Method for infiltrating aluminum molybdenum rare earth coating on surface of steel
A steel surface and coating technology, applied in coating, metal material coating process, solid-state diffusion coating, etc., can solve the problems of environmental pollution, high labor intensity, and large dust, so as to reduce labor intensity and save effective space , the effect of avoiding dust pollution
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0048] The co-penetrating agent of the present invention is formulated, wherein the weight % is based on the total weight of the co-penetrating agent. The 2.5% MoO 3 , 35% Al, 54% FeAl, 8% Rare Earth Oxide and 0.5% NH 4 Cl is fully mixed, the mixed co-penetrating agent, the binder polyvinyl alcohol and water are fully mixed and stirred to prepare a slurry; the slurry is coated on the surface of the metal workpiece 9 with a thickness of 0.8mm, and then the workpiece 9 is placed. Put it into the drying furnace, dry it at 80℃ for 60min, put the dried metal workpiece 9 into the infiltration box 8, see figure 1 . Formulated Sealer 6, 35% Al, 56.4% FeAl, 8% Rare Earth Oxide, 0.6% NH 4 Cl is fully mixed, the evenly mixed sealing agent 6 is put into the box body 5, then the box body 5 is placed on the open end of the infiltration box, and the infiltration box cover 2 is installed with bolts 4 through the flange 3 on the box body 8 on box 8, see figure 1 . Then put the infiltrati...
Embodiment 2
[0050] The preparation process of the co-penetrating agent, the slurry and the sealing agent and the coating, drying and boxing process of the workpiece are the same as those in Example 1. The composition of the co-penetrant is 5% MoO 3 , 28% Al, 60.4% FeAl, 6% Rare Earth Oxide and 0.6% NH 4Cl, the slurry coating thickness is 1.2mm. The composition of the sealer is 28% Al, 66.2% FeAl, 5% Rare Earth Oxide, 0.8% NH 4 Cl. The co-infiltration heat treatment process is as follows: heating from room temperature to 450°C at a heating rate of 10°C / min, holding for 0.5h, then heating from 450°C to 980°C at a heating rate of 8°C / min, holding for 5h, and then cooling to room temperature with the furnace in air , to obtain aluminum-molybdenum rare-earth co-infiltration workpieces and samples. The functions of the vent holes and the ventilation holes are the same as those in Example 1.
Embodiment 3
[0052] The preparation process of the co-penetrating agent, the slurry and the sealing agent and the coating, drying and boxing process of the workpiece are the same as those in Example 1. The composition of the co-penetrant is 8% MoO 3 , 26% Al, 62.8% FeAl, 2% Rare Earth Oxide and 1.2% NH 4 Cl, the slurry coating thickness is 1.5mm. The composition of the sealer is 26% Al, 70.6% FeAl, 2% Rare Earth Oxide, 1.4% NH 4 Cl. The co-infiltration heat treatment process is as follows: the temperature is raised from room temperature to 450°C at a heating rate of 10°C / min, and the temperature is kept for 0.5h. Then, the temperature was increased from 450 °C to 1000 °C at a heating rate of 8 °C / min, and the temperature was maintained for 4 hours, and then air-cooled to room temperature in the furnace to obtain aluminum-molybdenum rare-earth co-infiltration workpieces and samples. The functions of the vent holes and the ventilation holes are the same as those in Example 1.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More