CN207494536U - A kind of low pressure casting rises liquid device - Google Patents
A kind of low pressure casting rises liquid device Download PDFInfo
- Publication number
- CN207494536U CN207494536U CN201721638472.5U CN201721638472U CN207494536U CN 207494536 U CN207494536 U CN 207494536U CN 201721638472 U CN201721638472 U CN 201721638472U CN 207494536 U CN207494536 U CN 207494536U
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- CN
- China
- Prior art keywords
- pneumatic valve
- operated pneumatic
- stalk
- inlet
- holding furnace
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Abstract
The utility model discloses a kind of low pressure castings to rise liquid device, including holding furnace, the upper port of holding furnace is covered with sealing cover, sealing cover center is equipped with stalk, stalk lower end extends to the lower part of holding furnace, the lower port closing of stalk, the lower circumferential of stalk is equipped with inlet, operated pneumatic valve is equipped at inlet, the stalk circumference of inlet side is equipped with the operated pneumatic valve chamber that can accommodate operated pneumatic valve, the upper and lower ends of inlet and operated pneumatic valve chamber are respectively equipped with the door track slided for operated pneumatic valve, the upper and lower ends of operated pneumatic valve intracavitary end have been respectively fixedly connected with tension spring, the other end of tension spring extends along the circular arc of operated pneumatic valve chamber and is connected on the doorframe of operated pneumatic valve respectively；The inert gas axial channel penetrated through in an axial direction is additionally provided in the circumferential wall of stalk, the middle part of operated pneumatic valve intracavitary end promotes mouth to be connected with inert gas axial channel by shutdown.The device can reduce the waste of aluminium alloy, improve the quality of aluminium alloy.
Description
Technical field
The utility model is related to a kind of running gate systems more particularly to a kind of low pressure casting to rise liquid device, belongs to metal casting
Technical field.
Background technology
Low Pressure Casting Technology is to realize the important measures that casting lacks surplus, processed without surplus, while is also automobile casting essence
Densification is thinning, the important means of lightweight and energy-saving.Later stage nineties countries in the world are higher and higher to castings desire, casting
The precise treatment of part, be thinning, lightweight and Labor-saving have become the main direction of foundry engieering development, Low Pressure Casting Technology is by chance
It disclosure satisfy that above-mentioned requirements.But it is still necessary to be further improved and carry in terms of equipment, mold, technique and automation for current low pressure casting
It is high.
The most basic feature of low pressure casting is that molten metal from bottom to top fills casting mold in crucible, and stalk sectional area all compares
Larger, metal flow quantity is big, but flow velocity is not high.The general stalk inner metal liquid rate of climb is 0.05~0.2 m/s, and flowing is non-
Chang Pingwen, and the oxidation film of molten metal forward constantly ruptures and tends to stalk tube wall, few stomata and slag inclusion in casting.Reduced pressure
Type is filled in casting, and in piston press cylinder, piston is promoted aluminium alloy with 1~2 m/s speed, after extrusion cylinder, with the speed that is exceedingly fast
Supercharging, and since ingate sectional area is small, firing rate at ingate is caused to be up to 20~50 m/s, therefore more seem that low pressure casting fills
The stationarity of type.Since in low pressure casting casting casting can be increased substantially with heat treatment method without bubble, this casting
The mechanical property of material, this basic characteristics will be fully guaranteed and develop in following low-pressure die casting plant.
In low pressure casting process, according to casting section thickness, alloy designations and casting mold situation, in Liquid Level Pressure parameter it is general all
Establish a liter liquid → fill type → crust (only sand mold) → several stage parameters of boosting → pressurize → release, with ensure to fill type it is steady,
Smooth in exhaust and the solidification and crystallization under pressure head as big as possible.The needs of this technique, at present can not possibly also be completely in equipment
It is guaranteed, this will need further to improve and ensure in future.
During casting smelting, first go bad, refine degasification, general degasification carbon trichloride afterwards, but penetrating odor can be generated, and
And environment easy to pollute.Usually refining is operated under open space, is easily contacted with air, and aluminium alloy is easily and protium is anti-
Should, so refining degasification in open space, it is impossible to which processing is clean completely.
Traditional stalk shape is single, and aperture is single, simple in structure, and function lacks, and only plays the role of drainage；Cause
Magnesium alloy is oxidizable, rises liquid and is easy to generate secondary oxidation in the process, traditional stalk is straight tube, it is impossible to meet cast liter liquid
The effect of current stabilization skimming in the process easily makes aluminium alloy generate the bad phenomenons such as flow fluctuation, volume gas.When ftercompction rises liquid
It waits, because the lower port of traditional stalk is directly to furnace bottom, because furnace bottom has part slag inclusion, to prevent stalk slag absorbing, in cast,
Stalk lower end must keep a distance from furnace bottom so that cannot be used with regard to 1/4 to 1/5 aluminium alloy, cause waste of material.
Utility model content
The purpose of this utility model is that overcoming problems of the prior art, a kind of low pressure casting is provided and rises liquid dress
It puts, it is possible to reduce the waste of aluminium alloy improves the quality of aluminium alloy.
For solution more than technical problem, a kind of low pressure casting of the utility model rises liquid device, including holding furnace, the guarantor
The upper port of warm stove is equipped with stalk covered with sealing cover, the center of the sealing cover, and the lower end of the stalk extends to
The lower part of the holding furnace, the lower port closing of the stalk, the lower circumferential of the stalk is equipped with inlet, described
The operated pneumatic valve that can inlet closed or be opened is equipped at inlet, the stalk circumference of the inlet side is equipped with can
The upper and lower ends of the operated pneumatic valve chamber of receiving operated pneumatic valve, the inlet and operated pneumatic valve chamber are respectively equipped with to be slided for operated pneumatic valve
Dynamic door track, the upper and lower ends of the operated pneumatic valve intracavitary end have been respectively fixedly connected with tension spring, the other end point of the tension spring
Do not extend along the circular arc of operated pneumatic valve chamber and be connected on the doorframe of operated pneumatic valve；Edge is additionally provided in the circumferential wall of the stalk
Axially through inert gas axial channel, the middle part of the operated pneumatic valve intracavitary end passes through shutdown and promotes mouth and the inertia
Gas axial channel is connected.
Relative to the prior art, the utility model achieves following advantageous effect：Inlet is arranged on the lower end of stalk
On circumference, it is not easy to suck the slag inclusion of holding furnace furnace bottom, the distance of stalk lower end and furnace bottom can be shortened, reduce aluminium alloy
Waste of material.By aluminium alloy after stove endometamorphism, mould assembling, joint sealing operation, then by high-pressure inert gas are directly carried out
Inert gas axial channel is inputted, a part of inert gas promotes mouth to enter operated pneumatic valve chamber, pushes operated pneumatic valve gram from closing the door
Inlet is closed in the tension advance for taking tension spring, and another part inert gas carries out aluminium alloy refining towards aluminium alloy bottom and removes
Gas carries out degasification in the environment of closing so that the space that aluminium alloy is contacted with air is limited, considerably increases refining degasification
Effect improves the quality of aluminium alloy；Using inert gas deaeration, safety is pollution-free, efficient.It is parked in after refining defeated
Enter inert gas, operated pneumatic valve is retracted under the action of tension spring in operated pneumatic valve chamber, and inlet is opened, on sealing cover into
Tracheae air inlet, aluminium alloy enter stalk inner cavity, and the cavity for carrying out casting mold fills type.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description, attached drawing only provides ginseng
It examines and illustrates to use, it is non-limiting the utility model.
Fig. 1 is the structure diagram that the utility model low pressure casting rises liquid device.
Fig. 2 is the front view of stalk in Fig. 1.
Fig. 3 be Fig. 2 in inert gas aeration status along the sectional view of A-A.
Fig. 4 is that inert gas holds one's breath state along the sectional view of A-A in Fig. 2.
Fig. 5 is the stereogram that Fig. 2 inlets are in opening state.
Fig. 6 is the sectional view of Fig. 5 inert gas aeration status.
Fig. 7 is that Fig. 5 inert gases are held one's breath the sectional view of state.
In figure：1. holding furnace；2. sealing cover；3. stalk；3a. inlets；3b. inert gas axial channels；3c. closes the door
Promote mouth；3d. operated pneumatic valve chambers；3e. door tracks；4. operated pneumatic valve；5. tension spring；6. air inlet pipe；7. casting mold.
Specific embodiment
As shown in Figures 1 to 7, the low pressure casting of the utility model rises liquid device, including holding furnace 1, the upper end of holding furnace 1
Mouth is covered with sealing cover 2, and the center of sealing cover 2 is equipped with stalk 3, and the lower end of stalk 3 extends to the lower part of holding furnace 1,
The lower port closing of stalk 3, the lower circumferential of stalk 3 are equipped with inlet 3a, and being equipped at inlet 3a can be by inlet
Closing or the operated pneumatic valve 4 opened, the stalk circumference of inlet 3a sides are equipped with the operated pneumatic valve that can accommodate operated pneumatic valve 4
The upper and lower ends of chamber 3d, inlet 3a and operated pneumatic valve chamber 3d are respectively equipped with the door track 3e slided for operated pneumatic valve 4, operated pneumatic valve
The upper and lower ends of chamber 3d inner terminations have been respectively fixedly connected with tension spring 5, and the other end of tension spring 5 is respectively along the circular arc of operated pneumatic valve chamber 3d
Extend and be connected on the doorframe of operated pneumatic valve 4；It is axial that the inert gas penetrated through in an axial direction is additionally provided in the circumferential wall of stalk 3
Duct 3b, the middle part of operated pneumatic valve intracavitary end promote mouth 3c to be connected with inert gas axial channel 3b by shutdown.
Inlet 3a is arranged on the lower circumferential of stalk 3, it is not easy to be sucked the slag inclusion of 1 furnace bottom of holding furnace, can be contracted
Short 3 lower end of stalk and the distance of furnace bottom reduce the waste of material of aluminium alloy.By aluminium alloy after stove endometamorphism, directly
Tap into row mould assembling, then high-pressure inert gas is inputted inert gas axial channel 3b by joint sealing operation, a part of inert gas from
It closes the door and mouth 3c is promoted to enter operated pneumatic valve chamber 3d, push operated pneumatic valve 4 that the tension of tension spring 5 is overcome to advance and close inlet 3a,
Another part inert gas carries out refining degasification towards aluminium alloy bottom to aluminium alloy, and degasification is carried out in the environment of closing, is made
The space that is contacted with air of aluminium alloy is limited, considerably increase the effect for refining degasification, improve the quality of aluminium alloy；Using
Inert gas deaeration, safety is pollution-free, efficient.Input inert gas is parked in after refining, operated pneumatic valve 4 is in tension spring 5
It under effect, is retracted in operated pneumatic valve chamber 3d, inlet 3a is opened, and 6 air inlet of air inlet pipe on sealing cover 2, aluminium alloy enters liter
Liquid pipe inner cavity, the cavity for carrying out casting mold 7 fill type.
The foregoing is merely the preferable possible embodiments of the utility model, non-therefore limitation the utility model patent
Protection domain.In addition to the implementation, the utility model can also have other embodiment.It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, is all fallen in the protection domain of the requires of the utility model.
Claims (1)
1. a kind of low pressure casting rises liquid device, including holding furnace, the upper port of the holding furnace is covered with sealing cover, the sealing
The center of lid is equipped with stalk, and the lower end of the stalk extends to the lower part of the holding furnace, it is characterized in that：Described liter of liquid
The lower port closing of pipe, the lower circumferential of the stalk are equipped with inlet, and inlet can be sealed by being equipped at the inlet
The operated pneumatic valve for closing or opening, the stalk circumference of the inlet side are equipped with the operated pneumatic valve that can accommodate operated pneumatic valve
The upper and lower ends of chamber, the inlet and operated pneumatic valve chamber are respectively equipped with the door track slided for operated pneumatic valve, the operated pneumatic valve
The upper and lower ends of intracavitary end have been respectively fixedly connected with tension spring, and the other end of the tension spring prolongs respectively along the circular arc of operated pneumatic valve chamber
It stretches and is connected on the doorframe of operated pneumatic valve；It is axial that the inert gas penetrated through in an axial direction is additionally provided in the circumferential wall of the stalk
Duct, the middle part of the operated pneumatic valve intracavitary end promote mouth to be connected with the inert gas axial channel by shutdown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638472.5U CN207494536U (en) | 2017-11-30 | 2017-11-30 | A kind of low pressure casting rises liquid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721638472.5U CN207494536U (en) | 2017-11-30 | 2017-11-30 | A kind of low pressure casting rises liquid device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207494536U true CN207494536U (en) | 2018-06-15 |
Family
ID=62507161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721638472.5U Expired - Fee Related CN207494536U (en) | 2017-11-30 | 2017-11-30 | A kind of low pressure casting rises liquid device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207494536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496225A (en) * | 2020-05-22 | 2020-08-07 | 山西电机制造有限公司 | Low-pressure cast aluminum pressurizing process for cast aluminum rotor of three-phase asynchronous high-voltage motor |
-
2017
- 2017-11-30 CN CN201721638472.5U patent/CN207494536U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496225A (en) * | 2020-05-22 | 2020-08-07 | 山西电机制造有限公司 | Low-pressure cast aluminum pressurizing process for cast aluminum rotor of three-phase asynchronous high-voltage motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 Termination date: 20201130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |