Maintenance workpiece: guard jacket,impeller
Material: High chrome alloy.
The condition before repairing: scrap part
Impeller diameter: 710mm
Material selection: BD7041 super wear resistant coatings,BD426T special undercoat,cast iron welding rod,thin steel plate.
Construction tools: angle grinder,wire brush,grinding wheel,plaster knife,plastic knife,rubber hammer,special rounding tools,hair brush,electronic scale,iodine-tungsten lamp,welding machine.
Auxiliary materials: cleaning agent,duster cloth,gloves.
Construction technology of BD7041 super wear resistant coating:
1.Clean up and polish pending-repair workpiece on the needing-repair part.
2.Configure BD426T special undercoat and brush coating on the pending-repair part.
3.Configure BD7041 super abrasion resistant coatings and make it be coating on the pending-repair part,knock on it to be compacted with rubber hammer,then trim the surface with special rounding tools,make the surface be flat and smooth.
4.After repairing the surface to be smooth,smear a layer of BD426T on the surface uniformly as the topcoat.
5.Curing for 24 hours at room temperature,when the temperature is below 15‘ζ,should properly heat it up to promote the curing.
Material utilization amount: 40Kg BD7041 super wear resistant coating, 2Kg BD426T special undercoat.
