CN116944431A - Stacked forming die for casting and spheroidizing cover sheet - Google Patents
Stacked forming die for casting and spheroidizing cover sheet Download PDFInfo
- Publication number
- CN116944431A CN116944431A CN202310998711.1A CN202310998711A CN116944431A CN 116944431 A CN116944431 A CN 116944431A CN 202310998711 A CN202310998711 A CN 202310998711A CN 116944431 A CN116944431 A CN 116944431A
- Authority
- CN
- China
- Prior art keywords
- casting
- sprue
- cavity sand
- thin plate
- die cavity
- 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.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims abstract description 39
- 238000000465 moulding Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 18
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 229910052742 iron Inorganic materials 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 239000011347 resin Substances 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 abstract description 5
- 239000004576 sand Substances 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 239000002994 raw material Substances 0.000 description 6
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Provides a stacked forming die for casting a cover sheet for spheroidization, and belongs to the technical field of casting. Including the casting mould, the inside a plurality of sheet metal die cavity sand cores that are provided with of casting mould, every two sheet metal die cavity sand cores are a set of and each other tiling symmetry set up into one deck structure, and every two sheet metal die cavity sand cores of group symmetry center is equipped with the sprue and the cross gate of common use, and the sprue is connected with the cross gate, and the cross gate both sides are respectively through the inside die cavity intercommunication of sheet metal die cavity sand core of ingate and both sides, and multiunit sheet metal die cavity sand core piles up the concatenation and becomes multilayer sheet metal die cavity sand core group structure, and the sprue between multiunit sheet metal die cavity sand core that piles up together communicates each other. According to the invention, the mold is adopted to form the prefabricated sheet resin sand cavity, the sheet is formed after casting the molten iron, and the spheroidizing agent is covered for use in spheroidizing treatment, so that batch manufacturing is convenient, the steel plate usage amount can be greatly reduced, the labor intensity is reduced, the production cost is reduced, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of casting production, and particularly relates to a stacked forming die for casting a cover sheet for spheroidization.
Background
In the production of spheroidal graphite cast iron, a pouring method is widely adopted for spheroidizing, a dam with the height/diameter of the spheroidizing ladle being more than 1.5 is adopted, and as shown in fig. 5, a spheroidizer 8 containing magnesium alloy is placed on one side of a dam with a spheroidizing ladle bottom and is covered by spheroidal graphite cast iron scraps and inoculant particles 9, so that the contact between the spheroidizer alloy and an initial molten iron is effectively delayed. By applying the covering technology, the starting time of magnesium alloy and metal can be delayed for a few seconds, a reasonable iron hydraulic head is established above the spheroidized alloy, and the absorption rate of magnesium is obviously improved. In practice, the coating is performed by a method such as pig iron or cutting steel plate. Because the actual production mostly adopts the cut steel plate 10 as the covering prefabricated thin plate, special personnel are required to cut, the steel plate is purchased with large dosage, the economy is not high, and the safety accident easily occurs in the steel plate cutting process. There is therefore a need for improvements.
Disclosure of Invention
The invention solves the technical problems that: the invention provides a stacked forming die for casting a cover sheet for spheroidizing, which aims to overcome the defects of the prior production method, and adopts the die to form a resin sand cavity of a prefabricated sheet, and forms the sheet after casting molten iron, and covers a spheroidizer for use in spheroidizing; the forming method can be used for conveniently carrying out batch manufacturing, greatly reducing the use amount of the steel plate, reducing the labor intensity, reducing the production cost and improving the production efficiency.
In order to achieve the above purpose, the invention adopts the technical scheme that:
the stacked forming die for casting the spheroidizing cover sheet comprises a casting die, wherein a plurality of sheet cavity sand cores are arranged in the casting die, each two sheet cavity sand cores are in a group and are mutually tiled and symmetrically arranged into a layer structure, a common sprue and a sprue are arranged at the center of each group of two symmetrical sheet cavity sand cores, the sprue is connected with the sprue, and two sides of the sprue are respectively communicated with cavities in the sheet cavity sand cores at two sides through inner runners; multiple groups of thin plate cavity sand cores are stacked and spliced in the casting mould to form a multi-layer thin plate cavity sand core group structure, and sprue among the stacked groups of thin plate cavity sand cores is communicated with each other; wherein, the sprue of two symmetrical sheet die cavity sand cores of every group is in the middle and the sprue both sides symmetry are equipped with the cross gate.
The shape of the die cavity in the sand core of the sheet die cavity is a semicircular sheet die cavity structure manufactured according to the shape of the cover sheet for spheroidizing.
Further, each thin plate cavity sand core is provided with a half sprue and a half runner, and after the two symmetrical thin plate cavity sand cores in each group are combined, the half sprue and the half runner are spliced into a complete sprue and runner.
Further, the side edges of the cross runners are communicated with the die cavities of the thin plate die cavity sand cores through a plurality of evenly distributed ingates.
Further, a sprue basin is connected to the outermost sprue port.
Compared with the prior art, the invention has the advantages that:
1. in the scheme, a corresponding mould is manufactured for the sheet for spheroidizing by a punching method, a prefabricated sheet resin sand cavity is formed by adopting the mould, the sheet is formed after casting molten iron, and a spheroidizer is covered for use in spheroidizing, so that the scrap and the casting system and the like of castings can be used as raw materials for melting the molten iron, the use amount of the steel plate can be greatly reduced, raw materials such as pig iron and the like are greatly saved, and the production cost is reduced;
2. in the scheme, a plurality of symmetrical thin plate cavity sand cores which are stacked and spliced are arranged in the casting mould, so that batch manufacturing is convenient, the labor intensity is reduced, the production cost is reduced, and the production efficiency is improved;
3. in the scheme, the existing general covered steel plate size of a foundry can be combined, and the production can be realized only by using a simple sheet die, so that the die manufacturing cost can be saved;
4. the scheme is suitable for the production of the size of the covered iron plate by spheroidizing the ladle from 3 tons to 30 tons, can be produced according to the use quantity organization, can pour the covered thin plates with different sizes with a furnace, can greatly reduce the consumption of the steel plate, has good economy and is beneficial to saving the labor.
Drawings
FIG. 1 is a schematic diagram of a symmetrical arrangement of two sheet cavity sand cores in the present invention;
FIG. 2 is a schematic diagram of a stacked state of a plurality of thin plate cavity sand cores and a casting system in the invention;
FIG. 3 is a front view of the structure of a single sheet cavity sand core of the present invention;
FIG. 4 is a left side view of the structure of a single sheet cavity sand core of the present invention;
fig. 5 is a schematic diagram of a prior art impact spheroidization process.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Referring to fig. 1-4, embodiments of the present invention are described in detail.
Examples: referring to fig. 1 to 4, a stacked forming die for casting a cover sheet for spheroidization comprises a casting mold 1, wherein a plurality of sheet cavity sand cores 2 are arranged in the casting mold 1, and resin sand is filled in the casting die during manufacturing, and the cavity sand cores are formed after hardening. The two thin plate cavity sand cores 2 are in a group and are mutually tiled and symmetrically arranged to form a layer structure, a common sprue 4 and a sprue 5 are arranged in the center of each group of the two thin plate cavity sand cores 2, the sprue 4 is connected with the sprue 5, and two sides of the sprue 5 are respectively communicated with the cavities 3 in the thin plate cavity sand cores 2 at two sides through inner runners 6; and a plurality of groups of thin plate cavity sand cores 2 are stacked and spliced in the casting mould 1 to form a multi-layer thin plate cavity sand core group structure, and sprue 4 among the stacked groups of thin plate cavity sand cores 2 are communicated with each other. And the port of the sprue 4 at the outermost side is connected with a sprue basin 7.
Wherein the shape of the die cavity 3 in the sheet die cavity sand core 2 is a semicircular sheet die cavity structure which is manufactured according to the shape of the cover sheet for spheroidizing.
In one embodiment, referring to fig. 3, each thin plate cavity sand core 2 is provided with a half sprue and a half runner, and after two symmetrical thin plate cavity sand cores 2 in each group are combined, the half sprue and the half runner are spliced into a complete sprue 4 and runner 5. The structure is convenient for manufacturing the sand core.
In one embodiment, referring to fig. 1, the sprue 4 of each group of two symmetrical thin plate cavity sand cores 2 is located in the middle, and two sides of the sprue 4 are symmetrically provided with the cross runners 5. The side edges of the transverse pouring channels 5 are communicated with the die cavity 3 of the sheet die cavity sand core 2 through a plurality of uniformly distributed pouring channels 6.
The invention prepares a corresponding mould for the sheet for spheroidizing by a punching method, adopts the mould to form a resin sand cavity of the prefabricated sheet, forms the sheet after casting molten iron, and covers a spheroidizer for use in spheroidizing; therefore, the scrap and the pouring system of castings and the like can be used as raw materials to melt the molten iron, the use amount of steel plates can be greatly reduced, raw materials such as pig iron and the like are greatly saved, and the production cost is reduced; and set up a plurality of symmetry and pile up the sheet metal die cavity psammitolite of concatenation in the mould frame, conveniently carry out batch manufacturing, reduce intensity of labour, reduction in production cost improves production efficiency.
According to the invention, a stacked splicing molding is adopted, sand cores are combined into a plurality of cavities for casting, the quantity of the cavities is controlled according to the on-site requirement, as shown in FIG. 2, a casting system of a front-stage casting and leftover materials are adopted as melting materials, raw materials such as pig iron are not needed, and the material cost is saved. And finally, the pouring system performs pouring in a vertical pouring mode to form sequential solidification from bottom to top, and the compactness of the product tissue is ensured by utilizing the feeding of the pouring system.
Through field test, the prefabricated cast iron sheet is produced by using the forming die, 300 tons of steel plates are saved, 350 tons of steel plates are saved, more than 150 ten thousand yuan of funds are saved, the steel plate cutting cost is about 20 ten thousand yuan, and the raw material cost is greatly saved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The stacked forming die for casting the spheroidizing cover sheet is characterized in that: the casting mold comprises a casting mold (1), wherein a plurality of thin plate cavity sand cores (2) are arranged in the casting mold (1), each two thin plate cavity sand cores (2) are in a group and are mutually tiled and symmetrically arranged into a layer structure, a common sprue (4) and a sprue (5) are arranged at the center of each group of the two thin plate cavity sand cores (2) which are symmetrical, the sprue (4) is connected with the sprue (5), and two sides of the sprue (5) are respectively communicated with cavities (3) in the thin plate cavity sand cores (2) at two sides through inner runners (6); multiple groups of thin plate cavity sand cores (2) are stacked and spliced in the casting mould (1) to form a multi-layer thin plate cavity sand core group structure, and sprue (4) among the multiple groups of stacked thin plate cavity sand cores (2) are communicated with each other; wherein, the straight pouring gate (4) of each group of two symmetrical thin plate cavity sand cores (2) is positioned in the middle, and two sides of the straight pouring gate (4) are symmetrically provided with transverse pouring gates (5).
2. The stacked molding die for casting a spheroidizing cover sheet according to claim 1, wherein: the shape of the die cavity (3) in the sheet die cavity sand core (2) is a semicircular sheet die cavity structure which is manufactured according to the shape of the cover sheet for spheroidizing.
3. The stacked molding die for casting a spheroidizing cover sheet according to claim 1, wherein: each thin plate cavity sand core (2) is provided with a half straight runner and a half cross runner, and after the two thin plate cavity sand cores (2) which are symmetrical in each group are combined, the half straight runners and the half cross runners are spliced into a complete straight runner (4) and a complete cross runner (5).
4. The stacked molding die for casting a spheroidizing cover sheet according to claim 1, wherein: the side edges of the transverse pouring channels (5) are communicated with the die cavity (3) of the sheet die cavity sand core (2) through a plurality of inner pouring channels (6) which are uniformly distributed.
5. The stacked molding die for casting a spheroidizing cover sheet according to claim 1, wherein: and the port of the outmost sprue (4) is connected with a pouring basin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310998711.1A CN116944431A (en) | 2023-08-09 | 2023-08-09 | Stacked forming die for casting and spheroidizing cover sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310998711.1A CN116944431A (en) | 2023-08-09 | 2023-08-09 | Stacked forming die for casting and spheroidizing cover sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116944431A true CN116944431A (en) | 2023-10-27 |
Family
ID=88451182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310998711.1A Pending CN116944431A (en) | 2023-08-09 | 2023-08-09 | Stacked forming die for casting and spheroidizing cover sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116944431A (en) |
-
2023
- 2023-08-09 CN CN202310998711.1A patent/CN116944431A/en active Pending
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