1 Newly opened charge. The general specification of magnesium alloy ingots is 4-12kg/spindle. Here, the AZ91D die-casting magnesium alloy material with 7kg per ingot is taken as an example to introduce the method of charging the new furnace. First, take 30 pieces of dried magnesium alloy ingots, which are cut in 1/3, 2/3 ratio, and other pieces are cut in 1/2 ratio. Clean up the foreign matter on the surface of the feed ingots, water, and magnesium. Clean the furnace crucible without rust, traces of oil, traces of water, and foreign matter. First, the bottom of the crucible should be leveled with the whole material, and discharged along the wall of the pot with 2/3 of the material. The small gap between material and material or between the material pot and the pot wall is filled with 1/2 material and 1/3 material, most importantly. It is to make the alloy material block neatly, reduce the gap, and make the alloy material completely contact with the furnace wall. This is to ensure the heat transfer effect, as shown in Figure 12-3. After loading and unloading, clean the foreign matter on the lid of the furnace and cover the furnace lid to clean the foreign material on the surface of the furnace to keep the surface of the furnace clean. 2 feeding during production. Preheat to 150-200°C to remove water and prevent splashing of magnesium. This is a hazard that must be worn when adding materials to avoid danger. Magnesium alloy ingots should be placed slowly when they are added, and they must not be put into the air. The general liquid height should be located 50-60mm away from the upper edge of the crucible. The amount to be fed should be determined according to the production cycle and the size of the casting. It cannot be fed too much at one time. Quartz Cuvettes,Cylindrical Quartz Cuvettes,Uv Cylindrical Cuvettes,Fused Optical Cells Yixing Jingke Optical Instruments Co.,Ltd. , https://www.jkgxcn.com
[Technology] Feeding of Magnesium Alloy Melting