Amorphous alloy master alloy smelting equipment

Abstract

The utility model provides amorphous alloy mother alloy smelting equipment which is characterized by comprising a smelting furnace body, a smelting assembly and a forming assembly, the smelting assembly and the forming assembly are arranged in the furnace body, and amorphous raw materials are melted by the smelting assembly and then poured into the forming assembly; the forming assembly comprises a speed reducing mechanism and a forming mold, and a speed reducing strip is arranged in the speed reducing mechanism. According to the smelting equipment disclosed by the utility model, the cooling speed in the production process of the amorphous master alloy is increased and the amorphous proportion of the amorphous master alloy is increased by controlling the temperature reduction speed of the amorphous master alloy in the pouring process; therefore, the amorphous forming difficulty in the amorphous die-casting process is directly reduced, and the forming ability of amorphous parts in the die-casting process is indirectly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of amorphous alloys, and in particular relates to a smelting device for an amorphous alloy master alloy. Background Art

[0002] Amorphous alloys are a new type of alloy material that has attracted widespread attention in recent years. They have attracted attention for their high elasticity, high strength, high hardness, and excellent corrosion resistance, and have been widely used in specific technical fields. For example, in the field of smart electronic devices, high-precision complex structural parts such as hinges, middle frames, and card trays made of amorphous alloys are widely used in smart folding phones, laptops, and wearable devices. With the further deepening of the industrialization of amorphous alloy materials, the forming process of amorphous alloys in existing technologies has become increasingly mature. The die-casting process can be used to produce high-precision complex amorphous components. Its processing technology and post-processing technology are also becoming more and more perfect, and it has obvious advantages in the field of high-strength and thin structural parts.

[0003] The conditions that restrict the further expansion of amorphous alloy materials into other fields, in addition to the cost of bulk amorphous raw materials and manufacturing costs, are the forming ability of amorphous alloy parts. The forming ability of amorphous alloys limits the size of amorphous parts. If the amorphous forming ability of amorphous alloys in the existing technology can be improved, it is expected that the size of existing amorphous parts can be adaptively expanded to meet the needs of more industries. In the existing technology, improving the amorphous forming ability of amorphous alloys is often improved in the forming process of amorphous alloys, such as increasing the cooling rate after forming, increasing the vacuum degree during the forming process, etc. The above method is difficult to make significant improvements under the condition that the manufacturing process of the current forming equipment, forming molds and vacuum pumping devices has reached a high level, and the input-output ratio in industrialization also needs to be considered. Summary of the Invention

[0004] The purpose of the utility model is to provide an amorphous alloy master alloy smelting device, aiming to improve various parameters of the amorphous alloy master alloy by smelting, thereby indirectly solving the technical problem of insufficient forming ability of amorphous alloy in the die casting process.

[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is as follows:

[0006] The utility model provides an amorphous alloy master alloy smelting device, comprising a smelting furnace body and a smelting component and a molding component arranged in the furnace body, the smelting component melts the amorphous raw material and then pours it into the molding component; the molding component comprises a speed reduction mechanism and a molding die, and a speed reduction strip is provided in the speed reduction mechanism.

[0007] Amorphous alloy master alloy refers to the raw materials for amorphous alloy casting. The preparation process in the prior art is as follows: the raw materials are weighed and proportioned according to the chemical composition of the amorphous alloy. The raw materials used are either elemental raw materials (such as zirconium sponge, pure titanium particles, etc.) or simple alloy raw materials (such as binary alloys such as Al-Cu alloys). After proportioning, they are mixed and placed in a crucible in a melting furnace for smelting. The raw materials are melted into a uniform melt, which is then poured into a simple forming mold, such as a plate mold, a strip mold, or a large granular mold. After cooling and solidification, the master alloy amorphous plate, master alloy amorphous bar, or master alloy large amorphous granules are removed and placed in a crusher for crushing to produce scrap of the desired size for amorphous casting feedstock. In the prior art, the preparation process of amorphous alloy master alloy does not have strict requirements for temperature, humidity, vacuum, or cooling rate compared to the die-casting process of amorphous parts. There are also no strict requirements for whether the amorphous master alloy itself is amorphous. The control of the amorphous part forming ability is completed during the die-casting process of the amorphous parts.

[0008] With a deeper understanding of the processing technology of bulk amorphous, the inventors of the present invention have found that by improving the quality of the amorphous master alloy, the amorphous forming ability of amorphous parts in the subsequent casting process can be effectively improved. Therefore, in the present invention, by controlling the temperature of the amorphous master alloy during the casting process, the cooling rate in the amorphous master alloy production process is increased, and the amorphous proportion of the amorphous master alloy itself is increased, thereby directly reducing the difficulty of amorphous formation in the amorphous die-casting process and indirectly improving the forming ability of amorphous parts in the die-casting process. In the present invention, by adding a deceleration mechanism between the smelting component and the forming die, on the one hand, the cooling rate of the amorphous master alloy melt can be increased, and on the other hand, the loss of the master alloy forming die can be reduced.

[0009] Preferably, the smelting assembly includes a smelting crucible and a heating coil disposed outside the smelting crucible, the deceleration mechanism is disposed below the pouring port of the smelting crucible, and the forming mold is disposed below the deceleration mechanism. The deceleration mechanism is used to directly receive the melt poured from the smelting crucible, initially cool the melt, and stabilize its flow rate.

[0010] Preferably, the deceleration mechanism includes a deceleration groove, a deceleration bar and a blanking port; after the amorphous raw material is heated and melted into a molten liquid in the melting crucible, it is poured from the melting crucible into the feed end of the deceleration groove, and the deceleration bar is fixedly installed at the bottom of the deceleration groove, and the setting direction of the deceleration bar is to intercept the poured alloy melt laterally; the blanking port is provided at the bottom of the discharge end of the deceleration groove, and is a through-hole structure. After the alloy melt flows through the deceleration bar, it flows out of the deceleration groove from the blanking port.

[0011] The deceleration trough is an open trough structure, capable of cooling the melt in a short period of time as it flows from the feed end to the discharge end of the deceleration trough. Within the constraints of this flow velocity and distance, the melt will not drop below its melting point. Furthermore, the interception of the deceleration bar during the melt flow process can largely equalize the flow velocity, maintaining a balanced flow rate along the flow path, allowing the melt to cool evenly and naturally within the deceleration trough, rather than cooling after entering the forming die. This would result in uneven cooling and amorphization of the resulting master alloy plates, strips, or particles. The resulting master alloy raw material after crushing would also be uneven, making it difficult to achieve uniform process control during the die-casting process for amorphous parts (some master alloys are of high quality, others are of low quality, and the quality is uneven). Furthermore, by appropriately reducing the flow velocity of the master alloy melt, erosion of the mold during pouring is reduced, not only enabling rapid cooling of the melt upon entry but also significantly extending the service life of the mold.

[0012] Preferably, the speed reducer is an arched structure with a height of 20% to 50% of the height of the speed reducing groove; the number of speed reducers is set to no more than three. The speed reducers are set to achieve a balanced temperature reduction and uniform flow rate of the amorphous master alloy melt. Generally, no more than three speed reducers of an arched structure with an appropriate height are used to ensure that the technical effect is achieved without affecting the efficiency of the melt flow, thereby avoiding excessive cooling or deceleration that prevents the melt from fully flowing into the forming mold.

[0013] Preferably, the deceleration mechanism further includes a separator bar, one end of which is fixed to the side of the discharge end of the deceleration trough, and the other end extends to the middle of the deceleration trough. The length of the separator bar is 40% to 60% of the length of the deceleration trough. The addition of the separator bar can further balance the flow rate of the molten metal poured into the deceleration trough, and by diverting the flow, it can also improve the efficiency of casting.

[0014] Preferably, the number of the separators is 1 or 2, and the separators divide the interior space of the deceleration trough at equal intervals along the direction of the alloy melt flow rate; when the number of separators is 1, the blanking opening is located at the bottom of the middle position between the side of the deceleration trough and the separator; when the number of separators is 2, the blanking opening is located at the bottom of the middle position between the side of the deceleration trough and the separator, as well as at the bottom of the middle position between two adjacent separators. The number of separators is not necessarily better. The surface energy of amorphous melt itself is low, and excessive separation will lead to an uneven volume of diverted melt, resulting in some blanking openings having more material and others having less material, thereby causing uneven melt flow in the forming mold.

[0015] Preferably, the protruding end of the dividing bar is in a smooth arc shape or a bullet shape, which is more conducive to separating the molten metal and diverting it. The height of the dividing bar is the same as that of the deceleration groove.

[0016] Preferably, the inlet gate of the forming die is arranged relative to the blanking port of the deceleration groove, and the alloy melt enters the forming die through the blanking port.

[0017] Preferably, the mold further includes a position adjustment device disposed outside the deceleration groove, the position adjustment device being used to adjust the inclination angle of the deceleration mechanism. Since the deceleration groove is disposed at the upper end of the forming die, the inclined arrangement allows the master alloy melt to flow smoothly from the feed end to the discharge port under the action of gravity.

[0018] Preferably, the heating coil is fixedly connected to the rotatable coil electrode via a coil connection, and the position adjustment device is a connecting rod structure with one end fixedly connected to the coil connection and the other end fixedly connected to the outer side of the reduction mechanism. This structural design aligns the inclination of the reduction trough with the timing of pouring the smelting crucible within the coil, ensuring smoother flow of the master alloy melt within the reduction trough and a more complete and streamlined overall process.

[0019] The utility model provides an amorphous alloy master alloy smelting equipment, which indirectly solves the technical problem of insufficient forming capacity of amorphous alloy in die casting process by improving various parameters of amorphous alloy master alloy through smelting. The advantages of the smelting equipment in the utility model are:

[0020] 1. The smelting equipment in the present invention does not require any modification or alteration of the existing smelting furnace main body. It only requires the addition of a speed reduction mechanism between the smelting assembly and the forming die, which is simple, easy and low-cost.

[0021] 2. The smelting equipment in the present invention controls the temperature drop rate of the amorphous master alloy during the casting process, thereby improving the cooling rate during the production process of the amorphous master alloy and increasing the amorphous proportion of the amorphous master alloy itself, thereby directly reducing the difficulty of amorphous formation in the amorphous die-casting process and indirectly improving the ability to form amorphous parts in the die-casting process.

[0022] 3. The smelting equipment in the present invention greatly reduces the loss of the master alloy molten metal to the master alloy forming mold during pouring through the setting of the deceleration mechanism. According to statistics from the inventors of the present invention, the technical solution of the present invention increases the service life of the master alloy forming mold by more than 25%, thereby reducing the cost of amorphous master alloy production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the amorphous alloy master alloy melting equipment in the present utility model;

[0024] Figure 2 It is a top view schematic diagram of the amorphous alloy master alloy melting equipment in the present utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the amorphous alloy master alloy melting equipment in the present utility model;

[0026] Figure 4 It is a schematic cross-sectional structure diagram of the speed reduction mechanism in the present utility model;

[0027] Figure 5 for Figure 4 A perspective structural diagram of the middle reduction mechanism;

[0028] Figure 6 This is a schematic diagram of another speed reduction mechanism in the present invention;

[0029] Figure 7 for Figure 6 A perspective structural diagram of the middle reduction mechanism;

[0030] Description of Figure Numbers:

[0031] 101. Furnace body; 102. Melting crucible; 103. Electrode; 104. Speed reduction mechanism; 105. Forming mold; 106. Base; 107. Mold frame; 108. Inlet gate; 109. Heating coil; 110. Vacuum pipe; 111. Connecting rod; 112. Coil connection part;

[0032] 21. Speed reduction groove; 211. Speed reduction strip; 212. Blanking port;

[0033] 22. Speed reduction groove; 221. First dividing strip; 222. Second dividing strip; 223. First blanking opening; 224. Second blanking opening; 225. Third blanking opening. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and technical effects of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. The embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments. In combination with the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. If the specific conditions are not specified in the embodiments, they shall be carried out according to the conventional conditions or the conditions recommended by the manufacturer; if the manufacturer of the reagents or instruments is not specified, they are all conventional products that can be purchased on the market.

[0035] In the description of this utility model, the term "and / or" describes the relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the related objects are in an "or" relationship.

[0036] In addition, unless the context clearly requires otherwise, expressions in the singular form of a word should be understood to include the plural form of the word. The terms "include" or "have" are intended to specify the presence of a feature, number, step, operation, element, part, or combination thereof, but are not used to exclude the presence or possibility of adding one or more other features, numbers, steps, operations, elements, parts, or combinations thereof.

[0037] The overall structure of the amorphous alloy master alloy smelting equipment provided in the embodiment of the utility model is as shown in the attached Figure 1 ~Attached Figure 7 shown.

[0038] Specifically, the smelting equipment includes a smelting furnace body 101, a smelting assembly and a forming assembly located within the furnace body. The smelting assembly melts the amorphous raw material and then pours it into the forming assembly. The forming assembly includes a speed reduction mechanism 104 and a forming mold 105. The speed reduction mechanism 104 is equipped with a speed reduction bar. The smelting assembly includes a smelting crucible 102 and a heating coil 109 located outside the smelting crucible 102. The speed reduction mechanism is located below the pouring port of the smelting crucible 102, and the forming mold 105 is located below the speed reduction mechanism.

[0039] The smelting equipment in this embodiment also includes a position adjustment device 111 located outside the reduction mechanism. Specifically, the heating coil 109 is fixedly connected to the rotatable coil electrode 103 via a coil connection portion 112. The position adjustment device 111 is a connecting rod structure with one end fixedly connected to the coil connection portion 112 and the other end fixedly connected to the outside of the reduction mechanism 104. This structural design aligns the inclination of the reduction trough with the timing of pouring the smelting crucible into the coil, ensuring smoother flow of the master alloy melt within the reduction trough and a more complete and streamlined overall process. The smelting equipment in this embodiment also includes a vacuum line 11 communicating with the smelting furnace body 101 for vacuuming. It also includes a mold frame 107 and a base 106 for securing the forming mold 105.

[0040] In one embodiment, as shown in the attached Figure 4 , Attachment Figure 5The deceleration mechanism shown includes a deceleration trough 21, a deceleration bar 211, and a blanking port 212. After the amorphous raw material is heated and melted into a molten liquid within the melting crucible 102, it is poured from the melting crucible 102 into the feed end of the deceleration trough 21. The deceleration bar 211 is an arched structure with a height 50% of the deceleration trough. There is one deceleration bar 211, which is fixed to the bottom of the deceleration trough 21 and is positioned to intercept the poured alloy melt laterally. The blanking port 212 is a through-hole structure located at the bottom of the discharge end of the deceleration trough 21. After flowing through the deceleration bar 211, the alloy melt flows out of the deceleration trough through the blanking port 212 and into the inlet 108 of the forming mold 105.

[0041] In some other embodiments, the height of the speed reduction strip can be set to 20%, 25%, 30%, 35%, 40%, and 45% of the height of the speed reduction groove, respectively, and the number of the speed reduction strips can be set to 2 or 3.

[0042] In another embodiment, as shown in the attached Figure 6 and attached Figure 7 The deceleration mechanism shown in the figure includes, in addition to the deceleration trough body 22, a dividing bar. In this embodiment, a first dividing bar 221 and a second dividing bar 222 are provided to divide the space in the trough into three equal intervals, so that the molten liquid is divided into three streams. One end of the two dividing bars is fixed to the side of the discharge end of the deceleration trough 22, and the other end extends out to the middle of the deceleration trough 22. The two dividing bars are of the same length, both of which are 50% of the length of the deceleration trough 22. The blanking port is located at the bottom of the middle position between the side of the deceleration trough and the dividing bar, as well as at the bottom of the middle position of the two adjacent dividing bars, as shown in the attached figure. Figure 7 The three openings are respectively the first, second, and third openings 223, 225. Each of the three openings is a through-hole structure and is disposed opposite the inlet of the forming mold. The molten alloy flows through the deceleration bar, out of the opening, and into the inlet 108 of the forming mold 105. Preferably, the protruding end of the separator is in a smooth arc shape or a bullet-shaped shape, and the height of the separator is the same as that of the deceleration groove.

[0043] In some other embodiments, the length of the dividing strip may be set to 40%, 45%, 55%, or 60% of the length of the deceleration groove, respectively.

[0044] In some other embodiments, a dividing strip may be provided to divide the space in the slot into two equal parts.

[0045] As can be seen from the above embodiments, the smelting equipment in the present invention does not require the modification or alteration of the existing smelting furnace main body device, and only requires the addition of a speed reduction mechanism between the smelting assembly and the forming mold, which is simple, easy to implement and low in cost. The smelting equipment in the present invention improves the cooling rate in the amorphous master alloy production process by controlling the temperature drop of the amorphous master alloy during the pouring process, and increases the amorphous proportion of the amorphous master alloy itself, thereby directly reducing the difficulty of amorphous formation in the amorphous die-casting process and indirectly improving the ability to form amorphous parts in the die-casting process. The smelting equipment in the present invention greatly reduces the loss of the master alloy melt to the master alloy forming mold during pouring through the provision of the speed reduction mechanism. According to statistics from the inventors of the present invention, the technical solution of the present invention increases the service life of the master alloy forming mold by more than 25%, thereby reducing the cost of amorphous master alloy production.

[0046] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An amorphous alloy master alloy melting equipment, characterized in that, It includes a smelting furnace body and a smelting component and a molding component arranged in the furnace body. The smelting component melts the amorphous raw material and then pours it into the molding component; the molding component includes a speed reduction mechanism and a molding mold, and a speed reduction strip is provided in the speed reduction mechanism.

2. The amorphous alloy master alloy smelting equipment according to claim 1, characterized in that: The smelting component includes a smelting crucible and a heating coil arranged outside the smelting crucible, the deceleration mechanism is arranged below the pouring port of the smelting crucible, and the forming mold is arranged below the deceleration mechanism.

3. The amorphous alloy master alloy smelting equipment according to claim 2, characterized in that: The deceleration mechanism includes a deceleration groove, a deceleration bar and a blanking port; after the amorphous raw material is heated and melted into a molten liquid in the melting crucible, it is poured from the melting crucible into the feed end of the deceleration groove, and the deceleration bar is fixedly installed at the bottom of the deceleration groove, and the setting direction of the deceleration bar is to intercept the poured alloy melt laterally; the blanking port is provided at the bottom of the discharge end of the deceleration groove, and is a through-hole structure. After the alloy melt flows through the deceleration bar, it flows out of the deceleration groove from the blanking port.

4. The amorphous alloy master alloy smelting equipment according to claim 3, characterized in that: The speed reduction strip is an arched structure, and its height is 20% to 50% of the height of the speed reduction groove; the number of the speed reduction strips is set to be no more than 3.

5. The amorphous alloy master alloy smelting equipment according to claim 4, characterized in that: The deceleration mechanism also includes a dividing bar, one end of which is fixed to the side of the discharge end of the deceleration trough, and the other end extends out to the middle of the deceleration trough. The length of the dividing bar is 40% to 60% of the length of the deceleration trough.

6. The amorphous alloy master alloy smelting equipment according to claim 5, characterized in that: The number of the dividing bars is 1 or 2, and the dividing bars divide the internal space of the deceleration trough at equal intervals along the flow direction of the alloy melt; when the number of the dividing bars is 1, the blanking port is located at the bottom of the middle position between the side of the deceleration trough and the dividing bar; when the number of the dividing bars is 2, the blanking port is located at the bottom of the middle position between the side of the deceleration trough and the dividing bar and at the bottom of the middle position of two adjacent dividing bars.

7. The amorphous alloy master alloy melting equipment according to claim 6, characterized in that: The protruding end of the partition bar is in a smooth arc shape or a bullet head shape, and the height of the partition bar is the same as that of the deceleration groove.

8. The amorphous alloy master alloy smelting equipment according to claim 7, characterized in that: The inlet gate of the forming die is arranged relative to the blanking port of the deceleration groove, and the alloy melt enters the forming die through the blanking port.

9. The amorphous alloy master alloy smelting equipment according to claim 8, characterized in that: It also includes a position adjustment device arranged on the outside of the speed reduction mechanism, and the position adjustment device is used to adjust the inclination angle of the speed reduction mechanism.

10. The amorphous alloy master alloy melting equipment according to claim 9, characterized in that: The heating coil is fixedly connected to the rotatable coil electrode via a coil connecting portion, and the position adjustment device is a connecting rod structure with one end fixedly connected to the coil connecting portion and the other end fixedly connected to the outside of the speed reduction mechanism.

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