MOULD

A mould features at least at one place a pair of wires (6,7) which form a thermocouple and make first contact outside the mould. The said wires are (6,7) inserted into the mould in such a manner that their other ends are separated from the surface of the mould facing the melt by a metallic layer (4) which joins these wires (6,7) and is at most 100 .mu.m thick. A process for manufacturing this mould is such that the metallic layer (4) is electro-deposited on to the ends of the wires (6,7). The mould finds application preferably in a continuous strip casting unit which has a pair of cooled, moving, caterpillar type moulds. (figure 2)