我厂生产各种不同规格的非金属材料垫圈,常用的材料有聚四氟乙烯、橡皮、红纸板、海棉橡皮、皮毡、轻革、夹布胶木、牛皮、钢纸等,材料厚度为0.5mm至5mm,见图1所示。据统计,上述工件“D”与“d”尺寸不等的专用裁切模有200余套,其中外径“D”尺寸相同的有100套以上,内径“d”尺寸相同的有70套以上。专用裁切模结构见图2所示。 I plant a variety of different specifications of non-metallic materials, gaskets, commonly used materials are PTFE, rubber, red cardboard, sponge rubber, leather felt, light leather, cloth bakelite, leather, steel, etc., 0.5mm to 5mm, shown in Figure 1. According to statistics, there are more than 200 sets of special cutting dies with different sizes of “D” and “d”, of which more than 100 sets have the same outer diameter “D” and more than 70 sets with the same inner diameter “d” . Special cutting die structure shown in Figure 2.