a ti 3 alc 2 Method for preparing ceramic-bonded diamond drilling tool bit
A ceramic bond, diamond tip technology, used in metal processing equipment, manufacturing tools, grinding/polishing equipment, etc., to achieve the effect of good chemical bonding, low density, and shortened process flow
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Embodiment 1
[0022] A kind of Ti 3 AlC 2 The preparation method of base vitrified bond diamond drilling tool cutter head, select Ti powder, Al powder and C powder that particle size is 300 meshes, take by weighing according to the ratio of Ti: Al: C=3: 1: 2 according to molar ratio, in ball mill Mix well in the medium for 5 hours to obtain a uniformly mixed powder; add diamond particles with a volume percentage of 10% to the obtained powder, and mix for 1 hour to obtain a formula; fill the formula into a cold pressing mold, and use a cold press to form it. The pressure was controlled at 10 MPa to obtain a cold-pressed compact with a size of 55×10×10 mm; the obtained cold-pressed compact was put into a microwave pressureless sintering furnace protected by argon, and 2450MHz microwave energy was used as the heat source, and the microwave power was 3kW. According to the time of 6s, the cold compact is ignited and a self-propagating sintering reaction occurs, and the microwave is maintained f...
Embodiment 2
[0024] A kind of Ti 3 AlC 2 The preparation method of base vitrified bond diamond drilling tool cutter head, select Ti powder, Al powder and C powder that particle size is 300 meshes, according to molar ratio be Ti: Al: C=2.9: 1: 2.1 ratio by weighing, in ball mill Mix well in the medium for 6 hours to obtain a uniformly mixed powder; add diamond particles with a volume percentage of 20% to the obtained powder, and mix for 2 hours to obtain a formula; fill the formula into a cold pressing mold, and use a cold press to form it. The pressure was controlled at 20MPa to obtain a cold-pressed compact with a size of 55×10×10 mm; the obtained cold-pressed compact was put into an argon-protected microwave pressureless sintering furnace, using 2450MHz microwave energy as the heat source, and the microwave power was 4kW. According to the time of 10s, the cold compact is ignited and a self-propagating sintering reaction occurs, and the microwave is maintained for 50s to obtain Ti 3 AlC...
Embodiment 3
[0026] A kind of Ti 3 AlC 2 The preparation method of the base vitrified bond diamond drilling tool cutter head, select Ti powder, Al powder and C powder with particle size of 300 mesh, according to the ratio of Ti: Al: C=3.1: 1: 1.9 according to the molar ratio, take by weighing in the ball mill Mix well in the medium for 7 hours to obtain a uniformly mixed powder; add diamond particles with a volume percentage of 30% to the obtained powder, and mix for 3 hours to obtain a formula; fill the formula into a cold press mold, and use a cold press to form it. The pressure was controlled at 30MPa to obtain a cold-pressed compact with a size of 55×10×10 mm; the obtained cold-pressed compact was put into a microwave pressureless sintering furnace protected by argon gas, and 2450MHz microwave energy was used as the heat source, and the microwave power was 5kW. According to the time of 15s, the cold compact is ignited and a self-propagating sintering reaction occurs, and the microwave...
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