CN205147258U - Mould of magnesium alloy D. C. casting casting - Google Patents
Mould of magnesium alloy D. C. casting casting Download PDFInfo
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- CN205147258U CN205147258U CN201520957962.6U CN201520957962U CN205147258U CN 205147258 U CN205147258 U CN 205147258U CN 201520957962 U CN201520957962 U CN 201520957962U CN 205147258 U CN205147258 U CN 205147258U
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Abstract
The utility model relates to a mould of magnesium alloy D. C. Casting casting, it casts machine and crucible including what have a dummy ingot head, cast the machine and be connected with the crystallizer, and the dummy ingot headgear connects the inside at the crystallizer, the crucible upper end is equipped with the baffle, it leaks watering of material mouth to be equipped with the area on the external diameter of crucible open end, the upper end of crystallizer is equipped with and leaks the material mouthful heat preservation draft tube that communicates, the bottom of heat preservation draft tube is equipped with outer chamfer opening, and the spacing joint in terraced angle that is equipped with on outer chamfer opening and the crystallizer internal diameter, be equipped with the graphite annulus on the internal diameter at ladder angle, be equipped with the inlet tube on the external diameter of crystallizer, be equipped with the outlet pipe on the internal diameter at ladder angle. Because the baffle is higher than the open end of crucible, the space entering that the interior magnesium liquid of crucible can follow between the baffle is watered to in hourglass material mouthful entering heat preservation draft tube, the heat preservation draft tube can keep magnesium liquid's temperature effectively, can form a hot tap, need not artifical secondary regulation liquid level temperature, has reduced the process, and the operation is convenient, the outlet pipe can cool off the ingot casting, tie post -crystalline ingot casting pore -free, loose phenomenon, the ingot casting high quality.
Description
technical fieldthe utility model belongs to mould for casting magnesium alloy technical field, be specifically related to a kind of be applicable to the hot direct casting of magnesium alloy make D.C.casting casting mould.
background technologyin prior art, hot direct casting technology for making full maturity in the middle of aluminium industry, in the founding of wrought aluminium alloy is produced, it is a casting technique extensively adopted that hot direct casting is made, but at magnesium industry or blank out; This casting technique has following characteristics: the crystallizer height used is very short, and the time of staying after metal freezing is shaped in crystallizer is short, and substantially avoid post bake phenomenon, thus ingot casting surfacing is smooth, and quality is good; Ingot casting is before crystallizer lower edge accepts the direct cooling of cooling water, and the liquid cave wall of formation is very thin, under the strong cooling of cooling water, ingot casting edge can obtain very high crystallization rate, thus dendrite is tiny, even occurs the discontinuous situation of intergranular pore channel, effectively can reduce ingot casting inverse segregation degree; Hot tap is furnished with above crystallizer, pull open the distance of open liquid level and crystallization front, and improve the melt temperature of open liquid level, when the gas of separating out during ingot casting crystallization and its floating, entrained slag inclusion is had ready conditions floating to open liquid level, thus is conducive to the raising of ingot casting clarity.Because hot tap makes open liquid level improve, same level casting can be realized, decrease the secondary pollution of melt in running gate system.
And the mould of magnesium alloy semi-continuous casting is at present by the impact of its structure, zone of a crystal height is higher, and internal and external temperature gradient ratio is larger, element segregation is serious, inside and outside structural homogenity is poor, very easily produces fire check, pore, loosens and slag inclusion etc., the poor quality of D.C.casting ingot casting.And in order to avoid drawing crack, only have reduction casting speed, production efficiency will be caused so low, and seriously, production cost is high for human and material resources, power consumption; Therefore, how being applied in magnesium alloy industry by the hot direct casting technology for making in aluminium industry is a difficult problem that technical staff needs to capture.
summary of the inventionthe purpose of this utility model solves prior art to there is the technical problem that production efficiency is low, casting property is poor and production cost is high, provides the mould that a kind of magnesium alloy D.C.casting is cast, to overcome the deficiencies in the prior art.
To achieve these goals, the mould of a kind of magnesium alloy D.C.casting casting of the utility model, it comprises casting machine and crucible; Described casting machine is provided with liftable base, and the upper end of base is fixedly connected with dummy bar head; The top of described casting machine is fixedly connected with crystallizer, and dummy bar head correspondence is socketed in the inside of crystallizer; Its main points be the upper end of described crucible be provided with higher than opening end height and the baffle plate of even equidistant arrangement; The external diameter of described crucible openend is provided with running channel, and the outer edge of running channel is provided with Lou material mouth; The upper end of described crystallizer is provided with and is socketed on its internal diameter and expects with leakage the insulation guide shell that mouth is communicated with up and down; The bottom of described insulation guide shell is provided with outer chamfering opening, and the mutual spacing clamping in terraced angle that the outer chamfering opening of insulation guide shell bottom and crystallizer internal diameter are provided with; Described outer chamfering opening is interfixed by bolt with the junction of insulation guide shell; The internal diameter at described terraced angle is provided with graphite annulus, and fits mutually up and down in the lower end of the upper end of graphite annulus and outer chamfering opening; The internal diameter of described graphite annulus is greater than the internal diameter of outer chamfering open end; The diameter of described dummy bar head is greater than the internal diameter of outer chamfering open end, and is less than the internal diameter of graphite annulus; The external diameter of described crystallizer is evenly provided with the water inlet pipe corresponding with the mutual level in terraced angle; The internal diameter at described terraced angle is evenly provided be positioned at be interconnected with water inlet pipe below graphite annulus and lower than the outlet pipe of water inlet pipe height.
In order to improve sealing, described insulation guide shell is provided with sealing ring with the corresponding junction of crystallizer.
Angle between described water inlet pipe and outlet pipe is 120 degree.
The height of described graphite annulus is 13 millimeters.
The utility model reasonable in design, easy to use, due to baffle plate higher than the openend of crucible and evenly equidistant arrangement, the magnesium liquid in crucible can enter running channel from the space between baffle plate, and enters be incubated in guide shell by leaking material mouth; Insulation guide shell can keep the temperature of magnesium liquid effectively, can form a hot tap, without the need to artificial Secondary Control liquid level temperature, decrease operation, and operation is convenient; Outlet pipe can cool ingot casting, arranges one and arranges, and without the need to many rows setting up and down, decrease water consumption, cooling effect does not reduce; The height of graphite annulus is 13mm, and the skin of graphite annulus is coated with grease, magnesium liquid can be separated with it under the effect at grease while the rapid crystallization and freezing in graphite annulus place, outlet pipe can be lowered the temperature to ingot casting, and together decline with dummy bar head under the effect of dummy bar head support, ingot casting pore-free after crystallization, loose phenomenon, ingot quality is high.The utility model solves prior art and there is the technical problem that production efficiency is low, casting property is poor and production cost is high.
accompanying drawing explanationfig. 1 is the utility model structural representation;
Fig. 2 is the structural representation sectional view of crystallizer in the utility model;
Fig. 3 is the structural representation top view of crucible in the utility model.
In figure 1, crucible 2, insulation guide shell 3, dummy bar head 4, crystallizer 5, base 6, water inlet pipe 7, terraced angle 8, outer chamfering opening 9, bolt 10, graphite annulus 11, outlet pipe 12, plug 13, leak material mouth 14, baffle plate 15, running channel
detailed description of the inventionwith reference to Fig. 1, Fig. 2 and Fig. 3, the utility model it comprise casting machine and crucible 1; Casting machine is provided with liftable base 5, and the upper end of base 5 is fixedly connected with dummy bar head 3; The top of casting machine is fixedly connected with crystallizer 4, and dummy bar head 3 correspondence is socketed in the inside of crystallizer 4; The upper end of crucible 1 be provided with higher than opening end height and the baffle plate 14 of even equidistant arrangement; The external diameter of crucible 1 openend is provided with running channel 15, and the outer edge of running channel 15 is provided with Lou material mouth 13; The upper end of crystallizer 4 is provided with and is socketed on its internal diameter and expects with leakage the insulation guide shell 2 that mouth about 13 is communicated with; The bottom of insulation guide shell 2 is provided with outer chamfering opening 8, and the mutual spacing clamping in terraced angle 7 that the outer chamfering opening 8 of insulation guide shell 2 bottom is provided with crystallizer 4 internal diameter; Outer chamfering opening 8 is interfixed by bolt 9 with the junction of insulation guide shell 2; The internal diameter at ladder angle 7 is provided with graphite annulus 10, and fits mutually up and down in the lower end of the upper end of graphite annulus 10 and outer chamfering opening 8; The internal diameter of graphite annulus 10 is greater than the internal diameter of outer chamfering opening 8 end; The diameter of dummy bar head 3 is greater than the internal diameter of outer chamfering opening 8 end, and is less than the internal diameter of graphite annulus 10; The external diameter of crystallizer 4 is evenly provided with and terraced angle 7 water inlet pipe 6 that level is corresponding mutually; The internal diameter at ladder angle 7 is evenly provided be positioned at be interconnected with water inlet pipe 6 below graphite annulus 10 and lower than the outlet pipe 11 of water inlet pipe height; Insulation guide shell 2 is provided with sealing ring with the corresponding junction of crystallizer 4; Angle between water inlet pipe 6 and outlet pipe 11 is 120 degree; The height of graphite annulus 10 is 13 millimeters.
Operation principle: magnesium liquid drops in insulation guide shell 2 from leakage material mouth 13, free-falling is to dummy bar head 3 place, diameter due to dummy bar head 3 is greater than the diameter of outer chamfering opening 8, and is less than the internal diameter of graphite annulus 10, fills the bottom of insulation guide shell 2 under magnesium liquid under falling behind in the stop of dummy bar head 3 gradually; Wait for that after several seconds, dummy bar head 3 falls under the effect of lift again, object is the bottom in order to allow magnesium liquid fully can fill insulation guide shell, prevents pore, the phenomenon such as loose; While dummy bar head 3 falls, magnesium liquid also falls to graphite annulus 10 place thereupon and carries out crystallization, and the ingot casting after crystallization contacts dummy bar head 3 under the effect of self gravitation, and prevents from breaking under the effect of dummy bar head 3 support and together fall thereupon; Outlet pipe 11 on the internal diameter of ladder angle 7 is arranged on the below of graphite annulus 10, and angle and water inlet pipe are 120 degree of angles, therefore can carry out water-cooled cooling to the ingot casting after crystallization.
The baffle plate 14 of crucible 1 openend is higher than the height of openend, and magnesium liquid can enter running channel from the space between baffle plate 14; Leaking material every 4 of mouth is one group totally 4 groups, between split by plug 12, magnesium liquid can enter in insulation guide shell 2 by leaking material mouth 13; The height of graphite annulus 10 is 13 millimeters, and crystallization rate is fast, reduces the temperature of casting, and water consumption reduces, and provides cost savings; Insulation guide shell 2 effectively can be incubated magnesium liquid, forms hot tap, without the need to artificial secondary heating, eliminates loaded down with trivial details technique, and efficiency improves; Outlet pipe 11 is evenly arranged on the border at terraced angle and is individual layer, compared with being provided with two-layer equipment, saves the cost of equipment, save water consumption with tradition; Leaking material mouth is every 4 one group totally 4 groups, and traditional leakage material mouth only has 4, and production efficiency significantly improves, and without the need to increasing personnel amount, can produce the ingot casting of 4 times amount under the prerequisite of equal staff; Outer chamfering opening 8 coordinates the quality that greatly can improve ingot casting with dummy bar head 3, can not produce pore, the phenomenon such as loose.
The utility model is that the principle made according to hot direct casting is made, and is particularly useful for the making of minor diameter ingot casting.Make due to hot direct casting and achieve same level for stream, in crystallizer, liquid level oxide-film is stablized, and does not stir, thus effectively prevent the secondary pollution of melt, improve the inside clarity of metal.The ingot casting smooth surface of producing, ingot casting peripheral tier inverse segregation degree and the degree of depth greatly reduce.Whole ingot structure is even, and the section bar mechanical property squeezed out is high.Effective crystallization of this mould is highly very little, and the cooling velocity of ingot casting improves, and the liquid cave of ingot casting shoals, intermediate zone narrows, and thus ingot casting density improves, and chemical composition is more even along the distribution in ingot casting cross section.
Claims (4)
1. a mould for magnesium alloy D.C.casting casting, it comprises casting machine and crucible (1); Described casting machine is provided with liftable base (5), and the upper end of base (5) is fixedly connected with dummy bar head (3); The top of described casting machine is fixedly connected with crystallizer (4), and dummy bar head (3) correspondence is socketed in the inside of crystallizer (4); It is characterized in that the upper end of described crucible (1) be provided with higher than opening end height and the baffle plate (14) of even equidistant arrangement; The external diameter of described crucible (1) openend is provided with running channel (15), and the outer edge of running channel (15) is provided with Lou material mouth (13); The upper end of described crystallizer (4) is provided with and is socketed on its internal diameter and expects with leakage the insulation guide shell (2) that mouth (13) is communicated with up and down; The bottom of described insulation guide shell (2) is provided with outer chamfering opening (8), and the mutual spacing clamping in terraced angle (7) that the outer chamfering opening (8) of insulation guide shell (2) bottom is provided with crystallizer (4) internal diameter; Described outer chamfering opening (8) is interfixed by bolt (9) with the junction of insulation guide shell (2); The internal diameter of described terraced angle (7) is provided with graphite annulus (10), and fits mutually up and down in the lower end of the upper end of graphite annulus (10) and outer chamfering opening (8); The internal diameter of described graphite annulus (10) is greater than the internal diameter of outer chamfering opening (8) end; The diameter of described dummy bar head (3) is greater than the internal diameter of outer chamfering opening (8) end, and is less than the internal diameter of graphite annulus (10); The external diameter of described crystallizer (4) is evenly provided with and terraced angle (7) water inlet pipe (6) that level is corresponding mutually; The internal diameter of described terraced angle (7) is evenly provided be positioned at that graphite annulus (10) below and water inlet pipe (6) are interconnected and lower than the outlet pipe (11) of water inlet pipe height.
2. the mould of a kind of magnesium alloy D.C.casting casting according to claim 1, is characterized in that described insulation guide shell (2) is provided with sealing ring with the corresponding junction of crystallizer (4).
3. the mould of a kind of magnesium alloy D.C.casting casting according to claim 1, is characterized in that the angle between described water inlet pipe (6) and outlet pipe (11) is 120 degree.
4. the mould of a kind of magnesium alloy D.C.casting casting according to claim 1, is characterized in that the height of described graphite annulus (10) is 13 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957962.6U CN205147258U (en) | 2015-11-27 | 2015-11-27 | Mould of magnesium alloy D. C. casting casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957962.6U CN205147258U (en) | 2015-11-27 | 2015-11-27 | Mould of magnesium alloy D. C. casting casting |
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| CN205147258U true CN205147258U (en) | 2016-04-13 |
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| CN201520957962.6U Active CN205147258U (en) | 2015-11-27 | 2015-11-27 | Mould of magnesium alloy D. C. casting casting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380836A (en) * | 2018-04-18 | 2018-08-10 | 阿坝铝厂 | A kind of aluminum guide crystallization apparatus |
| CN109365768A (en) * | 2018-11-21 | 2019-02-22 | 广东华鳌合金新材料有限公司 | A kind of horizontal casting dummy ingot sub-assembly and a kind of horizontal casting dummy ingot method |
-
2015
- 2015-11-27 CN CN201520957962.6U patent/CN205147258U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380836A (en) * | 2018-04-18 | 2018-08-10 | 阿坝铝厂 | A kind of aluminum guide crystallization apparatus |
| CN109365768A (en) * | 2018-11-21 | 2019-02-22 | 广东华鳌合金新材料有限公司 | A kind of horizontal casting dummy ingot sub-assembly and a kind of horizontal casting dummy ingot method |
| CN109365768B (en) * | 2018-11-21 | 2024-01-30 | 广东华鳌合金新材料有限公司 | Horizontal continuous casting dummy ingot assembly and horizontal continuous casting dummy ingot method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A mold for semi-continuous casting of magnesium alloy Effective date of registration: 20230113 Granted publication date: 20160413 Pledgee: Linshang Bank Co.,Ltd. Feixian sub branch Pledgor: SHANDONG YINGUANG YUYUAN LIGHT METAL PRECISION MOLDING Co.,Ltd. Registration number: Y2023980031285 |