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一、选题随着国民经济的发展,铝合金建筑型材得到了愈来愈广泛的应用。用它组装的铝门窗、商店柜台、货架等具有外形美观、坚固耐蚀等特点。这些型材大多数断面形状复杂、壁的薄厚差较大,空心和半空心,因此,采用分流组合模或平模生产。这种组合模结构复杂、空腔多、变形阻力大,加上挤压系数大,速度快,生产操作过程中稍不精心就会发生堵模,继续挤压很容易造成模具损坏。堵损模有以下几方面的危害:
First, the topic With the development of the national economy, aluminum alloy building profiles have been more and more widely used. With its assembly of aluminum doors and windows, store counters, shelves and other beautiful appearance, strong corrosion resistance and so on. Most sections of these profiles are complex in shape, with large differences in wall thickness, hollow and semi-hollow, and therefore, the use of split-split or flat-die production. The complex mold structure is complex, cavity, deformation resistance, coupled with the extrusion coefficient, speed, production operation is not meticulous will occlusion mode, continue to squeeze it is likely to cause damage to the mold. Blocking mode has the following hazards: