| 摘要 |
The invention relates to the mill production, namely to mills with rotating knives, in particular to knives for milling having a hard-alloy part for increasing the wear-resistance of the cutting edges. The knife for milling is made in the form of rectangular plate, onto one of the margins of which there is made a slant with formation of the cutting edge and is applied a built-up layer, composed of two layers of hard alloy, between which there is placed a layer of material identical to the basic material of the knife's body. Novelty consists in that onto the opposite margin of the knife there is additionally made the second slant, identical and parallel to the first one, with formation of the cutting edge. Both slants are made along the big margins of the knife, and the built-up layers are deposited onto both sides of the knife along the cutting edges. On both sides of the knife along the cutting edges there are made recesses, into each of which being deposited the built-up layer.
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