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园切面橡胶圈如图1所示,如果作为密封用时,称为“元切面密封橡胶圈”。密封橡胶圈的精度要求比较高。除精度要求比较高以外,对毛刺存在的位置即分模面更是有严格的要求。分模的方式直接决定橡胶圈上毛刺的位置。用于平面密封时则A处不能有毛刺,即不能从A处分模,见图1a,用于孔径轴径密封时则B处不能有毛刺,即不能从B处分模,见图1b;当用于平面、孔径、轴径都要密封时,则A处B处都不能有毛刺,即不能从A处B处分模,这时分模面一般是设在45°方向,如图1c所示。用于孔径轴
Park section rubber ring shown in Figure 1, if used as a seal, known as the “yuan section seal rubber ring.” Seal the accuracy of the rubber ring is relatively high. In addition to the higher accuracy requirements, the location of the burr that is parting surface is more stringent requirements. Divided mode directly determines the location of the burr on the rubber ring. When used for plane seal, there should be no burr at A, that is, it can not be split from A, as shown in Fig.1a. When used for aperture and shaft sealing, there should be no burr at B, that is, When the plane, the hole diameter and the shaft diameter are to be sealed, there should be no burr at the B place of A, that is, the mold can not be parted from B at A, and the parting surface is generally set at 45 ° direction as shown in FIG. 1c. For the aperture axis