CN111020247A - Casting, smelting and degassing equipment for non-ferrous metal alloy material - Google Patents
Casting, smelting and degassing equipment for non-ferrous metal alloy material Download PDFInfo
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- CN111020247A CN111020247A CN201911180921.XA CN201911180921A CN111020247A CN 111020247 A CN111020247 A CN 111020247A CN 201911180921 A CN201911180921 A CN 201911180921A CN 111020247 A CN111020247 A CN 111020247A
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- sliding shaft
- smelting
- driving mechanism
- shaft
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
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- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a casting, smelting and degassing device for non-ferrous metal alloy materials, which comprises a smelting furnace, a first driving mechanism, a second driving mechanism, a rotating shaft and a sliding shaft, wherein a bracket is arranged outside the smelting furnace; the sliding shaft is provided with a nozzle which is positioned in the smelting furnace, the nozzle is provided with a plurality of spray holes, the spray holes are communicated with the air cavity and used for spraying air into the smelting furnace, the sliding shaft is connected with a second driving mechanism, the sliding shaft is driven by the second driving mechanism to reciprocate along the central axis of the rotating shaft, and the nozzle moves along with the movement of the sliding shaft and is always positioned above the blades. When the invention is applied, the sprayed gas can quickly and uniformly fill the whole liquid aluminum alloy, and the invention has higher degassing efficiency.
Description
Technical Field
The invention relates to the technical field of metal casting and smelting, in particular to casting, smelting and degassing equipment for a non-ferrous metal alloy material.
Background
The cast aluminum alloy has the advantages of high specific strength, low density, good casting formability, excellent thermal conductivity and the like, and is widely applied to industrial production of engine pistons, cylinder bodies, cylinder covers, brackets and the like for aviation, aerospace and motor vehicles. In the process of smelting the aluminum alloy, the temperature of the aluminum liquid is higher and reaches about 750 ℃, and at such high temperature, the aluminum liquid can absorb vapor in the air, the water can be decomposed into hydrogen and oxygen at high temperature, wherein the oxygen and the aluminum liquid directly react to generate aluminum oxide, so that the surface of the cast aluminum alloy is rough on the one hand, and on the other hand, the aluminum oxide has higher hardness, so that the abrasion of a die for manufacturing products is fast, the service life of the die is influenced, and the hydrogen can form bubbles inside the aluminum alloy, thereby influencing the strength of the aluminum alloy.
In the related art, hydrogen generated during the melting of aluminum alloy is generally removed by a degassing apparatus. The degassing apparatus breaks up large bubbles of inert gas into very fine small bubbles by a rotor rotating at high speed and spraying the inert gas, and uniformly disperses the small bubbles in the molten metal. By reducing the diameter of the bubbles, the surface area of the inert gas is increased sharply, so that more inert gas surfaces are contacted with hydrogen and impurities in the molten metal and the hydrogen or the impurities are removed from the molten aluminum along with the rising of the bubbles.
For example, in patent application No. CN201410142947.6, published 2015, 10, 14, an apparatus for degassing aluminum melt is disclosed, which comprises a degassing rotor mechanism, wherein the degassing rotor mechanism comprises: a drive motor having a motor output shaft; the rotor joint comprises a connecting shaft and an air inlet chamber, the connecting shaft is provided with a first ventilation flow channel and is coaxially connected to the output shaft of the motor in a transmission way, and the first ventilation flow channel is communicated with the air inlet chamber; and the degassing rotor is provided with a second air channel and is coaxially connected to the connecting shaft in a transmission way, and the second air channel is communicated with the first air channel and the outside. According to the technical scheme, the second flow channel of the degassing rotor sprays the inert gas to the outside to realize degassing, however, the second flow channel is only arranged around the degassing rotor, and the inert gas sprayed out through the second flow channel cannot be uniformly sprayed into the smelting furnace in practical application, so that the hydrogen in the aluminum alloy solution is easily treated unclean, and the quality of the produced aluminum alloy is reduced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a casting, smelting and degassing device for non-ferrous metal alloy materials, which can uniformly spray inert gas into a smelting furnace so as to improve the degassing efficiency.
A casting, smelting and degassing device for non-ferrous metal alloy materials is characterized by comprising a smelting furnace, a first driving mechanism, a second driving mechanism, a rotating shaft and a sliding shaft; a bracket is arranged outside the smelting furnace, and the first driving mechanism and the second driving mechanism are arranged on the bracket; the rotating shaft is vertically arranged, is connected with the first driving mechanism and is driven by the first driving mechanism to rotate around the central axis of the rotating shaft; blades are arranged on the rotating shaft and are positioned in the smelting furnace; the sliding shaft is vertically arranged, an air cavity is defined in the sliding shaft and is communicated with an air source; a spray head is arranged on the sliding shaft, the spray head is positioned in the smelting furnace, a plurality of spray holes are arranged on the spray head, and the spray holes are communicated with the air cavity and used for spraying air into the smelting furnace; the sliding shaft is connected with the second driving mechanism, the sliding shaft is driven by the second driving mechanism to reciprocate along the central axis of the rotating shaft, and the spray head moves along with the movement of the sliding shaft and is always positioned above the blades.
Further, the first driving mechanism comprises a first motor, the rotating shaft is connected with an output shaft of the first motor, and the first motor is mounted on the bracket; the blade has a plurality ofly, and a plurality ofly the blade is followed the circumference evenly distributed of pivot.
Further, the second driving mechanism comprises a second motor, a cam and a reset mechanism; the second motor is arranged on the bracket, the cam is connected with the second motor, and the cam is driven by the second motor to rotate; the reset mechanism comprises a spring, a connecting plate is arranged on the sliding shaft and located outside the smelting furnace, the spring is located below the connecting plate and connected with the connecting plate and the support respectively, and the spring is used for enabling the sliding shaft to be always abutted to the cam.
Furthermore, a supporting plate is arranged on the sliding shaft and located outside the smelting furnace, and a roller is arranged on the supporting plate and is always abutted to the cam.
Furthermore, the support is provided with a vertical guide rod, the connecting plate is provided with a guide hole, the guide rod upwards penetrates through the guide hole, the upper end of the guide rod is provided with a baffle, and the spring is sleeved on the guide rod.
Furthermore, the number of the spray heads is multiple, and the spray heads are uniformly distributed along the circumferential direction of the sliding shaft; the spray head is provided with a plurality of spray holes.
Further, the aperture of the spray hole is gradually reduced along the flow direction of the airflow flowing through the spray hole.
Furthermore, the sliding shaft is provided with a mounting hole, the mounting hole penetrates through the sliding shaft along the axial direction of the sliding shaft, and the sliding shaft is slidably sleeved on the rotating shaft through the mounting hole.
Furthermore, a flow guide surface is arranged in the air cavity and used for guiding the airflow in the air cavity to the spray head.
Compared with the prior art, the invention has the following beneficial effects:
in practical application, the first driving mechanism drives the rotating shaft to rotate, and the blades move along with the rotating shaft, so that a stirring effect can be exerted on liquid aluminum alloy in the smelting furnace, the liquid aluminum alloy can rotate along with the rotating direction of the rotating shaft, and gas ejected from the spray holes can be uniformly contacted with the aluminum alloy to degas; in addition, the second driving mechanism can also drive the sliding shaft to vertically reciprocate, the spray head also can vertically reciprocate along with the sliding shaft, so that gas sprayed out of the spray holes can be further contacted with aluminum alloy at different depths, and the gas can be diffused from two directions to be rapidly and uniformly filled with the whole liquid aluminum alloy, so that quick degassing is realized, high degassing efficiency is realized, and the practicability is high.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts:
FIG. 1 is a perspective view of one aspect of the present invention;
FIG. 2 is a perspective view of another aspect of the present invention;
FIG. 3 is a perspective view of the interior of the melting furnace of the present invention;
FIG. 4 is a perspective view of the present invention with the melting furnace and supports removed;
FIG. 5 is a cut-away perspective view of the slide shaft of the present invention;
fig. 6 is a sectional view of the lower part structure of the slide shaft of the invention.
Reference numerals:
a smelting furnace 1; a bracket 2; a guide rod 21; a baffle 22;
a first drive mechanism 3; a first motor 31;
a second drive mechanism 4; a second motor 41; a cam 42; a reset mechanism 43; a spring 44;
a rotating shaft 5; a blade 51;
a slide shaft 6; an air cavity 61; a flow guide surface 62; a connecting plate 63; a support plate 64; a roller 65; and a mounting hole 66.
A spray head 7; a nozzle hole 71; and a spray chamber 72.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", "axial", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the terms "some embodiments," "alternative embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Example 1
The casting, smelting and degassing equipment for the non-ferrous metal alloy material as shown in the figures 1-4 comprises a smelting furnace 1, a first driving mechanism 3, a second driving mechanism 4, a rotating shaft 5 and a sliding shaft 6.
As shown in fig. 1 and 2, the shape of the melting furnace 1 roughly includes an upper hemispherical structure, a middle cylindrical structure, and a lower hemispherical structure, and the melting furnace 1 can be used for casting and melting aluminum alloy. Smelting furnace 1 outside is equipped with support 2, and support 2 sets up at smelting furnace 1 top, and in the practical application, support 2 can weld or install on smelting furnace 1 through connecting pieces such as bolts.
As shown in fig. 3 and 4, the first driving mechanism 3 and the second driving mechanism 4 are provided on the carriage 2, and both the first driving mechanism 3 and the second driving mechanism 4 are located outside the melting furnace 1. 5 vertical layout of pivot, the smelting furnace 1 is stretched out to the upper end of pivot 5 and is linked to each other with first actuating mechanism 3, the lower extreme of pivot 5 is located smelting furnace 1 inside, pivot 5 is ordered about by first actuating mechanism 3 and is rotated around self central axis, be equipped with blade 51 in the pivot 5, blade 51 is located smelting furnace 1 inside to when first actuating mechanism 3 orders about pivot 5 and rotates, blade 51 also can be along with rotating, therefore, blade 51 can play the stirring effect to the liquid aluminum alloy in the smelting furnace 1.
As shown in fig. 3, 4 and 5, the sliding shaft 6 is vertically arranged, the upper end of the sliding shaft 6 extends out of the smelting furnace 1 and is connected with the second driving mechanism 4, the lower end of the sliding shaft 6 is positioned inside the smelting furnace 1, an air cavity 61 is defined in the sliding shaft 6, the air cavity 61 is communicated with an air source, in practical application, the air source can supply inert gas into the air cavity 61 through a pipeline, a nozzle 7 is arranged on the sliding shaft 6, the nozzle 7 is positioned inside the smelting furnace 1, a plurality of spray holes 71 are arranged on the nozzle 7, and the spray holes 71 are communicated with the air cavity 61, so that the gas supplied by the air source can flow to the nozzle 7 through the air cavity 61 and is sprayed to the smelting.
The sliding shaft 6 is connected with the second driving mechanism 4, the sliding shaft 6 is driven by the second driving mechanism 4 to reciprocate along the central axis of the rotating shaft 5, namely, the sliding shaft 6 can move up and down, the spray head 7 can also move along with the movement of the sliding shaft 6, and in order to avoid the interference between the spray head 7 and the blade 51 in the moving process, the spray head 7 and the blade 51 are always spaced and are always positioned above the blade 51.
In practical application, the first driving mechanism 3 drives the rotating shaft 5 to rotate, and the blades 51 move along with the rotating shaft 5, so that the liquid aluminum alloy in the smelting furnace 1 can be stirred, the liquid aluminum alloy can rotate along with the rotating direction of the rotating shaft 5, and therefore gas ejected from the spray holes 71 can be uniformly contacted with the aluminum alloy for degassing; in addition, the second driving mechanism 4 can also drive the sliding shaft 6 to vertically reciprocate, the spray head 7 also can vertically reciprocate along with the sliding shaft 6, and therefore gas sprayed out of the spray hole 71 can further contact with aluminum alloys at different depths, so that the gas can be diffused from two directions to quickly and uniformly fill the whole liquid aluminum alloy, quick degassing is facilitated, high degassing efficiency is achieved, and the practicability is high.
As shown in fig. 1, 3 and 4, in this embodiment, the first driving mechanism 3 includes a first motor 31, an upper end of the rotating shaft 5 is coaxially connected to an output shaft of the first motor 31, the first motor 31 is fixedly mounted on the bracket 2, a plurality of blades 51 are provided, and the plurality of blades 51 are uniformly distributed along a circumferential direction of the rotating shaft 5, so as to facilitate enhancing a stirring effect on the liquid aluminum alloy. Alternatively, there are four blades 51. In the description of the present invention, "a plurality" means two or more.
As shown in fig. 1 to 4, in the present embodiment, the second driving mechanism 4 includes a second motor 41, a cam 42 and a reset mechanism 43, the second motor 41 is fixedly installed on the bracket 2, the second motor 41 is located at the right side of the slide shaft 6, the cam 42 is approximately elliptical in shape, the cam 42 is connected to the second motor 41, the cam 42 is driven by the second motor 41 to rotate, and the rotation axis of the cam 42 is horizontally arranged.
In order to reduce the wear of the sliding shaft 6 and the cam 42, in the present embodiment, a support plate 64 is provided on the right side of the sliding shaft 6, the support plate 64 is located outside the melting furnace 1, a roller 65 is provided on the support plate 64, the roller 65 is located directly below the cam 42, and the roller 65 is always in contact with the cam 42.
As shown in fig. 4 and 5, in this embodiment, a vertical mounting hole 66 is formed in the sliding shaft 6, the mounting hole 66 penetrates through the upper end and the lower end of the sliding shaft 6 along the axial direction of the sliding shaft 6, and the sliding shaft 6 can be slidably sleeved on the rotating shaft 5 through the mounting hole 66, so that the rotating shaft 5 can play a certain guiding role on the sliding shaft 6, and the structure can be more compact after the sliding shaft 6 and the rotating shaft 5 are coaxially arranged.
In order to avoid the phenomenon that the spring 44 is twisted and the like to influence the sliding of the sliding shaft 6, in the embodiment, the vertical guide rod 21 is arranged on the bracket 2, the vertical guide hole is arranged on the connecting plate 63, the guide rod 21 upwards passes through the guide hole, the upper end of the guide rod 21 is provided with the baffle 22, the baffle 22 can prevent the connecting plate 63 from being separated from the guide rod 21, and the spring 44 is sleeved on the guide rod 21.
Example 2
Example 2 is a further improvement on example 1.
As shown in fig. 4 and 5, in the present embodiment, there are a plurality of spray heads 7, the plurality of spray heads 7 are uniformly distributed along the circumferential direction of the sliding shaft 6, specifically, there are four spray heads 7, the spray heads 7 are substantially cylindrical structures with one open end and the other closed end, the spray heads 7 are perpendicular to the sliding shaft 6, the spray heads 7 have spray cavities 72, the spray cavities 72 are communicated with the air cavity 61 of the sliding shaft 6 through the open ends, the spray heads 7 are provided with a plurality of spray holes 71, and the spray holes 71 are communicated with the spray cavities 72, so that the spray heads 7 have better air injection effect.
As shown in fig. 6, in the present embodiment, the aperture of the nozzle hole 71 gradually decreases along the flow direction of the air flow flowing through the nozzle hole 71, for example, taking the upper row of nozzle holes 71 as an example, the air flow flowing through the row of nozzle holes 71 flows from bottom to top, wherein the aperture of the nozzle hole 71 gradually decreases in the direction from bottom to top, so as to increase the injection speed of the air flow, which is beneficial to making the air flow have a longer injection distance.
As shown in fig. 6, since the nozzle 7 is perpendicular to the sliding shaft 6, when the air flow enters the spray cavity 72 from the air cavity 61, a large impact is generated on the bottom cavity wall of the air cavity 61, and the air flow is not easy to enter the spray cavity 72, so that the flow guide surface 62 is arranged in the air cavity 61, and in the top-to-bottom direction, the flow guide surface 62 is inclined toward the direction close to the nozzle 7, so that the air flow in the air cavity 61 can be conveniently guided to the nozzle 7.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A casting, smelting and degassing device for non-ferrous metal alloy materials is characterized by comprising a smelting furnace, a first driving mechanism, a second driving mechanism, a rotating shaft and a sliding shaft;
a bracket is arranged outside the smelting furnace, and the first driving mechanism and the second driving mechanism are arranged on the bracket;
the rotating shaft is vertically arranged, is connected with the first driving mechanism and is driven by the first driving mechanism to rotate around the central axis of the rotating shaft; blades are arranged on the rotating shaft and are positioned in the smelting furnace;
the sliding shaft is vertically arranged, an air cavity is defined in the sliding shaft and is communicated with an air source; a spray head is arranged on the sliding shaft, the spray head is positioned in the smelting furnace, a plurality of spray holes are arranged on the spray head, and the spray holes are communicated with the air cavity and used for spraying air into the smelting furnace;
the sliding shaft is connected with the second driving mechanism, the sliding shaft is driven by the second driving mechanism to reciprocate along the central axis of the rotating shaft, and the spray head moves along with the movement of the sliding shaft and is always positioned above the blades.
2. A casting, smelting and degassing apparatus for a non-ferrous metal alloy material as recited in claim 1, wherein said first drive mechanism includes a first motor, said shaft is connected to an output shaft of said first motor, and said first motor is mounted on said carriage; the blade has a plurality ofly, and a plurality ofly the blade is followed the circumference evenly distributed of pivot.
3. A non-ferrous metal alloy material casting, smelting and degassing apparatus as claimed in claim 1, wherein said second drive mechanism includes a second motor, a cam and a return mechanism;
the second motor is arranged on the bracket, the cam is connected with the second motor, and the cam is driven by the second motor to rotate;
the reset mechanism comprises a spring, a connecting plate is arranged on the sliding shaft and located outside the smelting furnace, the spring is located below the connecting plate and connected with the connecting plate and the support respectively, and the spring is used for enabling the sliding shaft to be always abutted to the cam.
4. A casting, smelting and degassing device for a non-ferrous metal alloy material according to claim 3, wherein a support plate is arranged on the sliding shaft and located outside the smelting furnace, and a roller is arranged on the support plate and is always abutted against the cam.
5. A non-ferrous metal alloy material casting, smelting and degassing device as claimed in claim 3, wherein the support is provided with a vertical guide rod, the connecting plate is provided with a guide hole, the guide rod passes upwards through the guide hole, the upper end of the guide rod is provided with a baffle, and the spring is sleeved on the guide rod.
6. A casting, smelting and degassing apparatus for a nonferrous alloy material according to claim 1, wherein the number of the spray heads is plural, and the plural spray heads are uniformly distributed in a circumferential direction of the slide shaft; the spray head is provided with a plurality of spray holes.
7. A non-ferrous metal alloy material casting, smelting and degassing apparatus as claimed in claim 1, wherein the orifice diameter of said orifice is progressively reduced in the direction of gas flow through said orifice.
8. The casting, smelting and degassing equipment for nonferrous alloy materials according to claim 1, wherein the sliding shaft is provided with a mounting hole, the mounting hole penetrates through the sliding shaft along the axial direction of the sliding shaft, and the sliding shaft is slidably sleeved on the rotating shaft through the mounting hole.
9. The nonferrous alloy material casting, smelting and degassing apparatus of claim 1 wherein the air chamber has deflector surfaces therein for directing the air flow in the air chamber to the showerhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911180921.XA CN111020247A (en) | 2019-11-27 | 2019-11-27 | Casting, smelting and degassing equipment for non-ferrous metal alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911180921.XA CN111020247A (en) | 2019-11-27 | 2019-11-27 | Casting, smelting and degassing equipment for non-ferrous metal alloy material |
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| CN111020247A true CN111020247A (en) | 2020-04-17 |
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| CN201911180921.XA Pending CN111020247A (en) | 2019-11-27 | 2019-11-27 | Casting, smelting and degassing equipment for non-ferrous metal alloy material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116043044A (en) * | 2022-12-01 | 2023-05-02 | 徐应学 | Preparation process of high-strength aluminum alloy precision casting plate |
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2019
- 2019-11-27 CN CN201911180921.XA patent/CN111020247A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116043044A (en) * | 2022-12-01 | 2023-05-02 | 徐应学 | Preparation process of high-strength aluminum alloy precision casting plate |
| CN116043044B (en) * | 2022-12-01 | 2024-06-28 | 曲靖市万东铝业有限责任公司 | Preparation process of high-strength aluminum alloy precision casting plate |
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Application publication date: 20200417 |