| 摘要 |
The ski wax, in addition to paraffin wax, contains at least one homogeneously dispersed, water-soluble substance. It is prepared by dissolving the water-soluble substance or a mixture of such substances in molten paraffin wax. The gliding of the ski over snow gives rise to heat of friction, which results locally in a thin film of water which lowers the coefficient of friction. As the water resolidifies, it forms ice which tends to stick to the bottom of the ski, increasing the coefficient of friction and interfering with the gliding. Appropriate choice of the water-soluble substances and the proportion thereof in the paraffin makes it possible, together with snow of a certain temperature, to achieve a freezing point depression equal to or below the melting temperature of the snow in question. This makes it possible, in the snow of the respective temperature range, to stop the film of water forming on the base of the ski from resolidifying.
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