| 摘要 |
Wear clips for protecting the edges of auger-type blades and similarly curved blade edges, are formed of steel channels filled with a matrix of irregular shaped and sized, small, hard carbide particles and a soft, ductile, brazing material. The clips are arranged in an end-to-end row with a slight gap between each adjacent pair. The clips are welded to the blade and to each other. Breakage of the brittle carbide particles and of the matrix, due to impact forces, is avoided due to relative movement of the particles within the surrounding brazing material under impact loads. The clip channel may be made of a flattened tube which is filled with the matrix and then cut into short clip lengths. Thus, the exposed surface of the tube, which temporarily forms an integral cover for the channel, is rapidly worn away by abrasion during use of the blade, to expose the matrix.
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