The invention discloses a bucket tooth made of a wear-resistant
composite material, and a preparation method thereof. The bucket tooth made of the wear-resistant
composite material comprises a tooth head made of a
composite material, a
metal-matrix tooth
tail and a
rubber ring, wherein the tooth head made of the composite material is connected with the
metal-matrix tooth
tail; a pin shaft hole isformed in the
metal-matrix tooth
tail; and the
rubber ring is sleeved in the hole. The preparation method comprises the steps of mixing
iron powder and
ceramic particles, then adding absolute ethyl
alcohol, ball-milling mixing, adding a binding agent, uniformly stirring, filling into a die, carrying out
microwave calcining to obtain a tooth head precast made of a composite material, fixing the tooth head precast made of the composite material onto a working surface of a female die,
casting molten metal, ejecting a male die, cooling for demoulding,
machining to obtain the pin shaft hole, carrying out heat treatment, and placing in the
rubber ring so as to obtain the bucket tooth made of the composite material; and compounding the
ceramic particles on the tooth head, so that a wear-resistingproperty is improved, the bucket tooth not only has favorable
plasticity of metal but also has high hardiness and
high wear resistance of the
ceramic particles, the favorable working efficiency of the equipment is ensured, the
impact stress is reduced due to the rubber ring, and the service life is remarkably prolonged.