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高镁合金属于一种难变形的合金,其挤压时的流动速度为3—4米/分。生产高镁合金半成品时能提高生产率的一些有效的方法,诸如采用使模子结构过于复杂的液体润滑,未必得到良好的结果。采用固体润滑剂(厚度不同的АДО纯铝垫)能以很快的速度(7—10米/分)挤出优质AMг6、AMг61合金半成品。塑性大于被挤出金属的金属制润滑垫放在铸锭和模子之间(图1)。挤压时润滑垫首先变形。部分润滑垫挤压入模孔中,同时产生一定的反压力;部分垫的材料
High-magnesium alloy belongs to a hard-to-deformable alloy with a flow rate of 3-4 m / min during extrusion. Some efficient methods of increasing productivity when producing high-magnesium alloy semifinished products, such as using liquid lubrication that makes the mold structure too complicated, may not give good results. The use of solid lubricants (АДО pure aluminum pads of different thicknesses) enables the extrusion of premium quality AM г6, AM г61 alloy semifinished products at very fast speeds (7-10 m / min). A metal-made mat that is more plastic than the metal being extruded is placed between the ingot and the mold (Figure 1). Extruded when the first lubrication pad deformation. Part of the lubricating pad squeezed into the die hole, while producing a certain amount of back pressure; part of the pad material