical die casting method and equipment | |
| CN109047703A (en) | Middle pressure antigravity casting technique | |
| CN101774007B (en) | Alloy liquid extrusion casting and forming device and technical method thereof | |
| CN201768895U (en) | Casting die vacuumizing structure | |
| CN108097923A (en) | A kind of differential pressure pressurization casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure | |
| CN108296468A (en) | A kind of pressure regulation supercharging casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure | |
| CN106623856B (en) | A kind of method and apparatus improving extrusion casint Piston Casting quality | |
| CN101623749A (en) | Pressure casting die and low-pressure casting machine capable of generating high pressure | |
| CN205869404U (en) | Casting wheel hub's mould | |
| CN105251962A (en) | Hot chamber die casting machine of vacuum pump | |
| CN202667602U (en) | Device for performing vacuum die casting on roulette workpieces | |
| CN216370114U (en) | Device for non-solid die forging grinding ball | |
| CN205996154U (en) | String cylinder extrusion casting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210826 Address after: Room 516, Weishi building, 39 Xueyuan Road, Haidian District, Beijing 100191 Patentee after: BEIJING HANGDA NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 100191 No. 37, Haidian District, Beijing, Xueyuan Road Patentee before: BEIHANG University |