CN212371128U - Full-automatic mobile semi-solid processing platform - Google Patents
Full-automatic mobile semi-solid processing platform Download PDFInfo
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- CN212371128U CN212371128U CN202021054251.5U CN202021054251U CN212371128U CN 212371128 U CN212371128 U CN 212371128U CN 202021054251 U CN202021054251 U CN 202021054251U CN 212371128 U CN212371128 U CN 212371128U
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Abstract
A full-automatic mobile semi-solid processing platform comprises a smelting furnace assembly, a spiral pipe slurry preparation assembly, a trolley type supporting platform and a spiral injection assembly; the smelting furnace assembly comprises a furnace body, a furnace cover, a slurry baffle plate and a driving cylinder; the spiral pipe slurry preparation component comprises a spiral pipe, a spiral pipe guide rod, a discharging guide pipe and a furnace body supporting pipe; the trolley type support platform comprises a movable plate, a top plate, a bottom plate, a hydraulic cylinder, support columns, wheels and guide rails; the spiral injection assembly comprises a servo drive motor, a spiral tube fixing plate, a screw, a spiral tube and a mold. The utility model discloses can be under the low energy consumption condition continuous, high-efficient, clean carry out the thick liquids preparation of semi-solid state thick liquids to can carry out the full-automatic semi-solid processing production of "making promptly" to thick liquids.
Description
Technical Field
The utility model belongs to the technical field of semi-solid metal processing, in particular to semi-solid processing platform of full automatic movable type.
Background
As a novel metal forming process, the semi-solid metal processing technology has the characteristics of high quality, high efficiency, low cost, cleanness and agility, and is called as the near-net forming technology with the most development prospect in the 21 st century by a plurality of famous experts at home and abroad.
At present, the common methods for preparing metal semisolid rheological forming slurry mainly comprise a mechanical stirring method, an electromagnetic stirring method, a double-helix stirring method, a vibration method, a single-roller rotation method, an inclined cooling plate method, a rotary conveying pipe method and the like, most of the prior art uses external power to stir the slurry in the slurry preparation process, an external power device is needed for stirring, the energy consumption is high, and meanwhile, external impurities are easily introduced during stirring, so that new pollution is generated to the slurry; in addition, in the prior art, most methods contact with air in the process of preparing the semi-solid slurry, the high-temperature slurry is easy to generate oxidation reaction with oxygen in the air, impurities in the air are also easy to attach to the slurry, and more importantly, the slurry moves violently in the stirring process, so that the phenomenon of air entrainment is easy to occur, and the quality of slurry preparation is seriously influenced; in addition, in the current semi-solid processing process, a pulping device and a die forming device are separated, a slurry transferring and conveying process is also arranged between the prepared slurry from the pulping device and a forming die, the slurry transferring not only needs to increase the equipment cost, but also easily causes the slurry to be polluted in the slurry transferring process, the cleanliness is reduced, more importantly, a safety accident is easily caused in the high-temperature slurry transferring process, so how to ensure the cleanliness of the metal slurry in the slurry preparing and transmitting process, how to save the energy consumption in the slurry preparing process, how to improve the quality of the slurry, and how to improve the safety of the production in the slurry preparing and transmitting process have decisive influence on the realization of industrialization of the semi-solid processing.
Therefore, a full-automatic semi-solid processing production mode which can ensure the quality and cleanliness of the semi-solid slurry and simultaneously realize the synchronous preparation of the slurry and the forming of a product is needed.
Disclosure of Invention
The utility model aims at providing a can be convenient, safe, high clean, low energy consumption realize continuous semi-solid thick liquids preparation to and the semi-solid processing platform of full automatic movable type of thick liquids "making at present annotating".
In order to achieve the above purpose, the utility model adopts the following technical scheme.
A semi-solid processing platform of full automatic movable formula, including a smelting pot subassembly, spiral pipe thick liquids preparation subassembly, dolly formula supporting platform, spiral injection subassembly.
The smelting pot subassembly includes furnace body, bell, thick liquids baffle, driving cylinder, the bell sets up at the furnace body top, is provided with temperature sensor I, level sensor, bleeder valve on the bell, and the furnace body is inside to be provided with electric heating pipe, and the furnace body bottom is provided with the thick liquids baffle, and the thick liquids baffle is connected with the driving cylinder of fixing on the furnace body outer wall through push rod I.
Spiral pipe thick liquids preparation subassembly includes spiral pipe, spiral pipe guide arm, ejection of compact pipe, furnace body stay tube, the furnace body stay tube sets up in the roof top, be provided with the vacuum valve on the furnace body stay tube pipe wall, the furnace body stay tube is provided with the feed inlet control valve with the roof junction, feed inlet control valve bottom is connected with the spiral pipe, spiral pipe spiral winding is on the spiral pipe guide arm, the spiral pipe is connected with ejection of compact pipe at movable plate upper surface, the spiral pipe is provided with the discharge gate control valve with ejection of compact pipe junction, inside heating pipe and the cooling tube of being provided with of spiral pipe, can realize heating and cooling to the spiral pipe, the spiral pipe upper end is close to feed inlet department and is provided with out.
The trolley type support plate comprises a movable plate, a top plate, a bottom plate, a hydraulic cylinder, support columns, wheels and guide rails, wherein the bottom plate is erected on the guide rails through the wheels, the bottom plate and devices on the bottom plate can move along the guide rails through the wheels, the support columns are arranged on the bottom plate, the top of each support column is provided with the top plate, the hydraulic cylinder is fixed on the lower surface of the top plate and is connected with the movable plate through a push rod II, the hydraulic cylinder can drive the push rod II to move up and down, so that the movable plate can move up and down, and finally the spiral tube helix angle can be adjusted, when the movable plate moves downwards, the whole spiral tube is stretched, when the movable plate moves upwards, the whole spiral tube is compressed, and is similar to a spring structure, so that the size of the helix angle of the spiral tube is changed, the spiral pipe and the whole running device are guided.
The spiral injection assembly comprises a servo driving motor, a spiral tube fixing plate, a screw rod, a spiral tube and a mold, wherein the spiral tube fixing plate is installed on the movable plate, the servo driving motor is arranged above the spiral tube fixing plate, the spiral tube is arranged below the spiral tube fixing plate, the spiral tube is communicated with the spiral tube through a discharge conduit, the screw rod is arranged inside the spiral tube, the top of the screw rod is connected with a driving shaft of the servo driving motor, the servo driving motor can drive the screw rod to rotate, a temperature sensor II is arranged in the wall of the spiral tube, a heating device and a cooling device are arranged, the temperature of the spiral tube can be monitored in real time, an injection nozzle is arranged at the lower end of the spiral tube, semisolid slurry in the spiral tube can be directly.
The beneficial effects of the utility model are as follows.
(1) The utility model discloses a spiral pipe prepares semi-solid state thick liquids, need not under the condition of external power, the fuse-element is making spiral motion along the spiral pipe downwards under the action of gravity, at the in-process that flows, because the special shape of spiral pipe, metal melt's runner also becomes helical shape, consequently, high temperature metal melt is at the in-process that flows downwards along the spiral pipe, continuous rolling, receive the shearing action of spiral pipe simultaneously, under the rolling and shearing action of higher strength, the cooling liquid in the cooling tube in addition is to the cooling of spiral pipe and metal melt, the tiny dendritic crystal of just forming in the metal melt, it is broken immediately, it is tiny to take shape at last, the rounding semi-solid state thick liquids.
(2) The utility model discloses be provided with the vacuum valve on the furnace body stay tube, can take out the air in the spiral pipe through the vacuum valve before thick liquids preparation, make the spiral pipe become vacuum state in, in thick liquids preparation process, because there is not the air in the spiral pipe, effectively avoided the high temperature metal melt in the spiral pipe to be oxidized to and impurity in the air attaches to the melt in the flow, effectively improved the cleanliness factor of thick liquids; the more important effect is that the occurrence of 'air entrainment' is effectively avoided, the quality of the slurry is improved, and the air holes in the finally formed part are greatly reduced.
(3) The utility model discloses the pneumatic cylinder that sets up can drive push rod II and reciprocate, thereby realize reciprocating of movable plate, finally realize the change at spiral pipe spiral angle, when movable plate downstream, the spiral pipe wholly receives the extension, the spiral pipe wholly receives the compression when movable plate upward movement, similar spring structure, with this change the size at spiral pipe spiral angle, the change of spiral pipe spiral angle is the adjustment to technological parameter promptly, the time that can make high temperature metal melt flow through the spiral pipe changes, can make the flow velocity of fuse-element change, the shear strength that can make the fuse-element receive the spiral pipe changes etc. finally can reachd the best technological parameter of the semi-solid thick liquids preparation of different materials through the experiment.
(4) The heating pipe is arranged in the pipe wall of the spiral pipe, and the spiral pipe is preheated before the preparation of the slurry is started, so that the high-temperature metal melt flowing into the spiral pipe at the forefront is prevented from condensing due to the rapid reduction of the temperature; meanwhile, a cooling pipe is arranged in the spiral pipe, cooling liquid enters a spiral pipe flow channel in the wall of the spiral pipe from a liquid inlet nozzle and flows out from a liquid outlet nozzle, the liquid inlet nozzle is arranged at the lower end of the spiral pipe, the liquid outlet nozzle is arranged at the upper end of the spiral pipe, so that the flowing direction of the cooling liquid in the spiral pipe is opposite to the flowing direction of the high-temperature metal melt, and the flowing direction of the cooling liquid is opposite to the flowing direction of the high-temperature metal melt, so that the low end temperature and the high end temperature of the spiral pipe can be effectively ensured to be relatively low, the temperature of the spiral pipe is relatively high, the temperature of the spiral pipe is consistent with the flowing temperature of the melt and the process requirements in the slurry preparation process, because the heat of the high-temperature metal melt is absorbed by the cooling liquid, the temperature of the melt is properly reduced in the process of flowing from top to bottom in the spiral pipe, the, the temperature of the cooling liquid rises rapidly, and when the cooling liquid reaches the lower end of the spiral pipe, the temperature of the cooling liquid is possibly higher than that of the metal melt, so that the semi-solid slurry is not formed, and the semi-solid process and the principle are contrary.
(5) The utility model discloses set up spiral injection subassembly, in the semisolid slurry that is prepared by the spiral pipe directly flowed into the spiral pipe, directly inject the mould in and take shape under the effect of screw rod, compare other semisolid processing technology, saved the process that semisolid slurry shifted the mould from the preparation facilities, shortened the cycle that the part takes shape, avoided the pollution that the slurry arouses by the transfer process, realized "make promptly" the metal semisolid processing mode of annotating promptly.
(6) The utility model discloses the dolly formula supporting platform that sets up, it is fixed traditional thinking to overturn smelting pot and thick liquids preparation facilities among the prior art, can let whole semi-solid processing device move on the guide rail, carries out injection molding in proper order to the mould that sets up between the guide rail, realizes full automated production, improves semi-solid processing's efficiency.
(7) The utility model discloses be provided with temperature sensor II, heating device, cooling device in the solenoid wall among the spiral injection subassembly, when the temperature was too high in the solenoid, cooling device opened, cooled down solenoid and the thick liquids in the solenoid; when the temperature in the spiral pipe is too low, the heating device is started to heat the spiral pipe, so that the injection temperature of the semi-solid slurry is ensured in the optimal process range.
By adopting the above technique, the utility model, can be under the low energy consumption condition continuous, high-efficient, clean carry out the thick liquids preparation of semi-solid state thick liquids to can carry out the full-automatic semi-solid processing production of "making promptly" to thick liquids.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic cross-sectional view of the spiral pipe of FIG. 1.
Fig. 3 is a partially enlarged schematic view of a portion a of fig. 1.
Fig. 4 is a partially enlarged schematic view of part B of fig. 3.
In the figure: 1 is a furnace component; 11 is an electric heating tube; 12 is a furnace cover; 13 is a temperature sensor I; 14 is a liquid level sensor; 15 is an air extraction valve; 16 is a furnace body; 17 is a slurry baffle; 18 is a push rod I; 19 is a driving cylinder; 2, a spiral pipe slurry preparation component; 21 is a spiral tube guide rod; 22 is a furnace body supporting pipe; 23 is a vacuum valve; 24 is a feed inlet control valve; 25 is a spiral tube; a liquid outlet nozzle 251; 252 is a liquid inlet nozzle; 253 is a spiral pipe flow passage; 254 is a cooling tube; 255 is a heating pipe; 26 is a discharge port control valve; 27 is a discharge conduit; 3 is a trolley type supporting platform; 31 is a top plate; 32 is a hydraulic cylinder; 33 is a support column; 34 is a push rod II; 35 is a moving plate; 36 is a bottom plate; 37 is a guide rail; 38 is a wheel; 4 is a spiral injection component; 41 is a servo drive motor; 42 is a spiral tube fixing plate; 43 is a screw; 44 is a coil; 45 is a heating device; 46 is a cooling device; 47 is a temperature sensor II; 48 is an injection nozzle; and 49 is a mold.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in attached drawings 1 and 2, the full-automatic mobile semi-solid processing platform mainly comprises a smelting furnace component 1, a spiral pipe slurry preparation component 2, a trolley type supporting platform 3 and a spiral injection component.
The smelting furnace component 1 mainly comprises a furnace body 16, a furnace cover 12, a slurry baffle 17 and a driving cylinder 19, wherein the furnace cover 12 is arranged at the top of the furnace body 16, a temperature sensor I13, a liquid level sensor 14 and an air extraction valve 15 are arranged on the furnace cover 12, the temperature sensor I13 can measure the temperature in the furnace body 16 in real time, the liquid level sensor 14 can measure the melt liquid level in the furnace body 16 in real time, the air extraction valve 15 is connected with an external vacuum extractor and can vacuumize the inner cavity of the furnace body 16, so that the inner cavity of the furnace body 16 is in a vacuum state in the melting process of metal, the high-temperature metal melt is protected from being oxidized by air, an electric heating pipe 11 is arranged inside the furnace body 16 and used for heating the furnace body 16, the slurry baffle 17 is arranged at the bottom of the furnace body 16, and the slurry baffle 17 is connected with the driving cylinder 19 fixed on.
The spiral tube slurry preparation component 2 mainly comprises a spiral tube 25, a spiral tube guide rod 21, a discharge guide pipe 27 and a furnace body support tube 22, wherein the furnace body support tube 22 is arranged above a top plate 31, a vacuum valve 23 is arranged on the wall of the furnace body support tube 22, the vacuum valve 23 can pump out air in the spiral tube 25 to enable the interior of the spiral tube 25 to be in a vacuum state, when the slurry preparation process is carried out, air does not exist in the spiral tube 25, high-temperature metal melt in the spiral tube 25 is effectively prevented from being oxidized, impurities in the air are attached to the melt in flowing, the cleanliness of slurry is effectively improved, air entrainment can be effectively avoided, the quality of the slurry is improved, air holes in the finally formed part are greatly reduced, a feed inlet control valve 24 is arranged at the joint of the furnace body support tube 22 and the top plate 31, and the bottom of the feed inlet control valve 24 is connected with the spiral tube 25, the spiral pipe 25 is spirally wound on the spiral pipe guide rod 21, the spiral pipe 25 is connected with the discharging guide pipe 27 at the upper surface of the moving plate 35, the discharging port control valve 26 is arranged at the joint of the spiral pipe 25 and the discharging guide pipe 27, the heating pipe 255 and the cooling pipe 254 are arranged inside the spiral pipe 25, and the heating pipe 255 can preheat the spiral pipe 25 before the preparation of the slurry is started, so that the slurry flowing into the spiral pipe 25 at the forefront is prevented from being condensed due to rapid temperature reduction; the cooling pipe 254 can take away the heat in the spiral pipe 25 and the flowing metal melt through the cooling liquid, a liquid outlet 251 is arranged at the upper end of the spiral pipe 25 close to the feeding port, a liquid outlet 252 is arranged at the lower end of the spiral pipe 25 close to the discharging port, the flowing direction of the cooling liquid in the spiral pipe 25 is opposite to the flowing direction of the high-temperature metal melt due to the arrangement, the flowing direction of the cooling liquid is opposite to the flowing direction of the high-temperature metal melt, the low end of the spiral pipe 25 can be effectively guaranteed to be relatively low in temperature, the high end of the spiral pipe is relatively high in temperature, the flowing temperature of the melt and the process requirement of the slurry preparation process are consistent, the temperature of the high-temperature metal melt is sucked away through the cooling liquid, the temperature of the melt in the process of flowing from top.
The trolley type supporting platform 4 mainly comprises a moving plate 35, a top plate 31, a bottom plate 36, hydraulic cylinders 32, supporting columns 33, wheels 38 and guide rails 37, wherein the bottom plate 36 is erected on the guide rails 37 through the wheels 38, the wheels 38 can enable the bottom plate 36 and the whole semi-solid processing device to move on the guide rails 37, molds arranged between the guide rails 37 are sequentially injected and formed, the supporting columns 33 are arranged on the bottom plate 36, the top of each supporting column 33 is provided with the top plate 31, the hydraulic cylinders 32 are fixed on the lower surface of the top plate 31, the hydraulic cylinders 32 are connected with the moving plate 35 through push rods II 34, the push rods II 34 can be driven by the hydraulic cylinders 32 to move up and down, so that the moving plate 35 moves up and down, the change of the helix angle of the helix tube 25 is finally realized, when the moving plate 35 moves down, the helix tube, therefore, the size of the spiral angle of the spiral pipe 25 is changed, the change of the spiral angle of the spiral pipe 25 is adjustment of technological parameters, the time length of the high-temperature metal melt flowing through the spiral pipe 25 is changed, the flowing speed of the melt is changed, the shearing strength of the melt on the spiral pipe 25 is changed, and the like, and finally the optimal technological parameters for preparing the semi-solid slurry of different materials can be obtained through experiments, the spiral pipe guide rod 21 is arranged on the moving plate 35, and in the compression and stretching processes of the spiral pipe 25, a cylindrical motion pair is formed by the spiral pipe guide rod and the round hole in the top plate 31, and the spiral pipe 25 and the whole operation device are guided.
The spiral injection assembly 4 mainly comprises a servo driving motor 41, a spiral tube fixing plate 42, a screw 43, a spiral tube 44 and a mold 49, wherein the spiral tube fixing plate 42 is installed on the moving plate 35, the servo driving motor 41 is arranged on the spiral tube fixing plate 42, the servo driving motor 41 can drive the screw 43 to rotate, the spiral tube 44 is arranged below the spiral tube fixing plate 42, the spiral tube 44 is communicated with the spiral tube 25 through a discharge conduit 27, the screw 43 is arranged inside the spiral tube 44, the top of the screw 43 is directly connected with the servo driving motor 41, a heating device 45 and a cooling device 46 are arranged in the wall of the spiral tube 44 respectively and can heat and cool the spiral tube, the spiral tube 44 is provided with a temperature sensor II 47 to realize real-time monitoring of the temperature of the spiral tube 44, an injection nozzle 48 is arranged at the lower end of the spiral tube 44, semi-solid slurry flowing into the spiral tube 44 from the discharge conduit 27 can be directly injected into the mold, and (5) forming the part.
The utility model discloses a concrete working process as follows.
Before the work starts, the push rod II 34 and the moving plate 35 can be driven by the driving cylinder 32 to move up and down to adjust the spiral angle of the spiral pipe 25, the feed inlet control valve 24 is opened, the channels in the spiral pipe 25 and the furnace body supporting pipe 22 are vacuumized by the external vacuumizing machine connected with the vacuum valve 23, then the spiral pipe 25 is preheated by the heating pipe 255, the spiral pipe 44 is preheated by the heating device 45, when the spiral pipe 25 and the spiral pipe 44 reach a certain temperature, the discharge outlet control valve 24 is opened, the driving cylinder 19 drives the slurry baffle 17 to move rightwards by the push rod I18, the discharge outlet at the bottom of the furnace body 16 is opened, high-temperature metal melt in the furnace body flows out from the furnace body, passes through the furnace body supporting pipe 22 and flows into the spiral pipe 25, the temperature of the spiral pipe 25 is rapidly raised, the cooling liquid control valve is opened, and cooling liquid enters the cooling pipe, the heat in the spiral pipe 25 and the high-temperature metal melt is taken away, the high-temperature metal melt moves downwards along the spiral pipe 25 under the action of gravity, and in the flowing process, because of the special shape of the spiral pipe 25, the flow channel of the metal melt is also spiral, so that the high-temperature metal melt continuously rolls and flows downwards along the spiral pipe 25, and is simultaneously sheared by the spiral pipe 25 under the action of higher-strength rolling and shearing, the cooling liquid in the cooling pipe 254 cools the spiral pipe 25 and the metal melt, fine dendritic crystals just formed in the metal melt are immediately crushed, fine and round semisolid slurry is finally formed, the slurry enters the spiral pipe 44 from the discharge pipe 27, the screw 43 continuously rotates under the drive of the servo drive motor 41, the slurry is injected into the die 49 through the injection nozzle 48 to form parts, and after the injection of a die 49 is completed, the trolley type supporting platform 3 moves to the next adjacent pair of moulds 49 along the guide rail 37, the injection process is repeated after the specified position is reached, and the injection is continuously circulated until the moulds on the production line are completely injected.
Claims (1)
1. A full-automatic mobile semi-solid processing platform is characterized by comprising a smelting furnace component, a spiral pipe slurry preparation component, a trolley type supporting platform and a spiral injection component;
the smelting furnace assembly comprises a furnace body, a furnace cover, a slurry baffle and a driving cylinder, wherein the furnace cover is arranged at the top of the furnace body, a temperature sensor I, a liquid level sensor and an air exhaust valve are arranged on the furnace cover, an electric heating pipe is arranged inside the furnace body, the slurry baffle is arranged at the bottom of the furnace body, and the slurry baffle is connected with the driving cylinder fixed on the outer wall of the furnace body through a push rod I;
the spiral pipe slurry preparation assembly comprises a spiral pipe, a spiral pipe guide rod, a discharge guide pipe and a furnace body support pipe, wherein the furnace body support pipe is arranged above a top plate, a vacuum valve is arranged on the pipe wall of the furnace body support pipe, a feed inlet control valve is arranged at the joint of the furnace body support pipe and the top plate, the bottom of the feed inlet control valve is connected with the spiral pipe, the spiral pipe is spirally wound on the spiral pipe guide rod, the spiral pipe is connected with the discharge guide pipe on the upper surface of a movable plate, a discharge outlet control valve is arranged at the joint of the spiral pipe and the discharge guide pipe, a heating pipe and a cooling pipe are arranged inside the spiral pipe;
the trolley type support plate comprises a movable plate, a top plate, a bottom plate, a hydraulic cylinder, support columns, wheels and guide rails, wherein the bottom plate is erected on the guide rails through the wheels, the bottom plate and devices on the bottom plate can move along the guide rails through the wheels, the support columns are arranged on the bottom plate, the top of each support column is provided with the top plate, the hydraulic cylinder is fixed on the lower surface of the top plate, the hydraulic cylinder is connected with the movable plate through a push rod II, a spiral pipe guide rod is arranged on the movable plate, and in the motion process of compression and stretching of the spiral pipe, the spiral pipe guide rod and a circular hole in the top plate;
the spiral injection assembly comprises a servo driving motor, a spiral tube fixing plate, a screw rod, a spiral tube and a mold, wherein the spiral tube fixing plate is installed on the movable plate, the servo driving motor is arranged above the spiral tube fixing plate, the spiral tube is arranged below the spiral tube fixing plate, the spiral tube is communicated with the spiral tube through a discharge guide pipe, the screw rod is arranged inside the spiral tube, the top of the screw rod is connected with a driving shaft of the servo driving motor, the servo driving motor can drive the screw rod to rotate, a temperature sensor II is arranged in the wall of the spiral tube, a heating device and a cooling device are arranged, an injection nozzle is arranged at the lower end of the spiral tube, semisolid slurry in the spiral tube is directly injected into.
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| CN202021054251.5U CN212371128U (en) | 2020-06-10 | 2020-06-10 | Full-automatic mobile semi-solid processing platform |
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| CN202021054251.5U CN212371128U (en) | 2020-06-10 | 2020-06-10 | Full-automatic mobile semi-solid processing platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030166A (en) * | 2021-03-12 | 2021-06-25 | 哈尔滨工业大学 | Measuring device for semi-solid rheological behavior of high-entropy alloy and using method thereof |
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2020
- 2020-06-10 CN CN202021054251.5U patent/CN212371128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030166A (en) * | 2021-03-12 | 2021-06-25 | 哈尔滨工业大学 | Measuring device for semi-solid rheological behavior of high-entropy alloy and using method thereof |
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