Hard alloy radiator production process

Abstract

The invention discloses a production process of a hard alloy radiator. The production process comprises the following production steps: step 1, casting and casting; 2, homogenizing the cast ingot; 3, cast ingot detection; step 4, extruding; 5, heat treatment; step 6, comprehensive detection; step 7, carrying out process primary shaping; and step 8, pilot plant test / industrialization. According to the hard alloy radiator production process, the yield strength of the radiator can be improved, the comprehensive performance and the yield of the radiator can be effectively improved, the quality of the radiator can be improved, the market competitiveness is effectively improved, and the production cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hard alloy radiator production, in particular to a hard alloy radiator production process. Background Art

[0002] The core technical requirements of hard alloy heat sink products are high and stable mechanical properties; due to the relatively special shape of the heat sink, the difficulty of forming is relatively high. In the existing technology, the 2014 alloy is limited by the alloy performance, resulting in low performance stability of the produced products. Summary of the invention

[0003] The purpose of the present invention is to provide a hard alloy heat sink production process to solve the problems raised in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a hard alloy heat sink production process, comprising the following production steps:

[0005] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0006] Step 2: Ingot homogenization: after casting, homogenization is performed;

[0007] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0008] Step 4: Extrusion: Extruding the ingot selected in step 3, with an extrusion ratio of 42.2;

[0009] Step 5: Heat treatment: quench the product obtained after extrusion;

[0010] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties;

[0011] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0012] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0013] Preferably, in step 2, the homogenization process is specifically as follows: placing the 2014 aluminum alloy ingot into a homogenization furnace, homogenizing at a temperature of 470° C.-495° C. for 10-24 hours, and obtaining a homogenized 2014 aluminum alloy ingot after natural cooling.

[0014] Preferably, in step 4, the extrusion process is specifically: extrusion is performed under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, and an extrusion speed of 0.8-1.5 m / min, and natural cooling is performed after extrusion.

[0015] Preferably, in step five, the heat treatment is specifically as follows: the heat treatment quenching process temperature is controlled at 495°C-500°C and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175°C in the aging furnace.

[0016] Preferably, in step six, the mechanical property of the product tested is specifically the elongation of the product.

[0017] Preferably, in step six, the product inspection standard is: ensuring that the product has no obvious particles and cracks on the surface after extrusion, ensuring the cross-sectional dimensions; the outer diameter and core diameter dimensions after extrusion are allowed to be within the tolerance range of 0.1-0.2mm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a hard alloy heat sink production process, which is beneficial to improving the yield strength of the heat sink, can effectively improve the comprehensive performance and yield rate of the heat sink, is beneficial to improving the quality of the heat sink, effectively improves the market competitiveness and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the process flow of the present invention; DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0022] Please see attached Figure 1 The present invention provides a hard alloy heat sink production process, comprising the following production steps:

[0023] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0024] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized at a temperature of 470°C-495°C for 10-24 hours, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0025] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0026] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0027] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 495℃-500℃, and the temperature is kept for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0028] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0029] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0030] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0031] Embodiment 1:

[0032] A hard alloy radiator production process includes the following production steps:

[0033] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0034] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized at 470°C for 24 hours, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0035] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0036] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0037] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 495℃ and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0038] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0039] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0040] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0041] Embodiment 2:

[0042] A hard alloy radiator production process includes the following production steps:

[0043] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0044] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized for 12 hours at a temperature of 470°C, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0045] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0046] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0047] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 495℃ and kept warm for 80 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0048] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0049] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0050] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0051] Embodiment 3:

[0052] A hard alloy radiator production process includes the following production steps:

[0053] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0054] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized for 16 hours at a temperature of 470°C, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0055] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0056] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0057] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 495℃ and kept warm for 70 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0058] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0059] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0060] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0061] Embodiment 4:

[0062] A hard alloy radiator production process includes the following production steps:

[0063] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0064] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized at 470°C for 20 hours, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0065] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0066] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0067] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 500℃ and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0068] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0069] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0070] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0071] Embodiment 5:

[0072] A hard alloy radiator production process includes the following production steps:

[0073] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0074] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized at 480°C for 24 hours, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0075] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0076] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0077] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 500℃ and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0078] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0079] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0080] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0081] Embodiment 6:

[0082] A hard alloy radiator production process includes the following production steps:

[0083] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0084] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized at 480°C for 10 hours, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0085] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0086] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0087] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 500℃ and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0088] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0089] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0090] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0091] Embodiment 7:

[0092] A hard alloy radiator production process includes the following production steps:

[0093] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0094] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized for 12 hours at a temperature of 490°C, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0095] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0096] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0097] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 500℃ and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0098] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0099] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0100] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0101] Embodiment 8:

[0102] A hard alloy radiator production process includes the following production steps:

[0103] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0104] Step 2: Ingot homogenization: after casting, the ingot is homogenized. The specific homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized at 495°C for 12 hours, and naturally cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0105] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0106] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0107] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 500℃ and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0108] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0109] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0110] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0111] Embodiment 9:

[0112] A hard alloy radiator production process includes the following production steps:

[0113] Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard;

[0114] Step 2: Ingot homogenization: After casting, the ingot is homogenized. The homogenization process is as follows: the 2014 aluminum alloy ingot is placed in a homogenizing furnace, homogenized for 12 hours at a temperature of 490°C, and water-cooled to obtain a homogenized 2014 aluminum alloy ingot.

[0115] Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected;

[0116] Step 4, extrusion: extruding the ingot selected in step 3, with an extrusion ratio of 42.2; the extrusion process is specifically: extruding under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, an extrusion speed of 0.8-1.5m / min, and naturally cooling after extrusion;

[0117] Step 5, heat treatment: quench the product after extrusion; the specific heat treatment is: the quenching process temperature is controlled at 500℃ and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175℃ in the aging furnace;

[0118] Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; ensure that there are no obvious particles and cracks on the surface of the extruded product, and ensure the cross-sectional dimensions; the outer diameter and core diameter after extrusion are allowed to be within the tolerance range of 0.1-0.2mm;

[0119] Step 7: Initial process finalization: determine the scope of production process and transform the production equipment;

[0120] Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

[0121] The ingot homogenization treatment of the present invention can improve the deformation performance of the ingot, reduce or even eliminate the segregation phenomenon, and make the ingot composition more uniform. The homogenization treatment mainly studies the ingot insulation temperature, insulation time and cooling intensity. The ingot insulation temperature can be determined according to the thermal curve data of the ingot, and the insulation time needs to be calculated by formula in combination with production experience; the heating rate is based on the principle that the ingot does not produce cracks, which can be determined based on experience; the cooling intensity needs to be considered in combination with the ingot structure.

[0122] The initial quenching process temperature was controlled at 490°C for 90 minutes. The yield strength after quenching using this process was between 430-445 and was unstable. After research, 500°C was used for 90 minutes. The yield strength after aging was between 445-460. After multiple small batch tests, the performance was highly stable.

[0123] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hard alloy radiator production process, characterized in that: The production process includes the following steps: Step 1: Melting and casting: Cast several furnaces of 2014 aluminum alloy ingots, with 10 tons of material in each furnace, the casting specification is φ335mm, and the alloy composition is carried out according to the internal control standard; Step 2: Ingot homogenization: after casting, homogenization is performed; Step 3: Ingot testing: After the 2014 alloy is cast, the head and tail materials are first taken for homogenization test. After homogenization, the samples are tested for microstructure, Brinell hardness and conductivity, and the ingots with fully dissolved precipitates and the lowest hardness value are selected; Step 4: Extrusion: Extruding the ingot selected in step 3, with an extrusion ratio of 42.2; Step 5: Heat treatment: quench the product obtained after extrusion; Step 6. Comprehensive testing: Test the quenched product to check its mechanical properties; Step 7: Initial process finalization: determine the scope of production process and transform the production equipment; Step 8. Pilot / Industrialization: Carry out industrial production of hard alloy heat sinks.

2. A hard alloy heat sink production process according to claim 1, characterized in that: In the step 2, the homogenization process is specifically as follows: placing the 2014 aluminum alloy ingot into a homogenization furnace, homogenizing at a temperature of 470° C.-495° C. for 10-24 hours, and obtaining a homogenized 2014 aluminum alloy ingot after natural cooling.

3. The hard alloy heat sink production process according to claim 1, characterized in that: In the step 4, the extrusion process is specifically as follows: extrusion is performed under the conditions of an ingot temperature of 380°C-420°C, a mold temperature of 400°C-420°C, and an extrusion speed of 0.8-1.5 m / min, and natural cooling is performed after extrusion.

4. The hard alloy heat sink production process according to claim 1, characterized in that: In the step 5, the heat treatment is specifically as follows: the heat treatment quenching process temperature is controlled at 495°C-500°C and kept warm for 90 minutes; after quenching, it is necessary to ensure that the stretching is completed within two hours and enter the aging furnace, and the aging treatment is carried out for 10 hours at 175°C in the aging furnace.

5. The hard alloy heat sink production process according to claim 1, characterized in that: In step six, the mechanical property of the product is tested, specifically the elongation of the product.

6. The hard alloy heat sink production process according to claim 1, characterized in that: In step six, the product inspection standard is: to ensure that there are no obvious particles and cracks on the surface of the product after extrusion, to ensure the cross-sectional dimensions; the outer diameter and core diameter dimensions after extrusion are allowed to be within the tolerance range of 0.1-0.2mm.

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