When finished, do not rush to sweep away the iron filings: putting them on paper with the help of the charge from the back of the magnet and adding rosin, it is possible to make flux for soldering pencil. It is particularly effective when the tinning of aluminum. Pour the molten rosin with the addition of sawdust into a tube, twisted impregnated with paraffin paper. After cooling this “joint” is easily unwound, freeing the finished rosin core.
V. FEDOROV, Chop, Transcarpathian region.
Recommend to read
KAMOV Ka-226
Universal multipurpose coaxial helicopter Ka-226 can be used in the transport, medical, agricultural and patrol variants. The multiplicity of application is provided not by modifying the...
ARSENAL QUALITY
CHAINMAIL FOR THE METAL. Like invisible arrows, affects the corrosion of metal surfaces operating in hostile or wet environments. Rust stains, caked wounds cover almost the entire...
