Termite pencil - manufacture
Termite pencil - manufacture |
A regular match suggested the construction of a thermite pencil. With its help, it is quite possible to weld simple country metal products at the dacha section. A pencil is a piece of wire made of ordinary carbon steel. Its diameter - from 2 to 3 mm - depends on the thickness of the parts to be welded. The thicker, the bigger the diameter. Outside, a thermite mix is applied to the wire, steeply mixed with glue. Its composition: 24% (by volume) of sawdust of aluminum, (but not of sulumin alloy), and 76% of iron scale. The particle size is up to 0.5 mm. At the end of the termite pencil is a seed very similar to a match head. It consists of 1 part (by weight) of bertholets salt and 0.5 parts of fine aluminum sawdust. Both components are also kneaded with glue. It is understood that the seed is needed to initiate a combustion reaction. That's the whole trick. But remember that when welding, be sure to use a holder and glasses with dark glasses. |
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