Laser cladding Co-based alloy powder for conductor roll
A cobalt-based alloy, laser cladding technology, applied in the field of material science, can solve the problems of difficult machining, different melting points, unstable performance, etc., and achieve the effect of improving the quality of grain boundaries, good comprehensive performance, and reducing the melting point of the alloy
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Embodiment 1
[0016] A cobalt-based alloy powder for laser cladding conductive rollers, its chemical composition contains: Co, Cr, W, Mo, Ni, Fe, Si, Mn, V, B, C elements, and an appropriate amount of rare earth in the alloy composition Element Y 2 o 3 , Ce and La 2 o 3 , its chemical composition by weight percentage is: Cr: 25%; W: 7%; Mo: 4%; Ni: 7%; Fe: 5%; Mn: 1%; Si: 0.5%; V: 0.2%; B : 0.8%; C: 1.2%; Y 2 o 3 : 0.5%; La 2 o 3 : 0.5%; Ce: 0.5%; the balance is Co.
[0017] Its preparation method comprises the following processes:
[0018] 1. Metal Co, Cr, W, Mo, Ni, Fe, Si, Mn, V, B, C and rare earth element Y 2 o 3 , La 2 o 3 , Ce is prepared 50kg by above-mentioned weight percentage, is ready to make the raw material of metal powder.
[0019] 2. Start the intermediate frequency, according to the requirements of the smelting process, put in the metal to start smelting, and generally put in the metal that is easy to oxidize in the later stage of melting. The melting temperat...
Embodiment 2
[0028] A cobalt-based alloy powder for laser cladding conductive rollers, its chemical composition contains: Co, Cr, W, Mo, Ni, Fe, Si, Mn, V, B, C elements, and an appropriate amount of rare earth in the alloy composition Element Y 2 o 3 , Ce, and Hf, its chemical composition by weight percentage is: Cr: 27%; W: 8%; Mo: 5%; Ni: 9%; Fe: 7%; Mn: 1.2%; Si: 1%; V : 0.4%; B: 1.2%; C: 2%; Y 2 o 3 : 0.5%; Ce: 0.5%; Hf: 0.5%, the balance being Co.
[0029] Its preparation method is identical with embodiment one.
Embodiment 3
[0031] A cobalt-based alloy powder for laser cladding conductive rollers, its chemical composition contains: Co, Cr, W, Mo, Ni, Fe, Si, Mn, V, B, C elements, and an appropriate amount of rare earth in the alloy composition Elements Ce, Hf and La 2 o 3 , its chemical composition by weight percentage is: Cr: 29%; W: 9%; Mo: 5%; Ni: 11%; Fe: 9%; Mn: 1.5%; Si: 1.5%; V: 0.5%; B : 1.5%; C: 2.4%; Ce: 0.5%; La 2 o 3 : 0.5%; Hf: 0.5%, the balance is Co.
[0032] Its preparation method is identical with embodiment one.
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