How to determine the appearance of quality surfacing wear-resistant lining and internal quality?
A: The appearance of quality surfacing wear-resistant steel main judge from the following aspects:
a) Flatness: steel corners to simultaneously smooth landing.
b) weld cracking: liner to weld cracking evenly spaced, tiny cracks, expansion is not wide.
c) Surfacing size: the size of the liner cladding layer to low level, no significant irregularities. To ensure that the welding defects
Within a reasonable range.
d) Surface painting: surface paint Bohou liner should be uniform, playing putty should be uniform and smooth.
e) four weeks Cutting Edge: liner four weeks to form linear cutting edge, no flash; large plasma cutting machine good shape. The intrinsic quality of surfacing wear-resistant lining from the following aspects to determine
a) Wear layer thickness: polished Measure, surfacing significantly, taking multi-point measurements averaged. b) the total thickness of plate: control within the allowable range ± 0.5mm. c) Hardness: within the required range, HRC55-62
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d) component: If possible to carry out the measurement, inspection of the content of the alloy composition. e) microstructure: If possible, have to do metallurgical analysis.
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