| 摘要 |
The invention relates to a quick-coupling device (1) that does not require external elements for coupling, intended for the coupling of thermal lances used for the fusion cutting and/or piercing of any type of material, for example, for piercing and opening tapping passages in melting furnaces that use plugs made of clay or mixtures of, inter alia, alumina, silica and carbon. The device comprises a hollow cylinder having bevelled ends and two circular internal grooves in each end of the device. The invention also relates to the use of the coupling device for coupling with thermal lances comprising at least one inverted conical end and having an annular external groove in the casing thereof. |
