WO2018082241A1 - New continuous casting system for amorphous master alloy ingot and usage method therefor - Google Patents
New continuous casting system for amorphous master alloy ingot and usage method therefor Download PDFInfo
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- WO2018082241A1 WO2018082241A1 PCT/CN2017/077329 CN2017077329W WO2018082241A1 WO 2018082241 A1 WO2018082241 A1 WO 2018082241A1 CN 2017077329 W CN2017077329 W CN 2017077329W WO 2018082241 A1 WO2018082241 A1 WO 2018082241A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
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- the present invention relates to a continuous casting system for metals, and more particularly to a continuous casting system capable of continuously casting a master alloy ingot of an amorphous alloy and a method of using the same.
- Amorphous alloy Like crystalline alloys, they are multi-component alloy systems, but unlike the periodic arrangement of atoms in crystalline alloys, in amorphous alloys, the arrangement of atoms does not have long-range order, only in a single There is a certain degree of short-range order near the atom. Due to the special microstructure characteristics of amorphous alloys, amorphous alloys have no defects such as grain boundaries, dislocations and twins of conventional crystalline materials, so they have many excellent properties, such as unique electromagnetic properties, mechanical properties, and high strength hardness. And high corrosion resistance. So far, the research of amorphous alloys (abbreviated as amorphous alloys) has become one of the most important research directions in the development of new metal materials.
- the preparation method of the amorphous alloy is similar to that of the conventional alloy, and the raw materials are smelted to form a master alloy ingot, and then other deep processing is performed.
- the process steps for preparing an amorphous mother alloy ingot in the prior art are as follows: first, the raw material of the amorphous alloy is melted into a melt, and then the melt is sent to a predetermined mold, and the amorphous mother in the mold is taken out after the mold is cooled. Alloy ingot, and then repeat the above steps to continue to produce amorphous alloy ingots; if you want to obtain amorphous alloy ingots of different sizes or shapes, you need to change the mold or continue to physically process the cutting and cutting of the amorphous mother alloy ingots.
- amorphous materials are different from ordinary steel materials, and amorphous materials are easily oxidized, which tends to cause oxidation of the surface of the amorphous mother alloy ingots when using continuous casting equipment or systems used in steelmaking.
- continuous casting systems developed for amorphous alloy materials such as the application number 200910011405.4
- the Chinese invention patent entitled "A Device and Method for Continuous Forming of Bulk Metallic Glass” provides a continuous casting system having two vacuum chambers having a pressure difference for continuous molding of bulk metallic glass.
- the system requires two vacuum chambers to be used, and from the viewpoint of vacuum control operation, the controllability is poor, the cost and the running cost are high, and it is not suitable for popularization.
- the present invention provides a continuous casting system of an amorphous alloy mother alloy ingot in a single vacuum chamber from the viewpoint of solving practical problems.
- the present invention adopts a continuous casting system in which the output direction of the amorphous mother alloy ingot is perpendicular, and the structural design can effectively prevent the outside air from entering the melting. Indoor, thereby avoiding defects such as surface cracks, segregation, and vibration of the amorphous mother alloy ingot due to oxidation.
- a novel amorphous mother alloy ingot continuous casting system including a melt device, a water cooled crystallizer, a drawbar and a traction device, wherein:
- the melt device is disposed in the vacuum chamber, and the outlet of the melt device is connected to the water-cooled crystallizer;
- the drawbar is disposed in the flow channel of the amorphous alloy melt, the drain end is connected to the outlet of the melt device, and the traction end is connected to the traction device; the flow path of the amorphous alloy melt is vertical;
- the water-cooled crystallizer is provided with a sealing portion, the medium in the sealing portion is in direct contact with the drawbar, and a sealing ring is arranged at the junction between the sealing portion and the drawbar.
- the principle of the amorphous mother alloy ingot continuous casting system is that the melting device heats the amorphous alloy raw material to form a melt in a molten state. After the continuous casting starts, the amorphous molten metal is led to the water-cooled crystallizer by the drawbar, and the formed amorphous mother alloy ingot is continuously produced by the traction device.
- the continuous casting system of the present invention by setting the flow path of the amorphous alloy solution to the vertical direction and the arrangement of the sealing portion on the water-cooled crystallizer, external air can be prevented from entering the melting chamber and the amorphous mother alloy ingot can be cooled in time. .
- the sealing portion achieves the purpose of sealing by filling a sealing medium, which may be a protective gas, a liquid or other medium that acts as a sealing.
- the height of the sealing portion is set to 100 to 1000 mm.
- the sealing portion includes an inflation section and a cooling section
- the inflation section is filled with a shielding gas such as argon gas, nitrogen gas, helium gas and other inert gas
- the cooling section is filled with a cooling liquid such as cooling water, alcohol, and cooling. Liquid cooling medium such as oil.
- the inflated section is above the cooling section.
- the height of the inflatable section is 50-500mm
- the height of the cooling section is 50-500mm
- the height of the inflation section is 50-150mm
- the height of the cooling section is 100-400mm.
- the sealing part is sealed by a combination of a gas-filled section and a cooling section to achieve an optimal sealing effect. Since the gas is less dense than the liquid, the inflated section is above the cooling section.
- the medium in the inflating section and the cooling section is directly in contact with the amorphous mother alloy, and the inflating section is provided with a protective gas valve for charging the gas and controlling the pressure in the inflating section, and the cooling section is provided with an inlet hole and a liquid outlet for the coolant The circulation of the flow.
- the protective gas in the gas-filled section is directly in contact with the initially cooled amorphous mother alloy ingot, so that the surface of the amorphous mother alloy ingot with residual temperature has no oxidizing medium and does not oxidize.
- the amorphous mother alloy ingot After the amorphous mother alloy ingot enters the cooling section, it is further cooled in contact with the cooling medium to facilitate subsequent processing steps (such as shaping, cutting, transportation, etc.).
- a sealing ring is arranged at the junction of the sealing portion and the drawbar, and a sliding seal is formed with the drawbar and the subsequently produced amorphous mother alloy ingot to ensure that the outside air does not enter the melting system.
- a liquid level observation window is also arranged at the junction between the inflation section and the cooling section for observing the height position of the coolant, so that the height of the inflation section and the cooling section can be controlled at any time, and appropriate process parameters can be adjusted.
- the sealing portion including the inflation section and the cooling section, is preferably made of a heat-resistant metal material such as a stainless steel material.
- the invention also provides a method for using the above-mentioned amorphous mother alloy ingot vertical continuous casting system, the method steps are as follows:
- Step one adding the amorphous alloy raw material into the melting device, vacuuming the vacuum chamber where the melting device is located, and heating the molten alloy raw material after the vacuum degree reaches the requirement;
- Step two the water-cooled crystallizer is turned on, so that the water-cooled crystallizer and the sealing section start working at the same time;
- Step 3 Starting the traction device, the traction rod moves vertically under the action of the traction device until it falls off, and the amorphous alloy melt flows to the water-cooled crystallizer under the traction action of the traction rod and the gravity, and solidifies, so as to follow the traction rod to be pulled. It is taken out and then continuously produced until the raw material in the melt device is exhausted.
- the amorphous mother alloy ingot continuous casting system of the present invention is a single vacuum chamber system, which has lower equipment cost, simpler operation and lower operating cost than the multi-vacuum chamber continuous casting system in the prior art, and is suitable for industrial use. Low-cost production needs.
- a vertical casting system different from the horizontal casting system of the prior art is adopted, and the sealing portion is provided through the structural design, thereby effectively preventing the outside air from entering the melting chamber and timely performing the amorphous mother alloy ingot.
- the temperature is lowered, and the surface oxidation of the amorphous mother alloy ingot due to contact with air and excessive temperature is avoided, thereby avoiding defects such as surface cracking, segregation, and vibration of the surface of the amorphous mother alloy ingot.
- FIG. 1 is a schematic view of an amorphous mother alloy ingot continuous casting system of the present invention
- Figure 2 is an enlarged schematic view of the broken line in Figure 1.
- the amorphous mother alloy ingot vertical continuous casting system in this embodiment is as shown in Fig. 1, and includes a melt device 2, a water-cooled crystallizer 4, and a drawbar 8 And traction device 9 .
- the melt device can be a melt device for amorphous alloy in the prior art, and the traction device uses a roller or other mechanical device that can realize traction.
- the melt device 2 is disposed inside the vacuum chamber 1, and the amorphous alloy casting process is vacuum casting or inert atmosphere casting, vacuum chamber 1
- the structure of the vacuum melting chamber for ordinary amorphous alloy casting can be used.
- the top or side of the vacuum chamber can be opened and closed to fill the amorphous smelting raw material, and the vacuum chamber is also provided with a valve device such as a vacuum valve, an inert gas valve and a safety valve.
- a valve device such as a vacuum valve, an inert gas valve and a safety valve.
- Auxiliary equipment commonly used in other vacuum melting chambers may also be provided, since the construction of the vacuum chamber is not the focus of the present invention and will not be described herein.
- the bottom of the melt device 2 is a melt outlet and is connected to the water-cooled crystallizer 4, and the flow of the amorphous alloy solution is vertical.
- Water-cooled crystallizer 4 There is a sealing portion which is composed of a gas-filling section 5 and a cooling section 6, and the gas-filling section 5 passes through a protective gas valve 501.
- the shielding gas is filled and the gas pressure in the gas-filling section is controlled, and the shielding gas in the gas-filling section uses argon gas.
- the coolant used in the cooling section 6 is tap water, which is accessed by the water inlet 601, and the water outlet 602 Outflow, keep circulation, water outlet 602 Horizontal position is higher than inlet 601.
- a cooling ring 603 is provided at the bottom end of the cooling section 6 at the bottom end of the drawbar.
- the height of the inflation section 5 is set to 150 mm, and the height of the cooling section 6 is set to 400 mm.
- the outer casing of the sealing portion is made of stainless steel.
- the upper end of the inflation section is tightly closed to the outlet of the water-cooled crystallizer, and the observation section of the inflation section and the cooling section is provided. It is used to observe the liquid level, monitor and adjust the height of the inflation section and the cooling section according to the change of the melting process.
- the melt device heats and melts the alloy raw material.
- the vacuum required for the melting of the amorphous mother alloy ingot is 10-10 -3 Pa, and the melting temperature is adjusted according to different amorphous alloy systems, generally higher than the liquidus temperature of the alloy raw material by 50-150 °C.
- the water-cooled crystallizer is turned on 4, and the cooling section is turned on 6
- the coolant starts to circulate, the continuous casting starts, and the traction device 9 is turned on.
- the drawbar 8 With the traction device 9, the drawbar 8 is taken out, and the amorphous melt 3 enters the water-cooled crystallizer under the traction of the drawbar 8. 4 Cooling and solidification molding. The formed amorphous and parent alloy enters the sealing section and is finally taken up by the pulling device 9 to continue to be produced until the amorphous alloy material in the melt device 2 is exhausted.
- FIG 2 is Figure 1 An enlarged view of the middle dashed line.
- amorphous master alloy 10 In the water-cooled crystallizer, due to the volume shrinkage, a gap will be formed with the side wall of the water-cooled crystallizer. If it is not sealed, the outside air will enter the melting chamber from the gap, and the oxygen and impurities in the air will immediately melt with the amorphous alloy. In combination with liquid, in addition to easily oxidizing the amorphous alloy, the presence of impurities increases the defect structure inside the alloy and reduces the quality of the amorphous mother alloy.
- the shrinkage amorphous mother alloy 10 After entering the water-cooled crystallizer, it enters the gas-filling section directly. 5, the gas-filling section 5 is filled with a protective gas, such as argon gas, helium gas, etc., which does not react with the amorphous alloy raw material, and the gas-filling section 5
- a protective gas such as argon gas, helium gas, etc.
- the overall continuous casting system is set as a vertical continuous casting system, and the same structure is set to a horizontal direction or application.
- the sealing effect as in the continuous casting system of the present invention cannot be achieved.
- the amorphous mother alloy enters the cooling section after exiting the gas-filled section 5 Further cooling, the amorphous mother alloy produced is moderate in temperature, and is convenient for subsequent processing steps such as shaping and cutting.
- the coolant used in the cooling section 6 can be cooling water or other liquid cooling medium with cooling effect.
- the amorphous mother alloy ingot continuous casting system used in this embodiment is a vacuum system, which has low equipment cost, simple operation, low operation and management cost, and is suitable for industrial low-cost production requirements. Benefiting from the design of the sealing structure in the invention, the air and impurities in the amorphous alloy melting chamber can be effectively avoided, and the amorphous mother alloy ingot produced has high quality, no defects such as cracks, segregation, and vibration of the blank.
- the amorphous mother alloy ingot vertical continuous casting system of the invention can be applied to zirconium-based amorphous alloy, magnesium-based amorphous alloy, nickel-based amorphous alloy, iron-based amorphous alloy, copper-based amorphous alloy, cobalt-based amorphous Continuous casting process of amorphous mother alloys of different systems such as alloys.
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Abstract
A continuous casting system for an amorphous master alloy ingot, comprising a material-melting device (2), a water cooling crystallizer (4), a traction rod (8) and a traction device (9), wherein the material-melting device is arranged inside a vacuum chamber (1), and an outlet of the material-melting device is connected to the water cooling crystallizer; and the traction rod is arranged in a channel for an amorphous alloy melt, with a flow guide end thereof being connected to the outlet of the material-melting device and a traction end thereof being connected to the traction device. The channel for the amorphous alloy melt is in a perpendicular direction; and the water cooling crystallizer is provided with a sealing portion, wherein a medium in the sealing portion is in direct contact with the traction rod, and a sealing ring (603) is arranged at the connection between the sealing portion and the traction rod. In the continuous casting system, the amorphous master alloy ingot output direction is the perpendicular direction; by means of the structural design, external air can be effectively prevented from entering a melting chamber, thus preventing defects, such as surface cracks, segregation knobs and throwing chatter marks, generated due to oxidization, of the amorphous master alloy ingot.
Description
技术领域 Technical field
本发明涉及一种金属的连续铸造系统，具体涉及一种可实现对非晶态合金的母合金铸锭进行连续铸造的连铸系统以及该系统的使用方法。
The present invention relates to a continuous casting system for metals, and more particularly to a continuous casting system capable of continuously casting a master alloy ingot of an amorphous alloy and a method of using the same.
背景技术 Background technique
非晶态合金（ Amorphous Alloy
）与晶态合金一样，都是多组元的合金体系，但是与晶态合金中原子的周期性排列不同，在非晶态合金中，原子的排列不具有长程有序的特点，仅在单个原子的附近具有一定程度的短程有序。由于非晶态合金的特殊微观结构特征，非晶态合金没有传统晶体材料的晶界、位错和孪晶等缺陷，因此具有许多优异的性能，如独特的电磁性能、机械性能、高强度硬度以及高耐腐蚀性能。迄今为止，非晶态合金（简称非晶合金）的研究已成为当前金属新材料研发的非常重要的研究方向之一。 Amorphous alloy
Like crystalline alloys, they are multi-component alloy systems, but unlike the periodic arrangement of atoms in crystalline alloys, in amorphous alloys, the arrangement of atoms does not have long-range order, only in a single There is a certain degree of short-range order near the atom. Due to the special microstructure characteristics of amorphous alloys, amorphous alloys have no defects such as grain boundaries, dislocations and twins of conventional crystalline materials, so they have many excellent properties, such as unique electromagnetic properties, mechanical properties, and high strength hardness. And high corrosion resistance. So far, the research of amorphous alloys (abbreviated as amorphous alloys) has become one of the most important research directions in the development of new metal materials.
非晶合金的制备方法与传统合金类似，都是将原料熔炼后制成母合金铸锭，然后再进行其他深加工。现有技术中制备非晶母合金铸锭的工艺步骤为：首先将非晶合金的原料熔炼成熔体，然后将熔体送至既定的模具中，待模具冷却后取出模具中的非晶母合金铸锭，然后重复上述步骤继续生产非晶合金锭；如果要得到不同尺寸或者形状的非晶合金锭，需要改换模具或者继续对初步得到的非晶母合金铸锭进行整形、切割等物理加工。在现有技术的非晶母合金铸锭制备过程中，需要耗费大量的人工进行模具的拆卸组装，导致生产效率低和生产时间长，尤其当需要采用不同的模具时，更增加了模具的费用，使得制造成本居高不下。为解决上述问题，许多研究人员考虑使用连铸的方式进行非晶母合金铸锭的制备，许多研究中，将用于炼钢的连铸系统应用于非晶母合金锭的连续成型工艺中，然而非晶材料不同于普通钢铁材料，非晶材料易氧化，在使用炼钢所使用的连铸设备或系统时容易导致非晶母合金锭表面发生氧化。也有针对非晶合金材料开发的连铸系统，如申请号为
200910011405.4
名为《一种块体金属玻璃连续成型的装置和方法》的中国发明专利中提供了一种具有两个存在气压差的真空室的连铸系统，用于实现大块金属玻璃的连续成型。上述方案虽然可实现避免非晶母合金锭表面发生氧化，然而系统需要两间真空室才能使用，而且从真空控制运行上来讲，其可控制性差，造价及运行成本都高，不宜推广使用。
The preparation method of the amorphous alloy is similar to that of the conventional alloy, and the raw materials are smelted to form a master alloy ingot, and then other deep processing is performed. The process steps for preparing an amorphous mother alloy ingot in the prior art are as follows: first, the raw material of the amorphous alloy is melted into a melt, and then the melt is sent to a predetermined mold, and the amorphous mother in the mold is taken out after the mold is cooled. Alloy ingot, and then repeat the above steps to continue to produce amorphous alloy ingots; if you want to obtain amorphous alloy ingots of different sizes or shapes, you need to change the mold or continue to physically process the cutting and cutting of the amorphous mother alloy ingots. . In the preparation process of the prior art amorphous mother alloy ingot, a large amount of manual disassembly and assembly of the mold is required, resulting in low production efficiency and long production time, especially when different molds are required, and the cost of the mold is increased. , making manufacturing costs remain high. In order to solve the above problems, many researchers have considered the use of continuous casting to prepare amorphous mother alloy ingots. In many studies, the continuous casting system for steelmaking is applied to the continuous molding process of amorphous mother alloy ingots. However, amorphous materials are different from ordinary steel materials, and amorphous materials are easily oxidized, which tends to cause oxidation of the surface of the amorphous mother alloy ingots when using continuous casting equipment or systems used in steelmaking. There are also continuous casting systems developed for amorphous alloy materials, such as the application number
200910011405.4
The Chinese invention patent entitled "A Device and Method for Continuous Forming of Bulk Metallic Glass" provides a continuous casting system having two vacuum chambers having a pressure difference for continuous molding of bulk metallic glass. Although the above scheme can avoid oxidation of the surface of the amorphous mother alloy ingot, the system requires two vacuum chambers to be used, and from the viewpoint of vacuum control operation, the controllability is poor, the cost and the running cost are high, and it is not suitable for popularization.
发明内容 Summary of the invention
本发明从解决实际问题出发，提供了一种单真空室的非晶合金母合金锭的连铸系统。与现有技术中常见的卧式铸造系统不同，本发明中采用的是一种非晶母合金锭产出方向为垂直方向的连铸系统，通过结构上的设计，可有效避免外部空气进入熔炼室内，从而避免非晶母合金锭由于被氧化产生表面裂纹、偏析瘤、拉坯振痕等缺陷。
The present invention provides a continuous casting system of an amorphous alloy mother alloy ingot in a single vacuum chamber from the viewpoint of solving practical problems. Different from the horizontal casting system which is common in the prior art, the present invention adopts a continuous casting system in which the output direction of the amorphous mother alloy ingot is perpendicular, and the structural design can effectively prevent the outside air from entering the melting. Indoor, thereby avoiding defects such as surface cracks, segregation, and vibration of the amorphous mother alloy ingot due to oxidation.
本发明提出的技术问题通过以下技术方案予以实现： The technical problem proposed by the present invention is achieved by the following technical solutions:
提供一种新型非晶母合金锭连铸系统，包括熔料装置、水冷结晶器、牵引杆和牵引装置，其中： A novel amorphous mother alloy ingot continuous casting system is provided, including a melt device, a water cooled crystallizer, a drawbar and a traction device, wherein:
熔料装置设于真空室内，熔料装置的出口与水冷结晶器相连； The melt device is disposed in the vacuum chamber, and the outlet of the melt device is connected to the water-cooled crystallizer;
牵引杆设于非晶合金熔液的流道中，其引流端与熔料装置的出口相连，牵引端与牵引设备相连；所述非晶合金熔液的流道为垂直方向；
The drawbar is disposed in the flow channel of the amorphous alloy melt, the drain end is connected to the outlet of the melt device, and the traction end is connected to the traction device; the flow path of the amorphous alloy melt is vertical;
水冷结晶器上设有密封部，密封部内介质与牵引杆直接接触，密封部与牵引杆相接处设有密封圈。 The water-cooled crystallizer is provided with a sealing portion, the medium in the sealing portion is in direct contact with the drawbar, and a sealing ring is arranged at the junction between the sealing portion and the drawbar.
本发明中提供的非晶母合金锭连铸系统的原理为：熔料装置加热非晶合金原料，使之形成熔融态的熔液。连铸开始后，非晶熔液在牵引杆带动下，引至水冷结晶器中冷却成型，成型后的非晶母合金锭在牵引装置的带动下连续产出。在本发明的连铸系统中，通过将非晶合金溶液的流道设为垂直方向以及水冷结晶器上密封部的设置，来避免外部空气进入熔炼室内同时能够及时对非晶母合金锭进行降温。所述密封部通过填充密封介质达到密封的目的，密封介质可为保护气体、液体或者其他起到密封作用的介质。
The principle of the amorphous mother alloy ingot continuous casting system provided by the present invention is that the melting device heats the amorphous alloy raw material to form a melt in a molten state. After the continuous casting starts, the amorphous molten metal is led to the water-cooled crystallizer by the drawbar, and the formed amorphous mother alloy ingot is continuously produced by the traction device. In the continuous casting system of the present invention, by setting the flow path of the amorphous alloy solution to the vertical direction and the arrangement of the sealing portion on the water-cooled crystallizer, external air can be prevented from entering the melting chamber and the amorphous mother alloy ingot can be cooled in time. . The sealing portion achieves the purpose of sealing by filling a sealing medium, which may be a protective gas, a liquid or other medium that acts as a sealing.
进一步地，以便于实际操作，所述密封部高度设为 100-1000mm 。 Further, for practical operation, the height of the sealing portion is set to 100 to 1000 mm.
进一步地，所述密封部包括充气段与冷却段，充气段内充入保护气体，如氩气、氮气、氦气以及其他惰性气体；冷却段内充入冷却液，如冷却水、酒精、冷却油等液态冷却介质。充气段位于冷却段上方。充气段高度为
50-500mm ，冷却段高度为 50-500mm ，进一步优选，充气段高度为 50-150mm 、冷却段高度为 100-400mm 。
Further, the sealing portion includes an inflation section and a cooling section, and the inflation section is filled with a shielding gas such as argon gas, nitrogen gas, helium gas and other inert gas; and the cooling section is filled with a cooling liquid such as cooling water, alcohol, and cooling. Liquid cooling medium such as oil. The inflated section is above the cooling section. The height of the inflatable section is
50-500mm, the height of the cooling section is 50-500mm, further preferably, the height of the inflation section is 50-150mm, and the height of the cooling section is 100-400mm.
密封部采用充气段与冷却段相结合的方式进行密封，能够达到最佳的密封效果。由于气体比液体密度小，所以充气段位于冷却段上方。充气段与冷却段内介质直接与非晶母合金相接触，充气段设有保护气体阀用于充入气体以及控制充气段内压力，冷却段设有进液孔及出液孔用于冷却液的循环流动。充气段内保护气体直接与初步冷却成型的非晶母合金锭接触，使还带有余温的非晶母合金锭表面无氧化介质，不发生氧化。非晶母合金锭进入冷却段后，在与冷却介质的接触中进一步降温，便于后续的加工步骤（如整形、切割、运输等）。密封部与牵引杆相接处设有密封圈，与牵引杆以及后续产出的非晶母合金锭形成滑动密封，保证外部空气不会进入熔炼系统中。
The sealing part is sealed by a combination of a gas-filled section and a cooling section to achieve an optimal sealing effect. Since the gas is less dense than the liquid, the inflated section is above the cooling section. The medium in the inflating section and the cooling section is directly in contact with the amorphous mother alloy, and the inflating section is provided with a protective gas valve for charging the gas and controlling the pressure in the inflating section, and the cooling section is provided with an inlet hole and a liquid outlet for the coolant The circulation of the flow. The protective gas in the gas-filled section is directly in contact with the initially cooled amorphous mother alloy ingot, so that the surface of the amorphous mother alloy ingot with residual temperature has no oxidizing medium and does not oxidize. After the amorphous mother alloy ingot enters the cooling section, it is further cooled in contact with the cooling medium to facilitate subsequent processing steps (such as shaping, cutting, transportation, etc.). A sealing ring is arranged at the junction of the sealing portion and the drawbar, and a sliding seal is formed with the drawbar and the subsequently produced amorphous mother alloy ingot to ensure that the outside air does not enter the melting system.
充气段与冷却段相接处还设有液位观察窗，用于观察冷却液的高度位置，便于随时控制充气段和冷却段的高度，调整合适的工艺参数。
A liquid level observation window is also arranged at the junction between the inflation section and the cooling section for observing the height position of the coolant, so that the height of the inflation section and the cooling section can be controlled at any time, and appropriate process parameters can be adjusted.
由于非晶母合金锭从水冷结晶器中凝固产出时还带有余温，上述密封部，包括充气段及冷却段外壳宜采用耐热的金属材料制成，如不锈钢材料。
Since the amorphous mother alloy ingot is cohesed from the water-cooled crystallizer, the sealing portion, including the inflation section and the cooling section, is preferably made of a heat-resistant metal material such as a stainless steel material.
本发明还提供一种利用上述非晶母合金锭垂直连铸系统的使用方法，方法步骤如下： The invention also provides a method for using the above-mentioned amorphous mother alloy ingot vertical continuous casting system, the method steps are as follows:
步骤一，将非晶合金原料加入熔料装置中，对熔料装置所在的真空室抽真空，真空度达到要求后熔料装置加热熔化合金原料；
Step one, adding the amorphous alloy raw material into the melting device, vacuuming the vacuum chamber where the melting device is located, and heating the molten alloy raw material after the vacuum degree reaches the requirement;
步骤二，开启水冷结晶器，使水冷结晶器与密封段同时开始工作； Step two, the water-cooled crystallizer is turned on, so that the water-cooled crystallizer and the sealing section start working at the same time;
步骤三，启动牵引装置，牵引杆在牵引装置的作用下垂直运动直至脱落，非晶合金熔液在牵引杆的牵引作用及重力作用下流至水冷结晶器，凝固成形，从而跟随牵引杆被牵引装置引出，继而连续产出直至熔料装置内原料消耗殆尽。
Step 3: Starting the traction device, the traction rod moves vertically under the action of the traction device until it falls off, and the amorphous alloy melt flows to the water-cooled crystallizer under the traction action of the traction rod and the gravity, and solidifies, so as to follow the traction rod to be pulled. It is taken out and then continuously produced until the raw material in the melt device is exhausted.
本发明具有如下有益效果： The invention has the following beneficial effects:
1
、本发明中的非晶母合金锭连铸系统为单真空室系统，与现有技术中多真空室连铸系统相比，设备成本更低、操作更为简便、运行成本更低，适合工业低成本的生产需求。 1
The amorphous mother alloy ingot continuous casting system of the present invention is a single vacuum chamber system, which has lower equipment cost, simpler operation and lower operating cost than the multi-vacuum chamber continuous casting system in the prior art, and is suitable for industrial use. Low-cost production needs.
2
、本发明中采用与现有技术中卧式铸造系统不同的垂直铸造系统，通过结构上的设计，设有密封部，即可有效避免外部空气进入熔炼室内又能够及时对非晶母合金锭进行降温，避免了非晶母合金锭由于与空气接触及温度过高发生表面氧化，从而避免非晶母合金锭表面氧化所产生表面裂纹、偏析瘤、拉坯振痕等缺陷。 2
In the present invention, a vertical casting system different from the horizontal casting system of the prior art is adopted, and the sealing portion is provided through the structural design, thereby effectively preventing the outside air from entering the melting chamber and timely performing the amorphous mother alloy ingot. The temperature is lowered, and the surface oxidation of the amorphous mother alloy ingot due to contact with air and excessive temperature is avoided, thereby avoiding defects such as surface cracking, segregation, and vibration of the surface of the amorphous mother alloy ingot.
附图说明 DRAWINGS
图 1 为本发明中非晶母合金锭连铸系统的示意图； 1 is a schematic view of an amorphous mother alloy ingot continuous casting system of the present invention;
图 2 为附图 1 中虚线处的放大示意图。 Figure 2 is an enlarged schematic view of the broken line in Figure 1.
具体实施方式 detailed description
下面结合附图和实施例对本发明进行详细的说明。 The invention will now be described in detail in conjunction with the drawings and embodiments.
本实施例中的非晶母合金锭垂直连铸系统如附图 1 所示，包括熔料装置 2 、水冷结晶器 4 、牵引杆 8
和牵引装置 9 。熔料装置采用现有技术中非晶合金用熔料装置即可，牵引装置使用辊轮或者其他可实现牵引作用的机械装置。 The amorphous mother alloy ingot vertical continuous casting system in this embodiment is as shown in Fig. 1, and includes a melt device 2, a water-cooled crystallizer 4, and a drawbar 8
And traction device 9 . The melt device can be a melt device for amorphous alloy in the prior art, and the traction device uses a roller or other mechanical device that can realize traction.
熔料装置 2 设于真空室 1 内部，非晶合金铸造过程为真空铸造或者惰性气氛铸造，真空室 1
可采用普通非晶合金铸造用真空熔炼室的构造，如真空室顶部或者侧边部可开合以便装填非晶熔炼原料，真空室上还设有真空阀、惰性气体阀、安全阀等阀门装置，还可设有其他真空熔炼室常用的辅助设备，因真空室的构造不是本发明的重点，在此不加赘述。 The melt device 2 is disposed inside the vacuum chamber 1, and the amorphous alloy casting process is vacuum casting or inert atmosphere casting, vacuum chamber 1
The structure of the vacuum melting chamber for ordinary amorphous alloy casting can be used. For example, the top or side of the vacuum chamber can be opened and closed to fill the amorphous smelting raw material, and the vacuum chamber is also provided with a valve device such as a vacuum valve, an inert gas valve and a safety valve. Auxiliary equipment commonly used in other vacuum melting chambers may also be provided, since the construction of the vacuum chamber is not the focus of the present invention and will not be described herein.
熔料装置 2 底部设为熔液出口，且与水冷结晶器 4 相连接，非晶合金溶液的流动为垂直方向。水冷结晶器 4
之下设有密封部，密封部由充气段 5 和冷却段 6 组成，充气段 5 通过保护气体阀 501
充入保护气体并控制充气段中气体压力，充气段中的保护气体使用氩气。冷却段 6 中使用的冷却液为自来水，由进水口 601 进入，由出水口 602
流出，保持循环，出水口 602 水平位置比进水口 601 高。冷却段 6 底端与牵引杆相连处设有密封圈 603 。 The bottom of the melt device 2 is a melt outlet and is connected to the water-cooled crystallizer 4, and the flow of the amorphous alloy solution is vertical. Water-cooled crystallizer 4
There is a sealing portion which is composed of a gas-filling section 5 and a cooling section 6, and the gas-filling section 5 passes through a protective gas valve 501.
The shielding gas is filled and the gas pressure in the gas-filling section is controlled, and the shielding gas in the gas-filling section uses argon gas. The coolant used in the cooling section 6 is tap water, which is accessed by the water inlet 601, and the water outlet 602
Outflow, keep circulation, water outlet 602 Horizontal position is higher than inlet 601. A cooling ring 603 is provided at the bottom end of the cooling section 6 at the bottom end of the drawbar.
实施例中，充气段 5 高度设为 150mm ，冷却段 6 高度设为 400mm
，密封部的外壳采用不锈钢材料制成。充气段上端紧闭贴合水冷结晶器的出口，充气段和冷却段接合处设有观察窗 7
，用于观察液面高度，随时监控并根据熔炼过程的变化对充气段和冷却段的高度进行调整。 In the embodiment, the height of the inflation section 5 is set to 150 mm, and the height of the cooling section 6 is set to 400 mm.
The outer casing of the sealing portion is made of stainless steel. The upper end of the inflation section is tightly closed to the outlet of the water-cooled crystallizer, and the observation section of the inflation section and the cooling section is provided.
It is used to observe the liquid level, monitor and adjust the height of the inflation section and the cooling section according to the change of the melting process.
使用实施例中的非晶母合金锭垂直连铸系统进行连铸的过程步骤如下： The process steps for continuous casting using the amorphous mother alloy ingot vertical continuous casting system in the examples are as follows:
1 、将非晶合金原料加入熔料装 2 中，锁紧真空室 1 ，然后对真空室 1
抽真空，真空度达到要求后熔料装置加热熔化合金原料。一般来说，非晶母合金锭熔炼所需真空度为 10-10-3Pa
，熔炼温度根据不同非晶合金体系进行调整，一般高于合金原料液相线温度 50-150 ℃。1. Add the amorphous alloy raw material to the melt package 2, lock the vacuum chamber 1, and then evacuate the vacuum chamber 1. After the vacuum reaches the requirement, the melt device heats and melts the alloy raw material. Generally, the vacuum required for the melting of the amorphous mother alloy ingot is 10-10 -3 Pa, and the melting temperature is adjusted according to different amorphous alloy systems, generally higher than the liquidus temperature of the alloy raw material by 50-150 °C.
2 、当合金原料熔炼成为熔液以后，开启水冷结晶器 4 ，开启冷却段 6
使冷却液开始循环流动，连铸开始，开启牵引装置 9 。 2. After the alloy material is melted into a melt, the water-cooled crystallizer is turned on 4, and the cooling section is turned on 6
The coolant starts to circulate, the continuous casting starts, and the traction device 9 is turned on.
3 、在牵引装置 9 的带动下，牵引杆 8 被引出，非晶熔液 3 在牵引杆 8 的牵引作用下进入水冷结晶器
4 冷却、凝固成型。成型后的非晶和母合金进入密封段，最后由牵引装置 9 引出，从而持续产出直至熔料装置 2 内非晶合金原料消耗殆尽。 3. With the traction device 9, the drawbar 8 is taken out, and the amorphous melt 3 enters the water-cooled crystallizer under the traction of the drawbar 8.
4 Cooling and solidification molding. The formed amorphous and parent alloy enters the sealing section and is finally taken up by the pulling device 9 to continue to be produced until the amorphous alloy material in the melt device 2 is exhausted.
附图 2 为 附图 1
中虚线处的放大示意图。非晶合金熔液从熔炼装置中进入水冷结晶器冷却后由于热胀冷缩，体积会减小。如附图 2 中所示，非晶母合金 10
在水冷结晶器中由于体积收缩，会与水冷结晶器侧壁产生空隙，若不加以密封，外部空气就会由该空隙进入熔炼室中，空气中的氧气和杂质就会立即与非晶合金熔液结合，除了易使非晶合金氧化，杂质的存在还会增加合金内部的缺陷结构，降低非晶母合金的品质。当使用本实施例中提供的连铸系统时，收缩后的非晶母合金
10 从水冷结晶器中出来以后直接进入充气段 5 ，充气段 5 中充入的是保护气体，如氩气、氦气等不与非晶合金原料发生反应的惰性气体，同时充气段 5
下方的冷却段 6 以及设在密封段出口处的密封圈 603
进一步保证了密封效果，使外部空气无法进入。在本发明中，考虑到保护气体比冷却液体质量轻，而冷却液体可通过设置密封圈形成滑动密封结构，故而将整体连铸系统设为垂直连铸系统，同样的结构设为水平方向或应用于卧式铸造系统中时，由于气液密度差异大，气液分层，易形成环境和保护气之间的对流，不能够达到如本发明中连铸系统一般的密封效果。 Figure 2 is Figure 1
An enlarged view of the middle dashed line. After the amorphous alloy melt enters the water-cooled crystallizer from the smelting device, the volume is reduced due to thermal expansion and contraction. As shown in Figure 2, amorphous master alloy 10
In the water-cooled crystallizer, due to the volume shrinkage, a gap will be formed with the side wall of the water-cooled crystallizer. If it is not sealed, the outside air will enter the melting chamber from the gap, and the oxygen and impurities in the air will immediately melt with the amorphous alloy. In combination with liquid, in addition to easily oxidizing the amorphous alloy, the presence of impurities increases the defect structure inside the alloy and reduces the quality of the amorphous mother alloy. When the continuous casting system provided in this embodiment is used, the shrinkage amorphous mother alloy
10 After entering the water-cooled crystallizer, it enters the gas-filling section directly. 5, the gas-filling section 5 is filled with a protective gas, such as argon gas, helium gas, etc., which does not react with the amorphous alloy raw material, and the gas-filling section 5
The lower cooling section 6 and the sealing ring located at the outlet of the sealing section 603
The sealing effect is further ensured, making it impossible for outside air to enter. In the present invention, considering that the shielding gas is lighter in mass than the cooling liquid, and the cooling liquid can form a sliding sealing structure by providing a sealing ring, the overall continuous casting system is set as a vertical continuous casting system, and the same structure is set to a horizontal direction or application. In the horizontal casting system, due to the large difference in gas-liquid density, gas-liquid stratification, easy formation of convection between the environment and the shielding gas, the sealing effect as in the continuous casting system of the present invention cannot be achieved.
非晶母合金从充气段 5 出来后进入冷却段 6
，进一步冷却，使产出的非晶母合金温度适中，便于后续的整形、切割等加工步骤。冷却段 6 中使用的冷却液可为冷却水或者其他有冷却降温效果的液态冷却介质。 The amorphous mother alloy enters the cooling section after exiting the gas-filled section 5
Further cooling, the amorphous mother alloy produced is moderate in temperature, and is convenient for subsequent processing steps such as shaping and cutting. The coolant used in the cooling section 6 can be cooling water or other liquid cooling medium with cooling effect.
本实施例中使用的非晶母合金锭连铸系统为但真空系统，设备成本低、操作简便、运行和管理的成本都非常低，适合工业低成本的生产需求。受益于本发明中的密封结构设计，可有效避免非晶合金熔炼室中进入空气和杂质，使产出的非晶母合金锭品质高、没有裂纹、偏析瘤、拉坯振痕等缺陷。
The amorphous mother alloy ingot continuous casting system used in this embodiment is a vacuum system, which has low equipment cost, simple operation, low operation and management cost, and is suitable for industrial low-cost production requirements. Benefiting from the design of the sealing structure in the invention, the air and impurities in the amorphous alloy melting chamber can be effectively avoided, and the amorphous mother alloy ingot produced has high quality, no defects such as cracks, segregation, and vibration of the blank.
本发明中的非晶母合金锭垂直连铸系统可适用于锆基非晶合金、镁基非晶合金、镍基非晶合金、铁基非晶合金、铜基非晶合金、钴基非晶合金等不同体系的非晶母合金连铸过程。
The amorphous mother alloy ingot vertical continuous casting system of the invention can be applied to zirconium-based amorphous alloy, magnesium-based amorphous alloy, nickel-based amorphous alloy, iron-based amorphous alloy, copper-based amorphous alloy, cobalt-based amorphous Continuous casting process of amorphous mother alloys of different systems such as alloys.
最后需要说明的是，以上实施例仅用以说明本发明实施例的技术方案而非对其进行限制。尽管参照较佳实施例对本发明实施例进行了详细的说明，本领域的普通技术人员应当理解依然可以对本发明实施例的技术方案进行修改或者等同替换，而这些修改或者等同替换亦不能使修改后的技术方案脱离本发明实施例技术方案的范围。
It should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention and are not limited thereto. Although the embodiments of the present invention have been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the present invention may be modified or substituted, and the modifications or equivalents may not be modified. The technical solution is out of the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
- 一种新型非晶母合金锭连铸系统，包括熔料装置、水冷结晶器、牵引杆和牵引装置，其特征在于：A novel amorphous mother alloy ingot continuous casting system, comprising a melt device, a water-cooled crystallizer, a drawbar and a traction device, characterized in that:熔料装置设于真空室内，熔料装置的出口与水冷结晶器相连；The melt device is disposed in the vacuum chamber, and the outlet of the melt device is connected to the water-cooled crystallizer;牵引杆设于非晶合金熔液的流道中，其引流端与熔料装置的出口相连，牵引端与牵引设备相连；所述非晶合金熔液的流道为垂直方向；The drawbar is disposed in the flow channel of the amorphous alloy melt, the drain end is connected to the outlet of the melt device, and the traction end is connected to the traction device; the flow path of the amorphous alloy melt is vertical;水冷结晶器上设有密封部，密封部内介质与牵引杆直接接触，密封部与牵引杆相接处设有密封圈。The water-cooled crystallizer is provided with a sealing portion, the medium in the sealing portion is in direct contact with the drawbar, and a sealing ring is arranged at the junction between the sealing portion and the drawbar.
- 如权利要求 1 所述非晶母合金锭连铸系统，其特征在于：所述密封部高度为 100-1000mm 。The amorphous mother alloy ingot continuous casting system according to claim 1, wherein said sealing portion has a height of 100-1000 mm .
- 如权利要求 1 所述非晶母合金锭连铸系统，其特征在于：所述密封部包括充气段与冷却段，充气段内充入保护气体，冷却段内充入冷却液，充气段位于冷却段上方。Claims 1 The amorphous mother alloy ingot continuous casting system is characterized in that: the sealing portion comprises an inflation section and a cooling section, the inflation section is filled with a shielding gas, the cooling section is filled with a cooling liquid, and the inflation section is located above the cooling section.
- 如权利要求 2 所述非晶母合金锭连铸系统，其特征在于：所述充气段高度为 50-500mm ，冷却段高度为 50-500mm 。The amorphous mother alloy ingot continuous casting system according to claim 2, wherein the height of the inflation section is 50-500 mm, and the height of the cooling section is 50-500mm.
- 如权利要求 3 所述非晶母合金锭连铸系统，其特征在于：所述充气段高度为 50-150mm ，冷却段高度为 100-400mm 。The amorphous mother alloy ingot continuous casting system according to claim 3, wherein the height of the inflation section is 50-150 mm, and the height of the cooling section is 100-400mm.
- 如权利要求 3 所述非晶母合金锭连铸系统，其特征在于：所述充气段设有保护气体阀。The amorphous mother alloy ingot continuous casting system according to claim 3, wherein said inflation section is provided with a protective gas valve.
- 如权利要求 3 所述非晶母合金锭连铸系统，其特征在于：所述冷却段设有进液孔及出液孔。The amorphous mother alloy ingot continuous casting system according to claim 3, wherein the cooling section is provided with a liquid inlet hole and a liquid outlet hole.
- 如权利要求 3 所述非晶母合金锭连铸系统，其特征在于：所述充气段与冷却段相接处设有液位观察窗。Claims 3 The amorphous mother alloy ingot continuous casting system is characterized in that: a liquid level observation window is arranged at a position where the inflation section and the cooling section meet.
- 如权利要求 1 所述非晶母合金锭连铸系统，其特征在于：所述密封部外壳由金属材料制成。The amorphous mother alloy ingot continuous casting system according to claim 1, wherein said seal portion outer casing is made of a metal material.
- 一种如权利要求 1-9 任一所述非晶母合金锭垂铸系统的使用方法，其特征在于包括如下步骤：A method of using an amorphous mother alloy ingot casting system according to any of claims 1-9, comprising the steps of:步骤一，将非晶合金原料加入熔料装置中，对熔料装置所在的真空室抽真空，真空度达到要求后熔料装置加热熔化合金原料；Step one, adding the amorphous alloy raw material into the melting device, vacuuming the vacuum chamber where the melting device is located, and heating the molten alloy raw material after the vacuum degree reaches the requirement;步骤二，开启水冷结晶器，使水冷结晶器与密封段同时开始工作；Step two, the water-cooled crystallizer is turned on, so that the water-cooled crystallizer and the sealing section start working at the same time;步骤三，启动牵引装置，牵引杆在牵引装置的作用下垂直运动直至脱落，非晶合金熔液在牵引杆的牵引作用及重力作用下流至水冷结晶器，凝固成形，从而跟随牵引杆被牵引装置引出，继而连续产出直至熔料装置内原料消耗殆尽。Step 3: Starting the traction device, the traction rod moves vertically under the action of the traction device until it falls off, and the amorphous alloy melt flows to the water-cooled crystallizer under the traction action of the traction rod and the gravity, and solidifies, so as to follow the traction rod to be pulled. It is taken out and then continuously produced until the raw material in the melt device is exhausted.
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