| 摘要 |
Procedure for making semi-finished products from a mixture based on sulfur vulcanizable diene elastomers consists of dividing the mixture to yield small elements such as crumbs with a mean diameter of 5 - 10 mm or less, distributing them in a mould and compressing. Procedure for making semi-finished products from a mixture based on sulfur vulcanizable diene elastomers consists of dividing the mixture to yield small elements such as crumbs with a mean diameter of 5 - 10 mm or less, distributing them in a mould and compressing. The division of the mixture can be carried out by continuous or discontinuous extrusion in thin lengths and cutting into small cubes, and prior to distribution in the mould the crumb can be reheated to a temperature of 50 - 120 deg C and shaped. It can then be transferred to the mould while still hot, and after Molding at a pressure of 30 - 100 bars for a period of 1 - 3 minutes or less the semi-finished products are stored in cassettes until they have finished stabilizing.
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