Laser forming method of Cr3C2-NiCr composite material component
A laser forming and laser head technology, applied in additive processing, process efficiency improvement, additive manufacturing, etc., can solve the problem of uneven distribution of reinforcement phase, change the design composition of reinforcement phase, and large difference in packing density of metal powder and graphite powder and other problems to achieve the effect of eliminating uneven distribution
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Embodiment 1
[0020] Embodiment one, a kind of Cr 3 C 2 -NiCr composite material high-temperature roll laser forming method, including the following processes:
[0021] (1) Raw material formula and pretreatment
[0022] The raw material formula is: graphite 3.31wt.%, Cr30.25wt.%, Mo3.85%, rare earth oxide 0.38wt.%, Ni balance. The raw materials are in the form of powder, and the particle size of metal Ni, Cr, Mo powder and graphite powder is 50-200 microns; Cr powder and rare earth oxide are ball milled and mixed for 1 hour.
[0023] (2) Powder feeding and mixing
[0024] The multi-hopper screw powder feeding mixing system is used for powder feeding and instant mixing. The mixed powder of Cr and rare earth oxides is put into the first hopper, Ni powder is placed in the second hopper, and Mo powder is placed in the third hopper. Graphite powder is placed in the fourth hopper; 4 powder feeders feed powder at the same time, and the Cr is adjusted by the screw speed 3 C 2 Content in the p...
Embodiment 2
[0029] A Cr3C2-NiCr composite material heating furnace slip roller laser forming method, comprising the following processes:
[0030] (1) Raw material formula and pretreatment
[0031] Graphite 4.80wt.%, Cr38.53wt.%, Mo1.56%, rare earth oxide 0.41wt.%, Ni balance. The raw materials are in the form of powder, and the particle size of the metal Ni, Cr, and Mo powders is 60 microns; the Cr powder and the rare earth oxide are ball-milled and mixed for 1.5 hours.
[0032] (2) Powder feeding and mixing
[0033] The multi-hopper screw powder feeding mixing system is used for powder feeding and instant mixing. The mixed powder of Cr and rare earth oxides is put into the first hopper, Ni powder is placed in the second hopper, and Mo powder is placed in the third hopper. Graphite powder is placed in the fourth hopper; 4 powder feeders feed powder at the same time, and the Cr is adjusted by the screw speed 3 C 2 Content in local components.
[0034] (3) Laser forming
[0035]The la...
Embodiment 3
[0038] a Cr 3 C 2 -NiCr composite material high temperature shaft sleeve laser forming method, including the following process:
[0039] (1) Raw material formula and pretreatment
[0040] The raw material formula is: graphite 3.28wt.%, Cr38.39wt.%, Mo3.70%, rare earth oxide 0.71wt.%, Ni balance. The raw materials are in the form of powder, and the particle size of the metal Ni, Cr, and Mo powders is 60 microns; the Cr powder and the rare earth oxide are ball-milled and mixed for 2 hours.
[0041] (2) Powder feeding and mixing
[0042] The multi-hopper screw powder feeding mixing system is used for powder feeding and instant mixing. The mixed powder of Cr and rare earth oxides is put into the first hopper, Ni powder is placed in the second hopper, and Mo powder is placed in the third hopper. Graphite powder is placed in the fourth hopper; 4 powder feeders feed powder at the same time, and the Cr is adjusted by the screw speed 3 C 2 The content of the component is generate...
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