Dnevil: Created page with "Category:Construction Blackening Steel Parts by H. J. Coventry The Live Steamer, March-April 1950 One of the simplest methods of prod..."

2014-07-01T04:46:57Z

Created page with "Category:Construction Blackening Steel Parts by H. J. Coventry <i>The Live Steamer</i>, March-April 1950 One of the simplest methods of prod..."

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[[Category:Construction]]

[[Blackening Steel Parts]]

by [[Harry Coventry|H. J. Coventry]]

<i>[[The Live Steamer]]</i>, March-April 1950

One of the simplest methods of producing a nice blue-black finish to steel parts is as follows.

Finish the piece by any orthodox method, draw file with a #4 toolmaker file gives the best surface without rounding square corners as emery cloth is liable to do. Then wipe over whole surface with an oily clean rag. Now get a pot of lead melted, allow to stay over the burner a few minutes extra after melting is complete. This will heat the metal a few degrees above the melting point, but don't heat too much. Now plunge the oily piece of bright steel below the surface of the lead. Hold it below for a few minutes until it has acquired the temperature of the lead. Take it out, and the moment it is exposed to the air it will acquire a deep blue black color evenly all over. This kind of finish seems to resist rust to a certain extent. The writer has had two throttle levers in the basement for the past six months, one was a bright finish, the other treated as above. The former is red with rust now, while the other is unblemished.

Blackening Steel Parts - Revision history

Dnevil: Created page with "Category:Construction Blackening Steel Parts by H. J. Coventry The Live Steamer, March-April 1950 One of the simplest methods of prod..."