CN216680098U - Die for casting iron alloy - Google Patents
Die for casting iron alloy Download PDFInfo
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- CN216680098U CN216680098U CN202123174954.9U CN202123174954U CN216680098U CN 216680098 U CN216680098 U CN 216680098U CN 202123174954 U CN202123174954 U CN 202123174954U CN 216680098 U CN216680098 U CN 216680098U
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Abstract
The utility model provides a ferroalloy is mould for casting, includes the mould body, is equipped with at least one casting molding groove on the upper surface of mould body, its characterized in that: the die body is made of a copper material or a copper alloy material; the ratio of the volume of the solid portion of the mold body to the total volume of all the casting-molding grooves is (1.3-28): 1. the die for casting the ferroalloy has high enough heat conducting performance and heat absorbing capacity, can quickly cool the high-temperature ferroalloy liquid to form a cast product, and can quickly reduce the temperature of the die through a conventional cooling mode (such as air cooling or air cooling combined with water cooling), thereby being beneficial to prolonging the service life of the die.
Description
Technical Field
The utility model relates to casting forming equipment, in particular to a die for casting ferroalloy.
Background
Many types of ferroalloys exist, including ferrosilicon, ferromanganese, ferrochromium, ferrovanadium, ferronickel, ferroaluminum, industrial silicon and other series of ferroalloys. With the trends of large-scale iron alloy ore furnace, environmental protection requirement, labor cost, integration of casting and crushing and the like, the casting mode of the casting machine will gradually become the mainstream. The casting machine is provided with a large number of moulds for solidifying and forming ferroalloy liquid, the casting temperature of various ferroalloys after being melted is mostly over 1200 ℃, the high-temperature ferroalloy liquid needs to flow into the moulds of the casting machine, heat exchange is generated between the heat absorption capacity of the material of the explorator and the high-temperature ferroalloy liquid, and the high-temperature ferroalloy liquid is cooled and then solidified and formed.
At present, iron molds are generally adopted by molds on casting machines, and the materials of the iron molds are mainly nodular cast iron and gray cast iron. The cast iron has very low heat conductivity, and slow heat absorption and heat dissipation speed, which influences the smooth casting of the alloy. The iron mould needs water cooling in the use process, and the long-time repeated chilling and heating alternate change easily causes local position cracking or breakage of the mould due to local thermal fatigue unevenness, influences the service life of the mould, and influences the production efficiency.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the die for casting the ferroalloy, the die for casting the ferroalloy has high enough heat conducting property and heat absorbing capacity, when the die is used for casting the ferroalloy, high-temperature liquid can be rapidly cooled to form a cast product, and the die can be rapidly cooled after the cast product is demoulded, so that the service life of the die is prolonged. The technical scheme is as follows:
the utility model provides a mould is used in ferroalloy casting, includes the mould body, is equipped with at least one casting shaping groove on the upper surface of mould body, its characterized in that: the die body is made of a copper material or a copper alloy material; the ratio of the volume of the solid portion of the mold body to the total volume of all the molded-in-shape grooves is (1.3-28): 1.
the densities of different ferroalloy materials such as ferrosilicon, ferromanganese, ferrochrome, industrial silicon and the like are different, and the heat released during solidification is also obviously different. Therefore, when casting molding is carried out, the mass ratio of the mold iron of the mold for casting is controlled to be 5 to 30 (preferably 10 to 20) in consideration of the casting molding effect and the cost, that is, the weight of the mold body itself is 5 to 30 times (preferably 10 to 20 times) the weight of the liquid for each casting.
In a preferred embodiment, the mold for casting an iron alloy is a mold for casting industrial silicon, and a ratio of a volume of a substantial portion of a mold body of the mold for casting industrial silicon to a total volume of all casting molding grooves is (1.3 to 7.8): 1. the die can be used for casting and molding industrial silicon. More preferably, the ratio of the volume of the solid part of the mold body of the mold for industrial silicon casting to the total volume of all the casting molding grooves is (2.6-5.2): 1.
in a preferred embodiment, the mold for casting iron alloy is a mold for casting silicon iron, and a ratio of a volume of a substantial portion of a mold body of the mold for casting silicon iron to a total volume of all casting molding grooves is (3.5 to 20.8): 1. the mould can be used for casting and forming ferrosilicon. More preferably, the ratio of the volume of the solid portion of the mold body of the ferrosilicon casting mold to the total volume of all the casting molding grooves is (7-14): 1.
in a preferred embodiment, the mold for casting an iron alloy is a mold for casting ferromanganese, and a ratio of a volume of a solid portion of a mold body of the mold for casting ferromanganese to a total volume of all casting molding grooves is (1.9 to 11.4): 1. the mould can be used for casting and forming ferromanganese. More preferably, the ratio of the volume of the solid portion of the mold body of the mold for ferromanganese casting to the total volume of all the casting grooves is (3.8-7.6): 1.
in a preferred embodiment, the mold for casting iron alloy is a mold for casting ferrochrome, and the ratio of the volume of the solid portion of the mold body of the mold for casting ferrochrome to the total volume of all casting molding grooves is (4.1-24.9): 1. the mould can be used for casting and forming ferrochrome. More preferably, the ratio of the volume of the solid part of the mould body of the mould for ferrochrome casting to the total volume of all the casting shaping grooves is (8.2-16.4): 1.
in a preferred embodiment, the mold for casting a ferroalloy is a mold for casting ferrovanadium, and a ratio of a volume of a substantial portion of a mold body of the mold for casting ferrovanadium to a total volume of all casting molding grooves is (3.9 to 23.2): 1. the die can be used for casting and molding ferrovanadium. More preferably, the ratio of the volume of the solid part of the die body of the die for casting ferrovanadium to the total volume of all the casting molding grooves is (7.8-15.6): 1.
in a preferable embodiment, the mold for ferronickel casting is a mold for ferronickel casting, and a ratio of a volume of a solid portion of a mold body of the mold for ferronickel casting to a total volume of all casting molding grooves is (4.7 to 28): 1. the mould can be used for casting and molding ferronickel. More preferably, the ratio of the volume of the solid part of the die body of the die for casting ferronickel to the total volume of all the casting molding grooves is (9.4-18.8): 1.
in a preferred embodiment, the mold for casting an iron alloy is a mold for casting an aluminum iron, and a ratio of a volume of a substantial portion of a mold body of the mold for casting an aluminum iron to a total volume of all casting molding grooves is (3.2 to 19.4): 1. the die can be used for casting and forming aluminum and iron. More preferably, the ratio of the volume of the solid portion of the mold body of the mold for aluminum iron casting to the total volume of all the casting molding grooves is (6.4-12.8): 1.
the die body of the die for casting the ferroalloy is made of the copper material (pure copper or copper alloy), the die for casting the ferroalloy has high enough heat absorption capacity by utilizing the good heat conduction performance of the copper material and setting the ratio of the volume of the solid part of the die body to the total volume of all the casting forming grooves in a proper range, so that the heat of the high-temperature ferroalloy liquid can be quickly conducted into the die body, the surface layer of the high-temperature ferroalloy liquid in each casting forming groove can be quickly solidified into a solid state (the surface layer can be demoulded after being solidified into the solid state), and the temperature rise amplitude of the die body can be controlled in a proper range. And the copper material has certain ductility, and the elongation thereof is more than 40%, so that the material performance of the copper material can be maintained to a greater extent in the cold and hot change process, the local cracking of the die is not easy to cause, and the service life of the die is prolonged. Therefore, the die for casting the ferroalloy is applied to the ferroalloy casting machine, so that the production efficiency can be improved, and the ferroalloy casting machine can be ensured to continuously and normally operate for a long time.
The copper material used for making the die body can be pure copper or copper alloy, such as pure copper material with the trade marks of TU1, TU2, T2, TP2 and TP1, or chromium-zirconium-copper and chromium-copper alloy material. The die body can be manufactured by machining a forged copper plate, a rolled copper plate or a cast copper plate.
Preferably, the upper surface of the mold body is provided with a plurality of casting grooves. The plurality of casting grooves are generally evenly distributed on the upper surface of the mold body.
Preferably, the cross-sectional area of the casting groove gradually increases from bottom to top. For example, the cavity of the casting groove is in a truncated cone shape, a truncated pyramid shape, a cone shape or a pyramid shape with a small lower part and a large upper part. The casting forming groove with the structure is beneficial to the casting product to smoothly separate from the die body. After the high-temperature ferroalloy liquid is slowly solidified in the casting forming groove, the ferroalloy casting mold is turned over, the opening of the casting forming groove is large, the bottom of the casting forming groove is small, the large end of a casting product is arranged at the lower part, the small end of the casting product is arranged at the upper part, and the ferroalloy product is conveniently separated from the mold body after solidification.
The volume of the casting molding groove is designed according to the size of the ferroalloy block required to be obtained, so that further crushing is not required after demolding, and the reduction of waste materials such as dust and the like generated in the production process is facilitated.
Preferably, the edge of the upper surface of the die body is provided with a containment convex edge. The casting grooves are usually positioned at the inner side of the enclosing convex edge. The convex edge of the enclosure is slightly higher than the opening at the top of the casting and forming groove, so that the overflow of iron alloy water from the edge of the mold can be prevented.
In the preferred scheme, the top of the rear side surface of the die body is provided with a shielding convex strip extending along the left-right direction, and the left edge and the right edge of the upper surface of the die body are respectively provided with a strip-shaped enclosure convex edge. When a plurality of dies are arranged in sequence (for example, the dies are arranged in sequence from front to back along a conveying chain), in two adjacent dies, the shielding convex strip of the front die is lapped on the front edge of the upper surface of the die body of the rear die to shield a gap between the two dies, so that ferroalloy liquid can be prevented from entering the gap; the strip-shaped enclosing convex edges on the left side and the right side can prevent the iron alloy water from overflowing from the left edge and the right edge of the die.
The cooling water channel can be arranged in the die body, and the surface solidification of the high-temperature ferroalloy liquid and the cooling of the die can be accelerated by introducing cooling water into the cooling water channel.
The die for casting the ferroalloy has high enough heat conducting performance and heat absorbing capacity, can quickly cool the high-temperature ferroalloy liquid to form a cast product, and can quickly reduce the temperature of the die through a conventional cooling mode (such as air cooling or air cooling combined with water cooling), thereby being beneficial to prolonging the service life of the die.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment 1 of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
fig. 4 is a schematic view of the lap fit of two adjacent molds.
Detailed Description
Example 1
As shown in fig. 1 to 3, the mold for casting iron alloy includes a mold body 1, wherein a plurality of casting grooves 2 are formed on an upper surface of the mold body 1, and the plurality of casting grooves 2 are uniformly distributed on the upper surface of the mold body 1; the die body 1 is made of copper (in the embodiment, a forged copper plate is adopted, and the die body 1 is manufactured by machining the shape, wherein the forged copper plate is made of pure copper and has the brand number of TU 1); the ratio of the volume of the solid part of the die body 1 to the total volume of all the casting molding grooves 2 is 7.6: 1.
in this embodiment, the top of the rear side of the mold body 1 is provided with a shielding convex strip 3 extending in the left-right direction, and the left edge and the right edge of the upper surface of the mold body 1 are respectively provided with a strip-shaped enclosure convex edge 4. Referring to fig. 4, when a plurality of molds are arranged in sequence (for example, arranged in sequence from front to back along a conveying chain), in two adjacent molds, the shielding convex strip 3 of the former mold overlaps the front edge of the upper surface of the mold body 1 of the latter mold, and shields the gap 5 between the two molds, so as to prevent the iron alloy liquid from entering the gap 5; the strip-shaped enclosing convex edges 4 on the left side and the right side can prevent the iron alloy water from overflowing from the left edge and the right edge of the die.
The cross-sectional area of the casting molding groove 2 is gradually increased from bottom to top. In this embodiment, the cavity of the casting molding groove 2 is in a circular truncated cone shape with a small bottom and a large top. The cavity of the casting molding groove 2 can also be in a frustum shape, a conical shape or a pyramid shape with a small lower part and a big upper part.
The left end and the right end of the die body 1 are respectively provided with a connecting piece 6, and the connecting pieces 6 are used for connecting the die with other structures (such as a conveying chain).
The working principle of the die for casting the ferroalloy is briefly described as follows:
when casting production is carried out, ferroalloy is poured onto the upper surface of the die body 1 and enters each casting forming groove 2, because of the rapid heat conduction capability of copper, a solidified shell can be rapidly formed on the surface of the ferroalloy liquid, meanwhile, heat is diffused to the whole die, and the phenomenon that the die is locally overheated to form pitting corrosion can be avoided. The specific heat of the copper is 390J/kg.k, the copper has certain heat absorption capacity, and after the die is contacted with the poured iron alloy liquid, the die absorbs the heat released by the iron alloy liquid in the solidification process, and the temperature of the die is increased. After the ferroalloy is demoulded, the mode of combining air cooling and water cooling (air cooling can be independently adopted), so that the heat in the die can be quickly taken away, and the die can quickly enter the next cycle.
The mold for casting an iron alloy is suitable for casting and molding various iron alloys, for example: 1. the silicon casting mold can be used for casting and molding industrial silicon; 2. the casting mold can be used for casting and molding the ferrosilicon; 3. the mold can be used for casting and molding ferromanganese; 4. the casting mold can be used for casting and molding ferrochrome; 5. the mold can be used for casting and molding ferrovanadium as a ferrovanadium casting mold; 6. the mould can be used for casting and molding ferronickel as a ferronickel casting mould; 6. the mold for casting the aluminum iron can be used for casting and molding the aluminum iron.
Taking ferromanganese casting as an example: the casting temperature of the ferromanganese is 1300 ℃, the initial temperature of the die is 90 ℃, the ratio of the volume of the solid part of the die body 1 to the total volume of all the casting forming grooves 2 is 7.6, and the temperature of the die after the ferromanganese is solidified is about 230 ℃.
Example 2
The present embodiment is different from embodiment 1 in that: the ratio of the volume of the solid portion of the die body to the total volume of all the molded grooves was 2.6: 1 (in this embodiment, a rolled copper plate is used, and the die body 1 is manufactured by machining the shape, and the forged copper plate is made of a chromium-zirconium-copper alloy material). The mould can be used for casting industrial silicon. The rest of the structure of this embodiment is the same as embodiment 1.
When the industrial silicon is cast, the casting temperature of the industrial silicon is 1600 ℃, the initial temperature of the die is 60 ℃, the ratio of the volume of the solid part of the die body to the total volume of all the casting forming grooves is 2.6, and the temperature of the die after the industrial silicon is solidified is about 400 ℃.
In addition, the ratio of the volume of the solid part of the die body of the die for casting the ferroalloy to the total volume of all the casting molding grooves can be larger than that of the embodiments 1 and 2, and in general, the larger the ratio is, the smaller the temperature rise of the die after the ferroalloy water is solidified is, but the higher the material cost is.
Claims (10)
1. The utility model provides a mould is used in ferroalloy casting, includes the mould body, is equipped with at least one casting shaping groove on the upper surface of mould body, its characterized in that: the die body is made of a copper material or a copper alloy material; the ratio of the volume of the solid portion of the mold body to the total volume of all the molded-in-shape grooves is (1.3-28): 1.
2. the mold for casting a ferrous alloy as set forth in claim 1, wherein: the die for casting the ferroalloy is a die for casting industrial silicon, and the ratio of the volume of the solid part of the die body of the die for casting the industrial silicon to the total volume of all casting forming grooves is (1.3-7.8): 1.
3. the mold for casting of iron alloy according to claim 1, wherein: the die for ferroalloy casting is a die for ferrosilicon casting, and the ratio of the volume of the solid part of the die body of the die for ferrosilicon casting to the total volume of all casting molding grooves is (3.5-20.8): 1.
4. the mold for casting a ferrous alloy as set forth in claim 1, wherein: the die for casting the ferroalloy is a die for casting ferromanganese, and the ratio of the volume of the solid part of the die body of the die for casting the ferromanganese to the total volume of all casting forming grooves is (1.9-11.4): 1.
5. the mold for casting a ferrous alloy as set forth in claim 1, wherein: the mould for casting the ferroalloy is a mould for casting ferrochrome, and the ratio of the volume of the solid part of the mould body of the mould for casting the ferrochrome to the total volume of all casting forming grooves is (4.1-24.9): 1.
6. the mold for casting a ferrous alloy as set forth in claim 1, wherein: the iron alloy casting mould is a ferrovanadium casting mould, and the ratio of the volume of the solid part of the mould body of the ferrovanadium casting mould to the total volume of all casting forming grooves is (3.9-23.2): 1.
7. the mold for casting a ferrous alloy as set forth in claim 1, wherein: the die for ferroalloy casting is a die for ferronickel casting, and the ratio of the volume of the solid part of the die body of the die for ferronickel casting to the total volume of all casting forming grooves is (4.7-28): 1.
8. the mold for casting a ferrous alloy as set forth in claim 1, wherein: the iron alloy casting mould is an aluminum iron casting mould, and the ratio of the volume of the solid part of the mould body of the aluminum iron casting mould to the total volume of all casting forming grooves is (3.2-19.4): 1.
9. the mold for casting of iron alloy according to any of claims 1 to 8, wherein: the top of the rear side face of the die body is provided with a shielding convex strip extending along the left-right direction, and the left edge and the right edge of the upper surface of the die body are respectively provided with a strip-shaped enclosure convex edge.
10. The mold for iron alloy casting according to any one of claims 1 to 8, wherein: a plurality of casting molding grooves are formed in the upper surface of the mold body; the cross section area of the casting molding groove is gradually increased from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123174954.9U CN216680098U (en) | 2021-12-17 | 2021-12-17 | Die for casting iron alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123174954.9U CN216680098U (en) | 2021-12-17 | 2021-12-17 | Die for casting iron alloy |
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| CN216680098U true CN216680098U (en) | 2022-06-07 |
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| CN202123174954.9U Active CN216680098U (en) | 2021-12-17 | 2021-12-17 | Die for casting iron alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115673330A (en) * | 2022-11-21 | 2023-02-03 | 苏州朗信智能科技有限公司 | Automatic ferroalloy casting equipment |
| CN115815573A (en) * | 2022-11-21 | 2023-03-21 | 苏州朗信智能科技有限公司 | Iron alloy casting forming method |
-
2021
- 2021-12-17 CN CN202123174954.9U patent/CN216680098U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115673330A (en) * | 2022-11-21 | 2023-02-03 | 苏州朗信智能科技有限公司 | Automatic ferroalloy casting equipment |
| CN115815573A (en) * | 2022-11-21 | 2023-03-21 | 苏州朗信智能科技有限公司 | Iron alloy casting forming method |
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