Casting assembly and alloy casting method

Abstract

The embodiment of the invention discloses a casting assembly and an alloy casting method, the casting assembly comprises a casting mold and a buffer plate, the buffer plate is used for being arranged in the casting mold, and the buffer plate is obliquely arranged relative to the bottom wall of the casting mold. The alloy liquid is buffered by the buffer plate and then flows into the casting mold before flowing into the casting mold, and the buffer plate is obliquely arranged in the casting mold, so that the fall of the alloy liquid during falling is reduced, the flowing speed of the alloy liquid is slowed down, the alloy liquid stably enters the casting mold, and the impact on the alloy liquid during falling into the casting mold is slowed down; and bubbles generated in the alloy liquid due to impact are reduced, so that the contact area between the alloy liquid and air is reduced, slag generated during casting of the alloy liquid is reduced, and the quality of alloy products is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of alloy production technology, and in particular to a casting assembly and an alloy casting method. Background Art

[0002] With the development of hot-dip alloy technology, alloys are widely used in the hot-dip industry. When casting alloy ingots, the alloy liquid flows out of the chute and impacts the bottom of the casting mold. Under the influence of the impact force, a lot of casting slag is formed in the alloy liquid, which will seriously affect the appearance and quality of the alloy. Especially zinc-aluminum-magnesium alloy is more likely to produce slag than other alloys during the production casting process. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a casting assembly.

[0005] A second aspect of the present invention provides an alloy casting method.

[0006] In view of this, according to the first technical solution of the present application, an alloy casting method is proposed, the casting assembly includes: a casting mold and a buffer plate, the buffer plate is used to be arranged in the casting mold, and the buffer plate is inclined relative to the bottom wall of the casting mold.

[0007] In some technical solutions provided in the present application, optionally, the inclination angle between the buffer plate and the bottom wall of the casting mold is 30 degrees to 60 degrees.

[0008] In some technical solutions provided in the present application, the technical solution may optionally be that there are multiple casting molds, a buffer plate is provided in any casting mold, or at least two casting molds among the multiple casting molds share a buffer plate.

[0009] The second technical solution of the present application provides an alloy casting method, which is used for the casting component of any one of the technical solutions of the first technical solution of the present application, and the alloy casting method comprises:

[0010] In some technical solutions provided in the present application, the technical solution optionally includes a step of placing a buffer plate in the casting mold, specifically including: one end of the buffer plate overlaps the side wall of the casting mold, and the other end of the buffer plate overlaps the bottom wall of the casting mold.

[0011] In some technical solutions provided in the present application, the technical solutions may optionally include, after the step of the alloy liquid flowing through the buffer plate and into the casting mold, the following steps: stopping the casting when the volume of the alloy liquid in the casting mold reaches a first threshold value; removing the buffer plate; and continuing to cast the alloy liquid into the casting mold.

[0012] In some technical solutions provided in the present application, the technical solutions may optionally, after the step of continuing to cast the alloy liquid into the casting mold, further include: stopping the casting when the volume of the alloy liquid in the casting mold reaches a second threshold value; removing the slag formed on the surface of the alloy liquid; continuing to cast the alloy liquid into the casting mold; wherein the second threshold value is greater than the first threshold value.

[0013] In some technical solutions provided in the present application, the technical solutions may optionally, after the step of continuing to cast the alloy liquid into the casting mold, also include: stopping the casting when the liquid level of the alloy liquid in the casting mold reaches a preset position; removing the slag formed on the surface of the alloy liquid; and cooling and solidifying the alloy liquid in the casting mold.

[0014] In some technical solutions provided in the present application, the technical solution can optionally be that the ratio of the first threshold value to the volume of the casting mold is greater than or equal to 1 / 5 and less than or equal to 1 / 4, and the ratio of the second threshold value to the volume of the casting mold is greater than or equal to 1 / 2 and less than or equal to 5 / 6.

[0015] In some technical solutions provided in the present application, the technical solution optionally includes multiple casting molds, and after the step of removing the buffer plate, it also includes: setting the buffer plate in another casting mold; and casting the alloy liquid into the other casting mold.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] Before the alloy liquid flows into the casting mold, it is first buffered by the buffer plate and then flows into the casting mold. The buffer plate is tilted in the casting mold, which reduces the drop of the alloy liquid when it falls, slows down the flow rate of the alloy liquid, and allows the alloy liquid to enter the casting mold smoothly, slows down the impact on the alloy liquid when it falls into the casting mold, reduces the bubbles generated inside the alloy liquid due to the impact, and then reduces the contact area between the alloy liquid and the air, reduces the slag generated by the alloy liquid during casting, and improves the quality of the alloy product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 This is one of the structural schematic diagrams of a casting assembly of an embodiment provided in the present application;

[0020] Figure 2 The second structural schematic diagram of a casting assembly according to an embodiment of the present application;

[0021] Figure 3 The third structural schematic diagram of a casting assembly of an embodiment provided in the present application;

[0022] Figure 4 A schematic flowchart of the steps of an alloy casting method provided in an embodiment of the present application.

[0023] in, Figures 1 to 4 The corresponding relationship between the reference numerals and the component names is as follows:

[0024] 10 casting components, 100 casting molds, 200 buffer plates, 20 chutes, 30 alloy liquids. DETAILED DESCRIPTION

[0025] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0026] The embodiment of the first aspect of the present application provides a casting assembly 10, such as Figure 1 , Figure 2 and Figure 3 As shown, the casting assembly 10 includes: a casting mold 100 and a buffer plate 200 . The buffer plate 200 is used to be arranged in the casting mold 100 . The buffer plate 200 is inclined relative to the bottom wall of the casting mold 100 .

[0027] In this embodiment, the casting mold 100 is used to accommodate the high-temperature alloy liquid 30 flowing out of the chute 20, and the alloy liquid 30 solidifies into an alloy product in the casting mold 100. Exemplarily, the alloy liquid 30 can be a zinc-aluminum-magnesium alloy liquid 30. The buffer plate 200 can be placed in the casting mold 100, and the buffer plate 200 is located above the bottom wall of the casting mold 100, and is inclined relative to the bottom wall, forming a gradually shrinking gap between the bottom wall of the casting mold 100.

[0028] When casting the alloy liquid 30, first place the buffer plate 200 in the casting mold 100, so that the buffer plate 200 is tilted above the bottom wall of the casting mold 100. When casting the alloy liquid 30 into the casting mold 100, the alloy liquid 30 first falls onto the buffer plate 200, then flows tiltedly along the buffer plate 200, and finally flows into the casting mold 100.

[0029] The alloy liquid 30 produces casting slag due to contact with the air, and the slag is viscous slag. In the present application, before the alloy liquid 30 flows into the casting mold 100, it is first buffered by the buffer plate 200 and then flows into the casting mold 100. The buffer plate 200 is tilted in the casting mold 100, which reduces the drop of the alloy liquid 30 when it falls, slows down the flow rate of the alloy liquid 30, and allows the alloy liquid 30 to smoothly enter the casting mold 100, slows down the impact on the alloy liquid 30 when it falls into the casting mold 100, and reduces the bubbles generated inside the alloy liquid 30 due to the impact, thereby reducing the contact area between the alloy liquid 30 and the air, reducing the slag generated by the alloy liquid 30 during casting, and improving the quality of the alloy product.

[0030] Exemplarily, the buffer plate 200 is made of metal, and the buffer plate 200 may be an iron plate or a titanium plate.

[0031] Exemplarily, an operating member is provided on the buffer plate 200 , and an operator can move the buffer plate 200 by clamping the operating member, thereby improving the operating convenience of the buffer plate 200 . The operating member may be a handle or a hook.

[0032] Exemplarily, a slot is provided on the casting mold 100, and the buffer plate 200 is used to be placed in the slot.

[0033] In some embodiments provided in this application, Figure 3 As shown, optionally, the inclination angle between the buffer plate 200 and the bottom wall of the casting mold 100 is 30 degrees to 60 degrees.

[0034] In this embodiment, an inclined angle is formed between the bottom wall of the buffer plate 200 and the bottom wall of the casting mold 100. Figure 3 The middle angle A is the inclination angle, and the inclination angle is 30 degrees to 60 degrees. It can be understood that when the inclination angle is too small, the buffer drop between the buffer plate 200 and the bottom wall of the casting mold 100 is too small, and the flow rate of the alloy liquid 30 on the buffer plate 200 is too slow. When the inclination angle is too large, the buffer drop between the buffer plate 200 and the bottom wall of the casting mold 100 is too large, and the flow rate of the alloy liquid 30 on the buffer plate 200 is too fast. Therefore, by reasonably limiting the inclination angle of the buffer plate 200, controlling the buffer spacing of the buffer plate 200 and the flow rate of the alloy liquid 30 on the buffer plate 200, the buffering effect of the buffer plate 200 is optimized.

[0035] In some embodiments provided in the present application, optionally, there are multiple casting molds 100 , and a buffer plate 200 is provided in any casting mold 100 , or at least two casting molds 100 among the multiple casting molds 100 share a buffer plate 200 .

[0036] In this embodiment, the casting assembly 10 includes a plurality of casting molds 100 , and a buffer plate 200 is disposed in each casting mold 100 , so that the plurality of casting molds 100 can be cast simultaneously, thereby improving the casting efficiency.

[0037] In another possible embodiment, at least two casting molds 100 in the multiple casting molds 100 share a buffer plate 200. For example, the multiple casting molds 100 share a buffer plate 200. After the buffer plate 200 in one casting mold 100 is used, the buffer plate 200 is removed and placed in another casting mold 100, and the alloy liquid 30 is continuously cast into the other casting mold 100 through the buffer plate 200, thereby improving the use efficiency of the buffer plate 200, reducing the number of buffer plates 200, and reducing the product cost of the casting assembly 10.

[0038] The second embodiment of the present application provides an alloy casting method, such as Figure 4 As shown, the alloy casting method is used for the casting component of any one of the embodiments of the first aspect of the present application, and the alloy casting method comprises:

[0039] Step 102: placing a buffer plate in the casting mold, wherein the buffer plate is inclined relative to the bottom wall of the casting mold;

[0040] Step 104: pouring alloy liquid into a casting mold;

[0041] Step 106: The alloy liquid flows into the casting mold along the buffer plate.

[0042] In this embodiment, when casting the molten alloy, the buffer plate is first placed in the casting mold, and the buffer plate is tilted above the bottom wall of the casting mold. When the molten alloy is cast into the casting mold, the molten alloy first falls onto the buffer plate, then flows obliquely along the buffer plate, and finally flows into the casting mold.

[0043] The alloy liquid produces casting slag due to contact with the air, and the slag is viscous slag. In the present application, before the alloy liquid flows into the casting mold, it is first buffered by the buffer plate and then flows into the casting mold. The buffer plate is tilted in the casting mold, which reduces the drop of the alloy liquid when it falls, slows down the flow rate of the alloy liquid, and allows the alloy liquid to enter the casting mold smoothly, slows down the impact on the alloy liquid when it falls into the casting mold, reduces the bubbles generated inside the alloy liquid due to the impact, and then reduces the contact area between the alloy liquid and the air, reduces the slag generated by the alloy liquid during casting, and improves the quality of the alloy product.

[0044] In some embodiments provided in the present application, optionally, the step of placing a buffer plate in the casting mold specifically includes: one end of the buffer plate overlaps the side wall of the casting mold, and the other end of the buffer plate overlaps the bottom wall of the casting mold.

[0045] In this embodiment, the two ends of the buffer plate are overlapped on the side wall and the bottom wall of the casting mold respectively, so that the buffer plate is inclined. No other connecting components are required, which saves parts for connection and improves the convenience of placing the buffer plate.

[0046] For example, an operator may manually fix the buffer plate in the casting mold, or a slot is provided on the casting mold and the buffer plate is placed in the slot to fix the buffer plate.

[0047] In some embodiments provided in the present application, optionally, after the step of the alloy liquid flowing through the buffer plate and then flowing into the casting mold, it also includes: stopping the casting when the volume of the alloy liquid in the casting mold reaches a first threshold value; removing the buffer plate; and continuing to cast the alloy liquid into the casting mold.

[0048] In this embodiment, as the casting action proceeds, the alloy liquid gradually fills the casting mold, the volume of the alloy liquid in the casting mold gradually increases, and the liquid level gradually rises. When the volume of the alloy liquid reaches the first threshold value, the alloy liquid has reduced the casting drop by virtue of its own liquid level height, thereby reducing the impact force of the casting process. In addition, since the bottom of the buffer plate extends into the alloy liquid, the buffering effect is slowed down. At this time, the casting is stopped, and after the buffer plate is removed, the alloy liquid is continued to be cast into the casting mold to avoid the buffer plate from hindering the casting of the alloy liquid.

[0049] In some embodiments provided in the present application, optionally, after the step of continuing to cast the alloy liquid into the casting mold, the step further includes: stopping the casting when the volume of the alloy liquid in the casting mold reaches a second threshold value; removing the slag formed on the surface of the alloy liquid; continuing to cast the alloy liquid into the casting mold; wherein the second threshold value is greater than the first threshold value.

[0050] In this embodiment, after the buffer plate is removed, the volume of the alloy liquid in the casting mold continues to increase with the casting action. When the volume of the alloy liquid in the casting mold reaches the second threshold value, a certain amount of slag has been formed on the surface of the alloy liquid. At this time, the casting is stopped, and the slag on the surface of the alloy liquid is removed before continuing the casting. The slag is cleared during the casting process, which reduces the amount of slag in the alloy liquid and improves the quality of the alloy product.

[0051] In some embodiments provided in the present application, optionally, after the step of continuing to cast the molten alloy into the casting mold, it also includes: stopping the casting when the liquid level of the molten alloy in the casting mold reaches a preset position; removing the slag formed on the surface of the molten alloy; and cooling and solidifying the molten alloy in the casting mold.

[0052] In this embodiment, casting is continued after slag cleaning. When the liquid level of the alloy liquid in the casting mold reaches a preset position, the volume of the alloy liquid has reached the preset requirement. At this time, casting is stopped, the chute is moved to the top of the next casting mold, and all the slag remaining on the surface of the alloy liquid is removed. The slag is cleaned again, which reduces the slag on the surface of the alloy liquid in the casting mold. The alloy liquid solidifies into an alloy product as the casting mold cools. The casting is completed, which improves the quality of the alloy product.

[0053] In some embodiments provided in the present application, optionally, the ratio of the first threshold value to the volume of the casting mold is greater than or equal to 1 / 5 and less than or equal to 1 / 4, and the ratio of the second threshold value to the volume of the casting mold is greater than or equal to 1 / 2 and less than or equal to 5 / 6.

[0054] In this embodiment, by limiting the ratio of the first threshold value to the volume of the casting mold, the buffer plate is removed when the alloy liquid fills 1 / 5 to 1 / 4 of the casting mold. By limiting the ratio of the second threshold value to the volume of the casting mold, the alloy liquid is deslagging when it fills 1 / 2 to 5 / 6 of the casting mold, the time limit for removing the buffer plate and deslagging is reasonably limited, and the deslagging effect of the alloy liquid is optimized.

[0055] Exemplarily, the first threshold may be 1 / 5, 9 / 40 or 1 / 4, and the second threshold may be 1 / 2, 2 / 3 or 5 / 6.

[0056] In some embodiments provided in the present application, optionally, there are multiple casting molds, and after the step of removing the buffer plate, the step further includes: setting the buffer plate in another casting mold; and casting the alloy liquid into the other casting mold.

[0057] In this embodiment, the casting assembly includes multiple casting molds. After the buffer plate in a casting mold is used, the buffer plate is removed and placed in another casting mold. The alloy liquid is continued to be cast into the other casting mold through the buffer plate, thereby improving the use efficiency of the buffer plate, reducing the number of buffer plates, and reducing the product cost of the casting assembly.

[0058] In a specific embodiment, when casting the zinc-aluminum-magnesium alloy, a metal plate (iron plate or titanium plate) is placed in the casting mold, and one end of the metal plate is placed on the edge of the casting mold so that it forms an angle of 30 to 60 degrees with the bottom surface of the casting mold. Before the zinc-aluminum-magnesium alloy liquid flows from the chute into the casting mold, it is first buffered by the metal plate and then flows into the casting mold; when the zinc-aluminum-magnesium alloy liquid is cast to fill 1 / 5 to 1 / 4 of the volume of the casting mold, the metal plate is removed and placed in the next mold to be cast; the zinc-aluminum-magnesium alloy liquid is continued to be cast; when the zinc-aluminum-magnesium alloy liquid fills about 2 / 3 of the volume of the casting mold, part of the surface viscous slag formed by the casting impact is removed, and the zinc-aluminum-magnesium alloy liquid is continued to be cast until the alloy liquid level reaches the specified position, and the chute is moved to the next mold; finally, all the residual surface viscous slag formed by the casting impact is removed, so that there is no surface viscous slag formed by the casting impact on the surface of the alloy liquid in the casting mold, and the alloy liquid is cooled and solidified with the mold, and the casting is completed.

[0059] The method of the present invention is simple to operate and is suitable for casting various zinc-aluminum-magnesium alloy large ingots. Table 1 is a comparison of slag removal data using the alloy casting method of the present application and the existing casting method. The surface sticky slag formed by the casting impact generated by the method of the present application is 30% to 35% less than that of casting without metal plate buffering.

[0060] The comparison data of the average number of slag shovels per mold for the production and casting of RM18, RM20, RM27, RM40, RM44, and RM48 alloy ingots are as follows:

[0061]

[0062] Table 1

[0063] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0065] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", 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 invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A casting assembly (10), characterized in that: include: Casting mold (100); The buffer plate (200) is used to be arranged in the casting mold (100), and the buffer plate (200) is arranged obliquely relative to the bottom wall of the casting mold (100).

2. The casting assembly (10) according to claim 1, characterized in that The inclination angle between the buffer plate (200) and the bottom wall of the casting mold (100) is 30 degrees to 60 degrees.

3. The casting assembly (10) according to claim 1, characterized in that The number of the casting molds (100) is plural, A buffer plate (200) is arranged in any one of the casting molds (100); or At least two of the plurality of casting dies (100) share one buffer plate (200).

4. An alloy casting method, characterized in that: For the casting assembly according to any one of claims 1 to 3, the alloy casting method comprises: Placing a buffer plate in the casting mold, wherein the buffer plate is arranged obliquely relative to the bottom wall of the casting mold; Casting alloy liquid into the casting mold; The alloy liquid flows into the casting mold along the buffer plate.

5. The alloy casting method according to claim 4, characterized in that: The step of placing the buffer plate in the casting mold specifically includes: One end of the buffer plate overlaps with the side wall of the casting mold, and the other end of the buffer plate overlaps with the bottom wall of the casting mold.

6. The alloy casting method according to claim 4, characterized in that: After the alloy liquid flows through the buffer plate and then flows into the casting mold, the method further includes: When the volume of the alloy liquid in the casting mold reaches a first threshold, stopping the casting; removing the buffer plate; Continue pouring the alloy liquid into the casting mold.

7. The alloy casting method according to claim 6, characterized in that: After the step of continuously pouring the alloy liquid into the casting mold, the method further comprises: When the volume of the alloy liquid in the casting mold reaches a second threshold, stopping the casting; removing slag formed on the surface of the alloy liquid; Continue pouring the alloy liquid into the casting mold; The second threshold is greater than the first threshold.

8. The alloy casting method according to claim 7, characterized in that: After the step of continuing to cast the alloy liquid into the casting mold, the method further comprises: When the liquid level of the alloy liquid in the casting mold reaches a preset position, stopping the casting; removing slag formed on the surface of the alloy liquid; The alloy liquid is cooled and solidified in the casting mold.

9. The alloy casting method according to claim 7, characterized in that: The ratio of the first threshold value to the volume of the casting mold is greater than or equal to 1 / 5 and less than or equal to 1 / 4, and the ratio of the second threshold value to the volume of the casting mold is greater than or equal to 1 / 2 and less than or equal to 5 / 6.

10. The alloy casting method according to any one of claims 5 to 9, characterized in that: The number of the casting molds is multiple, and after the step of removing the buffer plate, the method further includes: placing the buffer plate in another casting mold; Casting the alloy liquid into another casting mold.

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