Powdered material used for preparing high-temperature wear-resistant cladding layer and preparation method thereof
A powder material, high-temperature wear-resistant technology, applied in the field of surface engineering, to achieve the effects of low dilution rate, low preparation cost and simple process
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[0025] Embodiment: TiB is prepared on the heating surface of the water wall tube 2 Reinforced wear-resistant cladding layer
[0026] 1. Preparation of mixed powder
[0027] 1. Preparation of powder raw materials
[0028] The proportioning of described powder raw material is as follows:
[0029] TiB 2 Powder (grain size-200+350 mesh): 15 wt.%, Ni-Cr-Mo-Fe-Nb-B-Si-C alloy powder (grain size-140+325 mesh): balance; of which, Ni-Cr- The composition of Mo-Fe-Nb-B-Si-C alloy alloy powder is: Cr:24wt.%, Mo:1wt.%, Fe:3wt.%, Nb:0.6wt.%, B:3.5wt.%, Si: 3.7wt.%, C: 1wt.%, Ni: balance.
[0030] Ni-Cr-Mo-Fe-Nb-B-Si-C alloy powder was prepared by gas atomization method.
[0031] 2. Preparation process of mixed powder
[0032] (1) According to the various powder ratios described in step 1, weigh the various powders required for the powder raw materials;
[0033] (2) Put the powder raw material into a drying oven for drying, the temperature of the drying oven is 110°C, and the drying ...
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