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Preparation process of high-temperature-abrasion-resistant Co3B block
The invention discloses a preparation process of a high-temperature-abrasion-resistant Co3B block. The preparation process comprises the following steps: firstly, quickly weighing Co powder and B powder according to a mole ratio of 3:1, then loading the Co powder and the B powder into a ball milling tank, vacuumizing, and charging argon, wherein the purity of each powder is not lower than 99.8 percent; secondly, putting the ball milling tank into a ball mill, performing ball milling for 10-100 hours, and quickly filling Co and B mixed powder which is taken out into a graphite crucible; finally, putting the graphite crucible filled with the Co and B mixed powder into a plasma activation sintering furnace, sintering at the temperature of 750-1,000 DEG C under the vacuum pressure, carrying out heat preservation for 5-10 minutes, and performing natural cooling in the furnace after sintering is finished to finally obtain the Co3B block. The technological process is simple, the production cost is low, stellite alloy can be replaced by the prepared Co3B block, and the Co3B block is applicable to different abrasion working conditions resisting high-temperature corrosion.
Preparation process of high-temperature-abrasion-resistant Co3B block
The invention discloses a preparation process of a high-temperature-abrasion-resistant Co3B block. The preparation process comprises the following steps: firstly, quickly weighing Co powder and B powder according to a mole ratio of 3:1, then loading the Co powder and the B powder into a ball milling tank, vacuumizing, and charging argon, wherein the purity of each powder is not lower than 99.8 percent; secondly, putting the ball milling tank into a ball mill, performing ball milling for 10-100 hours, and quickly filling Co and B mixed powder which is taken out into a graphite crucible; finally, putting the graphite crucible filled with the Co and B mixed powder into a plasma activation sintering furnace, sintering at the temperature of 750-1,000 DEG C under the vacuum pressure, carrying out heat preservation for 5-10 minutes, and performing natural cooling in the furnace after sintering is finished to finally obtain the Co3B block. The technological process is simple, the production cost is low, stellite alloy can be replaced by the prepared Co3B block, and the Co3B block is applicable to different abrasion working conditions resisting high-temperature corrosion.
Preparation process of high-temperature-abrasion-resistant Co3B block
HUANG ZHIFU (author) / XING JIANDONG (author) / GAO YIMIN (author)
2015-04-01
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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