| 摘要 |
<p>The invention relates to a new method for producing a packing arrangement for a hydraulically operated apparatus. The method comprises the following steps: (a) producing a preshaped plastic piece of seal material; (b) compressing said preshaped piece at room temperature into a cylinder; and (c) compressing said preshaped piece at room temperature to its final form in said cylinder between a piston member and a counter press member, at least one of said piston member and counter press member being provided with rounded or tapered head portion facing against said preshaped piece, whereby the cross-section of said final compressed seal member is essentially wedge-shaped. The invention relates also to a packing arrangement produced by the method of the invention.</p> |
