CN207823895U - A kind of crystallization apparatus in aluminum alloy casting technique - Google Patents

Abstract

The utility model provides a crystallization device used in the aluminum alloy casting process, which comprises a crystallizer body, an upper cover plate and a bottom plate. Fitted on the port of the water distribution chamber, a spray tank is provided on the inner wall of the middle through hole, a water distribution hole is provided on the inner wall of the spray tank, a water receiving tank is provided on the bottom plate, and a water receiving pipe extending to the outside of the bottom plate is provided on the bottom surface of the water receiving tank. The bottom plate covers the lower end of the crystallizer body and connects the water receiving tank with the spray tank; adopting the technical scheme of the utility model, by installing the bottom plate and the water receiving tank at the lower end of the crystallizer body, the used cooling water is reasonably recovered , to avoid waste of resources, the water inlet pipe extends into the upper part of the water distribution chamber, so that the cooling water in the water distribution chamber flows upwards from the lower part to form convection, so that the heat energy in the cooling water is uniform, and finally sprayed evenly to the ingot through the water distribution hole It helps to improve the quality of ingots and increase the yield of ingots.

Description

A crystallization device used in aluminum alloy casting process

technical field

The utility model belongs to the technical field of aluminum alloy casting process equipment, in particular to a crystallization device used in the aluminum alloy casting process.

Background technique

Casting molding is an important process method of mechanical manufacturing and processing at present. Metal materials are generally used to make molds, and then casting raw materials are poured into the molds. According to the casting raw materials used and the shapes and structures of the molds, the shapes and structures of casting products are very rich. In the semi-continuous casting production process using aluminum alloy raw materials, most of the heat released by the solidification of the aluminum alloy liquid in the crystallizer is taken away by the cooling water. The cooling water with uniform water flow and stable flow rate can ensure the primary body in the mold Uniform and stable growth of the shell ensures uniform cooling of the slab and reduces the defects of the slab due to uneven thickness of the slab shell or uneven stress caused by the uneven temperature of the ingot. Therefore, a reasonable semi-continuous casting crystallization device structure is for It is very important to improve the quality of ingots and increase the yield of ingots. In the prior art, the patent document with the publication number "CN201572894U" discloses an integrated water-splitting plate crystallizer for aluminum alloy casting. The upper cover plate is connected On the crystallizer body, there is an integrated water diversion plate in the inner cavity of the crystallizer body, the integrated water diversion plate is vertically connected with the inner wall of the inner cavity of the crystallizer body, and rubber is used between the integrated water diversion plate and the bottom surface of the inner cavity of the crystallizer body The inner cavity of the crystallizer body is divided into an outer water chamber and an inner water chamber. The integrated water diversion plate is evenly distributed with water diversion holes for connecting the outer water chamber and the inner water chamber. On the inner wall of the crystallizer body The water spray hole is set, and the water spray hole communicates with the inner water chamber; using the technical scheme of the utility model, the cooling water in the water distribution chamber is sprayed to the surface of the primary ingot more evenly, which plays a certain role in improving the quality of the ingot. However, these cooling waters take away the heat and fail to recover reasonably, resulting in a waste of resources and deteriorating the working environment of the production workshop. , The temperature of the cooling water in the water distribution chamber is not uniform, and the heat taken away from the ingot is also different, which affects the further improvement of the quality of the ingot.

Utility model content

In order to solve the above technical problems, the utility model provides a crystallization device used in aluminum alloy casting process.

The utility model is realized through the following technical solutions.

The utility model provides a crystallization device used in the aluminum alloy casting process, which mainly includes a crystallizer body, an upper cover plate and a bottom plate. The water distribution chamber, the upper cover plate is closed on the port of the water distribution chamber, the inner wall of the middle through hole is provided with a spray tank, and the inner wall of the spray tank is provided with a A water distribution hole, the base plate is provided with a water receiving tank, and the bottom surface of the water receiving tank is provided with a water receiving pipe extending to the outside of the base plate, and the base plate is covered on the lower end of the crystallizer body so that the water receiving tank and the spray The shower is connected.

The outer contour of the spray tank coincides with the outer contour of the water receiving tank.

A sealing ring is provided between the joint surface of the upper cover plate and the crystallizer body.

A sealing ring is provided between the joint surface of the bottom plate and the crystallizer body.

The number of the water-distributing holes is multiple and uniformly distributed along the inner wall of the spray tank.

The diameter of the water separation hole is 3mm to 6mm.

The included angle between the central axis of the water diversion hole and the central axis of the middle through hole is 30° to 60°.

The crystallization device used in the aluminum alloy casting process also includes a water inlet pipe, which penetrates into the water distribution chamber from the lower end of the crystallizer body, and several jet holes are provided on the outer wall of the upper part of the water inlet pipe.

The upper end surface of the water inlet pipe is close to the port of the water distribution chamber.

The vertical distance between the upper end surface of the water inlet pipe and the port of the water distribution chamber is 40mm to 70mm.

The beneficial effect of the utility model is that: adopting the technical scheme of the utility model, by installing the bottom plate and the water receiving tank at the lower end of the crystallizer body, the cooling water after use is reasonably recovered, avoiding waste of resources and cooling The direct discharge of water has a bad influence on the working environment of the production workshop. The evenly distributed water distribution holes make the cooling water evenly sprayed onto the ingot, thereby playing the role of evenly distributing the cooling water. On the other hand, the water inlet pipe extends into the water distribution In the upper part of the chamber, there are multiple jet holes on the outer wall of the water inlet pipe, so that the cooling water in the water distribution chamber flows upward from the lower part, so that the water in the water distribution chamber flows convectively, so that the heat energy in the cooling water is uniform, and the cooling The water is more evenly distributed on the surface of the ingot, so that the ingot can dissipate heat evenly, thereby helping to improve the quality of the ingot and the yield of the ingot. In addition, the utility model has the advantages of simple structure, low manufacturing cost, and easy assembly. .

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of crystallizer body of the present utility model;

Fig. 3 is a structural schematic diagram of the water inlet pipe of the utility model.

In the figure: 1-crystallizer body, 2-upper cover plate, 3-bottom plate, 4-water connection pipe, 5-sealing ring, 6-water inlet pipe, 7-melt, 8-solid-liquid two-phase area, 9-casting Ingot, 10-dummy head, 101-middle through hole, 102-water distribution chamber, 103-spray tank, 104-water distribution hole, 301-water receiving tank, 601-jet hole.

Detailed ways

The technical solution of the utility model is further described below, but the scope of protection is not limited to the description.

As shown in Figures 1 to 3, the utility model provides a crystallization device used in the aluminum alloy casting process, including a crystallizer body 1, an upper cover plate 2 and a bottom plate 3, the crystallizer body 1 has a through hole 101, The crystallizer body 1 is provided with a water-distributing chamber 102 with an open upper end, and the upper cover plate 2 is covered on the port of the water-distributing chamber 102. The inner wall of the middle through hole 101 is provided with a spray tank 103, and the inner wall of the spray tank 103 is provided with The water diversion hole 104 communicated with the water diversion cavity 102, the base plate 3 is provided with a water receiving tank 301, the bottom surface of the water receiving tank 301 is provided with a water receiving pipe 4 extending to the outside of the base plate 3, the base plate 3 covers the lower end of the crystallizer body 1 and makes the connection The water tank 301 communicates with the shower tank 103 .

Adopting the technical scheme of the utility model, by installing the bottom plate and the water receiving tank at the lower end of the crystallizer body, the used cooling water is recovered reasonably, avoiding the waste of resources, and avoiding the direct discharge of cooling water to the working environment of the production workshop The evenly distributed water diversion holes make the cooling water evenly sprayed onto the ingot, thereby evenly distributing the cooling water. On the other hand, the water inlet pipe extends into the upper part of the water diversion chamber, and the outer wall of the water inlet pipe There are also multiple jet holes, so that the cooling water in the water distribution chamber flows upward from the bottom, so that the water in the water distribution chamber flows convectively, so that the heat energy in the cooling water is uniform, and the cooling water is more evenly distributed in the ingot. The surface enables the ingot to dissipate heat evenly, thereby helping to improve the quality of the ingot and the yield of the ingot. In addition, the utility model has the advantages of simple structure, low manufacturing cost, and easy assembly.

In specific applications, as shown in Figure 1, after the casting process starts, the melt enters the mold body, and the metal solidifies to form a liquid-solid two-phase region. Under the cooling effect of cooling water, the dummy head moves downward, and the ingot solidifies and forms .

Further, the outer contour of the spray tank 103 matches the outer contour of the water receiving tank 301 . This is beneficial to completely recycle the used cooling water.

Further, a sealing ring 5 is provided between the joint surface of the upper cover plate 2 and the crystallizer body 1 . Further, a sealing ring 5 is provided between the joint surface of the bottom plate 3 and the crystallizer body 1 . In this way, on the one hand, impurity impregnation is avoided, and the surface quality of the ingot is improved; When the water passes through each corner in the water distribution chamber, the water pressure increases, which further improves the cooling effect on the surface of the ingot.

Further, there are multiple water diversion holes 104 and they are evenly distributed along the inner wall of the spray tank 103 . This facilitates more uniform spraying of the cooling water onto the surface of the ingot.

Further, the diameter of the water separation hole 104 is 3 mm to 6 mm. Due to the large water flow in the cooling water and the small diameter of the water diversion hole, the water pressure is increased, thereby further improving the effect of uniform cooling of the ingot.

Further, the included angle between the central axis of the water diversion hole 104 and the central axis of the central through hole 101 is 30° to 60°.

Furthermore, the crystallization device used in the aluminum alloy casting process also includes a water inlet pipe 6 , which penetrates into the water distribution chamber 102 from the lower end of the crystallizer body 1 , and several jet holes 601 are provided on the outer wall of the upper part of the water inlet pipe 6 . Furthermore, the upper end surface of the water inlet pipe 6 is close to the port of the water distribution chamber 102 . Further, the vertical distance between the upper end surface of the water inlet pipe 6 and the port of the water distribution chamber 102 is 40 mm to 70 mm. , which makes the cooling water in the water-distributing chamber flow upward from the lower part, making the water in the water-distributing chamber flow convectively, so that the heat energy in the cooling water is uniform, and the cooling water is more evenly distributed on the surface of the ingot, so that the ingot can be Uniform heat dissipation, which helps to improve the quality of the ingot and increase the yield of the ingot.

Claims (10)

1. a kind of crystallization apparatus in aluminum alloy casting technique, it is characterised in that：Including crystallizer ontology (1), upper cover plate (2) there is middle through-hole (101), upper end opening is equipped in the crystallizer ontology (1) with bottom plate (3), the crystallizer ontology (1) Divide water cavity (102), the upper cover plate (2) be covered on it is described divide on water cavity (102) port, on middle through-hole (101) inner wall Equipped with spray groove (103), spray groove (103) inner wall is equipped with divides the water cavity tapping hole that (102) are connected to (104) with described, The bottom plate (3) is equipped with water receiving tank (301), and water receiving tank (301) bottom surface, which is equipped with, extends to connecing for the bottom plate (3) outside Water pipe (4), the bottom plate (3) are covered on crystallizer ontology (1) lower end and make the water receiving tank (301) and spray groove (103) it is connected to.

2. as described in claim 1 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：The spray groove (103) outer profile coincide with the water receiving tank (301) outer profile.

3. as described in claim 1 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：The upper cover plate (2) sealing ring (5) is equipped between the crystallizer ontology (1) faying face.

4. as described in claim 1 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：The bottom plate (3) Sealing ring (5) is equipped between crystallizer ontology (1) faying face.

5. as described in claim 1 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：The tapping hole (104) quantity is multiple and is uniformly distributed along the spray groove (103) inner wall.

6. as described in claim 1 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：The tapping hole (104) diameter is 3mm to 6mm.

7. as described in claim 1 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：The tapping hole (104) angle of central axis and middle through-hole (101) central axis is 30 degree to 60 degree.

8. as described in claim 1 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：It is described to be closed for aluminium Crystallization apparatus in golden casting technique further includes water inlet pipe (6), and water inlet pipe (6) penetrates institute by crystallizer ontology (1) lower end It states within a point water cavity (102), water inlet pipe (6) external wall of upper portion is equipped with several jet holes (601).

9. as claimed in claim 8 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：The water inlet pipe (6) upper surface divides water cavity (102) port to be close with described.

10. as claimed in claim 9 for the crystallization apparatus in aluminum alloy casting technique, it is characterised in that：The water inlet pipe (6) upper surface and described the vertical range between water cavity (102) port is divided to be 40mm to 70mm.