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铝卷生产厂家分享铝合金板在熔炼过程中的温度控制

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  铝合金型材如铝合金板在熔化过程中必须有足够高的温度,以确保金属元素如铝合金板完全熔化和溶解。加热温度过高,熔化速度加快,缩短了金属与炉气、炉衬有害相互作用的时间。生产实践表明,快速加热加快了炉料的熔化,缩短了熔化时间,有利于提高生产效率和质量。
  Aluminum alloy profiles such as aluminum alloy plates must have enough high temperature during melting to ensure that metal elements such as aluminum alloy plates are completely melted and dissolved. If the heating temperature is too high, the melting speed will be accelerated, which shortens the time of harmful interaction between metal, furnace gas and furnace lining. The production practice shows that rapid heating speeds up the melting of the furnace charge, shortens the melting time, and improves the production efficiency and quality.
  但另一方面,温度过高容易过热,尤其是在使用火焰反射炉加热时,枪体直接接触炉料,随着强烈的热量加入到熔融或半熔融状态的金属中,容易造成气体向人体熔化。同时,温度越高,金属与炉气、炉衬等的反应越快,会导致金属的损失和熔体质量的降低。过热不仅会吸取大量的气体,而且会使凝固后的钢锭晶粒结构变粗,增加了钢锭的裂纹倾向,影响合金的性能。因此,在熔炼过程中,应控制好熔炼温度,防止熔体过热。

铝卷生产厂家
  But on the other hand, it is easy to overheat when the temperature is too high, especially when the flame reflecting furnace is used for heating, the gun body directly contacts the furnace charge, and with the strong heat added to the molten or semi molten metal, it is easy to cause the gas to melt into the human body. At the same time, the higher the temperature is, the faster the metal reacts with furnace gas and lining, which will lead to the loss of metal and the decrease of melt quality. Overheating will not only absorb a lot of gas, but also make the solidified ingot grain structure coarser, increase the tendency of ingot crack, and affect the properties of the alloy. Therefore, in the melting process, the melting temperature should be well controlled to prevent the melt from overheating.
  但过低的熔点在生产实践中是没有意义的。因此,在实际生产中,不仅要防止熔体过热,还要加速熔体的熔化,缩短熔体的熔化时间。熔炼温度的控制非常重要。大多数工厂在高温下快速进料后采用快速熔炼,使处于半固态和半液态的金属在短时间内暴露在强炉气和火焰中,减少金属的氧化、燃烧损失,减少熔体的吸入。当炉料煅烧后出现一层液态金属时,为减少熔体局部过热,应适当降低熔体温度,并在熔炼过程中加强搅拌,以促进熔体的热传导。特别是要控制即将完全熔化的R电荷的熔化温度。由于金属或合金具有熔化潜热,所以当电荷全部熔化时,温度会升高。如果控制熔化温度过高,整个熔池中的金属将会过热。在生产实践中,熔体过热的原因主要是温度控制不当。
  But low melting point is meaningless in practice. Therefore, in actual production, it is not only necessary to prevent the melt from overheating, but also to accelerate the melting of the melt and shorten the melting time of the melt. The control of melting temperature is very important. Most factories adopt rapid smelting after fast feeding at high temperature, which makes the semi-solid and semi-liquid metal exposed to strong furnace gas and flame in a short time, reduces the oxidation and combustion loss of metal, and reduces the suction of melt. When a layer of liquid metal appears after the furnace charge is calcined, in order to reduce the local overheating of the melt, the melt temperature should be appropriately reduced, and the stirring should be strengthened in the smelting process to promote the heat transfer of the melt. In particular, it is necessary to control the melting temperature of the R charge which is about to melt completely. Because metal or alloy has latent heat of melting, the temperature will rise when all the charges melt. If the melting temperature is controlled too high, the metal in the whole molten pool will overheat. In production practice, the main reason for melt overheating is improper temperature control.
  实际熔化温度应根据铝板等合金元素的熔化温度进行理论选择。不同的合金有不同的熔点,即不同成分的合金,固体开始熔化的温度(称为固相温度)和完全熔化的温度(称为液相温度)也不同。在这两个温度范围内,金属都是半液态和半固态的。
  The actual melting temperature should be selected according to the melting temperature of alloy elements such as aluminum plate. Different alloys have different melting points, i.e. for alloys with different compositions, the temperature at which the solid starts to melt (called solid temperature) and the temperature at which the solid completely melts (called liquid temperature) are also different. In both temperature ranges, metals are semi-liquid and semi-solid.
  以上是铝卷生产厂家为大家分享的铝合金板在熔炼过程中的温度控制,想要了解更多内容,欢迎访问网站:
  The above is the temperature control of aluminum alloy plate in melting process shared by the aluminum coil manufacturer. For more information, please visit http://www.jndclyxgs.com

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