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鋁卷生產廠家分享鋁合金板在熔煉過程中的溫度控制

來源:http://www.fuzore.com  發布時間:2019-12-03 14:39:33  

  鋁合金型材如鋁合金板在熔化過程中必須有足夠高的溫度,以確保金屬元素如鋁合金板完全熔化和溶解。加熱溫度過高,熔化速度加快,縮短了金屬與爐氣、爐襯有害相互作用的時間。生產實踐表明,快速加熱加快了爐料的熔化,縮短了熔化時間,有利于提高生產效率和質量。
  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,溫度過高容易過熱,尤其是在使用火焰反射爐加熱時,槍體直接接觸爐料,隨著強烈的熱量加入到熔融或半熔融狀態的金屬中,容易造成氣體向人體熔化。同時,溫度越高,金屬與爐氣、爐襯等的反應越快,會導致金屬的損失和熔體質量的降低。過熱不僅會吸收大量的氣體,而且會使凝固后的鋼錠晶粒結構變粗,增加了鋼錠的裂紋傾向,影響合金的性能。因此,在熔煉過程中,應控制好熔煉溫度,防止熔體過熱。

鋁卷生產廠家
  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.
  但過低的熔點在生產實踐中是沒有意義的。因此,在實際生產中,不僅要防止熔體過熱,還要加速熔體的熔化,縮短熔體的熔化時間。熔煉溫度的控制非常重要。大多數工廠在高溫下快速進料后采用快速熔煉,使處于半固態和半液態的金屬在短時間內暴露在強爐氣和火焰中,減少金屬的氧化、燃燒損失,減少熔體的吸入。當爐料煅燒后出現一層液態金屬時,為減少熔體局部過熱,應適當降低熔體溫度,并在熔煉過程中加強攪拌,以促進熔體的熱傳導。特別是要控制即將完全熔化的R電荷的熔化溫度。由于金屬或合金具有熔化潛熱,所以當電荷全部熔化時,溫度會升高。如果控制熔化溫度過高,整個熔池中的金屬將會過熱。在生產實踐中,熔體過熱的原因主要是溫度控制不當。
  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.
  實際熔化溫度應根據鋁板等合金元素的熔化溫度進行理論選擇。不同的合金有不同的熔點,即不同成分的合金,固體開始熔化的溫度(稱為固相溫度)和完全熔化的溫度(稱為液相溫度)也不同。在這兩個溫度范圍內,金屬都是半液態和半固態的。
  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.
  以上是鋁卷生產廠家為大家分享的鋁合金板在熔煉過程中的溫度控制,想要了解更多內容,歡迎訪問網站:http://www.fuzore.com
  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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