Tuyeres

[Philip Davies]

I have used this type of tuyere for several years, although it’s not usually going for more than a couple of hours, and the fuel is charcoal. It is a bottom blast, supported on bars below a layer of ordinary Victorian house bricks. So long as the air flow is continuous, it does not block up. The stop end can simply be unscrewed if ash accumulates, but I don’t usually need to do this while forging. I have also used coke. Charcoal produces very little slag. The benefit of an old sledge hammer head is that slag does not stick to it, even using coke.



Now I want to experiment using a side blast, which is why this tuyere has no stop end.

A note of caution. To fit the pipe to the hammer eye, I had to heat it. It is better not to use galvanised pipe, because of zinc fumes-which can kill! The tubes are not galvanised, although they appear to be, in these pictures.

[mudnducs]

Whats a tuyere?

[Philip Davies]

It is a tube into a forge or furnace through which air passes, which makes the fire burn hotter. The air is forced, using bellows, or an air pump.