| 摘要 |
<p>The invention relates to a method of making a two-part gasket (10) of the type in which a second plastic component (15) is injection molded under high pressure into a groove (20) formed in a previously molded support plastic component (12), and in which the support component is subject to sink or differential shrinkage after molding. Flashing of the second component (15) over the face surfaces (21, 22) of the support component (12) is prevented by raised lips (30) adjacent to the margin of the grooves formed in the support component to receive the second component. The lips are crushed by flat surfaces in the mold beyond the elastic limit of the lips to form high pressure barriers along the margins.</p> |
