CN220185952U - Lost foam casting valve body structure - Google Patents
Lost foam casting valve body structure Download PDFInfo
- Publication number
- CN220185952U CN220185952U CN202320376662.3U CN202320376662U CN220185952U CN 220185952 U CN220185952 U CN 220185952U CN 202320376662 U CN202320376662 U CN 202320376662U CN 220185952 U CN220185952 U CN 220185952U
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- Prior art keywords
- valve body
- lost foam
- riser
- flange
- flange part
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- 238000010114 lost-foam casting Methods 0.000 title claims abstract description 19
- 239000006260 foam Substances 0.000 claims abstract description 51
- 238000004891 communication Methods 0.000 claims description 3
- 230000008034 disappearance Effects 0.000 claims 4
- 230000007547 defect Effects 0.000 abstract description 17
- 238000003825 pressing Methods 0.000 abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005266 casting Methods 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 101150038956 cup-4 gene Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Valve Housings (AREA)
Abstract
The utility model belongs to the technical field of lost foam casting and relates to a lost foam casting valve body structure. Each side of the lost foam valve body (1) is provided with a flange part (7), the upper part of the lost foam valve body (1) is provided with a valve body branch pipe (8), the flange parts (7) are perpendicular to the lost foam valve body (1), one side of each flange part (7) is communicated with a cross runner (2) through an inner runner (9), the cross runners (2) are communicated with a vertical runner (3), the other side of each flange part (7) is provided with a large riser (5), and the upper part of each flange part (7) is provided with a small riser (6). The lost foam casting valve body structure can greatly reduce the internal defects of the lost foam valve body, after the product is molded, the flange surfaces of the two flanges are smooth and have no carbon defects, the shrinkage cavity shrinkage porosity phenomenon in the branch pipes is obviously reduced, the pressing water leakage rate of the valve body is obviously reduced, and the quality of the cast product is improved.
Description
Technical Field
The utility model belongs to the technical field of lost foam casting, and particularly relates to a lost foam casting valve body structure.
Background
The main defect reasons of the lost foam casting valve body are as follows: (1) when the flange surface of the valve body (the main pipe of the model) is connected, the valve body is horizontally placed, molten iron is filled from bottom to top, sand, paint blocks, glue which is not completely melted and decomposed, EPS and free slag in the molten iron are all collected on the large plane of the upper flange, so that the carbon defect of the flange surface after processing is obvious. (2) The valve body branch pipe and the main pipe have different wall thicknesses, including the lacing wire of the connection part, form a plurality of hot joints, and the riser of upper flange is because the distance is far away when keeping flat the molding, and feeding efficiency is low, and it is difficult to carry out effectual feeding and lead to inside shrinkage cavity shrinkage porosity, and the higher 40% of water leakage rate reaches when the valve body is too much water pressure, and gathers in branch pipe position.
In the prior art, the technology named as a valve body lost foam and a manufacturing method thereof and the publication number of 105215287B is available, the technology comprises a valve body, a pouring cup and an inner pouring gate, wherein the valve body comprises a sealing surface and a valve seat, the valve seat is divided into a left valve seat and a right valve seat, one side of the valve seat is provided with a bolt table, the left valve seat is connected with the right valve seat through the sealing surface, the inner pouring gate is divided into a straight pouring gate, a horizontal pouring gate, a vertical pouring gate and an inner pouring gate, the vertical pouring gate is divided into a first vertical pouring gate and a second vertical pouring gate which are arranged in parallel, the horizontal pouring gate is divided into a first horizontal pouring gate, a second horizontal pouring gate and a third horizontal pouring gate which are arranged in parallel between the first vertical pouring gate and the second vertical pouring gate, the junction of the horizontal pouring gate and the vertical pouring gate is provided with the inner pouring gate, the pouring cup is connected with the second horizontal pouring gate, the upper part of the inner pouring gate is provided with the sealing surface, and the valve body is parallel to the horizontal pouring gate
However, this technique does not relate to the technical problem and technical solution of the present utility model.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: aiming at the defects of the prior art, the lost foam casting valve body structure has the advantages that the structure is simple, the internal defects of the lost foam valve body can be greatly reduced, after the product is formed, the flange surfaces of the two flanges are smooth and free of carbon defects, the shrinkage cavity shrinkage porosity phenomenon in the branch pipes is obviously reduced, the pressing water leakage rate of the valve body is obviously reduced, and the quality of a casting product is improved.
The technical scheme adopted by the utility model is as follows:
the utility model relates to a lost foam casting valve body structure which comprises a lost foam valve body, wherein flange parts are respectively arranged on each side of the lost foam valve body, a valve body branch pipe is arranged at the upper part of the lost foam valve body, the flange parts are perpendicular to the lost foam valve body, one side of each flange part is respectively communicated with a cross runner through an inner runner, the cross runner is communicated with a vertical runner, a large riser is respectively arranged on the other side of each flange part, and a small riser is respectively arranged on the upper part of each flange part.
The lost foam valve body and the flange parts are of annular structures, and each flange part is of a communication structure with one side of the lost foam valve body.
The upper end of the vertical pouring gate is provided with a horn-shaped pouring cup.
The flange part comprises a first flange part and a second flange part.
The large riser comprises a first large riser and a second large riser, and the small riser comprises a first small riser and a second small riser.
The horizontal center line of the inner gate coincides with the horizontal plane of the lost foam valve body, the horizontal center line of the large riser coincides with the horizontal plane of the lost foam valve body, and the vertical center line of the small riser coincides with the vertical plane of the lost foam valve body.
The vertical runner is parallel to the vertical plane of the lost foam valve body.
The flange part is vertical to the horizontal plane of the lost foam valve body.
The inner pouring gate comprises a first inner pouring gate and a second inner pouring gate, wherein the first inner pouring gate is communicated with the first flange part, and the second inner pouring gate is communicated with the second flange part.
The side of the valve body branch pipe is provided with a plurality of small riser heads.
By adopting the technical scheme of the utility model, the working principle and the beneficial effects are as follows:
according to the lost foam casting valve body structure, the modeling of the lost foam casting valve body structure is changed, so that when the valve body structure is horizontally placed, the flange part is vertically placed, and the valve body branch pipe is vertical to the horizontal plane. When the casting product is cast and molded, the pouring gate is set to be a middle pouring mode, pouring is carried out from the middle position of the side face of the valve body, a large riser is arranged on the side face opposite to the inner pouring gate, and a small riser is arranged at the highest point of the flange part. Therefore, when the valve body structure is used for casting a product, the internal defects of the lost foam valve body can be greatly reduced, after the product is molded, the flange surfaces of the two flanges are smooth and have no carbon defects, the shrinkage cavity shrinkage porosity phenomenon in the branch pipes is obviously reduced, the pressing water leakage rate of the valve body is reduced to 10% from 40% in the prior art, the pressing qualification rate reaches 90%, the mass production condition is realized, and the quality of the cast product is comprehensively improved.
Drawings
The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:
FIG. 1 is a schematic diagram of a front view of a lost foam cast valve body structure according to the present utility model;
FIG. 2 is a schematic top view of the lost foam casting valve body according to the present utility model;
the reference numerals in the figures are respectively: 1. a lost foam valve body; 2. a cross gate; 3. a vertical pouring channel; 4. a pouring cup; 5. large riser; 6. a small riser; 7. a flange portion; 8. a valve body branch pipe; 9. an inner runner; 10. a horizontal plane; 11. and (5) a vertical plane.
Detailed Description
The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present utility model by describing examples in further detail:
as shown in fig. 1 and 2, the utility model relates to a lost foam casting valve body structure, which comprises a lost foam valve body 1, wherein each side of the lost foam valve body 1 is respectively provided with a flange part 7, the upper part of the lost foam valve body 1 is provided with a valve body branch pipe 8, the flange parts 7 are perpendicular to the lost foam valve body 1, one side of each flange part 7 is respectively communicated with a horizontal runner 2 through an inner runner 9, the horizontal runner 2 is communicated with a vertical runner 3, the other side of each flange part 7 is respectively provided with a large riser 5, and the upper part of each flange part 7 is respectively provided with a small riser 6. The structure provides an improved technical scheme aiming at the defects in the prior art. The modeling of the lost foam casting valve body structure is changed, so that when the valve body structure is horizontally placed, the flange part is vertically placed, and the valve body branch pipe 8 is vertical to the horizontal plane. When the casting product is cast and molded, the pouring gate is set to be a middle pouring mode, pouring is carried out from the middle position of the side face of the valve body, a large riser is arranged on the side face opposite to the inner pouring gate, and a small riser is arranged at the highest point of the flange part. Therefore, when the valve body structure is used for casting a product, the internal defects of the lost foam valve body can be greatly reduced, after the product is molded, the flange surfaces of the two flanges are smooth and have no carbon defects, the shrinkage cavity shrinkage porosity phenomenon in the branch pipes is obviously reduced, the pressing water leakage rate of the valve body is reduced to 10% from 40%, the pressing qualification rate reaches 90%, and the valve body structure has a batch production condition. Therefore, the quality of the cast product is comprehensively improved. The lost foam casting valve body structure disclosed by the utility model is simple in structure, the internal defects of the lost foam valve body can be greatly reduced, after a product is formed, the flange surfaces of the two flanges are smooth and free of carbon defects, the shrinkage cavity shrinkage porosity phenomenon in the branch pipe is obviously reduced, the pressing water leakage rate of the valve body is obviously reduced, and the quality of a cast product is improved.
The lost foam valve body 1 and the flange parts 7 are of annular structures, and each flange part 7 and one side of the lost foam valve body 1 are of a communication structure. In the above structure, the lost foam valve body 1 and the two flange portions 7 form a basic structure of the valve body structure. In this way, after casting, a cast product is formed comprising the tubular body and the two flange faces, eliminating the drawbacks of the prior art.
The upper end of the sprue 3 is provided with a horn-shaped pouring cup 4. The pouring cup 4 with the structure is convenient for pouring liquid metal such as molten iron and the like reliably.
The flange portion 7 includes a first flange portion 71 and a second flange portion 72. The large riser 5 comprises a first large riser 51 and a second large riser 52, and the small riser 6 comprises a first small riser 61 and a second small riser 62. With the structure, two flange parts are arranged, a large riser is correspondingly arranged on the side face of each flange part, and a small riser is correspondingly arranged on the upper part of each flange part. The riser is used for supplying metal when the casting is formed, and has the effects of preventing shrinkage cavity, shrinkage porosity, exhaust and slag collection. Therefore, based on the characteristic of vertical arrangement of the flange part and the arrangement and position arrangement of the riser, the flange surface of the casting product is smooth and free of carbon defects after the casting product is processed and molded, and the shrinkage porosity phenomenon of the shrinkage cavity in the branch pipe of the casting product is obviously reduced.
The horizontal center line of the inner runner 9 coincides with the horizontal plane 10 of the lost foam valve body 1, the horizontal center line of the large riser 5 coincides with the horizontal plane 10 of the lost foam valve body 1, and the vertical center line of the small riser 6 coincides with the vertical plane 11 of the lost foam valve body 1. The sprue 3 is parallel to the vertical surface 11 of the lost foam valve body 1. The flange part 7 is perpendicular to the horizontal plane 10 of the lost foam valve body 1. The above structure defines the relative positions of the valve body and the large riser, the small riser, the sprue 3 and other parts.
The inner runner 9 includes a first inner runner 91 and a second inner runner 92, the first inner runner 91 communicates with the first flange portion 71, and the second inner runner 92 communicates with the second flange portion 72. According to the structure, when liquid metal such as molten iron is poured, the liquid metal respectively enters the valve body and the two flange parts, so that an integrated casting product is formed, and the product quality is guaranteed.
The side of the valve body branch pipe 8 is provided with a plurality of small riser heads 6. With the structure, the valve body branch pipe part is also provided with the small riser, so that the quality of the branch pipe part of a cast product is improved.
According to the lost foam casting valve body structure, the modeling of the lost foam casting valve body structure is changed, so that when the valve body structure is horizontally placed, the flange part is vertically placed, and the valve body branch pipe is vertical to the horizontal plane. When the casting product is cast and molded, the pouring gate is set to be a middle pouring mode, pouring is carried out from the middle position of the side face of the valve body, a large riser is arranged on the side face opposite to the inner pouring gate, and a small riser is arranged at the highest point of the flange part. Therefore, when the valve body structure is used for casting a product, the internal defects of the lost foam valve body can be greatly reduced, after the product is molded, the flange surfaces of the two flanges are smooth and have no carbon defects, the shrinkage cavity shrinkage porosity phenomenon in the branch pipes is obviously reduced, the pressing water leakage rate of the valve body is reduced to 10% from 40% in the prior art, the pressing qualification rate reaches 90%, the mass production condition is realized, and the quality of the cast product is comprehensively improved.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the utility model is not limited by the foregoing, but rather is within the scope of the utility model as long as various modifications are made by the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without modification.
Claims (10)
1. The utility model provides a lost foam casting valve body structure which characterized in that: including disappearance mould valve body (1), disappearance mould valve body (1) every side sets up flange portion (7) respectively, and disappearance mould valve body (1) upper portion sets up valve body branch pipe (8), and flange portion (7) are perpendicular with disappearance mould valve body (1), and runner (2) are watered in runner (9) intercommunication respectively in every flange portion (7) one side, runner (2) intercommunication vertical runner (3), and every flange portion (7) opposite side sets up large-size riser (5) respectively, and every flange portion (7) upper portion sets up small-size riser (6) respectively.
2. The lost foam cast valve body structure of claim 1, wherein: the lost foam valve body (1) and the flange parts (7) are of annular structures, and each flange part (7) and one side of the lost foam valve body (1) are of a communication structure.
3. The lost foam cast valve body structure of claim 1 or 2, wherein: the upper end of the sprue (3) is provided with a horn-shaped pouring cup (4).
4. The lost foam cast valve body structure of claim 1 or 2, wherein: the flange part (7) comprises a first flange part (71) and a second flange part (72).
5. The lost foam cast valve body structure of claim 4, wherein: the large riser (5) comprises a first large riser (51) and a second large riser (52), and the small riser (6) comprises a first small riser (61) and a second small riser (62).
6. The lost foam cast valve body structure of claim 1 or 2, wherein: the horizontal center line of the inner runner (9) coincides with the horizontal plane (10) of the lost foam valve body (1), the horizontal center line of the large riser (5) coincides with the horizontal plane (10) of the lost foam valve body (1), and the vertical center line of the small riser (6) coincides with the vertical plane (11) of the lost foam valve body (1).
7. The lost foam cast valve body structure of claim 6, wherein: the vertical runner (3) is parallel to a vertical surface (11) of the lost foam valve body (1).
8. The lost foam cast valve body structure of claim 7, wherein: the flange part (7) is vertical to the horizontal plane (10) of the lost foam valve body (1).
9. The lost foam cast valve body structure of claim 4, wherein: the inner pouring gate (9) comprises a first inner pouring gate (91) and a second inner pouring gate (92), the first inner pouring gate (91) is communicated with the first flange part (71), and the second inner pouring gate (92) is communicated with the second flange part (72).
10. The lost foam cast valve body structure of claim 1 or 2, wherein: the side of the valve body branch pipe (8) is provided with a plurality of small riser heads (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320376662.3U CN220185952U (en) | 2023-03-03 | 2023-03-03 | Lost foam casting valve body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320376662.3U CN220185952U (en) | 2023-03-03 | 2023-03-03 | Lost foam casting valve body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220185952U true CN220185952U (en) | 2023-12-15 |
Family
ID=89099650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320376662.3U Active CN220185952U (en) | 2023-03-03 | 2023-03-03 | Lost foam casting valve body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220185952U (en) |
-
2023
- 2023-03-03 CN CN202320376662.3U patent/CN220185952U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |