| 摘要 |
<p>The invention relates to a process for the production of carbon brushes, comprising the steps of (a) preparing a pulverulent composition which comprises a carbon powder and a pulverulent thermoplastic binder, (b) processing the pulverulent composition from step (a) at a temperature above the melting point of the thermoplastic binder in order to obtain a mixture which comprises the carbon powder and the molten thermoplastic binder, (c) optionally milling and sieving the mixture from step (b), (d) compression molding the mixture from step (b) or step (c), if carried out, to give a desired shape, and (e) thermally treating the shaped product form step (d) at a temperature above the melting point of the thermoplastic binder but below its decomposition temperature. The invention is also directed to a carbon brush prepared by said process.</p> |
