| 摘要 |
A method for the production of a slideway-type guide for driven chains such as cutting chains includes the application of a wear-resistant hard metal alloy as a running surface to the slideway of the guide. A bar-shaped blank with a dentritic structure, made from the alloy, is produced to form the running surface, a suction casting process being used in particular for this purpose. The blank is treated by hot isostatic pressing with high pressure at a high temperature. This is followed by an annealing process over a number of hours, at the end of which the structure of the alloy is so altered that the previously acicular and, to some extent, lattice-type carbides are dispersed and converted to rounded and, to some extent, spheroidal bodies which are densely and evenly distributed throughout the alloy. The alloy thereby becomes highly wear-resistant. The bars are then shaped so as to fit onto the slideway, and are fixedly connected thereto.
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