Online adjustable quenching device and metal continuous extrusion production line

Abstract

The utility model discloses a kind of online adjustable quenching device and metal continuous extrusion production line, and online adjustable quenching device includes fixed quenching unit and mobile quenching unit, and mobile quenching unit includes second box body with feed inlet, and mobile quenching unit includes second box body, and one end of second box body inserts first opening, and second box body reciprocates along first box body, and second box body and first box body are connected, and first box body and second box body form cooling cavity for accommodating coolant, and the end of first box body away from first opening and the end of second box body away from first box body are respectively provided with feed inlet and discharge outlet, and the material to be cooled enters cooling cavity from feed inlet and is cooled, then leave from discharge outlet. By moving moving wheel, second box body slides in first box body, the position of mobile quenching unit is adjustable, the length of quenching device is adjustable, that is, the cooling length of quenching device can be adjusted according to the quenching time required by different metal materials, and the mechanical properties of metal material are improved.

Description

Technical Field

[0001] This utility model relates to the field of continuous metal extrusion technology, and more specifically, to an online adjustable quenching device and a continuous metal extrusion production line. Background Technology

[0002] Continuous metal extrusion technology is a process that utilizes friction and mechanical pressure to achieve the plastic forming of metals. It enables the efficient production of metal products through continuous feeding and dynamic extrusion. Its core principle is that the metal billet enters the closed die cavity under the frictional force of the rotating extrusion roller groove. No external heating is required; the material is softened by frictional heat and then continuously extruded from the die orifice after high-pressure forming.

[0003] Continuously extruded metal extrusions are high-temperature semi-molten materials that require cooling in a quenching device to adjust their crystal structure. Existing quenching devices have a fixed cooling length that cannot be adjusted, making them unsuitable for reducing the temperature of different materials to specific levels. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the existing technology and provide an adjustable online quenching device and a continuous metal extrusion production line, which can adjust the cooling length of quenching as needed.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] On the one hand, this utility model provides an online adjustable quenching device, including: a fixed quenching unit and a moving quenching unit;

[0007] A fixed quenching unit, the fixed quenching unit includes a first box, one end of the first box is provided with a first opening, and the end of the first box away from the first opening is provided with a discharge port.

[0008] The mobile quenching unit includes a second housing, one end of which is provided with a moving wheel. The end of the second housing away from the moving wheel is inserted into the opening of the first housing. The second housing and the first housing are connected. The end of the first housing near the moving wheel is provided with a feed port.

[0009] On the other hand, this utility model provides a continuous metal extrusion production line, including a continuous extruder and the above-mentioned online adjustable quenching device arranged in sequence. The continuous extruder is used to continuously extrude metal billets to obtain extruded parts, and the online adjustable quenching device is used to cool the extruded parts online.

[0010] Implementing the embodiments of this utility model will have the following beneficial effects:

[0011] This utility model provides an online adjustable quenching device, including a fixed quenching unit and a movable quenching unit. The movable quenching unit includes a second housing, and the fixed quenching unit includes a first housing. The end of the second housing away from the moving wheel is inserted into the opening of the first housing, and the second housing and the first housing are connected. By sliding the movable second housing within the first housing, the position of the movable quenching unit and the length of the quenching device can be adjusted. This allows for adjustment of the cooling length of the quenching device according to the required quenching time for different metal materials, thereby improving the mechanical properties of the metal materials. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] in:

[0014] Figure 1 This is a schematic diagram of an online adjustable quenching device provided in an embodiment of this utility model.

[0015] Figure 2 This is a top view schematic diagram of an online adjustable quenching device provided in an embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of a fixed quenching unit in an online adjustable quenching device provided in this embodiment of the utility model.

[0017] Figure 4 This is a schematic diagram of a movable quenching unit in an online adjustable quenching device provided in this embodiment of the utility model.

[0018] Figure 5 This is a schematic diagram of a continuous metal extrusion production line provided in an embodiment of the present invention.

[0019] 10-Online adjustable quenching device; 1-Fixed quenching unit; 11-First housing; 111-First opening; 112-Discharge port; 113-First housing bottom; 114-First side plate; 115-First end plate; 116-Second side plate; 117-First partition; 1171-First through hole; 118-First drainage chamber; 1181-First drainage outlet; 12-Water inlet pipe; 121-Water inlet; 2-Moving quenching unit; 21-Second housing; 211-Feeding. 212-Second opening, 213-Second box bottom, 214-Third side plate, 215-Second end plate, 216-Fourth side plate, 217-Second partition, 2171-Second through hole, 218-Second drainage chamber, 2181-Second drainage outlet, 22-Moving wheel, 20-Unwinding device, 30-Traction device, 40-Straightening device, 50-Online cleaning device, 60-Continuous extruder, 70-Detection device, 80-Rewinding device, 90-Aging device. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Combination Figures 1-4 This utility model provides an online adjustable quenching device 10, which includes a fixed quenching unit 1 and a movable quenching unit 2.

[0022] The fixed quenching unit 1 includes a first housing 11, with a first opening 111 at one end. The movable quenching unit 2 includes a second housing 21, with one end inserted into the first opening 111. The second housing 21 reciprocates along the first housing 11 and is connected to the first housing 11. The first housing 11 and the second housing 21 form a cooling chamber for containing coolant. The end of the first housing 11 away from the first opening 111 and the end of the second housing 21 away from the first housing 11 are respectively provided with an inlet 211 and an outlet 112.

[0023] In one specific embodiment, the feed inlet 211 is located on the first housing 11, and the discharge outlet 112 is located on the second housing 21. In this embodiment, the metal extruded material enters the quenching device from the first housing 11 and exits the quenching device from the second housing 21 to complete the quenching process. Quenching changes the microstructure of the metal material through rapid cooling. The quenching time affects the mechanical properties of the material. By adjusting the second housing 21, the length of the quenching device can be adjusted, thereby adjusting the quenching time of the metal extruded material in the quenching device. Adjusting the length of the quenching device according to the required quenching time of different metal materials can improve the mechanical properties of the metal materials.

[0024] In another specific embodiment, the feed inlet 211 is located on the second housing 21, and the discharge outlet 112 is located on the first housing 11. In this embodiment, the metal extruded material enters the quenching device from the second housing 21 and exits the quenching device from the first housing 11 to complete quenching. By adjusting the second housing 21 to adjust the quenching time of the metal extruded material in the quenching device, and simultaneously adjusting the distance from the second housing 21 to the extruder outlet, the time interval between the extruded metal material and its entry into the quenching device, i.e., the quenching transfer time, can be adjusted. A short quenching transfer time (≤15 seconds) can preserve the fine grains and dislocation substructures formed during the extrusion process. An excessively long quenching transfer time (e.g., >30 seconds) may cause continuous network compounds to precipitate at grain boundaries, exacerbating the risk of intergranular corrosion. For thick-walled profiles (e.g., 6061 flat bars >8mm), if the quenching transfer time is too long, the temperature difference between the surface and the core increases, affecting the cooling uniformity and leading to inconsistent internal and external properties of the material. Adjusting the quenching transfer time can control the growth rate of metal crystal grains, thereby controlling the grain size. It can also fix supersaturated solid solutions, suppress coarse precipitates, and adjust the mechanical properties of the product.

[0025] It is understandable that the high-temperature metal extruded material from continuous extrusion needs to be cooled down by an online quenching device. At the same time, the crystal structure is adjusted by quenching. The metal extruded material enters the quenching device through the feed port 211 and leaves the quenching device through the discharge port 112, thus realizing online quenching. The online quenching device has a high degree of automation and does not affect continuous production.

[0026] In this embodiment, the online adjustable quenching device 10 is configured with a movable quenching unit 2 and the second box 21 is adjusted to slide within the first box 11. This allows the position of the movable quenching unit 2 to be adjusted and the length of the quenching device to be adjusted. The cooling length of the quenching device can be adjusted according to the quenching time required for different metal materials, thereby improving the mechanical properties of the metal materials.

[0027] Furthermore, the bottom of the second housing 21 is also provided with casters 22, which facilitates the reciprocating movement of the second housing 21 within the first housing 11.

[0028] Furthermore, a connecting structure (not shown in the figure) is provided at the end of the second housing 21 away from the first housing 11. The connecting structure is used to connect to the continuous extruder 60. The connecting structure is connected to the extrusion port of the extruder 60 so that the extruded material can be quenched as soon as possible, fixing the metal atomic lattice structure and avoiding excessive growth of atomic grains, which would affect the mechanical properties of the metal.

[0029] In some alternative embodiments, combined with Figures 1-4 The first box body 11 includes a first box bottom 113 and a first side plate 114, a first end plate 115 and a second side plate 116 arranged around the first box bottom 113. The first side plate 114, the first end plate 115 and the second side plate 116 are connected in sequence. The first end plate 115 is provided with a discharge port 112. The other end of the first box body 11 opposite to the first end plate 115 is a first opening 111.

[0030] The first housing 11 is provided with a first partition 117 on the side near the first end plate 115. The first partition 117 is provided with a first through hole 1171. The first partition 117 connects the first side plate 114 and the second side plate 116. The first partition 117, the first side plate 114, the first end plate 115, and the second side plate 116 together form a first drainage cavity 118. The first drainage cavity 118 is provided with a first drain outlet 1181, which is used to discharge the coolant in the first housing 11.

[0031] Furthermore, the second box 21 is provided with a second opening 212, which is connected to the first opening 111; the second box 21 includes a second box bottom 213 and a third side plate 214, a second end plate 215 and a fourth side plate 216 arranged around the second box bottom 213, the third side plate 214, the second end plate 215 and the fourth side plate 216 are connected in sequence, the second end plate 215 is provided with a feed port 211, and the end of the second box 21 opposite to the second end plate 215 is the second opening 212.

[0032] The second housing 21 has a second partition 217 on the side near the second end plate 215. The first partition 117 has a first through hole 1171. The second partition 217, the third side plate 214, the second end plate 215 and the fourth side plate 216 together form a second drainage cavity 218. The second drainage cavity 218 has a second drain outlet 2181, which is used to discharge the coolant in the second housing 21.

[0033] Furthermore, the first partition 117, the second partition 217, the first side plate 114, the second side plate 116, the third side plate 214, and the fourth side plate 216 together form a cooling cavity.

[0034] It should be noted that the cooling chamber contains coolant, which enters the first drain chamber 118 and the second drain chamber 218 through the first through hole 1171 and the second through hole 2171 respectively, and is circulated and discharged in a timely manner.

[0035] The metal extruded material passes sequentially through the inlet 211, the second through-hole 2171, the first through-hole 1171, and the outlet 112, where it is cooled within the cooling chamber. The coolant level in the cooling chamber is higher than the upper surface of the transported metal extruded material, and also higher than both the first and second through-holes 1171 and 2171, immersing the transported metal extruded material in the coolant and cooling it. The length of the cooling chamber is adjusted by moving the second housing 21 using the moving wheels 22, thus allowing the cooling length of the online adjustable quenching device 10 to be adjusted according to the required quenching time for different metal materials.

[0036] Furthermore, a water inlet pipe 12 is provided at the bottom of the first chamber 113 at the bottom of the cooling chamber, and a plurality of water inlets 121 are provided on the surface of the water inlet pipe 12. Preferably, there are also a plurality of water inlets 12 arranged in parallel.

[0037] It is understandable that the coolant enters the cooling chamber through the inlet 121 of the water inlet pipe 12. Since the water inlet pipe 12 is laid at the bottom of the first housing 11 and multiple inlets 121 are provided, the coolant can enter the cooling chamber evenly, avoiding the formation of large turbulence, avoiding uneven cooling of the metal extruded material, and avoiding the impact of turbulence on the transmission direction of the metal extruded material, thereby affecting the extrusion shape of the metal extruded material.

[0038] In some optional embodiments, the online adjustable quenching device 10 also includes a water tank (not shown in the figure), which is connected to the water inlet pipe 12, the first drain outlet 1181 and the second drain outlet 2181 respectively.

[0039] Understandably, the water in the storage tank enters the cooling chamber through the inlet pipe 12, and the water in the cooling chamber enters the first drain chamber 118 and the second drain chamber 218 through the first through hole 1171 and the second through hole 2171, respectively, and then is discharged into the storage tank through the first drain outlet 1181 and the second drain outlet 2181, respectively, and the cycle repeats to cool the tank.

[0040] In some alternative embodiments, the bottom of the first drainage chamber 118 is recessed downward to form a first settling groove (not shown in the figure). Further, the bottom of the second drainage chamber 218 is recessed downward to form a second settling groove.

[0041] Understandably, both the first and second settling tanks can buffer and store drainage, facilitating the timely circulation and discharge of coolant from the cooling chamber.

[0042] Reference Figure 5This utility model provides a continuous metal extrusion production line, including a continuous extruder 60 and an online adjustable quenching device 10 arranged in sequence. The online adjustable quenching device 10 is any of the online adjustable quenching devices described in the above embodiments.

[0043] Specifically, the mobile quenching unit 2 is positioned between the continuous extruder 60 and the fixed quenching unit 1. The continuous extruder 60 continuously extrudes the metal billet to obtain an extruded part, which is then cooled online by the online adjustable quenching device 10.

[0044] The continuous extrusion press 60 is a commercially available continuous extrusion press 60 including components such as extrusion rollers, compaction rollers, extrusion shoes, plugs, and extrusion dies. Grooves are formed on the circumference of the extrusion rollers to accommodate and transport the metal billet to be extruded. The compaction rollers are located on the feed side of the extrusion rollers and are used for preliminary compaction and guidance of the metal billet. The extrusion shoe cooperates with the extrusion rollers to form an extrusion cavity, and a groove sealing block is installed on the extrusion shoe to seal the concave grooves of the extrusion rollers. The plug is fixed to the outlet end of the extrusion cavity to prevent the metal billet from continuing to move forward, forcing it to flow out of the extrusion die. The extrusion die is fixed to the extrusion shoe and may include round bar dies or flat bar dies, etc., to prepare conductive parts of different shapes.

[0045] It should be noted that conductive components include copper conductive components, aluminum conductive components, silver conductive components, steel conductive components, copper alloy conductive components, aluminum alloy conductive components, etc. The online adjustable quenching device 10 adjusts the cooling length of the quenching device according to the required quenching transfer time for different conductive component materials, thereby improving the mechanical properties of the conductive components.

[0046] Understandably, continuous production is achieved through continuous extrusion and online cooling of metal billets, resulting in a high degree of automation and fewer processes in continuous metal extrusion production lines. By setting up an online adjustable quenching device, the cooling length of the quenching device can be adjusted according to the quenching time required by different conductive component materials, thereby improving the mechanical properties of the conductive components.

[0047] In some optional embodiments, an unwinding device 20, a traction device 30, a straightening device 40, and an online cleaning device 50 are provided before the continuous extruder 60; the unwinding device 20 is used to unwind the wound metal billet, the traction device 30 traction the metal billet into the straightening device 40 for straightening, the online cleaning device 50 is used to clean the straightened metal billet, and the continuous extruder 60 is used to continuously extrude the cleaned metal billet to obtain an extruded part.

[0048] Specifically, the unwinding device 20 includes a wire spool and a guide wheel assembly. The unwinding device 20 continuously and stably releases the metal billet and adjusts the unwinding tension through the guide wheel assembly to ensure the continuity of material supply and the accuracy of speed synchronization at the front end of the production line.

[0049] The traction device 30 is a traction machine, which includes a pinch roller group, a drive system and a control module. The metal billet is pinched between the rollers. The drive system controls the traction speed through the control module, which is synchronized with the rotation speed of the continuous extruder 60.

[0050] The straightening mechanism is a straightening machine, which includes a transverse straightening unit and a longitudinal straightening unit to eliminate the bending stress of the metal guide metal billet.

[0051] The online cleaning device 50 includes one or more of a first cleaning unit, a second cleaning unit, and a third cleaning unit. The first cleaning unit is used to roughen the surface of the metal billet, which can remove stubborn stains and surface oxide scale. The second cleaning unit smooths the surface of the metal billet, removing powder and solid particles. The smoothing treatment can also prevent solid particles from being stored in the pores or gaps of the rough surface, thus affecting the quality of the extruded material. The third cleaning unit cleans the surface of the metal billet by using liquid to clean the surface of the metal billet.

[0052] The first cleaning unit includes a first rotating brush and a second rotating brush located on both sides of the metal billet. The first rotating brush and the second rotating brush rotate around the metal billet. At the same time, the first rotating brush and the second rotating brush can also rotate around their own rotation axis.

[0053] The second cleaning unit includes a rotating disk, a brush holder, and a brush. The metal blank passes through the center of the rotating disk, which rotates around the metal blank. There are two or more brush holders, which are evenly distributed and fixed in the circumference of the rotating disk and rotate together with the rotating disk. The brush is fixed on the brush holder and performs rotating brushing on the metal blank.

[0054] The third cleaning unit includes a water tank with an inlet for the metal billet to enter and an outlet for it to exit on its front and rear sides, respectively. Multiple nozzles are arranged inside the water tank along the direction of the metal billet's extension, and these nozzles spray water to clean the surface of the metal billet. Preferably, the third cleaning unit is an ultrasonic water washing unit.

[0055] Preferably, the online cleaning device 50 further includes a blowing unit for blowing away powder or water. When the online cleaning device 50 includes two or more of the first cleaning unit, second cleaning unit, and third cleaning unit, a blowing unit can be provided after each cleaning unit.

[0056] Preferably, the online cleaning device 50 further includes a heating unit, which is located after the blowing unit. After the metal billet is heated, the metal plasticity is increased, the deformation resistance is reduced, thereby reducing the hardness requirements of the extrusion die material, increasing the deformation uniformity to facilitate filling the extrusion die and cavity, increasing the extrusion temperature to increase the solid solubility, and putting the material in a high-energy state, which is beneficial for the precipitation of the second phase during subsequent aging. When the online cleaning device 50 is equipped with a third cleaning unit, the heating unit is set to further remove the surface moisture of the metal billet, so as to prevent the undried moisture from being carried into the extruder and causing defects such as bulging due to evaporation of moisture into gas.

[0057] In some optional embodiments, a detection device 70 is provided after the online adjustable quenching device. The detection device 70 includes one or more of an online measuring mechanism, a diameter gauge, and a vision inspection instrument. The online measuring mechanism is used to measure the length of the extruded part, the diameter gauge is used to measure the diameter of the extruded part, and the vision inspection instrument is used to detect surface defects of the extruded part.

[0058] Specifically, the online metering mechanism accurately measures the length of the extruded part; the diameter measuring instrument detects the outer diameter of the extruded part in real time through laser diffraction or CCD imaging.

[0059] Furthermore, the detection device 70 also includes a winding device 80 or an online sawing device, the winding device 80 winding up the extruded part, and the online sawing device sawing the extruded part.

[0060] Specifically, the winding device 80 includes a guide wheel assembly unit and a winding unit. The guide wheel assembly unit includes multiple sets of guide wheels, through which the extruded part is guided into the winding unit for winding, ensuring smooth winding. The winding unit includes a reel and a reel lateral displacement drive, which moves the reel back and forth in a lateral direction perpendicular to the direction of movement of the extruded part to wind up the part.

[0061] For example, pure aluminum metal billet is extruded by a continuous extruder 60 to obtain a pure aluminum extrusion. The pure aluminum extrusion is cooled by an online adjustable quenching device and then wound by a winding device 80 to obtain a pure aluminum conductive part.

[0062] Specifically, the online sawing device includes a sawing machine, a drive mechanism, and a collection mechanism. The drive mechanism drives the sawing machine to move in the direction of the extruded part. During the movement, the sawing machine completes the cutting of the extruded part to a quantitative length, and the collection mechanism collects the cut extruded part.

[0063] In some alternative embodiments, the continuous metal extrusion production line further includes an aging device 90 for aging the extruded part wound on a winding device 80 to obtain a conductive part.

[0064] For example, aluminum alloy metal billet is extruded by continuous extrusion press 60 to obtain aluminum alloy extrusion, the aluminum alloy extrusion is cooled by online adjustable quenching device and then wound by winding device 80, and the wound aluminum alloy extrusion is treated by aging device 90 to obtain aluminum alloy conductive part.

[0065] Specifically, the aging device 90 is an aging furnace.

[0066] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An online adjustable quenching device, characterized in that, include: A fixed quenching unit, the fixed quenching unit including a first housing, one end of the first housing having a first opening; The mobile quenching unit includes a second housing, one end of which is inserted into the first opening. The second housing reciprocates along the first housing and is connected to it. The first housing and the second housing form a cooling chamber for containing coolant. The end of the first housing away from the first opening and the end of the second housing away from the first housing are respectively provided with an inlet and an outlet. The material to be cooled enters the cooling chamber from the inlet and is cooled, and then leaves from the outlet.

2. The online adjustable quenching device according to claim 1, characterized in that, The first box body includes a first box bottom and a first side plate, a first end plate and a second side plate arranged around the first box bottom. The first side plate, the first end plate and the second side plate are connected in sequence. The first end plate is provided with the discharge port. The other end of the first box body opposite to the first end plate is the first opening. The first housing has a first partition on the side near the first end plate. The first partition has a first through hole. The first partition connects the first side plate and the second side plate. The first partition, the first side plate, the first end plate, and the second side plate together form a first drainage cavity. The first drainage cavity has a first drain outlet.

3. The online adjustable quenching device according to claim 2, characterized in that, The second box body is provided with a second opening, which communicates with the first opening; the second box body includes a second box bottom and a third side plate, a second end plate and a fourth side plate arranged around the second box bottom, the third side plate, the second end plate and the fourth side plate are connected in sequence, the second end plate is provided with the feed port, and the end of the second box body opposite to the second end plate is the second opening; The second housing has a second partition on the side near the second end plate. The second partition has a second through hole. The second partition, the third side plate, the second end plate and the fourth side plate together form a second drainage cavity. The second drainage cavity has a second drain outlet.

4. The online adjustable quenching device according to claim 3, characterized in that, The first partition, the second partition, the first side plate, the second side plate, the third side plate, and the fourth side plate together form the cooling cavity; The bottom of the cooling chamber is provided with a water inlet pipe, and the surface of the water inlet pipe is provided with two or more water inlets.

5. The online adjustable quenching device according to claim 3, characterized in that, The bottom of the first drainage chamber is recessed downward to form a first settling trough, and / or the bottom of the second drainage chamber is recessed downward to form a second settling trough.

6. The online adjustable quenching device according to claim 1, characterized in that, The second housing has a connecting structure at the end away from the first housing, and the connecting structure is used to connect to a continuous extruder.

7. A continuous metal extrusion production line, characterized in that, The device includes a continuous extrusion press arranged in sequence and an online adjustable quenching device as described in any one of claims 1 to 6. The continuous extrusion press is used to continuously extrude metal billets to obtain extruded parts, and the online adjustable quenching device is used to cool the extruded parts online.

8. The continuous metal extrusion production line according to claim 7, characterized in that, An unwinding device, a traction device, a straightening device, and an online cleaning device are also provided before the continuous extruder; the unwinding device is used to unwind the wound metal billet, the traction device is used to traction the metal billet and straighten the metal billet, the online cleaning device is used to clean the straightened metal billet, and the continuous extruder is used to continuously extrude the cleaned metal billet to obtain the extruded part.

9. The continuous metal extrusion production line according to claim 7, characterized in that, An inspection device is provided after the online adjustable quenching device. The inspection device includes one or more of the following: an online measuring mechanism, a diameter measuring instrument, and a vision inspection instrument. The online measuring mechanism is used to measure the length of the extruded part, the diameter measuring instrument is used to measure the diameter of the extruded part, and the vision inspection instrument is used to detect surface defects of the extruded part. The detection device further includes a winding device or an online sawing device, wherein the winding device winds up the extruded part, and the online sawing device saws the extruded part.

10. The continuous metal extrusion production line according to claim 9, characterized in that, An aging device is also provided after the detection device.

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