Titanium addition to a water tube adjacent to a soot blower of a pulverized coal boiler Amorphous transition metal film treatment

摘要

The water pipe adjacent to the coal-fired boiler of the large coal-fired power plant was rubbed with an iron brush and wiped clean with solvent. Then, 20-30 mesh alumina was sprayed by a grit blasting machine to form irregularities. Then, 1.1-2.4 wt% of Si and 24.5-32.0 wt% %, Mn 1.0-2.8 wt%, B 3.0-4.2 wt%, Ti 0.15-0.65 wt%, Fe 57.73-70.25 wt%, C 0-0.2 wt% and S 0-0.02 wt% Or HVOF spraying method, it is possible to apply the coating of 0.25-0.75mm in thickness to improve the hardness, increase the hardness, and protect the water tube from erosion in the long term by the strong adhesive force, excellent thermal shock resistance,