Brazing of Beryllium-Copper Alloys

Posted by Lucas-Milhaupt Brazing Experts on Feb 21, 2014
Brazing of Beryllium-Copper Alloys Beryllium copper offers high corrosion resistance, electrical conductivity and thermal conductivity, plus high strength and resistance to high temperatures. Non-sparking and non-magnetic, it is useful in mining and petrochemical industries. With high resistance to ...
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Warranty Statement

Posted by Lucas-Milhaupt Brazing Experts on Feb 3, 2014
Lucas-Milhaupt Warranty vs. Shelf Life Many times each year, customers ask our Technical Services Group, "What is the shelf life of your formulated products?" In most cases, Lucas-Milhaupt does not provide a shelf life, but rather a warranty. Please note that warranties do not mean that the product ...
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Topics: Flux, Solder

Washer Calculation

Posted by Lucas-Milhaupt Brazing Experts on Dec 16, 2013
Ring vs. Washer Both rings and washers are preform shapes used for brazing. For smaller parts with relatively small joint volume and lap area, either a washer or ring may be used (Figure 1). Both washers and rings can be circular in shape; however, their cross sections will always differ in shape. ...
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Topics: HVAC/R, Brazing Fundamentals

Furnace Atmosphere

Posted by Lucas-Milhaupt Brazing Experts on Dec 3, 2013
Furnace Atmosphere Atmosphere for furnace brazing can be a complicated issue. To understand the importance of atmosphere, let's review what we know about using furnaces as the heat source for brazing. Furnaces can be electrically heated or fired by oxy/fuel, and they can accommodate various types ...
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Topics: High Purity Vacuum Tube Grade, Furnace

Tips for Designing Braze Joints

Posted by Lucas-Milhaupt Brazing Experts on Nov 6, 2013
Ten Tips for Designing Braze Joints Are you looking for high strength, corrosion resistance, electrical conductivity, ductility, hermeticity, good color match, or low-temperature metal joining? These requirements should be considered carefully, because different joint designs and filler metals will ...
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Topics: Brazing Fundamentals

Torch Brazing Brass to Copper with Braze™

Posted by Lucas-Milhaupt Brazing Experts on Oct 14, 2013
Braze 560 alloy is a near eutectic. Watch our three-minute video to see how this material freely wets and flows on brass and copper components. We will show you the critical steps for successfully fluxing and brazing parts to achieve quality joints. Watch for tips on the correct amount of flux to ...
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Topics: Low Silver, Copper, Torch

Fixtures for Brazing & Soldering

Posted by Kendra Pilon on Oct 8, 2013
Fixture Facts A fixture is built to cradle, hold or secure an assembly to be joined. Proper fixtures should meet these criteria: Allow easy insertion of assembly components and easy removal of the brazed assembly Support assembly components to permit expansion and contraction during heating and ...
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Brazing Copper and Brass

Posted by Kendra Pilon on Aug 21, 2013
Lucas-Milhaupt® Sil-Fos® brazing products provide a self-fluxing ability on copper, eliminating the time and expense of fluxing. However, when your operation involves brazing copper to brass or bronze, flux is required to join these different metals. Lucas-Milhaupt technicians will guide you ...
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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