Metal treatment – Process of modifying or maintaining internal physical... – Chemical-heat removing or burning of metal
Patent
1985-03-22
1986-08-05
Brody, Christopher W.
Metal treatment
Process of modifying or maintaining internal physical...
Chemical-heat removing or burning of metal
148155, 266114, 266121, C21D 100
Patent
active
046041494
ABSTRACT:
A process for hardening elongate metal elements having a circular section, according to which the said elements are made to advance through a heating station and a hardening station by a conveyer device formed by a succession of advancement and support devices individually controllable in a direction transverse the said elements in such a way as to maintain the axis of each of the elements always coincident with a predetermined axis of advancement each advancement device being individually controllable in such a way as to impart to each point of each element displacements with a controllable velocity along cylindrical helices the pitch of which can be varied from zero to infinity and, in particular, to impart to each element during the traverse through a current of cooling fluid generated within the said hardening station transversely of the axis advancement, a rotary and translational movement with a velocity variable according to laws depending on the distribution of mass along the element itself.
REFERENCES:
patent: 3255053 (1966-06-01), Bard et al.
patent: 3915763 (1975-10-01), Jennings et al.
Brody Christopher W.
Olivotto S.p.A.
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