| 摘要 |
A durable, weld-on tooth for roll crushers is provided. The tooth includes a cast high-carbon steel body having multiple transverse grooves for receiving tungsten carbide inserts, which are silver brazed into the grooves. The tungsten inserts are located on the surfaces of the tooth that are most susceptible to wear from abrasive action of the coal as the roll crusher operates. The cast carbon steel body can be directly welded to the exterior cylindrical surface of a rotary roll crusher. For a preferred embodiment of the tooth, the front and side faces of the cast high-carbon steel body have bevels that enable weldments that secure it to the roll crusher drum to be somewhat recessed beneath the cast high-carbon steel body on three sides thereof.
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