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

Optimal Copper-to-Aluminum Joints

Posted by Lucas-Milhaupt Brazing Experts on Jul 23, 2013
Optimal Copper-to-Aluminum Joints HVAC/R manufacturers must control several parameters to assure joint integrity when brazing or soldering parts-such as evaporator and condenser coils-to secondary copper lines or assemblies. These parameters include joint design (i.e. joint gap, shear depth, ...
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Topics: HVAC/R

Torch Brazing Copper to Copper

Posted by Lucas-Milhaupt Brazing Experts on May 21, 2013
In about four minutes, this technical video will give you an up-close, step-by-step view of successful copper-to-copper brazing. You will learn these important steps to achieving strong, reliable joints: 1. Clean tubing and fitting, removing burrs and contaminants 2. Insert the tube, with a ...
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Topics: HVAC/R, Copper, Torch

AWS Specifications and Classifications

Posted by Lucas-Milhaupt Brazing Experts on Dec 18, 2012
AWS Specifications and Classifications The American Welding Society (AWS) is a nonprofit organization whose purpose is to support the growth of knowledge and technological advances in the field of brazing and other forms of metal joining. They have put into place a list of standards and ...
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Topics: HVAC/R

Lucas-Milhaupt, Inc. Announces NEW Sil-Fos Rings

Posted by Lucas-Milhaupt Brazing Experts on Jul 13, 2012
Lucas-Milhaupt Global Brazing Solutions would like to introduce our new Sil-Fos 15 Rings designed for brazing copper tubular components for HVAC/R installation applications. The Sil-Fos rings use a calculated alloy volume for use with standard size copper tube from 1/4 inch to 1-1/8 inch. The ...
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Topics: HVAC/R

Brazing vs. Welding

Posted by Lucas-Milhaupt Brazing Experts on May 31, 2012
What's the Difference? Welding joins base metals by melting and fusing them, usually adding a filler material. Fusion requires concentrated heat directly at the joint, and temperatures must exceed the melting point of the metals and filler. Welded joints are usually as strong as, or stronger than, ...
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Topics: HVAC/R, Solder