Alloy casting and preparation process thereof

Abstract

The invention relates to the related technical field of alloy castings, in particular to an alloy casting and a preparation process thereof.The alloy casting comprises, by mass, 2%-8% of copper (Cu), 0.5%-3% of manganese (Mn), 6%-9% of silicon (Si), 2%-5% of zinc (Zn), 0.5%-2% of magnesium (Mg), 0.2%-0.8% of chromium (Cr), 0.5%-1.5% of iron (Fe), 0.5%-2% of nickel (Ni), 0-0.05% of impurities and the balance aluminum (Al), and iron (Fe) and nickel (Ni) in the alloy casting are distributed in a non-uniform state; the distribution quantity of iron (Fe) and nickel (Ni) on the outer side wall of the alloy casting is redundant for the distribution quantity of the inner side wall; the content of iron (Fe) and nickel (Ni) on the outer side wall of the alloy casting can be effectively guaranteed while the content adding amount of the iron (Fe) and the nickel (Ni) in the alloy casting is controlled, so that the hardness of the outer wall of the alloy casting can be effectively guaranteed while the overall strength of the alloy casting is guaranteed, and the wear resistance of the alloy casting is higher.

Description

Technical Field

[0001] The invention relates to the technical field related to alloy castings, and in particular to an alloy casting and a preparation process thereof. Background Art

[0002] Alloy castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and after cooling and subsequent processing such as grinding, the resulting object has a certain shape, size and performance;

[0003] The existing Chinese patent document with announcement number CN110312811A discloses a high-strength aluminum alloy and a high-strength aluminum alloy casting, which includes 2.0 to 13.0 weight % of copper (Cu), 0.4 to 4.0 weight % of manganese (Mn), 0.4 to 2.0 weight % of iron (Fe), 6.0 to 10.0 weight % of silicon (Si), more than 0.0 and less than 7.0 weight % of zinc (Zn), more than 0.0 and less than 2.0 weight % of magnesium (Mg), more than 0.0 and less than 1.0 weight % of chromium (Cr), more than 0.0 and less than 3.0 weight % of nickel (Ni), more than 0.0 and less than 0.05 weight % of production-induced impurities and the remainder of aluminum (Al), so as to improve the strength of the aluminum alloy;

[0004] However, in the above scheme, the metals such as iron (Fe) and nickel (Ni) added to the aluminum alloy are distributed in a relatively uniform state in the aluminum alloy, and the main reason for adding the iron (Fe) element is that iron and nickel can form a solid solution with aluminum, thereby improving the hardness of the aluminum alloy, while the iron (Fe) element distributed in the middle of the aluminum alloy can only play a limited role. Therefore, in the actual production process, in order to ensure that more iron (Fe) elements can be retained on the surface of the aluminum alloy, more iron (Fe) elements need to be added to the aluminum alloy as a whole, thereby ensuring the surface hardness of the aluminum alloy while increasing the overall brittleness of the aluminum alloy. For this reason, the present invention proposes an alloy casting and a preparation process thereof to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an alloy casting and a preparation process thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an alloy casting, comprising (by mass percentage):

[0007] Copper (Cu) 2-8%;

[0008] Manganese (Mn) 0.5-3%;

[0009] Silicon (Si) 6-9%;

[0010] Zinc (Zn) 2-5%;

[0011] Magnesium (Mg) 0.5-2%;

[0012] Chromium (Cr) 0.2-0.8%;

[0013] Iron (Fe) 0.5-1.5%;

[0014] Nickel (Ni)0.5-2%:

[0015] Impurities 0-0.05%;

[0016] The balance is aluminum (Al), and the iron (Fe) and nickel (Ni) in the alloy casting are distributed in a non-uniform state, and the distribution amount of iron (Fe) and nickel (Ni) on the outer wall of the alloy casting is greater than that on the inner wall.

[0017] A preparation process of an alloy casting, wherein the preparation process of the alloy casting is used to cast the above alloy casting, and the preparation process of the alloy casting comprises:

[0018] A batching step, in which copper (Cu), manganese (Mn), silicon (Si), zinc (Zn), magnesium (Mg), chromium (Cr), iron (Fe), nickel (Ni), and aluminum (Al) are mixed according to mass percentage;

[0019] Aluminum alloy smelting process, in which copper (Cu), manganese (Mn), silicon (Si), zinc (Zn), magnesium (Mg), chromium (Cr), iron (Fe), nickel (Ni), and aluminum (Al) are added into a smelting furnace in a good proportion, and the materials are smelted into a molten state;

[0020] A mold preheating process, in which the mold is preheated by a heating structure;

[0021] Die-casting process, in which the molten material in the smelting furnace is transported to the mold through the die-casting mechanism;

[0022] The workpiece forming process, during which the molten material is cooled and shaped.

[0023] Preferably, the smelting furnace is fixedly mounted on a base, a rear mold support, a front support and a rear support are fixedly mounted on the base, the mold comprises a rear mold and a front mold, the rear mold is fixed on the rear mold support, the die-casting mechanism is fixed on the rear support, a guide rod is fixedly mounted on the front support, the front mold comprises a front mold body, a detachable mold body and a molding inner core, the front mold body is movably mounted on the guide rod, and the front mold body is driven by a hydraulic mechanism on the front support, a mounting groove is provided on the front end surface of the front mold body, the detachable mold body is fixed in the mounting groove, the molding inner core and the detachable mold body are welded, a mold cavity is provided on the rear mold, a die-casting port is provided on the bottom surface of the mold cavity, and the die-casting port is connected to the die-casting mechanism through a feeding channel.

[0024] Preferably, the molding inner core and the detachable mold body are both provided with a first cooling cavity and a second cooling cavity, the first cooling cavity is a cylindrical cavity, the second cooling cavity is a tubular cavity, and when the detachable mold body and the front mold body are actually docked, the front mold body seals the port of the first cooling cavity, and the first cooling cavity is provided with a first gas inlet at the port side wall of the detachable mold body part, the bottom of the first cooling cavity is connected with the second cooling cavity through a connecting airway, and the second cooling cavity is provided with a first gas outlet on the port side wall of the detachable mold body part.

[0025] Preferably, a third cooling cavity and a spiral coil installation cavity are provided on the rear mold, and the third cooling cavity and the spiral coil installation cavity are both tubular notches, and the third cooling cavity and the spiral coil installation cavity are both coaxially arranged with the mold cavity, and the port positions of the third cooling cavity and the spiral coil installation cavity are sealed by a sealing cover, and a second gas outlet is provided on the bottom side wall of the third cooling cavity, and a second gas inlet is provided on the sealing cover at the position of the third cooling cavity, and the first gas inlet and the second gas inlet are both connected to the air supply port of the fan, and the first gas outlet and the second gas outlet are both connected to the exhaust duct.

[0026] Preferably, a spiral coil is installed in the spiral coil installation cavity, and both ends of the spiral coil are respectively connected to the positive and negative poles of a power source, and the power source is an AC power source, and the current direction change cycle of the power source is two seconds.

[0027] Preferably, an air distribution seat is integrally formed on the inner side surface of the sealing cover, and air distribution holes are provided on the air distribution seat. The air distribution holes are arranged in a circle around the circumference of the air distribution seat. When the sealing cover is actually installed, the air distribution seat divides the third cooling cavity into two parts, and the cavity parts on both sides are connected through the air distribution holes.

[0028] Preferably, an annular seat is formed on the side wall of the first cooling chamber, a first water inlet is opened on the detachable mold body, the first water inlet is connected with the first cooling chamber, a first water distribution seat is arranged on the annular seat, a first water distribution chamber is opened on the first water distribution seat, the first water inlet is connected with the first water distribution chamber through a water supply pipe, primary atomizing nozzles are evenly arranged on the inner wall of the first water distribution chamber, the primary atomizing nozzles are arranged toward the center of the first cooling chamber, a second water distribution chamber is opened on the air distribution seat, the second water distribution chamber is connected with the second water inlet, a secondary atomizing nozzle is arranged on the side wall of the second water distribution chamber, the end of the secondary atomizing nozzle is located in the air distribution hole, and the ends of the first water inlet and the second water inlet are connected to the water supply equipment through the water supply pipe.

[0029] Preferably, a primary water collecting trough is provided at the bottom of the removable mold body, the primary water collecting trough is connected with the second cooling chamber, and a primary water level sensor is arranged in the primary water collecting trough; a secondary water collecting trough is provided at the bottom of the rear mold, the secondary water collecting trough is connected with the third cooling chamber, and a secondary water level sensor is arranged in the secondary water collecting trough; the primary water level sensor and the secondary water level sensor are both connected with the control center electrical signal on the base.

[0030] Preferably, a primary disturbance structure is provided in the second cooling chamber, and a secondary disturbance structure is provided in the third cooling chamber. The primary disturbance structure and the secondary disturbance structure are both composed of an outer positioning ring, an inner positioning ring, a connecting rod and a toggle module. The inner positioning ring and the outer positioning ring are respectively connected to the inner and outer sides of the connecting rod, and the inner positioning ring and the outer positioning ring are provided at both ends of the connecting rod, and the connecting rod is provided with a circle. The toggle module is evenly arranged between adjacent connecting rods, and the toggle module includes a connecting plate, a first connecting spring, a second connecting spring, and a connecting plate. Spring, air deflector plate and force block, the inner ends of the first connecting spring and the second connecting spring are fixedly connected to the two ends of the connecting plate respectively, the outer ends of the first connecting spring and the second connecting spring are connected to the connecting rod, the air deflector plate is fixedly connected to the connecting plate, the force block is fixedly connected to the side of the air deflector plate, when the first connecting spring and the second connecting spring are in a reset state, the force block is set toward the outside of the disturbance structure, and the connecting plate, the first connecting spring, the second connecting spring and the air deflector plate are all cast from non-ferromagnetic materials, and the force block is cast from ferromagnetic materials.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. By casting an alloy casting, including (by mass percentage): copper (Cu) 2-8%, manganese (Mn) 0.5-3%, silicon (Si) 6-9%, zinc (Zn) 2-5%, magnesium (Mg) 0.5-2%, chromium (Cr) 0.2-0.8%, iron (Fe) 0.5-1.5%, nickel (Ni) 0.5-2%, impurities 0-0.05%, and the balance is aluminum (Al), and ensuring that the distribution amount of iron (Fe) and nickel (Ni) on the outer wall of the alloy casting is more than the distribution amount of the inner wall, so that while controlling the addition amount of iron (Fe) and nickel (Ni) in the alloy casting, the iron (Fe) and nickel (Ni) content at the outer wall of the alloy casting can be effectively guaranteed, so that while ensuring the overall strength of the alloy casting, the hardness of the outer wall of the alloy casting can be effectively guaranteed, making it more wear-resistant;

[0033] 2. By opening a spiral coil installation cavity on the rear mold and arranging a spiral coil in the spiral coil installation cavity, the iron (Fe) and nickel (Ni) elements can be better gathered on the outer surface of the alloy casting during the solidification process of the alloy casting, so that the outer surface of the alloy casting can better form a solid solution of iron, nickel and aluminum to ensure the surface hardness and wear resistance of the alloy casting, and the current in the spiral coil is continuously changed, so that the iron (Fe) and nickel (Ni) elements can be more evenly gathered on the outer surface of the alloy casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the processing equipment of the present invention;

[0035] Figure 2 This is a schematic diagram of the positions of the rear mold and the front mold of the present invention;

[0036] Figure 3 It is a half-section view of the rear mold and the front mold of the present invention;

[0037] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0038] Figure 5 for Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0039] Figure 6 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0040] Figure 7 for Figure 6 A magnified schematic diagram of the structure at D in the middle;

[0041] Figure 8 This is a schematic diagram of the front mold structure of the present invention;

[0042] Fig. 9 It is a half-section view of the rear mold of the present invention;

[0043] Fig.10 for Fig. 9 The enlarged schematic diagram of the structure at E in the middle;

[0044] Fig.11 It is a half-section view of the front mold of the present invention;

[0045] Fig.12 for Fig.11 A magnified schematic diagram of the structure at F in the middle;

[0046] Fig.13 This is a schematic diagram of the sealing cover structure of the present invention;

[0047] Fig.14 for Fig.13 A magnified schematic diagram of the structure at G in the middle;

[0048] Fig.15 This is a schematic diagram of the primary disturbance structure of the present invention;

[0049] Fig.16 for Fig.15 A magnified schematic diagram of the structure at H in the middle;

[0050] Fig.17 for Fig.16 Enlarged schematic diagram of the structure at K in the middle.

[0051] In the figure: base 1, melting furnace 2, rear mold 3, front mold 4, hydraulic mechanism 5, die casting mechanism 6, rear mold bracket 7, front bracket 8, guide rod 9, front mold body 10, detachable mold body 11, forming inner core 12, mold cavity 13, die casting port 14, rear bracket 15, first cooling cavity 16, second cooling cavity 17, first gas inlet 18, connecting airway 19, first gas outlet 20, third cooling cavity 21, spiral coil installation cavity 22, second gas outlet 23, sealing cover 24, second gas inlet 25, gas distribution seat 26, gas distribution hole 27, spiral Coil 28, annular seat 29, first water inlet 30, first water distribution seat 31, first water distribution cavity 32, water delivery pipeline 33, first-level atomizing nozzle 34, second water distribution cavity 35, second water inlet 36, second-level atomizing nozzle 37, first-level water collecting tank 38, first-level water level sensor 39, second-level water collecting tank 40, second-level water level sensor 41, first-level disturbance structure 42, second-level disturbance structure 43, outer positioning ring 44, inner positioning ring 45, connecting rod 46, toggle module 47, connecting plate 48, first connecting spring 49, second connecting spring 50, air deflector plate 51, force block 52. DETAILED DESCRIPTION

[0052] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] See also Figure 1-Figure 17 The present invention provides the following three preferred embodiments:

[0054] Embodiment 1, an alloy casting, comprising (by mass percentage): copper (Cu) 2-8%, manganese (Mn) 0.5-3%, silicon (Si) 6-9%, zinc (Zn) 2-5%, magnesium (Mg) 0.5-2%, chromium (Cr) 0.2-0.8%, iron (Fe) 0.5-1.5%, nickel (Ni) 0.5-2%, impurities 0-0.05%, the balance is aluminum (Al), the iron (Fe) and nickel (Ni) in the alloy casting are distributed in a non-uniform state, and the distribution amount of iron (Fe) and nickel (Ni) on the outer wall of the alloy casting is more than the distribution amount on the inner wall, by casting an alloy casting, comprising (by mass percentage): copper (Cu) 2-8%, manganese (Mn )0.5-3%, silicon (Si)6-9%, zinc (Zn)2-5%, magnesium (Mg)0.5-2%, chromium (Cr)0.2-0.8%, iron (Fe)0.5-1.5%, nickel (Ni)0.5-2%, impurities0-0.05%, the balance is aluminum (Al), and ensure that the distribution of iron (Fe) and nickel (Ni) on the outer wall of the alloy casting is more than that on the inner wall, so that while controlling the addition amount of iron (Fe) and nickel (Ni) in the alloy casting, the content of iron (Fe) and nickel (Ni) at the outer wall of the alloy casting can be effectively guaranteed, so that while ensuring the overall strength of the alloy casting, the hardness of the outer wall of the alloy casting can be effectively guaranteed, making it more wear-resistant.

[0055] Embodiment 2, based on embodiment 1, a process for preparing an alloy casting is provided. The process for preparing an alloy casting is used to cast the above alloy casting. The process for preparing an alloy casting comprises:

[0056] In the batching process, copper (Cu), manganese (Mn), silicon (Si), zinc (Zn), magnesium (Mg), chromium (Cr), iron (Fe), nickel (Ni), and aluminum (Al) are prepared according to mass percentage;

[0057] Aluminum alloy smelting process: In the aluminum alloy smelting process, copper (Cu), manganese (Mn), silicon (Si), zinc (Zn), magnesium (Mg), chromium (Cr), iron (Fe), nickel (Ni), and aluminum (Al) are added into the smelting furnace 2 in a good ratio, and the materials are smelted into a molten state;

[0058] During the mold preheating process, the mold is preheated by the heating structure;

[0059] During the die-casting process, the molten material in the smelting furnace 2 is transported to the mold through the die-casting mechanism 6;

[0060] During the workpiece forming process, the molten material is cooled and shaped.

[0061] The smelting furnace 2 is fixedly mounted on the base 1, on which a rear mold support 7, a front support 8 and a rear support 15 are fixedly mounted. The mold includes a rear mold 3 and a front mold 4. The rear mold 3 is fixed on the rear mold support 7, and the die-casting mechanism 6 is fixed on the rear support 15. A guide rod 9 is fixedly mounted on the front support 8. The front mold 4 includes a front mold body 10, a detachable mold body 11 and a molding inner core 12. The front mold body 10 is movably mounted on the guide rod 9, and the front mold body 10 is driven by the hydraulic mechanism 5 on the front support 8. A mounting groove is provided on the front end surface of the front mold body 10, and the detachable mold body 11 is fixed in the mounting groove. The molding inner core 12 and the detachable mold body 11 are welded. A mold cavity 13 is provided on the rear mold 3, and a die-casting port 14 is provided on the bottom surface of the mold cavity 13. The die-casting port 14 is connected to the die-casting mechanism 6 through a feeding channel.

[0062] The molding inner core 12 and the detachable mold body 11 are both provided with a first cooling cavity 16 and a second cooling cavity 17. The first cooling cavity 16 is a cylindrical cavity, and the second cooling cavity 17 is a tubular cavity. When the detachable mold body 11 and the front mold body 10 are actually docked, the front mold body 10 forms a seal on the port of the first cooling cavity 16, and the first cooling cavity 16 is provided with a first gas inlet 18 at the port side wall of the detachable mold body 11. The bottom of the first cooling cavity 16 is connected with the second cooling cavity 17 through a connecting airway 19. The second cooling cavity 17 is provided with a first gas outlet 20 on the port side wall of the detachable mold body 11. A third cooling cavity 21 and a spiral coil installation cavity 22 are provided. Both the third cooling cavity 21 and the spiral coil installation cavity 22 are tubular notches, and the third cooling cavity 21 and the spiral coil installation cavity 22 are coaxially arranged with the mold cavity 13. The port positions of the third cooling cavity 21 and the spiral coil installation cavity 22 are sealed by a sealing cover 24. A second gas outlet 23 is provided on the bottom side wall of the third cooling cavity 21. A second gas inlet 25 is provided on the sealing cover 24 at the position of the third cooling cavity 21. The first gas inlet 18 and the second gas inlet 25 are connected to the gas supply port of the fan, and the first gas outlet 20 and the second gas outlet 23 are connected to the exhaust duct.

[0063] A spiral coil 28 is installed in the spiral coil installation cavity 22, and both ends of the spiral coil 28 are respectively connected to the positive and negative poles of the power supply, and the power supply is an AC power supply, and the current direction change cycle of the power supply is two seconds. By opening the spiral coil installation cavity 22 on the rear mold 3 and arranging the spiral coil 28 in the spiral coil installation cavity 22, the iron (Fe) and nickel (Ni) elements can be better gathered on the outer surface of the alloy casting during the solidification process of the alloy casting, so that the outer surface of the alloy casting can better form a solid solution of iron, nickel and aluminum to ensure the surface hardness and wear resistance of the alloy casting, and the current in the spiral coil 28 is constantly changing, so that the iron (Fe) and nickel (Ni) elements can be more evenly gathered on the outer surface of the alloy casting.

[0064] An air distribution seat 26 is integrally formed on the inner side surface of the sealing cover 24, and air distribution holes 27 are provided on the air distribution seat 26. The air distribution holes 27 are arranged in a circle around the circumference of the air distribution seat 26. When the sealing cover 24 is actually installed, the air distribution seat 26 divides the third cooling chamber 21 into two parts, and the cavity parts on both sides are connected through the air distribution holes 27.

[0065] An annular seat 29 is formed on the side wall of the first cooling chamber 16, a first water inlet 30 is opened on the detachable mold body 11, the first water inlet 30 is connected to the first cooling chamber 16, a first water distribution seat 31 is arranged on the annular seat 29, a first water distribution chamber 32 is opened on the first water distribution seat 31, the first water inlet 30 is connected to the first water distribution chamber 32 through a water delivery pipe 33, primary atomizing nozzles 34 are evenly arranged on the inner wall of the first water distribution chamber 32, the primary atomizing nozzles 34 are arranged toward the center of the first cooling chamber 16, a second water distribution chamber 35 is opened on the air distribution seat 26, and the second water distribution chamber 35 A second water inlet 36 is connected, and a secondary atomizing nozzle 37 is arranged on the side wall of the second water distribution chamber 35. The end of the secondary atomizing nozzle 37 is located in the air distribution hole 27. The ends of the first water inlet 30 and the second water inlet 36 are connected to the water supply equipment through a water supply pipe. The arrangement of the primary atomizing nozzle 34 and the secondary atomizing nozzle 37 can effectively increase the specific heat capacity of the flowing air, thereby effectively increasing the heat that can be carried away by the air flow, and the wind speed flow rate is much greater than the water speed, and the energy required for the flow is lower. Therefore, while increasing the cooling rate, it can effectively reduce energy consumption, which is very energy-saving and environmentally friendly.

[0066] A primary water collecting trough 38 is provided at the bottom of the detachable mold body 11, and the primary water collecting trough 38 is connected to the second cooling chamber 17, and a primary water level sensor 39 is arranged in the primary water collecting trough 38. A secondary water collecting trough 40 is provided at the bottom of the rear mold 3, and the secondary water collecting trough 40 is connected to the third cooling chamber 21, and a secondary water level sensor 41 is arranged in the secondary water collecting trough 40. The primary water level sensor 39 and the secondary water level sensor 41 are both connected to the control center electrical signal on the base 1. The setting of the primary water collecting trough 38 and the secondary water collecting trough 40 can avoid water collection in the cooling chamber and affect the gas circulation rate, and the setting of the primary water level sensor 39 and the secondary water level sensor 41 can monitor the water collection amount in the primary water collecting trough 38 and the secondary water collecting trough 40, thereby controlling the water distribution efficiency to avoid the occurrence of water accumulation.

[0067] Embodiment 3, on the basis of embodiment 2, a primary disturbance structure 42 is provided in the second cooling chamber 17, and a secondary disturbance structure 43 is provided in the third cooling chamber 21, and the primary disturbance structure 42 and the secondary disturbance structure 43 are both composed of an outer positioning ring 44, an inner positioning ring 45, a connecting rod 46 and a toggle module 47, the inner positioning ring 45 and the outer positioning ring 44 are respectively connected to the inner and outer sides of the connecting rod 46, and the inner positioning ring 45 and the outer positioning ring 44 are provided at both ends of the connecting rod 46, and the connecting rod 46 is provided with a circle on the circumference, and the toggle module 47 is evenly arranged between adjacent connecting rods 46, and the toggle module 47 includes a connecting plate 48, a first connecting spring 49, a second connecting spring 50, a deflector plate 51 and a force block 52, the inner ends of the first connecting spring 49 and the second connecting spring 50 are respectively fixedly connected to the two ends of the connecting plate 48, and the first connecting spring 49. The outer ends of the second connecting spring 50 are connected to the connecting rod 46, the air deflector plate 51 is fixedly connected to the connecting plate 48, and the force block 52 is fixedly connected to the side of the air deflector plate 51. When the first connecting spring 49 and the second connecting spring 50 are in the reset state, the force block 52 is set toward the outside of the disturbance structure, and the connecting plate 48, the first connecting spring 49, the second connecting spring 50, and the air deflector plate 51 are all cast from non-ferromagnetic materials, and the force block 52 is cast from ferromagnetic materials. The setting of the primary disturbance structure 42 and the secondary disturbance structure 43 can drive the force block 52 through the change of the magnetic force direction of the spiral coil 28, thereby disturbing the air deflector plate 51, so that the air flow direction in the cooling chamber is constantly changed, thereby improving the heat exchange effect, and the first connecting spring 49 and the second connecting spring 50 will produce a vibrating effect, thereby further improving the heat exchange cooling efficiency.

[0068] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. An alloy casting, characterized in that: Includes (by mass percentage): Copper (Cu) 2-8%; Manganese (Mn) 0.5-3%; Silicon (Si) 6-9%; Zinc (Zn) 2-5%; Magnesium (Mg) 0.5-2%; Chromium (Cr) 0.2-0.8%; Iron (Fe) 0.5-1.5%; Nickel (Ni)0.5-2%: Impurities 0-0.05%; The balance is aluminum (Al), and the iron (Fe) and nickel (Ni) in the alloy casting are distributed in a non-uniform state, and the distribution amount of iron (Fe) and nickel (Ni) on the outer wall of the alloy casting is greater than that on the inner wall.

2. A process for preparing an alloy casting, characterized in that: The preparation process of the alloy casting is used to cast the alloy casting according to claim 1, and the preparation process of the alloy casting comprises: A batching step, in which copper (Cu), manganese (Mn), silicon (Si), zinc (Zn), magnesium (Mg), chromium (Cr), iron (Fe), nickel (Ni), and aluminum (Al) are mixed according to mass percentage; An aluminum alloy smelting process, in which copper (Cu), manganese (Mn), silicon (Si), zinc (Zn), magnesium (Mg), chromium (Cr), iron (Fe), nickel (Ni), and aluminum (Al) with a good ratio are added to a smelting furnace (2), and the materials are smelted into a molten state; A mold preheating process, in which the mold is preheated by a heating structure; A die-casting process, in which the molten material in the smelting furnace (2) is transported to the mold through a die-casting mechanism (6); The workpiece forming process, during which the molten material is cooled and shaped.

3. The process for preparing an alloy casting according to claim 2, characterized in that: The smelting furnace (2) is fixedly mounted on a base (1); a rear mold support (7), a front support (8) and a rear support (15) are fixedly mounted on the base (1); the mold comprises a rear mold (3) and a front mold (4); the rear mold (3) is fixed on the rear mold support (7); the die-casting mechanism (6) is fixed on the rear support (15); a guide rod (9) is fixedly mounted on the front support (8); the front mold (4) comprises a front mold main body (10), a detachable mold body (11) and a molding inner core (12); the front mold main body (11) is The front mold body (10) is movably mounted on the guide rod (9), and the front mold body (10) is driven by a hydraulic mechanism (5) on the front bracket (8). The front end surface of the front mold body (10) is provided with a mounting groove, and the detachable mold body (11) is fixed in the mounting groove. The molding inner core (12) and the detachable mold body (11) are welded. The rear mold (3) is provided with a mold cavity (13), and the bottom surface of the mold cavity (13) is provided with a die casting port (14), and the die casting port (14) is connected to the die casting mechanism (6) through a feeding channel.

4. The process for preparing an alloy casting according to claim 3, characterized in that: The molding inner core (12) and the detachable mold body (11) are both provided with a first cooling cavity (16) and a second cooling cavity (17); the first cooling cavity (16) is a cylindrical cavity, and the second cooling cavity (17) is a tubular cavity; when the detachable mold body (11) and the front mold body (10) are actually docked, the front mold body (10) forms a seal on the port of the first cooling cavity (16), and a first gas inlet (18) is provided on the port side wall of the first cooling cavity (16) located on the detachable mold body (11); the bottom of the first cooling cavity (16) is connected to the second cooling cavity (17) via a connecting air duct (19), and a first gas outlet (20) is provided on the port side wall of the second cooling cavity (17) located on the detachable mold body (11).

5. The process for preparing an alloy casting according to claim 4, characterized in that: The rear mold (3) is provided with a third cooling cavity (21) and a spiral coil installation cavity (22); the third cooling cavity (21) and the spiral coil installation cavity (22) are both circular tubular notches, and the third cooling cavity (21) and the spiral coil installation cavity (22) are both coaxially arranged with the mold cavity (13); the port positions of the third cooling cavity (21) and the spiral coil installation cavity (22) are sealed by a sealing cover (24); a second gas outlet (23) is provided on the bottom side wall of the third cooling cavity (21); a second gas inlet (25) is provided on the sealing cover (24) at the position of the third cooling cavity (21); the first gas inlet (18) and the second gas inlet (25) are both connected to the gas supply port of the fan; and the first gas outlet (20) and the second gas outlet (23) are both connected to the exhaust duct.

6. The process for preparing an alloy casting according to claim 5, characterized in that: A spiral coil (28) is installed in the spiral coil installation cavity (22), and two ends of the spiral coil (28) are respectively connected to the positive and negative poles of a power source, and the power source is an alternating current power source, and the current direction change cycle of the power source is two seconds.

7. The process for preparing an alloy casting according to claim 6, characterized in that: An air distribution seat (26) is integrally formed on the inner side surface of the sealing cover (24), and air distribution holes (27) are provided on the air distribution seat (26). The air distribution holes (27) are arranged in a circle around the circumference of the air distribution seat (26). When the sealing cover (24) is actually installed, the air distribution seat (26) divides the third cooling chamber (21) into two parts, and the chamber parts on both sides are connected through the air distribution holes (27).

8. The process for preparing an alloy casting according to claim 7, characterized in that: An annular seat (29) is formed on the side wall of the first cooling chamber (16); a first water inlet (30) is provided on the detachable mold body (11); the first water inlet (30) is connected to the first cooling chamber (16); a first water distribution seat (31) is provided on the annular seat (29); a first water distribution chamber (32) is provided on the first water distribution seat (31); the first water inlet (30) is connected to the first water distribution chamber (32) via a water delivery pipe (33); and a first water distribution chamber (32) is uniformly provided with a first water distribution chamber (32). Atomizing nozzle (34), the first-level atomizing nozzle (34) is arranged toward the center of the first cooling chamber (16), a second water distribution chamber (35) is opened on the air distribution seat (26), the second water distribution chamber (35) is connected to a second water inlet (36), a second-level atomizing nozzle (37) is arranged on the side wall of the second water distribution chamber (35), the end of the second-level atomizing nozzle (37) is located in the air distribution hole (27), and the ends of the first water inlet (30) and the second water inlet (36) are connected to the water supply equipment through a water supply pipe.

9. The process for preparing an alloy casting according to claim 8, characterized in that: A primary water collecting trough (38) is provided at the bottom of the detachable mold body (11), the primary water collecting trough (38) is connected to the second cooling chamber (17), and a primary water level sensor (39) is arranged in the primary water collecting trough (38); a secondary water collecting trough (40) is provided at the bottom of the rear mold (3), the secondary water collecting trough (40) is connected to the third cooling chamber (21), and a secondary water level sensor (41) is arranged in the secondary water collecting trough (40); the primary water level sensor (39) and the secondary water level sensor (41) are both connected to the control center electrical signal on the base (1).

10. The process for preparing an alloy casting according to claim 9, characterized in that: A primary disturbance structure (42) is provided in the second cooling chamber (17), and a secondary disturbance structure (43) is provided in the third cooling chamber (21). The primary disturbance structure (42) and the secondary disturbance structure (43) are both composed of an outer positioning ring (44), an inner positioning ring (45), a connecting rod (46) and a toggle module (47). The inner positioning ring (45) and the outer positioning ring (44) are respectively connected to the inner and outer sides of the connecting rod (46), and one inner positioning ring (45) and one outer positioning ring (44) are provided at both ends of the connecting rod (46), and the connecting rod (46) is provided with a circle on its circumference. The toggle module (47) is evenly arranged between adjacent connecting rods (46), and the toggle module (47) includes a connecting plate (48), a first connecting spring (49), a second connecting spring (41), and a second connecting spring (42). The invention relates to a spring (50), an air deflector plate (51) and a force block (52), wherein the inner ends of the first connecting spring (49) and the second connecting spring (50) are respectively fixedly connected to the two ends of the connecting plate (48), and the outer ends of the first connecting spring (49) and the second connecting spring (50) are connected to the connecting rod (46). The air deflector plate (51) is fixedly connected to the connecting plate (48), and the force block (52) is fixedly connected to the side of the air deflector plate (51). When the first connecting spring (49) and the second connecting spring (50) are in a reset state, the force block (52) is arranged toward the outside of the disturbance structure, and the connecting plate (48), the first connecting spring (49), the second connecting spring (50) and the air deflector plate (51) are all cast from non-ferromagnetic materials, and the force block (52) is cast from ferromagnetic materials.

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