CN212398036U - Large-scale air-cooled sand box for flat-bottom castings - Google Patents
Large-scale air-cooled sand box for flat-bottom castings Download PDFInfo
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- CN212398036U CN212398036U CN202021216827.3U CN202021216827U CN212398036U CN 212398036 U CN212398036 U CN 212398036U CN 202021216827 U CN202021216827 U CN 202021216827U CN 212398036 U CN212398036 U CN 212398036U
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- pipe
- box
- air
- side pipe
- air inlet
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- 238000005266 casting Methods 0.000 title claims abstract description 37
- 244000035744 Hura crepitans Species 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000004576 sand Substances 0.000 abstract description 12
- 239000011347 resin Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 7
- 239000002054 inoculum Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000007528 sand casting Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Abstract
The utility model discloses a large-scale flat bottom foundry goods gas cooling sand box, including box (4) and forced air cooling pipeline, be equipped with air inlet pipe (1) on box (4) left side wall, air inlet pipe (1) and box (4) inside air inlet side pipe (2) intercommunication, air inlet side pipe (2) exit is equipped with vertical level setting and manages (3), vertical side pipe (3) go up interval certain distance evenly distributed has horizontal side pipe (5) of horizontal setting, vertical side pipe (3) of the other end of box (4) converge the gas of horizontal side pipe (5) to the side pipe (6) of giving vent to anger of wearing out box (4) right side wall and discharge. The utility model discloses take away the heat around sand mould and the foundry goods as cooling medium with compressed air for the cooling rate of foundry goods itself has improved the cooling effect. Meanwhile, the cooling speed of the casting is accelerated, so that the generation of the special casting sand-sticking defect of the resin sand is prevented, and the surface quality of the casting is improved.
Description
Technical Field
The utility model relates to a casting sand box field especially relates to a casting sand box of cooling molten iron with higher speed.
Background
Sand casting is widely applied to molding and manufacturing of various iron castings, a sand box is technological equipment used in casting production, a mold is required to be molded and poured in the sand box in the casting production process, and after the casting is cooled and molded, the casting can be taken out after the pouring is finished. The ideal ingot structure is that the whole section of the ingot has uniform and fine equiaxed crystals, because the equiaxed crystals have small anisotropy, uniform deformation, excellent performance and good plasticity during processing, and are beneficial to casting and subsequent plastic processing. To obtain such a structure, it is often necessary to refine the melt. Therefore, an inoculant is often added in the process of sand mold pouring to carry out grain refining treatment. In the using process of the inoculant, the time is strictly required, but the sand box has poor heat conductivity and good heat preservation, the temperature of the sand box is slowly reduced after casting pouring is finished, the sand box can be opened and cleaned after a long time, the molten iron cooling time is too long, and the inoculant can lose effectiveness.
The large flat bottom casting is one of the most important blanks of heavy equipment, and the production capacity of the large flat bottom casting is one embodiment of the comprehensive strength of the national industry. The weight of large flat bottom castings can reach several tons, tens of tons and even hundreds of tons. The solidification and cooling of large flat bottom castings are very slow during the casting process, especially the sand casting process. In order to ensure the strength of the sand mold, the sand-eating amount of the large flat-bottom casting is large. The heat of the casting needs to be transferred to the surface of the sand box through the thick sand mold and then exchanges heat with the air. The surface temperature of the sand box begins to rise after a large flat-bottom casting is poured for several hours or even dozens of hours, and the surface temperature only rises by dozens of degrees. Because the heat conduction of the thick sand mold is slow and the surface temperature of the sand box is low, the heat dissipation of the large flat bottom casting is slow, the production period is long, and the production efficiency is low. Therefore, the sand box is often cooled in actual production, so that the cooling of the sand mould is accelerated, the production efficiency is improved, and the production period of castings is shortened.
Chinese utility model patent publication No. CN 107695308B's patent document named "sand box cooling device", including the box that has the inner cavity structure, the box includes the diapire, lateral wall and roof, be equipped with the venthole on the lateral wall, the roof is equipped with the sand box journal stirrup, place the sand box in the inner chamber of box, the sand box passes through the sand box journal stirrup and hangs on the box roof, the both ends of sand box all are equipped with annular cooling hole, be equipped with the vertical pivot of arranging in the inner chamber of box, the external motor of one end of pivot, the other end of pivot is equipped with propeller blade, propeller blade is located the below of sand box, be equipped with the horizontal pole support in the pivot that is located propeller blade below, the left side of horizontal pole support, right side both ends all are equipped with the plastic box that has the dry ice in, and circular arc recess has been seted. For large flat bottom castings, this solution is difficult to achieve with ideal results.
Disclosure of Invention
The utility model provides a large flat-bottom casting air cooling sand box capable of accelerating the cooling of molten iron.
For the molten iron that makes the pouring advance the sand box cools off as early as possible, the utility model adopts the following technical scheme: a large flat-bottom casting air cooling sand box comprises a box body 4 with an inner cavity structure and an air cooling pipeline positioned at the inner bottom of the box body 4, wherein the air cooling pipeline comprises an air inlet circular pipe 1, an air inlet square pipe 2, a longitudinal square pipe 3 and a transverse square pipe 5, the air inlet circular pipe 1 is arranged on the left side wall of the box body 4, the air inlet circular pipe 1 is communicated with the air inlet square pipe 2 inside the box body 4 so as to increase an air inlet path, the longitudinal square pipe 3 which is longitudinally and horizontally arranged is arranged at the outlet of the air inlet square pipe 2, the distance between the longitudinal square pipe 3 and the side wall of the box body 4, of the air inlet circular pipe 1, is 8-10 cm, the air inlet square pipe 2 is just positioned in the distance, the transverse square pipe 5 which is transversely arranged is uniformly distributed on the longitudinal square pipe 3 at a certain distance, the distance between the transverse square pipe 5 on two side faces and the front and rear, and the gas of the transverse square pipe 5 is converged to the square gas outlet pipe 6 penetrating out of the right side wall of the box body 4 to be discharged.
In order to adapt to the casting requirements of different bottom surface widths, the longitudinal square pipes 3 are 2 or more than 2, and correspondingly, the air inlet circular pipes 1 and the air inlet square pipes 2 are arranged, when the width of the bottom surface of the casting is increased, the longitudinal square pipes 3 of 2 or more than 2 are communicated with each other through connecting pipes, and the transverse square pipes 5 distributed on the longitudinal square pipes 3 are correspondingly increased.
The working principle is as follows: the air-cooled pipeline and the pouring area are separated by resin sand for molding, when cooling is needed, the fan is turned on, the rotating speed of the fan can be adjusted according to the cooling speed, high-pressure air enters from the air inlet circular tube 1, enters the air inlet square tube 2 through the box body 4, is shunted to the transverse square tube 5 through the longitudinal square tube 3, and finally, the air is blown out from the air outlet square tube 6. Because the gas continuously and quickly flows through the bottom of the sand box, the aim of quickly cooling the molten iron in the sand box is fulfilled.
Has the advantages that: the utility model discloses take away the heat around sand mould and the foundry goods as cooling medium with compressed air for the cooling rate of foundry goods itself has improved the cooling effect. Meanwhile, the cooling speed of the casting is accelerated, the generation of the special casting sand-sticking defect of the resin sand is prevented, the surface quality of the casting is improved, the labor intensity of sand cleaning is reduced, and the effect of the inoculant is ensured. When the castings with the large bottom surface areas need different cooling speeds to ensure the uniformity of the whole castings, the gas passing amount in the box body can be adjusted by increasing or decreasing the pressure of the gas inlet circular tube, so that the control of the cooling speed is realized.
Drawings
Fig. 1 is a schematic view of the three-dimensional structure of the present invention.
Fig. 2 is a schematic view of the top view structure of the present invention.
In the figure: air inlet circular tube 1, air inlet square tube 2, vertical square tube 3, box 4, horizontal square tube 5, the square tube 6 of giving vent to anger.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: a large flat-bottom casting air cooling sand box comprises a box body 4 with an inner cavity structure and an air cooling pipeline positioned at the inner bottom of the box body 4, wherein the air cooling pipeline comprises an air inlet circular pipe 1, an air inlet square pipe 2, a longitudinal square pipe 3 and a transverse square pipe 5, the air inlet circular pipe 1 is arranged on the left side wall of the box body 4, the air inlet circular pipe 1 is communicated with the air inlet square pipe 2 inside the box body 4 so as to increase an air inlet path, the longitudinal square pipe 3 which is longitudinally and horizontally arranged is arranged at the outlet of the air inlet square pipe 2, the longitudinal square pipe 3 and the box body 4 are provided with the side wall of the air inlet circular pipe 1 at a distance of 8cm, the air inlet square pipe 2 is just positioned in the interval, the transverse square pipe 5 which is transversely arranged is uniformly distributed on the longitudinal square pipe 3 at a certain interval, the distance between the transverse square pipe 5 on two side surfaces and, and the gas of the transverse square pipe 5 is converged to the square gas outlet pipe 6 penetrating out of the right side wall of the box body 4 to be discharged.
The working principle is as follows: the air-cooled pipeline and the pouring area are separated by resin sand for molding, when cooling is needed, the fan is turned on, the rotating speed of the fan can be adjusted according to the cooling speed, high-pressure air enters from the air inlet circular tube 1, enters the air inlet square tube 2 through the box body 4, is shunted to the transverse square tube 5 through the longitudinal square tube 3, and finally, the air is blown out from the air outlet square tube 6. Because the gas continuously and quickly flows through the bottom of the sand box, the aim of quickly cooling the molten iron in the sand box is fulfilled.
Example 2: a large flat-bottom casting air cooling sand box comprises a box body 4 with an inner cavity structure and an air cooling pipeline positioned at the inner bottom of the box body 4, wherein the air cooling pipeline comprises an air inlet circular pipe 1, an air inlet square pipe 2, a longitudinal square pipe 3 and a transverse square pipe 5, the air inlet circular pipe 1 is arranged on the left side wall of the box body 4, the air inlet circular pipe 1 is communicated with the air inlet square pipe 2 inside the box body 4 so as to increase an air inlet path, the longitudinal square pipe 3 which is longitudinally and horizontally arranged is arranged at the outlet of the air inlet square pipe 2, the longitudinal square pipe 3 and the box body 4 are provided with the side wall of the air inlet circular pipe 1 at a distance of 10cm, the air inlet square pipe 2 is just positioned in the interval, the transverse square pipe 5 which is transversely arranged is uniformly distributed on the longitudinal square pipe 3 at a certain interval, the distance between the transverse square pipe 5 on two side surfaces and, and the gas of the transverse square pipe 5 is converged to the square gas outlet pipe 6 penetrating out of the right side wall of the box body 4 to be discharged.
Vertical side's pipe 3 is 3 to corresponding setting is admitted air pipe 1 and is admitted air square pipe 2, and 3 vertical side's pipe 3 is two liang of intercommunications through the connecting pipe, and corresponding increase vertical side's pipe 3 goes up the horizontal side's pipe 5 that distributes.
Claims (2)
1. The utility model provides a large-scale flat bottom foundry goods air-cooled sand box which characterized in that: including box (4) that have interior cavity structure and the forced air cooling pipeline that is located box (4) bottom, the forced air cooling pipeline is including the pipe (1) that admits air, admit air side pipe (2), vertical side pipe (3) and horizontal side pipe (5), be equipped with on box (4) left side wall and admit air pipe (1), admit air pipe (1) and box (4) inside pipe (2) intercommunication of admitting air, it is equipped with vertical side pipe (3) that vertical level set up to admit air side pipe (2) exit, the lateral wall distance 8-10 cm that pipe (1) admits air is established with box (4) to vertical side pipe (3), admit air side pipe (2) just are located this interval, vertical side pipe (3) go up interval certain distance evenly distributed has horizontal side pipe (5) of horizontal setting, and the distance around horizontal side pipe (5) and box (4) of both sides face is 8-10 cm, the other end of box (4) is equipped with equally and is vertical side pipe (4) right side wall distance to be 8-10 cm (3) And the gas of the transverse square pipe (5) is converged to the square gas outlet pipe (6) penetrating out of the right side wall of the box body (4) to be discharged.
2. The large air-cooled flat bottom casting sand box according to claim 1, wherein: vertical side's pipe (3) are 2 or more than 2 to corresponding setting air intake pipe (1) and air intake side's pipe (2), two liang of intercommunications are passed through in 2 or more than 2 vertical side's pipe (3) through the connecting pipe, and corresponding increase horizontal side's pipe (5) that distribute on vertical side's pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021216827.3U CN212398036U (en) | 2020-06-29 | 2020-06-29 | Large-scale air-cooled sand box for flat-bottom castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021216827.3U CN212398036U (en) | 2020-06-29 | 2020-06-29 | Large-scale air-cooled sand box for flat-bottom castings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212398036U true CN212398036U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021216827.3U Expired - Fee Related CN212398036U (en) | 2020-06-29 | 2020-06-29 | Large-scale air-cooled sand box for flat-bottom castings |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012043A (en) * | 2021-12-28 | 2022-02-08 | 宝武特冶航研科技有限公司 | A tempering sand box and method for lost foam casting |
-
2020
- 2020-06-29 CN CN202021216827.3U patent/CN212398036U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012043A (en) * | 2021-12-28 | 2022-02-08 | 宝武特冶航研科技有限公司 | A tempering sand box and method for lost foam casting |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210126 Termination date: 20210629 |