Dip the solder rod into the flux and apply it to the joint of the steel and pot metal. Continue broadly heating until the flux changes color. Notice the technique: he tins the surface by slowly adding a small amount of solder to the pot metal, followed by flux to flow the material completely.
We cooled the part quicker than normal for the video but would always suggest letting the part air cool. Log in Social login does not work in incognito and private browsers.
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Download Article Explore this Article parts. Tips and Warnings. Things You'll Need. Related Articles. Part 1. All rights reserved. This image may not be used by other entities without the express written consent of wikiHow, Inc. Work in a well-ventilated area and wear protective equipment.
Soldering stainless steel requires solvents and other chemicals that could vaporize during the heating process. Do all the work in a well-ventilated area to avoid breathing in any fumes from the process.
Always wear eye protection and gloves when you're soldering. Wear a dust mask for an extra layer of protection. Wipe the stainless steel down with a solvent to remove oil and grease. Surface contaminants prevent soldered material from binding properly. Remove any liquid or grease contaminants with a solvent cleaner. For pieces caked in grease or oil, use a stronger cleaner like acetone. Acetone is corrosive, irritating, and flammable.
Wear gloves when you handle it and keep it away from open flames. If you get any on your skin, hold the area under running water for 5 minutes. Remove solid contaminants with a metal wire brush. The solvent cleaning may not remove solid contaminants like dust and dirt. Brush down both pieces of metal on their soldering surface to prepare them for binding.
A rough surface actually helps the solder bind better. Wipe an acid-based flux onto the steel surface. The key to making solder bind to stainless steel is treating it with flux before soldering.
Flux is an oily or watery substance, depending on the type, that cleans metal surfaces so they bind better. For stainless steel, an acid flux removes oxides from the steel surface and helps the metals stick together. Use a strong, acid-based flux. Wet a brush with the flux and apply it to the stainless steel. This is usually printed on the product label. Use gloves and eye protection when handling acids. Other rosin-based fluxes are not effective for soldering stainless steel.
Use a stronger, acid-based flux. Part 2. While there are many types of solder, a high-tin variety binds best with stainless steel. Tin also matches the color of stainless steel, so it makes for a better visible seal. Remember that solder with silver takes longer to melt. Arrange them at the angle you want them to bind. Then use a clip or vise to clamp them into place. With the soft solders and a zinc chloride flux most common , these metals will bond very easily: copper, tin, and brass.
These metals will NOT bond: Iron, stainless steel, steel, and aluminum. Solder easily flows on, and sticks to, well-heated surfaces. If after both these steps the solder still refuses to stick onto the iron , add some flux to your soldering iron's tip. Step 2: Filing the Terminals. Take a file to the positive and negative ends of the battery and rough them up. Step 3: Applying the Solder.
Make sure your soldering iron is clean and then tin the tip of it. Step 4: Attaching the Wires. Strip both ends of each wire and then tin one end of each wire. Bear in mind though, most common solder wire is rosin-core, it has one or more cores of flux inside of it. The kind of solder plumbers use has no flux because they apply the flux externally.
So you could solder with that solder. At low heat the solder might not melt fast enough, and a cold solder joint may result. Solder bonds to metal, but not metal oxides. Gold doesn't oxidize readily, but other compounds found on circuit boards, like copper and nickel, do so readily.
Why does my solder not stick to copper pipe? Keep pipes dry when soldering Don't try to solder pipes with water in them. Most of the heat from the torch goes into turning the water to steam, so the copper won't get hot enough to melt the solder.
Stop the trickle of water with a pipe plug. Push the plug into the pipe with the applicator tube provided. Does flux help solder stick? Flux removes oxidation from metals, and it's crucial because solder won't stick to oxidized metals, and metals oxidize very quickly at soldering temperatures.
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