Parker Gun Collectors Association Forums  

Go Back   Parker Gun Collectors Association Forums Parker Forums Parker Restoration

Notices

Reply
Thread Tools Display Modes
Re-Case Hardening question
Unread 03-12-2013, 11:34 AM   #1
Member
BRDHNTR
PGCA Lifetime
Member

Member Info
 
Join Date: Nov 2012
Posts: 3,745
Thanks: 7,186
Thanked 2,696 Times in 1,234 Posts

Default Re-Case Hardening question

If a frame that has been re-case hardened and case colored - if it is determined that the hardening process was done in a manner that left the metal 'soft' - cna the frame be re-hardened and re-colored without negatively affecting the frame etc.?
allen newell is offline   Reply With Quote
Unread 03-12-2013, 11:51 AM   #2
Member
Big Friend Ten (BFT)
PGCA Lifetime Member
 
Mark Ouellette's Avatar

Member Info
 
Join Date: Jun 2009
Posts: 2,046
Thanks: 1,517
Thanked 2,933 Times in 795 Posts

Default

Allen,

The case colors are a result of the case hardening unless someone used a tourch. Any heat from a tourch that was hot enough to add color would soften metal. The color purple isn't just a movie! Purple on the receiver, especially purple circles, is a sure sign of a tourch job!

Take it to an expert for re-casing. They will first need to anneal the receiver before re-casing.

Mark
__________________
Don't hunt with a gun that will embarrass your dog!

USMC Retired
USMC Distinguished Marksman
USMC Distinguished Pistol Shot
NRA Benefactor - Ring of Freedom member
Mark Ouellette is offline   Reply With Quote
The Following User Says Thank You to Mark Ouellette For Your Post:
Unread 03-12-2013, 12:23 PM   #3
Member
BRDHNTR
PGCA Lifetime
Member

Member Info
 
Join Date: Nov 2012
Posts: 3,745
Thanks: 7,186
Thanked 2,696 Times in 1,234 Posts

Default

Mark, I know that case hardening/case coloring is as much a science as art and probably more science than the other. But is it possible that the hardening process done to a gun, any gun, could be done incorrectly so as to leave the metal 'soft'? I hope I'm asking this question correctly / clearly? Can someone screw up and not harden a frame as well or as hard as it is supposed to be in this process (and I admit that I don't know how the hardness in this process is measured (Rockwell?) if at all.
allen newell is offline   Reply With Quote
Unread 03-12-2013, 01:14 PM   #4
Member
Bruce Day
PGCA Lifetime
Member
 
Bruce Day's Avatar

Member Info
 
Join Date: Nov 2008
Posts: 4,993
Thanks: 552
Thanked 15,605 Times in 2,666 Posts

Default

Quote:
Originally Posted by allen newell View Post
Mark, I know that case hardening/case coloring is as much a science as art and probably more science than the other. But is it possible that the hardening process done to a gun, any gun, could be done incorrectly so as to leave the metal 'soft'? I hope I'm asking this question correctly / clearly? Can someone screw up and not harden a frame as well or as hard as it is supposed to be in this process (and I admit that I don't know how the hardness in this process is measured (Rockwell?) if at all.
They would have to be grossly incompetant. I suppose anything is possible, but it is not probable. The screw up is more likely warping the frame.
Bruce Day is offline   Reply With Quote
The Following User Says Thank You to Bruce Day For Your Post:
Unread 03-12-2013, 02:43 PM   #5
Member
Autumn Daze
PGCA Lifetime
Member
 
Dave Suponski's Avatar

Member Info
 
Join Date: Nov 2008
Posts: 5,888
Thanks: 4,375
Thanked 4,047 Times in 1,727 Posts

Default

Allen, As Mark states correctly the color is a result of the hardening process albiet done in such a manner to produce the wonderful colors that are expected on these old guns. In an industrial setting where case hardening is done for just that purpose colors are not a primary concern. An example of this would be case hardening cold rolled steel. The steel is brought up to the correct temp and then dipped in cyanide. The finish from my experience is the color grey.

The only two things that I can see happening to an alloy that wouldn't harden would be that it wasn't brought up to the correct temperature or the wrong steel was used and it didn't contain enough carbon.
__________________
"Much care is bestowed to make it what the Sportsman needs-a good gun"-Charles Parker
Dave Suponski is offline   Reply With Quote
Unread 03-12-2013, 03:10 PM   #6
Member
BRDHNTR
PGCA Lifetime
Member

Member Info
 
Join Date: Nov 2012
Posts: 3,745
Thanks: 7,186
Thanked 2,696 Times in 1,234 Posts

Default

It was not brought up to the correct temp. But it's being corrected as we speak. Thanks everyone, you confirmed it.
allen newell is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:31 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright © 1998 - 2023, Parkerguns.org
Copyright © 2004 Design par Megatekno
- 2008 style update 3.7 avec l'autorisation de son auteur par Stradfred.