C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 1/09 (2006.01) A63C 3/10 (2006.01) A63C 5/048 (2006.01) A63C 5/14 (2006.01) A63C 11/06 (2006.01) C21D 1/18 (2006.01) C21D 9/00 (2006.01) C21D 9/20 (2006.01)
Patent
CA 2140310
Process for the processing of steel edges for skis or the like wherein the steeledge is rapidly heated at least in part, preferably at least in the region of the edge forming the outer limit of the running surface of the ski, thereafter beingrapidly cooled again and thereby hardened. In order to provide a process which is insensitive in relation to surface properties and which in an economic mannerprovides an accurately defined partial hardening of steel edges of skis or the like in a longitudinal section of optional length and in a reliable manner, an energybeam E is employed for rapid heating, preferably a plasma beam of which the energy at any instance is accurately defined and thereafter the material is preferably merely cooled. The plasma head 9 for the hardening of the edges of steel materials, in particular for carrying out the process, includes a casing 13, 14 sub-divided by insulating material 15, means for the introduction of a gas, around rod-shaped cathode 18 around which flows the gas and an anode 20, 20' surrounding one end of the cathode, having an aperture 21, 21' for the emission of the plasma beam E, a bush 22, preferably of insulation material and having radial bores 27 being provided around the cathode 18 for feeding the gas, which bush leaves an annular gap 23 around the cathode.
Fischer Gesellschaft M.b.h.
Macrae & Co.
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