Cladding technology for the inner wall of equipment flanges
Thread Content
The technical issue that needs to be addressed in the surfacing of the inner wall of the equipment flange is 1, the problem of deformation prevention； 2. Raw material cost issue ； 3. Efficiency issues ； 4. Ensure the thickness of the anti-corrosion layer is appropriate ； 5. Prevent surfacing cracks. What experiences and measures do you all have?
Strip welding – efficiency. Heat treatment after welding with a transition layer – enables easy control of the thickness of the corrosion-resistant layer and prevention of cracks. Final machining – to prevent deformation
The main purpose is to prevent deformation, especially at the pipe ends; therefore, sufficient machining allowance must be left
Crack prevention is quite important, as cracks are difficult to deal with; it mainly relies on heat treatment after welding to ensure this. If deformation occurs, just leave more machining allowance. I think it would be simpler and more efficient if a layer of stainless steel plate were added as an inner lining, right? Although post-weld machining is essential.
I have an attachment that I paid to download, and I’d like to share it with everyone. But I don’t know how to upload it.
I want to share the manufacturing techniques for the inner surface of flange forgings with everyone, but I can’t upload files in PDF or RAR format. BlueDream, what should I do?
The main issue is preventing surfacing cracks
I’ve never seen a cladding flange; are there any pictures? **The main issue with welding gaskets is preventing deformation; the flanges of our company’s condenser water chambers are around 2 meters in length.
Welding on the inner wall of the equipment flange? What kind of equipment flanges require welding on their inner walls? Can’t a lining structure solve this problem?
This time I saw welding rods made of 316L material used for surfacing on the inside of carbon steel flanges; I’m not sure how thermal deformation is controlled. Since the flange diameter is large and the medium is corrosive, this approach was adopted to save costs