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要获得机械性能良好和无缺陷的铝铸件,控制铝液在坩埚内的温度十分重要.许多厂采用电炉熔铝来控制炉温,保证质量;但也有很多厂仍用地坑坩埚炉熔炼,往往难于控制炉内温度,我厂在熔制铝合金13、铝合金2等时也有类似情况.经多次摸索,终于获得了一台比较理想的炉子,可以控制炉内温度,保证质量,取得很大效果.我厂改良铝熔炉主要由炉身、坩埚、炉栅、鼓风机等组成.熔化量80公斤/包左右,第一炉要2.5小时,自第二炉开始只需1.5小时,炉子实际温度最大达到1190~1210℃,铝液温度最大达到890~910℃.鼓风机转速2800转/分,风压135
To obtain good mechanical properties and defect-free aluminum castings, it is important to control the temperature of the molten aluminum in the crucible. Many plants use EAF to control the furnace temperature and ensure quality; however, there are many plants that are still difficult to smelt with pit-crucible furnaces Controlled furnace temperature, I plant in the melting of aluminum alloy 13, aluminum alloy 2, etc. have a similar situation.After many groping, and finally got an ideal stove, you can control the temperature inside the furnace, to ensure quality, made great Effect. Our factory improved aluminum furnace mainly by the shaft, crucible, grate, blower, etc. Melting capacity of 80 kg / bag, the first furnace to 2.5 hours, since the second furnace just 1.5 hours, the actual furnace temperature Reached 1190 ~ 1210 ℃, the maximum temperature of molten aluminum reached 890 ~ 910 ℃. Blower speed 2800 rev / min, wind pressure 135