| 摘要 |
A method is described for continuously producing very small diameter metal wire from molten material, comprising at least one heating stage for heating in a first predetermined position a glass tube in which a wire of metal material is disposed, these being fed in the direction of their longitudinal axis in such a manner as to cause said glass to soften to a required viscosity and said material to melt in order to form a wire, and a cooling stage for cooling, in a second predetermined position, said wire on which a required traction is exerted; the method is characterised in that said second predetermined position, in which said wire cooling stage is carried out, is located, with respect to said first position, at such a location along the wire axis that solidification of said material takes place in a section situated not before the limiting section at which the reduction in cross-section of said wire terminates, the quantity of heat removed during said cooling stage being sufficiently high to prevent softening of the glass of said tube downstream of said limiting section.
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