How To Make Aluminium Soldering Flux

Typical compounds used are carboxylic acids eg.

How to make aluminium soldering flux. I made all our fly screens with aluminium strip 18 thick and 58 wide. Do nothing until all of the juice has strained through. One well-known solution is to use a piece of polyvinylchloride tube as flux when soldering.

Also keep in mind that its always most challenging when soldering aluminum-to-aluminum. Then resolder the same connection with some neutral flux. The rods are very cheap.

The citric acid flux you have made can now be used to prepare metal for soldering. In previous videos we compared different types of commercial flux but did you know its possible to make a simple and effective flux at home. 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. A method is presented to permit the easy soldering of copper directly to an aluminium substrate that is readily reproducible be persons with basic metalworking skills using only a propane torch using Alumalloy Braze and conventional resin flux 6040 PbSn solder. The whole workpiece should be pre-heated with the blowpipe moving backwards and forwards along the joint line.

Flux is a wonderful goo that makes soldering faster and easier. It is mainly used to prevent oxidation of the base and filler materials. 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.

I dont know the exact chemistry of this method but it worked for me to solder aluminium wires but not thin foil. Cover the container and allow the mixture to sit for at least 8 to 12 hours. I would like to know from first hand experience which products to buy and from where to get a quality bond please.