Weekly Topic: Is it better to use impellers with chromium carbide coatings entirely for the slurry tank agitator, or to weld a layer on the face facing the flow?

2011-11-07View Original

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Is it better to use impeller blades with a chromium carbide coating, or to weld a layer on the face facing the flow, for the stirrers in coal slurry tanks?

Reply #22011-11-07

The forward-facing surface is welded on for the following reason: 1. To save investment； 2. Increase steel toughness ；

Reply #32012-08-14

Single facing welding probably won’t solve the abrasion problem, right? The back side of the blade may be more severely abraded.

Reply #42012-08-14

Single facing welding probably won’t solve the abrasion problem, right? The back side of the blade may be more severely abraded.

Reply #52012-08-18

I don’t know much about this aspect. Could the original poster explain in detail what the advantages and disadvantages of these two options are?

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Weekly Topic: Is it better to use impellers with chromium carbide coatings entirely for the slurry tank agitator, or to weld a layer on the face facing the flow?

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