A superhard self-lubricating coating tool and its preparation method
A self-lubricating coating and tool technology, used in coatings, metal material coating processes, melt spraying and other directions, can solve the problems of severe tool friction and wear and tool life reduction, so as to improve tool life and reduce friction and wear. , the effect of strong binding strength
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Embodiment 1
[0018] A super-hard self-lubricating coating tool, the tool base material is W9Mo3Cr4V high-speed steel, and the base surface has a laminated super-hard self-lubricating layer composed of a hard alloy layer, an alumina ceramic layer, a silicon nitride ceramic layer and a cubic boron nitride layer. Coating, the superhard self-lubricating coating adopts the plasma spraying method to successively clad cemented carbide mixed powder, alumina ceramic layer mixed powder, silicon nitride ceramic mixed powder and cubic Preparation of boron nitride mixed powder. The weight percentage of each component in cemented carbide mixed powder is: 55% WC, 8% TiC, 8% Co, 1% TaN, 20% Ni60A, 2% PbO, 2% Mo, 2% TiB 2 , 0.5% BNNTs, 0.5% CNTs, 1% graphene, the sum of the weight percentages of each material is 100%; the weight percentage of each component in the alumina ceramic mixed powder is: 45% Al2 o 3 , 20% TiC, 20% Ni60A, 4% PbO, 4% Mo, 2% TiB 2 , 2% BNNTs, 2% CNTs, 1% graphene, the sum of the we...
Embodiment 2
[0027] A super-hard self-lubricating coating tool, the base material of the tool is 9W18Cr4V high-speed steel, and the surface of the base has a laminated super-hard self-lubricating layer composed of a hard alloy layer, an alumina ceramic layer, a silicon nitride ceramic layer and a cubic boron nitride layer. Coating, the superhard self-lubricating coating adopts the plasma spraying method to successively clad cemented carbide mixed powder, alumina ceramic layer mixed powder, silicon nitride ceramic mixed powder and cubic Preparation of boron nitride mixed powder. The weight percentage of each component in cemented carbide mixed powder is: 60%WC, 5%TiC, 5%Co, 2%TaN, 16%Ni60A, 3%PbO, 3%Mo, 3%TiB 2 , 1% BNNTs, 1% CNTs, 1% graphene, the sum of the weight percentages of each material is 100%; the weight percentage of each component in the alumina ceramic mixed powder is: 55% Al 2 o 3 , 15% TiC, 16% Ni60A, 3% PbO, 3% Mo, 3% TiB 2 , 2% BNNTs, 2% CNTs, 1% graphene, the sum of the...
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