CN210435330U - Aluminium liquid chute - Google Patents
Aluminium liquid chute Download PDFInfo
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- CN210435330U CN210435330U CN201920770241.2U CN201920770241U CN210435330U CN 210435330 U CN210435330 U CN 210435330U CN 201920770241 U CN201920770241 U CN 201920770241U CN 210435330 U CN210435330 U CN 210435330U
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Abstract
The utility model discloses an aluminum liquid chute, which comprises a first building piece and a second building piece which are spliced into a chute main body, and a chute fixing piece for fixing the chute main body; the splicing surface of the first building for splicing the second building is provided with a bulge, and the second building is provided with a groove matched with the bulge; and a splicing seam between the first building piece and the second building piece is positioned at the bottom of the inner wall of the chute main body, and a plugging component is arranged in the splicing seam between the first building piece and the second building piece. The utility model provides an aluminium liquid chute eliminates the stress concentration position when current prefabricated section chute part is heated the inflation in structural design, can effectively avoid appearing the problem of fracture, deformation, avoids chute bottom crackle to cause to inhale hydrogen and impurity contamination to the fuse-element quality, has important meaning to improving product quality.
Description
Technical Field
The utility model relates to a casting fusant container technical field, more specifically relates to an aluminium liquid chute.
Background
In the aluminum melt production industry, the chute is essential basic equipment for production and is used for transferring aluminum liquid among equipment and transferring and supplying the aluminum liquid among technological processes of degassing, filtering, casting and the like. The conventional chute is generally formed by pouring RSK-II type brown corundum castable in sections, the shape of the chute is wide at the top and narrow at the bottom, and the inner wall of the chute is in a regular semi-elliptical shape.
Compared with the traditional molten aluminum chute integrally cast and formed, the prefabricated section chute is a great progress in the chute development process. The prefabricated section chute which is commonly used at present is shown in figure 1, namely, the prefabricated section chute is spliced and installed after being cast in sections. The chute has the main relative advantages of convenience in maintenance, flexibility in replacement and low manufacturing cost, but the biggest problem in use is still a series of defects of cracking, deformation and the like caused by stress concentration, and the cracking and deformation are generally caused after the chute is used for 15-20 days, as shown in figures 2-3. The most serious crackle that produces of prefabricated section swift current tank bottom portion, crack line is extremely irregular and the crack degree of depth passes whole thickness, has the hourglass aluminium risk. When the repairing material is maintained and repaired, the repairing material cannot be completely matched with the inner wall of the chute crack, the repairing depth is about 10mm, and the repairing material can fall off again after being used for 3-5 times. The repair workload is large, and the risk of melt pollution exists in the fallen repair materials and the exposed cracks.
Therefore, it is necessary to develop an aluminum liquid chute capable of avoiding cracking and deformation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art easy fracture, the defect of deformation provide an aluminium liquid chute, the aluminium liquid chute that provides adopts novel mosaic structure, can effectively avoid appearing the problem of fracture, deformation, avoids chute bottom crackle to cause to inhale hydrogen and impurity contamination to the fuse-element quality, has important meaning to improving product quality.
In order to solve the technical problem, the utility model discloses a technical scheme is:
an aluminum liquid chute comprises a first building piece and a second building piece which are used for splicing into a chute main body, and a chute fixing piece used for fixing the chute main body;
the splicing surface of the first building for splicing the second building is provided with a bulge, and the second building is provided with a groove matched with the bulge; and a splicing seam between the first building piece and the second building piece is positioned at the bottom of the inner wall of the chute main body, and a plugging component is arranged in the splicing seam between the first building piece and the second building piece.
The inventor conducts statistical analysis on the precast block chute in the prior art in the actual use process to find that: the cracking part is mainly concentrated at the bottom of the chute, namely the center of the arc; secondly, the two ends of the chute are warped and uneven in the length direction due to expansion caused by heat and contraction caused by cold. When the aluminum melt flows in the chute, the melt pressure borne by the bottom of the chute and the scouring of the aluminum melt are undoubtedly the largest, and in addition, the slag knife scratches the bottom of the chute during manual operation, so that the bottom of the chute has the signs of surface falling, chute scraping and the like at first. More importantly, the design of the original precast block chute model determines that the bottom of the chute is the most obvious stress concentration point. The pouring material thickness of chute cross section changes greatly, and when the pouring material absorbed the fuse-element heat and taken place the inflation or when cooling the shrink, the cross section no matter in which direction takes place deformation and all can lead to chute bottom fracture, and severe fracture position crack width can reach 10 ~ 12mm, has very big hourglass aluminium risk, and easily causes the fuse-element hydrogen content to rise, influences product quality. Because the crack is irregular, the repair work is difficult to carry out, and the repair quality is difficult to guarantee. Most cracks fall off and crack again after being repaired for 3-5 times, the workload is increased by repeated repair, the production efficiency is influenced, and the stability of the product quality is not facilitated.
Different from current prefabricated section chute, the utility model discloses an aluminium liquid chute adopts the inseparable first piece of building of cooperation and second to build the piece and splice into the chute main part and fix through the chute mounting, and the concatenation seam is located chute inner wall bottom and adopts the shutoff part to carry out the shutoff. The aluminum liquid chute eliminates the stress concentration part when the existing prefabricated section chute is locally heated and expanded in structural design, thereby solving the problems of chute cracking and deformation, after the aluminum liquid chute is used for a certain time, the inner wall keeps good finish, cracks do not appear at the bottom, only the splicing seam is slightly increased, and simple repair and aluminum liquid percolation do not occur.
To sum up, the utility model discloses an aluminium liquid chute can effectively avoid appearing the problem of fracture, deformation, avoids chute bottom crackle to cause to inhale hydrogen and impurity contamination to the fuse-element quality, has important meaning to improving product quality.
Preferably, the splicing seam is less than or equal to 3 mm.
Preferably, the projection is semi-cylindrical, and the axis of the projection is parallel to the extending direction of the chute main body; the groove of the second building is in a semi-cylindrical shape matched with the protrusion.
Preferably, the groove is completely coincident with the projection.
Preferably, the splicing seam between the first building and the second building is a straight line. At the moment, the splicing seams are straight lines, the repairing materials are conveniently filled to serve as plugging components, the repairing materials are firmly combined with the first building piece and the second building piece, and the repairing workload is further reduced.
Preferably, the chute fixing part comprises a chute shell for accommodating the chute main body, at least two limiting blocks and a chute pressing plate, wherein the at least two limiting blocks and the chute pressing plate are positioned in the chute shell and used for clamping the first building and the second building. The chute pressing plate is used for pressing the upper end of the chute main body.
Preferably, the limiting blocks are positioned at the bottoms of two sides in the chute shell.
Preferably, a dry-type material-seepage-prevention heat-insulation layer is arranged between the chute main body and the chute shell. Fill and tamp with dry-type prevention of seepage material between chute main part and the chute shell, form dry-type prevention of seepage material heat preservation, prevent that first building from building the piece with the second and scatter to have heat retaining effect.
Preferably, the chute housing is made of steel.
Preferably, the cross section of the inner wall of the chute main body, which is perpendicular to the extension direction of the chute main body, is a semi-ellipse.
The plugging component is made of calcium silicate boards and/or asbestos wool.
The first building and the second building may be constructed by those skilled in the art with reference to the prior art. Specifically, the following method may be employed:
and in consideration of the requirements of the mold processing precision and the drying and drainage performance, the first building and the second building are cast by adopting a wood mold. The mould preparation requires accurate size, smooth surface, the curved surface is excessive natural, especially the protruding of first building and the recess position of second building need the size accurate, guarantees that the two can coincide completely, and the position that the mould surface and castables contact will carry out the coating and handle.
Mixing the casting material and industrial pure water according to a ratio of 8:1, fully stirring and filling into a mould. Tamping by using a vibration tool until slurry in the casting material overflows, removing redundant casting material by using a tool and flattening an upper opening; standing for 36 hours (properly prolonging the time in winter), demolding, and naturally drying the demolded building for one week; and after the natural drying is finished, placing the building pieces together in a preheating furnace, slowly heating the building pieces from room temperature to 150 ℃ at a speed of 15 ℃/h, preserving heat for 3-5 hours, continuously heating to 350 ℃ and preserving heat for 3-5 hours, finally heating to 550 ℃ and preserving heat for 3 hours, then slowly cooling to a temperature lower than 100 ℃, taking out of the furnace, and naturally cooling to room temperature.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an aluminium liquid chute adopts the inseparable first piece of building of cooperation and second to build the piece and splice into the chute main part and fix through the chute mounting, splices the seam and is located chute inner wall bottom and adopts the shutoff part to carry out the shutoff. This aluminium liquid chute eliminates the stress concentration position when current prefabricated section chute part is heated and expands in structural design, can effectively avoid appearing the problem of fracture, deformation, avoids chute bottom crackle to cause hydrogen absorption and impurity pollution to the fuse-element quality, has important meaning to improving product quality.
Drawings
FIG. 1 is a schematic end view of a prior art precast block chute.
Fig. 2 is a picture of a crack in a prior art preform block chute.
Fig. 3 is a picture of a crack in a prior art preform block chute.
Fig. 4 is a schematic diagram of a first building and a second building in the molten aluminum chute of embodiment 1 of the present invention.
Fig. 5 is a schematic diagram of a chute main body spliced by a first building and a second building in the aluminum liquid chute of embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of an aluminum liquid chute of embodiment 1 of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Furthermore, if the terms "first," "second," and the like are used for descriptive purposes only, they are used for mainly distinguishing different devices, elements or components (the specific types and configurations may be the same or different), and they are not used for indicating or implying relative importance or quantity among the devices, elements or components, but are not to be construed as indicating or implying relative importance.
Example 1
An aluminum liquid chute is shown in figures 4-6 and comprises a first building 11 and a second building 12 which are used for splicing a chute main body 1, and a chute fixing part 2 used for fixing the chute main body 1.
The splicing surface 111 of the first building 11 for splicing the second building 12 is provided with a protrusion 112, and the second building 12 is provided with a groove 113 matched with the protrusion 112. A splicing seam 13 between the first building 11 and the second building 12 is located at the bottom of the inner wall of the chute main body 1, and a plugging component is arranged in the splicing seam 13 between the first building 11 and the second building 12. The projection 112 has a semi-cylindrical shape, and the axis of the projection 112 is parallel to the extending direction of the chute body 1. Groove 113 of second building 12 is semi-cylindrical in shape to mate with protrusion 112. The splicing seam 13 at the bottom of the inner wall of the chute main body 1 is a straight line. The splicing seam 13 is less than or equal to 3 mm. The plugging component is made of calcium silicate board or asbestos wool. The section of the inner wall of the chute main body 1, which is vertical to the extending direction of the chute main body 1, is semi-elliptical.
The chute fixing piece 2 comprises a chute shell 21 for accommodating the chute main body 1, at least two limiting blocks 22 and a chute pressing plate 23, wherein the two limiting blocks 22 are positioned in the chute shell 21 and used for clamping the first building 11 and the second building 12. The limiting blocks 22 are positioned at the bottoms of two sides in the chute shell 21. The chute pressing plate 23 is used to press the upper end of the chute body 1. A dry type impermeable material heat preservation layer 24 is arranged between the chute main body 1 and the chute shell 21.
The first building 11 and the second building 12 of the molten aluminum chute of the embodiment can be prepared by adopting the following method:
and in consideration of the requirements of the mold processing precision and the drying and drainage performance, the first building and the second building are cast by adopting a wood mold. The mold is required to be accurate in size, smooth in surface and natural in curved surface transition, particularly, the positions of the bulge of the first building and the groove of the second building are accurate in size, the bulge and the groove can be completely matched, and a PVC pipe with the diameter of 35mm can be adopted to be matched with the mold after being cut open; the position of the surface of the mould, which is contacted with the casting material, is subjected to coating treatment.
Mixing the casting material and industrial pure water according to a ratio of 8:1, fully stirring and filling into a mould. Tamping by using a vibration tool until slurry in the casting material overflows, removing redundant casting material by using a tool and flattening an upper opening; standing for 36 hours (properly prolonging the time in winter), demolding, and naturally drying the demolded building for one week; and after the natural drying is finished, placing the building pieces together in a preheating furnace, slowly heating the building pieces from room temperature to 150 ℃ at a speed of 15 ℃/h, preserving heat for 3-5 hours, continuously heating to 350 ℃ and preserving heat for 3-5 hours, finally heating to 550 ℃ and preserving heat for 3 hours, then slowly cooling to a temperature lower than 100 ℃, taking out of the furnace, and naturally cooling to room temperature.
After the aluminum liquid chute of this embodiment is used for 90 days, the chute inner wall keeps better finish, and the bottom does not appear the crackle, except that splice joint part has increase 1 ~ 2mm, the chute upwarps does not appear, shows that the aluminium liquid seepage does not appear in the chute bottom. The enlarged splicing seam is a regular straight line, is easily filled with the repair material, is firmly combined with the chute, eliminates cracks at the bottom of the chute and reduces the repair workload. Avoiding the hydrogen absorption and impurity pollution of the melt quality caused by the cracks at the bottom of the chute, and having important significance for improving the product quality.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The molten aluminum chute is characterized by comprising a first building (11) and a second building (12) which are used for splicing into a chute main body (1), and a chute fixing part (2) used for fixing the chute main body (1);
a projection (112) is arranged on a splicing surface (111) of the first building (11) for splicing the second building (12), and a groove (113) matched with the projection (112) is arranged on the second building (12); the splicing seam (13) between the first building (11) and the second building (12) is located at the bottom of the inner wall of the chute main body (1), and a plugging component is arranged in the splicing seam (13) between the first building (11) and the second building (12).
2. The aluminium liquid chute as claimed in claim 1, characterized in that the projection (112) is semi-cylindrical, the axis of the projection (112) being parallel to the direction of extension of the chute body (1);
the groove (113) of the second building (12) is in a semi-cylindrical shape matched with the protrusion (112).
3. The aluminium liquid chute of claim 1, characterized in that the splice joint (13) at the bottom of the inner wall of the chute body (1) is a straight line.
4. The aluminium liquid chute of claim 1, characterized in that the chute fixing member (2) comprises a chute housing (21) for accommodating the chute main body (1), at least two limiting blocks (22) and a chute pressing plate (23) which are positioned in the chute housing (21) and used for clamping the first building (11) and the second building (12).
5. The aluminium liquid chute of claim 4, characterized in that a dry anti-seepage insulation layer (24) is arranged between the chute main body (1) and the chute outer casing (21).
6. The aluminium liquid chute of claim 1, characterized in that the cross section of the inner wall of the chute main body (1) perpendicular to the extension direction of the chute main body (1) is semi-elliptical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770241.2U CN210435330U (en) | 2019-05-24 | 2019-05-24 | Aluminium liquid chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770241.2U CN210435330U (en) | 2019-05-24 | 2019-05-24 | Aluminium liquid chute |
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| Publication Number | Publication Date |
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| CN210435330U true CN210435330U (en) | 2020-05-01 |
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| CN201920770241.2U Active CN210435330U (en) | 2019-05-24 | 2019-05-24 | Aluminium liquid chute |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142383A (en) * | 2019-05-24 | 2019-08-20 | 乳源瑶族自治县东阳光高纯新材料有限公司 | A kind of molten aluminum chute |
| CN114799077A (en) * | 2022-04-29 | 2022-07-29 | 哈焊所华通（常州）焊业股份有限公司 | Continuous casting mould |
-
2019
- 2019-05-24 CN CN201920770241.2U patent/CN210435330U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142383A (en) * | 2019-05-24 | 2019-08-20 | 乳源瑶族自治县东阳光高纯新材料有限公司 | A kind of molten aluminum chute |
| CN114799077A (en) * | 2022-04-29 | 2022-07-29 | 哈焊所华通（常州）焊业股份有限公司 | Continuous casting mould |
| CN114799077B (en) * | 2022-04-29 | 2024-07-19 | 哈焊所华通（常州）焊业股份有限公司 | Continuous casting die |
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