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Author Topic: Refigeration lines  (Read 206 times)

Offline niobrara

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Refigeration lines
« on: August 22, 2013, 08:42:06 PM »
Thru the years I really thought I had brazing ref lines down. In the last 6 months I have ran into three seperate units that I have really fought the copper to steel welds. Tried different floish and different silver soider but still dont understand whats going on. Anyone else ran into this or is it just me.

Offline krazytech

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Re: Refigeration lines
« Reply #1 on: August 22, 2013, 09:13:20 PM »
I always use silver solder on copper to steel ...flux well and clean steel very well .. I also keep heat on the copper ... steel draw the heat...HOPE IT HELPS!!  I also use silver solder rings work great!
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Offline hesterappliance

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Re: Refigeration lines
« Reply #2 on: August 22, 2013, 09:32:56 PM »
What problem are you running in too.Have you tried flux coated rods or powder stainless steal flux.

Offline niobrara

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Re: Refigeration lines
« Reply #3 on: August 22, 2013, 10:29:13 PM »
Where you getting silver  solder rings ? Not getting bonding with the steel. Clean them very good and flux. But I have now had two in the last week that have really made me wonder what is going on. Have you tried flux coated rods or powder stainless steal flux. No, but after today I will try anything.



Offline krazytech

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Re: Refigeration lines
« Reply #4 on: August 22, 2013, 10:48:54 PM »
sub zero has the silver rings used with the solder machines.. You can make them silver wire and dikes... I keep my solder wire very clean .. I flux the wire or rod... make sure you have fresh flux... I once used another techs flux and couldn't get the solder to flow.. it was his flux...
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Offline ApplianceGuru

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Re: Refigeration lines
« Reply #5 on: September 05, 2013, 11:52:32 AM »
I had this happen once.  Turned out the flux the parts distributor swore was made  for brazing didn't work worth a darn.  I bought a better flux, and it ended my problems.
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Offline Wigwag

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Re: Refigeration lines
« Reply #6 on: September 06, 2013, 07:23:29 PM »
I use flux coated brazing rods, Easy once you get the hang of it, sand the steel down to bare metal.

Offline krazytech

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Re: Refigeration lines
« Reply #7 on: September 06, 2013, 08:20:41 PM »
ApplianceGuru-
                     Do tell the Name brand so we can stay away from that flux.

Check the Basics first!!! Read the Manual !!!Buy the tech a Beer!!!

Offline ApplianceGuru

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Re: Refigeration lines
« Reply #8 on: September 06, 2013, 08:58:05 PM »
ApplianceGuru-
                     Do tell the Name brand so we can stay away from that flux.



Sorry, that happened over six years ago, and I don't recall the brand name.
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Offline krazytech

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Re: Refigeration lines
« Reply #9 on: September 06, 2013, 09:18:41 PM »
ok, i understand that... what brand do you use now?
Check the Basics first!!! Read the Manual !!!Buy the tech a Beer!!!

 

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