Part · discovery

Seal comparison cooled witness faces

Paired ferrous annular seal faces with isolated gas cavity and water-cooling passages; geometry, background leakage and corrosion unresolved.

Discovered · unresearchedClosure: OpenInventory incomplete

Capability requirements and tolerances

Consumer-specific numerical targets, quantities and acceptance limits remain open or incompletely reviewed. No smartphone-grade suitability is claimed. Distinct capability tiers require their own making route and qualification.

Making steps · draft selected for navigation; not a validated fabrication specification.

Known Parts and Tools

The selected route supplies this page's inventory and the map's dependency links from one record. Further requirements may be missing; review flags do not prove physical suitability.

Requirement	Role	Use	Relationship status
Iron stock	Part	incorporated	Cycle-checked; compatibility unknown
Precision machines	Tool	reused	Cycle-checked; compatibility unknown
Jigs and fixtures	Tool	reused	Cycle-checked; compatibility unknown
Seal witness cooling channel closure plugs	Part	incorporated	Cycle-checked; compatibility unknown
Brazing filler stock	Part	consumed joining, retained	Cycle-checked; compatibility unknown
Brazing flux stock	Part	consumed	Cycle-checked; compatibility unknown
Rendered tallow stock	Part	consumed	Cycle-checked; compatibility unknown
Nitrogen	Part	consumed verification	Cycle-checked; compatibility unknown
Localized brazing hearth	Tool	reused	Cycle-checked; compatibility unknown
Charcoal	Part	consumed	Cycle-checked; compatibility unknown
Hand-drill ignition kit	Tool	reused	Cycle-checked; compatibility unknown
Bellows	Tool	reused	Cycle-checked; compatibility unknown
Joining equipment	Tool	reused	Cycle-checked; compatibility unknown
Tongs	Tool	reused	Cycle-checked; compatibility unknown
Supports	Tool	reused	Cycle-checked; compatibility unknown
Temperature instruments	Tool	verification	Cycle-checked; compatibility unknown
Temperature fixed-point reference	Tool	verification	Cycle-checked; compatibility unknown
Manual drive	Tool	reused	Cycle-checked; compatibility unknown
Finishing grinder	Tool	reused	Cycle-checked; compatibility unknown
Surface flatness verification kit	Tool	verification	Cycle-checked; compatibility unknown
Seal witness boundary blind fixture	Tool	verification	Cycle-checked; compatibility unknown
Manual pressure comparison source	Tool	reused	Cycle-checked; compatibility unknown
Gas handling	Tool	reused	Cycle-checked; compatibility unknown
Cooling systems	Tool	reused	Cycle-checked; compatibility unknown
Thermal test equipment	Tool	reused	Cycle-checked; compatibility unknown
Cooling calorimetry fixture	Tool	verification	Cycle-checked; compatibility unknown
Pressure instruments	Tool	verification	Cycle-checked; compatibility unknown
Deadweight pressure reference	Tool	verification	Cycle-checked; compatibility unknown
Seal leak displacement comparator	Tool	verification	Cycle-checked; compatibility unknown
Seal background comparison vessel	Tool	verification	Cycle-checked; compatibility unknown
Composition test instruments	Tool	verification	Cycle-checked; compatibility unknown
Reference materials	Part	verification	Cycle-checked; compatibility unknown
Dimensional instruments	Tool	verification	Cycle-checked; compatibility unknown
Length master reference	Tool	verification	Cycle-checked; compatibility unknown
Workshop surfaces	Tool	reused	Cycle-checked; compatibility unknown
Cleaning equipment	Tool	reused	Cycle-checked; compatibility unknown
Collected process water	Part	consumed	Cycle-checked; compatibility unknown
Solvents	Part	consumed	Cycle-checked; compatibility unknown
Containers	Tool	reused	Cycle-checked; compatibility unknown
Chemical effluent collection equipment	Tool	reused	Cycle-checked; compatibility unknown
Ventilation	Tool	reused	Cycle-checked; compatibility unknown
Metalworking protection	Tool	reused	Cycle-checked; compatibility unknown
Chemical protection equipment	Tool	reused	Cycle-checked; compatibility unknown

Making outline

Manually machine paired ferrous annular witness members with separate gas cavities and through-drilled coolant passages; permanently braze access plugs, finish seal lands and independently discriminate gas/water boundaries
Detailed procedure and acceptance remain unresearched.

What remains unresolved

Manufacture, quantities, suitability and complete inventory remain unreviewed.
Current memory-first method needs source and compatibility review.

Canonical reuse assessment

{
  "existing_candidates_checked": [
    "carbide-furnace-loading-closure",
    "carbide-furnace-cold-wall-shell"
  ],
  "decision": "Separate purpose-built witness members independent of final furnace assembly."
}

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Used by

Items that directly require this item in their selected inventory.

Cold zone seal comparison fixture

Paths from Smartphone

These routes together include every item that can lead from Smartphone to this item. Repeated path combinations are collapsed; recipes are omitted.

Shortest route: Smartphone → Haptic actuator → Chip bonding wire → Wire drawing equipment → Hard, polished dies → Carbide or diamond die material → Controlled-atmosphere carbide furnace → Carbide furnace cold zone seal set → Cold zone seal comparison fixture → Seal comparison cooled witness faces

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