How To Make Aluminium Soldering Flux

Once this has happened strain the mixture to remove the leaves and any other small pieces of debris.

How to make aluminium soldering flux. I would like to know from first hand experience which products to buy and from where to get a quality bond please. The whole workpiece should be pre-heated with the blowpipe moving backwards and forwards along the joint line. Stir the juice in the container for 10 seconds with the wooden spoon.

The alcohol will dissolve the pine tar from the leaves. A flux for soldering aluminum and other nonferrous metals and iron to the same or different metals comprising 50-70 PERCENT EPOXIDE RESIN 15-30 PERCENT ROSIN 12-18 PERCENT TRIETHANOLAMINE AND 3-5 PERCENT OF A HEAVY METAL FLUOROBORATE OR BORON TRIFLUORIDE MONOETHYLAMINE AND OPTIONALLY AN AROMATIC AMINE OR AMIDE. Then resolder the same connection with some neutral flux.

Flux is designed for soldering metals. Flux is a low-melting alloy of metals through which two materials are soldered. Activators for fluxes for soldering and brazing aluminium often contain fluorides.

Place the rosin inside the jar if you cant wait for it to dissolve youd want to grind up the crystals to a fine dust this will vastly improve the time it takes to dissolve from hours to minutes. You can now use the pine tar-alcohol mixture as your flux. The solder will not cling to the surfaces and the oxides will break away causing the joint to fail.

Any tips to make the soldering process better would be helpful if you have done this before. When it can be soldered it can only be done so by first pre-tinning the surface of the aluminum. Trying to use a solid core solder without flux will result in a practically useless joint.

Place the strainer in the kitchen sink for washing later. The SIF Aluminium flux is used as a temperature indicator and can be applied via the rod or applied direct to the workpiece as a paste made by mixing the flux with water. As the screen material had to be sandwiched between two of my aluminium frames there were two identical frames for each opening.