Prufi

8 checks and profiles

Coating

Coating dimensional allowances and hot-dip galvanizing.

Hot-dip galvanizing

Coating dimensional allowance

PRU-160Declared input

Coating growth consumes diameter allowance

Selected full bore/shaft on explicitly pre-coating geometry: bare diameter minus/plus 2x declared outward per-surface growth versus required final diameter bound. Uniform nominal allowance screen, no deposited-thickness/tolerance certification.

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PRU-191Declared input

Prepared edge below TIGER primer radius advice

INFO below 1mm: selected quarter-cylinder convex prepared round tangent to perpendicular planes; TIGER Primer 270–273 approximate 1–2mm guidance. Compatible declared steel/aluminum substrate, excludes opposite curved sheet-bend wall.

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PRU-250Declared input

Powder coating access needs review

Exact material-intersection screen from declared gun points to selected planar face-interior points on one valid solid. INFO when no clear front-facing segment exists. Sealed-cavity gun positions excluded. This is not a powder-transport, electric-field, gun-body, full-face or coating-quality prediction.

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PRU-251Declared input

Required mask missing from coating plan

Compare explicitly required uncoated face IDs against the declared mask plan, on one valid solid. INFO for omitted faces; no inference of threads, mating intent, mask fit or actual coating deposition.

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PRU-260Declared input

Qualified thread pitch diameter outside finished interval

Explicit qualified pre-coating pitch diameter plus/minus 4 times uniform normal electroless nickel thickness for declared 60-degree metric thread; selected simplified full cylinder establishes only internal/external location and material side. Finished min/max PD limits declared. No PD derived from CAD bore/shaft radius; no thread class or strength assessment.

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PRU-271Declared input

Qualified gun envelope access needs review

Exact complete cylindrical enclosing gun envelope over an explicitly declared straight axial approach. INFO for conservative envelope interference or tangency; enclosed starts and incomplete geometric proof unassessed. Does not prove actual gun collision or deposited coverage.

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