Master alloy bar casting mold

Abstract

The utility model discloses a mother alloy bar casting mold, and belongs to the technical field of metal casting molds, and the mother alloy bar casting mold comprises a bottom plate used for being placed in a to-be-constructed area; one end of the combined cylinder is connected to the bottom plate, and the other end is used for casting metal into the combined cylinder; and the anti-sticking material piece layer is arranged on the surface, facing the combined cylinder, of the bottom plate, so that metal in the combined cylinder is only in contact with the anti-sticking material piece layer and the inner wall of the combined cylinder during casting. The molten state and damage to the bottom plate cannot be directly caused, the mother alloy and the mold are easy to separate, scouring erosion of a high-temperature solution to the bottom face of the mold in the mother alloy casting process can be remarkably relieved, adhesion between the mold and the mother alloy is avoided, the utilization rate and the yield of raw materials are increased, and the mold is kept complete; the service life of the die is prolonged; meanwhile, the defects of looseness and shrinkage caused by solidification and shrinkage of the internal master alloy at the upper part of the master alloy are reduced, and raw materials can be saved.

Description

Technical Field

[0001] The present application belongs to the technical field of metal casting molds, and in particular, relates to a master alloy bar casting mold. Background Art

[0002] Master alloy is an intermediate product for casting that has been refined, refined, precisely controlled and optimized in internal structure, which can effectively improve the final quality of castings. Depending on the size of the casting, the diameter of the master alloy bar is generally around 100mm and the length is 400-500mm. The casting mold usually uses a thick-walled steel cylinder with a basically consistent inner diameter and a length greater than the length of the master alloy, and the base uses a thick steel plate of the same material as the steel cylinder.

[0003] In the process of casting the master alloy, the bottom plate of the existing casting mold is very easy to adhere to the master alloy, resulting in the mold bottom plate and the master alloy being "locked". The mold and the master alloy cannot be disassembled and can only be disassembled destructively, causing damage to the mold. Utility Model Content

[0004] The present application aims to solve the technical problem of separation of the master alloy and the mold at least to a certain extent. To this end, the present application provides a master alloy bar casting mold, which can significantly slow down the scouring and erosion of the bottom surface of the mold by the high-temperature solution during the casting of the master alloy, avoid adhesion between the mold and the master alloy, improve the utilization rate and yield rate of raw materials, maintain the integrity of the mold, and extend the service life of the mold.

[0005] The present application embodiment provides a master alloy bar casting mold, which includes:

[0006] The base plate is used to be placed in the area to be constructed;

[0007] A combined cylinder, one end of which is connected to the base plate and the other end is used for pouring metal into it;

[0008] The anti-sticking material layer is arranged on the bottom plate surface facing the combined tube, so that during casting, the metal in the combined tube only contacts with the anti-sticking material layer and the inner wall of the combined tube.

[0009] In an optional embodiment, the combined cylinder includes at least two arc-shaped plates spliced ​​from one end to the other end, and the plurality of arc-shaped plates are combined to form the cylinder body.

[0010] In an optional embodiment, adjacent curved plates are concavely and convexly matched at the joints.

[0011] In an optional embodiment, a convex edge extending from one end to the other end is provided at the splicing edge of the arc-shaped plate, and the convex edge matches the splicing edge of the adjacent arc-shaped plate.

[0012] In an optional embodiment, the combined tube further includes an alignment piece connected to the outer side of the arc-shaped plate, and when adjacent arc-shaped plates are spliced, the alignment pieces connected to the adjacent arc-shaped plates are positioned opposite to each other.

[0013] In an optional embodiment, a locking member is further included to connect the alignment pieces connected to adjacent arc-shaped plates so that the multiple arc-shaped plates are fixed to each other after being spliced.

[0014] In an optional embodiment, a heat-insulating layer is further included, which is attached to the inner wall of the combined tube, and the heat-insulating layer is located at one end of the combined tube away from the bottom plate.

[0015] In an optional embodiment, an inner wall of one end of the combined tube away from the bottom plate is provided with an annular groove for placing the thermal insulation layer, and the thickness of the annular groove is 8-10 mm.

[0016] In an optional embodiment, the anti-sticking material layer has a thickness of 8-10 mm and a height of 80-120 mm.

[0017] In an optional embodiment, it also includes a fixing member connected to the bottom plate, and the anti-sticking material layer is fixed to the bottom plate through the fixing member.

[0018] It can be seen from the above technical solution that the beneficial effects of this application are:

[0019] The present application sets an anti-sticking material layer on the bottom plate, so that the molten metal poured into the combination cylinder no longer directly contacts the bottom plate, but acts on the anti-sticking material layer, which will not directly lead to a molten state and cause damage to the bottom plate. Therefore, the mother alloy and the mold are easy to separate. In this way, the present application can significantly slow down the erosion of the bottom surface of the mold by the high-temperature solution during the casting of the mother alloy, avoid adhesion between the mold and the mother alloy, improve the utilization rate and yield rate of raw materials, maintain the integrity of the mold, and extend the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other embodiments and drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A cross-sectional view of an embodiment of a master alloy rod casting mold of the utility model is shown;

[0022] Figure 2 A top view of an embodiment of a master alloy rod casting mold of the utility model is shown;

[0023] Figure 3 The utility model is shown Figure 1 Sectional view of AA in the middle;

[0024] Figure numerals: 100, mold; 110, bottom plate; 120, anti-sticking material layer; 130, combined tube; 131, first arc plate; 132, second arc plate; 133, flange; 134, alignment plate; 135, insulation layer; 140, locking piece; 150, fixing piece. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0030] Please refer to Figure 1, the first aspect of the present application embodiment, provides a master alloy rod casting mold, the mold 100 has a height of 400-500mm, an outer diameter of 100mm, and other sizes can also be used. The mold 100 includes a bottom plate 110, a combined cylinder 130 and an anti-sticking material layer 120. The bottom plate 110 is used to be placed in the area to be constructed. The bottom plate 110 is made of steel plate, and a plate-like structure of other materials can also be used; the combined cylinder 130 is connected to the bottom plate 110 at one end, and is used to cast metal into it at the other end. The combined cylinder 130 is a cylindrical structure, such as a cylinder, a conical cylinder or other cylindrical structures. The bottom end of the combined cylinder 130 is placed on the bottom plate 110, and the bottom end of the combined cylinder 130 can also be connected by welding, screws or other connection methods; the anti-sticking material layer 120 is arranged on the surface of the bottom plate 110 facing the combined cylinder 130, such as the outer surface of the anti-sticking material layer 120 The diameter is the same as the inner diameter of the combination tube 130, and the anti-sticking material layer 120 is just at the bottom of the internal cavity of the combination tube 130, so that during casting, the metal in the combination tube 130 only contacts the anti-sticking material layer 120 and the inner wall of the combination tube 130. The anti-sticking material layer 120 can be a coating on the surface of the base plate 110, such as anti-sticking Teflon coating, or a layered structure attached to the surface of the base plate 110, such as a graphite gasket, or a groove can be opened on the surface of the base plate 110, and the anti-sticking material layer 120 is matched and snapped into the groove; in an optional embodiment, the thickness of the anti-sticking material layer 120 is 8-10mm. If the anti-sticking material layer 120 is a layered structure attached to the base plate 110, the anti-sticking material layer 120 is provided with a hole for connecting to the base plate 110, and the hole is a wire hole. After the parts connect the anti-sticking material layer 120 and the base plate 110, the top surface of the anti-sticking material layer 120 is kept flush.

[0031] In the process of casting the master alloy with the existing casting mold 100, the bottom plate 110 of the casting mold 100 is very easy to adhere to the master alloy, and destructive removal is the only option, causing damage to the mold 100. This is because when the high-temperature molten metal is casting the master alloy, the molten metal is poured into the mold 100 and has a flushing effect on the bottom plate 110. Under the flushing of the high-temperature molten metal, the bottom plate 110 of the mold 100 is very easy to be flushed into an uneven structure, and it is easy for the molten state to adhere to the master alloy. However, the present application sets an anti-sticking material layer 120 on the bottom plate 110, so that the molten metal poured into the combination tube 130 no longer directly contacts the bottom plate 110, but acts on the anti-sticking material layer 120, and thus will not directly lead to a molten state and cause damage to the bottom plate 110, so the mother alloy and the mold 100 are easy to separate. In this way, the present application can significantly slow down the erosion of the bottom surface of the mold 100 by the high-temperature solution during the casting of the mother alloy, avoid adhesion between the mold 100 and the mother alloy, improve the utilization rate and yield rate of raw materials, maintain the integrity of the mold 100, and extend the service life of the mold 100; at the same time, it also reduces the labor intensity and workload of dismantling the mold 100.

[0032] Please refer to Figure 2In an optional embodiment, the combined cylinder 130 includes at least two arc-shaped plates spliced ​​from one end to the other end, and a plurality of arc-shaped plates are combined to form a cylinder, such as a half of the cylinder of an arc-shaped plate, a third of the cylinder, etc. The arc-shaped plates are spliced ​​at the sides, and the two ends of the arc-shaped plates are the two ends of the cylinder. For example, the combined cylinder 130 includes a first arc-shaped plate 131 and a second arc-shaped plate 132. The first arc-shaped plate 131 and the second arc-shaped plate 132 have the same shape, and are both half of the cylinder. The arrangement direction of the splicing line is parallel to the extension direction of the axis of the cylinder. In an optional embodiment, adjacent arc-shaped plates are matched in concave and convex shapes at the splicing, that is, the side of the arc-shaped plate is provided with a protrusion, and correspondingly, the side protrusion of the arc-shaped plate matches the non-protruding part of the side of the adjacent spliced ​​arc-shaped plate, so that all the arc-shaped plates can be spliced ​​into a cylinder in a fixed manner, and there is a positioning function between adjacent arc-shaped plates. In an optional embodiment, a convex edge 133 is provided at the splicing edge of the arc plate from one end to the other end, and the convex edge 133 is arranged along a straight line, and the convex edge 133 matches the splicing edge of the adjacent arc plate, so that the side protrusion of the arc plate matches the side non-convex part of the adjacent arc plate, and the protruding height of the protrusion is 5-8mm, so that multiple arc plates can be spliced ​​along the height direction to complete the cylinder.

[0033] In an optional embodiment, the combination tube 130 also includes an alignment piece 134 connected to the outer side of the arc plate. When adjacent arc plates are spliced, the alignment pieces 134 connected to the adjacent arc plates are positioned relative to each other. The alignment pieces 134 are also used for positioning. The alignment pieces 134 can be square, round or other shapes. The alignment pieces 134 are made of steel sheets, or sheet structures made of other materials. When adjacent arc plates are spliced, the alignment pieces 134 of the adjacent arc plates are tightly attached to each other, such as the alignment pieces 134 are perpendicular to the side of the arc plate on the outside, so that adjacent alignment pieces 134 overlap. In an optional embodiment, the combination cylinder 130 also includes a locking piece 140, which connects the alignment pieces 134 connected to adjacent arc plates so that the multiple arc plates are fixed to each other after being spliced. For example, the alignment pieces 134 are provided with through holes, and adjacent alignment pieces 134 are positioned relative to each other. In this way, the locking piece 140 can be used to fix the adjacent alignment pieces 134, that is, the adjacent arc plates are spliced ​​and fixed. The locking piece 140 uses bolts, and other parts that are easy to fix can also be used. Multiple arc plates can be spliced ​​together to form a cylinder with a solid structure through multiple locking pieces 140.

[0034] Please refer to Figure 3In an optional embodiment, it also includes an insulation layer 135, which is attached to the inner wall of the combination tube 130. The insulation layer 135 is a cylindrical structure. The outer wall of the insulation layer 135 is close to the inner wall of the combination tube 130, and the insulation layer 135 is located at one end of the combination tube 130 away from the bottom plate 110, that is, the top inner wall of the combination tube 130 in the figure; in an optional embodiment, an annular groove is provided on the inner wall of the end of the combination tube 130 away from the bottom plate 110 for placing the insulation layer 135. The thickness of the annular groove is 8-10mm and the height is 80-120mm. In this way, the insulation layer 135 with a thickness of 8-10mm and a height of 80-120mm can be placed accordingly, such as the insulation layer 135 extending 100mm inward from the top of the combination tube 130; the insulation layer 135 can be made of silicate rock wool, or other insulation material layers such as glass wool.

[0035] During the solidification process of the master alloy, due to the inherent "liquid cavity" characteristics of the metal solution, a large amount of looseness and shrinkage holes will be generated in the top of the produced master alloy rod within the range of approximately 100-200mm, and the quality requirements of the master alloy cannot be met and it will be scrapped. In this case, the length of the steel cylinder of the mold 100 can only be increased to ensure sufficient length of the master alloy, resulting in unnecessary waste of raw materials. The present application adopts an insulation layer 135, which can prevent the top of the master alloy from cooling down rapidly, delay the solidification speed of the high-temperature molten liquid directly contacting the inner wall of the steel cylinder, maintain casting molding, reduce the looseness and shrinkage hole defects of the internal master alloy on the upper part of the master alloy due to solidification shrinkage, and effectively supplement the amount of molten liquid when the core of the master alloy rod solidifies, and can also save the amount of raw material waste caused by the existing process.

[0036] In an optional embodiment, a fixing member 150 is further included, which is connected to the base plate 110. The anti-sticking material layer 120 is fixed to the base plate 110 through the fixing member 150. A through hole penetrating both sides is provided in the middle of the base plate 110. The fixing member 150 passes through the base plate 110 and the bottom end is stuck in the fixing member 150. The top end of the fixing member 150 passes through the base plate 110 and is connected to the through hole provided in the anti-sticking material layer 120. The fixing member 150 adopts bolts, and other parts that are easy to fix can also be adopted. The base plate 110 and the anti-sticking material layer 120 are fixed as a whole by bolts.

[0037] When used in the embodiment of the present application, first, the fixing part 150 is passed through the through hole in the center of the base plate 110, and the circular anti-sticking material layer 120 is fixed to the middle of the base plate 110 by using the fixing part 150, and then the two semicircular arc plates are vertically placed around the anti-sticking material layer 120 of the base plate 110, and the protrusions in the length direction of the edges of the two semi-arc plates are tightly aligned to ensure that the two arc plates are tightly spliced ​​and the inner wall of the bottom end of the combination tube 130 is tightly matched with the anti-sticking material layer 120, and then the locking part 140 is used to firmly fix the perforated alignment pieces 134 on the sides of adjacent arc plates, and finally the cylindrical insulation layer 135 is placed in the annular groove on the inner wall of the top end of the combination tube 130, and the assembly of the mold 100 is completed. The top of the anti-sticking material layer 120, the inner wall of the combination tube 130, and the inner wall of the insulation layer 135 together form a cavity for casting the master alloy. The casting is completed by directly pouring the smelted metal melt into the cavity of the mold 100. After the mold 100 is cooled and the master alloy is formed, the locking piece 140 on the side of the combination tube 130 is first removed, and the multiple arc plates are separated to two or more sides to take out the finished master alloy. The bottom plate 110, the anti-sticking material layer 120 and the combination tube 130 are all reusable as components, and the insulation layer 135 is disposable.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "optional example" or "optional implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0039] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A master alloy bar casting mold, characterized in that: include: A bottom plate (110) is used to be placed in the area to be constructed; A combined cylinder (130), one end of which is connected to the bottom plate (110) and the other end of which is used for pouring metal therein; The anti-sticking material layer (120) is arranged on the surface of the bottom plate (110) facing the combined tube (130), so that during casting, the metal inside the combined tube (130) only contacts the anti-sticking material layer (120) and the inner wall of the combined tube (130).

2. The master alloy rod casting mold according to claim 1, characterized in that: The combined cylinder (130) comprises at least two arc-shaped plates spliced ​​from one end to the other end, and a plurality of the arc-shaped plates are combined to form a cylinder body.

3. The master alloy rod casting mold according to claim 2, characterized in that: The adjacent arc-shaped plates are concave-convex matched at the joints.

4. The master alloy rod casting mold according to claim 3, characterized in that: A convex edge (133) is provided at the splicing edge of the arc-shaped plate from one end to the other end, and the convex edge (133) matches the splicing edge of the adjacent arc-shaped plate.

5. The master alloy rod casting mold according to claim 2, characterized in that: The combined tube (130) further comprises an alignment piece (134) connected to the outer side of the arc-shaped plate; when adjacent arc-shaped plates are spliced, the alignment pieces (134) connected to adjacent arc-shaped plates are positioned opposite to each other.

6. The master alloy rod casting mold according to claim 5, characterized in that: It also includes a locking piece (140) for connecting the alignment pieces (134) connected to adjacent arc-shaped plates, so that a plurality of arc-shaped plates are fixed to each other after being spliced.

7. The master alloy rod casting mold according to claim 1, characterized in that: It also includes a heat-insulating layer (135) which is attached to the inner wall of the combined tube (130), and the heat-insulating layer (135) is located at one end of the combined tube (130) away from the bottom plate (110).

8. The master alloy rod casting mold according to claim 7, characterized in that: An inner wall of one end of the combined cylinder (130) away from the bottom plate (110) is provided with an annular groove for accommodating the thermal insulation layer (135); the thickness of the annular groove is 8-10 mm.

9. The master alloy rod casting mold according to any one of claims 1 to 8, characterized in that: The anti-sticking material layer (120) has a thickness of 8-10 mm and a height of 80-120 mm.

10. The master alloy rod casting mold according to any one of claims 1 to 8, characterized in that: It also comprises a fixing member (150) connected to the bottom plate (110), and the anti-adhesive material layer (120) is fixed to the bottom plate (110) via the fixing member (150).

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