| Job Title |
Heat-treating Bluer |
| Job Description |
Operates Gas Furnace That Heats Metal Gun Parts To Rustproof
And Impart Decorative Nonreflecting Blue Finish: Sprays Parts
With Steam To Remove Grease, Grit, And Dirt. Places Parts In
Barrel Of Gas Furnace And Covers Parts With Mixture Of Bone
Chips And Whale Or Pine Tar Oil. Closes Furnace Door And Moves
Lever To Rotate Barrel. Turns Gas Valves And Observes Pyrometer
To Regulate Temperature Of Furnace. Opens Door After Furnace
Cools, And Pulls Lever To Tilt Barrel And Dump Contents Into
Sieve. Sifts Parts From Bone Mixture And Quenches Parts In Oil.
Blows Oil And Chips From Blued Parts, Using Airhose. Examines
Parts To Ensure Shade And Color Conform To Specifications,
Utilizing Knowledge Of Heat-treating Methods And Metal
Properties.
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