Blog

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 ...

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 ...

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 ...

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 ...

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, ...

Proper application of heat is a vital factor in brazing success. This technical video will show you three types of flames that can be produced by an oxy-acetylene torch: Neutral Oxidizing Reducing We'll explore the differences between these flames. Then, we'll discuss how each flame is used and the ...

Lucas-Milhaupt has studied the use of preformed rings vs. hand-fed alloy in prefabrication of refrigeration units. Let’s look at preformed rings, the advantages of using rings, and the quality of braze joints they produce. Figure 1. Cross-section, Pre-placed Ring Inside Tube-to-tube Joint Preformed ...

Flux is a chemical compound applied to joint surfaces before brazing. The addition of metallic boron changes white flux to black. This new video clip will show you the difference between these materials. We will also demonstrate several uses for black flux. For example, in a high-temperature ...

When it comes to safely brazing with oxy-acetylene torches, let's look at two important aspects: safety equipment, plus procedures for safe operation. This is serious business: arc rays and sparks can result in loss of sight, fume inhalation can lead to lung damage, and other accidents can cause ...

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 ...