How To Repair an Aluminum Coil with Lucas Milhaupt AL822

Posted by Bob Cristan on Jun 23, 2023
Aluminum condensers and evaporators are now found extensively in the HVAC/R field. For installation and repairs, Lucas Milhaupt has the product to get the job done right. Our AL822 is a zinc/ aluminum rod with a flux core, so no separate fluxing step is required. It can be used to both join and ...
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Topics: HVAC/R, Aluminum, Brazing Tips

Brazing Components for Refrigeration

Posted by Lucas-Milhaupt Brazing Experts on Sep 24, 2015
Brazing Components for Refrigeration Today, we address correct brazing alloys as well as proper brazing methods for refrigeration components. Our main topics are: Alloy selection Gas and torch selection Brazing method Nitrogen purge System evacuation and charge Remember, brazing in the HVAC/R ...
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Topics: HVAC/R, Copper, Steel, Aluminum, Torch

Aluminum Brazing: Corrosive or Non-Corrosive Flux

Posted by Lucas-Milhaupt Brazing Experts on Mar 24, 2015
Aluminum brazing has become prevalent in the automotive and HVAC/R industries. Most manufacturers are using all-aluminum or mostly aluminum components, including evaporator and condenser coils, distributors, liquid and suction lines. When brazing aluminum, two families of fluxes are commercially ...
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Topics: Copper, Nickel, Aluminum, Torch

Protecting Aluminum-Copper HVAC/R Joints

Posted by Lucas-Milhaupt Brazing Experts on May 15, 2014
Aluminum-Copper HVAC Protection The HVAC/Refrigeration industry is converting many components from copper to aluminum. The reasons? Aluminum is less expensive by weight, is more corrosion resistant, weighs less, and maintains similar heat-transfer rates to copper. These aluminum parts are joined to ...
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Topics: HVAC/R, Copper, Aluminum, Torch, Brazing Tips

How to Select a Sil-Fos Alloy

Posted by Lucas-Milhaupt Brazing Experts on Aug 13, 2013
Benefits of Sil-Fos® Sil-Fos® alloys have become popular in the HVAC/R and plumbing industries because of these benefits: Ability to join copper to copper without flux, saving time Streamlined brazing operation, saving time Ability to fill a wide range of joint clearances Ease of operator use, with ...
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Topics: HVAC/R, Aluminum

Joining Aluminum to Copper Video

Posted by Lucas-Milhaupt Brazing Experts on Mar 14, 2013
In about four minutes, this new technical video from Lucas-Milhaupt will walk you step-by-step through this brazing process. We'll address procedures and alloy options that will help you successfully braze copper and aluminum components. Watch for the definition of a perfect joint gap! We'll share ...
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Topics: Copper, Aluminum

HVAC Joining Aluminum to Copper

Posted by Lucas-Milhaupt Brazing Experts on Apr 26, 2012
Copper-to-Aluminum Joint Integrity HVAC manufacturers evaluating the use of aluminum components need to consider the best method for joining parts-such as evaporator and condenser coils-to secondary copper lines or assemblies. Several joining methods can be used, including: adhesives, mechanical ...
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Topics: Copper, Aluminum

HVAC Trend: From Copper to Aluminum

Posted by Lucas-Milhaupt Brazing Experts on Apr 2, 2012
HVAC Trends The global HVAC/R market continues to grow, as the world population migrates to warmer regions and as a growing middle class (especially in developing countries) demands cooling comfort. In addition, legislation has forced changes within the industry: ozone-depleting refrigerants are ...
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Topics: Copper, Aluminum